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diff --git a/kpdf/ui/presentationwidget.cpp b/kpdf/ui/presentationwidget.cpp
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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. *
+ ***************************************************************************/
+
+// qt/kde includes
+#include <qtimer.h>
+#include <qimage.h>
+#include <qpainter.h>
+#include <qapplication.h>
+#include <qdesktopwidget.h>
+#include <qtooltip.h>
+#include <kaccel.h>
+#include <kactioncollection.h>
+#include <kapplication.h>
+#include <kcursor.h>
+#include <ktoolbar.h>
+#include <kdebug.h>
+#include <klocale.h>
+#include <kiconloader.h>
+#include <kimageeffect.h>
+#include <kmessagebox.h>
+#include <kwin.h>
+
+// system includes
+#include <stdlib.h>
+#include <math.h>
+
+// local includes
+#include "presentationwidget.h"
+#include "pagepainter.h"
+#include "core/generator.h"
+#include "core/page.h"
+#include "core/link.h"
+#include "conf/settings.h"
+
+
+// comment this to disable the top-right progress indicator
+#define ENABLE_PROGRESS_OVERLAY
+
+
+// a frame contains a pointer to the page object, its geometry and the
+// transition effect to the next frame
+struct PresentationFrame
+{
+ const KPDFPage * page;
+ QRect geometry;
+};
+
+
+PresentationWidget::PresentationWidget( QWidget * parent, KPDFDocument * doc )
+ : QDialog( parent, "presentationWidget", true, WDestructiveClose | WStyle_NoBorder),
+ m_pressedLink( 0 ), m_handCursor( false ), m_document( doc ), m_frameIndex( -1 )
+{
+ // set look and geometry
+ setBackgroundMode( Qt::NoBackground );
+
+ m_width = -1;
+
+ m_accel = new KAccel( this, this, "presentationmode-accel" );
+
+ // show widget and take control
+ showFullScreen();
+
+ // misc stuff
+ setMouseTracking( true );
+ m_transitionTimer = new QTimer( this );
+ connect( m_transitionTimer, SIGNAL( timeout() ), this, SLOT( slotTransitionStep() ) );
+ m_overlayHideTimer = new QTimer( this );
+ connect( m_overlayHideTimer, SIGNAL( timeout() ), this, SLOT( slotHideOverlay() ) );
+ m_nextPageTimer = new QTimer( this );
+ connect( m_nextPageTimer, SIGNAL( timeout() ), this, SLOT( slotNextPage() ) );
+
+ // handle cursor appearance as specified in configuration
+ if ( KpdfSettings::slidesCursor() == KpdfSettings::EnumSlidesCursor::HiddenDelay )
+ {
+ KCursor::setAutoHideCursor( this, true );
+ KCursor::setHideCursorDelay( 3000 );
+ }
+ else if ( KpdfSettings::slidesCursor() == KpdfSettings::EnumSlidesCursor::Hidden )
+ {
+ setCursor( KCursor::blankCursor() );
+ }
+}
+
+PresentationWidget::~PresentationWidget()
+{
+ // remove this widget from document observer
+ m_document->removeObserver( this );
+
+ // delete frames
+ QValueVector< PresentationFrame * >::iterator fIt = m_frames.begin(), fEnd = m_frames.end();
+ for ( ; fIt != fEnd; ++fIt )
+ delete *fIt;
+}
+
+void PresentationWidget::setupActions( KActionCollection * ac )
+{
+ m_accel->insert( "previous_page", ac->action( "previous_page" )->shortcut(), this, SLOT( slotPrevPage() ), false, true );
+ m_accel->insert( "next_page", ac->action( "next_page" )->shortcut(), this, SLOT( slotNextPage() ), false, true );
+ m_accel->insert( "first_page", ac->action( "first_page" )->shortcut(), this, SLOT( slotFirstPage() ), false, true );
+ m_accel->insert( "last_page", ac->action( "last_page" )->shortcut(), this, SLOT( slotLastPage() ), false, true );
+ m_accel->insert( "presentation", ac->action( "presentation" )->shortcut(), this, SLOT( close() ), false, true );
+}
+
+void PresentationWidget::notifySetup( const QValueVector< KPDFPage * > & pageSet, bool /*documentChanged*/ )
+{
+ // delete previous frames (if any (shouldn't be))
+ QValueVector< PresentationFrame * >::iterator fIt = m_frames.begin(), fEnd = m_frames.end();
+ for ( ; fIt != fEnd; ++fIt )
+ delete *fIt;
+ if ( !m_frames.isEmpty() )
+ kdWarning() << "Frames setup changed while a Presentation is in progress." << endl;
+ m_frames.clear();
+
+ // create the new frames
+ QValueVector< KPDFPage * >::const_iterator setIt = pageSet.begin(), setEnd = pageSet.end();
+ float screenRatio = (float)m_height / (float)m_width;
+ for ( ; setIt != setEnd; ++setIt )
+ {
+ PresentationFrame * frame = new PresentationFrame();
+ frame->page = *setIt;
+ // calculate frame geometry keeping constant aspect ratio
+ float pageRatio = frame->page->ratio();
+ int pageWidth = m_width,
+ pageHeight = m_height;
+ if ( pageRatio > screenRatio )
+ pageWidth = (int)( (float)pageHeight / pageRatio );
+ else
+ pageHeight = (int)( (float)pageWidth * pageRatio );
+ frame->geometry.setRect( (m_width - pageWidth) / 2,
+ (m_height - pageHeight) / 2,
+ pageWidth, pageHeight );
+ // add the frame to the vector
+ m_frames.push_back( frame );
+ }
+
+ // get metadata from the document
+ m_metaStrings.clear();
+ const DocumentInfo * info = m_document->documentInfo();
+ if ( info )
+ {
+ if ( !info->get( "title" ).isNull() )
+ m_metaStrings += i18n( "Title: %1" ).arg( info->get( "title" ) );
+ if ( !info->get( "author" ).isNull() )
+ m_metaStrings += i18n( "Author: %1" ).arg( info->get( "author" ) );
+ }
+ m_metaStrings += i18n( "Pages: %1" ).arg( m_document->pages() );
+ m_metaStrings += i18n( "Click to begin" );
+}
+
+void PresentationWidget::notifyViewportChanged( bool /*smoothMove*/ )
+{
+ // discard notifications if displaying the summary
+ if ( m_frameIndex == -1 && KpdfSettings::slidesShowSummary() )
+ return;
+
+ // display the current page
+ changePage( m_document->viewport().pageNumber );
+
+ // auto advance to the next page if set
+ if ( KpdfSettings::slidesAdvance() )
+ m_nextPageTimer->start( KpdfSettings::slidesAdvanceTime() * 1000 );
+}
+
+void PresentationWidget::notifyPageChanged( int pageNumber, int changedFlags )
+{
+ // check if it's the last requested pixmap. if so update the widget.
