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V2.0.2.0 新增 By Ray 2020-08-24
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/*******************************************************

 CoolReader Engine

 lvdocview.cpp:  XML DOM tree rendering tools

 (c) Vadim Lopatin, 2000-2009
 This source code is distributed under the terms of
 GNU General Public License
 See LICENSE file for details

 *******************************************************/

#include "StdAfx.h"
#include "../include/crsetup.h"
#include "../include/fb2def.h"
#include "../include/lvdocview.h"
#include "../include/rtfimp.h"

#include "../include/lvstyles.h"
#include "../include/lvrend.h"
#include "../include/lvstsheet.h"

#include "../include/wolutil.h"
#include "../include/crtxtenc.h"
#include "../include/crtrace.h"
#include "../include/epubfmt.h"
#include "../include/chmfmt.h"
#include "../include/wordfmt.h"
#include "../include/pdbfmt.h"
#include "lvtinydom.h"
/// to show page bounds rectangles
//#define SHOW_PAGE_RECT

/// uncomment to save copy of loaded document to file
//#define SAVE_COPY_OF_LOADED_DOCUMENT

// TESTING GRAYSCALE MODE
#if 0
#undef COLOR_BACKBUFFER
#define COLOR_BACKBUFFER 0
#undef GRAY_BACKBUFFER_BITS
#define GRAY_BACKBUFFER_BITS 4
#endif


#if 0
#define REQUEST_RENDER(txt) {CRLog::trace("request render from "  txt); requestRender();}
#define CHECK_RENDER(txt) {CRLog::trace("LVDocView::checkRender() - from " txt); checkRender();}
#else
#define REQUEST_RENDER(txt) requestRender();
#define CHECK_RENDER(txt) checkRender();
#endif

/// to avoid showing title/author if coverpage image present
#define NO_TEXT_IN_COVERPAGE

const char
		* def_stylesheet =
				"image { text-align: center; text-indent: 0px } \n"
					"empty-line { height: 1em; } \n"
					"sub { vertical-align: sub; font-size: 70% }\n"
					"sup { vertical-align: super; font-size: 70% }\n"
					"body > image, section > image { text-align: center; margin-before: 1em; margin-after: 1em }\n"
					"p > image { display: inline }\n"
					"a { vertical-align: super; font-size: 80% }\n"
					"p { margin-top:0em; margin-bottom: 0em }\n"
					"text-author { font-weight: bold; font-style: italic; margin-left: 5%}\n"
					"empty-line { height: 1em }\n"
					"epigraph { margin-left: 30%; margin-right: 4%; text-align: left; text-indent: 1px; font-style: italic; margin-top: 15px; margin-bottom: 25px; font-family: Times New Roman, serif }\n"
					"strong, b { font-weight: bold }\n"
					"emphasis, i { font-style: italic }\n"
					"title { text-align: center; text-indent: 0px; font-size: 130%; font-weight: bold; margin-top: 10px; margin-bottom: 10px; font-family: Times New Roman, serif }\n"
					"subtitle { text-align: center; text-indent: 0px; font-size: 150%; margin-top: 10px; margin-bottom: 10px }\n"
					"title { page-break-before: always; page-break-inside: avoid; page-break-after: avoid; }\n"
					"body { text-align: justify; text-indent: 2em }\n"
					"cite { margin-left: 30%; margin-right: 4%; text-align: justyfy; text-indent: 0px;  margin-top: 20px; margin-bottom: 20px; font-family: Times New Roman, serif }\n"
					"td, th { text-indent: 0px; font-size: 80%; margin-left: 2px; margin-right: 2px; margin-top: 2px; margin-bottom: 2px; text-align: left; padding: 5px }\n"
					"th { font-weight: bold }\n"
					"table > caption { padding: 5px; text-indent: 0px; font-size: 80%; font-weight: bold; text-align: left; background-color: #AAAAAA }\n"
					"body[name=\"notes\"] { font-size: 70%; }\n"
					"body[name=\"notes\"]  section[id] { text-align: left; }\n"
					"body[name=\"notes\"]  section[id] title { display: block; text-align: left; font-size: 110%; font-weight: bold; page-break-before: auto; page-break-inside: auto; page-break-after: auto; }\n"
					"body[name=\"notes\"]  section[id] title p { text-align: left; display: inline }\n"
					"body[name=\"notes\"]  section[id] empty-line { display: inline }\n"
					"code, pre { display: block; white-space: pre; font-family: \"Courier New\", monospace }\n";

static const char * DEFAULT_FONT_NAME = "Arial, DejaVu Sans"; //Times New Roman";
static const char * DEFAULT_STATUS_FONT_NAME =
		"Arial Narrow, Arial, DejaVu Sans"; //Times New Roman";
static css_font_family_t DEFAULT_FONT_FAMILY = css_ff_sans_serif;
//    css_ff_serif,
//    css_ff_sans_serif,
//    css_ff_cursive,
//    css_ff_fantasy,
//    css_ff_monospace

#ifdef LBOOK
#define INFO_FONT_SIZE      22
#else
#define INFO_FONT_SIZE      22
#endif

#if defined(__SYMBIAN32__)
#include <e32std.h>
#define DEFAULT_PAGE_MARGIN 2
#else
#ifdef LBOOK
#define DEFAULT_PAGE_MARGIN      8
#else
#define DEFAULT_PAGE_MARGIN      12
#endif
#endif

/// minimum EM width of page (prevents show two pages for windows that not enougn wide)
#define MIN_EM_PER_PAGE     20

static int def_font_sizes[] = { 18, 20, 22, 24, 29, 33, 39, 44 };
//zz begin
extern TP_NOTES_TYPE  g_penNote_state;
extern int g_penNote_width;
extern lUInt32 g_penNote_color;
//extern DrawLineNotify * g_drawNotify;
//zz end
LVDocView::LVDocView(int bitsPerPixel) :
	m_bitsPerPixel(bitsPerPixel), m_dx(400), m_dy(200), _pos(0), _page(0),
			_posIsSet(false), m_battery_state(CR_BATTERY_STATE_NO_BATTERY)
#if (LBOOK==1)
			, m_font_size(32)
#elif defined(__SYMBIAN32__)
			, m_font_size(30)
#else
			, m_font_size(24)
#endif
			, m_status_font_size(INFO_FONT_SIZE),
			m_def_interline_space(100),
			m_font_sizes(def_font_sizes, sizeof(def_font_sizes) / sizeof(int)),
			m_font_sizes_cyclic(false),
			m_is_rendered(false),
			m_view_mode(1 ? DVM_PAGES : DVM_SCROLL) // choose 0/1
			/*
			 , m_drawbuf(100, 100
			 #if COLOR_BACKBUFFER==0
			 , GRAY_BACKBUFFER_BITS
			 #endif
			 )
			 */
			, m_stream(NULL), m_doc(NULL), m_stylesheet(def_stylesheet),
            m_backgroundTiled(true),
            m_highlightBookmarks(1),
			m_pageMargins(DEFAULT_PAGE_MARGIN,
					DEFAULT_PAGE_MARGIN / 2 /*+ INFO_FONT_SIZE + 4 */,
					DEFAULT_PAGE_MARGIN, DEFAULT_PAGE_MARGIN / 2),
			m_pagesVisible(2), m_pageHeaderInfo(PGHDR_PAGE_NUMBER
#ifndef LBOOK
					| PGHDR_CLOCK
#endif
					| PGHDR_BATTERY | PGHDR_PAGE_COUNT | PGHDR_AUTHOR
					| PGHDR_TITLE), m_showCover(true)
#if CR_INTERNAL_PAGE_ORIENTATION==1
			, m_rotateAngle(CR_ROTATE_ANGLE_0)
#endif
			, m_section_bounds_valid(false), m_doc_format(doc_format_none),
			m_callback(NULL), m_swapDone(false), m_drawBufferBits(
					GRAY_BACKBUFFER_BITS) {
#if (COLOR_BACKBUFFER==1)
	m_backgroundColor = 0xFFFFE0;
	m_textColor = 0x000060;
#else
#if (GRAY_INVERSE==1)
	m_backgroundColor = 0;
	m_textColor = 3;
#else
	m_backgroundColor = 3;
	m_textColor = 0;
#endif
#endif
	m_statusColor = 0xFF000000;
	m_defaultFontFace = lString8(DEFAULT_FONT_NAME);
	m_statusFontFace = lString8(DEFAULT_STATUS_FONT_NAME);
	m_props = LVCreatePropsContainer();
	m_doc_props = LVCreatePropsContainer();
	propsUpdateDefaults( m_props);

	//m_drawbuf.Clear(m_backgroundColor);
    createDefaultDocument(cs16("No document"), lString16(
			L"Welcome to CoolReader! Please select file to open"));

    m_font = fontMan->GetFont(m_font_size, 400, false, DEFAULT_FONT_FAMILY,
			m_defaultFontFace);
	m_infoFont = fontMan->GetFont(m_status_font_size, 700, false,
			DEFAULT_FONT_FAMILY, m_statusFontFace);
#ifdef ANDROID
	//m_batteryFont = fontMan->GetFont( 20, 700, false, DEFAULT_FONT_FAMILY, m_statusFontFace );
#endif

}

LVDocView::~LVDocView() {
	Clear();
}

CRPageSkinRef LVDocView::getPageSkin() {
	return _pageSkin;
}

void LVDocView::setPageSkin(CRPageSkinRef skin) {
	_pageSkin = skin;
}

/// get text format options
txt_format_t LVDocView::getTextFormatOptions() {
    return m_doc && m_doc->getDocFlag(DOC_FLAG_PREFORMATTED_TEXT) ? txt_format_pre
			: txt_format_auto;
}

/// set text format options
void LVDocView::setTextFormatOptions(txt_format_t fmt) {
	txt_format_t m_text_format = getTextFormatOptions();
	CRLog::trace("setTextFormatOptions( %d ), current state = %d", (int) fmt,
			(int) m_text_format);
	if (m_text_format == fmt)
		return; // no change
	m_props->setBool(PROP_TXT_OPTION_PREFORMATTED, (fmt == txt_format_pre));
	m_doc->setDocFlag(DOC_FLAG_PREFORMATTED_TEXT, (fmt == txt_format_pre));
	if (getDocFormat() == doc_format_txt) {
		requestReload();
		CRLog::trace(
				"setTextFormatOptions() -- new value set, reload requested");
	} else {
		CRLog::trace(
				"setTextFormatOptions() -- doc format is %d, reload is necessary for %d only",
				(int) getDocFormat(), (int) doc_format_txt);
	}
}

/// invalidate document data, request reload
void LVDocView::requestReload() {
	if (getDocFormat() != doc_format_txt)
		return; // supported for text files only
	if (m_callback) {
        if (m_callback->OnRequestReload()) {
            CRLog::info("LVDocView::requestReload() : reload request will be processed by external code");
            return;
        }
        m_callback->OnLoadFileStart(m_doc_props->getStringDef(
				DOC_PROP_FILE_NAME, ""));
	}
	if (m_stream.isNull() && isDocumentOpened()) {
		savePosition();
		CRFileHist * hist = getHistory();
		if (!hist || hist->getRecords().length() <= 0)
			return;
        //lString16 fn = hist->getRecords()[0]->getFilePathName();
        lString16 fn = m_filename;
		bool res = LoadDocument(fn.c_str());
		if (res) {
			//swapToCache();
			restorePosition();
		} else {
            createDefaultDocument(lString16::empty_str, lString16(
					"Error while opening document ") + fn);
		}
		checkRender();
		return;
	}
	ParseDocument();
	// TODO: save position
	checkRender();
}

/// returns true if document is opened
bool LVDocView::isDocumentOpened() {
	return m_doc && m_doc->getRootNode() && !m_doc_props->getStringDef(
			DOC_PROP_FILE_NAME, "").empty();
}

/// rotate rectangle by current angle, winToDoc==false for doc->window translation, true==ccw
lvRect LVDocView::rotateRect(lvRect & rc, bool winToDoc) {
#if CR_INTERNAL_PAGE_ORIENTATION==1
	lvRect rc2;
	cr_rotate_angle_t angle = m_rotateAngle;
	if ( winToDoc )
	angle = (cr_rotate_angle_t)((4 - (int)angle) & 3);
	switch ( angle ) {
		case CR_ROTATE_ANGLE_0:
		rc2 = rc;
		break;
		case CR_ROTATE_ANGLE_90:
		/*
		 . . . . . .      . . . . . . . .
		 . . . . . .      . . . . . 1 . .
		 . 1 . . . .      . . . . . . . .
		 . . . . . .  ==> . . . . . . . .
		 . . . . . .      . 2 . . . . . .
		 . . . . . .      . . . . . . . .
		 . . . . 2 .
		 . . . . . .

		 */
		rc2.left = m_dy - rc.bottom - 1;
		rc2.right = m_dy - rc.top - 1;
		rc2.top = rc.left;
		rc2.bottom = rc.right;
		break;
		case CR_ROTATE_ANGLE_180:
		rc2.left = m_dx - rc.left - 1;
		rc2.right = m_dx - rc.right - 1;
		rc2.top = m_dy - rc.top - 1;
		rc2.bottom = m_dy - rc.bottom - 1;
		break;
		case CR_ROTATE_ANGLE_270:
		/*
		 . . . . . .      . . . . . . . .
		 . . . . . .      . 1 . . . . . .
		 . . . . 2 .      . . . . . . . .
		 . . . . . .  <== . . . . . . . .
		 . . . . . .      . . . . . 2 . .
		 . . . . . .      . . . . . . . .
		 . 1 . . . .
		 . . . . . .

		 */
		rc2.left = rc.top;
		rc2.right = rc.bottom;
		rc2.top = m_dx - rc.right - 1;
		rc2.bottom = m_dx - rc.left - 1;
		break;
	}
	return rc2;
#else
	return rc;
#endif
}

/// rotate point by current angle, winToDoc==false for doc->window translation, true==ccw
lvPoint LVDocView::rotatePoint(lvPoint & pt, bool winToDoc) {
#if CR_INTERNAL_PAGE_ORIENTATION==1
	lvPoint pt2;
	cr_rotate_angle_t angle = m_rotateAngle;
	if ( winToDoc )
	angle = (cr_rotate_angle_t)((4 - (int)angle) & 3);
	switch ( angle ) {
		case CR_ROTATE_ANGLE_0:
		pt2 = pt;
		break;
		case CR_ROTATE_ANGLE_90:
		/*
		 . . . . . .      . . . . . . . .
		 . . . . . .      . . . . . 1 . .
		 . 1 . . . .      . . . . . . . .
		 . . . . . .  ==> . . . . . . . .
		 . . . . . .      . 2 . . . . . .
		 . . . . . .      . . . . . . . .
		 . . . . 2 .
		 . . . . . .

		 */
		pt2.y = pt.x;
		pt2.x = m_dx - pt.y - 1;
		break;
		case CR_ROTATE_ANGLE_180:
		pt2.y = m_dy - pt.y - 1;
		pt2.x = m_dx - pt.x - 1;
		break;
		case CR_ROTATE_ANGLE_270:
		/*
		 . . . . . .      . . . . . . . .
		 . . . . . .      . 1 . . . . . .
		 . . . . 2 .      . . . . . . . .
		 . . . . . .  <== . . . . . . . .
		 . . . . . .      . . . . . 2 . .
		 . . . . . .      . . . . . . . .
		 . 1 . . . .
		 . . . . . .

		 */
		pt2.y = m_dy - pt.x - 1;
		pt2.x = pt.y;
		break;
	}
	return pt2;
#else
	return pt;
#endif
}

/// sets page margins
void LVDocView::setPageMargins(const lvRect & rc) {
	if (m_pageMargins.left + m_pageMargins.right != rc.left + rc.right
            || m_pageMargins.top + m_pageMargins.bottom != rc.top + rc.bottom) {

        m_pageMargins = rc;
        updateLayout();
        REQUEST_RENDER("setPageMargins")
    } else {
		clearImageCache();
        m_pageMargins = rc;
    }
}

void LVDocView::setPageHeaderInfo(int hdrFlags) {
	if (m_pageHeaderInfo == hdrFlags)
		return;
	LVLock lock(getMutex());
	int oldH = getPageHeaderHeight();
	m_pageHeaderInfo = hdrFlags;
	int h = getPageHeaderHeight();
	if (h != oldH) {
        REQUEST_RENDER("setPageHeaderInfo")
	} else {
		clearImageCache();
	}
}

lString16 mergeCssMacros(CRPropRef props) {
    lString8 res = lString8::empty_str;
    for (int i=0; i<props->getCount(); i++) {
    	lString8 n(props->getName(i));
    	if (n.endsWith(".day") || n.endsWith(".night"))
    		continue;
        lString16 v = props->getValue(i);
        if (!v.empty()) {
            if (v.lastChar() != ';')
                v.append(1, ';');
            if (v.lastChar() != ' ')
                v.append(1, ' ');
            res.append(UnicodeToUtf8(v));
        }
    }
    //CRLog::trace("merged: %s", res.c_str());
    return Utf8ToUnicode(res);
}

lString8 substituteCssMacros(lString8 src, CRPropRef props) {
    lString8 res = lString8(src.length());
    const char * s = src.c_str();
    for (; *s; s++) {
        if (*s == '$') {
            const char * s2 = s + 1;
            bool err = false;
            for (; *s2 && *s2 != ';' && *s2 != '}' &&  *s2 != ' ' &&  *s2 != '\r' &&  *s2 != '\n' &&  *s2 != '\t'; s2++) {
                char ch = *s2;
                if (ch != '.' && ch != '-' && (ch < 'a' || ch > 'z')) {
                    err = true;
                }
            }
            if (!err) {
                // substitute variable
                lString8 prop(s + 1, s2 - s - 1);
                lString16 v;
                // $styles.stylename.all will merge all properties like styles.stylename.*
                if (prop.endsWith(".all")) {
                    // merge whole branch
                    v = mergeCssMacros(props->getSubProps(prop.substr(0, prop.length() - 3).c_str()));
                    //CRLog::trace("merged %s = %s", prop.c_str(), LCSTR(v));
                } else {
                    // single property
                    props->getString(prop.c_str(), v);
                    if (!v.empty()) {
                        if (v.lastChar() != ';')
                            v.append(1, ';');
                        if (v.lastChar() != ' ')
                            v.append(1, ' ');
                    }
                }
                if (!v.empty()) {
                    res.append(UnicodeToUtf8(v));
                } else {
                    //CRLog::trace("CSS macro not found: %s", prop.c_str());
                }
            }
            s = s2;
        } else {
            res.append(1, *s);
        }
    }
    return res;
}

/// set document stylesheet text
void LVDocView::setStyleSheet(lString8 css_text) {
	LVLock lock(getMutex());
    REQUEST_RENDER("setStyleSheet")
    m_stylesheet = css_text;
}

void LVDocView::updateDocStyleSheet() {
    CRPropRef p = m_props->getSubProps("styles.");
    m_doc->setStyleSheet(substituteCssMacros(m_stylesheet, p).c_str(), true);
}

void LVDocView::Clear() {
	{
		LVLock lock(getMutex());
		if (m_doc)
			delete m_doc;
		m_doc = NULL;
		m_doc_props->clear();
		if (!m_stream.isNull())
			m_stream.Clear();
		if (!m_container.isNull())
			m_container.Clear();
		if (!m_arc.isNull())
			m_arc.Clear();
		_posBookmark = ldomXPointer();
		m_is_rendered = false;
		m_swapDone = false;
		_pos = 0;
		_page = 0;
		_posIsSet = false;
		m_cursorPos.clear();
		m_filename.clear();
		m_section_bounds_valid = false;
	}
	clearImageCache();
	_navigationHistory.clear();
}

/// invalidate image cache, request redraw
void LVDocView::clearImageCache() {
#if CR_ENABLE_PAGE_IMAGE_CACHE==1
	m_imageCache.clear();
#endif
    m_section_bounds_valid = false;
	if (m_callback != NULL)
		m_callback->OnImageCacheClear();
}

/// invalidate formatted data, request render
void LVDocView::requestRender() {
	m_is_rendered = false;
	clearImageCache();
	m_doc->clearRendBlockCache();
}

/// render document, if not rendered
void LVDocView::checkRender() {
	if (!m_is_rendered) {
		LVLock lock(getMutex());
		CRLog::trace("LVDocView::checkRender() : render is required");
		Render();
		clearImageCache();
		m_is_rendered = true;
		_posIsSet = false;
		//CRLog::trace("LVDocView::checkRender() compeleted");
	}
}

/// ensure current position is set to current bookmark value
void LVDocView::checkPos() {
    CHECK_RENDER("checkPos()");
	if (_posIsSet)
		return;
	_posIsSet = true;
	LVLock lock(getMutex());
	if (_posBookmark.isNull()) {
		if (isPageMode()) {
			goToPage(0);
		} else {
			SetPos(0, false);
		}
	} else {
		if (isPageMode()) {
			int p = getBookmarkPage(_posBookmark);
            goToPage(p, false);
		} else {
			//CRLog::trace("checkPos() _posBookmark node=%08X offset=%d", (unsigned)_posBookmark.getNode(), (int)_posBookmark.getOffset());
			lvPoint pt = _posBookmark.toPoint();
			SetPos(pt.y, false);
		}
	}
}

#if CR_ENABLE_PAGE_IMAGE_CACHE==1
/// returns true if current page image is ready
bool LVDocView::IsDrawed()
{
	return isPageImageReady( 0 );
}

/// returns true if page image is available (0=current, -1=prev, 1=next)
bool LVDocView::isPageImageReady( int delta )
{
	if ( !m_is_rendered || !_posIsSet )
	return false;
	LVDocImageRef ref;
	if ( isPageMode() ) {
		int p = _page;
		if ( delta<0 )
		p--;
		else if ( delta>0 )
		p++;
		//CRLog::trace("getPageImage: checking cache for page [%d] (delta=%d)", offset, delta);
		ref = m_imageCache.get( -1, p );
	} else {
		int offset = _pos;
		if ( delta<0 )
		offset = getPrevPageOffset();
		else if ( delta>0 )
		offset = getNextPageOffset();
		//CRLog::trace("getPageImage: checking cache for page [%d] (delta=%d)", offset, delta);
		ref = m_imageCache.get( offset, -1 );
	}
	return ( !ref.isNull() );
}

/// get page image
LVDocImageRef LVDocView::getPageImage( int delta )
{
	checkPos();
	// find existing object in cache
	LVDocImageRef ref;
	int p = -1;
	int offset = -1;
	if ( isPageMode() ) {
		p = _page;
		if ( delta<0 )
		p--;
		else if ( delta>0 )
		p++;
		if ( p<0 || p>=m_pages.length() )
		return ref;
		ref = m_imageCache.get( -1, p );
		if ( !ref.isNull() ) {
			//CRLog::trace("getPageImage: + page [%d] found in cache", offset);
			return ref;
		}
	} else {
		offset = _pos;
		if ( delta<0 )
		offset = getPrevPageOffset();
		else if ( delta>0 )
		offset = getNextPageOffset();
		//CRLog::trace("getPageImage: checking cache for page [%d] (delta=%d)", offset, delta);
		ref = m_imageCache.get( offset, -1 );
		if ( !ref.isNull() ) {
			//CRLog::trace("getPageImage: + page [%d] found in cache", offset);
			return ref;
		}
	}
	while ( ref.isNull() ) {
		//CRLog::trace("getPageImage: - page [%d] not found, force rendering", offset);
		cachePageImage( delta );
		ref = m_imageCache.get( offset, p );
	}
	//CRLog::trace("getPageImage: page [%d] is ready", offset);
	return ref;
}

class LVDrawThread : public LVThread {
	LVDocView * _view;
	int _offset;
	int _page;
	LVRef<LVDrawBuf> _drawbuf;
public:
	LVDrawThread( LVDocView * view, int offset, int page, LVRef<LVDrawBuf> drawbuf )
	: _view(view), _offset(offset), _page(page), _drawbuf(drawbuf)
	{
		start();
	}
	virtual void run()
	{
		//CRLog::trace("LVDrawThread::run() offset==%d", _offset);
		_view->Draw( *_drawbuf, _offset, _page, true );
		//_drawbuf->Rotate( _view->GetRotateAngle() );
	}
};
#endif

/// draw current page to specified buffer
void LVDocView::Draw(LVDrawBuf & drawbuf) {
	int offset = -1;
	int p = -1;
	if (isPageMode()) {
		p = _page;
		if (p < 0 || p >= m_pages.length())
			return;
	} else {
		offset = _pos;
	}
	//CRLog::trace("Draw() : calling Draw(buf(%d x %d), %d, %d, false)",
	//		drawbuf.GetWidth(), drawbuf.GetHeight(), offset, p);
	Draw(drawbuf, offset, p, false);
}

#if CR_ENABLE_PAGE_IMAGE_CACHE==1
/// cache page image (render in background if necessary)
void LVDocView::cachePageImage( int delta )
{
	int offset = -1;
	int p = -1;
	if ( isPageMode() ) {
		p = _page;
		if ( delta<0 )
		p--;
		else if ( delta>0 )
		p++;
		if ( p<0 || p>=m_pages.length() )
		return;
	} else {
		offset = _pos;
		if ( delta<0 )
		offset = getPrevPageOffset();
		else if ( delta>0 )
		offset = getNextPageOffset();
	}
	//CRLog::trace("cachePageImage: request to cache page [%d] (delta=%d)", offset, delta);
	if ( m_imageCache.has(offset, p) ) {
		//CRLog::trace("cachePageImage: Page [%d] is found in cache", offset);
		return;
	}
	//CRLog::trace("cachePageImage: starting new render task for page [%d]", offset);
	LVDrawBuf * buf = NULL;
	if ( m_bitsPerPixel==-1 ) {
#if (COLOR_BACKBUFFER==1)
        buf = new LVColorDrawBuf( m_dx, m_dy, DEF_COLOR_BUFFER_BPP );
#else
		buf = new LVGrayDrawBuf( m_dx, m_dy, m_drawBufferBits );
#endif
	} else {
        if ( m_bitsPerPixel==32 || m_bitsPerPixel==16 ) {
            buf = new LVColorDrawBuf( m_dx, m_dy, m_bitsPerPixel );
		} else {
			buf = new LVGrayDrawBuf( m_dx, m_dy, m_bitsPerPixel );
		}
	}
	LVRef<LVDrawBuf> drawbuf( buf );
	LVRef<LVThread> thread( new LVDrawThread( this, offset, p, drawbuf ) );
	m_imageCache.set( offset, p, drawbuf, thread );
	//CRLog::trace("cachePageImage: caching page [%d] is finished", offset);
}
#endif

bool LVDocView::exportWolFile(const char * fname, bool flgGray, int levels) {
	LVStreamRef stream = LVOpenFileStream(fname, LVOM_WRITE);
	if (!stream)
		return false;
	return exportWolFile(stream.get(), flgGray, levels);
}

bool LVDocView::exportWolFile(const wchar_t * fname, bool flgGray, int levels) {
	LVStreamRef stream = LVOpenFileStream(fname, LVOM_WRITE);
	if (!stream)
		return false;
	return exportWolFile(stream.get(), flgGray, levels);
}

void dumpSection(ldomNode * elem) {
	lvRect rc;
	elem->getAbsRect(rc);
	//fprintf( log.f, "rect(%d, %d, %d, %d)  ", rc.left, rc.top, rc.right, rc.bottom );
}

LVTocItem * LVDocView::getToc() {
	if (!m_doc)
		return NULL;
	updatePageNumbers(m_doc->getToc());
	return m_doc->getToc();
}

static lString16 getSectionHeader(ldomNode * section) {
	lString16 header;
	if (!section || section->getChildCount() == 0)
		return header;
    ldomNode * child = section->getChildElementNode(0, L"title");
    if (!child)
		return header;
	header = child->getText(L' ', 1024);
	return header;
}

int getSectionPage(ldomNode * section, LVRendPageList & pages) {
	if (!section)
		return -1;
#if 1
	int y = ldomXPointer(section, 0).toPoint().y;
#else
	lvRect rc;
	section->getAbsRect(rc);
	int y = rc.top;
#endif
	int page = -1;
	if (y >= 0) {
		page = pages.FindNearestPage(y, -1);
		//dumpSection( section );
		//fprintf(log.f, "page %d: %d->%d..%d\n", page+1, y, pages[page].start, pages[page].start+pages[page].height );
	}
	return page;
}

/*
 static void addTocItems( ldomNode * basesection, LVTocItem * parent )
 {
 if ( !basesection || !parent )
 return;
 lString16 name = getSectionHeader( basesection );
 if ( name.empty() )
 return; // section without header
 ldomXPointer ptr( basesection, 0 );
 LVTocItem * item = parent->addChild( name, ptr );
 int cnt = basesection->getChildCount();
 for ( int i=0; i<cnt; i++ ) {
 ldomNode * section = basesection->getChildNode(i);
 if ( section->getNodeId() != el_section  )
 continue;
 addTocItems( section, item );
 }
 }

 void LVDocView::makeToc()
 {
 LVTocItem * toc = m_doc->getToc();
 if ( toc->getChildCount() ) {
 return;
 }
 CRLog::info("LVDocView::makeToc()");
 toc->clear();
 ldomNode * body = m_doc->getRootNode();
 if ( !body )
 return;
 body = body->findChildElement( LXML_NS_ANY, el_FictionBook, -1 );
 if ( body )
 body = body->findChildElement( LXML_NS_ANY, el_body, 0 );
 if ( !body )
 return;
 int cnt = body->getChildCount();
 for ( int i=0; i<cnt; i++ ) {
 ldomNode * section = body->getChildNode(i);
 if ( section->getNodeId()!=el_section )
 continue;
 addTocItems( section, toc );
 }
 }
 */

