mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
1616 lines
59 KiB
C++
1616 lines
59 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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#include "presentationwidget.h"
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// qt/kde includes
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#include <qevent.h>
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#include <qfontmetrics.h>
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#include <kicon.h>
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#include <qtimer.h>
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#include <qimage.h>
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#include <qlabel.h>
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#include <qpainter.h>
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#include <qstyle.h>
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#include <qstyleoption.h>
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#include <qtooltip.h>
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#include <qvalidator.h>
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#include <qapplication.h>
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#include <qdesktopwidget.h>
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#include <kcursor.h>
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#include <krandom.h>
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#include <qtoolbar.h>
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#include <kaction.h>
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#include <kactioncollection.h>
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#include <kglobalsettings.h>
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#include <klineedit.h>
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#include <klocale.h>
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#include <kiconloader.h>
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#include <kmessagebox.h>
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#include <kshortcut.h>
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#include <kdialog.h>
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// system includes
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#include <stdlib.h>
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#include <math.h>
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// local includes
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#include "annotationtools.h"
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#include "pagepainter.h"
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#include "presentationsearchbar.h"
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#include "core/action.h"
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#include "core/audioplayer.h"
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#include "core/document.h"
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#include "core/generator.h"
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#include "core/page.h"
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#include "settings.h"
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// comment this to disable the top-right progress indicator
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#define ENABLE_PROGRESS_OVERLAY
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// a frame contains a pointer to the page object, its geometry and the
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// transition effect to the next frame
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struct PresentationFrame
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{
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const Okular::Page * page;
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QRect geometry;
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};
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// a custom QToolBar that basically does not propagate the event if the widget
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// background is not automatically filled
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class PresentationToolBar : public QToolBar
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{
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public:
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PresentationToolBar( QWidget * parent = 0 )
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: QToolBar( parent )
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{}
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protected:
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void mousePressEvent( QMouseEvent * e )
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{
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QToolBar::mousePressEvent( e );
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e->accept();
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}
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void mouseReleaseEvent( QMouseEvent * e )
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{
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QToolBar::mouseReleaseEvent( e );
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e->accept();
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}
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};
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PresentationWidget::PresentationWidget( QWidget * parent, Okular::Document * doc )
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: QDialog( parent, Qt::FramelessWindowHint ),
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m_pressedLink( 0 ), m_handCursor( false ), m_drawingEngine( 0 ), m_document( doc ),
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m_frameIndex( -1 ), m_topBar( 0 ), m_pagesEdit( 0 ), m_searchBar( 0 )
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{
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setModal( true );
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setAttribute( Qt::WA_DeleteOnClose );
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setAttribute( Qt::WA_OpaquePaintEvent );
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setObjectName( "presentationWidget" );
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QString caption = doc->metaData( "DocumentTitle" ).toString();
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if ( caption.trimmed().isEmpty() )
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caption = doc->currentDocument().fileName();
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setWindowTitle( KDialog::makeStandardCaption( caption ) );
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m_width = -1;
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// show widget and take control
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showFullScreen();
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// misc stuff
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setMouseTracking( true );
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setContextMenuPolicy( Qt::PreventContextMenu );
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m_transitionTimer = new QTimer( this );
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m_transitionTimer->setSingleShot( true );
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connect( m_transitionTimer, SIGNAL( timeout() ), this, SLOT( slotTransitionStep() ) );
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m_overlayHideTimer = new QTimer( this );
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m_overlayHideTimer->setSingleShot( true );
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connect( m_overlayHideTimer, SIGNAL( timeout() ), this, SLOT( slotHideOverlay() ) );
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m_nextPageTimer = new QTimer( this );
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m_nextPageTimer->setSingleShot( true );
