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/***************************************************************************
* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
#ifndef _KPDF_PRESENTATIONWIDGET_H_
#define _KPDF_PRESENTATIONWIDGET_H_
#include <tqdialog.h>
#include <tqpixmap.h>
#include <tqstringlist.h>
#include <tqvaluevector.h>
#include "core/observer.h"
#include "core/pagetransition.h"
class KAccel;
class KActionCollection;
class KToolBar;
class TQTimer;
class KPDFDocument;
class KPDFPage;
class KPDFLink;
class PresentationFrame;
/**
* @short A widget that shows pages as fullscreen slides (with transitions fx).
*
* This is a fullscreen widget that displays
*/
class PresentationWidget : public TQDialog, public DocumentObserver
{
Q_OBJECT
public:
PresentationWidget( TQWidget * parent, KPDFDocument * doc );
~PresentationWidget();
void setupActions( KActionCollection * ac );
// inherited from DocumentObserver
uint observerId() const { return PRESENTATION_ID; }
void notifySetup( const TQValueVector< KPDFPage * > & pages, bool documentChanged );
void notifyViewportChanged( bool smoothMove );
void notifyPageChanged( int pageNumber, int changedFlags );
bool canUnloadPixmap( int pageNumber );
protected:
// widget events
// bool event( TQEvent * e );
void keyPressEvent( TQKeyEvent * e );
void wheelEvent( TQWheelEvent * e );
void mousePressEvent( TQMouseEvent * e );
void mouseReleaseEvent( TQMouseEvent * e );
void mouseMoveEvent( TQMouseEvent * e );
void paintEvent( TQPaintEvent * e );
private:
const KPDFLink * getLink( int x, int y, TQRect * geometry = 0 ) const;
void testCursorOnLink( int x, int y );
void overlayClick( const TQPoint & position );
void changePage( int newPage );
void generatePage();
void generateIntroPage( TQPainter & p );
void generateContentsPage( int page, TQPainter & p );
void generateOverlay();
void initTransition( const KPDFPageTransition *transition );
const KPDFPageTransition defaultTransition() const;
const KPDFPageTransition defaultTransition( int ) const;
// cache stuff
int m_width;
int m_height;
TQPixmap m_lastRenderedPixmap;
TQPixmap m_lastRenderedOverlay;
TQRect m_overlayGeometry;
const KPDFLink * m_pressedLink;
bool m_handCursor;
// transition related
TQTimer * m_transitionTimer;
TQTimer * m_overlayHideTimer;
TQTimer * m_nextPageTimer;
int m_transitionDelay;
int m_transitionMul;
TQValueList< TQRect > m_transitionRects;
// misc stuff
KPDFDocument * m_document;
TQValueVector< PresentationFrame * > m_frames;
int m_frameIndex;
TQStringList m_metaStrings;
KToolBar * m_topBar;
KAccel * m_accel;
private slots:
void slotNextPage();
void slotPrevPage();
void slotFirstPage();
void slotLastPage();
void slotHideOverlay();
void slotTransitionStep();
};
#endif
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