/// update page numbers for items
void LVDocView::updatePageNumbers(LVTocItem * item) {
	if (!item->getXPointer().isNull()) {
		lvPoint p = item->getXPointer().toPoint();
		int y = p.y;
		int h = GetFullHeight();
		int page = getBookmarkPage(item->_position);
		if (page >= 0 && page < getPageCount())
			item->_page = page;
		else
			item->_page = -1;
		if (y >= 0 && y < h && h > 0)
			item->_percent = (int) ((lInt64) y * 10000 / h); // % * 100
		else
			item->_percent = -1;
	} else {
		//CRLog::error("Page position is not found for path %s", LCSTR(item->getPath()) );
		// unknown position
		item->_page = -1;
		item->_percent = -1;
	}
	for (int i = 0; i < item->getChildCount(); i++) {
		updatePageNumbers(item->getChild(i));
	}
}

/// returns cover page image stream, if any
LVStreamRef LVDocView::getCoverPageImageStream() {
    lString16 fileName;
    //m_doc_props
//    for ( int i=0; i<m_doc_props->getCount(); i++ ) {
//        CRLog::debug("%s = %s", m_doc_props->getName(i), LCSTR(m_doc_props->getValue(i)));
//    }
    m_doc_props->getString(DOC_PROP_COVER_FILE, fileName);
//    CRLog::debug("coverpage = %s", LCSTR(fileName));
    if ( !fileName.empty() ) {
//        CRLog::debug("trying to open %s", LCSTR(fileName));
    	LVContainerRef cont = m_doc->getContainer();
    	if ( cont.isNull() )
    		cont = m_container;
        LVStreamRef stream = cont->OpenStream(fileName.c_str(), LVOM_READ);
        if ( stream.isNull() ) {
            CRLog::error("Cannot open coverpage image from %s", LCSTR(fileName));
            for ( int i=0; i<cont->GetObjectCount(); i++ ) {
                CRLog::info("item %d : %s", i+1, LCSTR(cont->GetObjectInfo(i)->GetName()));
            }
        } else {
//            CRLog::debug("coverpage file %s is opened ok", LCSTR(fileName));
        }
        return stream;
    }

    // FB2 coverpage
	//CRLog::trace("LVDocView::getCoverPageImage()");
	//m_doc->dumpStatistics();
	lUInt16 path[] = { el_FictionBook, el_description, el_title_info,
			el_coverpage, 0 };
	//lUInt16 path[] = { el_FictionBook, el_description, el_title_info, el_coverpage, el_image, 0 };
	ldomNode * cover_el = m_doc->getRootNode()->findChildElement(path);
	//ldomNode * cover_img_el = m_doc->getRootNode()->findChildElement( path );

	if (cover_el) {
		ldomNode * cover_img_el = cover_el->findChildElement(LXML_NS_ANY,
				el_image, 0);
		if (cover_img_el) {
			LVStreamRef imgsrc = cover_img_el->getObjectImageStream();
			return imgsrc;
		}
	}
	return LVStreamRef(); // not found: return NULL ref
}

/// returns cover page image source, if any
LVImageSourceRef LVDocView::getCoverPageImage() {
	//    LVStreamRef stream = getCoverPageImageStream();
	//    if ( !stream.isNull() )
	//        CRLog::trace("Image stream size is %d", (int)stream->GetSize() );
	//CRLog::trace("LVDocView::getCoverPageImage()");
	//m_doc->dumpStatistics();
	lUInt16 path[] = { el_FictionBook, el_description, el_title_info,
			el_coverpage, 0 };
	//lUInt16 path[] = { el_FictionBook, el_description, el_title_info, el_coverpage, el_image, 0 };
	ldomNode * cover_el = m_doc->getRootNode()->findChildElement(path);
	//ldomNode * cover_img_el = m_doc->getRootNode()->findChildElement( path );

	if (cover_el) {
		ldomNode * cover_img_el = cover_el->findChildElement(LXML_NS_ANY,
				el_image, 0);
		if (cover_img_el) {
			LVImageSourceRef imgsrc = cover_img_el->getObjectImageSource();
			return imgsrc;
		}
	}
	return LVImageSourceRef(); // not found: return NULL ref
}

/// draws coverpage to image buffer
void LVDocView::drawCoverTo(LVDrawBuf * drawBuf, lvRect & rc) {
	if (rc.width() < 130 || rc.height() < 130)
		return;
	int base_font_size = 16;
	int w = rc.width();
	if (w < 200)
		base_font_size = 16;
	else if (w < 300)
		base_font_size = 18;
	else if (w < 500)
		base_font_size = 20;
	else if (w < 700)
		base_font_size = 22;
	else
		base_font_size = 24;
	//CRLog::trace("drawCoverTo() - loading fonts...");
	LVFontRef author_fnt(fontMan->GetFont(base_font_size, 700, false,
            css_ff_serif, cs8("Times New Roman")));
	LVFontRef title_fnt(fontMan->GetFont(base_font_size + 4, 700, false,
            css_ff_serif, cs8("Times New Roman")));
	LVFontRef series_fnt(fontMan->GetFont(base_font_size - 3, 400, true,
            css_ff_serif, cs8("Times New Roman")));
	lString16 authors = getAuthors();
	lString16 title = getTitle();
	lString16 series = getSeries();
	if (title.empty())
        title = "no title";
	LFormattedText txform;
	if (!authors.empty())
		txform.AddSourceLine(authors.c_str(), authors.length(), 0xFFFFFFFF,
				0xFFFFFFFF, author_fnt.get(), LTEXT_ALIGN_CENTER, 18);
	txform.AddSourceLine(title.c_str(), title.length(), 0xFFFFFFFF, 0xFFFFFFFF,
			title_fnt.get(), LTEXT_ALIGN_CENTER, 18);
	if (!series.empty())
		txform.AddSourceLine(series.c_str(), series.length(), 0xFFFFFFFF,
				0xFFFFFFFF, series_fnt.get(), LTEXT_ALIGN_CENTER, 18);
	int title_w = rc.width() - rc.width() / 4;
	int h = txform.Format((lUInt16)title_w, (lUInt16)rc.height());

	lvRect imgrc = rc;

	//CRLog::trace("drawCoverTo() - getting cover image");
	LVImageSourceRef imgsrc = getCoverPageImage();
	LVImageSourceRef defcover = getDefaultCover();
	if (!imgsrc.isNull() && imgrc.height() > 30) {
#ifdef NO_TEXT_IN_COVERPAGE
		h = 0;
#endif
		if (h)
			imgrc.bottom -= h + 16;
		//fprintf( stderr, "Writing coverpage image...\n" );
		int src_dx = imgsrc->GetWidth();
		int src_dy = imgsrc->GetHeight();
		int scale_x = imgrc.width() * 0x10000 / src_dx;
		int scale_y = imgrc.height() * 0x10000 / src_dy;
		if (scale_x < scale_y)
			scale_y = scale_x;
		else
			scale_x = scale_y;
		int dst_dx = (src_dx * scale_x) >> 16;
		int dst_dy = (src_dy * scale_y) >> 16;
        if (dst_dx > rc.width() * 6 / 8)
			dst_dx = imgrc.width();
        if (dst_dy > rc.height() * 6 / 8)
			dst_dy = imgrc.height();
		//CRLog::trace("drawCoverTo() - drawing image");
        LVColorDrawBuf buf2(src_dx, src_dy, 32);
        buf2.Draw(imgsrc, 0, 0, src_dx, src_dy, true);
        drawBuf->DrawRescaled(&buf2, imgrc.left + (imgrc.width() - dst_dx) / 2,
                imgrc.top + (imgrc.height() - dst_dy) / 2, dst_dx, dst_dy, 0);
	} else if (!defcover.isNull()) {
		if (h)
			imgrc.bottom -= h + 16;
		// draw default cover with title at center
		imgrc = rc;
		int src_dx = defcover->GetWidth();
		int src_dy = defcover->GetHeight();
		int scale_x = imgrc.width() * 0x10000 / src_dx;
		int scale_y = imgrc.height() * 0x10000 / src_dy;
		if (scale_x < scale_y)
			scale_y = scale_x;
		else
			scale_x = scale_y;
		int dst_dx = (src_dx * scale_x) >> 16;
		int dst_dy = (src_dy * scale_y) >> 16;
		if (dst_dx > rc.width() - 10)
			dst_dx = imgrc.width();
		if (dst_dy > rc.height() - 10)
			dst_dy = imgrc.height();
		//CRLog::trace("drawCoverTo() - drawing image");
		drawBuf->Draw(defcover, imgrc.left + (imgrc.width() - dst_dx) / 2,
				imgrc.top + (imgrc.height() - dst_dy) / 2, dst_dx, dst_dy);
		//CRLog::trace("drawCoverTo() - drawing text");
		txform.Draw(drawBuf, (rc.right + rc.left - title_w) / 2, (rc.bottom
				+ rc.top - h) / 2, NULL);
		//CRLog::trace("drawCoverTo() - done");
		return;
	} else {
		imgrc.bottom = imgrc.top;
	}
	rc.top = imgrc.bottom;
	//CRLog::trace("drawCoverTo() - drawing text");
	if (h)
		txform.Draw(drawBuf, (rc.right + rc.left - title_w) / 2, (rc.bottom
				+ rc.top - h) / 2, NULL);
	//CRLog::trace("drawCoverTo() - done");
}

/// export to WOL format
bool LVDocView::exportWolFile(LVStream * stream, bool flgGray, int levels) {
	checkRender();
	int save_m_dx = m_dx;
	int save_m_dy = m_dy;
	int old_flags = m_pageHeaderInfo;
	int save_pos = _pos;
	int save_page = _pos;
	bool showCover = getShowCover();
	m_pageHeaderInfo &= ~(PGHDR_CLOCK | PGHDR_BATTERY);
	int dx = 600; // - m_pageMargins.left - m_pageMargins.right;
	int dy = 800; // - m_pageMargins.top - m_pageMargins.bottom;
	Resize(dx, dy);

	LVRendPageList &pages = m_pages;

	//Render(dx, dy, &pages);

	const lChar8 * * table = GetCharsetUnicode2ByteTable(L"windows-1251");

	//ldomXPointer bm = getBookmark();
	{
		WOLWriter wol(stream);
		lString8 authors = UnicodeTo8Bit(getAuthors(), table);
		lString8 name = UnicodeTo8Bit(getTitle(), table);
        wol.addTitle(name, cs8("-"), authors, cs8("-"), //adapter
                cs8("-"), //translator
                cs8("-"), //publisher
                cs8("-"), //2006-11-01
                cs8("-"), //This is introduction.
                cs8("") //ISBN
		);

		LVGrayDrawBuf cover(600, 800);
		lvRect coverRc(0, 0, 600, 800);
		cover.Clear(m_backgroundColor);
		drawCoverTo(&cover, coverRc);
		wol.addCoverImage(cover);

		int lastPercent = 0;
		for (int i = showCover ? 1 : 0; i < pages.length(); i
				+= getVisiblePageCount()) {
			int percent = i * 100 / pages.length();
			percent -= percent % 5;
			if (percent != lastPercent) {
				lastPercent = percent;
				if (m_callback != NULL)
					m_callback->OnExportProgress(percent);
			}
			LVGrayDrawBuf drawbuf(600, 800, flgGray ? 2 : 1); //flgGray ? 2 : 1);
			//drawbuf.SetBackgroundColor(0xFFFFFF);
			//drawbuf.SetTextColor(0x000000);
			drawbuf.Clear(m_backgroundColor);
			drawPageTo(&drawbuf, *pages[i], NULL, pages.length(), 0);
			_pos = pages[i]->start;
			_page = i;
			Draw(drawbuf, -1, _page, true);
			if (!flgGray) {
				drawbuf.ConvertToBitmap(false);
				drawbuf.Invert();
			} else {
				//drawbuf.Invert();
			}
			wol.addImage(drawbuf);
		}

		// add TOC
		ldomNode * body = m_doc->nodeFromXPath(lString16(
                "/FictionBook/body[1]"));
		lUInt16 section_id = m_doc->getElementNameIndex(L"section");

		if (body) {
			int l1n = 0;
			for (int l1 = 0; l1 < 1000; l1++) {
				ldomNode * l1section = body->findChildElement(LXML_NS_ANY,
						section_id, l1);
				if (!l1section)
					break;
				lString8 title = UnicodeTo8Bit(getSectionHeader(l1section),
						table);
				int page = getSectionPage(l1section, pages);
				if (!showCover)
					page++;
				if (!title.empty() && page >= 0) {
					wol.addTocItem(++l1n, 0, 0, page, title);
					int l2n = 0;
					if (levels < 2)
						continue;
					for (int l2 = 0; l2 < 1000; l2++) {
						ldomNode * l2section = l1section->findChildElement(
								LXML_NS_ANY, section_id, l2);
						if (!l2section)
							break;
						lString8 title = UnicodeTo8Bit(getSectionHeader(
								l2section), table);
						int page = getSectionPage(l2section, pages);
						if (!title.empty() && page >= 0) {
							wol.addTocItem(l1n, ++l2n, 0, page, title);
							int l3n = 0;
							if (levels < 3)
								continue;
							for (int l3 = 0; l3 < 1000; l3++) {
								ldomNode * l3section =
										l2section->findChildElement(
												LXML_NS_ANY, section_id, l3);
								if (!l3section)
									break;
								lString8 title = UnicodeTo8Bit(
										getSectionHeader(l3section), table);
								int page = getSectionPage(l3section, pages);
								if (!title.empty() && page >= 0) {
									wol.addTocItem(l1n, l2n, ++l3n, page, title);
								}
							}
						}
					}
				}
			}
		}
	}
	m_pageHeaderInfo = old_flags;
	_pos = save_pos;
	_page = save_page;
	bool rotated =
#if CR_INTERNAL_PAGE_ORIENTATION==1
			(GetRotateAngle()&1);
#else
			false;
#endif
	int ndx = rotated ? save_m_dy : save_m_dx;
	int ndy = rotated ? save_m_dx : save_m_dy;
	Resize(ndx, ndy);
	clearImageCache();

	return true;
}

int LVDocView::GetFullHeight() {
	LVLock lock(getMutex());
    CHECK_RENDER("getFullHeight()");
	RenderRectAccessor rd(m_doc->getRootNode());
	return (rd.getHeight() + rd.getY());
}

#define HEADER_MARGIN 4
/// calculate page header height
int LVDocView::getPageHeaderHeight() {
	if (!getPageHeaderInfo())
		return 0;
        int h = getInfoFont()->getHeight();
        int bh = m_batteryIcons.length()>0 ? m_batteryIcons[0]->GetHeight() * 11/10 + HEADER_MARGIN / 2 : 0;
        if ( bh>h )
            h = bh;
        return h + HEADER_MARGIN;
}

/// calculate page header rectangle
void LVDocView::getPageHeaderRectangle(int pageIndex, lvRect & headerRc) {
	lvRect pageRc;
	getPageRectangle(pageIndex, pageRc);
	headerRc = pageRc;
	if (pageIndex == 0 && m_showCover) {
		headerRc.bottom = 0;
	} else {
		int h = getPageHeaderHeight();
		headerRc.bottom = headerRc.top + h;
		headerRc.top += HEADER_MARGIN;
		headerRc.left += HEADER_MARGIN;
		headerRc.right -= HEADER_MARGIN;
	}
}

/// returns current time representation string
lString16 LVDocView::getTimeString() {
	time_t t = (time_t) time(0);
	tm * bt = localtime(&t);
	char str[12];
	sprintf(str, "%02d:%02d", bt->tm_hour, bt->tm_min);
	return Utf8ToUnicode(lString8(str));
}

/// draw battery state to buffer
void LVDocView::drawBatteryState(LVDrawBuf * drawbuf, const lvRect & batteryRc,
		bool /*isVertical*/) {
	if (m_battery_state == CR_BATTERY_STATE_NO_BATTERY)
		return;
	LVDrawStateSaver saver(*drawbuf);
	int textColor = drawbuf->GetBackgroundColor();
	int bgColor = drawbuf->GetTextColor();
	drawbuf->SetTextColor(bgColor);
	drawbuf->SetBackgroundColor(textColor);
	LVRefVec<LVImageSource> icons;
	bool drawPercent = m_props->getBoolDef(PROP_SHOW_BATTERY_PERCENT, true) || m_batteryIcons.size()<=2;
	if ( m_batteryIcons.size()>1 ) {
		icons.add(m_batteryIcons[0]);
		if ( drawPercent ) {
            m_batteryFont = fontMan->GetFont(m_batteryIcons[0]->GetHeight()-1, 900, false,
                    DEFAULT_FONT_FAMILY, m_statusFontFace);
            icons.add(m_batteryIcons[m_batteryIcons.length()-1]);
		} else {
			for ( int i=1; i<m_batteryIcons.length()-1; i++ )
				icons.add(m_batteryIcons[i]);
		}
	} else {
		if ( m_batteryIcons.size()==1 )
			icons.add(m_batteryIcons[0]);
	}
	LVDrawBatteryIcon(drawbuf, batteryRc, m_battery_state, m_battery_state
			== CR_BATTERY_STATE_CHARGING, icons, drawPercent ? m_batteryFont.get() : NULL);
#if 0
	if ( m_batteryIcons.length()>1 ) {
		int iconIndex = ((m_batteryIcons.length() - 1 ) * m_battery_state + (100/m_batteryIcons.length()/2) )/ 100;
		if ( iconIndex<0 )
		iconIndex = 0;
		if ( iconIndex>m_batteryIcons.length()-1 )
		iconIndex = m_batteryIcons.length()-1;
		CRLog::trace("battery icon index = %d", iconIndex);
		LVImageSourceRef icon = m_batteryIcons[iconIndex];
		drawbuf->Draw( icon, (batteryRc.left + batteryRc.right - icon->GetWidth() ) / 2,
				(batteryRc.top + batteryRc.bottom - icon->GetHeight())/2,
				icon->GetWidth(),
				icon->GetHeight() );
	} else {
		lvRect rc = batteryRc;
		if ( m_battery_state<0 )
		return;
		lUInt32 cl = 0xA0A0A0;
		lUInt32 cl2 = 0xD0D0D0;
		if ( drawbuf->GetBitsPerPixel()<=2 ) {
			cl = 1;
			cl2 = 2;
		}
#if 1

		if ( isVertical ) {
			int h = rc.height();
			h = ( (h - 4) / 4 * 4 ) + 3;
			int dh = (rc.height() - h) / 2;
			rc.bottom -= dh;
			rc.top = rc.bottom - h;
			int w = rc.width();
			int h0 = 4; //h / 6;
			int w0 = w / 3;
			// contour
			drawbuf->FillRect( rc.left, rc.top+h0, rc.left+1, rc.bottom, cl );
			drawbuf->FillRect( rc.right-1, rc.top+h0, rc.right, rc.bottom, cl );

			drawbuf->FillRect( rc.left, rc.top+h0, rc.left+w0, rc.top+h0+1, cl );
			drawbuf->FillRect( rc.right-w0, rc.top+h0, rc.right, rc.top+h0+1, cl );

			drawbuf->FillRect( rc.left+w0-1, rc.top, rc.left+w0, rc.top+h0, cl );
			drawbuf->FillRect( rc.right-w0, rc.top, rc.right-w0+1, rc.top+h0, cl );

			drawbuf->FillRect( rc.left+w0, rc.top, rc.right-w0, rc.top+1, cl );
			drawbuf->FillRect( rc.left, rc.bottom-1, rc.right, rc.bottom, cl );
			// fill
			int miny = rc.bottom - 2 - (h - 4) * m_battery_state / 100;
			for ( int i=0; i<h-4; i++ ) {
				if ( (i&3) != 3 ) {
					int y = rc.bottom - 2 - i;
					int w = 2;
					if ( y < rc.top + h0 + 2 )
					w = w0 + 1;
					lUInt32 c = cl2;
					if ( y >= miny )
					c = cl;
					drawbuf->FillRect( rc.left+w, y-1, rc.right-w, y, c );
				}
			}
		} else {
			// horizontal
			int h = rc.width();
			h = ( (h - 4) / 4 * 4 ) + 3;
			int dh = (rc.height() - h) / 2;
			rc.right -= dh;
			rc.left = rc.right - h;
			h = rc.height();
			dh = h - (rc.width() * 4/8 + 1);
			if ( dh>0 ) {
				rc.bottom -= dh/2;
				rc.top += (dh/2);
				h = rc.height();
			}
			int w = rc.width();
			int h0 = h / 3; //h / 6;
			int w0 = 4;
			// contour
			drawbuf->FillRect( rc.left+w0, rc.top, rc.right, rc.top+1, cl );
			drawbuf->FillRect( rc.left+w0, rc.bottom-1, rc.right, rc.bottom, cl );

			drawbuf->FillRect( rc.left+w0, rc.top, rc.left+w0+1, rc.top+h0, cl );
			drawbuf->FillRect( rc.left+w0, rc.bottom-h0, rc.left+w0+1, rc.bottom, cl );

			drawbuf->FillRect( rc.left, rc.top+h0-1, rc.left+w0, rc.top+h0, cl );
			drawbuf->FillRect( rc.left, rc.bottom-h0, rc.left+w0, rc.bottom-h0+1, cl );

			drawbuf->FillRect( rc.left, rc.top+h0, rc.left+1, rc.bottom-h0, cl );
			drawbuf->FillRect( rc.right-1, rc.top, rc.right, rc.bottom, cl );
			// fill
			int minx = rc.right - 2 - (w - 4) * m_battery_state / 100;
			for ( int i=0; i<w-4; i++ ) {
				if ( (i&3) != 3 ) {
					int x = rc.right - 2 - i;
					int h = 2;
					if ( x < rc.left + w0 + 2 )
					h = h0 + 1;
					lUInt32 c = cl2;
					if ( x >= minx )
					c = cl;
					drawbuf->FillRect( x-1, rc.top+h, x, rc.bottom-h, c );
				}
			}
		}
#else
		//lUInt32 cl = getTextColor();
		int h = rc.height() / 6;
		if ( h<5 )
		h = 5;
		int n = rc.height() / h;
		int dy = rc.height() % h / 2;
		if ( n<1 )
		n = 1;
		int k = m_battery_state * n / 100;
		for ( int i=0; i<n; i++ ) {
			lvRect rrc = rc;
			rrc.bottom -= h * i + dy;
			rrc.top = rrc.bottom - h + 1;
			int dx = (i<n-1) ? 0 : rc.width()/5;
			rrc.left += dx;
			rrc.right -= dx;
			if ( i<k ) {
				// full
				drawbuf->FillRect( rrc.left, rrc.top, rrc.right, rrc.bottom, cl );
			} else {
				// empty
				drawbuf->FillRect( rrc.left, rrc.top, rrc.right, rrc.top+1, cl );
				drawbuf->FillRect( rrc.left, rrc.bottom-1, rrc.right, rrc.bottom, cl );
				drawbuf->FillRect( rrc.left, rrc.top, rrc.left+1, rrc.bottom, cl );
				drawbuf->FillRect( rrc.right-1, rrc.top, rrc.right, rrc.bottom, cl );
			}
		}
#endif
	}
#endif
}

/// returns section bounds, in 1/100 of percent
LVArray<int> & LVDocView::getSectionBounds() {
	if (m_section_bounds_valid)
		return m_section_bounds;
	m_section_bounds.clear();
	m_section_bounds.add(0);
    // Get sections from FB2 books
    ldomNode * body = m_doc->nodeFromXPath(cs16("/FictionBook/body[1]"));
	lUInt16 section_id = m_doc->getElementNameIndex(L"section");
    if (body == NULL) {
        // Get sections from EPUB books
        body = m_doc->nodeFromXPath(cs16("/body[1]"));
        section_id = m_doc->getElementNameIndex(L"DocFragment");
    }
	int fh = GetFullHeight();
    int pc = getVisiblePageCount();
	if (body && fh > 0) {
		int cnt = body->getChildCount();
		for (int i = 0; i < cnt; i++) {

            ldomNode * l1section = body->getChildElementNode(i, section_id);
            if (!l1section)
				continue;

            lvRect rc;
            l1section->getAbsRect(rc);
            if (getViewMode() == DVM_SCROLL) {
                int p = (int) (((lInt64) rc.top * 10000) / fh);
                m_section_bounds.add(p);
            } else {
                int fh = m_pages.length();
                if ( (pc==2 && (fh&1)) )
                    fh++;
                int p = m_pages.FindNearestPage(rc.top, 0);
                if (fh > 1)
                    m_section_bounds.add((int) (((lInt64) p * 10000) / fh));
            }

		}
	}
	m_section_bounds.add(10000);
	m_section_bounds_valid = true;
	return m_section_bounds;
}

int LVDocView::getPosPercent() {
	LVLock lock(getMutex());
	checkPos();
	if (getViewMode() == DVM_SCROLL) {
		int fh = GetFullHeight();
		int p = GetPos();
		if (fh > 0)
			return (int) (((lInt64) p * 10000) / fh);
		else
			return 0;
	} else {
        int fh = m_pages.length();
        if ( (getVisiblePageCount()==2 && (fh&1)) )
            fh++;
        int p = getCurPage();// + 1;
//        if ( getVisiblePageCount()>1 )
//            p++;
		if (fh > 0)
			return (int) (((lInt64) p * 10000) / fh);
		else
			return 0;
	}
}

void LVDocView::getPageRectangle(int pageIndex, lvRect & pageRect) {
	if ((pageIndex & 1) == 0 || (getVisiblePageCount() < 2))
		pageRect = m_pageRects[0];
	else
		pageRect = m_pageRects[1];
}

void LVDocView::getNavigationBarRectangle(lvRect & navRect) {
	getNavigationBarRectangle(getVisiblePageCount() == 2 ? 1 : 2, navRect);
}

void LVDocView::getNavigationBarRectangle(int pageIndex, lvRect & navRect) {
	lvRect headerRect;
	getPageHeaderRectangle(pageIndex, headerRect);
	navRect = headerRect;
	if (headerRect.bottom <= headerRect.top)
		return;
	navRect.top = navRect.bottom - 6;
}

void LVDocView::drawNavigationBar(LVDrawBuf * drawbuf, int pageIndex,
		int percent) {
	//LVArray<int> & sbounds = getSectionBounds();
	lvRect navBar;
	getNavigationBarRectangle(pageIndex, navBar);
	//bool leftPage = (getVisiblePageCount()==2 && !(pageIndex&1) );

	//lUInt32 cl1 = 0xA0A0A0;
	//lUInt32 cl2 = getBackgroundColor();
}

/// sets battery state
bool LVDocView::setBatteryState(int newState) {
	if (m_battery_state == newState)
		return false;
	CRLog::info("New battery state: %d", newState);
	m_battery_state = newState;
	clearImageCache();
	return true;
}

/// set list of battery icons to display battery state
void LVDocView::setBatteryIcons(LVRefVec<LVImageSource> icons) {
	m_batteryIcons = icons;
}

lString16 fitTextWidthWithEllipsis(lString16 text, LVFontRef font, int maxwidth) {
	int w = font->getTextWidth(text.c_str(), text.length());
	if (w <= maxwidth)
		return text;
	int len;
	for (len = text.length() - 1; len > 1; len--) {
        lString16 s = text.substr(0, len) + "...";
		w = font->getTextWidth(s.c_str(), s.length());
		if (w <= maxwidth)
			return s;
	}
    return lString16::empty_str;
}

/// substitute page header with custom text (e.g. to be used while loading)
void LVDocView::setPageHeaderOverride(lString16 s) {
	m_pageHeaderOverride = s;
	clearImageCache();
}

/// draw page header to buffer
void LVDocView::drawPageHeader(LVDrawBuf * drawbuf, const lvRect & headerRc,
		int pageIndex, int phi, int pageCount) {
	lvRect oldcr;
	drawbuf->GetClipRect(&oldcr);
	lvRect hrc = headerRc;
	drawbuf->SetClipRect(&hrc);
	bool drawGauge = true;
	lvRect info = headerRc;
//    if ( m_statusColor!=0xFF000000 ) {
//        CRLog::trace("Status color = %06x, textColor=%06x", m_statusColor, getTextColor());
//    } else {
//        CRLog::trace("Status color = TRANSPARENT, textColor=%06x", getTextColor());
//    }
	lUInt32 cl1 = m_statusColor!=0xFF000000 ? m_statusColor : getTextColor();
    //lUInt32 cl2 = getBackgroundColor();
    //lUInt32 cl3 = 0xD0D0D0;
    //lUInt32 cl4 = 0xC0C0C0;
	drawbuf->SetTextColor(cl1);
	//lUInt32 pal[4];
	int percent = getPosPercent();
	bool leftPage = (getVisiblePageCount() == 2 && !(pageIndex & 1));
	if (leftPage || !drawGauge)
		percent = 10000;
        int percent_pos = /*info.left + */percent * info.width() / 10000;
	//    int gh = 3; //drawGauge ? 3 : 1;
	LVArray<int> & sbounds = getSectionBounds();
	lvRect navBar;
	getNavigationBarRectangle(pageIndex, navBar);
	int gpos = info.bottom;
//	if (drawbuf->GetBitsPerPixel() <= 2) {
//		// gray
//		cl3 = 1;
//		cl4 = cl1;
//		//pal[0] = cl1;
//	}
        if ( leftPage )
            drawbuf->FillRect(info.left, gpos - 2, info.right, gpos - 2     + 1, cl1);
        //drawbuf->FillRect(info.left+percent_pos, gpos-gh, info.right, gpos-gh+1, cl1 ); //cl3
        //      drawbuf->FillRect(info.left + percent_pos, gpos - 2, info.right, gpos - 2
        //                      + 1, cl1); // cl3

	int sbound_index = 0;
	bool enableMarks = !leftPage && (phi & PGHDR_CHAPTER_MARKS) && sbounds.length()<info.width()/5;
	for ( int x = info.left; x<info.right; x++ ) {
		int cl = -1;
		int sz = 1;
		int boundCategory = 0;
		while ( enableMarks && sbound_index<sbounds.length() ) {
			int sx = info.left + sbounds[sbound_index] * (info.width() - 1) / 10000;
			if ( sx<x ) {
				sbound_index++;
				continue;
			}
			if ( sx==x ) {
				boundCategory = 1;
			}
			break;
		}
		if ( leftPage ) {
			cl = cl1;
			sz = 1;
		} else {
            if ( x < info.left + percent_pos ) {
				sz = 3;
				if ( boundCategory==0 )
					cl = cl1;
                else
                    sz = 0;
            } else {
				if ( boundCategory!=0 )
					sz = 3;
				cl = cl1;
			}
		}
        if ( cl!=-1 && sz>0 )
			drawbuf->FillRect(x, gpos - 2 - sz/2, x+1, gpos - 2
					+ sz/2 + 1, cl);
	}

	lString16 text;
	//int iy = info.top; // + (info.height() - m_infoFont->getHeight()) * 2 / 3;
        int iy = info.top + /*m_infoFont->getHeight() +*/ (info.height() - m_infoFont->getHeight()) / 2 - HEADER_MARGIN/2;

	if (!m_pageHeaderOverride.empty()) {
		text = m_pageHeaderOverride;
	} else {

//		if (!leftPage) {
//			drawbuf->FillRect(info.left, gpos - 3, info.left + percent_pos,
//					gpos - 3 + 1, cl1);
//			drawbuf->FillRect(info.left, gpos - 1, info.left + percent_pos,
//					gpos - 1 + 1, cl1);
//		}