+ if ( (changedFlags & DocumentObserver::Pixmap) && pageNumber == m_frameIndex )
+ generatePage();
+}
+
+bool PresentationWidget::canUnloadPixmap( int pageNumber )
+{
+ // can unload all pixmaps except for the currently visible one
+ return pageNumber != m_frameIndex;
+}
+
+
+// <widget events>
+/* This hack was here to fix 103718 but it's no longer necessary on KDE 3.5 and Lubos asked me to remove it
+bool PresentationWidget::event ( QEvent * e )
+{
+ if (e -> type() == QEvent::WindowDeactivate) KWin::clearState(winId(), NET::StaysOnTop);
+ else if (e -> type() == QEvent::WindowActivate) KWin::setState(winId(), NET::StaysOnTop);
+ return QDialog::event(e);
+}
+*/
+
+void PresentationWidget::keyPressEvent( QKeyEvent * e )
+{
+ if (m_width == -1) return;
+
+ if ( e->key() == Key_Left || e->key() == Key_Backspace || e->key() == Key_Prior )
+ slotPrevPage();
+ else if ( e->key() == Key_Right || e->key() == Key_Space || e->key() == Key_Next )
+ slotNextPage();
+ else if ( e->key() == Key_Home )
+ slotFirstPage();
+ else if ( e->key() == Key_End )
+ slotLastPage();
+ else if ( e->key() == Key_Escape )
+ {
+ if ( m_topBar->isShown() )
+ m_topBar->hide();
+ else
+ close();
+ }
+}
+
+void PresentationWidget::wheelEvent( QWheelEvent * e )
+{
+ // performance note: don't remove the clipping
+ int div = e->delta() / 120;
+ if ( div > 0 )
+ {
+ if ( div > 3 )
+ div = 3;
+ while ( div-- )
+ slotPrevPage();
+ }
+ else if ( div < 0 )
+ {
+ if ( div < -3 )
+ div = -3;
+ while ( div++ )
+ slotNextPage();
+ }
+}
+
+void PresentationWidget::mousePressEvent( QMouseEvent * e )
+{
+ // pressing left button
+ if ( e->button() == Qt::LeftButton )
+ {
+ // if pressing on a link, skip other checks
+ if ( ( m_pressedLink = getLink( e->x(), e->y() ) ) )
+ return;
+
+ // handle clicking on top-right overlay
+ if ( m_overlayGeometry.contains( e->pos() ) )
+ {
+ overlayClick( e->pos() );
+ return;
+ }
+
+ // if no other actions, go to next page
+ slotNextPage();
+ }
+ // pressing right button
+ else if ( e->button() == Qt::RightButton )
+ slotPrevPage();
+}
+
+void PresentationWidget::mouseReleaseEvent( QMouseEvent * e )
+{
+ // if releasing on the same link we pressed over, execute it
+ if ( m_pressedLink && e->button() == Qt::LeftButton )
+ {
+ const KPDFLink * link = getLink( e->x(), e->y() );
+ if ( link == m_pressedLink )
+ m_document->processLink( link );
+ m_pressedLink = 0;
+ }
+}
+
+void PresentationWidget::mouseMoveEvent( QMouseEvent * e )
+{
+ // safety check
+ if ( m_width == -1 )
+ return;
+
+ // update cursor and tooltip if hovering a link
+ if ( KpdfSettings::slidesCursor() != KpdfSettings::EnumSlidesCursor::Hidden )
+ testCursorOnLink( e->x(), e->y() );
+
+ if ( m_topBar->isShown() )
+ {
+ // hide a shown bar when exiting the area
+ if ( e->y() > ( m_topBar->height() + 1 ) )
+ m_topBar->hide();
+ }
+ else
+ {
+ // show the bar if reaching top 2 pixels
+ if ( e->y() <= (geometry().top() + 1) )
+ m_topBar->show();
+ // handle "dragging the wheel" if clicking on its geometry
+ else if ( e->state() == Qt::LeftButton && m_overlayGeometry.contains( e->pos() ) )
+ overlayClick( e->pos() );
+ }
+}
+
+void PresentationWidget::paintEvent( QPaintEvent * pe )
+{
+ if (m_width == -1)
+ {
+ QRect d = KGlobalSettings::desktopGeometry(this);
+ m_width = d.width();
+ m_height = d.height();
+
+ // create top toolbar
+ m_topBar = new KToolBar( this, "presentationBar" );
+ m_topBar->setIconSize( 32 );
+ m_topBar->setMovingEnabled( false );
+ m_topBar->insertButton( QApplication::reverseLayout() ? "1rightarrow" : "1leftarrow", 2, SIGNAL( clicked() ), this, SLOT( slotPrevPage() ) );
+ m_topBar->insertButton( QApplication::reverseLayout() ? "1leftarrow" : "1rightarrow", 3, SIGNAL( clicked() ), this, SLOT( slotNextPage() ) );
+ m_topBar->insertButton( "exit", 1, SIGNAL( clicked() ), this, SLOT( close() ) );
+ m_topBar->setGeometry( 0, 0, m_width, 32 + 10 );
+ m_topBar->alignItemRight( 1 );
+ m_topBar->hide();
+ // change topbar background color
+ QPalette p = m_topBar->palette();
+ p.setColor( QPalette::Active, QColorGroup::Button, Qt::gray );
+ p.setColor( QPalette::Active, QColorGroup::Background, Qt::darkGray );
+ m_topBar->setPalette( p );
+
+ // register this observer in document. events will come immediately
+ m_document->addObserver( this );
+
+ // show summary if requested
+ if ( KpdfSettings::slidesShowSummary() )
+ generatePage();
+
+ KMessageBox::information(this, i18n("There are two ways of exiting presentation mode, you can press either ESC key or click with the quit button that appears when placing the mouse in the top-right corner. Of course you can cycle windows (Alt+TAB by default)"), QString::null, "presentationInfo");
+ }
+
+ // check painting rect consistancy
+ QRect r = pe->rect().intersect( geometry() );
+ if ( r.isNull() || m_lastRenderedPixmap.isNull() )
+ return;
+
+ // blit the pixmap to the screen
+ QMemArray<QRect> allRects = pe->region().rects();
+ uint numRects = allRects.count();
+ for ( uint i = 0; i < numRects; i++ )
+ {