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connect( m_nextPageTimer, SIGNAL( timeout() ), this, SLOT( slotNextPage() ) );
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// handle cursor appearance as specified in configuration
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if ( Okular::Settings::slidesCursor() == Okular::Settings::EnumSlidesCursor::HiddenDelay )
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{
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KCursor::setAutoHideCursor( this, true );
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KCursor::setHideCursorDelay( 3000 );
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}
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else if ( Okular::Settings::slidesCursor() == Okular::Settings::EnumSlidesCursor::Hidden )
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{
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setCursor( QCursor( Qt::BlankCursor ) );
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}
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QTimer::singleShot( 0, this, SLOT( slotDelayedEvents() ) );
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}
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PresentationWidget::~PresentationWidget()
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{
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// stop the audio playbacks
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Okular::AudioPlayer::instance()->stopPlaybacks();
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// remove our highlights
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if ( m_searchBar )
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{
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m_document->resetSearch( PRESENTATION_SEARCH_ID );
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}
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// remove this widget from document observer
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m_document->removeObserver( this );
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m_document->removePageAnnotations( m_document->viewport().pageNumber, m_currentPageDrawings );
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delete m_drawingEngine;
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// delete frames
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QVector< PresentationFrame * >::iterator fIt = m_frames.begin(), fEnd = m_frames.end();
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for ( ; fIt != fEnd; ++fIt )
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delete *fIt;
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}
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void PresentationWidget::notifySetup( const QVector< Okular::Page * > & pageSet, int setupFlags )
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{
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// same document, nothing to change - here we assume the document sets up
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// us with the whole document set as first notifySetup()
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if ( !( setupFlags & Okular::DocumentObserver::DocumentChanged ) )
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return;
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// delete previous frames (if any (shouldn't be))
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QVector< PresentationFrame * >::iterator fIt = m_frames.begin(), fEnd = m_frames.end();
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for ( ; fIt != fEnd; ++fIt )
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delete *fIt;
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if ( !m_frames.isEmpty() )
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kWarning() << "Frames setup changed while a Presentation is in progress.";
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m_frames.clear();
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// create the new frames
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QVector< Okular::Page * >::const_iterator setIt = pageSet.begin(), setEnd = pageSet.end();
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float screenRatio = (float)m_height / (float)m_width;
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for ( ; setIt != setEnd; ++setIt )
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{
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PresentationFrame * frame = new PresentationFrame();
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frame->page = *setIt;
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// calculate frame geometry keeping constant aspect ratio
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float pageRatio = frame->page->ratio();
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int pageWidth = m_width,
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pageHeight = m_height;
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if ( pageRatio > screenRatio )
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pageWidth = (int)( (float)pageHeight / pageRatio );
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else
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pageHeight = (int)( (float)pageWidth * pageRatio );
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frame->geometry.setRect( (m_width - pageWidth) / 2,
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(m_height - pageHeight) / 2,
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pageWidth, pageHeight );
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// add the frame to the vector
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m_frames.push_back( frame );
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}
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// get metadata from the document
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m_metaStrings.clear();
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const Okular::DocumentInfo * info = m_document->documentInfo();
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if ( info )
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{
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if ( !info->get( "title" ).isNull() )
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m_metaStrings += i18n( "Title: %1", info->get( "title" ) );
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if ( !info->get( "author" ).isNull() )
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m_metaStrings += i18n( "Author: %1", info->get( "author" ) );
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}
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m_metaStrings += i18n( "Pages: %1", m_document->pages() );
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m_metaStrings += i18n( "Click to begin" );
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}
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void PresentationWidget::notifyViewportChanged( bool /*smoothMove*/ )
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{
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// discard notifications if displaying the summary
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if ( m_frameIndex == -1 && Okular::Settings::slidesShowSummary() )
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return;
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// display the current page
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changePage( m_document->viewport().pageNumber );
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// auto advance to the next page if set
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startAutoChangeTimer();
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}
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void PresentationWidget::notifyPageChanged( int pageNumber, int changedFlags )
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{
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// check if it's the last requested pixmap. if so update the widget.