		// disable section marks for left page, and for too many marks
//		if (!leftPage && (phi & PGHDR_CHAPTER_MARKS) && sbounds.length()<info.width()/5 ) {
//			for (int i = 0; i < sbounds.length(); i++) {
//				int x = info.left + sbounds[i] * (info.width() - 1) / 10000;
//				lUInt32 c = x < info.left + percent_pos ? cl2 : cl1;
//				drawbuf->FillRect(x, gpos - 4, x + 1, gpos - 0 + 2, c);
//			}
//		}

		if (getVisiblePageCount() == 1 || !(pageIndex & 1)) {
			int dwIcons = 0;
			int icony = iy + m_infoFont->getHeight() / 2;
			for (int ni = 0; ni < m_headerIcons.length(); ni++) {
				LVImageSourceRef icon = m_headerIcons[ni];
				int h = icon->GetHeight();
				int w = icon->GetWidth();
				drawbuf->Draw(icon, info.left + dwIcons, icony - h / 2, w, h);
				dwIcons += w + 4;
			}
			info.left += dwIcons;
		}

		bool batteryPercentNormalFont = false; // PROP_SHOW_BATTERY_PERCENT
		if ((phi & PGHDR_BATTERY) && m_battery_state >= CR_BATTERY_STATE_CHARGING) {
			batteryPercentNormalFont = m_props->getBoolDef(PROP_SHOW_BATTERY_PERCENT, true) || m_batteryIcons.size()<=2;
			if ( !batteryPercentNormalFont ) {
				lvRect brc = info;
				brc.right -= 2;
				//brc.top += 1;
				//brc.bottom -= 2;
				int h = brc.height();
				int batteryIconWidth = 32;
				if (m_batteryIcons.length() > 0)
					batteryIconWidth = m_batteryIcons[0]->GetWidth();
				bool isVertical = (h > 30);
				//if ( isVertical )
				//    brc.left = brc.right - brc.height()/2;
				//else
				brc.left = brc.right - batteryIconWidth - 2;
				brc.bottom -= 5;
				drawBatteryState(drawbuf, brc, isVertical);
				info.right = brc.left - info.height() / 2;
			}
		}
		lString16 pageinfo;
		if (pageCount > 0) {
			if (phi & PGHDR_PAGE_NUMBER)
                pageinfo += fmt::decimal(pageIndex + 1);
            if (phi & PGHDR_PAGE_COUNT) {
                if ( !pageinfo.empty() )
                    pageinfo += " / ";
                pageinfo += fmt::decimal(pageCount);
            }
            if (phi & PGHDR_PERCENT) {
                if ( !pageinfo.empty() )
                    pageinfo += "  ";
                //pageinfo += lString16::itoa(percent/100)+L"%"; //+L"."+lString16::itoa(percent/10%10)+L"%";
                pageinfo += fmt::decimal(percent/100);
                pageinfo += ",";
                int pp = percent%100;
                if ( pp<10 )
                    pageinfo << "0";
                pageinfo << fmt::decimal(pp) << "%";
            }
            if ( batteryPercentNormalFont && m_battery_state>=0 ) {
                pageinfo << "  [" << fmt::decimal(m_battery_state) << "%]";
            }
		}
		int piw = 0;
		if (!pageinfo.empty()) {
			piw = m_infoFont->getTextWidth(pageinfo.c_str(), pageinfo.length());
			m_infoFont->DrawTextString(drawbuf, info.right - piw, iy,
					pageinfo.c_str(), pageinfo.length(), L' ', NULL, false);
			info.right -= piw + info.height() / 2;
		}
		if (phi & PGHDR_CLOCK) {
			lString16 clock = getTimeString();
			m_last_clock = clock;
			int w = m_infoFont->getTextWidth(clock.c_str(), clock.length()) + 2;
			m_infoFont->DrawTextString(drawbuf, info.right - w, iy,
					clock.c_str(), clock.length(), L' ', NULL, false);
			info.right -= w + info.height() / 2;
		}
		int authorsw = 0;
		lString16 authors;
		if (phi & PGHDR_AUTHOR)
			authors = getAuthors();
		int titlew = 0;
		lString16 title;
		if (phi & PGHDR_TITLE) {
			title = getTitle();
			if (title.empty() && authors.empty())
				title = m_doc_props->getStringDef(DOC_PROP_FILE_NAME);
			if (!title.empty())
				titlew
						= m_infoFont->getTextWidth(title.c_str(),
								title.length());
		}
		if (phi & PGHDR_AUTHOR && !authors.empty()) {
			if (!title.empty())
				authors += L'.';
			authorsw = m_infoFont->getTextWidth(authors.c_str(),
					authors.length());
		}
		int w = info.width() - 10;
		if (authorsw + titlew + 10 > w) {
			if ((pageIndex & 1))
				text = title;
			else {
				text = authors;
				if (!text.empty() && text[text.length() - 1] == '.')
					text = text.substr(0, text.length() - 1);
			}
		} else {
            text = authors + "  " + title;
		}
	}
	lvRect newcr = headerRc;
	newcr.right = info.right - 10;
	drawbuf->SetClipRect(&newcr);
	text = fitTextWidthWithEllipsis(text, m_infoFont, newcr.width());
	if (!text.empty()) {
		m_infoFont->DrawTextString(drawbuf, info.left, iy, text.c_str(),
				text.length(), L' ', NULL, false);
	}
	drawbuf->SetClipRect(&oldcr);
	//--------------
	drawbuf->SetTextColor(getTextColor());
}

void LVDocView::drawPageTo(LVDrawBuf * drawbuf, LVRendPageInfo & page,
		lvRect * pageRect, int pageCount, int basePage) {
	int start = page.start;
	int height = page.height;
	int headerHeight = getPageHeaderHeight();
	//CRLog::trace("drawPageTo(%d,%d)", start, height);
	lvRect fullRect(0, 0, drawbuf->GetWidth(), drawbuf->GetHeight());
	if (!pageRect)
		pageRect = &fullRect;
    drawbuf->setHidePartialGlyphs(getViewMode()==DVM_PAGES);
	//int offset = (pageRect->height() - m_pageMargins.top - m_pageMargins.bottom - height) / 3;
	//if (offset>16)
	//    offset = 16;
	//if (offset<0)
	//    offset = 0;
	int offset = 0;
	lvRect clip;
	clip.left = pageRect->left + m_pageMargins.left;
	clip.top = pageRect->top + m_pageMargins.top + headerHeight + offset;
	clip.bottom = pageRect->top + m_pageMargins.top + height + headerHeight
			+ offset;
	clip.right = pageRect->left + pageRect->width() - m_pageMargins.right;
	if (page.type == PAGE_TYPE_COVER)
		clip.top = pageRect->top + m_pageMargins.top;
	if ((m_pageHeaderInfo || !m_pageHeaderOverride.empty()) && page.type
			!= PAGE_TYPE_COVER) {
		int phi = m_pageHeaderInfo;
		if (getVisiblePageCount() == 2) {
			if (page.index & 1) {
				// right
				phi &= ~PGHDR_AUTHOR;
            } else {
				// left
				phi &= ~PGHDR_TITLE;
                phi &= ~PGHDR_PERCENT;
                phi &= ~PGHDR_PAGE_NUMBER;
				phi &= ~PGHDR_PAGE_COUNT;
				phi &= ~PGHDR_BATTERY;
				phi &= ~PGHDR_CLOCK;
			}
		}
		lvRect info;
		getPageHeaderRectangle(page.index, info);
		drawPageHeader(drawbuf, info, page.index - 1 + basePage, phi, pageCount
				- 1 + basePage);
		//clip.top = info.bottom;
	}
	drawbuf->SetClipRect(&clip);
	if (m_doc) {
		if (page.type == PAGE_TYPE_COVER) {
			lvRect rc = *pageRect;
			drawbuf->SetClipRect(&rc);
			//if ( m_pageMargins.bottom > m_pageMargins.top )
			//    rc.bottom -= m_pageMargins.bottom - m_pageMargins.top;
			/*
			 rc.left += m_pageMargins.left / 2;
			 rc.top += m_pageMargins.bottom / 2;
			 rc.right -= m_pageMargins.right / 2;
			 rc.bottom -= m_pageMargins.bottom / 2;
			 */
			//CRLog::trace("Entering drawCoverTo()");
			drawCoverTo(drawbuf, rc);
		} else {
			// draw main page text
            if ( m_markRanges.length() )
                CRLog::trace("Entering DrawDocument() : %d ranges", m_markRanges.length());
			//CRLog::trace("Entering DrawDocument()");
			if (page.height)
				/*
				DrawDocument(*drawbuf, m_doc->getRootNode(), pageRect->left
						+ m_pageMargins.left, clip.top, pageRect->width()
						- m_pageMargins.left - m_pageMargins.right, height, 0,
                                                -start + offset, m_dy, &m_markRanges, &m_bmkRanges);
			  */
			  //ZZ
				 //  ldomPenMarkedRangeList tmppenMarkRanges = *(m_doc->getPenSelections());
				  DrawDocument(*drawbuf, m_doc->getRootNode(), pageRect->left
						+ m_pageMargins.left, clip.top, pageRect->width()
						- m_pageMargins.left - m_pageMargins.right, height, 0,
                                                -start + offset, m_dy, &m_markRanges, &m_doc->getPenSelections(), &m_bmkRanges);
			
			//CRLog::trace("Done DrawDocument() for main text");
			// draw footnotes
#define FOOTNOTE_MARGIN 8
			int fny = clip.top + (page.height ? page.height + FOOTNOTE_MARGIN
					: FOOTNOTE_MARGIN);
			int fy = fny;
			bool footnoteDrawed = false;
			for (int fn = 0; fn < page.footnotes.length(); fn++) {
				int fstart = page.footnotes[fn].start;
				int fheight = page.footnotes[fn].height;
				clip.top = fy + offset;
				clip.left = pageRect->left + m_pageMargins.left;
				clip.right = pageRect->right - m_pageMargins.right;
				clip.bottom = fy + offset + fheight;
				drawbuf->SetClipRect(&clip);
				DrawDocument(*drawbuf, m_doc->getRootNode(), pageRect->left
						+ m_pageMargins.left, fy + offset, pageRect->width()
						- m_pageMargins.left - m_pageMargins.right, fheight, 0,
						-fstart + offset, m_dy, &m_markRanges);
				footnoteDrawed = true;
				fy += fheight;
			}
			if (footnoteDrawed) { // && page.height
				fny -= FOOTNOTE_MARGIN / 2;
				drawbuf->SetClipRect(NULL);
                lUInt32 cl = drawbuf->GetTextColor();
                cl = (cl & 0xFFFFFF) | (0x55000000);
				drawbuf->FillRect(pageRect->left + m_pageMargins.left, fny,
						pageRect->right - m_pageMargins.right, fny + 1,
                        cl);
			}
		}
	}
	drawbuf->SetClipRect(NULL);
#ifdef SHOW_PAGE_RECT
	drawbuf->FillRect(pageRect->left, pageRect->top, pageRect->left+1, pageRect->bottom, 0xAAAAAA);
	drawbuf->FillRect(pageRect->left, pageRect->top, pageRect->right, pageRect->top+1, 0xAAAAAA);
	drawbuf->FillRect(pageRect->right-1, pageRect->top, pageRect->right, pageRect->bottom, 0xAAAAAA);
	drawbuf->FillRect(pageRect->left, pageRect->bottom-1, pageRect->right, pageRect->bottom, 0xAAAAAA);
	drawbuf->FillRect(pageRect->left+m_pageMargins.left, pageRect->top+m_pageMargins.top+headerHeight, pageRect->left+1+m_pageMargins.left, pageRect->bottom-m_pageMargins.bottom, 0x555555);
	drawbuf->FillRect(pageRect->left+m_pageMargins.left, pageRect->top+m_pageMargins.top+headerHeight, pageRect->right-m_pageMargins.right, pageRect->top+1+m_pageMargins.top+headerHeight, 0x555555);
	drawbuf->FillRect(pageRect->right-1-m_pageMargins.right, pageRect->top+m_pageMargins.top+headerHeight, pageRect->right-m_pageMargins.right, pageRect->bottom-m_pageMargins.bottom, 0x555555);
	drawbuf->FillRect(pageRect->left+m_pageMargins.left, pageRect->bottom-1-m_pageMargins.bottom, pageRect->right-m_pageMargins.right, pageRect->bottom-m_pageMargins.bottom, 0x555555);
#endif

#if 0
	lString16 pagenum = lString16::itoa( page.index+1 );
	m_font->DrawTextString(drawbuf, 5, 0 , pagenum.c_str(), pagenum.length(), '?', NULL, false); //drawbuf->GetHeight()-m_font->getHeight()
#endif
}

/// returns page count
int LVDocView::getPageCount() {
	return m_pages.length();
}

//============================================================================
// Navigation code
//============================================================================

/// get position of view inside document
void LVDocView::GetPos(lvRect & rc) {
    checkPos();
	rc.left = 0;
	rc.right = GetWidth();
	if (isPageMode() && _page >= 0 && _page < m_pages.length()) {
		rc.top = m_pages[_page]->start;
		rc.bottom = rc.top + m_pages[_page]->height;
	} else {
		rc.top = _pos;
		rc.bottom = _pos + GetHeight();
	}
}

int LVDocView::getPageHeight(int pageIndex)
{
	if (isPageMode() && _page >= 0 && _page < m_pages.length()) 
		return m_pages[_page]->height;
	return 0;
}

/// get vertical position of view inside document
int LVDocView::GetPos() {
    checkPos();
    if (isPageMode() && _page >= 0 && _page < m_pages.length())
		return m_pages[_page]->start;
	return _pos;
}

int LVDocView::SetPos(int pos, bool savePos) {
	LVLock lock(getMutex());
	_posIsSet = true;
    CHECK_RENDER("setPos()")
	//if ( m_posIsSet && m_pos==pos )
	//    return;
	if (isScrollMode()) {
		if (pos > GetFullHeight() - m_dy)
			pos = GetFullHeight() - m_dy;
		if (pos < 0)
			pos = 0;
		_pos = pos;
		int page = m_pages.FindNearestPage(pos, 0);
		if (page >= 0 && page < m_pages.length())
			_page = page;
		else
			_page = -1;
	} else {
		int pc = getVisiblePageCount();
		int page = m_pages.FindNearestPage(pos, 0);
		if (pc == 2)
			page &= ~1;
		if (page < m_pages.length()) {
			_pos = m_pages[page]->start;
			_page = page;
		} else {
			_pos = 0;
			_page = 0;
		}
	}
	if (savePos)
		_posBookmark = getBookmark();
	_posIsSet = true;
	updateScroll();
	return 1;
	//Draw();
}

int LVDocView::getCurPage() {
	LVLock lock(getMutex());
	checkPos();
	if (isPageMode() && _page >= 0)
		return _page;
	return m_pages.FindNearestPage(_pos, 0);
}

bool LVDocView::goToPage(int page, bool updatePosBookmark) {
	LVLock lock(getMutex());
    CHECK_RENDER("goToPage()")
	if (!m_pages.length())
		return false;
	bool res = true;
	if (isScrollMode()) {
		if (page >= 0 && page < m_pages.length()) {
			_pos = m_pages[page]->start;
			_page = page;
		} else {
			res = false;
			_pos = 0;
			_page = 0;
		}
	} else {
		int pc = getVisiblePageCount();
		if (page >= m_pages.length()) {
			page = m_pages.length() - 1;
			res = false;
		}
		if (page < 0) {
			page = 0;
			res = false;
		}
		if (pc == 2)
			page &= ~1;
		if (page >= 0 && page < m_pages.length()) {
			_pos = m_pages[page]->start;
			_page = page;
		} else {
			_pos = 0;
			_page = 0;
			res = false;
		}
	}
    if (updatePosBookmark) {
        _posBookmark = getBookmark();
    }
	_posIsSet = true;
	updateScroll();
    if (res)
        updateBookMarksRanges();
	return res;
}

/// returns true if time changed since clock has been last drawed
bool LVDocView::isTimeChanged() {
	if ( m_pageHeaderInfo & PGHDR_CLOCK ) {
		bool res = (m_last_clock != getTimeString());
		if (res)
			clearImageCache();
		return res;
	}
	return false;
}

/// check whether resize or creation of buffer is necessary, ensure buffer is ok
static bool checkBufferSize( LVRef<LVColorDrawBuf> & buf, int dx, int dy ) {
    if ( buf.isNull() || buf->GetWidth()!=dx || buf->GetHeight()!=dy ) {
        buf.Clear();
        buf = LVRef<LVColorDrawBuf>( new LVColorDrawBuf(dx, dy, 16) );
        return false; // need redraw
    } else
        return true;
}

/// clears page background
void LVDocView::drawPageBackground( LVDrawBuf & drawbuf, int offsetX, int offsetY )
{
	//CRLog::trace("drawPageBackground() called");
	drawbuf.SetBackgroundColor(m_backgroundColor);
	if ( !m_backgroundImage.isNull() ) {
		// texture
		int dx = drawbuf.GetWidth();
		int dy = drawbuf.GetHeight();
		if ( m_backgroundTiled ) {
			//CRLog::trace("drawPageBackground() using texture %d x %d", m_backgroundImage->GetWidth(), m_backgroundImage->GetHeight());
			if ( !checkBufferSize( m_backgroundImageScaled, m_backgroundImage->GetWidth(), m_backgroundImage->GetHeight() ) ) {
				// unpack
				m_backgroundImageScaled->Draw(m_backgroundImage, 0, 0, m_backgroundImage->GetWidth(), m_backgroundImage->GetHeight(), false);
			}
			LVImageSourceRef src = LVCreateDrawBufImageSource(m_backgroundImageScaled.get(), false);
			LVImageSourceRef tile = LVCreateTileTransform( src, dx, dy, offsetX, offsetY );
			//CRLog::trace("created tile image, drawing");
			drawbuf.Draw(tile, 0, 0, dx, dy);
			//CRLog::trace("draw completed");
		} else {
			if ( getViewMode()==DVM_SCROLL ) {
				// scroll
				if ( !checkBufferSize( m_backgroundImageScaled, dx, m_backgroundImage->GetHeight() ) ) {
					// unpack
					LVImageSourceRef resized = LVCreateStretchFilledTransform(m_backgroundImage, dx, m_backgroundImage->GetHeight(),
						IMG_TRANSFORM_STRETCH,
						IMG_TRANSFORM_TILE,
						0, 0);
					m_backgroundImageScaled->Draw(resized, 0, 0, dx, m_backgroundImage->GetHeight(), false);
				}
				LVImageSourceRef src = LVCreateDrawBufImageSource(m_backgroundImageScaled.get(), false);
				LVImageSourceRef resized = LVCreateStretchFilledTransform(src, dx, dy,
					IMG_TRANSFORM_TILE,
					IMG_TRANSFORM_TILE,
					offsetX, offsetY);
				drawbuf.Draw(resized, 0, 0, dx, dy);
			} else if ( getVisiblePageCount() == 2 ) {
				// single page
				if ( !checkBufferSize( m_backgroundImageScaled, dx, dy ) ) {
					// unpack
					LVImageSourceRef resized = LVCreateStretchFilledTransform(m_backgroundImage, dx, dy,
						IMG_TRANSFORM_STRETCH,
						IMG_TRANSFORM_STRETCH,
						offsetX, offsetY);
					m_backgroundImageScaled->Draw(resized, 0, 0, dx, dy, false);

					//  m_bookRect
					// ԭͼС 1366 * 768 ߾20
					//
					double ratio = 1;
					int bookTop = 20;
					int bookLeft = 20;

					//width
					ratio = (double)dx / m_backgroundImage->GetWidth();
					bookLeft = (int)(  bookLeft * ratio+ 0.8);

					//height
					ratio = (double)dy / m_backgroundImage->GetHeight();
					bookTop = (int)(  bookTop * ratio+ 0.8);

					//m_bookRect = lvRect(bookLeft, bookTop, dx-bookLeft, dy-bookTop);

				}
				LVImageSourceRef src = LVCreateDrawBufImageSource(m_backgroundImageScaled.get(), false);
				drawbuf.Draw(src, 0, 0, dx, dy);
			} else {
				// two pages
				int halfdx = (dx + 1) / 2;
				if ( !checkBufferSize( m_backgroundImageScaled, halfdx, dy ) ) {
					// unpack
					LVImageSourceRef resized = LVCreateStretchFilledTransform(m_backgroundImage, halfdx, dy,
						IMG_TRANSFORM_STRETCH,
						IMG_TRANSFORM_STRETCH,
						offsetX, offsetY);
					m_backgroundImageScaled->Draw(resized, 0, 0, halfdx, dy, false);
				}
				LVImageSourceRef src = LVCreateDrawBufImageSource(m_backgroundImageScaled.get(), false);
				drawbuf.Draw(src, 0, 0, halfdx, dy);
				drawbuf.Draw(src, dx/2, 0, dx - halfdx, dy);
			}
		}
	} else {
		// solid color
		drawbuf.Clear(m_backgroundColor);
	}
	if (drawbuf.GetBitsPerPixel() == 32 && getVisiblePageCount() == 2) {
		int x = drawbuf.GetWidth() / 2;
		lUInt32 cl = m_backgroundColor;
		cl = ((cl & 0xFCFCFC) + 0x404040) >> 1;
		drawbuf.FillRect(x, 0, x + 1, drawbuf.GetHeight(), cl);
	}
}


/// draw to specified buffer
void LVDocView::Draw(LVDrawBuf & drawbuf, int position, int page, bool rotate) {
	LVLock lock(getMutex());
	//CRLog::trace("Draw() : calling checkPos()");
	checkPos();
	//CRLog::trace("Draw() : calling drawbuf.resize(%d, %d)", m_dx, m_dy);
	drawbuf.Resize(m_dx, m_dy);
	drawbuf.SetBackgroundColor(m_backgroundColor);
	drawbuf.SetTextColor(m_textColor);
	//CRLog::trace("Draw() : calling clear()", m_dx, m_dy);

	if (!m_is_rendered)
		return;
	if (!m_doc)
		return;
	if (m_font.isNull())
		return;
	if (isScrollMode()) {
		drawbuf.SetClipRect(NULL);
        drawPageBackground(drawbuf, 0, position);
        int cover_height = 0;
		if (m_pages.length() > 0 && m_pages[0]->type == PAGE_TYPE_COVER)
			cover_height = m_pages[0]->height;
		if (position < cover_height) {
			lvRect rc;
			drawbuf.GetClipRect(&rc);
			rc.top -= position;
			rc.bottom -= position;
			rc.top += m_pageMargins.top;
			rc.bottom -= m_pageMargins.bottom;
			rc.left += m_pageMargins.left;
			rc.right -= m_pageMargins.right;
			drawCoverTo(&drawbuf, rc);
		}
		/*
		DrawDocument(drawbuf, m_doc->getRootNode(), m_pageMargins.left, 0, m_dx
				- m_pageMargins.left - m_pageMargins.right, m_dy, 0, -position,
                m_dy, &m_markRanges, &m_bmkRanges);
		*/
		//zz
		DrawDocument(drawbuf, m_doc->getRootNode(), m_pageMargins.left, 0, m_dx
				- m_pageMargins.left - m_pageMargins.right, m_dy, 0, -position,
				m_dy, &m_markRanges, &(m_doc->getPenSelections()), &m_bmkRanges);
	} else {
		int pc = getVisiblePageCount();
		//CRLog::trace("searching for page with offset=%d", position);
		if (page == -1)
			page = m_pages.FindNearestPage(position, 0);
		//CRLog::trace("found page #%d", page);

        //drawPageBackground(drawbuf, (page * 1356) & 0xFFF, 0x1000 - (page * 1356) & 0xFFF);
        drawPageBackground(drawbuf, 0, 0);

        if (page >= 0 && page < m_pages.length())
			drawPageTo(&drawbuf, *m_pages[page], &m_pageRects[0],
					m_pages.length(), 1);
		if (pc == 2 && page >= 0 && page + 1 < m_pages.length())
			drawPageTo(&drawbuf, *m_pages[page + 1], &m_pageRects[1],
					m_pages.length(), 1);
	}
#if CR_INTERNAL_PAGE_ORIENTATION==1
	if ( rotate ) {
		//CRLog::trace("Rotate drawing buffer. Src size=(%d, %d), angle=%d, buf(%d, %d)", m_dx, m_dy, m_rotateAngle, drawbuf.GetWidth(), drawbuf.GetHeight() );
		drawbuf.Rotate( m_rotateAngle );
		//CRLog::trace("Rotate done. buf(%d, %d)", drawbuf.GetWidth(), drawbuf.GetHeight() );
	}
#endif
}

//void LVDocView::Draw()
//{
//Draw( m_drawbuf, m_pos, true );
//}

/// converts point from window to document coordinates, returns true if success
bool LVDocView::windowToDocPoint(lvPoint & pt) {
    CHECK_RENDER("windowToDocPoint()")
#if CR_INTERNAL_PAGE_ORIENTATION==1
	pt = rotatePoint( pt, true );
#endif
	if (getViewMode() == DVM_SCROLL) {
		// SCROLL mode
		pt.y += _pos;
		pt.x -= m_pageMargins.left;
		return true;
	} else {
		// PAGES mode
		int page = getCurPage();
		lvRect * rc = NULL;
		lvRect page1(m_pageRects[0]);
		int headerHeight = getPageHeaderHeight();
		page1.left += m_pageMargins.left;
		page1.top += m_pageMargins.top + headerHeight;
		page1.right -= m_pageMargins.right;
		page1.bottom -= m_pageMargins.bottom;
		lvRect page2;
		if (page1.isPointInside(pt)) {
			rc = &page1;
		} else if (getVisiblePageCount() == 2) {
			page2 = m_pageRects[1];
			page2.left += m_pageMargins.left;
			page2.top += m_pageMargins.top + headerHeight;
			page2.right -= m_pageMargins.right;
			page2.bottom -= m_pageMargins.bottom;
			if (page2.isPointInside(pt)) {
				rc = &page2;
				page++;
			}
		}
		if (rc && page >= 0 && page < m_pages.length()) {
			int page_y = m_pages[page]->start;
			pt.x -= rc->left;
			pt.y -= rc->top;
			if (pt.y < m_pages[page]->height) {
				//CRLog::debug(" point page offset( %d, %d )", pt.x, pt.y );
				pt.y += page_y;
				return true;
			}
		}
	}
	return false;
}

/// converts point from documsnt to window coordinates, returns true if success
bool LVDocView::docToWindowPoint(lvPoint & pt) {
	LVLock lock(getMutex());
    CHECK_RENDER("docToWindowPoint()")
	// TODO: implement coordinate conversion here
	if (getViewMode() == DVM_SCROLL) {
		// SCROLL mode
		pt.y -= _pos;
		pt.x += m_pageMargins.left;
		return true;
	} else {
            // PAGES mode
            int page = getCurPage();
            if (page >= 0 && page < m_pages.length() && pt.y >= m_pages[page]->start) {
                int index = -1;
                if (pt.y <= (m_pages[page]->start + m_pages[page]->height)) {
                    index = 0;
                } else if (getVisiblePageCount() == 2 && page + 1 < m_pages.length() &&
                    pt.y <= (m_pages[page + 1]->start + m_pages[page + 1]->height)) {
                    index = 1;
                }
                if (index >= 0) {
                    int x = pt.x + m_pageRects[index].left + m_pageMargins.left;
                    if (x < m_pageRects[index].right - m_pageMargins.right) {
                        pt.x = x;
                        pt.y = pt.y + getPageHeaderHeight() + m_pageMargins.top - m_pages[page + index]->start;
                        return true;
                    }
                }
            }
            return false;
	}
#if CR_INTERNAL_PAGE_ORIENTATION==1
	pt = rotatePoint( pt, false );
#endif
	return false;
}