+ const QRect & r = allRects[i];
+ if ( !r.isValid() )
+ continue;
+#ifdef ENABLE_PROGRESS_OVERLAY
+ if ( KpdfSettings::slidesShowProgress() && r.intersects( m_overlayGeometry ) )
+ {
+ // backbuffer the overlay operation
+ QPixmap backPixmap( r.size() );
+ QPainter pixPainter( &backPixmap );
+
+ // first draw the background on the backbuffer
+ pixPainter.drawPixmap( QPoint(0,0), m_lastRenderedPixmap, r );
+
+ // then blend the overlay (a piece of) over the background
+ QRect ovr = m_overlayGeometry.intersect( r );
+ pixPainter.drawPixmap( ovr.left() - r.left(), ovr.top() - r.top(),
+ m_lastRenderedOverlay, ovr.left() - m_overlayGeometry.left(),
+ ovr.top() - m_overlayGeometry.top(), ovr.width(), ovr.height() );
+
+ // finally blit the pixmap to the screen
+ pixPainter.end();
+ bitBlt( this, r.topLeft(), &backPixmap, backPixmap.rect() );
+ } else
+#endif
+ // copy the rendered pixmap to the screen
+ bitBlt( this, r.topLeft(), &m_lastRenderedPixmap, r );
+ }
+}
+// </widget events>
+
+
+const KPDFLink * PresentationWidget::getLink( int x, int y, QRect * geometry ) const
+{
+ // no links on invalid pages
+ if ( geometry && !geometry->isNull() )
+ geometry->setRect( 0, 0, -1, -1 );
+ if ( m_frameIndex < 0 || m_frameIndex >= (int)m_frames.size() )
+ return 0;
+
+ // get frame, page and geometry
+ const PresentationFrame * frame = m_frames[ m_frameIndex ];
+ const KPDFPage * page = frame->page;
+ const QRect & frameGeometry = frame->geometry;
+
+ // compute normalized x and y
+ double nx = (double)(x - frameGeometry.left()) / (double)frameGeometry.width();
+ double ny = (double)(y - frameGeometry.top()) / (double)frameGeometry.height();
+
+ // no links outside the pages
+ if ( nx < 0 || nx > 1 || ny < 0 || ny > 1 )
+ return 0;
+
+ // check if 1) there is an object and 2) it's a link
+ const ObjectRect * object = page->hasObject( ObjectRect::Link, nx, ny );
+ if ( !object )
+ return 0;
+
+ // compute link geometry if destination rect present
+ if ( geometry )
+ {
+ *geometry = object->geometry( frameGeometry.width(), frameGeometry.height() );
+ geometry->moveBy( frameGeometry.left(), frameGeometry.top() );
+ }
+
+ // return the link pointer
+ return (KPDFLink *)object->pointer();
+}
+
+void PresentationWidget::testCursorOnLink( int x, int y )
+{
+ // get rect
+ QRect linkRect;
+ const KPDFLink * link = getLink( x, y, &linkRect );
+
+ // only react on changes (in/out from a link)
+ if ( (link && !m_handCursor) || (!link && m_handCursor) )
+ {
+ // change cursor shape
+ m_handCursor = link != 0;
+ setCursor( m_handCursor ? KCursor::handCursor() : KCursor::arrowCursor());
+
+ // set tooltip over link's rect
+ QString tip = link ? link->linkTip() : QString::null;
+ if ( m_handCursor && !tip.isEmpty() )
+ QToolTip::add( this, linkRect, tip );
+ }
+}
+
+void PresentationWidget::overlayClick( const QPoint & position )
+{
+ // clicking the progress indicator
+ int xPos = position.x() - m_overlayGeometry.x() - m_overlayGeometry.width() / 2,
+ yPos = m_overlayGeometry.height() / 2 - position.y();
+ if ( !xPos && !yPos )
+ return;
+
+ // compute angle relative to indicator (note coord transformation)
+ float angle = 0.5 + 0.5 * atan2( -xPos, -yPos ) / M_PI;
+ int pageIndex = (int)( angle * ( m_frames.count() - 1 ) + 0.5 );
+
+ // go to selected page
+ changePage( pageIndex );
+}
+
+void PresentationWidget::changePage( int newPage )
+{
+ if ( m_frameIndex == newPage )
+ return;
+
+ // check if pixmap exists or else request it
+ m_frameIndex = newPage;
+ PresentationFrame * frame = m_frames[ m_frameIndex ];
+ int pixW = frame->geometry.width();
+ int pixH = frame->geometry.height();
+
+ // if pixmap not inside the KPDFPage we request it and wait for
+ // notifyPixmapChanged call or else we can proceed to pixmap generation
+ if ( !frame->page->hasPixmap( PRESENTATION_ID, pixW, pixH ) )
+ {
+ // operation will take long: set busy cursor
+ QApplication::setOverrideCursor( KCursor::workingCursor() );
+ // request the pixmap
+ QValueList< PixmapRequest * > requests;
+ requests.push_back( new PixmapRequest( PRESENTATION_ID, m_frameIndex, pixW, pixH, PRESENTATION_PRIO ) );
+ // restore cursor
+ QApplication::restoreOverrideCursor();
+ // ask for next and previous page if not in low memory usage setting
+ if (KpdfSettings::memoryLevel() != KpdfSettings::EnumMemoryLevel::Low && KpdfSettings::enableThreading()) {
+ if (newPage + 1 < (int)m_document->pages())
+ {
+ PresentationFrame *nextFrame = m_frames[ newPage + 1 ];
+ pixW = nextFrame->geometry.width();
+ pixH = nextFrame->geometry.height();
+ if ( !nextFrame->page->hasPixmap( PRESENTATION_ID, pixW, pixH ) )
+ requests.push_back( new PixmapRequest( PRESENTATION_ID, newPage + 1, pixW, pixH, PRESENTATION_PRELOAD_PRIO, true ) );
+ }
+ if (newPage - 1 >= 0)
+ {
+ PresentationFrame *prevFrame = m_frames[ newPage - 1 ];
+ pixW = prevFrame->geometry.width();
+ pixH = prevFrame->geometry.height();
+ if ( !prevFrame->page->hasPixmap( PRESENTATION_ID, pixW, pixH ) )