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if ( (changedFlags & ( DocumentObserver::Pixmap | DocumentObserver::Annotations | DocumentObserver::Highlights ) ) && pageNumber == m_frameIndex )
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generatePage( changedFlags & ( DocumentObserver::Annotations | DocumentObserver::Highlights ) );
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}
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bool PresentationWidget::canUnloadPixmap( int pageNumber ) const
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{
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// can unload all pixmaps except for the currently visible one
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return pageNumber != m_frameIndex;
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}
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void PresentationWidget::setupActions( KActionCollection * collection )
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{
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m_ac = collection;
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addAction( m_ac->action( "go_previous" ) );
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addAction( m_ac->action( "go_next" ) );
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addAction( m_ac->action( "first_page" ) );
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addAction( m_ac->action( "last_page" ) );
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}
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// <widget events>
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bool PresentationWidget::event( QEvent * e )
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{
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if ( e->type() == QEvent::ToolTip )
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{
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QHelpEvent * he = (QHelpEvent*)e;
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QRect r;
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const Okular::Action * link = getLink( he->x(), he->y(), &r );
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if ( link )
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{
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QString tip = link->actionTip();
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if ( !tip.isEmpty() )
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QToolTip::showText( he->globalPos(), tip, this, r );
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}
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e->accept();
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return true;
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}
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else
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// do not stop the event
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return QDialog::event( e );
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}
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void PresentationWidget::keyPressEvent( QKeyEvent * e )
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{
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if (m_width == -1) return;
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if ( e->key() == Qt::Key_Left || e->key() == Qt::Key_Backspace || e->key() == Qt::Key_PageUp )
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slotPrevPage();
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else if ( e->key() == Qt::Key_Right || e->key() == Qt::Key_Space || e->key() == Qt::Key_PageDown )
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slotNextPage();
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else if ( e->key() == Qt::Key_Home )
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slotFirstPage();
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else if ( e->key() == Qt::Key_End )
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slotLastPage();
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else if ( e->key() == Qt::Key_Escape )
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{
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if ( !m_topBar->isHidden() )
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m_topBar->hide();
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else
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close();
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}
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}
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void PresentationWidget::wheelEvent( QWheelEvent * e )
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{
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// performance note: don't remove the clipping
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int div = e->delta() / 120;
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if ( div > 0 )
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{
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if ( div > 3 )
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div = 3;
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while ( div-- )
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slotNextPage();
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}
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else if ( div < 0 )
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{
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if ( div < -3 )
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div = -3;
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while ( div++ )
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slotPrevPage();
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}
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}
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void PresentationWidget::mousePressEvent( QMouseEvent * e )
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{
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if ( m_drawingEngine )
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{
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QRect r = routeMouseDrawingEvent( e );
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if ( r.isValid() )
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{
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m_drawingRect |= r.translated( m_frames[ m_frameIndex ]->geometry.topLeft() );
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update( m_drawingRect );