/// returns xpointer for specified window point
ldomXPointer LVDocView::getNodeByPoint(lvPoint pt) {
	LVLock lock(getMutex());
    CHECK_RENDER("getNodeByPoint()")
	if (windowToDocPoint(pt) && m_doc) {
		ldomXPointer ptr = m_doc->createXPointer(pt);
		//CRLog::debug("  ptr (%d, %d) node=%08X offset=%d", pt.x, pt.y, (lUInt32)ptr.getNode(), ptr.getOffset() );
		return ptr;
	}
	return ldomXPointer();
}

/// returns image source for specified window point, if point is inside image
LVImageSourceRef LVDocView::getImageByPoint(lvPoint pt) {
    LVImageSourceRef res = LVImageSourceRef();
    ldomXPointer ptr = getNodeByPoint(pt);
    if (ptr.isNull())
        return res;
    //CRLog::debug("node: %s", LCSTR(ptr.toString()));
    res = ptr.getNode()->getObjectImageSource();
    if (!res.isNull())
        CRLog::debug("getImageByPoint(%d, %d) : found image %d x %d", pt.x, pt.y, res->GetWidth(), res->GetHeight());
    return res;
}

bool LVDocView::drawImage(LVDrawBuf * buf, LVImageSourceRef img, int x, int y, int dx, int dy)
{
    if (img.isNull() || !buf)
        return false;
    // clear background
    drawPageBackground(*buf, 0, 0);
    // draw image
    buf->Draw(img, x, y, dx, dy, true);
    return true;
}

void LVDocView::updateLayout() {
	lvRect rc(0, 0, m_dx, m_dy);
	m_pageRects[0] = rc;
	m_pageRects[1] = rc;
	if (getVisiblePageCount() == 2) {
		int middle = (rc.left + rc.right) >> 1;
		m_pageRects[0].right = middle - m_pageMargins.right / 2;
		m_pageRects[1].left = middle + m_pageMargins.left / 2;
	}
}

/// set list of icons to display at left side of header
void LVDocView::setHeaderIcons(LVRefVec<LVImageSource> icons) {
	m_headerIcons = icons;
}

/// get page document range, -1 for current page
LVRef<ldomXRange> LVDocView::getPageDocumentRange(int pageIndex) {
	LVLock lock(getMutex());
    CHECK_RENDER("getPageDocRange()")
	LVRef < ldomXRange > res(NULL);
	if (isScrollMode()) {
		// SCROLL mode
		int starty = _pos;
		int endy = _pos + m_dy;
		int fh = GetFullHeight();
		if (endy >= fh)
			endy = fh - 1;
		ldomXPointer start = m_doc->createXPointer(lvPoint(0, starty));
		ldomXPointer end = m_doc->createXPointer(lvPoint(0, endy));
		if (start.isNull() || end.isNull())
			return res;
		res = LVRef<ldomXRange> (new ldomXRange(start, end));
	} else {
		// PAGES mode
		if (pageIndex < 0 || pageIndex >= m_pages.length())
			pageIndex = getCurPage();
		LVRendPageInfo * page = m_pages[pageIndex];
		if (page->type != PAGE_TYPE_NORMAL)
			return res;
		ldomXPointer start = m_doc->createXPointer(lvPoint(0, page->start));
		//ldomXPointer end = m_doc->createXPointer( lvPoint( m_dx+m_dy, page->start + page->height - 1 ) );
		ldomXPointer end = m_doc->createXPointer(lvPoint(0, page->start
                                + page->height), 1);
		if (start.isNull() || end.isNull())
			return res;
		res = LVRef<ldomXRange> (new ldomXRange(start, end));
	}
	return res;
}

/// returns number of non-space characters on current page
int LVDocView::getCurrentPageCharCount()
{
    lString16 text = getPageText(true);
    int count = 0;
    for (int i=0; i<text.length(); i++) {
        lChar16 ch = text[i];
        if (ch>='0')
            count++;
    }
    return count;
}

/// returns number of images on current page
int LVDocView::getCurrentPageImageCount()
{
    CHECK_RENDER("getCurPageImgCount()")
    LVRef<ldomXRange> range = getPageDocumentRange(-1);
    class ImageCounter : public ldomNodeCallback {
        int count;
    public:
        int get() { return count; }
        ImageCounter() : count(0) { }
        /// called for each found text fragment in range
        virtual void onText(ldomXRange *) { }
        /// called for each found node in range
        virtual bool onElement(ldomXPointerEx * ptr) {
            lString16 nodeName = ptr->getNode()->getNodeName();
            if (nodeName == "img" || nodeName == "image")
                count++;
			return true;
        }

    };
    ImageCounter cnt;
    range->forEach(&cnt);
    return cnt.get();
}

/// get page text, -1 for current page
lString16 LVDocView::getPageText(bool, int pageIndex) {
	LVLock lock(getMutex());
    CHECK_RENDER("getPageText()")
	lString16 txt;
	LVRef < ldomXRange > range = getPageDocumentRange(pageIndex);
	txt = range->getRangeText();
	return txt;
}

void LVDocView::setRenderProps(int dx, int dy) {
	if (!m_doc || m_doc->getRootNode() == NULL)
		return;
	updateLayout();
	m_showCover = !getCoverPageImage().isNull();

	if (dx == 0)
		dx = m_pageRects[0].width() - m_pageMargins.left - m_pageMargins.right;
	if (dy == 0)
		dy = m_pageRects[0].height() - m_pageMargins.top - m_pageMargins.bottom
				- getPageHeaderHeight();

	lString8 fontName = lString8(DEFAULT_FONT_NAME);
	m_font = fontMan->GetFont(m_font_size, 400 + LVRendGetFontEmbolden(),
			false, DEFAULT_FONT_FAMILY, m_defaultFontFace);
	//m_font = LVCreateFontTransform( m_font, LVFONT_TRANSFORM_EMBOLDEN );
	m_infoFont = fontMan->GetFont(m_status_font_size, 400, false,
			DEFAULT_FONT_FAMILY, m_statusFontFace);
	if (!m_font || !m_infoFont)
		return;

    updateDocStyleSheet();

    m_doc->setRenderProps(dx, dy, m_showCover, m_showCover ? dy
            + m_pageMargins.bottom * 4 : 0, m_font, m_def_interline_space, m_props);
    text_highlight_options_t h;
    h.bookmarkHighlightMode = m_props->getIntDef(PROP_HIGHLIGHT_COMMENT_BOOKMARKS, highlight_mode_underline);
    h.selectionColor = (m_props->getColorDef(PROP_HIGHLIGHT_SELECTION_COLOR, 0xC0C0C0) & 0xFFFFFF);
    h.commentColor = (m_props->getColorDef(PROP_HIGHLIGHT_BOOKMARK_COLOR_COMMENT, 0xA08000) & 0xFFFFFF);
    h.correctionColor = (m_props->getColorDef(PROP_HIGHLIGHT_BOOKMARK_COLOR_CORRECTION, 0xA00000) & 0xFFFFFF);
    m_doc->setHightlightOptions(h);
}

void LVDocView::Render(int dx, int dy, LVRendPageList * pages) {
	LVLock lock(getMutex());
	{
		if (!m_doc || m_doc->getRootNode() == NULL)
			return;

		if (dx == 0)
			dx = m_pageRects[0].width() - m_pageMargins.left
					- m_pageMargins.right;
		if (dy == 0)
			dy = m_pageRects[0].height() - m_pageMargins.top
					- m_pageMargins.bottom - getPageHeaderHeight();

		setRenderProps(dx, dy);

		if (pages == NULL)
			pages = &m_pages;

		if (!m_font || !m_infoFont)
			return;

		CRLog::debug("Render(width=%d, height=%d, fontSize=%d)", dx, dy,
				m_font_size);
		//CRLog::trace("calling render() for document %08X font=%08X", (unsigned int)m_doc, (unsigned int)m_font.get() );
		m_doc->render(pages, isDocumentOpened() ? m_callback : NULL, dx, dy,
                m_showCover, m_showCover ? dy + m_pageMargins.bottom * 4 : 0,
                m_font, m_def_interline_space, m_props);

#if 0
		FILE * f = fopen("pagelist.log", "wt");
		if (f) {
			for (int i=0; i<m_pages.length(); i++)
			{
				fprintf(f, "%4d:   %7d .. %-7d [%d]\n", i, m_pages[i].start, m_pages[i].start+m_pages[i].height, m_pages[i].height);
			}
			fclose(f);
		}
#endif
		fontMan->gc();
		m_is_rendered = true;
		//CRLog::debug("Making TOC...");
		//makeToc();
		CRLog::debug("Updating selections...");
		updateSelections();
		//zz
		//updatePenSelections();
		refreshPenSelections();
		
		CRLog::debug("Render is finished");

		if (!m_swapDone) {
			int fs = m_doc_props->getIntDef(DOC_PROP_FILE_SIZE, 0);
			int mfs = m_props->getIntDef(PROP_MIN_FILE_SIZE_TO_CACHE,
					DOCUMENT_CACHING_SIZE_THRESHOLD);
			CRLog::info(
					"Check whether to swap: file size = %d, min size to cache = %d",
					fs, mfs);
			if (fs >= mfs) {
                CRTimerUtil timeout(100); // 0.1 seconds
                swapToCache(timeout);
                m_swapDone = true;
            }
		}

        updateBookMarksRanges();
	}
}

/// sets selection for whole element, clears previous selection
void LVDocView::selectElement(ldomNode * elem) {
	ldomXRangeList & sel = getDocument()->getSelections();
	sel.clear();
	sel.add(new ldomXRange(elem));
	updateSelections();
}

/// sets selection for list of words, clears previous selection
void LVDocView::selectWords(const LVArray<ldomWord> & words) {
	ldomXRangeList & sel = getDocument()->getSelections();
	sel.clear();
	sel.addWords(words);
	updateSelections();
}

/// sets selections for ranges, clears previous selections
void LVDocView::selectRanges(ldomXRangeList & ranges) {
    ldomXRangeList & sel = getDocument()->getSelections();
    if (sel.empty() && ranges.empty())
        return;
    sel.clear();
    for (int i=0; i<ranges.length(); i++) {
        ldomXRange * item = ranges[i];
        sel.add(new ldomXRange(*item));
    }
    updateSelections();
}

/// sets selection for range, clears previous selection
void LVDocView::selectRange(const ldomXRange & range) {
    // LVE:DEBUG
//    ldomXRange range2(range);
//    CRLog::trace("selectRange( %s, %s )", LCSTR(range2.getStart().toString()), LCSTR(range2.getEnd().toString()) );
	ldomXRangeList & sel = getDocument()->getSelections();
	if (sel.length() == 1) {
		if (range == *sel[0])
			return; // the same range is set
	}
	sel.clear();
	sel.add(new ldomXRange(range));
	updateSelections();
}
//zz
void LVDocView::selectPenRange( ldomPenMarkedRange & range,  std::list<int> & delIndexs, bool isFirstStroke) {
	ldomPenMarkedRangeList & sel = getDocument()->getPenSelections();
	//if (sel.length() == 1) {
	//	
	//	if (range == *sel[0])
	//		return; // the same range is set
	//}
	if (NOTES_ERASER==g_penNote_state){
		for(int i = 0; i < sel.length(); ){
			ldomPenMarkedRange tmp = *sel[i]; // *sel[i];
			if(tmp.checkIntersection(range)){
				sel.remove(i);
				delIndexs.push_back(i);
			}else{
				i++;
			}
		}
		//	return;
	}else{
		if(!isFirstStroke){
			sel.remove( sel.length() -1);
		}
		sel.add(new ldomPenMarkedRange(range));
	}
	updatePenSelections();
}

/// clears selection
void LVDocView::clearSelection() {
	ldomXRangeList & sel = getDocument()->getSelections();
	sel.clear();
	updateSelections();
}

/// selects first link on page, if any. returns selected link range, null if no links.
ldomXRange * LVDocView::selectFirstPageLink() {
	ldomXRangeList list;
	getCurrentPageLinks(list);
	if (!list.length())
		return NULL;
	//
	selectRange(*list[0]);
	//
	ldomXRangeList & sel = getDocument()->getSelections();
	updateSelections();
	return sel[0];
}

/// selects link on page, if any (delta==0 - current, 1-next, -1-previous). returns selected link range, null if no links.
ldomXRange * LVDocView::selectPageLink(int delta, bool wrapAround) {
	ldomXRangeList & sel = getDocument()->getSelections();
	ldomXRangeList list;
	getCurrentPageLinks(list);
	if (!list.length())
		return NULL;
	int currentLinkIndex = -1;
	if (sel.length() > 0) {
		ldomNode * currSel = sel[0]->getStart().getNode();
		for (int i = 0; i < list.length(); i++) {
			if (list[i]->getStart().getNode() == currSel) {
				currentLinkIndex = i;
				break;
			}
		}
	}
	bool error = false;
	if (delta == 1) {
		// next
		currentLinkIndex++;
		if (currentLinkIndex >= list.length()) {
			if (wrapAround)
				currentLinkIndex = 0;
			else
				error = true;
		}

	} else if (delta == -1) {
		// previous
		if (currentLinkIndex == -1)
			currentLinkIndex = list.length() - 1;
		else
			currentLinkIndex--;
		if (currentLinkIndex < 0) {
			if (wrapAround)
				currentLinkIndex = list.length() - 1;
			else
				error = true;
		}
	} else {
		// current
		if (currentLinkIndex < 0 || currentLinkIndex >= list.length())
			error = true;
	}
	if (error) {
		clearSelection();
		return NULL;
	}
	//
	selectRange(*list[currentLinkIndex]);
	//
	updateSelections();
	return sel[0];
}

/// selects next link on page, if any. returns selected link range, null if no links.
ldomXRange * LVDocView::selectNextPageLink(bool wrapAround) {
	return selectPageLink(+1, wrapAround);
}

/// selects previous link on page, if any. returns selected link range, null if no links.
ldomXRange * LVDocView::selectPrevPageLink(bool wrapAround) {
	return selectPageLink(-1, wrapAround);
}

/// returns selected link on page, if any. null if no links.
ldomXRange * LVDocView::getCurrentPageSelectedLink() {
	return selectPageLink(0, false);
}

/// get document rectangle for specified cursor position, returns false if not visible
bool LVDocView::getCursorDocRect(ldomXPointer ptr, lvRect & rc) {
	rc.clear();
	if (ptr.isNull())
		return false;
	if (!ptr.getRect(rc)) {
		rc.clear();
		return false;
	}
	return true;
}

/// get screen rectangle for specified cursor position, returns false if not visible
bool LVDocView::getCursorRect(ldomXPointer ptr, lvRect & rc,
		bool scrollToCursor) {
	if (!getCursorDocRect(ptr, rc))
		return false;
	for (;;) {

		lvPoint topLeft = rc.topLeft();
		lvPoint bottomRight = rc.bottomRight();
		if (docToWindowPoint(topLeft) && docToWindowPoint(bottomRight)) {
			rc.setTopLeft(topLeft);
			rc.setBottomRight(bottomRight);
			return true;
		}
		// try to scroll and convert doc->window again
		if (!scrollToCursor)
			break;
		// scroll
		goToBookmark(ptr);
		scrollToCursor = false;
	};
	rc.clear();
	return false;
}

/// follow link, returns true if navigation was successful
bool LVDocView::goLink(lString16 link, bool savePos) {
	CRLog::debug("goLink(%s)", LCSTR(link));
	ldomNode * element = NULL;
	if (link.empty()) {
		ldomXRange * node = LVDocView::getCurrentPageSelectedLink();
		if (node) {
			link = node->getHRef();
			ldomNode * p = node->getStart().getNode();
			if (p->isText())
				p = p->getParentNode();
			element = p;
		}
		if (link.empty())
			return false;
	}
	if (link[0] != '#' || link.length() <= 1) {
		lString16 filename = link;
		lString16 id;
        int p = filename.pos("#");
		if (p >= 0) {
			// split filename and anchor
			// part1.html#chapter3 =>   part1.html & chapter3
			id = filename.substr(p + 1);
			filename = filename.substr(0, p);
		}
        if (filename.pos(":") >= 0) {
			// URL with protocol like http://
			if (m_callback) {
				m_callback->OnExternalLink(link, element);
				return true;
			}
		} else {
			// otherwise assume link to another file
			CRLog::debug("Link to another file: %s   anchor=%s", UnicodeToUtf8(
					filename).c_str(), UnicodeToUtf8(id).c_str());

			lString16 baseDir = m_doc_props->getStringDef(DOC_PROP_FILE_PATH,
					".");
			LVAppendPathDelimiter(baseDir);
			lString16 fn = m_doc_props->getStringDef(DOC_PROP_FILE_NAME, "");
			CRLog::debug("Current path: %s   filename:%s", UnicodeToUtf8(
					baseDir).c_str(), UnicodeToUtf8(fn).c_str());
			baseDir = LVExtractPath(baseDir + fn);
			//lString16 newPathName = LVMakeRelativeFilename( baseDir, filename );
			lString16 newPathName = LVCombinePaths(baseDir, filename);
			lString16 dir = LVExtractPath(newPathName);
			lString16 filename = LVExtractFilename(newPathName);
			LVContainerRef container = m_container;
			lString16 arcname =
					m_doc_props->getStringDef(DOC_PROP_ARC_NAME, "");
			if (arcname.empty()) {
				container = LVOpenDirectory(dir.c_str());
				if (container.isNull())
					return false;
			} else {
				filename = newPathName;
				dir.clear();
			}
			CRLog::debug("Base dir: %s newPathName=%s",
					UnicodeToUtf8(baseDir).c_str(),
					UnicodeToUtf8(newPathName).c_str());

			LVStreamRef stream = container->OpenStream(filename.c_str(),
					LVOM_READ);
			if (stream.isNull()) {
				CRLog::error("Go to link: cannot find file %s", UnicodeToUtf8(
						filename).c_str());
				return false;
			}
			CRLog::info("Go to link: file %s is found",
					UnicodeToUtf8(filename).c_str());
			// return point
			if (savePos)
				savePosToNavigationHistory();

			// close old document
			savePosition();
			clearSelection();
			_posBookmark = ldomXPointer();
			m_is_rendered = false;
			m_swapDone = false;
			_pos = 0;
			_page = 0;
			m_section_bounds_valid = false;
			m_doc_props->setString(DOC_PROP_FILE_PATH, dir);
			m_doc_props->setString(DOC_PROP_FILE_NAME, filename);
			m_doc_props->setString(DOC_PROP_CODE_BASE, LVExtractPath(filename));
			m_doc_props->setString(DOC_PROP_FILE_SIZE, lString16::itoa(
					(int) stream->GetSize()));
			m_doc_props->setHex(DOC_PROP_FILE_CRC32, stream->crc32());
			// TODO: load document from stream properly
			if (!LoadDocument(stream)) {
                createDefaultDocument(cs16("Load error"), lString16(
                        "Cannot open file ") + filename);
				return false;
			}
			//m_filename = newPathName;
			m_stream = stream;
			m_container = container;

			//restorePosition();

			// TODO: setup properties
			// go to anchor
			if (!id.empty())
                goLink(cs16("#") + id);
			clearImageCache();
			requestRender();
			return true;
		}
		return false; // only internal links supported (started with #)
	}
	link = link.substr(1, link.length() - 1);
	lUInt16 id = m_doc->getAttrValueIndex(link.c_str());
	ldomNode * dest = m_doc->getNodeById(id);
	if (!dest)
		return false;
	savePosToNavigationHistory();
	ldomXPointer newPos(dest, 0);
	goToBookmark(newPos);
        updateBookMarksRanges();
	return true;
}

/// follow selected link, returns true if navigation was successful
bool LVDocView::goSelectedLink() {
	ldomXRange * link = getCurrentPageSelectedLink();
	if (!link)
		return false;
	lString16 href = link->getHRef();
	if (href.empty())
		return false;
	return goLink(href);
}

#define NAVIGATION_FILENAME_SEPARATOR L":"
bool splitNavigationPos(lString16 pos, lString16 & fname, lString16 & path) {
	int p = pos.pos(lString16(NAVIGATION_FILENAME_SEPARATOR));
	if (p <= 0) {
        fname = lString16::empty_str;
		path = pos;
		return false;
	}
	fname = pos.substr(0, p);
	path = pos.substr(p + 1);
	return true;
}

/// packs current file path and name
lString16 LVDocView::getNavigationPath() {
	lString16 fname = m_doc_props->getStringDef(DOC_PROP_FILE_NAME, "");
	lString16 fpath = m_doc_props->getStringDef(DOC_PROP_FILE_PATH, "");
	LVAppendPathDelimiter(fpath);
	lString16 s = fpath + fname;
	if (!m_arc.isNull())
        s = cs16("/") + s;
	return s;
}

bool LVDocView::savePosToNavigationHistory() {
	ldomXPointer bookmark = getBookmark();
	if (!bookmark.isNull()) {
		lString16 path = bookmark.toString();
		if (!path.empty()) {
			lString16 s = getNavigationPath() + NAVIGATION_FILENAME_SEPARATOR
					+ path;
			CRLog::debug("savePosToNavigationHistory(%s)",
					UnicodeToUtf8(s).c_str());
			return _navigationHistory.save(s);
		}
	}
	return false;
}

/// navigate to history path URL
bool LVDocView::navigateTo(lString16 historyPath) {
	CRLog::debug("navigateTo(%s)", LCSTR(historyPath));
	lString16 fname, path;
	if (splitNavigationPos(historyPath, fname, path)) {
		lString16 curr_fname = getNavigationPath();
		if (curr_fname != fname) {
			CRLog::debug(
					"navigateTo() : file name doesn't match: current=%s %s, new=%s %s",
					LCSTR(curr_fname), LCSTR(fname));
			if (!goLink(fname, false))
				return false;
		}
	}
	if (path.empty())
		return false;
	ldomXPointer bookmark = m_doc->createXPointer(path);
	if (bookmark.isNull())
		return false;
	goToBookmark(bookmark);
    updateBookMarksRanges();
	return true;
}

/// go back. returns true if navigation was successful
bool LVDocView::goBack() {
	if (_navigationHistory.forwardCount() == 0 && savePosToNavigationHistory())
		_navigationHistory.back();
	lString16 s = _navigationHistory.back();
	if (s.empty())
		return false;
	return navigateTo(s);
}

/// go forward. returns true if navigation was successful
bool LVDocView::goForward() {
	lString16 s = _navigationHistory.forward();
	if (s.empty())
		return false;
	return navigateTo(s);
}

/// update selection ranges
void LVDocView::updateSelections() {
    CHECK_RENDER("updateSelections()")
	clearImageCache();
	LVLock lock(getMutex());
	ldomXRangeList ranges(m_doc->getSelections(), true);
    CRLog::trace("updateSelections() : selection count = %d", m_doc->getSelections().length());
	ranges.getRanges(m_markRanges);
	if (m_markRanges.length() > 0) {
//		crtrace trace;
//		trace << "LVDocView::updateSelections() - " << "selections: "
//				<< m_doc->getSelections().length() << ", ranges: "
//				<< ranges.length() << ", marked ranges: "
//				<< m_markRanges.length() << " ";
//		for (int i = 0; i < m_markRanges.length(); i++) {
//			ldomMarkedRange * item = m_markRanges[i];
//			trace << "(" << item->start.x << "," << item->start.y << "--"
//					<< item->end.x << "," << item->end.y << " #" << item->flags
//					<< ") ";
//		}
	}
}

/// update selection ranges
void LVDocView::refreshPenSelections() {
	ldomPenMarkedRangeList  & list = m_doc->getPenSelections();
    if ( list.empty() )
        return;


    CHECK_RENDER("RefreshPenSelections()")
	clearImageCache();
	LVLock lock(getMutex());


    for ( int i=0; i<list.length(); i++ ) {
        ldomPenMarkedRange * range = list.get(i);
		range->start =  range->startPointer.toPoint();
		range->end =  range->endPointer.toPoint();
    }

}


//zz
void LVDocView::updatePenSelections() {
    CHECK_RENDER("updateSelections()")
	clearImageCache();
	//LVLock lock(getMutex());
	//ldomXRangeList ranges(m_doc->getPenSelections(), true);
    //CRLog::trace("updateSelections() : selection count = %d", m_doc->getSelections().length());
	//ranges.getPenRanges(m_penMarkRanges);

}

void LVDocView::updateBookMarksRanges()
{
    checkRender();
    LVLock lock(getMutex());
    clearImageCache();

    ldomXRangeList ranges;
    CRFileHistRecord * rec = m_highlightBookmarks ? getCurrentFileHistRecord() : NULL;
    if (rec) {
        LVPtrVector<CRBookmark> &bookmarks = rec->getBookmarks();
        for (int i = 0; i < bookmarks.length(); i++) {
            CRBookmark * bmk = bookmarks[i];
            int t = bmk->getType();
            if (t != bmkt_lastpos) {
                ldomXPointer p = m_doc->createXPointer(bmk->getStartPos());
                if (p.isNull())
                    continue;
                lvPoint pt = p.toPoint();
                if (pt.y < 0)
                    continue;
                ldomXPointer ep = (t == bmkt_pos) ? p : m_doc->createXPointer(bmk->getEndPos());
                if (ep.isNull())
                    continue;
                lvPoint ept = ep.toPoint();
                if (ept.y < 0)
                    continue;
                ldomXRange *n_range = new ldomXRange(p, ep);
                if (!n_range->isNull()) {
                    int flags = 1;
                    if (t == bmkt_pos)
                        flags = 2;
                    if (t == bmkt_comment)
                        flags = 4;
                    if (t == bmkt_correction)
                        flags = 8;
                    n_range->setFlags(flags);
                    ranges.add(n_range);
                } else
                    delete n_range;
            }
        }
    }
    ranges.getRanges(m_bmkRanges);
#if 0

    m_bookmarksPercents.clear();
    if (m_highlightBookmarks) {
        CRFileHistRecord * rec = getCurrentFileHistRecord();
        if (rec) {
            LVPtrVector < CRBookmark > &bookmarks = rec->getBookmarks();

            m_bookmarksPercents.reserve(m_pages.length());
            for (int i = 0; i < bookmarks.length(); i++) {
                CRBookmark * bmk = bookmarks[i];
                if (bmk->getType() != bmkt_comment && bmk->getType() != bmkt_correction)
                    continue;
                lString16 pos = bmk->getStartPos();
                ldomXPointer p = m_doc->createXPointer(pos);
                if (p.isNull())
                    continue;
                lvPoint pt = p.toPoint();
                if (pt.y < 0)
                    continue;
                ldomXPointer ep = m_doc->createXPointer(bmk->getEndPos());
                if (ep.isNull())
                    continue;
                lvPoint ept = ep.toPoint();
                if (ept.y < 0)
                    continue;
                insertBookmarkPercentInfo(m_pages.FindNearestPage(pt.y, 0),
                                          ept.y, bmk->getPercent());
            }
        }
    }

    ldomXRangeList ranges;
    CRFileHistRecord * rec = m_bookmarksPercents.length() ? getCurrentFileHistRecord() : NULL;
    if (!rec) {
        m_bmkRanges.clear();
        return;
    }
    int page_index = getCurPage();
    if (page_index >= 0 && page_index < m_bookmarksPercents.length()) {
        LVPtrVector < CRBookmark > &bookmarks = rec->getBookmarks();
        LVRef < ldomXRange > page = getPageDocumentRange();
        LVBookMarkPercentInfo *bmi = m_bookmarksPercents[page_index];
        for (int i = 0; bmi != NULL && i < bmi->length(); i++) {
            for (int j = 0; j < bookmarks.length(); j++) {
                CRBookmark * bmk = bookmarks[j];
                if ((bmk->getType() != bmkt_comment && bmk->getType() != bmkt_correction) ||
                    bmk->getPercent() != bmi->get(i))
                    continue;
                lString16 epos = bmk->getEndPos();
                ldomXPointer ep = m_doc->createXPointer(epos);
                if (!ep.isNull()) {
                    lString16 spos = bmk->getStartPos();
                    ldomXPointer sp = m_doc->createXPointer(spos);
                    if (!sp.isNull()) {
                        ldomXRange bmk_range(sp, ep);

                        ldomXRange *n_range = new ldomXRange(*page, bmk_range);
                        if (!n_range->isNull())
                            ranges.add(n_range);
                        else
                            delete n_range;
                    }
                }
            }
        }
    }
    ranges.getRanges(m_bmkRanges);
#endif
}

/// set view mode (pages/scroll)
void LVDocView::setViewMode(LVDocViewMode view_mode, int visiblePageCount) {
    //CRLog::trace("setViewMode(%d, %d) currMode=%d currPages=%d", (int)view_mode, visiblePageCount, m_view_mode, m_pagesVisible);
	if (m_view_mode == view_mode && (visiblePageCount == m_pagesVisible
			|| visiblePageCount < 1))
		return;
	clearImageCache();
	LVLock lock(getMutex());
	m_view_mode = view_mode;
	m_props->setInt(PROP_PAGE_VIEW_MODE, m_view_mode == DVM_PAGES ? 1 : 0);
    if (visiblePageCount == 1 || visiblePageCount == 2) {
		m_pagesVisible = visiblePageCount;
        m_props->setInt(PROP_LANDSCAPE_PAGES, m_pagesVisible);
    }
    REQUEST_RENDER("setViewMode")
    _posIsSet = false;

//	goToBookmark( _posBookmark);
//        updateBookMarksRanges();
}

/// get view mode (pages/scroll)
LVDocViewMode LVDocView::getViewMode() {
	return m_view_mode;
}

/// toggle pages/scroll view mode
void LVDocView::toggleViewMode() {
	if (m_view_mode == DVM_SCROLL)
		setViewMode( DVM_PAGES);
	else
		setViewMode( DVM_SCROLL);

}

int LVDocView::getVisiblePageCount() {
	return (m_view_mode == DVM_SCROLL || m_dx < m_font_size * MIN_EM_PER_PAGE
			|| m_dx * 5 < m_dy * 6) ? 1 : m_pagesVisible;
}