+ requests.push_back( new PixmapRequest( PRESENTATION_ID, newPage - 1, pixW, pixH, PRESENTATION_PRELOAD_PRIO, true ) );
+ }
+ }
+ m_document->requestPixmaps( requests );
+ }
+ else
+ {
+ // make the background pixmap
+ generatePage();
+ }
+
+ // set a new viewport in document if page number differs
+ if ( m_frameIndex != -1 && m_frameIndex != m_document->viewport().pageNumber )
+ m_document->setViewportPage( m_frameIndex, PRESENTATION_ID );
+}
+
+void PresentationWidget::generatePage()
+{
+ if ( m_lastRenderedPixmap.isNull() )
+ m_lastRenderedPixmap.resize( m_width, m_height );
+
+ // opens the painter over the pixmap
+ QPainter pixmapPainter;
+ pixmapPainter.begin( &m_lastRenderedPixmap );
+ // generate welcome page
+ if ( m_frameIndex == -1 )
+ generateIntroPage( pixmapPainter );
+ // generate a normal pixmap with extended margin filling
+ if ( m_frameIndex >= 0 && m_frameIndex < (int)m_document->pages() )
+ generateContentsPage( m_frameIndex, pixmapPainter );
+ pixmapPainter.end();
+
+ // generate the top-right corner overlay
+#ifdef ENABLE_PROGRESS_OVERLAY
+ if ( KpdfSettings::slidesShowProgress() && m_frameIndex != -1 )
+ generateOverlay();
+#endif
+
+ // start transition on pages that have one
+ const KPDFPageTransition * transition = m_frameIndex != -1 ?
+ m_frames[ m_frameIndex ]->page->getTransition() : 0;
+ if ( transition )
+ initTransition( transition );
+ else {
+ KPDFPageTransition trans = defaultTransition();
+ initTransition( &trans );
+ }
+
+ // update cursor + tooltip
+ if ( KpdfSettings::slidesCursor() != KpdfSettings::EnumSlidesCursor::Hidden )
+ {
+ QPoint p = mapFromGlobal( QCursor::pos() );
+ testCursorOnLink( p.x(), p.y() );
+ }
+}
+
+void PresentationWidget::generateIntroPage( QPainter & p )
+{
+ // use a vertical gray gradient background
+ int blend1 = m_height / 10,
+ blend2 = 9 * m_height / 10;
+ int baseTint = Qt::gray.red();
+ for ( int i = 0; i < m_height; i++ )
+ {
+ int k = baseTint;
+ if ( i < blend1 )
+ k -= (int)( baseTint * (i-blend1)*(i-blend1) / (float)(blend1 * blend1) );
+ if ( i > blend2 )
+ k += (int)( (255-baseTint) * (i-blend2)*(i-blend2) / (float)(blend1 * blend1) );
+ p.fillRect( 0, i, m_width, 1, QColor( k, k, k ) );
+ }
+
+ // draw kpdf logo in the four corners
+ QPixmap logo = DesktopIcon( "kpdf", 64 );
+ if ( !logo.isNull() )
+ {
+ p.drawPixmap( 5, 5, logo );
+ p.drawPixmap( m_width - 5 - logo.width(), 5, logo );
+ p.drawPixmap( m_width - 5 - logo.width(), m_height - 5 - logo.height(), logo );
+ p.drawPixmap( 5, m_height - 5 - logo.height(), logo );
+ }
+
+ // draw metadata text (the last line is 'click to begin')
+ int strNum = m_metaStrings.count(),
+ strHeight = m_height / ( strNum + 4 ),
+ fontHeight = 2 * strHeight / 3;
+ QFont font( p.font() );
+ font.setPixelSize( fontHeight );
+ QFontMetrics metrics( font );
+ for ( int i = 0; i < strNum; i++ )
+ {
+ // set a font to fit text width
+ float wScale = (float)metrics.boundingRect( m_metaStrings[i] ).width() / (float)m_width;
+ QFont f( font );
+ if ( wScale > 1.0 )
+ f.setPixelSize( (int)( (float)fontHeight / (float)wScale ) );
+ p.setFont( f );
+
+ // text shadow
+ p.setPen( Qt::darkGray );
+ p.drawText( 2, m_height / 4 + strHeight * i + 2, m_width, strHeight,
+ AlignHCenter | AlignVCenter, m_metaStrings[i] );
+ // text body
+ p.setPen( 128 + (127 * i) / strNum );
+ p.drawText( 0, m_height / 4 + strHeight * i, m_width, strHeight,
+ AlignHCenter | AlignVCenter, m_metaStrings[i] );
+ }
+}
+
+void PresentationWidget::generateContentsPage( int pageNum, QPainter & p )
+{
+ PresentationFrame * frame = m_frames[ pageNum ];
+
+ // translate painter and contents rect
+ QRect geom( frame->geometry );
+ p.translate( geom.left(), geom.top() );
+ geom.moveBy( -geom.left(), -geom.top() );
+
+ // draw the page using the shared PagePainter class
+ int flags = PagePainter::Accessibility;
+ PagePainter::paintPageOnPainter( frame->page, PRESENTATION_ID, flags,
+ &p, geom, geom.width(), geom.height() );
+
+ // restore painter
+ p.translate( -frame->geometry.left(), -frame->geometry.top() );
+
+ // fill unpainted areas with background color
+ QRegion unpainted( QRect( 0, 0, m_width, m_height ) );
+ QMemArray<QRect> rects = unpainted.subtract( frame->geometry ).rects();
+ for ( uint i = 0; i < rects.count(); i++ )
+ {
+ const QRect & r = rects[i];
+ p.fillRect( r, KpdfSettings::slidesBackgroundColor() );
+ }
+}
+
+// from Arthur - Qt4 - (is defined elsewhere as 'qt_div_255' to not break final compilation)
+inline int qt_div255(int x) { return (x + (x>>8) + 0x80) >> 8; }
+void PresentationWidget::generateOverlay()
+{
+#ifdef ENABLE_PROGRESS_OVERLAY
+ // calculate overlay geometry and resize pixmap if needed
+ int side = m_width / 16;
+ m_overlayGeometry.setRect( m_width - side - 4, 4, side, side );
+ if ( m_lastRenderedOverlay.width() != side )
+ m_lastRenderedOverlay.resize( side, side );
+
+ // note: to get a sort of antialiasing, we render the pixmap double sized
+ // and the resulting image is smoothly scaled down. So here we open a
+ // painter on the double sized pixmap.