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}
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return;
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}
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// pressing left button
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if ( e->button() == Qt::LeftButton )
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{
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// if pressing on a link, skip other checks
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if ( ( m_pressedLink = getLink( e->x(), e->y() ) ) )
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return;
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// handle clicking on top-right overlay
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if ( m_overlayGeometry.contains( e->pos() ) )
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{
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overlayClick( e->pos() );
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return;
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}
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// if no other actions, go to next page
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slotNextPage();
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}
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// pressing right button
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else if ( e->button() == Qt::RightButton )
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slotPrevPage();
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}
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void PresentationWidget::mouseReleaseEvent( QMouseEvent * e )
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{
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if ( m_drawingEngine )
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{
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QRect r = routeMouseDrawingEvent( e );
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(void)r;
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if ( m_drawingEngine->creationCompleted() )
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{
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QList< Okular::Annotation * > annots = m_drawingEngine->end();
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// manually disable and re-enable the pencil mode, so we can do
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// cleaning of the actual drawer and create a new one just after
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// that - that gives continuous drawing
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togglePencilMode( false );
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togglePencilMode( true );
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foreach( Okular::Annotation * ann, annots )
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m_document->addPageAnnotation( m_frameIndex, ann );
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m_currentPageDrawings << annots;
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}
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return;
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}
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// if releasing on the same link we pressed over, execute it
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if ( m_pressedLink && e->button() == Qt::LeftButton )
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{
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const Okular::Action * link = getLink( e->x(), e->y() );
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if ( link == m_pressedLink )
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m_document->processAction( link );
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m_pressedLink = 0;
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}
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}
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void PresentationWidget::mouseMoveEvent( QMouseEvent * e )
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{
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// safety check
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if ( m_width == -1 )
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return;
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// update cursor and tooltip if hovering a link
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if ( !m_drawingEngine && Okular::Settings::slidesCursor() != Okular::Settings::EnumSlidesCursor::Hidden )
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testCursorOnLink( e->x(), e->y() );
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if ( !m_topBar->isHidden() )
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{
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// hide a shown bar when exiting the area
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if ( e->y() > ( m_topBar->height() + 1 ) )
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{
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m_topBar->hide();
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setFocus( Qt::OtherFocusReason );
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}
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}
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else
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{
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if ( m_drawingEngine && e->buttons() != Qt::NoButton )
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{
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QRect r = routeMouseDrawingEvent( e );
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{
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m_drawingRect |= r.translated( m_frames[ m_frameIndex ]->geometry.topLeft() );
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update( m_drawingRect );
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}
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}
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else
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{
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// show the bar if reaching top 2 pixels
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if ( e->y() <= (geometry().top() + 1) )
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m_topBar->show();
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// handle "dragging the wheel" if clicking on its geometry
