mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
708 lines
19 KiB
C++
708 lines
19 KiB
C++
/***************************************************************************
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* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
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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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// qt/kde includes
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#include <QtCore/QSet>
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#include <QtCore/QString>
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#include <QtXml/QDomDocument>
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#include <QtXml/QDomElement>
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#include <kdebug.h>
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#include <QTime>
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// local includes
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#include "annotations.h"
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#include "area.h"
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#include "link.h"
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#include "page.h"
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#include "pagetransition.h"
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#include "rotationjob.h"
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using namespace Okular;
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class TextSelection;
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static void deleteObjectRects( QLinkedList< ObjectRect * >& rects, const QSet<ObjectRect::ObjectType>& which )
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{
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QLinkedList< ObjectRect * >::iterator it = rects.begin(), end = rects.end();
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for ( ; it != end; )
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if ( which.contains( (*it)->objectType() ) )
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{
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delete *it;
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it = rects.erase( it );
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}
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else
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++it;
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}
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class Page::Private
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{
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public:
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Private( Page *page, uint n, double w, double h, int o )
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: m_page( page ), m_number( n ), m_orientation( o ),
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m_width( w ), m_height( h ),
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m_rotation( 0 ), m_maxuniqueNum( 0 ),
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m_text( 0 ), m_transition( 0 ),
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m_openingAction( 0 ), m_closingAction( 0 ), duration( -1 )
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{
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// avoid Division-By-Zero problems in the program
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if ( m_width <= 0 )
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m_width = 1;
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if ( m_height <= 0 )
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m_height = 1;
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}
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~Private()
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{
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delete m_text;
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delete m_transition;
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}
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void imageRotationDone();
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QMatrix rotationMatrix() const;
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Page *m_page;
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int m_number;
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int m_orientation;
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double m_width, m_height;
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int m_rotation;
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int m_maxuniqueNum;
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TextPage * m_text;
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PageTransition * m_transition;
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Link * m_openingAction;
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Link * m_closingAction;
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int duration;
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};
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void Page::Private::imageRotationDone()
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{
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RotationJob *job = static_cast<RotationJob*>( m_page->sender() );
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if ( m_page->m_pixmaps.contains( job->id() ) ) {
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PixmapObject &object = m_page->m_pixmaps[ job->id() ];
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(*object.m_pixmap) = QPixmap::fromImage( job->image() );
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object.m_rotation = job->rotation();
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} else {
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PixmapObject object;
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object.m_pixmap = new QPixmap( QPixmap::fromImage( job->image() ) );
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object.m_rotation = job->rotation();
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m_page->m_pixmaps.insert( job->id(), object );
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}
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emit m_page->rotationFinished( m_number );
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job->deleteLater();
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}
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QMatrix Page::Private::rotationMatrix() const
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{
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QMatrix matrix;
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matrix.rotate( m_rotation * 90 );
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if ( m_rotation == 1 ) {
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matrix.translate( 0, -1 );
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} else if ( m_rotation == 2 ) {
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matrix.translate( -1, -1 );
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} else if ( m_rotation == 3 ) {
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matrix.translate( -1, 0 );
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}
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return matrix;
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}
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/** class Page **/
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Page::Page( uint page, double w, double h, int o )
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: QObject( 0 ), d( new Private( this, page, w, h, o ) ),
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m_textSelections( 0 )
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{
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}
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Page::~Page()
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{
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deletePixmaps();
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deleteRects();
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deleteHighlights();
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deleteAnnotations();
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deleteTextSelections();
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deleteSourceReferences();
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delete d;
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}
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int Page::number() const
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{
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return d->m_number;
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}
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int Page::orientation() const
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{
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return d->m_orientation;
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}
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int Page::rotation() const
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{
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return d->m_rotation;
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}
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int Page::totalOrientation() const