+ side *= 2;
+ QPixmap doublePixmap( side, side );
+ doublePixmap.fill( Qt::black );
+ QPainter pixmapPainter( &doublePixmap );
+
+ // draw PIE SLICES in blue levels (the levels will then be the alpha component)
+ int pages = m_document->pages();
+ if ( pages > 28 )
+ { // draw continuous slices
+ int degrees = (int)( 360 * (float)(m_frameIndex + 1) / (float)pages );
+ pixmapPainter.setPen( 0x05 );
+ pixmapPainter.setBrush( 0x40 );
+ pixmapPainter.drawPie( 2, 2, side - 4, side - 4, 90*16, (360-degrees)*16 );
+ pixmapPainter.setPen( 0x40 );
+ pixmapPainter.setBrush( 0xF0 );
+ pixmapPainter.drawPie( 2, 2, side - 4, side - 4, 90*16, -degrees*16 );
+ }
+ else
+ { // draw discrete slices
+ float oldCoord = -90;
+ for ( int i = 0; i < pages; i++ )
+ {
+ float newCoord = -90 + 360 * (float)(i + 1) / (float)pages;
+ pixmapPainter.setPen( i <= m_frameIndex ? 0x40 : 0x05 );
+ pixmapPainter.setBrush( i <= m_frameIndex ? 0xF0 : 0x40 );
+ pixmapPainter.drawPie( 2, 2, side - 4, side - 4,
+ (int)( -16*(oldCoord + 1) ), (int)( -16*(newCoord - (oldCoord + 2)) ) );
+ oldCoord = newCoord;
+ }
+ }
+ int circleOut = side / 4;
+ pixmapPainter.setPen( Qt::black );
+ pixmapPainter.setBrush( Qt::black );
+ pixmapPainter.drawEllipse( circleOut, circleOut, side - 2*circleOut, side - 2*circleOut );
+
+ // draw TEXT using maximum opacity
+ QFont f( pixmapPainter.font() );
+ f.setPixelSize( side / 4 );
+ pixmapPainter.setFont( f );
+ pixmapPainter.setPen( 0xFF );
+ // use a little offset to prettify output
+ pixmapPainter.drawText( 2, 2, side, side, Qt::AlignCenter, QString::number( m_frameIndex + 1 ) );
+
+ // end drawing pixmap and halve image
+ pixmapPainter.end();
+ QImage image( doublePixmap.convertToImage().smoothScale( side / 2, side / 2 ) );
+ image.setAlphaBuffer( true );
+
+ // draw circular shadow using the same technique
+ doublePixmap.fill( Qt::black );
+ pixmapPainter.begin( &doublePixmap );
+ pixmapPainter.setPen( 0x40 );
+ pixmapPainter.setBrush( 0x80 );
+ pixmapPainter.drawEllipse( 0, 0, side, side );
+ pixmapPainter.end();
+ QImage shadow( doublePixmap.convertToImage().smoothScale( side / 2, side / 2 ) );
+
+ // generate a 2 colors pixmap using mixing shadow (made with highlight color)
+ // and image (made with highlightedText color)
+ QColor color = palette().active().highlightedText();
+ int red = color.red(), green = color.green(), blue = color.blue();
+ color = palette().active().highlight();
+ int sRed = color.red(), sGreen = color.green(), sBlue = color.blue();
+ // pointers
+ unsigned int * data = (unsigned int *)image.bits(),
+ * shadowData = (unsigned int *)shadow.bits(),
+ pixels = image.width() * image.height();
+ // cache data (reduce computation time to 26%!)