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else if ( ( QApplication::mouseButtons() & Qt::LeftButton ) && m_overlayGeometry.contains( e->pos() ) )
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overlayClick( e->pos() );
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}
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}
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}
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void PresentationWidget::paintEvent( QPaintEvent * pe )
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{
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if (m_width == -1)
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{
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QRect d = KGlobalSettings::desktopGeometry(this);
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m_width = d.width();
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m_height = d.height();
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// create top toolbar
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m_topBar = new PresentationToolBar( this );
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m_topBar->setObjectName( "presentationBar" );
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m_topBar->setIconSize( QSize( 32, 32 ) );
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m_topBar->setMovable( false );
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m_topBar->addAction( KIcon( layoutDirection() == Qt::RightToLeft ? "go-next" : "go-previous" ), i18n("Previous Page"), this, SLOT( slotPrevPage() ) );
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m_pagesEdit = new KLineEdit( m_topBar );
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QSizePolicy sp = m_pagesEdit->sizePolicy();
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sp.setHorizontalPolicy( QSizePolicy::Minimum );
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m_pagesEdit->setSizePolicy( sp );
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QFontMetrics fm( m_pagesEdit->font() );
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QStyleOptionFrame option;
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option.initFrom(m_pagesEdit);
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m_pagesEdit->setMaximumWidth( fm.width( QString::number( m_document->pages() ) ) + 2 * style()->pixelMetric(QStyle::PM_DefaultFrameWidth, &option, m_pagesEdit) + 4 ); // the 4 comes from 2*horizontalMargin, horizontalMargin being a define in qlineedit.cpp
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QIntValidator *validator = new QIntValidator( 1, m_document->pages(), m_pagesEdit );
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m_pagesEdit->setValidator( validator );
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m_topBar->addWidget( m_pagesEdit );
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QLabel *pagesLabel = new QLabel( m_topBar );
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pagesLabel->setText( QLatin1String( " / " ) + QString::number( m_document->pages() ) + QLatin1String( " " ) );
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m_topBar->addWidget( pagesLabel );
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connect( m_pagesEdit, SIGNAL( returnPressed() ), this, SLOT( slotPageChanged() ) );
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m_topBar->addAction( KIcon( layoutDirection() == Qt::RightToLeft ? "go-previous" : "go-next" ), i18n("Next Page"), this, SLOT( slotNextPage() ) );
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m_topBar->addSeparator();
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QAction * drawingAct = m_topBar->addAction( KIcon( "draw-freehand" ), i18n( "Toggle Drawing Mode" ) );
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drawingAct->setCheckable( true );
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connect( drawingAct, SIGNAL( toggled( bool ) ), this, SLOT( togglePencilMode( bool ) ) );
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QAction * eraseDrawingAct = m_topBar->addAction( KIcon( "draw-eraser" ), i18n( "Erase Drawings" ) );
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connect( eraseDrawingAct, SIGNAL( triggered() ), this, SLOT( clearDrawings() ) );
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QWidget *spacer = new QWidget(m_topBar);
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spacer->setSizePolicy( QSizePolicy::Expanding, QSizePolicy::MinimumExpanding );
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m_topBar->addWidget( spacer );
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m_topBar->addAction( KIcon("application-exit"), i18n("Exit Presentation Mode"), this, SLOT( close() ) );
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m_topBar->setGeometry( 0, 0, m_width, 32 + 10 );
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m_topBar->setAutoFillBackground( true );
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m_topBar->hide();
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// change topbar background color
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QPalette p = m_topBar->palette();
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p.setColor( QPalette::Active, QPalette::Button, Qt::gray );
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p.setColor( QPalette::Active, QPalette::Background, Qt::darkGray );
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m_topBar->setPalette( p );
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connect( m_document, SIGNAL( linkFind() ), this, SLOT( slotFind() ) );
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// register this observer in document. events will come immediately
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m_document->addObserver( this );
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// show summary if requested
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if ( Okular::Settings::slidesShowSummary() )
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generatePage();
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}
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// check painting rect consistancy
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QRect r = pe->rect().intersect( geometry() );
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if ( r.isNull() || m_lastRenderedPixmap.isNull() )
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return;
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// blit the pixmap to the screen