/// set window visible page count (1 or 2)
void LVDocView::setVisiblePageCount(int n) {
    //CRLog::trace("setVisiblePageCount(%d) currPages=%d", n, m_pagesVisible);
    clearImageCache();
	LVLock lock(getMutex());
    int newCount = (n == 2) ? 2 : 1;
    if (m_pagesVisible == newCount)
        return;
    m_pagesVisible = newCount;
	updateLayout();
    REQUEST_RENDER("setVisiblePageCount")
    _posIsSet = false;
}

static int findBestFit(LVArray<int> & v, int n, bool rollCyclic = false) {
	int bestsz = -1;
	int bestfit = -1;
	if (rollCyclic) {
		if (n < v[0])
			return v[v.length() - 1];
		if (n > v[v.length() - 1])
			return v[0];
	}
	for (int i = 0; i < v.length(); i++) {
		int delta = v[i] - n;
		if (delta < 0)
			delta = -delta;
		if (bestfit == -1 || bestfit > delta) {
			bestfit = delta;
			bestsz = v[i];
		}
	}
	if (bestsz < 0)
		bestsz = n;
	return bestsz;
}

//static int cr_font_sizes[] = { 24, 29, 33, 39, 44 };
static int cr_interline_spaces[] = { 100, 40, 50, 60,70, 75, 80, 85, 90, 95, 100, 130, 150, 170, 200, 250, 300, 400, 500, 600, 700 };



void LVDocView::setDefaultInterlineSpace(int percent) {
	LVLock lock(getMutex());
    REQUEST_RENDER("setDefaultInterlineSpace")
	m_def_interline_space = percent;
    _posIsSet = false;
//	goToBookmark( _posBookmark);
//        updateBookMarksRanges();
}

/// sets new status bar font size
void LVDocView::setStatusFontSize(int newSize) {
	LVLock lock(getMutex());
	int oldSize = m_status_font_size;
	m_status_font_size = newSize;
	if (oldSize != newSize) {
		propsGetCurrent()->setInt(PROP_STATUS_FONT_SIZE, m_status_font_size);
        REQUEST_RENDER("setStatusFontSize")
	}
	//goToBookmark(_posBookmark);
}

void LVDocView::setFontSize(int newSize) {
	LVLock lock(getMutex());
	int oldSize = m_font_size;
	m_font_size = findBestFit(m_font_sizes, newSize);
	if (oldSize != newSize) {
		propsGetCurrent()->setInt(PROP_FONT_SIZE, m_font_size);
        REQUEST_RENDER("setFontSize")
	}
	//goToBookmark(_posBookmark);
}

void LVDocView::setDefaultFontFace(const lString8 & newFace) {
	m_defaultFontFace = newFace;
    REQUEST_RENDER("setDefaulFontFace")
}

void LVDocView::setStatusFontFace(const lString8 & newFace) {
	m_statusFontFace = newFace;
    REQUEST_RENDER("setStatusFontFace")
}

/// sets posible base font sizes (for ZoomFont feature)
void LVDocView::setFontSizes(LVArray<int> & sizes, bool cyclic) {
	m_font_sizes = sizes;
	m_font_sizes_cyclic = cyclic;
}
void LVDocView::ZoomLineSpc(int delta) {
	int i = 1;
	int count = sizeof(cr_interline_spaces) / sizeof(int);
	for (i=1; i<count; i++)
	{
		if (m_def_interline_space==cr_interline_spaces[i])
		{
			break;
		}
	}
	
	if (1==delta)
	{
		i++;
		if (i>=count)
		{
			i = count-1;
		}
	} 
	else
	{
		i--;
		if (i<1)
		{
			i = 1;
		}
	}

	m_def_interline_space = cr_interline_spaces[i];

	setDefaultInterlineSpace(m_def_interline_space);//cr_font_sizes
}

void LVDocView::ZoomFont(int delta) {
	if (m_font.isNull())
		return;
#if 1
	int sz = m_font_size;
	for (int i = 0; i < 15; i++) {
		sz += delta;
		int nsz = findBestFit(m_font_sizes, sz, m_font_sizes_cyclic);
		if (nsz != m_font_size) {
			setFontSize(nsz);
			return;
		}
		if (sz < 12)
			break;
	}
#else
	LVFontRef nfnt;
	int sz = m_font->getHeight();
	for (int i=0; i<15; i++)
	{
		sz += delta;
		nfnt = fontMan->GetFont( sz, 400, false, DEFAULT_FONT_FAMILY, lString8(DEFAULT_FONT_NAME) );
		if ( !nfnt.isNull() && nfnt->getHeight() != m_font->getHeight() )
		{
			// found!
			//ldomXPointer bm = getBookmark();
			m_font_size = nfnt->getHeight();
			Render();
			goToBookmark(_posBookmark);
			return;
		}
		if (sz<12)
		break;
	}
#endif
}

/// sets current bookmark
void LVDocView::setBookmark(ldomXPointer bm) {
	_posBookmark = bm;
}

/// get view height
int LVDocView::GetHeight() {
#if CR_INTERNAL_PAGE_ORIENTATION==1
	return (m_rotateAngle & 1) ? m_dx : m_dy;
#else
	return m_dy;
#endif
}

/// get view width
int LVDocView::GetWidth() {
#if CR_INTERNAL_PAGE_ORIENTATION==1
	return (m_rotateAngle & 1) ? m_dy : m_dx;
#else
	return m_dx;
#endif
}

#if CR_INTERNAL_PAGE_ORIENTATION==1
/// sets rotate angle
void LVDocView::SetRotateAngle( cr_rotate_angle_t angle )
{
	if ( m_rotateAngle==angle )
	return;
	m_props->setInt( PROP_ROTATE_ANGLE, ((int)angle) & 3 );
	clearImageCache();
	LVLock lock(getMutex());
	if ( (m_rotateAngle & 1) == (angle & 1) ) {
		m_rotateAngle = angle;
		return;
	}
	m_rotateAngle = angle;
	int ndx = (angle&1) ? m_dx : m_dy;
	int ndy = (angle&1) ? m_dy : m_dx;
	Resize( ndx, ndy );
}
#endif

void LVDocView::Resize(int dx, int dy) {
	//LVCHECKPOINT("Resize");
	CRLog::trace("LVDocView:Resize(%dx%d)", dx, dy);
	if (dx < 80 || dx > 3000)
		dx = 80;
	if (dy < 80 || dy > 3000)
		dy = 80;
#if CR_INTERNAL_PAGE_ORIENTATION==1
	if ( m_rotateAngle==CR_ROTATE_ANGLE_90 || m_rotateAngle==CR_ROTATE_ANGLE_270 ) {
		CRLog::trace("Screen is rotated, swapping dimensions");
		int tmp = dx;
		dx = dy;
		dy = tmp;
	}
#endif

	if (dx == m_dx && dy == m_dy) {
		CRLog::trace("Size is not changed: %dx%d", dx, dy);
		return;
	}

	clearImageCache();
	//m_drawbuf.Resize(dx, dy);
	if (m_doc) {
		//ldomXPointer bm = getBookmark();
		if (dx != m_dx || dy != m_dy || m_view_mode != DVM_SCROLL
				|| !m_is_rendered) {
			m_dx = dx;
			m_dy = dy;
			CRLog::trace("LVDocView:Resize() :  new size: %dx%d", dx, dy);
			updateLayout();
            REQUEST_RENDER("resize")
		}
        _posIsSet = false;
//		goToBookmark( _posBookmark);
//                updateBookMarksRanges();
	}
	m_dx = dx;
	m_dy = dy;
}

#define XS_IMPLEMENT_SCHEME 1
#include "../include/fb2def.h"

#if 0
void SaveBase64Objects( ldomNode * node )
{
	if ( !node->isElement() || node->getNodeId()!=el_binary )
	return;
	lString16 name = node->getAttributeValue(attr_id);
	if ( name.empty() )
	return;
	fprintf( stderr, "opening base64 stream...\n" );
	LVStreamRef in = node->createBase64Stream();
	if ( in.isNull() )
	return;
	fprintf( stderr, "base64 stream opened: %d bytes\n", (int)in->GetSize() );
	fprintf( stderr, "opening out stream...\n" );
	LVStreamRef outstream = LVOpenFileStream( name.c_str(), LVOM_WRITE );
	if (outstream.isNull())
	return;
	//outstream->Write( "test", 4, NULL );
	fprintf( stderr, "streams opened, copying...\n" );
	/*
	 lUInt8 dbuf[128000];
	 lvsize_t bytesRead = 0;
	 if ( in->Read( dbuf, 128000, &bytesRead )==LVERR_OK )
	 {
	 fprintf(stderr, "Read %d bytes, writing...\n", (int) bytesRead );
	 //outstream->Write( "test2", 5, NULL );
	 //outstream->Write( "test3", 5, NULL );
	 outstream->Write( dbuf, 100, NULL );
	 outstream->Write( dbuf, bytesRead, NULL );
	 //outstream->Write( "test4", 5, NULL );
	 }
	 */
	LVPumpStream( outstream, in );
	fprintf(stderr, "...\n");
}
#endif

/// returns pointer to bookmark/last position containter of currently opened file
CRFileHistRecord * LVDocView::getCurrentFileHistRecord() {
	if (m_filename.empty())
		return NULL;
	//CRLog::trace("LVDocView::getCurrentFileHistRecord()");
	//CRLog::trace("get title, authors, series");
	lString16 title = getTitle();
	lString16 authors = getAuthors();
	lString16 series = getSeries();
	//CRLog::trace("get bookmark");
	ldomXPointer bmk = getBookmark();
    lString16 fn = m_filename;
#ifdef ORIGINAL_FILENAME_PATCH
    if ( !m_originalFilename.empty() )
        fn = m_originalFilename;
#endif
    //CRLog::debug("m_hist.savePosition(%s, %d)", LCSTR(fn), m_filesize);
    CRFileHistRecord * res = m_hist.savePosition(fn, m_filesize, title,
			authors, series, bmk);
	//CRLog::trace("savePosition() returned");
	return res;
}

/// save last file position
void LVDocView::savePosition() {
	getCurrentFileHistRecord();
}

/// restore last file position
void LVDocView::restorePosition() {
	//CRLog::trace("LVDocView::restorePosition()");
	if (m_filename.empty())
		return;
	LVLock lock(getMutex());
	//checkRender();
    lString16 fn = m_filename;
#ifdef ORIGINAL_FILENAME_PATCH
    if ( !m_originalFilename.empty() )
        fn = m_originalFilename;
#endif
//    CRLog::debug("m_hist.restorePosition(%s, %d)", LCSTR(fn),
//			m_filesize);
    ldomXPointer pos = m_hist.restorePosition(m_doc, fn, m_filesize);
	if (!pos.isNull()) {
		//goToBookmark( pos );
		CRLog::info("LVDocView::restorePosition() - last position is found");
		_posBookmark = pos; //getBookmark();
                updateBookMarksRanges();
		_posIsSet = false;
	} else {
		CRLog::info(
				"LVDocView::restorePosition() - last position not found for file %s, size %d",
				UnicodeToUtf8(m_filename).c_str(), (int) m_filesize);
	}
}

static void FileToArcProps(CRPropRef props) {
	lString16 s = props->getStringDef(DOC_PROP_FILE_NAME);
	if (!s.empty())
		props->setString(DOC_PROP_ARC_NAME, s);
	s = props->getStringDef(DOC_PROP_FILE_PATH);
	if (!s.empty())
		props->setString(DOC_PROP_ARC_PATH, s);
	s = props->getStringDef(DOC_PROP_FILE_SIZE);
	if (!s.empty())
		props->setString(DOC_PROP_ARC_SIZE, s);
    props->setString(DOC_PROP_FILE_NAME, lString16::empty_str);
    props->setString(DOC_PROP_FILE_PATH, lString16::empty_str);
    props->setString(DOC_PROP_FILE_SIZE, lString16::empty_str);
	props->setHex(DOC_PROP_FILE_CRC32, 0);
}

/// load document from file
bool LVDocView::LoadDocument(const lChar16 * fname) {
	if (!fname || !fname[0])
		return false;

	Clear();

    CRLog::debug("LoadDocument(%s) textMode=%s", LCSTR(lString16(fname)), getTextFormatOptions()==txt_format_pre ? "pre" : "autoformat");

	// split file path and name
	lString16 filename16(fname);

	lString16 arcPathName;
	lString16 arcItemPathName;
	bool isArchiveFile = LVSplitArcName(filename16, arcPathName,
			arcItemPathName);
	if (isArchiveFile) {
		// load from archive, using @/ separated arhive/file pathname
		CRLog::info("Loading document %s from archive %s", LCSTR(
				arcItemPathName), LCSTR(arcPathName));
		LVStreamRef stream = LVOpenFileStream(arcPathName.c_str(), LVOM_READ);
		int arcsize = 0;
		if (stream.isNull()) {
			CRLog::error("Cannot open archive file %s", LCSTR(arcPathName));
			return false;
		}
		arcsize = (int) stream->GetSize();
		m_container = LVOpenArchieve(stream);
		if (m_container.isNull()) {
			CRLog::error("Cannot read archive contents from %s", LCSTR(
					arcPathName));
			return false;
		}
		stream = m_container->OpenStream(arcItemPathName.c_str(), LVOM_READ);
		if (stream.isNull()) {
			CRLog::error("Cannot open archive file item stream %s", LCSTR(
					filename16));
			return false;
		}

		lString16 fn = LVExtractFilename(arcPathName);
		lString16 dir = LVExtractPath(arcPathName);

		m_doc_props->setString(DOC_PROP_ARC_NAME, fn);
		m_doc_props->setString(DOC_PROP_ARC_PATH, dir);
		m_doc_props->setString(DOC_PROP_ARC_SIZE, lString16::itoa(arcsize));
		m_doc_props->setString(DOC_PROP_FILE_SIZE, lString16::itoa(
				(int) stream->GetSize()));
		m_doc_props->setString(DOC_PROP_FILE_NAME, arcItemPathName);
		m_doc_props->setHex(DOC_PROP_FILE_CRC32, stream->crc32());
		// loading document
		if (LoadDocument(stream)) {
			m_filename = lString16(fname);
			m_stream.Clear();
			return true;
		}
		m_stream.Clear();
		return false;
	}

	lString16 fn = LVExtractFilename(filename16);
	lString16 dir = LVExtractPath(filename16);

	CRLog::info("Loading document %s : fn=%s, dir=%s", LCSTR(filename16),
			LCSTR(fn), LCSTR(dir));
#if 0
	int i;
	int last_slash = -1;
	lChar16 slash_char = 0;
	for ( i=0; fname[i]; i++ ) {
		if ( fname[i]=='\\' || fname[i]=='/' ) {
			last_slash = i;
			slash_char = fname[i];
		}
	}
	lString16 dir;
	if ( last_slash==-1 )
        dir = ".";
	else if ( last_slash == 0 )
        dir << slash_char;
	else
        dir = lString16( fname, last_slash );
	lString16 fn( fname + last_slash + 1 );
#endif

	m_doc_props->setString(DOC_PROP_FILE_PATH, dir);
	m_container = LVOpenDirectory(dir.c_str());
	if (m_container.isNull())
		return false;
	LVStreamRef stream = m_container->OpenStream(fn.c_str(), LVOM_READ);
	if (!stream)
		return false;
    m_doc_props->setString(DOC_PROP_FILE_NAME, fn);
	m_doc_props->setString(DOC_PROP_FILE_SIZE, lString16::itoa(
			(int) stream->GetSize()));
	m_doc_props->setHex(DOC_PROP_FILE_CRC32, stream->crc32());

	if (LoadDocument(stream)) {
		m_filename = lString16(fname);
		m_stream.Clear();

#define DUMP_OPENED_DOCUMENT_SENTENCES 0 // debug XPointer navigation
#if DUMP_OPENED_DOCUMENT_SENTENCES==1
        LVStreamRef out = LVOpenFileStream("/tmp/sentences.txt", LVOM_WRITE);
        if ( !out.isNull() ) {
            checkRender();
            {
                ldomXPointerEx ptr( m_doc->getRootNode(), m_doc->getRootNode()->getChildCount());
                *out << "FORWARD ORDER:\n\n";
                //ptr.nextVisibleText();
                ptr.prevVisibleWordEnd();
                if ( ptr.thisSentenceStart() ) {
                    while ( 1 ) {
                        ldomXPointerEx ptr2(ptr);
                        ptr2.thisSentenceEnd();
                        ldomXRange range(ptr, ptr2);
                        lString16 str = range.getRangeText();
                        *out << ">sentence: " << UnicodeToUtf8(str) << "\n";
                        if ( !ptr.nextSentenceStart() )
                            break;
                    }
                }
            }
            {
                ldomXPointerEx ptr( m_doc->getRootNode(), 1);
                *out << "\n\nBACKWARD ORDER:\n\n";
                while ( ptr.lastChild() )
                    ;// do nothing
                if ( ptr.thisSentenceStart() ) {
                    while ( 1 ) {
                        ldomXPointerEx ptr2(ptr);
                        ptr2.thisSentenceEnd();
                        ldomXRange range(ptr, ptr2);
                        lString16 str = range.getRangeText();
                        *out << "<sentence: " << UnicodeToUtf8(str) << "\n";
                        if ( !ptr.prevSentenceStart() )
                            break;
                    }
                }
            }
        }
#endif

		return true;
	}
	m_stream.Clear();
	return false;
}

void LVDocView::close() {
    if ( m_doc )
        m_doc->updateMap();
    createDefaultDocument(lString16::empty_str, lString16::empty_str);
}

void LVDocView::createDefaultDocument(lString16 title, lString16 message) {
	Clear();
	m_showCover = false;
	createEmptyDocument();

	ldomDocumentWriter writer(m_doc);

	_pos = 0;
	_page = 0;

	// make fb2 document structure
	writer.OnTagOpen(NULL, L"?xml");
	writer.OnAttribute(NULL, L"version", L"1.0");
	writer.OnAttribute(NULL, L"encoding", L"utf-8");
	writer.OnEncoding(L"utf-8", NULL);
	writer.OnTagBody();
	writer.OnTagClose(NULL, L"?xml");
	writer.OnTagOpenNoAttr(NULL, L"FictionBook");
	// DESCRIPTION
	writer.OnTagOpenNoAttr(NULL, L"description");
	writer.OnTagOpenNoAttr(NULL, L"title-info");
	writer.OnTagOpenNoAttr(NULL, L"book-title");
	writer.OnTagOpenNoAttr(NULL, L"lang");
	writer.OnText(title.c_str(), title.length(), 0);
	writer.OnTagClose(NULL, L"book-title");
	writer.OnTagOpenNoAttr(NULL, L"title-info");
	writer.OnTagClose(NULL, L"description");
	// BODY
	writer.OnTagOpenNoAttr(NULL, L"body");
	//m_callback->OnTagOpen( NULL, L"section" );
	// process text
	if (title.length()) {
		writer.OnTagOpenNoAttr(NULL, L"title");
		writer.OnTagOpenNoAttr(NULL, L"p");
		writer.OnText(title.c_str(), title.length(), 0);
		writer.OnTagClose(NULL, L"p");
		writer.OnTagClose(NULL, L"title");
	}
	writer.OnTagOpenNoAttr(NULL, L"p");
	writer.OnText(message.c_str(), message.length(), 0);
	writer.OnTagClose(NULL, L"p");
	//m_callback->OnTagClose( NULL, L"section" );
	writer.OnTagClose(NULL, L"body");
	writer.OnTagClose(NULL, L"FictionBook");

	// set stylesheet
    updateDocStyleSheet();
	//m_doc->getStyleSheet()->clear();
	//m_doc->getStyleSheet()->parse(m_stylesheet.c_str());

	m_doc_props->clear();
	m_doc->setProps(m_doc_props);

	m_doc_props->setString(DOC_PROP_TITLE, title);

    REQUEST_RENDER("resize")
}

/// load document from stream
bool LVDocView::LoadDocument(LVStreamRef stream) {


	m_swapDone = false;

	setRenderProps(0, 0); // to allow apply styles and rend method while loading

	if (m_callback) {
		m_callback->OnLoadFileStart(m_doc_props->getStringDef(
				DOC_PROP_FILE_NAME, ""));
	}
	LVLock lock(getMutex());

//    int pdbFormat = 0;
//    LVStreamRef pdbStream = LVOpenPDBStream( stream, pdbFormat );
//    if ( !pdbStream.isNull() ) {
//        CRLog::info("PDB format detected, stream size=%d", (int)pdbStream->GetSize() );
//        LVStreamRef out = LVOpenFileStream("/tmp/pdb.txt", LVOM_WRITE);
//        if ( !out.isNull() )
//            LVPumpStream(out.get(), pdbStream.get()); // DEBUG
//        stream = pdbStream;
//        //return false;
//    }

	{
		clearImageCache();
		m_filesize = stream->GetSize();
		m_stream = stream;

#if (USE_ZLIB==1)

        doc_format_t pdbFormat = doc_format_none;
        if ( DetectPDBFormat(m_stream, pdbFormat) ) {
            // PDB
            CRLog::info("PDB format detected");
            createEmptyDocument();
            m_doc->setProps( m_doc_props );
            setRenderProps( 0, 0 ); // to allow apply styles and rend method while loading
            setDocFormat( pdbFormat );
            if ( m_callback )
                m_callback->OnLoadFileFormatDetected(pdbFormat);
            updateDocStyleSheet();
            doc_format_t contentFormat = doc_format_none;
            bool res = ImportPDBDocument( m_stream, m_doc, m_callback, this, contentFormat );
            if ( !res ) {
                setDocFormat( doc_format_none );
                createDefaultDocument( cs16("ERROR: Error reading PDB format"), cs16("Cannot open document") );
                if ( m_callback ) {
                    m_callback->OnLoadFileError( cs16("Error reading PDB document") );
                }
                return false;
            } else {
                setRenderProps( 0, 0 );
                REQUEST_RENDER("loadDocument")
                if ( m_callback ) {
                    m_callback->OnLoadFileEnd( );
                    //m_doc->compact();
                    m_doc->dumpStatistics();
                }
                return true;
            }
        }


		if ( DetectEpubFormat( m_stream ) ) {
			// EPUB
			CRLog::info("EPUB format detected");
			createEmptyDocument();
            m_doc->setProps( m_doc_props );
			setRenderProps( 0, 0 ); // to allow apply styles and rend method while loading
			setDocFormat( doc_format_epub );
			if ( m_callback )
                m_callback->OnLoadFileFormatDetected(doc_format_epub);
            updateDocStyleSheet();
            bool res = ImportEpubDocument( m_stream, m_doc, m_callback, this );
			if ( !res ) {
				setDocFormat( doc_format_none );
                createDefaultDocument( cs16("ERROR: Error reading EPUB format"), cs16("Cannot open document") );
				if ( m_callback ) {
                    m_callback->OnLoadFileError( cs16("Error reading EPUB document") );
				}
				return false;
			} else {
				m_container = m_doc->getContainer();
				m_doc_props = m_doc->getProps();
				setRenderProps( 0, 0 );
                REQUEST_RENDER("loadDocument")
				if ( m_callback ) {
					m_callback->OnLoadFileEnd( );
					//m_doc->compact();
					m_doc->dumpStatistics();
				}
				m_arc = m_doc->getContainer();

#ifdef SAVE_COPY_OF_LOADED_DOCUMENT //def _DEBUG
        LVStreamRef ostream = LVOpenFileStream( "test_save_source.xml", LVOM_WRITE );
        m_doc->saveToStream( ostream, "utf-16" );
#endif

				return true;
			}
		}
#if CHM_SUPPORT_ENABLED==1
        if ( DetectCHMFormat( m_stream ) ) {
			// CHM
			CRLog::info("CHM format detected");
			createEmptyDocument();
			m_doc->setProps( m_doc_props );
			setRenderProps( 0, 0 ); // to allow apply styles and rend method while loading
			setDocFormat( doc_format_chm );
			if ( m_callback )
			m_callback->OnLoadFileFormatDetected(doc_format_chm);
            updateDocStyleSheet();
            bool res = ImportCHMDocument( m_stream, m_doc, m_callback, this );
			if ( !res ) {
				setDocFormat( doc_format_none );
                createDefaultDocument( cs16("ERROR: Error reading CHM format"), cs16("Cannot open document") );
				if ( m_callback ) {
                    m_callback->OnLoadFileError( cs16("Error reading CHM document") );
				}
				return false;
			} else {
				setRenderProps( 0, 0 );
				requestRender();
				if ( m_callback ) {
					m_callback->OnLoadFileEnd( );
					//m_doc->compact();
					m_doc->dumpStatistics();
				}
				m_arc = m_doc->getContainer();
				return true;
			}
		}
#endif

#if ENABLE_ANTIWORD==1
        if ( DetectWordFormat( m_stream ) ) {
            // DOC
            CRLog::info("Word format detected");
            createEmptyDocument();
            m_doc->setProps( m_doc_props );
            setRenderProps( 0, 0 ); // to allow apply styles and rend method while loading
            setDocFormat( doc_format_doc );
            if ( m_callback )
                m_callback->OnLoadFileFormatDetected(doc_format_doc);
            updateDocStyleSheet();
            bool res = ImportWordDocument( m_stream, m_doc, m_callback, this );
            if ( !res ) {
                setDocFormat( doc_format_none );
                createDefaultDocument( cs16("ERROR: Error reading DOC format"), cs16("Cannot open document") );
                if ( m_callback ) {
                    m_callback->OnLoadFileError( cs16("Error reading DOC document") );
                }
                return false;
            } else {
                setRenderProps( 0, 0 );
                REQUEST_RENDER("loadDocument")
                if ( m_callback ) {
                    m_callback->OnLoadFileEnd( );
                    //m_doc->compact();
                    m_doc->dumpStatistics();
                }
                m_arc = m_doc->getContainer();
                return true;
            }
        }
#endif

        m_arc = LVOpenArchieve( m_stream );
		if (!m_arc.isNull())
		{
			m_container = m_arc;
			// archieve
			FileToArcProps( m_doc_props );
			m_container = m_arc;
			m_doc_props->setInt( DOC_PROP_ARC_FILE_COUNT, m_arc->GetObjectCount() );
			bool found = false;
			int htmCount = 0;
			int fb2Count = 0;
			int rtfCount = 0;
			int txtCount = 0;
			int fbdCount = 0;
            int pmlCount = 0;
			lString16 defHtml;
			lString16 firstGood;
			for (int i=0; i<m_arc->GetObjectCount(); i++)
			{
				const LVContainerItemInfo * item = m_arc->GetObjectInfo(i);
				if (item)
				{
					if ( !item->IsContainer() )
					{
						lString16 name( item->GetName() );
						CRLog::debug("arc item[%d] : %s", i, LCSTR(name) );
						lString16 s = name;
						s.lowercase();
						bool nameIsOk = true;
                        if ( s.endsWith(".htm") || s.endsWith(".html") ) {
							lString16 nm = LVExtractFilenameWithoutExtension( s );
                            if ( nm == "index" || nm == "default" )
							defHtml = name;
							htmCount++;
                        } else if ( s.endsWith(".fb2") ) {
							fb2Count++;
                        } else if ( s.endsWith(".rtf") ) {
							rtfCount++;
                        } else if ( s.endsWith(".txt") ) {
							txtCount++;
                        } else if ( s.endsWith(".pml") ) {
                            pmlCount++;
                        } else if ( s.endsWith(".fbd") ) {
							fbdCount++;
						} else {
							nameIsOk = false;
						}
						if ( nameIsOk ) {
							if ( firstGood.empty() )
                                firstGood = name;
						}
						if ( name.length() >= 5 )
						{
							name.lowercase();
							const lChar16 * pext = name.c_str() + name.length() - 4;
                            if (!lStr_cmp(pext, ".fb2"))
                                nameIsOk = true;
                            else if (!lStr_cmp(pext, ".txt"))
                                nameIsOk = true;
                            else if (!lStr_cmp(pext, ".rtf"))
                                nameIsOk = true;
						}
						if ( !nameIsOk )
						continue;
					}
				}
			}
			lString16 fn = !defHtml.empty() ? defHtml : firstGood;
			if ( !fn.empty() ) {
				m_stream = m_arc->OpenStream( fn.c_str(), LVOM_READ );
				if ( !m_stream.isNull() ) {
					CRLog::debug("Opened archive stream %s", LCSTR(fn) );
					m_doc_props->setString(DOC_PROP_FILE_NAME, fn);
					m_doc_props->setString(DOC_PROP_CODE_BASE, LVExtractPath(fn) );
					m_doc_props->setString(DOC_PROP_FILE_SIZE, lString16::itoa((int)m_stream->GetSize()));
					m_doc_props->setHex(DOC_PROP_FILE_CRC32, m_stream->crc32());
					found = true;
				}
			}
			// opened archieve stream
			if ( !found )
			{
				Clear();
				if ( m_callback ) {
                    m_callback->OnLoadFileError( cs16("File with supported extension not fouind in archive.") );
				}
				return false;
			}