+ int c1 = -1, c2 = -1, cR = 0, cG = 0, cB = 0, cA = 0;
+ // foreach pixel
+ for( unsigned int i = 0; i < pixels; ++i )
+ {
+ // alpha for shadow and image
+ int shadowAlpha = shadowData[i] & 0xFF,
+ srcAlpha = data[i] & 0xFF;
+ // cache values
+ if ( srcAlpha != c1 || shadowAlpha != c2 )
+ {
+ c1 = srcAlpha;
+ c2 = shadowAlpha;
+ // fuse color components and alpha value of image over shadow
+ data[i] = qRgba(
+ cR = qt_div255( srcAlpha * red + (255 - srcAlpha) * sRed ),
+ cG = qt_div255( srcAlpha * green + (255 - srcAlpha) * sGreen ),
+ cB = qt_div255( srcAlpha * blue + (255 - srcAlpha) * sBlue ),
+ cA = qt_div255( srcAlpha * srcAlpha + (255 - srcAlpha) * shadowAlpha )
+ );
+ }
+ else
+ data[i] = qRgba( cR, cG, cB, cA );
+ }
+ m_lastRenderedOverlay.convertFromImage( image );
+
+ // start the autohide timer
+ repaint( m_overlayGeometry, false /*clear*/ ); // toggle with next line
+ //update( m_overlayGeometry );
+ m_overlayHideTimer->start( 2500, true );
+#endif
+}
+
+
+
+void PresentationWidget::slotNextPage()
+{
+ // loop when configured
+ if ( m_frameIndex == (int)m_frames.count() - 1 && KpdfSettings::slidesLoop() )
+ m_frameIndex = -1;
+
+ if ( m_frameIndex < (int)m_frames.count() - 1 )
+ {
+ // go to next page
+ changePage( m_frameIndex + 1 );
+
+ // auto advance to the next page if set
+ if ( KpdfSettings::slidesAdvance() )
+ m_nextPageTimer->start( KpdfSettings::slidesAdvanceTime() * 1000 );
+ }
+ else
+ {
+#ifdef ENABLE_PROGRESS_OVERLAY
+ if ( KpdfSettings::slidesShowProgress() )
+ generateOverlay();
+#endif
+ if ( m_transitionTimer->isActive() )
+ {
+ m_transitionTimer->stop();
+ update();
+ }
+ }
+
+ // we need the setFocus() call here to let KCursor::autoHide() work correctly
+ setFocus();
+}
+
+void PresentationWidget::slotPrevPage()
+{
+ if ( m_frameIndex > 0 )
+ {
+ // go to previous page
+ changePage( m_frameIndex - 1 );
+
+ // auto advance to the next page if set
+ if ( KpdfSettings::slidesAdvance() )
+ m_nextPageTimer->start( KpdfSettings::slidesAdvanceTime() * 1000 );
+ }
+ else
+ {
+#ifdef ENABLE_PROGRESS_OVERLAY
+ if ( KpdfSettings::slidesShowProgress() )
+ generateOverlay();
+#endif
+ if ( m_transitionTimer->isActive() )
+ {
+ m_transitionTimer->stop();
+ update();
+ }
+ }
+}
+
+void PresentationWidget::slotFirstPage()
+{
+ changePage( 0 );
+}
+
+void PresentationWidget::slotLastPage()
+{
+ changePage( (int)m_frames.count() - 1 );
+}
+
+void PresentationWidget::slotHideOverlay()
+{
+ QRect geom( m_overlayGeometry );
+ m_overlayGeometry.setCoords( 0, 0, -1, -1 );
+ update( geom );
+}
+
+void PresentationWidget::slotTransitionStep()
+{
+ if ( m_transitionRects.empty() )
+ {
+ // it's better to fix the transition to cover the whole screen than
+ // enabling the following line that wastes cpu for nothing
+ //update();
+ return;
+ }
+
+ for ( int i = 0; i < m_transitionMul && !m_transitionRects.empty(); i++ )
+ {
+ update( m_transitionRects.first() );
+ m_transitionRects.pop_front();
+ }
+ m_transitionTimer->start( m_transitionDelay, true );
+}
+
+const KPDFPageTransition PresentationWidget::defaultTransition() const
+{
+ return defaultTransition( KpdfSettings::slidesTransition() );
+}
+
+const KPDFPageTransition PresentationWidget::defaultTransition( int type ) const
+{
+ switch ( type )
+ {
+ case KpdfSettings::EnumSlidesTransition::BlindsHorizontal:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Blinds );
+ transition.setAlignment( KPDFPageTransition::Horizontal );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::BlindsVertical:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Blinds );
+ transition.setAlignment( KPDFPageTransition::Vertical );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::BoxIn:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Box );
+ transition.setDirection( KPDFPageTransition::Inward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::BoxOut:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Box );
+ transition.setDirection( KPDFPageTransition::Outward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::Dissolve:
+ {
+ return KPDFPageTransition( KPDFPageTransition::Dissolve );
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::GlitterDown:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Glitter );
+ transition.setAngle( 270 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::GlitterRight:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Glitter );
+ transition.setAngle( 0 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::GlitterRightDown:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Glitter );
+ transition.setAngle( 315 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::Random:
+ {
+ return defaultTransition( KApplication::random() % 18 );
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::SplitHorizontalIn:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Split );
+ transition.setAlignment( KPDFPageTransition::Horizontal );
+ transition.setDirection( KPDFPageTransition::Inward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::SplitHorizontalOut:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Split );
+ transition.setAlignment( KPDFPageTransition::Horizontal );
+ transition.setDirection( KPDFPageTransition::Outward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::SplitVerticalIn:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Split );
+ transition.setAlignment( KPDFPageTransition::Vertical );
+ transition.setDirection( KPDFPageTransition::Inward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::SplitVerticalOut:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Split );
+ transition.setAlignment( KPDFPageTransition::Vertical );
