mirror of
https://invent.kde.org/graphics/okular
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ab5fd168d6
@style: kebase/kicker/HACKING. svn path=/branches/kpdf_experiments/kdegraphics/kpdf/; revision=361181
268 lines
7.5 KiB
C++
268 lines
7.5 KiB
C++
/***************************************************************************
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* Copyright (C) 2003-2004 by Christophe Devriese *
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* <Christophe.Devriese@student.kuleuven.ac.be> *
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* Copyright (C) 2003 by Andy Goossens <andygoossens@telenet.be> *
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* Copyright (C) 2003 by Scott Wheeler <wheeler@kde.org> *
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* Copyright (C) 2003 by Ingo Klöcker <kloecker@kde.org> *
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* Copyright (C) 2003 by Will Andrews <will@csociety.org> *
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* Copyright (C) 2004 by Dominique Devriese <devriese@kde.org> *
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* Copyright (C) 2004 by Waldo Bastian <bastian@kde.org> *
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* Copyright (C) 2004 by Albert Astals Cid <tsdgeos@terra.es> *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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***************************************************************************/
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#ifdef __GNUC__
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#pragma implementation
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#endif
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#include <kdebug.h>
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#include <qpixmap.h>
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#include <qimage.h>
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#include "page.h"
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#include "GfxState.h"
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#include "SplashBitmap.h"
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#include "TextOutputDev.h"
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#include "QOutputDev.h"
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// NOTE: XPDF/Splash implementation dependant code will be marked with '###'
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// BEGIN KPDFOutputDev
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KPDFOutputDev::KPDFOutputDev( SplashColor paperColor )
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: SplashOutputDev( splashModeRGB8, false, paperColor ), m_pixmap( 0 ), m_text( 0 )
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{
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}
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KPDFOutputDev::~KPDFOutputDev()
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{
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clear();
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}
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void KPDFOutputDev::setParams( int width, int height, bool genT, bool genL, bool genAR )
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{
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clear();
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m_pixmapWidth = width;
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m_pixmapHeight = height;
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m_generateText = genT;
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m_generateLinks = genL;
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m_generateActiveRects = genAR;
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if ( m_generateText )
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m_text = new TextPage( gFalse );
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}
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QPixmap * KPDFOutputDev::takePixmap()
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{
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QPixmap * pix = m_pixmap;
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m_pixmap = 0;
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return pix;
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}
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TextPage * KPDFOutputDev::takeTextPage()
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{
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TextPage * text = m_text;
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m_text = 0;
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return text;
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}
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QValueList< KPDFLink * > KPDFOutputDev::takeLinks()
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{
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QValueList< KPDFLink * > linksCopy( m_links );
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m_links.clear();
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return linksCopy;
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}
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QValueList< KPDFActiveRect * > KPDFOutputDev::takeActiveRects()
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{
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QValueList< KPDFActiveRect * > rectsCopy( m_rects );
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m_rects.clear();
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return rectsCopy;
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}
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void KPDFOutputDev::startPage( int pageNum, GfxState *state )
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{
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if ( m_generateText )
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m_text->startPage( state );
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SplashOutputDev::startPage( pageNum, state );
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}
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void KPDFOutputDev::endPage()
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{
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SplashOutputDev::endPage();
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if ( m_generateText )
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m_text->coalesce( gTrue );
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// create a QPixmap from page data
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delete m_pixmap;
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int bh = getBitmap()->getHeight(),
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bw = getBitmap()->getWidth();
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SplashColorPtr dataPtr = getBitmap()->getDataPtr();
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QImage * img = new QImage( (uchar*)dataPtr.rgb8, bw, bh, 32, 0, 0, QImage::IgnoreEndian );
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// it may happen (in fact it doesn't) that we need rescaling
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if ( bw != m_pixmapWidth || bh != m_pixmapHeight )
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m_pixmap = new QPixmap( img->smoothScale( m_pixmapWidth, m_pixmapHeight ) );
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else
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m_pixmap = new QPixmap( *img );
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delete img;
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// ### hack: unload memory used by internal SplashOutputDev's bitmap
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SplashOutputDev::startPage( 0, NULL );
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}
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void KPDFOutputDev::drawLink( Link * link, Catalog * catalog )
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{
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if ( !link->isOk() )
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return;
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if ( m_generateLinks )
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{
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// create the new KPDFLink ...