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{
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return ( d->m_orientation + d->m_rotation ) % 4;
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}
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double Page::width() const
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{
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return d->m_width;
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}
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double Page::height() const
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{
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return d->m_height;
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}
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double Page::ratio() const
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{
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return d->m_height / d->m_width;
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}
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bool Page::hasPixmap( int id, int width, int height ) const
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{
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QMap< int, PixmapObject >::const_iterator it = m_pixmaps.find( id );
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if ( it == m_pixmaps.end() )
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return false;
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if ( width == -1 || height == -1 )
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return true;
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const QPixmap *pixmap = it.value().m_pixmap;
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return (pixmap->width() == width && pixmap->height() == height);
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}
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bool Page::hasTextPage() const
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{
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return d->m_text != 0;
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}
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RegularAreaRect * Page::textArea ( TextSelection * selection ) const
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{
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if ( d->m_text )
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return d->m_text->textArea( selection );
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return 0;
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}
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bool Page::hasObjectRect( double x, double y, double xScale, double yScale ) const
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{
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if ( m_rects.isEmpty() )
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return false;
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QLinkedList< ObjectRect * >::const_iterator it = m_rects.begin(), end = m_rects.end();
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for ( ; it != end; ++it )
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if ( (*it)->contains( x, y, xScale, yScale ) )
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return true;
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return false;
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}
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bool Page::hasHighlights( int s_id ) const
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{
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// simple case: have no highlights
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if ( m_highlights.isEmpty() )
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return false;
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// simple case: we have highlights and no id to match
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if ( s_id == -1 )
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return true;
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// iterate on the highlights list to find an entry by id
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QLinkedList< HighlightAreaRect * >::const_iterator it = m_highlights.begin(), end = m_highlights.end();
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for ( ; it != end; ++it )
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if ( (*it)->s_id == s_id )
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return true;
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return false;
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}
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bool Page::hasTransition() const
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{
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return d->m_transition != 0;
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}
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bool Page::hasAnnotations() const
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{
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return !m_annotations.isEmpty();
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}
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RegularAreaRect * Page::findText( int id, const QString & text, SearchDirection direction,
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Qt::CaseSensitivity caseSensitivity, const RegularAreaRect *lastRect ) const
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{
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RegularAreaRect* rect = 0;
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if ( text.isEmpty() )
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return rect;
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rect = d->m_text->findText( id, text, direction, caseSensitivity, lastRect );
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return rect;
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}
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QString Page::text( const RegularAreaRect * area ) const
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{
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QString ret;
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if ( !d->m_text )
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return ret;
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RegularAreaRect rotatedArea = *area;
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rotatedArea.transform( d->rotationMatrix().inverted() );
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ret = d->m_text->text( &rotatedArea );
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return ret;
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}
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void Page::rotateAt( int orientation )
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{
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int neworientation = orientation % 4;
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if ( neworientation == d->m_rotation )
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return;
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deleteHighlights();
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deleteTextSelections();
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if ( ( d->m_orientation + d->m_rotation ) % 2 != ( d->m_orientation + neworientation ) % 2 )
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qSwap( d->m_width, d->m_height );
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d->m_rotation = neworientation;
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QMap< int, RotationJob::Rotation > rotationMap;
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rotationMap.insert( 0, RotationJob::Rotation0 );
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rotationMap.insert( 1, RotationJob::Rotation90 );
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rotationMap.insert( 2, RotationJob::Rotation180 );
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rotationMap.insert( 3, RotationJob::Rotation270 );
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/**
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* Rotate the images of the page.
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*/
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QMapIterator< int, PixmapObject > it( m_pixmaps );
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while ( it.hasNext() ) {
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it.next();
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const PixmapObject &object = m_pixmaps[ it.key() ];
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RotationJob::Rotation newRotation = rotationMap[ d->m_rotation ];
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RotationJob::Rotation oldRotation = rotationMap[ object.m_rotation ];
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RotationJob *job = new RotationJob( object.m_pixmap->toImage(), oldRotation, newRotation, it.key() );
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connect( job, SIGNAL( finished() ), this, SLOT( imageRotationDone() ) );
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job->start();
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}
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/**
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* Rotate the object rects on the page.