+ transition.setDirection( KPDFPageTransition::Outward );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::WipeDown:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Wipe );
+ transition.setAngle( 270 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::WipeRight:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Wipe );
+ transition.setAngle( 0 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::WipeLeft:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Wipe );
+ transition.setAngle( 180 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::WipeUp:
+ {
+ KPDFPageTransition transition( KPDFPageTransition::Wipe );
+ transition.setAngle( 90 );
+ return transition;
+ break;
+ }
+ case KpdfSettings::EnumSlidesTransition::Replace:
+ default:
+ return KPDFPageTransition( KPDFPageTransition::Replace );
+ break;
+ }
+}
+
+/** ONLY the TRANSITIONS GENERATION function from here on **/
+void PresentationWidget::initTransition( const KPDFPageTransition *transition )
+{
+ // if it's just a 'replace' transition, repaint the screen
+ if ( transition->type() == KPDFPageTransition::Replace )
+ {
+ update();
+ return;
+ }
+
+ const bool isInward = transition->direction() == KPDFPageTransition::Inward;
+ const bool isHorizontal = transition->alignment() == KPDFPageTransition::Horizontal;
+ const float totalTime = transition->duration();
+
+ m_transitionRects.clear();
+
+ switch( transition->type() )
+ {
+ // split: horizontal / vertical and inward / outward
+ case KPDFPageTransition::Split:
+ {
+ const int steps = isHorizontal ? 100 : 75;
+ if ( isHorizontal )
+ {
+ if ( isInward )
+ {
+ int xPosition = 0;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int xNext = ((i + 1) * m_width) / (2 * steps);
+ m_transitionRects.push_back( QRect( xPosition, 0, xNext - xPosition, m_height ) );
+ m_transitionRects.push_back( QRect( m_width - xNext, 0, xNext - xPosition, m_height ) );
+ xPosition = xNext;
+ }
+ }
+ else
+ {
+ int xPosition = m_width / 2;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int xNext = ((steps - (i + 1)) * m_width) / (2 * steps);
+ m_transitionRects.push_back( QRect( xNext, 0, xPosition - xNext, m_height ) );
+ m_transitionRects.push_back( QRect( m_width - xPosition, 0, xPosition - xNext, m_height ) );
+ xPosition = xNext;
+ }
+ }
+ }
+ else
+ {
+ if ( isInward )
+ {
+ int yPosition = 0;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int yNext = ((i + 1) * m_height) / (2 * steps);
+ m_transitionRects.push_back( QRect( 0, yPosition, m_width, yNext - yPosition ) );
+ m_transitionRects.push_back( QRect( 0, m_height - yNext, m_width, yNext - yPosition ) );
+ yPosition = yNext;
+ }
+ }
+ else
+ {
+ int yPosition = m_height / 2;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int yNext = ((steps - (i + 1)) * m_height) / (2 * steps);
+ m_transitionRects.push_back( QRect( 0, yNext, m_width, yPosition - yNext ) );
+ m_transitionRects.push_back( QRect( 0, m_height - yPosition, m_width, yPosition - yNext ) );
+ yPosition = yNext;
+ }
+ }
+ }
+ m_transitionMul = 2;
+ m_transitionDelay = (int)( (totalTime * 1000) / steps );
+ } break;
+
+ // blinds: horizontal(l-to-r) / vertical(t-to-b)
+ case KPDFPageTransition::Blinds:
+ {
+ const int blinds = isHorizontal ? 8 : 6;
+ const int steps = m_width / (4 * blinds);
+ if ( isHorizontal )
+ {
+ int xPosition[ 8 ];
+ for ( int b = 0; b < blinds; b++ )
+ xPosition[ b ] = (b * m_width) / blinds;
+
+ for ( int i = 0; i < steps; i++ )
+ {
+ int stepOffset = (int)( ((float)i * (float)m_width) / ((float)blinds * (float)steps) );
+ for ( int b = 0; b < blinds; b++ )
+ {
+ m_transitionRects.push_back( QRect( xPosition[ b ], 0, stepOffset, m_height ) );
+ xPosition[ b ] = stepOffset + (b * m_width) / blinds;
+ }
+ }
+ }
+ else
+ {
+ int yPosition[ 6 ];
+ for ( int b = 0; b < blinds; b++ )
+ yPosition[ b ] = (b * m_height) / blinds;
+
+ for ( int i = 0; i < steps; i++ )
+ {
+ int stepOffset = (int)( ((float)i * (float)m_height) / ((float)blinds * (float)steps) );
+ for ( int b = 0; b < blinds; b++ )
+ {
+ m_transitionRects.push_back( QRect( 0, yPosition[ b ], m_width, stepOffset ) );
+ yPosition[ b ] = stepOffset + (b * m_height) / blinds;
+ }
+ }
+ }
+ m_transitionMul = blinds;
+ m_transitionDelay = (int)( (totalTime * 1000) / steps );
+ } break;
+
+ // box: inward / outward
+ case KPDFPageTransition::Box:
+ {
+ const int steps = m_width / 10;
+ if ( isInward )
+ {
+ int L = 0, T = 0, R = m_width, B = m_height;
+ for ( int i = 0; i < steps; i++ )
+ {
+ // compure shrinked box coords
+ int newL = ((i + 1) * m_width) / (2 * steps);
+ int newT = ((i + 1) * m_height) / (2 * steps);
+ int newR = m_width - newL;
+ int newB = m_height - newT;
+ // add left, right, topcenter, bottomcenter rects
+ m_transitionRects.push_back( QRect( L, T, newL - L, B - T ) );
+ m_transitionRects.push_back( QRect( newR, T, R - newR, B - T ) );
+ m_transitionRects.push_back( QRect( newL, T, newR - newL, newT - T ) );
+ m_transitionRects.push_back( QRect( newL, newB, newR - newL, B - newB ) );
+ L = newL; T = newT; R = newR, B = newB;
+ }
+ }
+ else
+ {
+ int L = m_width / 2, T = m_height / 2, R = L, B = T;
+ for ( int i = 0; i < steps; i++ )
+ {
+ // compure shrinked box coords
+ int newL = ((steps - (i + 1)) * m_width) / (2 * steps);
+ int newT = ((steps - (i + 1)) * m_height) / (2 * steps);
+ int newR = m_width - newL;
+ int newB = m_height - newT;
+ // add left, right, topcenter, bottomcenter rects
+ m_transitionRects.push_back( QRect( newL, newT, L - newL, newB - newT ) );
+ m_transitionRects.push_back( QRect( R, newT, newR - R, newB - newT ) );
+ m_transitionRects.push_back( QRect( L, newT, R - L, T - newT ) );
+ m_transitionRects.push_back( QRect( L, B, R - L, newB - B ) );
