mirror of
https://invent.kde.org/graphics/okular
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111 lines
3.7 KiB
C++
111 lines
3.7 KiB
C++
/***************************************************************************
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* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
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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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#ifndef _KPDF_PRESENTATIONWIDGET_H_
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#define _KPDF_PRESENTATIONWIDGET_H_
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#include <qdialog.h>
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#include <qlist.h>
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#include <qpixmap.h>
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#include <qstringlist.h>
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#include "core/observer.h"
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#include "core/pagetransition.h"
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class QLineEdit;
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class QToolBar;
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class QTimer;
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class KActionCollection;
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class KPDFDocument;
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class KPDFPage;
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class KPDFLink;
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class PresentationFrame;
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/**
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* @short A widget that shows pages as fullscreen slides (with transitions fx).
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*
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* This is a fullscreen widget that displays
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*/
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class PresentationWidget : public QDialog, public DocumentObserver
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{
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Q_OBJECT
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public:
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PresentationWidget( QWidget * parent, KPDFDocument * doc );
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~PresentationWidget();
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// inherited from DocumentObserver
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uint observerId() const { return PRESENTATION_ID; }
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void notifySetup( const QVector< KPDFPage * > & pages, bool documentChanged );
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void notifyViewportChanged( bool smoothMove );
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void notifyPageChanged( int pageNumber, int changedFlags );
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bool canUnloadPixmap( int pageNumber );
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// create actions that interact with this widget
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void setupActions( KActionCollection * collection );
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protected:
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// widget events
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bool event( QEvent * e );
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void keyPressEvent( QKeyEvent * e );
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void wheelEvent( QWheelEvent * e );
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void mousePressEvent( QMouseEvent * e );
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void mouseReleaseEvent( QMouseEvent * e );
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void mouseMoveEvent( QMouseEvent * e );
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void paintEvent( QPaintEvent * e );
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private:
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const KPDFLink * getLink( int x, int y, QRect * geometry = 0 ) const;
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void testCursorOnLink( int x, int y );
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void overlayClick( const QPoint & position );
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void changePage( int newPage );
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void generatePage();
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void generateIntroPage( QPainter & p );
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void generateContentsPage( int page, QPainter & p );
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void generateOverlay();
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void initTransition( const KPDFPageTransition *transition );
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const KPDFPageTransition defaultTransition() const;
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const KPDFPageTransition defaultTransition( int ) const;
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// cache stuff
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int m_width;
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int m_height;
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QPixmap m_lastRenderedPixmap;
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QPixmap m_lastRenderedOverlay;
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QRect m_overlayGeometry;
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const KPDFLink * m_pressedLink;
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bool m_handCursor;
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// transition related
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QTimer * m_transitionTimer;
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QTimer * m_overlayHideTimer;
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int m_transitionDelay;
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int m_transitionMul;
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QList< QRect > m_transitionRects;
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// misc stuff
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KPDFDocument * m_document;
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QVector< PresentationFrame * > m_frames;
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int m_frameIndex;
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QStringList m_metaStrings;
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QToolBar * m_topBar;
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QLineEdit *m_pagesEdit;
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KActionCollection * m_ac;
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private slots:
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void slotNextPage();
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void slotPrevPage();
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void slotFirstPage();
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void slotLastPage();
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void slotHideOverlay();
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void slotTransitionStep();
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void slotDelayedEvents();
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void slotPageChanged();
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};
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#endif
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