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*/
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const QMatrix matrix = d->rotationMatrix();
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QLinkedList< ObjectRect * >::const_iterator objectIt = m_rects.begin(), end = m_rects.end();
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for ( ; objectIt != end; ++objectIt )
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(*objectIt)->transform( matrix );
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}
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const ObjectRect * Page::objectRect( ObjectRect::ObjectType type, double x, double y, double xScale, double yScale ) const
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{
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QLinkedList< ObjectRect * >::const_iterator it = m_rects.begin(), end = m_rects.end();
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for ( ; it != end; ++it )
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if ( ( (*it)->objectType() == type ) && (*it)->contains( x, y, xScale, yScale ) )
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return *it;
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return 0;
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}
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const PageTransition * Page::transition() const
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{
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return d->m_transition;
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}
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const QLinkedList< Annotation* > Page::annotations() const
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{
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return m_annotations;
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}
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const Link * Page::pageAction( PageAction action ) const
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{
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switch ( action )
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{
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case Page::Opening:
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return d->m_openingAction;
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break;
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case Page::Closing:
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return d->m_closingAction;
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break;
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}
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return 0;
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}
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void Page::setPixmap( int id, QPixmap *pixmap )
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{
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if ( d->m_rotation == 0 ) {
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PixmapObject object;
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object.m_pixmap = pixmap;
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object.m_rotation = d->m_rotation;
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m_pixmaps[ id ] = object;
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} else {
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static QMap< int, RotationJob::Rotation > rotationMap;
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if ( rotationMap.isEmpty() ) {
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rotationMap.insert( 0, RotationJob::Rotation0 );
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rotationMap.insert( 1, RotationJob::Rotation90 );
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rotationMap.insert( 2, RotationJob::Rotation180 );
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rotationMap.insert( 3, RotationJob::Rotation270 );
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}
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RotationJob *job = new RotationJob( pixmap->toImage(), RotationJob::Rotation0, rotationMap[ d->m_rotation ], id );
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connect( job, SIGNAL( finished() ), this, SLOT( imageRotationDone() ) );
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job->start();
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delete pixmap;
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}
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}
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void Page::setTextPage( TextPage * textPage )
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{
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delete d->m_text;
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d->m_text = textPage;
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}
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void Page::setObjectRects( const QLinkedList< ObjectRect * > rects )
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{
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QSet<ObjectRect::ObjectType> which;
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which << ObjectRect::Link << ObjectRect::Image;
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deleteObjectRects( m_rects, which );
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/**
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* Rotate the object rects of the page.
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*/
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const QMatrix matrix = d->rotationMatrix();
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QLinkedList< ObjectRect * >::const_iterator objectIt = rects.begin(), end = rects.end();
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for ( ; objectIt != end; ++objectIt )
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(*objectIt)->transform( matrix );
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m_rects << rects;
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}
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void Page::setHighlight( int s_id, RegularAreaRect *rect, const QColor & color )
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{
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HighlightAreaRect * hr = new HighlightAreaRect(rect);
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hr->s_id = s_id;
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hr->color = color;
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m_highlights.append( hr );
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}
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void Page::setTextSelections( RegularAreaRect *r, const QColor & color )
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{
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deleteTextSelections();
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HighlightAreaRect * hr = new HighlightAreaRect( r );
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hr->s_id = -1;
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hr->color = color;
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m_textSelections = hr;
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}
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void Page::setSourceReferences( const QLinkedList< SourceRefObjectRect * > refRects )
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{
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deleteSourceReferences();
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foreach( SourceRefObjectRect * rect, refRects )
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m_rects << rect;
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}
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void Page::setDuration( int seconds )
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{
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d->duration = seconds;
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}
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int Page::duration() const
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{
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return d->duration;
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}
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const RegularAreaRect * Page::textSelection() const
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{
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return m_textSelections;
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}
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void Page::addAnnotation( Annotation * annotation )
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{
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//uniqueName: okular-PAGENUM-ID
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if(annotation->uniqueName().isEmpty())
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{
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QString uniqueName = "okular-";
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uniqueName += ( QString::number(d->m_number) + '-' + QString::number(++(d->m_maxuniqueNum)) );
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kDebug()<<"astario: inc m_maxuniqueNum="<<d->m_maxuniqueNum<<endl;
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annotation->setUniqueName( uniqueName );
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}
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m_annotations.append( annotation );
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AnnotationObjectRect *rect = new AnnotationObjectRect( annotation );
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/**
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* Rotate the annotation on the page.
