File indexing completed on 2024-05-12 16:36:50

 /* This file is part of the KDE project
  * Copyright (C) 2007-2008 Thorsten Zachmann <zachmann@kde.org>
  * Copyright (C) 2008 Fredy Yanardi <fyanardi@kde.org>
  * Copyright (C) 2008 C. Boemann <cbo@boemann.dk>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (  at your option ) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "KPrViewModePreviewPageEffect.h"
 
 #include <QEvent>
 #include <QKeyEvent>
 #include <QPainter>
 #include <QDesktopWidget>
 
 #include <KoPointerEvent.h>
 #include <KoPageApp.h>
 #include <KoPACanvasBase.h>
 #include <KoPAViewBase.h>
 #include <KoZoomHandler.h>
 
 #include "StageDebug.h"
 #include "KPrDocument.h"
 #include "KPrEndOfSlideShowPage.h"
 #include "KPrPage.h"
 #include "pageeffects/KPrPageEffect.h"
 #include "pageeffects/KPrPageEffectRunner.h"
 
 KPrViewModePreviewPageEffect::KPrViewModePreviewPageEffect( KoPAViewBase * view, KoPACanvasBase * canvas )
 : KoPAViewMode( view, canvas )
 , m_savedViewMode(0)
 , m_pageEffect(0)
 , m_pageEffectRunner(0)
 , m_page(0)
 , m_prevpage(0)
 {
     connect( &m_timeLine, SIGNAL(valueChanged(qreal)), this, SLOT(animate()) );
     connect( &m_timeLine, SIGNAL(finished()), this, SLOT(activateSavedViewMode()) );
 }
 
 KPrViewModePreviewPageEffect::~KPrViewModePreviewPageEffect()
 {
 }
 
 
 void KPrViewModePreviewPageEffect::paint(KoPACanvasBase* canvas, QPainter& painter, const QRectF &paintRect)
 {
     Q_UNUSED(canvas);
     Q_UNUSED(paintRect);
     //QRect framerect = canvas->rect();
 
     if (m_pageEffectRunner && m_timeLine.state() == QTimeLine::Running) {
         m_pageEffectRunner->paint(painter);
     }
 }
 
 
 void KPrViewModePreviewPageEffect::tabletEvent( QTabletEvent *event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 
 void KPrViewModePreviewPageEffect::mousePressEvent( QMouseEvent *event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 
 void KPrViewModePreviewPageEffect::mouseDoubleClickEvent( QMouseEvent *event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 
 void KPrViewModePreviewPageEffect::mouseMoveEvent( QMouseEvent *event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 
 void KPrViewModePreviewPageEffect::mouseReleaseEvent( QMouseEvent *event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 void KPrViewModePreviewPageEffect::shortcutOverrideEvent( QKeyEvent *event )
 {
     Q_UNUSED(event);
 }
 
 void KPrViewModePreviewPageEffect::keyPressEvent( QKeyEvent *event )
 {
     Q_UNUSED(event);
 }
 
 
 void KPrViewModePreviewPageEffect::keyReleaseEvent( QKeyEvent *event )
 {
     Q_UNUSED(event);
 }
 
 
 void KPrViewModePreviewPageEffect::wheelEvent( QWheelEvent * event, const QPointF &point )
 {
     Q_UNUSED(event);
     Q_UNUSED(point);
 }
 
 
 void KPrViewModePreviewPageEffect::activate( KoPAViewMode * previousViewMode )
 {
     m_savedViewMode = previousViewMode;               // store the previous view mode
 
     // the update of the canvas is needed so that the old page gets drawn fully before the effect starts
     canvas()->repaint();
     m_timeLine.setDuration( m_pageEffect->duration() );
     m_timeLine.setCurrentTime( 0 );
     m_timeLine.start();
 }
 
 
 void KPrViewModePreviewPageEffect::deactivate()
 {
     m_savedViewMode = 0;               // store the previous view mode
 }
 
 
 void KPrViewModePreviewPageEffect::updateActivePage( KoPAPageBase *page )
 {
     m_view->setActivePage( page );
 }
 
 
 void KPrViewModePreviewPageEffect::activateSavedViewMode()
 {
     m_view->setViewMode( m_savedViewMode );
     //canvas()->update();
 }
 
 
 void KPrViewModePreviewPageEffect::setPageEffect( KPrPageEffect* pageEffect, KPrPage* page, KPrPage* prevpage )
 {
     if(m_savedViewMode) {//stop the previous playing
         activateSavedViewMode();
     }
 
     delete m_pageEffect;
     m_pageEffect = pageEffect;
     delete m_pageEffectRunner;
     m_pageEffectRunner = 0;
 
     m_page = page;
     m_prevpage = prevpage;
 
     if(m_page) {
         updatePixmaps();
 
         if(m_pageEffect) {
             m_pageEffectRunner = new KPrPageEffectRunner( m_oldPage, m_newPage, canvas()->canvasWidget(), m_pageEffect );
         }
     }
 }
 
 void KPrViewModePreviewPageEffect::animate()
 {
     if ( m_pageEffectRunner ) {
         m_pageEffectRunner->next( m_timeLine.currentTime() );
     }
 }
 
 void KPrViewModePreviewPageEffect::updatePixmaps()
 {
     if(!m_page)
         return;
 
     QSize size = canvas()->canvasWidget()->size(); // TODO wrong this should be page/document size
 
     m_newPage = m_page->thumbnail(size);
 
     if(m_newPage.isNull())
         return;
 
     if(m_prevpage && m_prevpage != m_page)
     {
         m_oldPage = m_prevpage->thumbnail(size);
     }
     else
     {
         QPixmap oldPage(size);
         oldPage.fill( QColor(Qt::black) );
         m_oldPage = oldPage;
     }
 }