		}
		else

#endif //USE_ZLIB
		{
#if 1
			//m_stream = LVCreateBufferedStream( m_stream, FILE_STREAM_BUFFER_SIZE );
#else
			LVStreamRef stream = LVCreateBufferedStream( m_stream, FILE_STREAM_BUFFER_SIZE );
			lvsize_t sz = stream->GetSize();
			const lvsize_t bufsz = 0x1000;
			lUInt8 buf[bufsz];
			lUInt8 * fullbuf = new lUInt8 [sz];
			stream->SetPos(0);
			stream->Read(fullbuf, sz, NULL);
			lvpos_t maxpos = sz - bufsz;
			for (int i=0; i<1000; i++)
			{
				lvpos_t pos = (lvpos_t)((((lUInt64)i) * 1873456178) % maxpos);
				stream->SetPos( pos );
				lvsize_t readsz = 0;
				stream->Read( buf, bufsz, &readsz );
				if (readsz != bufsz)
				{
					//
					fprintf(stderr, "data read error!\n");
				}
				for (int j=0; j<bufsz; j++)
				{
					if (fullbuf[pos+j] != buf[j])
					{
						fprintf(stderr, "invalid data!\n");
					}
				}
			}
			delete[] fullbuf;
#endif
			LVStreamRef tcrDecoder = LVCreateTCRDecoderStream(m_stream);
			if (!tcrDecoder.isNull())
				m_stream = tcrDecoder;
		}

        // TEST FB2 Coverpage parser
    #if 0
        LVStreamRef cover = GetFB2Coverpage(m_stream);
        if (!cover.isNull()) {
            CRLog::info("cover page found: %d bytes", (int)cover->GetSize());
            LVImageSourceRef img = LVCreateStreamImageSource(cover);
            if (!img.isNull()) {
                CRLog::info("image size %d x %d", img->GetWidth(), img->GetHeight());
                LVColorDrawBuf buf(200, 200);
                CRLog::info("trying to draw");
                buf.Draw(img, 0, 0, 200, 200, true);
            }
        }
    #endif

		return ParseDocument();

	}
}

const lChar16 * getDocFormatName(doc_format_t fmt) {
	switch (fmt) {
	case doc_format_fb2:
		return L"FictionBook (FB2)";
	case doc_format_txt:
		return L"Plain text (TXT)";
	case doc_format_rtf:
		return L"Rich text (RTF)";
	case doc_format_epub:
		return L"EPUB";
	case doc_format_chm:
		return L"CHM";
	case doc_format_html:
		return L"HTML";
	case doc_format_txt_bookmark:
		return L"CR3 TXT Bookmark";
	case doc_format_doc:
		return L"DOC";
	default:
		return L"Unknown format";
	}
}

/// sets current document format
void LVDocView::setDocFormat(doc_format_t fmt) {
	m_doc_format = fmt;
	lString16 desc(getDocFormatName(fmt));
	m_doc_props->setString(DOC_PROP_FILE_FORMAT, desc);
	m_doc_props->setInt(DOC_PROP_FILE_FORMAT_ID, (int) fmt);
}

/// create document and set flags
void LVDocView::createEmptyDocument() {
	_posIsSet = false;
	m_swapDone = false;
	_posBookmark = ldomXPointer();
	//lUInt32 saveFlags = 0;

	//m_doc ? m_doc->getDocFlags() : DOC_FLAG_DEFAULTS;
	m_is_rendered = false;
	if (m_doc)
		delete m_doc;
	m_doc = new ldomDocument();
	m_cursorPos.clear();
	m_markRanges.clear();
        m_bmkRanges.clear();
	_posBookmark.clear();
	m_section_bounds.clear();
	m_section_bounds_valid = false;
	_posIsSet = false;
	m_swapDone = false;

	m_doc->setProps(m_doc_props);
	m_doc->setDocFlags(0);
	m_doc->setDocFlag(DOC_FLAG_PREFORMATTED_TEXT, m_props->getBoolDef(
			PROP_TXT_OPTION_PREFORMATTED, false));
	m_doc->setDocFlag(DOC_FLAG_ENABLE_FOOTNOTES, m_props->getBoolDef(
			PROP_FOOTNOTES, true));
	m_doc->setDocFlag(DOC_FLAG_ENABLE_INTERNAL_STYLES, m_props->getBoolDef(
			PROP_EMBEDDED_STYLES, true));
    m_doc->setDocFlag(DOC_FLAG_ENABLE_DOC_FONTS, m_props->getBoolDef(
            PROP_EMBEDDED_FONTS, true));
    m_doc->setMinSpaceCondensingPercent(m_props->getIntDef(PROP_FORMAT_MIN_SPACE_CONDENSING_PERCENT, 50));

    m_doc->setContainer(m_container);
	m_doc->setNodeTypes(fb2_elem_table);
	m_doc->setAttributeTypes(fb2_attr_table);
	m_doc->setNameSpaceTypes(fb2_ns_table);
}

/// format of document from cache is known
void LVDocView::OnCacheFileFormatDetected( doc_format_t fmt )
{
    // update document format id
    m_doc_format = fmt;
    // notify about format detection, to allow setting format-specific CSS
    if (m_callback) {
        m_callback->OnLoadFileFormatDetected(getDocFormat());
    }
    // set stylesheet
    updateDocStyleSheet();
}

void LVDocView::insertBookmarkPercentInfo(int start_page, int end_y, int percent)
{
#if 0
    for (int j = start_page; j < m_pages.length(); j++) {
        if (m_pages[j]->start > end_y)
            break;
        LVBookMarkPercentInfo *bmi = m_bookmarksPercents[j];
        if (bmi == NULL) {
            bmi = new LVBookMarkPercentInfo(1, percent);
            m_bookmarksPercents.set(j, bmi);
        } else
            bmi->add(percent);
    }
#endif
}

bool LVDocView::ParseDocument() {

	createEmptyDocument();

	if (m_stream->GetSize() > DOCUMENT_CACHING_MIN_SIZE) {
		// try loading from cache

		//lString16 fn( m_stream->GetName() );
		lString16 fn =
				m_doc_props->getStringDef(DOC_PROP_FILE_NAME, "untitled");
		fn = LVExtractFilename(fn);
		lUInt32 crc = 0;
		m_stream->crc32(crc);
		CRLog::debug("Check whether document %s crc %08x exists in cache",
				UnicodeToUtf8(fn).c_str(), crc);

		// set stylesheet
        updateDocStyleSheet();
		//m_doc->getStyleSheet()->clear();
		//m_doc->getStyleSheet()->parse(m_stylesheet.c_str());

		setRenderProps(0, 0); // to allow apply styles and rend method while loading
        if (m_doc->openFromCache(this)) {
			CRLog::info("Document is found in cache, will reuse");


			//            lString16 docstyle = m_doc->createXPointer(L"/FictionBook/stylesheet").getText();
			//            if ( !docstyle.empty() && m_doc->getDocFlag(DOC_FLAG_ENABLE_INTERNAL_STYLES) ) {
			//                //m_doc->getStyleSheet()->parse(UnicodeToUtf8(docstyle).c_str());
			//                m_doc->setStyleSheet( UnicodeToUtf8(docstyle).c_str(), false );
			//            }

			m_showCover = !getCoverPageImage().isNull();

            if ( m_callback )
                m_callback->OnLoadFileEnd( );

			return true;
		}
		CRLog::info("Cannot get document from cache, parsing...");
	}

	{
		ldomDocumentWriter writer(m_doc);
		ldomDocumentWriterFilter writerFilter(m_doc, false,
				HTML_AUTOCLOSE_TABLE);

		if (m_stream->GetSize() < 5) {
            createDefaultDocument(cs16("ERROR: Wrong document size"),
                    cs16("Cannot open document"));
			return false;
		}

		/// FB2 format
		setDocFormat( doc_format_fb2);
        LVFileFormatParser * parser = new LVXMLParser(m_stream, &writer, false, true);
		if (!parser->CheckFormat()) {
			delete parser;
			parser = NULL;
		} else {
		}

		/// RTF format
		if (parser == NULL) {
			setDocFormat( doc_format_rtf);
			parser = new LVRtfParser(m_stream, &writer);
			if (!parser->CheckFormat()) {
				delete parser;
				parser = NULL;
			}
		}

		/// HTML format
		if (parser == NULL) {
			setDocFormat( doc_format_html);
			parser = new LVHTMLParser(m_stream, &writerFilter);
			if (!parser->CheckFormat()) {
				delete parser;
				parser = NULL;
			} else {
			}
		}
		///cool reader bookmark in txt format
		if (parser == NULL) {

			//m_text_format = txt_format_pre; // DEBUG!!!
			setDocFormat( doc_format_txt_bookmark);
			parser = new LVTextBookmarkParser(m_stream, &writer);
			if (!parser->CheckFormat()) {
				delete parser;
				parser = NULL;
			}
		} else {
		}

		/// plain text format
		if (parser == NULL) {

			//m_text_format = txt_format_pre; // DEBUG!!!
			setDocFormat( doc_format_txt);
			parser = new LVTextParser(m_stream, &writer, getTextFormatOptions()
					== txt_format_pre);
			if (!parser->CheckFormat()) {
				delete parser;
				parser = NULL;
			}
		} else {
		}

		// unknown format
		if (!parser) {
			setDocFormat( doc_format_none);
            createDefaultDocument(cs16("ERROR: Unknown document format"),
                    cs16("Cannot open document"));
			if (m_callback) {
				m_callback->OnLoadFileError(
                        cs16("Unknown document format"));
			}
			return false;
		}

		if (m_callback) {
			m_callback->OnLoadFileFormatDetected(getDocFormat());
		}
        updateDocStyleSheet();
		setRenderProps(0, 0);

		// set stylesheet
		//m_doc->getStyleSheet()->clear();
		//m_doc->getStyleSheet()->parse(m_stylesheet.c_str());
		//m_doc->setStyleSheet( m_stylesheet.c_str(), true );

		// parse
		parser->setProgressCallback(m_callback);
		if (!parser->Parse()) {
			delete parser;
			if (m_callback) {
                m_callback->OnLoadFileError(cs16("Bad document format"));
			}
            createDefaultDocument(cs16("ERROR: Bad document format"),
                    cs16("Cannot open document"));
			return false;
		}
		delete parser;
		_pos = 0;
		_page = 0;

		//m_doc->compact();
		m_doc->dumpStatistics();

		if (m_doc_format == doc_format_html) {
			static lUInt16 path[] = { el_html, el_head, el_title, 0 };
			ldomNode * el = m_doc->getRootNode()->findChildElement(path);
			if (el != NULL) {
                lString16 s = el->getText(L' ', 1024);
				if (!s.empty()) {
					m_doc_props->setString(DOC_PROP_TITLE, s);
				}
			}
		}

		//        lString16 docstyle = m_doc->createXPointer(L"/FictionBook/stylesheet").getText();
		//        if ( !docstyle.empty() && m_doc->getDocFlag(DOC_FLAG_ENABLE_INTERNAL_STYLES) ) {
		//            //m_doc->getStyleSheet()->parse(UnicodeToUtf8(docstyle).c_str());
		//            m_doc->setStyleSheet( UnicodeToUtf8(docstyle).c_str(), false );
		//        }

#ifdef SAVE_COPY_OF_LOADED_DOCUMENT //def _DEBUG
		LVStreamRef ostream = LVOpenFileStream( "test_save_source.xml", LVOM_WRITE );
		m_doc->saveToStream( ostream, "utf-16" );
#endif
#if 0
		{
			LVStreamRef ostream = LVOpenFileStream( "test_save.fb2", LVOM_WRITE );
			m_doc->saveToStream( ostream, "utf-16" );
			m_doc->getRootNode()->recurseElements( SaveBase64Objects );
		}
#endif

		//m_doc->getProps()->clear();
		if (m_doc_props->getStringDef(DOC_PROP_TITLE, "").empty()) {
			m_doc_props->setString(DOC_PROP_AUTHORS, extractDocAuthors(m_doc));
			m_doc_props->setString(DOC_PROP_TITLE, extractDocTitle(m_doc));
			m_doc_props->setString(DOC_PROP_LANGUAGE, extractDocLanguage(m_doc));
            int seriesNumber = -1;
            lString16 seriesName = extractDocSeries(m_doc, &seriesNumber);
            m_doc_props->setString(DOC_PROP_SERIES_NAME, seriesName);
            m_doc_props->setString(DOC_PROP_SERIES_NUMBER, seriesNumber>0 ? lString16::itoa(seriesNumber) :lString16::empty_str);
        }
	}
	//m_doc->persist();

	m_showCover = !getCoverPageImage().isNull();

    REQUEST_RENDER("loadDocument")
	if (m_callback) {
		m_callback->OnLoadFileEnd();
	}

#if 0 // test serialization
	SerialBuf buf( 1024 );
	m_doc->serializeMaps(buf);
	if ( !buf.error() ) {
		int sz = buf.pos();
		SerialBuf buf2( buf.buf(), buf.pos() );
		ldomDocument * newdoc = new ldomDocument();
		if ( newdoc->deserializeMaps( buf2 ) ) {
			delete newdoc;
		}
	}
#endif
#if 0// test swap to disk
    lString16 cacheFile = cs16("/tmp/cr3swap.bin");
	bool res = m_doc->swapToCacheFile( cacheFile );
	if ( !res ) {
		CRLog::error( "Failed to swap to disk" );
		return false;
	}
#endif
#if 0 // test restore from swap
	delete m_doc;
	m_doc = new ldomDocument();
	res = m_doc->openFromCacheFile( cacheFile );
	m_doc->setDocFlags( saveFlags );
	m_doc->setContainer( m_container );
	if ( !res ) {
		CRLog::error( "Failed loading of swap from disk" );
		return false;
	}
	m_doc->getStyleSheet()->clear();
	m_doc->getStyleSheet()->parse(m_stylesheet.c_str());
#endif
#if 0
	{
		LVStreamRef ostream = LVOpenFileStream(L"out.xml", LVOM_WRITE );
		if ( !ostream.isNull() )
		m_doc->saveToStream( ostream, "utf-8" );
	}
#endif

	return true;
}

/// save unsaved data to cache file (if one is created), with timeout option
ContinuousOperationResult LVDocView::updateCache(CRTimerUtil & maxTime)
{
    return m_doc->updateMap(maxTime);
}

/// save unsaved data to cache file (if one is created), w/o timeout
ContinuousOperationResult LVDocView::updateCache()
{
    CRTimerUtil infinite;
    return swapToCache(infinite);
}

/// save document to cache file, with timeout option
ContinuousOperationResult LVDocView::swapToCache(CRTimerUtil & maxTime)
{
    int fs = m_doc_props->getIntDef(DOC_PROP_FILE_SIZE, 0);
    CRLog::trace("LVDocView::swapToCache(fs = %d)", fs);
    // minimum file size to swap, even if forced
    // TODO
    int mfs = 30000; //m_props->getIntDef(PROP_FORCED_MIN_FILE_SIZE_TO_CACHE, 30000); // 30K
    if (fs < mfs) {
        //CRLog::trace("LVDocView::swapToCache : file is too small for caching");
        return CR_DONE;
    }
    return m_doc->swapToCache( maxTime );
}

void LVDocView::swapToCache() {
    CRTimerUtil infinite;
    swapToCache(infinite);
    m_swapDone = true;
}

bool LVDocView::LoadDocument(const char * fname) {
	if (!fname || !fname[0])
		return false;
	return LoadDocument(LocalToUnicode(lString8(fname)).c_str());
}

/// returns XPointer to middle paragraph of current page
ldomXPointer LVDocView::getCurrentPageMiddleParagraph() {
	LVLock lock(getMutex());
	checkPos();
	ldomXPointer ptr;
	if (!m_doc)
		return ptr;

	if (getViewMode() == DVM_SCROLL) {
		// SCROLL mode
		int starty = _pos;
		int endy = _pos + m_dy;
		int fh = GetFullHeight();
		if (endy >= fh)
			endy = fh - 1;
		ptr = m_doc->createXPointer(lvPoint(0, (starty + endy) / 2));
	} else {
		// PAGES mode
		int pageIndex = getCurPage();
		if (pageIndex < 0 || pageIndex >= m_pages.length())
			pageIndex = getCurPage();
		LVRendPageInfo * page = m_pages[pageIndex];
		if (page->type == PAGE_TYPE_NORMAL)
			ptr = m_doc->createXPointer(lvPoint(0, page->start + page->height
					/ 2));
	}
	if (ptr.isNull())
		return ptr;
	ldomXPointerEx p(ptr);
	if (!p.isVisibleFinal())
		if (!p.ensureFinal())
			if (!p.prevVisibleFinal())
				if (!p.nextVisibleFinal())
					return ptr;
	return ldomXPointer(p);
}

/// returns bookmark
ldomXPointer LVDocView::getBookmark() {
	LVLock lock(getMutex());
	checkPos();
	ldomXPointer ptr;
	if (m_doc) {
		if (isPageMode()) {
			if (_page >= 0 && _page < m_pages.length())
				ptr = m_doc->createXPointer(lvPoint(0, m_pages[_page]->start));
		} else {
			ptr = m_doc->createXPointer(lvPoint(0, _pos));
		}
	}
	return ptr;
	/*
	 lUInt64 pos = m_pos;
	 if (m_view_mode==DVM_PAGES)
	 m_pos += m_dy/3;
	 lUInt64 h = GetFullHeight();
	 if (h<1)
	 h = 1;
	 return pos*1000000/h;
	 */
}

/// returns bookmark for specified page
ldomXPointer LVDocView::getPageBookmark(int page) {
	LVLock lock(getMutex());
    CHECK_RENDER("getPageBookmark()")
	if (page < 0 || page >= m_pages.length())
		return ldomXPointer();
	ldomXPointer ptr = m_doc->createXPointer(lvPoint(0, m_pages[page]->start));
	return ptr;
}

/// get bookmark position text
bool LVDocView::getBookmarkPosText(ldomXPointer bm, lString16 & titleText,
		lString16 & posText) {
	LVLock lock(getMutex());
	checkRender();
    titleText = posText = lString16::empty_str;
	if (bm.isNull())
		return false;
	ldomNode * el = bm.getNode();
	CRLog::trace("getBookmarkPosText() : getting position text");
	if (el->isText()) {
        lString16 txt = bm.getNode()->getText();
		int startPos = bm.getOffset();
		int len = txt.length() - startPos;
		if (len > 0)
			txt = txt.substr(startPos, len);
		if (startPos > 0)
            posText = "...";
        posText += txt;
		el = el->getParentNode();
	} else {
        posText = el->getText(L' ', 1024);
	}
    bool inTitle = false;
	do {
		while (el && el->getNodeId() != el_section && el->getNodeId()
				!= el_body) {
			if (el->getNodeId() == el_title || el->getNodeId() == el_subtitle)
				inTitle = true;
			el = el->getParentNode();
		}
		if (el) {
			if (inTitle) {
				posText.clear();
				if (el->getChildCount() > 1) {
					ldomNode * node = el->getChildNode(1);
                    posText = node->getText(' ', 8192);
				}
				inTitle = false;
			}
			if (el->getNodeId() == el_body && !titleText.empty())
				break;
			lString16 txt = getSectionHeader(el);
			lChar16 lastch = !txt.empty() ? txt[txt.length() - 1] : 0;
			if (!titleText.empty()) {
				if (lastch != '.' && lastch != '?' && lastch != '!')
                    txt += ".";
                txt += " ";
			}
			titleText = txt + titleText;
			el = el->getParentNode();
		}
		if (titleText.length() > 50)
			break;
	} while (el);
    limitStringSize(titleText, 70);
	limitStringSize(posText, 120);
	return true;
}

/// moves position to bookmark
void LVDocView::goToBookmark(ldomXPointer bm) {
	LVLock lock(getMutex());
    CHECK_RENDER("goToBookmark()")
	_posIsSet = false;
	_posBookmark = bm;
}

/// get page number by bookmark
int LVDocView::getBookmarkPage(ldomXPointer bm) {
	LVLock lock(getMutex());
    CHECK_RENDER("getBookmarkPage()")
	if (bm.isNull()) {
		return 0;
	} else {
		lvPoint pt = bm.toPoint();
		if (pt.y < 0)
			return 0;
		return m_pages.FindNearestPage(pt.y, 0);
	}
}

void LVDocView::updateScroll() {
	checkPos();
	if (m_view_mode == DVM_SCROLL) {
		int npos = _pos;
		int fh = GetFullHeight();
		int shift = 0;
		int npage = m_dy;
		while (fh > 16384) {
			fh >>= 1;
			npos >>= 1;
			npage >>= 1;
			shift++;
		}
		if (npage < 1)
			npage = 1;
		m_scrollinfo.pos = npos;
		m_scrollinfo.maxpos = fh - npage;
		m_scrollinfo.pagesize = npage;
		m_scrollinfo.scale = shift;
		char str[32];
		sprintf(str, "%d%%", (int) (fh > 0 ? (100 * npos / fh) : 0));
		m_scrollinfo.posText = lString16(str);
	} else {
		int page = getCurPage();
		int vpc = getVisiblePageCount();
		m_scrollinfo.pos = page / vpc;
		m_scrollinfo.maxpos = (m_pages.length() + vpc - 1) / vpc - 1;
		m_scrollinfo.pagesize = 1;
		m_scrollinfo.scale = 0;
		char str[32] = { 0 };
		if (m_pages.length() > 1) {
			if (page <= 0) {
				sprintf(str, "cover");
			} else
				sprintf(str, "%d / %d", page, m_pages.length() - 1);
		}
		m_scrollinfo.posText = lString16(str);
	}
}

/// move to position specified by scrollbar
bool LVDocView::goToScrollPos(int pos) {
	if (m_view_mode == DVM_SCROLL) {
		SetPos(scrollPosToDocPos(pos));
		return true;
	} else {
		int vpc = this->getVisiblePageCount();
		int curPage = getCurPage();
		pos = pos * vpc;
		if (pos >= getPageCount())
			pos = getPageCount() - 1;
		if (pos < 0)
			pos = 0;
		if (curPage == pos)
			return false;
		goToPage(pos);
		return true;
	}
}

/// converts scrollbar pos to doc pos
int LVDocView::scrollPosToDocPos(int scrollpos) {
	if (m_view_mode == DVM_SCROLL) {
		int n = scrollpos << m_scrollinfo.scale;
		if (n < 0)
			n = 0;
		int fh = GetFullHeight();
		if (n > fh)
			n = fh;
		return n;
	} else {
		int vpc = getVisiblePageCount();
		int n = scrollpos * vpc;
		if (!m_pages.length())
			return 0;
		if (n >= m_pages.length())
			n = m_pages.length() - 1;
		if (n < 0)
			n = 0;
		return m_pages[n]->start;
	}
}

/// get list of links
void LVDocView::getCurrentPageLinks(ldomXRangeList & list) {
	list.clear();
	/// get page document range, -1 for current page
	LVRef < ldomXRange > page = getPageDocumentRange();
	if (!page.isNull()) {
		// search for links
		class LinkKeeper: public ldomNodeCallback {
			ldomXRangeList &_list;
		public:
			LinkKeeper(ldomXRangeList & list) :
				_list(list) {
			}
			/// called for each found text fragment in range
			virtual void onText(ldomXRange *) {
			}
			/// called for each found node in range
			virtual bool onElement(ldomXPointerEx * ptr) {
				//
				ldomNode * elem = ptr->getNode();
				if (elem->getNodeId() == el_a) {
					for (int i = 0; i < _list.length(); i++) {
						if (_list[i]->getStart().getNode() == elem)
							return true; // don't add, duplicate found!
					}
                                        _list.add(new ldomXRange(elem->getChildNode(0)));
				}
				return true;
			}
		};
		LinkKeeper callback(list);
		page->forEach(&callback);
		if (m_view_mode == DVM_PAGES && getVisiblePageCount() > 1) {
			// process second page
			int pageNumber = getCurPage();
			page = getPageDocumentRange(pageNumber + 1);
			if (!page.isNull())
				page->forEach(&callback);
		}
	}
}

/// returns document offset for next page
int LVDocView::getNextPageOffset() {
	LVLock lock(getMutex());
	checkPos();
	if (isScrollMode()) {
		return GetPos() + m_dy;
	} else {
		int p = getCurPage() + getVisiblePageCount();
		if (p < m_pages.length())
			return m_pages[p]->start;
		if (!p || m_pages.length() == 0)
			return 0;
		return m_pages[m_pages.length() - 1]->start;
	}
}

/// returns document offset for previous page
int LVDocView::getPrevPageOffset() {
	LVLock lock(getMutex());
	checkPos();
	if (m_view_mode == DVM_SCROLL) {
		return GetPos() - m_dy;
	} else {
		int p = getCurPage();
		p -= getVisiblePageCount();
		if (p < 0)
			p = 0;
		if (p >= m_pages.length())
			return 0;
		return m_pages[p]->start;
	}
}

static void addItem(LVPtrVector<LVTocItem, false> & items, LVTocItem * item) {
	if (item->getLevel() > 0)
		items.add(item);
	for (int i = 0; i < item->getChildCount(); i++) {
		addItem(items, item->getChild(i));
	}
}

/// returns pointer to TOC root node
bool LVDocView::getFlatToc(LVPtrVector<LVTocItem, false> & items) {
	items.clear();
	addItem(items, getToc());
	return items.length() > 0;
}

/// -1 moveto previous page, 1 to next page
bool LVDocView::moveByPage(int delta) {
	if (m_view_mode == DVM_SCROLL) {
		int p = GetPos();
		SetPos(p + m_dy * delta);
		return GetPos() != p;
	} else {
		int cp = getCurPage();
		int p = cp + delta * getVisiblePageCount();
		goToPage(p);
		return getCurPage() != cp;
	}
}

/// -1 moveto previous chapter, 0 to current chaoter first pae, 1 to next chapter
bool LVDocView::moveByChapter(int delta) {
	/// returns pointer to TOC root node
	LVPtrVector < LVTocItem, false > items;
	if (!getFlatToc(items))
		return false;
	int cp = getCurPage();
	int prevPage = -1;
	int nextPage = -1;
    int vcp = getVisiblePageCount();
    if (vcp < 1 || vcp > 2)
        vcp = 1;
	for (int i = 0; i < items.length(); i++) {
		LVTocItem * item = items[i];
		int p = item->getPage();
		if (p < cp && (prevPage == -1 || prevPage < p))
			prevPage = p;
        if (p >= cp + vcp && (nextPage == -1 || nextPage > p))
			nextPage = p;
	}
	if (prevPage < 0)
		prevPage = 0;
	if (nextPage < 0)
		nextPage = getPageCount() - 1;
	int page = delta < 0 ? prevPage : nextPage;
	if (getCurPage() != page) {
		savePosToNavigationHistory();
        goToPage(page);
	}
	return true;
}

/// saves new bookmark
CRBookmark * LVDocView::saveRangeBookmark(ldomXRange & range, bmk_type type,
		lString16 comment) {
	if (range.isNull())
		return NULL;
	if (range.getStart().isNull())
		return NULL;
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return NULL;
	CRBookmark * bmk = new CRBookmark();
	bmk->setType(type);
	bmk->setStartPos(range.getStart().toString());
	if (!range.getEnd().isNull())
		bmk->setEndPos(range.getEnd().toString());
	int p = range.getStart().toPoint().y;
	int fh = m_doc->getFullHeight();
	int percent = fh > 0 ? (int) (p * (lInt64) 10000 / fh) : 0;
	if (percent < 0)
		percent = 0;
	if (percent > 10000)
		percent = 10000;
	bmk->setPercent(percent);
	lString16 postext = range.getRangeText();
	bmk->setPosText(postext);
	bmk->setCommentText(comment);
	bmk->setTitleText(CRBookmark::getChapterName(range.getStart()));
	rec->getBookmarks().add(bmk);
        updateBookMarksRanges();
#if 0
        if (m_highlightBookmarks && !range.getEnd().isNull())
            insertBookmarkPercentInfo(m_pages.FindNearestPage(p, 0),
                                  range.getEnd().toPoint().y, percent);
#endif
	return bmk;
}

/// sets new list of bookmarks, removes old values
void LVDocView::setBookmarkList(LVPtrVector<CRBookmark> & bookmarks)
{
    CRFileHistRecord * rec = getCurrentFileHistRecord();
    if (!rec)
        return;
    LVPtrVector<CRBookmark>  & v = rec->getBookmarks();
    v.clear();
    for (int i=0; i<bookmarks.length(); i++) {
        v.add(new CRBookmark(*bookmarks[i]));
    }
    updateBookMarksRanges();
}

/// removes bookmark from list, and deletes it, false if not found
bool LVDocView::removeBookmark(CRBookmark * bm) {
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return false;
	bm = rec->getBookmarks().remove(bm);
	if (bm) {
        updateBookMarksRanges();
        delete bm;
		return true;
#if 0
            if (m_highlightBookmarks && bm->getType() == bmkt_comment || bm->getType() == bmkt_correction) {
                int by = m_doc->createXPointer(bm->getStartPos()).toPoint().y;
                int page_index = m_pages.FindNearestPage(by, 0);
                bool updateRanges = false;

                if (page_index > 0 && page_index < m_bookmarksPercents.length()) {
                    LVBookMarkPercentInfo *bmi = m_bookmarksPercents[page_index];
                    int percent = bm->getPercent();

                    for (int i = 0; bmi != NULL && i < bmi->length(); i++) {
                        if ((updateRanges = bmi->get(i) == percent))
                            bmi->remove(i);
                    }
                }
                if (updateRanges)
                    updateBookMarksRanges();
            }
            delete bm;
            return true;
#endif
	} else {
		return false;
	}
}