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*/
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const QMatrix matrix = d->rotationMatrix();
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rect->transform( matrix );
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m_rects.append( rect );
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}
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void Page::modifyAnnotation(Annotation * newannotation )
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{
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if(!newannotation)
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return;
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QLinkedList< Annotation * >::iterator aIt = m_annotations.begin(), aEnd = m_annotations.end();
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for ( ; aIt != aEnd; ++aIt )
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{
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if((*aIt)==newannotation)
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return; //modified already
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if((*aIt) && (*aIt)->uniqueName()==newannotation->uniqueName())
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{
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int rectfound = false;
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QLinkedList< ObjectRect * >::iterator it = m_rects.begin(), end = m_rects.end();
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for ( ; it != end && !rectfound; ++it )
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if ( ( (*it)->objectType() == ObjectRect::OAnnotation ) && ( (*it)->pointer() == (*aIt) ) )
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{
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delete *it;
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*it = new AnnotationObjectRect( newannotation );
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rectfound = true;
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}
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delete *aIt;
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*aIt = newannotation;
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break;
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}
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}
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}
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bool Page::removeAnnotation( Annotation * annotation )
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{
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if ( !annotation || ( annotation->flags() & Annotation::DenyDelete ) )
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return false;
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QLinkedList< Annotation * >::iterator aIt = m_annotations.begin(), aEnd = m_annotations.end();
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for ( ; aIt != aEnd; ++aIt )
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{
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if((*aIt) && (*aIt)->uniqueName()==annotation->uniqueName())
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{
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int rectfound = false;
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QLinkedList< ObjectRect * >::iterator it = m_rects.begin(), end = m_rects.end();
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for ( ; it != end && !rectfound; ++it )
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if ( ( (*it)->objectType() == ObjectRect::OAnnotation ) && ( (*it)->pointer() == (*aIt) ) )
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{
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delete *it;
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it = m_rects.erase( it );
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rectfound = true;
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}
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kDebug() << "removed annotation: " << annotation->uniqueName() << endl;
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delete *aIt;
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m_annotations.erase( aIt );
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break;
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}
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}
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return true;
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}
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void Page::setTransition( PageTransition * transition )
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{
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delete d->m_transition;
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d->m_transition = transition;
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}
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void Page::setPageAction( PageAction action, Link * link )
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{
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switch ( action )
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{
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case Page::Opening:
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d->m_openingAction = link;
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break;
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case Page::Closing:
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d->m_closingAction = link;
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break;
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}
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}
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void Page::deletePixmap( int id )
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{
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PixmapObject object = m_pixmaps.take( id );
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delete object.m_pixmap;
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}
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void Page::deletePixmaps()
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{
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QMapIterator< int, PixmapObject > it( m_pixmaps );
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while ( it.hasNext() ) {
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it.next();
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delete it.value().m_pixmap;
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}
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m_pixmaps.clear();
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}
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void Page::deleteRects()
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{
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// delete ObjectRects of type Link and Image
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QSet<ObjectRect::ObjectType> which;
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which << ObjectRect::Link << ObjectRect::Image;
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deleteObjectRects( m_rects, which );
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}
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void Page::deleteHighlights( int s_id )
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{
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// delete highlights by ID
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QLinkedList< HighlightAreaRect* >::iterator it = m_highlights.begin(), end = m_highlights.end();
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while ( it != end )
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{
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HighlightAreaRect* highlight = *it;
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if ( s_id == -1 || highlight->s_id == s_id )
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{
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|
it = m_highlights.erase( it );
|
|
delete highlight;
|
|
}
|
|
else
|
|
++it;
|
|
}
|
|
}
|
|
|
|
void Page::deleteTextSelections()
|
|
{
|
|
delete m_textSelections;
|
|
m_textSelections = 0;
|
|
}
|
|
|
|
void Page::deleteSourceReferences()
|
|
{
|
|
deleteObjectRects( m_rects, QSet<ObjectRect::ObjectType>() << ObjectRect::SourceRef );
|
|
}
|
|
|
|
void Page::deleteAnnotations()
|
|
{
|
|
// delete ObjectRects of type Annotation
|
|
deleteObjectRects( m_rects, QSet<ObjectRect::ObjectType>() << ObjectRect::OAnnotation );
|
|
// delete all stored annotations
|
|
QLinkedList< Annotation * >::const_iterator aIt = m_annotations.begin(), aEnd = m_annotations.end();
|
|
for ( ; aIt != aEnd; ++aIt )
|
|
delete *aIt;
|
|
m_annotations.clear();
|
|
}
|
|
|
|
void Page::restoreLocalContents( const QDomNode & pageNode )
|
|
{
|
|
// iterate over all chilren (annotationList, ...)
