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/***************************************************************************
* Copyright (C) 2004 by Enrico Ros <[email protected]> *
* *
* 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 <qdialog.h>
#include <qpixmap.h>
#include <qstringlist.h>
#include <qvaluevector.h>
#include "core/observer.h"
#include "core/pagetransition.h"
class KAccel;
class KActionCollection;
class KToolBar;
class QTimer;
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 QDialog, public DocumentObserver
{
Q_OBJECT
public:
PresentationWidget( QWidget * parent, KPDFDocument * doc );
~PresentationWidget();
void setupActions( KActionCollection * ac );
// inherited from DocumentObserver
uint observerId() const { return PRESENTATION_ID; }
void notifySetup( const QValueVector< KPDFPage * > & pages, bool documentChanged );
void notifyViewportChanged( bool smoothMove );
void notifyPageChanged( int pageNumber, int changedFlags );
bool canUnloadPixmap( int pageNumber );
protected:
// widget events
// bool event( QEvent * e );
void keyPressEvent( QKeyEvent * e );
void wheelEvent( QWheelEvent * e );
void mousePressEvent( QMouseEvent * e );
void mouseReleaseEvent( QMouseEvent * e );
void mouseMoveEvent( QMouseEvent * e );
void paintEvent( QPaintEvent * e );
private:
const KPDFLink * getLink( int x, int y, QRect * geometry = 0 ) const;
void testCursorOnLink( int x, int y );
void overlayClick( const QPoint & position );
void changePage( int newPage );
void generatePage();
void generateIntroPage( QPainter & p );
void generateContentsPage( int page, QPainter & 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;
QPixmap m_lastRenderedPixmap;
QPixmap m_lastRenderedOverlay;
QRect m_overlayGeometry;
const KPDFLink * m_pressedLink;
bool m_handCursor;
// transition related
QTimer * m_transitionTimer;
QTimer * m_overlayHideTimer;
QTimer * m_nextPageTimer;
int m_transitionDelay;
int m_transitionMul;
QValueList< QRect > m_transitionRects;
// misc stuff
KPDFDocument * m_document;
QValueVector< PresentationFrame * > m_frames;
int m_frameIndex;
QStringList 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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