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KPDFLink * l = new KPDFLink( link->getAction() );
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double x1, y1, x2, y2;
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link->getRect( &x1, &y1, &x2, &y2 );
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int left, top, right, bottom;
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cvtUserToDev( x1, y1, &left, &top );
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cvtUserToDev( x2, y2, &right, &bottom );
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// ... and assign its coords withing current page geometry
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l->setGeometry( left, top, right, bottom );
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// add the link to the vector container
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m_links.push_back( l );
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}
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SplashOutputDev::drawLink( link, catalog );
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}
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void KPDFOutputDev::updateFont( GfxState *state )
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{
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if ( m_generateText )
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m_text->updateFont( state );
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SplashOutputDev::updateFont( state );
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}
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void KPDFOutputDev::drawChar( GfxState *state, double x, double y, double dx, double dy, double originX, double originY, CharCode code, Unicode *u, int uLen )
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{
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if ( m_generateText )
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m_text->addChar( state, x, y, dx, dy, code, u, uLen );
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SplashOutputDev::drawChar( state, x, y, dx, dy, originX, originY, code, u, uLen );
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}
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GBool KPDFOutputDev::beginType3Char( GfxState *state, double x, double y, double dx, double dy, CharCode code, Unicode *u, int uLen )
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{
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if ( m_generateText )
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m_text->addChar( state, x, y, dx, dy, code, u, uLen );
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return SplashOutputDev::beginType3Char( state, x, y, dx, dy, code, u, uLen );
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}
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void KPDFOutputDev::drawImage( GfxState *state, Object *ref, Stream *str,
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int _width, int _height, GfxImageColorMap *colorMap, int *maskColors, GBool inlineImg )
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{
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if ( m_generateActiveRects )
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{
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// find out image rect from the Coord Transform Matrix
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double * ctm = state->getCTM();
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int left = (int)ctm[4],
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top = (int)ctm[5],
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width = (int)ctm[0],
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height = (int)ctm[3];
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// normalize width
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if ( width < 0 )
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{
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width = -width;
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left -= width;
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}
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// normalize height
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if ( height < 0 )
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{
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height = -height;
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top -= height;
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}
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if ( width > 10 && height > 10 )
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{
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KPDFActiveRect * r = new KPDFActiveRect( left, top, width, height );
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// add the rect to the vector container
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m_rects.push_back( r );
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}
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}
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SplashOutputDev::drawImage( state, ref, str, _width, _height, colorMap, maskColors, inlineImg );
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}
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void KPDFOutputDev::clear()
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{
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// delete links
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if ( m_links.count() )
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{
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QValueList< KPDFLink * >::iterator it = m_links.begin(), end = m_links.end();
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for ( ; it != end; ++it )
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delete *it;
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m_links.clear();
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}
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// delete activerects
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if ( m_rects.count() )
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{
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QValueList< KPDFActiveRect * >::iterator it = m_rects.begin(), end = m_rects.end();
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for ( ; it != end; ++it )
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delete *it;
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m_rects.clear();
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}
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// delete pixmap
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if ( m_pixmap )
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{
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delete m_pixmap;
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m_pixmap = 0;
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}
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// delete text
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if ( m_text )
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{
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delete m_text;
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m_text = 0;
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}
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}
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// END KPDFOutputDev
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// BEGIN KPDFTextDev
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KPDFTextDev::KPDFTextDev()
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{
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m_text = new TextPage( gFalse );
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}
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KPDFTextDev::~KPDFTextDev()
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{
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delete m_text;
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}
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TextPage * KPDFTextDev::takeTextPage()
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{
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TextPage * t = m_text;
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m_text = 0;
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return t;
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}
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void KPDFTextDev::startPage( int, GfxState *state )
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{
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if ( !m_text )
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m_text = new TextPage( gFalse );
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m_text->startPage( state );
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}
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void KPDFTextDev::endPage()
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{
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m_text->endPage();
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m_text->coalesce( gTrue );
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}
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void KPDFTextDev::updateFont( GfxState *state )
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{
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m_text->updateFont( state );
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}
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void KPDFTextDev::drawChar( GfxState *state, double x, double y, double dx, double dy, double /*originX*/, double /*originY*/, CharCode code, Unicode *u, int uLen )
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{
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m_text->addChar( state, x, y, dx, dy, code, u, uLen );
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}
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// END KPDFTextDev
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