|
|
QDomNode childNode = pageNode.firstChild();
|
|
while ( childNode.isElement() )
|
|
{
|
|
QDomElement childElement = childNode.toElement();
|
|
childNode = childNode.nextSibling();
|
|
|
|
// parse annotationList child element
|
|
if ( childElement.tagName() == "annotationList" )
|
|
{
|
|
QTime time;
|
|
time.start();
|
|
|
|
// iterate over all annotations
|
|
QDomNode annotationNode = childElement.firstChild();
|
|
while( annotationNode.isElement() )
|
|
{
|
|
// get annotation element and advance to next annot
|
|
QDomElement annotElement = annotationNode.toElement();
|
|
annotationNode = annotationNode.nextSibling();
|
|
|
|
// get annotation from the dom element
|
|
Annotation * annotation = AnnotationUtils::createAnnotation( annotElement );
|
|
|
|
// append annotation to the list or show warning
|
|
if ( annotation )
|
|
{
|
|
m_annotations.append( annotation );
|
|
m_rects.append( new AnnotationObjectRect( annotation ) );
|
|
int pos = annotation->uniqueName().lastIndexOf("-");
|
|
if(pos != -1)
|
|
{
|
|
int uniqID=annotation->uniqueName().right(annotation->uniqueName().length()-pos-1).toInt();
|
|
if(d->m_maxuniqueNum<uniqID)
|
|
d->m_maxuniqueNum=uniqID;
|
|
}
|
|
|
|
kDebug()<<"astario: restored annot:"<<annotation->uniqueName()<<endl;
|
|
}
|
|
else
|
|
kWarning() << "page (" << d->m_number << "): can't restore an annotation from XML." << endl;
|
|
}
|
|
kDebug() << "annots: XML Load time: " << time.elapsed() << "ms" << endl;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Page::saveLocalContents( QDomNode & parentNode, QDomDocument & document )
|
|
{
|
|
// only add a node if there is some stuff to write into
|
|
if ( m_annotations.isEmpty() )
|
|
return;
|
|
|
|
// create the page node and set the 'number' attribute
|
|
QDomElement pageElement = document.createElement( "page" );
|
|
pageElement.setAttribute( "number", d->m_number );
|
|
|
|
#if 0
|
|
// add bookmark info if is bookmarked
|
|
if ( d->m_bookmarked )
|
|
{
|
|
// create the pageElement's 'bookmark' child
|
|
QDomElement bookmarkElement = document.createElement( "bookmark" );
|
|
pageElement.appendChild( bookmarkElement );
|
|
|
|
// add attributes to the element
|
|
//bookmarkElement.setAttribute( "name", bookmark name );
|
|
}
|
|
#endif
|
|
|
|
// add annotations info if has got any
|
|
if ( !m_annotations.isEmpty() )
|
|
{
|
|
// create the annotationList
|
|
QDomElement annotListElement = document.createElement( "annotationList" );
|
|
|
|
// add every annotation to the annotationList
|
|
QLinkedList< Annotation * >::const_iterator aIt = m_annotations.begin(), aEnd = m_annotations.end();
|
|
for ( ; aIt != aEnd; ++aIt )
|
|
{
|
|
// get annotation
|
|
const Annotation * a = *aIt;
|
|
// only save okular annotations (not the embedded in file ones)
|
|
if ( !(a->flags() & Annotation::External) )
|
|
{
|
|
// append an filled-up element called 'annotation' to the list
|
|
QDomElement annElement = document.createElement( "annotation" );
|
|
AnnotationUtils::storeAnnotation( a, annElement, document );
|
|
annotListElement.appendChild( annElement );
|
|
kDebug()<<"astario: save annot:"<<a->uniqueName()<<endl;
|
|
}
|
|
}
|
|
|
|
// append the annotationList element if annotations have been set
|
|
if ( annotListElement.hasChildNodes() )
|
|
pageElement.appendChild( annotListElement );
|
|
}
|
|
|
|
// append the page element only if has children
|
|
if ( pageElement.hasChildNodes() )
|
|
parentNode.appendChild( pageElement );
|
|
}
|
|
|
|
#include "page.moc"
|