+ L = newL; T = newT; R = newR, B = newB;
+ }
+ }
+ m_transitionMul = 4;
+ m_transitionDelay = (int)( (totalTime * 1000) / steps );
+ } break;
+
+ // wipe: implemented for 4 canonical angles
+ case KPDFPageTransition::Wipe:
+ {
+ const int angle = transition->angle();
+ const int steps = (angle == 0) || (angle == 180) ? m_width / 8 : m_height / 8;
+ if ( angle == 0 )
+ {
+ int xPosition = 0;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int xNext = ((i + 1) * m_width) / steps;
+ m_transitionRects.push_back( QRect( xPosition, 0, xNext - xPosition, m_height ) );
+ xPosition = xNext;
+ }
+ }
+ else if ( angle == 90 )
+ {
+ int yPosition = m_height;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int yNext = ((steps - (i + 1)) * m_height) / steps;
+ m_transitionRects.push_back( QRect( 0, yNext, m_width, yPosition - yNext ) );
+ yPosition = yNext;
+ }
+ }
+ else if ( angle == 180 )
+ {
+ int xPosition = m_width;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int xNext = ((steps - (i + 1)) * m_width) / steps;
+ m_transitionRects.push_back( QRect( xNext, 0, xPosition - xNext, m_height ) );
+ xPosition = xNext;
+ }
+ }
+ else if ( angle == 270 )
+ {
+ int yPosition = 0;
+ for ( int i = 0; i < steps; i++ )
+ {
+ int yNext = ((i + 1) * m_height) / steps;
+ m_transitionRects.push_back( QRect( 0, yPosition, m_width, yNext - yPosition ) );
+ yPosition = yNext;
+ }
+ }
+ else
+ {
+ update();
+ return;
+ }
+ m_transitionMul = 1;
+ m_transitionDelay = (int)( (totalTime * 1000) / steps );
+ } break;
+
+ // dissolve: replace 'random' rects
+ case KPDFPageTransition::Dissolve:
+ {
+ const int gridXsteps = 50;
+ const int gridYsteps = 38;
+ const int steps = gridXsteps * gridYsteps;
+ int oldX = 0;
+ int oldY = 0;
+ // create a grid of gridXstep by gridYstep QRects
+ for ( int y = 0; y < gridYsteps; y++ )
+ {
+ int newY = (int)( m_height * ((float)(y+1) / (float)gridYsteps) );
+ for ( int x = 0; x < gridXsteps; x++ )
+ {
+ int newX = (int)( m_width * ((float)(x+1) / (float)gridXsteps) );
+ m_transitionRects.push_back( QRect( oldX, oldY, newX - oldX, newY - oldY ) );
+ oldX = newX;
+ }
+ oldX = 0;
+ oldY = newY;
+ }
+ // randomize the grid
+ for ( int i = 0; i < steps; i++ )
+ {
+ int n1 = (int)(steps * drand48());
+ int n2 = (int)(steps * drand48());
+ // swap items if index differs
+ if ( n1 != n2 )
+ {
+ QRect r = m_transitionRects[ n2 ];
+ m_transitionRects[ n2 ] = m_transitionRects[ n1 ];
+ m_transitionRects[ n1 ] = r;
+ }
+ }
+ // set global transition parameters
+ m_transitionMul = 40;
+ m_transitionDelay = (int)( (m_transitionMul * 1000 * totalTime) / steps );
+ } break;
+
+ // glitter: similar to dissolve but has a direction
+ case KPDFPageTransition::Glitter:
+ {
+ const int gridXsteps = 50;
+ const int gridYsteps = 38;
+ const int steps = gridXsteps * gridYsteps;
+ const int angle = transition->angle();
+ // generate boxes using a given direction
+ if ( angle == 90 )
+ {
+ int yPosition = m_height;
+ for ( int i = 0; i < gridYsteps; i++ )
+ {
+ int yNext = ((gridYsteps - (i + 1)) * m_height) / gridYsteps;
+ int xPosition = 0;
+ for ( int j = 0; j < gridXsteps; j++ )
+ {
+ int xNext = ((j + 1) * m_width) / gridXsteps;
+ m_transitionRects.push_back( QRect( xPosition, yNext, xNext - xPosition, yPosition - yNext ) );
+ xPosition = xNext;
+ }
+ yPosition = yNext;
+ }
+ }
+ else if ( angle == 180 )
+ {
+ int xPosition = m_width;
+ for ( int i = 0; i < gridXsteps; i++ )
+ {
+ int xNext = ((gridXsteps - (i + 1)) * m_width) / gridXsteps;
+ int yPosition = 0;
+ for ( int j = 0; j < gridYsteps; j++ )
+ {
+ int yNext = ((j + 1) * m_height) / gridYsteps;
+ m_transitionRects.push_back( QRect( xNext, yPosition, xPosition - xNext, yNext - yPosition ) );
+ yPosition = yNext;
+ }
+ xPosition = xNext;
+ }
+ }
+ else if ( angle == 270 )
+ {
+ int yPosition = 0;
+ for ( int i = 0; i < gridYsteps; i++ )
+ {
+ int yNext = ((i + 1) * m_height) / gridYsteps;
+ int xPosition = 0;
+ for ( int j = 0; j < gridXsteps; j++ )
+ {
+ int xNext = ((j + 1) * m_width) / gridXsteps;
+ m_transitionRects.push_back( QRect( xPosition, yPosition, xNext - xPosition, yNext - yPosition ) );
+ xPosition = xNext;
+ }
+ yPosition = yNext;
+ }
+ }
+ else // if angle is 0 or 315
+ {
+ int xPosition = 0;
+ for ( int i = 0; i < gridXsteps; i++ )
+ {
+ int xNext = ((i + 1) * m_width) / gridXsteps;
+ int yPosition = 0;
+ for ( int j = 0; j < gridYsteps; j++ )
+ {
+ int yNext = ((j + 1) * m_height) / gridYsteps;
+ m_transitionRects.push_back( QRect( xPosition, yPosition, xNext - xPosition, yNext - yPosition ) );
+ yPosition = yNext;
+ }
+ xPosition = xNext;
+ }
+ }
+ // add a 'glitter' (1 over 10 pieces is randomized)
+ int randomSteps = steps / 20;
+ for ( int i = 0; i < randomSteps; i++ )
+ {
+ int n1 = (int)(steps * drand48());
+ int n2 = (int)(steps * drand48());
+ // swap items if index differs
+ if ( n1 != n2 )
+ {
+ QRect r = m_transitionRects[ n2 ];
+ m_transitionRects[ n2 ] = m_transitionRects[ n1 ];
+ m_transitionRects[ n1 ] = r;
+ }
+ }
+ // set global transition parameters
+ m_transitionMul = (angle == 90) || (angle == 270) ? gridYsteps : gridXsteps;
+ m_transitionMul /= 2;
+ m_transitionDelay = (int)( (m_transitionMul * 1000 * totalTime) / steps );
+ } break;
+
+ // implement missing transitions (a binary raster engine needed here)
+ case KPDFPageTransition::Fly:
+
+ case KPDFPageTransition::Push:
+
+ case KPDFPageTransition::Cover:
+
+ case KPDFPageTransition::Uncover:
+
+ case KPDFPageTransition::Fade:
+
+ default:
+ update();
+ return;
+ }
+
+ // send the first start to the timer
+ m_transitionTimer->start( 0, true );
+}
+
+
+#include "presentationwidget.moc"
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-12 21:27:49 +0000