#define MAX_EXPORT_BOOKMARKS_SIZE 200000
/// export bookmarks to text file
bool LVDocView::exportBookmarks(lString16 filename) {
	if (m_filename.empty())
		return true; // no document opened
	lChar16 lastChar = filename.lastChar();
	lString16 dir;
	CRLog::trace("exportBookmarks(%s)", UnicodeToUtf8(filename).c_str());
	if (lastChar == '/' || lastChar == '\\') {
		dir = filename;
		CRLog::debug("Creating directory, if not exist %s",
				UnicodeToUtf8(dir).c_str());
		LVCreateDirectory(dir);
		filename.clear();
	}
	if (filename.empty()) {
		CRPropRef props = getDocProps();
		lString16 arcname = props->getStringDef(DOC_PROP_ARC_NAME);
		lString16 arcpath = props->getStringDef(DOC_PROP_ARC_PATH);
		int arcFileCount = props->getIntDef(DOC_PROP_ARC_FILE_COUNT, 0);
		if (!arcpath.empty())
			LVAppendPathDelimiter(arcpath);
		lString16 fname = props->getStringDef(DOC_PROP_FILE_NAME);
		lString16 fpath = props->getStringDef(DOC_PROP_FILE_PATH);
		if (!fpath.empty())
			LVAppendPathDelimiter(fpath);
		if (!arcname.empty()) {
			if (dir.empty())
				dir = arcpath;
			if (arcFileCount > 1)
                filename = arcname + "." + fname + ".bmk.txt";
			else
                filename = arcname + ".bmk.txt";
		} else {
			if (dir.empty())
				dir = fpath;
            filename = fname + ".bmk.txt";
		}
		LVAppendPathDelimiter(dir);
		filename = dir + filename;
	}
	CRLog::debug("Exported bookmark filename: %s",
			UnicodeToUtf8(filename).c_str());
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return false;
	// check old content
	lString8 oldContent;
	{
		LVStreamRef is = LVOpenFileStream(filename.c_str(), LVOM_READ);
		if (!is.isNull()) {
			int sz = (int) is->GetSize();
			if (sz > 0 && sz < MAX_EXPORT_BOOKMARKS_SIZE) {
				oldContent.append(sz, ' ');
				lvsize_t bytesRead = 0;
				if (is->Read(oldContent.modify(), sz, &bytesRead) != LVERR_OK
						|| (int) bytesRead != sz)
					oldContent.clear();
			}
		}
	}
	lString8 newContent;
	LVPtrVector < CRBookmark > &bookmarks = rec->getBookmarks();
	for (int i = 0; i < bookmarks.length(); i++) {
		CRBookmark * bmk = bookmarks[i];
		if (bmk->getType() != bmkt_comment && bmk->getType() != bmkt_correction)
			continue;
		if (newContent.empty()) {
			newContent.append(1, (lChar8)0xef);
			newContent.append(1, (lChar8)0xbb);
			newContent.append(1, (lChar8)0xbf);
			newContent << "# Cool Reader 3 - exported bookmarks\r\n";
			newContent << "# file name: " << UnicodeToUtf8(rec->getFileName())
					<< "\r\n";
			if (!rec->getFilePathName().empty())
				newContent << "# file path: " << UnicodeToUtf8(
						rec->getFilePath()) << "\r\n";
			newContent << "# book title: " << UnicodeToUtf8(rec->getTitle())
					<< "\r\n";
			newContent << "# author: " << UnicodeToUtf8(rec->getAuthor())
					<< "\r\n";
			if (!rec->getSeries().empty())
				newContent << "# series: " << UnicodeToUtf8(rec->getSeries())
						<< "\r\n";
			newContent << "\r\n";
		}
		char pos[16];
		int percent = bmk->getPercent();
		lString16 title = bmk->getTitleText();
		sprintf(pos, "%d.%02d%%", percent / 100, percent % 100);
		newContent << "## " << pos << " - "
				<< (bmk->getType() == bmkt_comment ? "comment" : "correction")
				<< "\r\n";
		if (!title.empty())
			newContent << "## " << UnicodeToUtf8(title) << "\r\n";
		if (!bmk->getPosText().empty())
			newContent << "<< " << UnicodeToUtf8(bmk->getPosText()) << "\r\n";
		if (!bmk->getCommentText().empty())
			newContent << ">> " << UnicodeToUtf8(bmk->getCommentText())
					<< "\r\n";
		newContent << "\r\n";
	}

	if (newContent == oldContent)
            return true;

        if (newContent.length() > 0) {
            LVStreamRef os = LVOpenFileStream(filename.c_str(), LVOM_WRITE);
            if (os.isNull())
                    return false;
            lvsize_t bytesWritten = 0;

            if (os->Write(newContent.c_str(), newContent.length(), &bytesWritten) != LVERR_OK ||
                bytesWritten != (lUInt32)newContent.length())
                return false;
        } else {
            LVDeleteFile(filename);
            return false;
        }
	return true;
}

/// saves current page bookmark under numbered shortcut
CRBookmark * LVDocView::saveCurrentPageShortcutBookmark(int number) {
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return NULL;
	ldomXPointer p = getBookmark();
	if (p.isNull())
		return NULL;
	if (number == 0)
		number = rec->getFirstFreeShortcutBookmark();
	if (number == -1) {
		CRLog::error("Cannot add bookmark: no space left in bookmarks storage.");
		return NULL;
	}
	CRBookmark * bm = rec->setShortcutBookmark(number, p);
	lString16 titleText;
	lString16 posText;
	if (bm && getBookmarkPosText(p, titleText, posText)) {
		bm->setTitleText(titleText);
		bm->setPosText(posText);
		return bm;
	}
	return NULL;
}

/// saves current page bookmark under numbered shortcut
CRBookmark * LVDocView::saveCurrentPageBookmark(lString16 comment) {
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return NULL;
	ldomXPointer p = getBookmark();
	if (p.isNull())
		return NULL;
	CRBookmark * bm = new CRBookmark(p);
	lString16 titleText;
	lString16 posText;
	bm->setType(bmkt_pos);
	if (getBookmarkPosText(p, titleText, posText)) {
		bm->setTitleText(titleText);
		bm->setPosText(posText);
	}
	bm->setStartPos(p.toString());
	int pos = p.toPoint().y;
	int fh = m_doc->getFullHeight();
	int percent = fh > 0 ? (int) (pos * (lInt64) 10000 / fh) : 0;
	if (percent < 0)
		percent = 0;
	if (percent > 10000)
		percent = 10000;
	bm->setPercent(percent);
	bm->setCommentText(comment);
	rec->getBookmarks().add(bm);
        updateBookMarksRanges();
	return bm;
}

/// restores page using bookmark by numbered shortcut
bool LVDocView::goToPageShortcutBookmark(int number) {
	CRFileHistRecord * rec = getCurrentFileHistRecord();
	if (!rec)
		return false;
	CRBookmark * bmk = rec->getShortcutBookmark(number);
	if (!bmk)
		return false;
	lString16 pos = bmk->getStartPos();
	ldomXPointer p = m_doc->createXPointer(pos);
	if (p.isNull())
		return false;
	if (getCurPage() != getBookmarkPage(p))
		savePosToNavigationHistory();
	goToBookmark(p);
        updateBookMarksRanges();
	return true;
}

inline int myabs(int n) { return n < 0 ? -n : n; }

static int calcBookmarkMatch(lvPoint pt, lvRect & rc1, lvRect & rc2, int type) {
    if (pt.y < rc1.top || pt.y >= rc2.bottom)
        return -1;
    if (type == bmkt_pos) {
        return myabs(pt.x - 0);
    }
    if (rc1.top == rc2.top) {
        // single line
        if (pt.y >= rc1.top && pt.y < rc2.bottom && pt.x >= rc1.left && pt.x < rc2.right) {
            return myabs(pt.x - (rc1.left + rc2.right) / 2);
        }
        return -1;
    } else {
        // first line
        if (pt.y >= rc1.top && pt.y < rc1.bottom && pt.x >= rc1.left) {
            return myabs(pt.x - (rc1.left + rc1.right) / 2);
        }
        // last line
        if (pt.y >= rc2.top && pt.y < rc2.bottom && pt.x < rc2.right) {
            return myabs(pt.x - (rc2.left + rc2.right) / 2);
        }
        // middle line
        return myabs(pt.y - (rc1.top + rc2.bottom) / 2);
    }
}

/// find bookmark by window point, return NULL if point doesn't belong to any bookmark
CRBookmark * LVDocView::findBookmarkByPoint(lvPoint pt) {
    CRFileHistRecord * rec = getCurrentFileHistRecord();
    if (!rec)
        return NULL;
    if (!windowToDocPoint(pt))
        return NULL;
    LVPtrVector<CRBookmark>  & bookmarks = rec->getBookmarks();
    CRBookmark * best = NULL;
    int bestMatch = -1;
    for (int i=0; i<bookmarks.length(); i++) {
        CRBookmark * bmk = bookmarks[i];
        int t = bmk->getType();
        if (t == bmkt_lastpos)
            continue;
        ldomXPointer p = m_doc->createXPointer(bmk->getStartPos());
        if (p.isNull())
            continue;
        lvRect rc;
        if (!p.getRect(rc))
            continue;
        ldomXPointer ep = (t == bmkt_pos) ? p : m_doc->createXPointer(bmk->getEndPos());
        if (ep.isNull())
            continue;
        lvRect erc;
        if (!ep.getRect(erc))
            continue;
        int match = calcBookmarkMatch(pt, rc, erc, t);
        if (match < 0)
            continue;
        if (match < bestMatch || bestMatch == -1) {
            bestMatch = match;
            best = bmk;
        }
    }
    return best;
}

// execute command
int LVDocView::doCommand(LVDocCmd cmd, int param) {
	CRLog::trace("doCommand(%d, %d)", (int)cmd, param);
	switch (cmd) {
    case DCMD_SET_DOC_FONTS:
        CRLog::trace("DCMD_SET_DOC_FONTS(%d)", param);
        m_props->setBool(PROP_EMBEDDED_FONTS, (param&1)!=0);
        getDocument()->setDocFlag(DOC_FLAG_ENABLE_DOC_FONTS, param!=0);
        REQUEST_RENDER("doCommand-set embedded doc fonts")
        break;
    case DCMD_SET_INTERNAL_STYLES:
        CRLog::trace("DCMD_SET_INTERNAL_STYLES(%d)", param);
        m_props->setBool(PROP_EMBEDDED_STYLES, (param&1)!=0);
        getDocument()->setDocFlag(DOC_FLAG_ENABLE_INTERNAL_STYLES, param!=0);
        REQUEST_RENDER("doCommand-set internal styles")
        break;
    case DCMD_REQUEST_RENDER:
        REQUEST_RENDER("doCommand-request render")
		break;
	case DCMD_TOGGLE_BOLD: {
		int b = m_props->getIntDef(PROP_FONT_WEIGHT_EMBOLDEN, 0) ? 0 : 1;
		m_props->setInt(PROP_FONT_WEIGHT_EMBOLDEN, b);
		LVRendSetFontEmbolden(b ? STYLE_FONT_EMBOLD_MODE_EMBOLD
				: STYLE_FONT_EMBOLD_MODE_NORMAL);
        REQUEST_RENDER("doCommand-toggle bold")
	}
		break;
	case DCMD_TOGGLE_PAGE_SCROLL_VIEW: {
		toggleViewMode();
	}
		break;
	case DCMD_GO_SCROLL_POS: {
		return goToScrollPos(param);
	}
		break;
	case DCMD_BEGIN: {
		if (getCurPage() > 0) {
			savePosToNavigationHistory();
			return SetPos(0);
		}
	}
		break;
	case DCMD_LINEUP: {
		if (m_view_mode == DVM_SCROLL) {
			return SetPos(GetPos() - param * (m_font_size * 3 / 2));
		} else {
			int p = getCurPage();
			return goToPage(p - getVisiblePageCount());
			//goToPage( m_pages.FindNearestPage(m_pos, -1));
		}
	}
		break;
	case DCMD_PAGEUP: {
		if (param < 1)
			param = 1;
		return moveByPage(-param);
	}
		break;
	case DCMD_PAGEDOWN: {
		if (param < 1)
			param = 1;
		return moveByPage(param);
	}
		break;
	case DCMD_LINK_NEXT: {
		selectNextPageLink(true);
	}
		break;
	case DCMD_LINK_PREV: {
		selectPrevPageLink(true);
	}
		break;
	case DCMD_LINK_FIRST: {
		selectFirstPageLink();
	}
		break;
#if CR_INTERNAL_PAGE_ORIENTATION==1
		case DCMD_ROTATE_BY: // rotate view, param =  +1 - clockwise, -1 - counter-clockwise
		{
			int a = (int)m_rotateAngle;
			if ( param==0 )
			param = 1;
			a = (a + param) & 3;
			SetRotateAngle( (cr_rotate_angle_t)(a) );
		}
		break;
		case DCMD_ROTATE_SET: // rotate viewm param = 0..3 (0=normal, 1=90`, ...)
		{
			SetRotateAngle( (cr_rotate_angle_t)(param & 3 ) );
		}
		break;
#endif
	case DCMD_LINK_GO: {
		goSelectedLink();
	}
		break;
	case DCMD_LINK_BACK: {
		return goBack() ? 1 : 0;
	}
		break;
	case DCMD_LINK_FORWARD: {
		return goForward() ? 1 : 0;
	}
		break;
	case DCMD_LINEDOWN: {
		if (m_view_mode == DVM_SCROLL) {
			return SetPos(GetPos() + param * (m_font_size * 3 / 2));
		} else {
			int p = getCurPage();
			return goToPage(p + getVisiblePageCount());
			//goToPage( m_pages.FindNearestPage(m_pos, +1));
		}
	}
		break;
	case DCMD_END: {
		if (getCurPage() < getPageCount() - getVisiblePageCount()) {
			savePosToNavigationHistory();
			return SetPos(GetFullHeight());
		}
	}
		break;
	case DCMD_GO_POS: {
		if (m_view_mode == DVM_SCROLL) {
			return SetPos(param);
		} else {
			return goToPage(m_pages.FindNearestPage(param, 0));
		}
	}
		break;
	case DCMD_SCROLL_BY: {
		if (m_view_mode == DVM_SCROLL) {
			CRLog::trace("DCMD_SCROLL_BY %d", param);
			return SetPos(GetPos() + param);
		} else {
			CRLog::trace("DCMD_SCROLL_BY ignored: not in SCROLL mode");
		}
	}
		break;
	case DCMD_GO_PAGE: {
		if (getCurPage() != param) {
			savePosToNavigationHistory();
			return goToPage(param);
		}
	}
		break;
    case DCMD_GO_PAGE_DONT_SAVE_HISTORY: {
            if (getCurPage() != param) {
                return goToPage(param);
            }
        }
        break;
	case DCMD_ZOOM_IN: {
		//ZoomLineSpc(+1);
		ZoomFont(+1);
	}
		break;
	case DCMD_ZOOM_OUT: {
		//ZoomLineSpc(-1);
		ZoomFont(-1);
	}
		break;

	case DCMD_LINE_SPC_UP: {
		ZoomLineSpc(+1);
					   }
					   break;
	case DCMD_LINE_SPC_DOWN: {
		ZoomLineSpc(-1);
						}
						break;

	case DCMD_TOGGLE_TEXT_FORMAT: {
		if (getTextFormatOptions() == txt_format_auto)
			setTextFormatOptions( txt_format_pre);
		else
			setTextFormatOptions( txt_format_auto);
	}
		break;
    case DCMD_SET_TEXT_FORMAT: {
        CRLog::trace("DCMD_SET_TEXT_FORMAT(%d)", param);
        setTextFormatOptions(param ? txt_format_auto : txt_format_pre);
        REQUEST_RENDER("doCommand-set text format")
    }
        break;
    case DCMD_BOOKMARK_SAVE_N: {
		// save current page bookmark under spicified number
		saveCurrentPageShortcutBookmark(param);
	}
		break;
	case DCMD_BOOKMARK_GO_N: {
		// go to bookmark with specified number
		if (!goToPageShortcutBookmark(param)) {
			// if no bookmark exists with specified shortcut, save new bookmark instead
			saveCurrentPageShortcutBookmark(param);
		}
	}
		break;
	case DCMD_MOVE_BY_CHAPTER: {
		return moveByChapter(param);
	}
		break;
    case DCMD_SELECT_FIRST_SENTENCE:
    case DCMD_SELECT_NEXT_SENTENCE:
    case DCMD_SELECT_PREV_SENTENCE:
    case DCMD_SELECT_MOVE_LEFT_BOUND_BY_WORDS: // move selection start by words
    case DCMD_SELECT_MOVE_RIGHT_BOUND_BY_WORDS: // move selection end by words
        return onSelectionCommand( cmd, param );

    /*
                ldomXPointerEx ptr( m_doc->getRootNode(), m_doc->getRootNode()->getChildCount());
                *out << "FORWARD ORDER:\n\n";
                //ptr.nextVisibleText();
                ptr.prevVisibleWordEnd();
                if ( ptr.thisSentenceStart() ) {
                    while ( 1 ) {
                        ldomXPointerEx ptr2(ptr);
                        ptr2.thisSentenceEnd();
                        ldomXRange range(ptr, ptr2);
                        lString16 str = range.getRangeText();
                        *out << ">sentence: " << UnicodeToUtf8(str) << "\n";
                        if ( !ptr.nextSentenceStart() )
                            break;
                    }
                }
    */
	default:
		// DO NOTHING
		break;
	}
	return 1;
}

int LVDocView::onSelectionCommand( int cmd, int param )
{
    CHECK_RENDER("onSelectionCommand()")
    LVRef<ldomXRange> pageRange = getPageDocumentRange();
    ldomXPointerEx pos( getBookmark() );
    ldomXRangeList & sel = getDocument()->getSelections();
    ldomXRange currSel;
    if ( sel.length()>0 )
        currSel = *sel[0];
    bool moved = false;
    bool makeSelStartVisible = true; // true: start, false: end
    if ( !currSel.isNull() && !pageRange->isInside(currSel.getStart()) && !pageRange->isInside(currSel.getEnd()) )
        currSel.clear();
    if ( currSel.isNull() || currSel.getStart().isNull() ) {
        // select first sentence on page
        if ( pos.isNull() ) {
            clearSelection();
            return 0;
        }
        if ( pos.thisSentenceStart() )
            currSel.setStart(pos);
        moved = true;
    }
    if ( currSel.getStart().isNull() ) {
        clearSelection();
        return 0;
    }
    if (cmd==DCMD_SELECT_MOVE_LEFT_BOUND_BY_WORDS || cmd==DCMD_SELECT_MOVE_RIGHT_BOUND_BY_WORDS) {
        if (cmd==DCMD_SELECT_MOVE_RIGHT_BOUND_BY_WORDS)
            makeSelStartVisible = false;
        int dir = param>0 ? 1 : -1;
        int distance = param>0 ? param : -param;
        CRLog::debug("Changing selection by words: bound=%s dir=%d distance=%d", (cmd==DCMD_SELECT_MOVE_LEFT_BOUND_BY_WORDS?"left":"right"), dir, distance);
        bool res;
        if (cmd==DCMD_SELECT_MOVE_LEFT_BOUND_BY_WORDS) {
            // DCMD_SELECT_MOVE_LEFT_BOUND_BY_WORDS
            for (int i=0; i<distance; i++) {
                if (dir>0) {
                    res = currSel.getStart().nextVisibleWordStart();
                    CRLog::debug("nextVisibleWordStart returned %s", res?"true":"false");
                } else {
                    res = currSel.getStart().prevVisibleWordStart();
                    CRLog::debug("prevVisibleWordStart returned %s", res?"true":"false");
                }
            }
            if (currSel.isNull()) {
                currSel.setEnd(currSel.getStart());
                currSel.getEnd().nextVisibleWordEnd();
            }
        } else {
            // DCMD_SELECT_MOVE_RIGHT_BOUND_BY_WORDS
            for (int i=0; i<distance; i++) {
                if (dir>0) {
                    res = currSel.getEnd().nextVisibleWordEnd();
                    CRLog::debug("nextVisibleWordEnd returned %s", res?"true":"false");
                } else {
                    res = currSel.getEnd().prevVisibleWordEnd();
                    CRLog::debug("prevVisibleWordEnd returned %s", res?"true":"false");
                }
            }
            if (currSel.isNull()) {
                currSel.setStart(currSel.getEnd());
                currSel.getStart().prevVisibleWordStart();
            }
        }
        moved = true;
    } else {
        // selection start doesn't match sentence bounds
        if ( !currSel.getStart().isSentenceStart() ) {
            currSel.getStart().thisSentenceStart();
            moved = true;
        }
        // update sentence end
        if ( !moved )
            switch ( cmd ) {
            case DCMD_SELECT_NEXT_SENTENCE:
                if ( !currSel.getStart().nextSentenceStart() )
                    return 0;
                break;
            case DCMD_SELECT_PREV_SENTENCE:
                if ( !currSel.getStart().prevSentenceStart() )
                    return 0;
                break;
            case DCMD_SELECT_FIRST_SENTENCE:
            default: // unknown action
                break;
        }
        currSel.setEnd(currSel.getStart());
        currSel.getEnd().thisSentenceEnd();
    }
    currSel.setFlags(1);
    selectRange(currSel);
    lvPoint startPoint = currSel.getStart().toPoint();
    lvPoint endPoint = currSel.getEnd().toPoint();
    int y0 = GetPos();
    int h = m_pageRects[0].height() - m_pageMargins.top
            - m_pageMargins.bottom - getPageHeaderHeight();
    //int y1 = y0 + h;
    if (makeSelStartVisible) {
        // make start of selection visible
        if (startPoint.y < y0 + m_font_size * 2 || startPoint.y > y0 + h * 3/4)
            SetPos(startPoint.y - m_font_size * 2);
        //goToBookmark(currSel.getStart());
    } else {
        // make end of selection visible
        if (endPoint.y > y0 + h * 3/4 - m_font_size * 2)
            SetPos(endPoint.y - h * 3/4 + m_font_size * 2, false);
    }
    CRLog::debug("Sel: %s", LCSTR(currSel.getRangeText()));
    return 1;
}


static const char * def_style_macros[] = {
    "styles.def.align", "text-align: justify",
    "styles.def.text-indent", "text-indent: 1.2em",
    "styles.def.margin-top", "margin-top: 0em",
    "styles.def.margin-bottom", "margin-bottom: 0em",
    "styles.def.margin-left", "margin-left: 0em",
    "styles.def.margin-right", "margin-right: 0em",
    "styles.title.align", "text-align: center",
    "styles.title.text-indent", "text-indent: 0em",
    "styles.title.margin-top", "margin-top: 0.3em",
    "styles.title.margin-bottom", "margin-bottom: 0.3em",
    "styles.title.margin-left", "margin-left: 0em",
    "styles.title.margin-right", "margin-right: 0em",
    "styles.title.font-size", "font-size: 110%",
    "styles.title.font-weight", "font-weight: bolder",
    "styles.subtitle.align", "text-align: center",
    "styles.subtitle.text-indent", "text-indent: 0em",
    "styles.subtitle.margin-top", "margin-top: 0.2em",
    "styles.subtitle.margin-bottom", "margin-bottom: 0.2em",
    "styles.subtitle.font-style", "font-style: italic",
    "styles.cite.align", "text-align: justify",
    "styles.cite.text-indent", "text-indent: 1.2em",
    "styles.cite.margin-top", "margin-top: 0.3em",
    "styles.cite.margin-bottom", "margin-bottom: 0.3em",
    "styles.cite.margin-left", "margin-left: 1em",
    "styles.cite.margin-right", "margin-right: 1em",
    "styles.cite.font-style", "font-style: italic",
    "styles.epigraph.align", "text-align: left",
    "styles.epigraph.text-indent", "text-indent: 1.2em",
    "styles.epigraph.margin-top", "margin-top: 0.3em",
    "styles.epigraph.margin-bottom", "margin-bottom: 0.3em",
    "styles.epigraph.margin-left", "margin-left: 15%",
    "styles.epigraph.margin-right", "margin-right: 1em",
    "styles.epigraph.font-style", "font-style: italic",
    "styles.pre.align", "text-align: left",
    "styles.pre.text-indent", "text-indent: 0em",
    "styles.pre.margin-top", "margin-top: 0em",
    "styles.pre.margin-bottom", "margin-bottom: 0em",
    "styles.pre.margin-left", "margin-left: 0em",
    "styles.pre.margin-right", "margin-right: 0em",
    "styles.pre.font-face", "font-family: \"Courier New\", \"Courier\", monospace",
    "styles.poem.align", "text-align: left",
    "styles.poem.text-indent", "text-indent: 0em",
    "styles.poem.margin-top", "margin-top: 0.3em",
    "styles.poem.margin-bottom", "margin-bottom: 0.3em",
    "styles.poem.margin-left", "margin-left: 15%",
    "styles.poem.margin-right", "margin-right: 1em",
    "styles.poem.font-style", "font-style: italic",
    "styles.text-author.font-style", "font-style: italic",
    "styles.text-author.font-weight", "font-weight: bolder",
    "styles.text-author.margin-left", "margin-left: 1em",
    "styles.text-author.font-style", "font-style: italic",
    "styles.text-author.font-weight", "font-weight: bolder",
    "styles.text-author.margin-left", "margin-left: 1em",
    "styles.link.text-decoration", "text-decoration: underline",
    "styles.footnote-link.font-size", "font-size: 70%",
    "styles.footnote-link.vertical-align", "vertical-align: super",
    "styles.footnote", "font-size: 70%",
    "styles.footnote-title", "font-size: 110%",
    "styles.annotation.font-size", "font-size: 90%",
    "styles.annotation.margin-left", "margin-left: 1em",
    "styles.annotation.margin-right", "margin-right: 1em",
    "styles.annotation.font-style", "font-style: italic",
    "styles.annotation.align", "text-align: justify",
    "styles.annotation.text-indent", "text-indent: 1.2em",
    NULL,
    NULL,
};

/// sets default property values if properties not found, checks ranges
void LVDocView::propsUpdateDefaults(CRPropRef props) {
	lString16Collection list;
	fontMan->getFaceList(list);
	static int def_aa_props[] = { 2, 1, 0 };

	props->setIntDef(PROP_MIN_FILE_SIZE_TO_CACHE,
            300000); // ~6M
	props->setIntDef(PROP_FORCED_MIN_FILE_SIZE_TO_CACHE,
			DOCUMENT_CACHING_MIN_SIZE); // 32K
	props->setIntDef(PROP_PROGRESS_SHOW_FIRST_PAGE, 1);

	props->limitValueList(PROP_FONT_ANTIALIASING, def_aa_props,
			sizeof(def_aa_props) / sizeof(int));
	props->setHexDef(PROP_FONT_COLOR, 0x000000);
	props->setHexDef(PROP_BACKGROUND_COLOR, 0xFFFFFF);
	props->setHexDef(PROP_STATUS_FONT_COLOR, 0xFF000000);
//	props->setIntDef(PROP_TXT_OPTION_PREFORMATTED, 0);
	props->setIntDef(PROP_AUTOSAVE_BOOKMARKS, 1);
	props->setIntDef(PROP_DISPLAY_FULL_UPDATE_INTERVAL, 1);
	props->setIntDef(PROP_DISPLAY_TURBO_UPDATE_MODE, 0);

	lString8 defFontFace;
	static const char * goodFonts[] = { "DejaVu Sans", "FreeSans",
			"Liberation Sans", "Arial", "Verdana", NULL };
	for (int i = 0; goodFonts[i]; i++) {
		if (list.contains(lString16(goodFonts[i]))) {
			defFontFace = lString8(goodFonts[i]);
			break;
		}
	}
	if (defFontFace.empty())
		defFontFace = UnicodeToUtf8(list[0]);

	lString8 defStatusFontFace(DEFAULT_STATUS_FONT_NAME);
	props->setStringDef(PROP_FONT_FACE, defFontFace.c_str());
	props->setStringDef(PROP_STATUS_FONT_FACE, defStatusFontFace.c_str());
	if (list.length() > 0 && !list.contains(props->getStringDef(PROP_FONT_FACE,
			defFontFace.c_str())))
		props->setString(PROP_FONT_FACE, list[0]);
	props->setStringDef(PROP_FALLBACK_FONT_FACE, props->getStringDef(PROP_FONT_FACE,
                        defFontFace.c_str()));

	props->setIntDef(PROP_FONT_SIZE,
			m_font_sizes[m_font_sizes.length() * 2 / 3]);
	props->limitValueList(PROP_FONT_SIZE, m_font_sizes.ptr(),
			m_font_sizes.length());
	props->limitValueList(PROP_INTERLINE_SPACE, cr_interline_spaces,
			sizeof(cr_interline_spaces) / sizeof(int));
#if CR_INTERNAL_PAGE_ORIENTATION==1
	static int def_rot_angle[] = {0, 1, 2, 3};
	props->limitValueList( PROP_ROTATE_ANGLE, def_rot_angle, 4 );
#endif
	static int bool_options_def_true[] = { 1, 0 };
	static int bool_options_def_false[] = { 0, 1 };

	props->limitValueList(PROP_FONT_WEIGHT_EMBOLDEN, bool_options_def_false, 2);
#ifndef ANDROID
	props->limitValueList(PROP_EMBEDDED_STYLES, bool_options_def_true, 2);
	props->limitValueList(PROP_EMBEDDED_FONTS, bool_options_def_true, 2);
#endif
	static int int_option_hinting[] = { 0, 1, 2 };
	props->limitValueList(PROP_FONT_HINTING, int_option_hinting, 3);
    static int int_options_1_2[] = { 2, 1 };
	props->limitValueList(PROP_LANDSCAPE_PAGES, int_options_1_2, 2);
	props->limitValueList(PROP_PAGE_VIEW_MODE, bool_options_def_true, 2);
	props->limitValueList(PROP_FOOTNOTES, bool_options_def_true, 2);
	props->limitValueList(PROP_SHOW_TIME, bool_options_def_false, 2);
	props->limitValueList(PROP_DISPLAY_INVERSE, bool_options_def_false, 2);
	props->limitValueList(PROP_BOOKMARK_ICONS, bool_options_def_false, 2);
	props->limitValueList(PROP_FONT_KERNING_ENABLED, bool_options_def_false, 2);
    //props->limitValueList(PROP_FLOATING_PUNCTUATION, bool_options_def_true, 2);
    static int def_bookmark_highlight_modes[] = { 0, 1, 2 };
    props->setIntDef(PROP_HIGHLIGHT_COMMENT_BOOKMARKS, highlight_mode_underline);
    props->limitValueList(PROP_HIGHLIGHT_COMMENT_BOOKMARKS, def_bookmark_highlight_modes, sizeof(def_bookmark_highlight_modes)/sizeof(int));
    props->setColorDef(PROP_HIGHLIGHT_SELECTION_COLOR, 0xC0C0C0); // silver
    props->setColorDef(PROP_HIGHLIGHT_BOOKMARK_COLOR_COMMENT, 0xA08020); // yellow
    props->setColorDef(PROP_HIGHLIGHT_BOOKMARK_COLOR_CORRECTION, 0xA04040); // red

    static int def_status_line[] = { 0, 1, 2 };
	props->limitValueList(PROP_STATUS_LINE, def_status_line, 3);
    static int def_margin[] = {8, 0, 1, 2, 3, 4, 5, 8, 10, 12, 14, 15, 16, 20, 25, 30, 40, 50, 60, 80, 100, 130, 150, 200, 300};
	props->limitValueList(PROP_PAGE_MARGIN_TOP, def_margin, sizeof(def_margin)/sizeof(int));
	props->limitValueList(PROP_PAGE_MARGIN_BOTTOM, def_margin, sizeof(def_margin)/sizeof(int));
	props->limitValueList(PROP_PAGE_MARGIN_LEFT, def_margin, sizeof(def_margin)/sizeof(int));
	props->limitValueList(PROP_PAGE_MARGIN_RIGHT, def_margin, sizeof(def_margin)/sizeof(int));
	static int def_updates[] = { 1, 0, 2, 3, 4, 5, 6, 7, 8, 10, 14 };
	props->limitValueList(PROP_DISPLAY_FULL_UPDATE_INTERVAL, def_updates, 11);
	int fs = props->getIntDef(PROP_STATUS_FONT_SIZE, INFO_FONT_SIZE);
    if (fs < 8)
        fs = 8;
    else if (fs > 32)
        fs = 32;
	props->setIntDef(PROP_STATUS_FONT_SIZE, fs);
	lString16 hyph = props->getStringDef(PROP_HYPHENATION_DICT,
			DEF_HYPHENATION_DICT);
#if !defined(ANDROID)
	HyphDictionaryList * dictlist = HyphMan::getDictList();
	if (dictlist) {
		if (dictlist->find(hyph))
			props->setStringDef(PROP_HYPHENATION_DICT, hyph);
		else
			props->setStringDef(PROP_HYPHENATION_DICT, lString16(
					HYPH_DICT_ID_ALGORITHM));
	}
#endif
	props->setIntDef(PROP_STATUS_LINE, 0);
	props->setIntDef(PROP_SHOW_TITLE, 1);
	props->setIntDef(PROP_SHOW_TIME, 1);
	props->setIntDef(PROP_SHOW_BATTERY, 1);
    props->setIntDef(PROP_SHOW_BATTERY_PERCENT, 0);
    props->setIntDef(PROP_SHOW_PAGE_COUNT, 1);
    props->setIntDef(PROP_SHOW_PAGE_NUMBER, 1);
    props->setIntDef(PROP_SHOW_POS_PERCENT, 0);
    props->setIntDef(PROP_STATUS_CHAPTER_MARKS, 1);
    props->setIntDef(PROP_FLOATING_PUNCTUATION, 1);

