mirror of
https://invent.kde.org/graphics/okular
synced 2024-09-12 20:51:17 +00:00
0c5cd4e01a
Abstracted xpdf's Outline to a Dom Tree. Fixed MERGE tags through the code. Added comments (documentation) to KPDFDocument class and other classes in document.h. Changed a little Generator interface. Moved code from toc.h/.cpp to GeneratorPDF and shrinked a lot. TODO (now): Convert TOC (widget) to use the Dom tree as data source. svn path=/branches/kpdf_experiments/kdegraphics/kpdf/; revision=369914
344 lines
10 KiB
C++
344 lines
10 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 "QOutputDev.h"
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#include "generator_pdf.h"
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#include "page.h"
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#include "link.h"
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#include "xpdf/Link.h"
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#include "xpdf/GfxState.h"
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#include "xpdf/TextOutputDev.h"
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#include "splash/SplashBitmap.h"
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//NOTE: XPDF/Splash *implementation dependant* code is marked with '###'
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//BEGIN KPDFOutputDev
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KPDFOutputDev::KPDFOutputDev( GeneratorPDF * parent, SplashColor paperColor )
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: SplashOutputDev( splashModeRGB8, false, paperColor ), m_pixmap( 0 ),
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m_generator( parent ), 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 genI )
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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_generateImages = genI;
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if ( m_generateText )
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m_text = new TextPage( gFalse );
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}
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KPDFLink * KPDFOutputDev::generateLink( LinkAction * a )
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{
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KPDFLink * link = NULL;
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if ( a ) switch ( a->getKind() )
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{
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case actionGoTo:
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{
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LinkGoTo * g = (LinkGoTo *) a;
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// ceate link: no ext file, namedDest, object pointer
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link = new KPDFLinkGoto( QString::null, m_generator->decodeLinkViewport( g->getNamedDest(), g->getDest() ) );
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}
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break;
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case actionGoToR:
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{
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LinkGoToR * g = (LinkGoToR *) a;
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// copy link file
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const char * fileName = g->getFileName()->getCString();
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// ceate link: fileName, namedDest, object pointer
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link = new KPDFLinkGoto( (QString)fileName, m_generator->decodeLinkViewport( g->getNamedDest(), g->getDest() ) );
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}
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break;
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case actionLaunch:
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{
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LinkLaunch * e = (LinkLaunch *)a;
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GString * p = e->getParams();
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link = new KPDFLinkExecute( e->getFileName()->getCString(), p ? p->getCString() : 0 );
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}
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break;
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case actionNamed:
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{
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const char * name = ((LinkNamed *)a)->getName()->getCString();
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if ( !strcmp( name, "NextPage" ) )
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link = new KPDFLinkAction( KPDFLinkAction::PageNext );
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else if ( !strcmp( name, "PrevPage" ) )
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link = new KPDFLinkAction( KPDFLinkAction::PagePrev );
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else if ( !strcmp( name, "FirstPage" ) )
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link = new KPDFLinkAction( KPDFLinkAction::PageFirst );
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else if ( !strcmp( name, "LastPage" ) )
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link = new KPDFLinkAction( KPDFLinkAction::PageLast );
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else if ( !strcmp( name, "GoBack" ) )
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link = new KPDFLinkAction( KPDFLinkAction::HistoryBack );
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else if ( !strcmp( name, "GoForward" ) )
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link = new KPDFLinkAction( KPDFLinkAction::HistoryForward );
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else if ( !strcmp( name, "Quit" ) )
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link = new KPDFLinkAction( KPDFLinkAction::Quit );
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else
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kdDebug() << "Unknown named action: '" << name << "'" << endl;
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}
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break;
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case actionURI:
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link = new KPDFLinkBrowse( ((LinkURI *)a)->getURI()->getCString() );
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break;
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case actionMovie:
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/* { TODO this
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m_type = Movie;
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LinkMovie * m = (LinkMovie *) a;
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// copy Movie parameters (2 IDs and a const char *)
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Ref * r = m->getAnnotRef();
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m_refNum = r->num;
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m_refGen = r->gen;
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copyString( m_uri, m->getTitle()->getCString() );
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}
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*/ break;
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case actionUnknown:
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kdDebug() << "Unknown link." << endl;
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break;
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}
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// link may be zero at that point
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return link;
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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< KPDFPageRect * > KPDFOutputDev::takeRects()
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{
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QValueList< KPDFPageRect * > 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 link descriptor
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KPDFLink * l = generateLink( link->getAction() );
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if ( l )
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{
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// create the page rect representing the link
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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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KPDFPageRect * rect = new KPDFPageRect( left, top, right, bottom );
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// attach the link object to the rect and add it to the vector container
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rect->setPointer( l, KPDFPageRect::Link );
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m_rects.push_back( rect );
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}
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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_generateImages )
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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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// build a descriptor for the image rect
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KPDFPageRect * r = new KPDFPageRect( left, top, left + width, top + height );
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r->setPointer( 0, KPDFPageRect::Image );
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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 rects
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if ( m_rects.count() )
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{
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QValueList< KPDFPageRect * >::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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