#ifndef ANDROID
    props->setIntDef(PROP_EMBEDDED_STYLES, 1);
    props->setIntDef(PROP_EMBEDDED_FONTS, 1);
    props->setIntDef(PROP_TXT_OPTION_PREFORMATTED, 0);
    props->limitValueList(PROP_TXT_OPTION_PREFORMATTED, bool_options_def_false,
            2);
#endif

    props->setStringDef(PROP_FONT_GAMMA, "1.00");

    img_scaling_option_t defImgScaling;
    props->setIntDef(PROP_IMG_SCALING_ZOOMOUT_BLOCK_SCALE, defImgScaling.max_scale);
    props->setIntDef(PROP_IMG_SCALING_ZOOMOUT_INLINE_SCALE, 0); //auto
    props->setIntDef(PROP_IMG_SCALING_ZOOMIN_BLOCK_SCALE, defImgScaling.max_scale);
    props->setIntDef(PROP_IMG_SCALING_ZOOMIN_INLINE_SCALE, 0); // auto
    props->setIntDef(PROP_IMG_SCALING_ZOOMOUT_BLOCK_MODE, defImgScaling.mode);
    props->setIntDef(PROP_IMG_SCALING_ZOOMOUT_INLINE_MODE, defImgScaling.mode);
    props->setIntDef(PROP_IMG_SCALING_ZOOMIN_BLOCK_MODE, defImgScaling.mode);
    props->setIntDef(PROP_IMG_SCALING_ZOOMIN_INLINE_MODE, defImgScaling.mode);

    int p = props->getIntDef(PROP_FORMAT_MIN_SPACE_CONDENSING_PERCENT, DEF_MIN_SPACE_CONDENSING_PERCENT);
    if (p<25)
        p = 25;
    if (p>100)
        p = 100;
    props->setInt(PROP_FORMAT_MIN_SPACE_CONDENSING_PERCENT, p);

    props->setIntDef(PROP_FILE_PROPS_FONT_SIZE, 22);

    for (int i=0; def_style_macros[i*2]; i++)
        props->setStringDef(def_style_macros[i * 2], def_style_macros[i * 2 + 1]);
}

#define H_MARGIN 8
#define V_MARGIN 8
#define ALLOW_BOTTOM_STATUSBAR 0
void LVDocView::setStatusMode(int newMode, bool showClock, bool showTitle,
        bool showBattery, bool showChapterMarks, bool showPercent, bool showPageNumber, bool showPageCount) {
	CRLog::debug("LVDocView::setStatusMode(%d, %s %s %s %s)", newMode,
			showClock ? "clock" : "", showTitle ? "title" : "",
			showBattery ? "battery" : "", showChapterMarks ? "marks" : "");
#if ALLOW_BOTTOM_STATUSBAR==1
	lvRect margins( H_MARGIN, V_MARGIN, H_MARGIN, V_MARGIN/2 );
	lvRect oldMargins = _docview->getPageMargins( );
	if (newMode==1)
	margins.bottom = STANDARD_STATUSBAR_HEIGHT + V_MARGIN/4;
#endif
	if (newMode == 0)
        setPageHeaderInfo(
                  (showPageNumber ? PGHDR_PAGE_NUMBER : 0)
                | (showClock ? PGHDR_CLOCK : 0)
                | (showBattery ? PGHDR_BATTERY : 0)
                | (showPageCount ? PGHDR_PAGE_COUNT : 0)
				| (showTitle ? PGHDR_AUTHOR : 0)
				| (showTitle ? PGHDR_TITLE : 0)
				| (showChapterMarks ? PGHDR_CHAPTER_MARKS : 0)
                | (showPercent ? PGHDR_PERCENT : 0)
        //| PGHDR_CLOCK
		);
	else
		setPageHeaderInfo(0);
#if ALLOW_BOTTOM_STATUSBAR==1
	setPageMargins( margins );
#endif
}

/// applies properties, returns list of not recognized properties
CRPropRef LVDocView::propsApply(CRPropRef props) {
	CRLog::trace("LVDocView::propsApply( %d items )", props->getCount());
	CRPropRef unknown = LVCreatePropsContainer();
	for (int i = 0; i < props->getCount(); i++) {
		lString8 name(props->getName(i));
		lString16 value = props->getValue(i);
        //bool isUnknown = false;
		if (name == PROP_FONT_ANTIALIASING) {
			int antialiasingMode = props->getIntDef(PROP_FONT_ANTIALIASING, 2);
			fontMan->SetAntialiasMode(antialiasingMode);
            REQUEST_RENDER("propsApply - font antialiasing")
        } else if (name.startsWith(cs8("styles."))) {
            REQUEST_RENDER("propsApply - styles.*")
        } else if (name == PROP_FONT_GAMMA) {
            double gamma = 1.0;
            lString16 s = props->getStringDef(PROP_FONT_GAMMA, "1.0");
            lString8 s8 = UnicodeToUtf8(s);
            if ( sscanf(s8.c_str(), "%lf", &gamma)==1 ) {
                fontMan->SetGamma(gamma);
                clearImageCache();
            }
        } else if (name == PROP_FONT_HINTING) {
            int mode = props->getIntDef(PROP_FONT_HINTING, (int)HINTING_MODE_AUTOHINT);
            if ((int)fontMan->GetHintingMode() != mode && mode>=0 && mode<=2) {
                //CRLog::debug("Setting hinting mode to %d", mode);
                fontMan->SetHintingMode((hinting_mode_t)mode);
                requestRender();
            }
        } else if (name == PROP_HIGHLIGHT_SELECTION_COLOR || name == PROP_HIGHLIGHT_BOOKMARK_COLOR_COMMENT || name == PROP_HIGHLIGHT_BOOKMARK_COLOR_COMMENT) {
            REQUEST_RENDER("propsApply - highlight")
        } else if (name == PROP_LANDSCAPE_PAGES) {
            int pages = props->getIntDef(PROP_LANDSCAPE_PAGES, 2);
			setVisiblePageCount(pages);
		} else if (name == PROP_FONT_KERNING_ENABLED) {
			bool kerning = props->getBoolDef(PROP_FONT_KERNING_ENABLED, false);
			fontMan->setKerning(kerning);
            REQUEST_RENDER("propsApply - kerning")
		} else if (name == PROP_FONT_WEIGHT_EMBOLDEN) {
			bool embolden = props->getBoolDef(PROP_FONT_WEIGHT_EMBOLDEN, false);
			int v = embolden ? STYLE_FONT_EMBOLD_MODE_EMBOLD
					: STYLE_FONT_EMBOLD_MODE_NORMAL;
			if (v != LVRendGetFontEmbolden()) {
				LVRendSetFontEmbolden(v);
                REQUEST_RENDER("propsApply - embolden")
			}
		} else if (name == PROP_TXT_OPTION_PREFORMATTED) {
			bool preformatted = props->getBoolDef(PROP_TXT_OPTION_PREFORMATTED,
					false);
			setTextFormatOptions(preformatted ? txt_format_pre
					: txt_format_auto);
        } else if (name == PROP_IMG_SCALING_ZOOMIN_INLINE_SCALE || name == PROP_IMG_SCALING_ZOOMIN_INLINE_MODE
                   || name == PROP_IMG_SCALING_ZOOMOUT_INLINE_SCALE || name == PROP_IMG_SCALING_ZOOMOUT_INLINE_MODE
                   || name == PROP_IMG_SCALING_ZOOMIN_BLOCK_SCALE || name == PROP_IMG_SCALING_ZOOMIN_BLOCK_MODE
                   || name == PROP_IMG_SCALING_ZOOMOUT_BLOCK_SCALE || name == PROP_IMG_SCALING_ZOOMOUT_BLOCK_MODE
                   ) {
            m_props->setString(name.c_str(), value);
            REQUEST_RENDER("propsApply -img scale")
        } else if (name == PROP_FONT_COLOR || name == PROP_BACKGROUND_COLOR
				|| name == PROP_DISPLAY_INVERSE || name==PROP_STATUS_FONT_COLOR) {
			// update current value in properties
			m_props->setString(name.c_str(), value);
			lUInt32 textColor = m_props->getIntDef(PROP_FONT_COLOR, 0x000000);
			lUInt32 backColor = m_props->getIntDef(PROP_BACKGROUND_COLOR,
					0xFFFFFF);
			lUInt32 statusColor = m_props->getIntDef(PROP_STATUS_FONT_COLOR,
					0xFF000000);
			bool inverse = m_props->getBoolDef(PROP_DISPLAY_INVERSE, false);
			if (inverse) {
				CRLog::trace("Setting inverse colors");
				setBackgroundColor(textColor);
				setTextColor(backColor);
				setStatusColor(backColor);
                REQUEST_RENDER("propsApply  color") // TODO: only colors to be changed
			} else {
				CRLog::trace("Setting normal colors");
				setBackgroundColor(backColor);
				setTextColor(textColor);
				setStatusColor(statusColor);
                REQUEST_RENDER("propsApply  color") // TODO: only colors to be changed
			}
		} else if (name == PROP_PAGE_MARGIN_TOP || name
				== PROP_PAGE_MARGIN_LEFT || name == PROP_PAGE_MARGIN_RIGHT
				|| name == PROP_PAGE_MARGIN_BOTTOM) {
            int margin = props->getIntDef(name.c_str(), 8);
            int maxmargin = (name == PROP_PAGE_MARGIN_LEFT || name == PROP_PAGE_MARGIN_RIGHT) ? m_dx / 3 : m_dy / 3;
            if (margin > maxmargin)
                margin = maxmargin;
			lvRect rc = getPageMargins();
			if (name == PROP_PAGE_MARGIN_TOP)
				rc.top = margin;
			else if (name == PROP_PAGE_MARGIN_BOTTOM)
				rc.bottom = margin;
			else if (name == PROP_PAGE_MARGIN_LEFT)
				rc.left = margin;
			else if (name == PROP_PAGE_MARGIN_RIGHT)
				rc.right = margin;
			setPageMargins(rc);
		} else if (name == PROP_FONT_FACE) {
			setDefaultFontFace(UnicodeToUtf8(value));
                } else if (name == PROP_FALLBACK_FONT_FACE) {
                    lString8 oldFace = fontMan->GetFallbackFontFace();
                    if ( UnicodeToUtf8(value)!=oldFace )
                        fontMan->SetFallbackFontFace(UnicodeToUtf8(value));
                    value = Utf8ToUnicode(fontMan->GetFallbackFontFace());
                    if ( UnicodeToUtf8(value) != oldFace ) {
                        REQUEST_RENDER("propsApply  fallback font face")
                    }
                } else if (name == PROP_STATUS_FONT_FACE) {
			setStatusFontFace(UnicodeToUtf8(value));
		} else if (name == PROP_STATUS_LINE || name == PROP_SHOW_TIME
				|| name	== PROP_SHOW_TITLE || name == PROP_SHOW_BATTERY
                || name == PROP_STATUS_CHAPTER_MARKS || name == PROP_SHOW_POS_PERCENT
                || name == PROP_SHOW_PAGE_COUNT || name == PROP_SHOW_PAGE_NUMBER) {
			m_props->setString(name.c_str(), value);
			setStatusMode(m_props->getIntDef(PROP_STATUS_LINE, 0),
					m_props->getBoolDef(PROP_SHOW_TIME, false),
					m_props->getBoolDef(PROP_SHOW_TITLE, true),
					m_props->getBoolDef(PROP_SHOW_BATTERY, true),
                    m_props->getBoolDef(PROP_STATUS_CHAPTER_MARKS, true),
                    m_props->getBoolDef(PROP_SHOW_POS_PERCENT, false),
                    m_props->getBoolDef(PROP_SHOW_PAGE_NUMBER, true),
                    m_props->getBoolDef(PROP_SHOW_PAGE_COUNT, true)
                    );
			//} else if ( name==PROP_BOOKMARK_ICONS ) {
			//    enableBookmarkIcons( value==L"1" );
		} else if (name == PROP_FONT_SIZE) {
			int fontSize = props->getIntDef(PROP_FONT_SIZE, m_font_sizes[0]);
			setFontSize(fontSize);//cr_font_sizes
			value = lString16::itoa(m_font_size);
		} else if (name == PROP_STATUS_FONT_SIZE) {
			int fontSize = props->getIntDef(PROP_STATUS_FONT_SIZE,
					INFO_FONT_SIZE);
			if (fontSize < 8)
				fontSize = 8;
			else if (fontSize > 28)
				fontSize = 28;
			setStatusFontSize(fontSize);//cr_font_sizes
			value = lString16::itoa(fontSize);
#if !defined(ANDROID)
		} else if (name == PROP_HYPHENATION_DICT) {
			// hyphenation dictionary
			lString16 id = props->getStringDef(PROP_HYPHENATION_DICT,
					DEF_HYPHENATION_DICT);
            CRLog::debug("PROP_HYPHENATION_DICT = %s", LCSTR(id));
            HyphDictionaryList * list = HyphMan::getDictList();
			HyphDictionary * curr = HyphMan::getSelectedDictionary();
			if (list) {
				if (!curr || curr->getId() != id) {
					//if (
					CRLog::debug("Changing hyphenation to %s", LCSTR(id));
					list->activate(id);
					//)
                    REQUEST_RENDER("propsApply hyphenation dict")
				}
			}
#endif
		} else if (name == PROP_INTERLINE_SPACE) {
			int interlineSpace = props->getIntDef(PROP_INTERLINE_SPACE,
					cr_interline_spaces[0]);
			setDefaultInterlineSpace(interlineSpace);//cr_font_sizes
			value = lString16::itoa(m_def_interline_space);
#if CR_INTERNAL_PAGE_ORIENTATION==1
		} else if ( name==PROP_ROTATE_ANGLE ) {
			cr_rotate_angle_t angle = (cr_rotate_angle_t) (props->getIntDef( PROP_ROTATE_ANGLE, 0 )&3);
			SetRotateAngle( angle );
			value = lString16::itoa( m_rotateAngle );
#endif
		} else if (name == PROP_EMBEDDED_STYLES) {
			bool value = props->getBoolDef(PROP_EMBEDDED_STYLES, true);
			getDocument()->setDocFlag(DOC_FLAG_ENABLE_INTERNAL_STYLES, value);
            REQUEST_RENDER("propsApply embedded styles")
        } else if (name == PROP_EMBEDDED_FONTS) {
            bool value = props->getBoolDef(PROP_EMBEDDED_FONTS, true);
            getDocument()->setDocFlag(DOC_FLAG_ENABLE_DOC_FONTS, value);
            REQUEST_RENDER("propsApply doc fonts")
        } else if (name == PROP_FOOTNOTES) {
			bool value = props->getBoolDef(PROP_FOOTNOTES, true);
			getDocument()->setDocFlag(DOC_FLAG_ENABLE_FOOTNOTES, value);
            REQUEST_RENDER("propsApply footnotes")
        } else if (name == PROP_FLOATING_PUNCTUATION) {
            bool value = props->getBoolDef(PROP_FLOATING_PUNCTUATION, true);
            if ( gFlgFloatingPunctuationEnabled != value ) {
                gFlgFloatingPunctuationEnabled = value;
                REQUEST_RENDER("propsApply floating punct")
            }
        } else if (name == PROP_FORMAT_MIN_SPACE_CONDENSING_PERCENT) {
            int value = props->getIntDef(PROP_FORMAT_MIN_SPACE_CONDENSING_PERCENT, DEF_MIN_SPACE_CONDENSING_PERCENT);
            if (getDocument()->setMinSpaceCondensingPercent(value))
                REQUEST_RENDER("propsApply condensing percent")
        } else if (name == PROP_HIGHLIGHT_COMMENT_BOOKMARKS) {
            bool value = props->getIntDef(PROP_HIGHLIGHT_COMMENT_BOOKMARKS, highlight_mode_underline);
            if (m_highlightBookmarks != value) {
                m_highlightBookmarks = value;
                updateBookMarksRanges();
            }
            REQUEST_RENDER("propsApply - PROP_HIGHLIGHT_COMMENT_BOOKMARKS")
        } else if (name == PROP_PAGE_VIEW_MODE) {
			LVDocViewMode m =
					props->getIntDef(PROP_PAGE_VIEW_MODE, 1) ? DVM_PAGES
							: DVM_SCROLL;
			setViewMode(m);
		} else {
			// unknown property, adding to list of unknown properties
			unknown->setString(name.c_str(), value);
            //isUnknown = true;
		}
		//if ( !isUnknown ) {
		// update current value in properties
		m_props->setString(name.c_str(), value);
		//}
	}
	return unknown;
}

/// returns current values of supported properties
CRPropRef LVDocView::propsGetCurrent() {
	return m_props;
}

void LVPageWordSelector::updateSelection()
{
    LVArray<ldomWord> list;
    if ( _words.getSelWord() )
        list.add(_words.getSelWord()->getWord() );
    if ( list.length() )
        _docview->selectWords(list);
    else
        _docview->clearSelection();
}

LVPageWordSelector::~LVPageWordSelector()
{
    _docview->clearSelection();
}

LVPageWordSelector::LVPageWordSelector( LVDocView * docview )
    : _docview(docview)
{
    LVRef<ldomXRange> range = _docview->getPageDocumentRange();
    if (!range.isNull()) {
		_words.addRangeWords(*range, true);
                if (_docview->getVisiblePageCount() > 1) { // _docview->isPageMode() &&
                        // process second page
                        int pageNumber = _docview->getCurPage();
                        range = _docview->getPageDocumentRange(pageNumber + 1);
                        if (!range.isNull())
                            _words.addRangeWords(*range, true);
                }
		_words.selectMiddleWord();
		updateSelection();
	}
}

void LVPageWordSelector::moveBy( MoveDirection dir, int distance )
{
    _words.selectNextWord(dir, distance);
    updateSelection();
}

void LVPageWordSelector::selectWord(int x, int y)
{
	ldomWordEx * word = _words.findNearestWord(x, y, DIR_ANY);
	_words.selectWord(word, DIR_ANY);
	updateSelection();
}

// append chars to search pattern
ldomWordEx * LVPageWordSelector::appendPattern( lString16 chars )
{
    ldomWordEx * res = _words.appendPattern(chars);
    if ( res )
        updateSelection();
    return res;
}

// remove last item from pattern
ldomWordEx * LVPageWordSelector::reducePattern()
{
    ldomWordEx * res = _words.reducePattern();
    if ( res )
        updateSelection();
    return res;
}

class SimpleTitleFormatter {
	lString16 _text;
	lString16Collection _lines;
	lString8 _fontFace;
	bool _bold;
	bool _italic;
	lUInt32 _color;
	LVFontRef _font;
	int _lineHeight;
	int _height;
	int _width;
	int _maxWidth;
	int _maxHeight;
public:
	int getHeight() { return _height; }
	int getWidth() { return _width; }
	SimpleTitleFormatter(lString16 text, lString8 fontFace, bool bold, bool italic, lUInt32 color, int maxWidth, int maxHeight) : _text(text), _fontFace(fontFace), _bold(bold), _italic(italic), _color(color), _maxWidth(maxWidth), _maxHeight(maxHeight) {
		if (_text.length() > 80)
			_text = _text.substr(0, 80) + "...";
		if (findBestSize())
			return;
		_text = _text.substr(0, 50) + "...";
		if (findBestSize())
			return;
		_text = _text.substr(0, 32) + "...";
		if (findBestSize())
			return;
		_text = _text.substr(0, 16) + "...";
		findBestSize();
	}

	bool measure() {
		_width = 0;
		_height = 0;
		for (int i=_lines.length() - 1; i >= 0; i--) {
			lString16 line = _lines[i].trim();
			int w = _font->getTextWidth(line.c_str(), line.length());
			if (w > _width)
				_width = w;
			_height += _lineHeight;
		}
		return _width < _maxWidth && _height < _maxHeight;
	}
	bool splitLines(const char * delimiter) {
		lString16 delim16(delimiter);
		int bestpos = -1;
		int bestdist = -1;
		int start = 0;
		bool skipDelimiter = *delimiter == '|';
		for (;;) {
			int p = _text.pos(delim16, start);
			if (p < 0)
				break;
			int dist = _text.length() / 2 - p;
			if (dist < 0)
				dist = -dist;
			if (bestdist == -1 || dist < bestdist) {
				bestdist = dist;
				bestpos = p;
			}
			start = p + 1;
		}
		if (bestpos < 0)
			return false;
		_lines.add(_text.substr(0, bestpos + (skipDelimiter ? 0 : delim16.length())).trim());
		_lines.add(_text.substr(bestpos + delim16.length()).trim());
		return measure();
	}
	bool format(int fontSize) {
		_font = fontMan->GetFont(fontSize, _bold ? 800 : 400, _italic, css_ff_sans_serif, _fontFace, -1);
		_lineHeight = _font->getHeight() * 120 / 100;
		_lines.clear();
		int singleLineWidth = _font->getTextWidth(_text.c_str(), _text.length());
		if (singleLineWidth < _maxWidth) {
			_lines.add(_text);
			_width = singleLineWidth;
			_height = _lineHeight;
			return _width < _maxWidth && _height < _maxHeight;
		}
		if (splitLines("|"))
			return true;
		if (splitLines(","))
			return true;
		if (splitLines(";"))
			return true;
		if (splitLines(":"))
			return true;
		if (splitLines("-"))
			return true;
		if (splitLines(" "))
			return true;
		if (splitLines("_"))
			return true;
		if (splitLines("."))
			return true;
		_lines.clear();
		int p = _text.length() / 2;
		_lines.add(_text.substr(0, p));
		_lines.add(_text.substr(p, _text.length() - p));
		return false;
	}
	bool findBestSize() {
		int maxSizeW = _maxWidth / 10;
		int maxSizeH = _maxHeight / 3;
		int maxSize = maxSizeW < maxSizeH ? maxSizeW : maxSizeH;
		if (maxSize > 50)
			maxSize = 50;
        int minSize = 11;
		for (int size = maxSize; size >= minSize; ) {
			if (format(size))
				return true;
			if (size > 30)
				size -= 3;
			else if (size > 20)
				size -= 2;
			else
				size--;
		}
		return false;
	}
	void draw(LVDrawBuf & buf, lString16 str, int x, int y, int align) {
		int w = _font->getTextWidth(str.c_str(), str.length());
		if (align == 0)
			x -= w / 2; // center
		else if (align == 1)
			x -= w; // right
		buf.SetTextColor(_color);
		_font->DrawTextString(&buf, x, y, str.c_str(), str.length(), '?');
	}
	void draw(LVDrawBuf & buf, lvRect rc, int halign, int valign) {
		int y0 = rc.top;
		if (valign == 0)
			y0 += (rc.height() - _lines.length() * _lineHeight) / 2;
		int x0 = halign < 0 ? rc.left : (halign > 0 ? rc.right : (rc.left + rc.right) / 2);
		for (int i=0; i<_lines.length(); i++) {
			draw(buf, _lines[i], x0, y0, halign);
			y0 += _lineHeight;
		}
	}
};

void LVDrawBookCover(LVDrawBuf & buf, LVImageSourceRef image, lString8 fontFace, lString16 title, lString16 authors, lString16 seriesName, int seriesNumber) {
	if (!image.isNull() && image->GetWidth() > 0 && image->GetHeight() > 0) {
		buf.Draw(image, 0, 0, buf.GetWidth(), buf.GetHeight());
		return;
	}

	bool isGray = buf.GetBitsPerPixel() <= 8;

	int dx = buf.GetWidth();
	int dy = buf.GetHeight();
	CRLog::trace("drawing default cover page %d x %d", dx, dy);
	lvRect rc(0, 0, buf.GetWidth(), buf.GetHeight());
	buf.FillRect(rc, 0xC0C0C0);
	rc.shrink(rc.width() / 40);
	buf.FillRect(rc, isGray ? 0xFFFFFF : 0xE0E0E0);

	lvRect rc2(rc);
	rc2.top = rc.height() * 8 / 10;
	rc2.bottom = rc2.top + rc.height() / 15;
	buf.FillRect(rc2, 0xC0FFC040);

	lvRect rc3(rc);
	rc3.left += rc.width() / 30;
	rc3.right = rc3.left + rc.width() / 30;
	buf.FillRect(rc3, 0xC0F0D060);


	LVFontRef fnt = fontMan->GetFont(16, 400, false, css_ff_sans_serif, fontFace, -1); // = fontMan
	if (!fnt.isNull()) {

		rc.left += rc.width() / 10;
		rc.right -= rc.width() / 20;

		lUInt32 titleColor = isGray ? 0 : 0x800000;
		lUInt32 authorColor = isGray ? 0 : 0x000080;
		lUInt32 seriesColor = isGray ? 0 : 0x406040;

		lvRect authorRc(rc);

		if (!authors.empty()) {
			authorRc.top += rc.height() * 1 / 20;
			authorRc.bottom = authorRc.top + rc.height() * 2 / 10;
			SimpleTitleFormatter authorFmt(authors, fontFace, false, false, authorColor, authorRc.width(), authorRc.height());
			authorFmt.draw(buf, authorRc, 0, 0);
		} else {
			authorRc.bottom = authorRc.top;
		}

		if (!title.empty()) {
			lvRect titleRc(rc);
			titleRc.top += rc.height() * 4 / 10;
			titleRc.bottom = titleRc.top + rc.height() * 7 / 10;

			lvRect rc3(titleRc);
			rc3.top -= rc.height() / 20;
			rc3.bottom = rc3.top + rc.height() / 40;
			buf.FillRect(rc3, 0x40FFFFFF);

			SimpleTitleFormatter titleFmt(title, fontFace, true, false, titleColor, titleRc.width(), titleRc.height());
			titleFmt.draw(buf, titleRc, -1, -1);

			rc3.top += titleFmt.getHeight() + rc.height() / 20;
			rc3.bottom = rc3.top + rc.height() / 40;
			buf.FillRect(rc3, 0x40FFFFFF);
		}

		if (!seriesName.empty()) {
			lvRect seriesRc(rc);
			seriesRc.top += rc.height() * 8 / 10;
			//seriesRc.bottom = rc.top + rc.height() * 9 / 10;
			SimpleTitleFormatter seriesFmt(seriesName, fontFace, false, true, seriesColor, seriesRc.width(), seriesRc.height());
			seriesFmt.draw(buf, seriesRc, 1, 0);
		}

	}
}