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QVector<QRect> allRects = pe->region().rects();
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uint numRects = allRects.count();
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QPainter painter( this );
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for ( uint i = 0; i < numRects; i++ )
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{
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const QRect & r = allRects[i];
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if ( !r.isValid() )
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continue;
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#ifdef ENABLE_PROGRESS_OVERLAY
|
|
if ( Okular::Settings::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();
|
|
painter.drawPixmap( r.topLeft(), backPixmap, backPixmap.rect() );
|
|
} else
|
|
#endif
|
|
// copy the rendered pixmap to the screen
|
|
painter.drawPixmap( r.topLeft(), m_lastRenderedPixmap, r );
|
|
}
|
|
if ( m_drawingEngine && m_drawingRect.intersects( pe->rect() ) )
|
|
{
|
|
const QRect & geom = m_frames[ m_frameIndex ]->geometry;
|
|
painter.save();
|
|
painter.translate( geom.topLeft() );
|
|
m_drawingEngine->paint( &painter, geom.width(), geom.height(), m_drawingRect.intersect( pe->rect() ) );
|
|
painter.restore();
|
|
}
|
|
painter.end();
|
|
}
|
|
// </widget events>
|
|
|
|
|
|
const Okular::Action * PresentationWidget::getLink( int x, int y, QRect * geometry ) const
|
|
{
|
|
// no links on invalid pages
|
|
if ( geometry && !geometry->isNull() )
|
|
geometry->setRect( 0, 0, 0, 0 );
|
|
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 Okular::Page * 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
|
|
QRect d = KGlobalSettings::desktopGeometry( const_cast< PresentationWidget * >( this ) );
|
|
const Okular::ObjectRect * object = page->objectRect( Okular::ObjectRect::Action, nx, ny, d.width(), d.height() );
|
|
if ( !object )
|
|
return 0;
|
|
|
|
// compute link geometry if destination rect present
|
|
if ( geometry )
|
|
{
|
|
*geometry = object->boundingRect( frameGeometry.width(), frameGeometry.height() );
|
|
geometry->translate( frameGeometry.left(), frameGeometry.top() );
|
|
}
|
|
|
|
// return the link pointer
|
|
return (Okular::Action *)object->object();
|
|
}
|
|
|
|
void PresentationWidget::testCursorOnLink( int x, int y )
|
|
{
|
|
const Okular::Action * link = getLink( x, y, 0 );
|
|
|
|
// only react on changes (in/out from a link)
|
|
if ( (link && !m_handCursor) || (!link && m_handCursor) )
|
|
{
|
|
// change cursor shape
|
|
m_handCursor = link != 0;
|
|
setCursor( QCursor( m_handCursor ? Qt::PointingHandCursor : Qt::ArrowCursor ) );
|
|
}
|
|
}
|
|
|
|
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( (double)-xPos, (double)-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();
|
|
|
|
bool signalsBlocked = m_pagesEdit->signalsBlocked();
|
|
m_pagesEdit->blockSignals( true );
|
|
m_pagesEdit->setText( QString::number( m_frameIndex + 1 ) );
|
|
m_pagesEdit->blockSignals( signalsBlocked );
|
|
|
|
// if pixmap not inside the Okular::Page 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( QCursor( Qt::BusyCursor ) );
|
|
// request the pixmap
|
|
QLinkedList< Okular::PixmapRequest * > requests;
|
|
requests.push_back( new Okular::PixmapRequest( PRESENTATION_ID, m_frameIndex, pixW, pixH, PRESENTATION_PRIO, false ) );
|
|
// restore cursor
|
|
QApplication::restoreOverrideCursor();
|
|
// ask for next and previous page if not in low memory usage setting
|
|
if (Okular::Settings::memoryLevel() != Okular::Settings::EnumMemoryLevel::Low && Okular::Settings::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 Okular::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 Okular::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 )
|
|
{
|
|
// stop the audio playback, if any
|
|
Okular::AudioPlayer::instance()->stopPlaybacks();
|
|
// perform the page closing action, if any
|
|
if ( m_document->page( m_document->viewport().pageNumber )->pageAction( Okular::Page::Closing ) )
|
|
m_document->processAction( m_document->page( m_document->viewport().pageNumber )->pageAction( Okular::Page::Closing ) );
|
|
|
|
// remove the drawing on the old page before switching
|
|
clearDrawings();
|
|
m_document->setViewportPage( m_frameIndex, PRESENTATION_ID );
|
|
|
|
// perform the page opening action, if any
|
|
if ( m_document->page( m_frameIndex)->pageAction( Okular::Page::Opening ) )
|
|
m_document->processAction( m_document->page( m_frameIndex )->pageAction( Okular::Page::Opening ) );
|
|
|
|
}
|
|
}
|
|
|
|
void PresentationWidget::generatePage( bool disableTransition )
|
|
{
|
|
if ( m_lastRenderedPixmap.isNull() )
|
|
m_lastRenderedPixmap = QPixmap( 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 ( Okular::Settings::slidesShowProgress() && m_frameIndex != -1 )
|
|
generateOverlay();
|
|
#endif
|
|
|
|
// start transition on pages that have one
|
|
if ( !disableTransition )
|
|
{
|
|
const Okular::PageTransition * transition = m_frameIndex != -1 ?
|
|
m_frames[ m_frameIndex ]->page->transition() : 0;
|
|
if ( transition )
|
|
initTransition( transition );
|
|
else {
|
|
Okular::PageTransition trans = defaultTransition();
|
|
initTransition( &trans );
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Okular::PageTransition trans = defaultTransition( Okular::Settings::EnumSlidesTransition::Replace );
|
|
initTransition( &trans );
|
|
}
|
|
|
|
// update cursor + tooltip
|
|
if ( Okular::Settings::slidesCursor() != Okular::Settings::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 = QColor(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 okular logo in the four corners
|
|
QPixmap logo = DesktopIcon( "graphics-viewer-document", 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,
|
|
Qt::AlignHCenter | Qt::AlignVCenter, m_metaStrings[i] );
|
|
// text body
|
|
p.setPen( 128 + (127 * i) / strNum );
|
|
p.drawText( 0, m_height / 4 + strHeight * i, m_width, strHeight,
|
|
Qt::AlignHCenter | Qt::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.translate( -geom.left(), -geom.top() );
|
|
|
|
// draw the page using the shared PagePainter class
|
|
int flags = PagePainter::Accessibility | PagePainter::Highlights | PagePainter::Annotations;
|
|
PagePainter::paintPageOnPainter( &p, frame->page, PRESENTATION_ID, flags,
|
|
geom.width(), geom.height(), geom );
|
|
|
|
// 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 ) );
|
|
QVector<QRect> rects = unpainted.subtract( frame->geometry ).rects();
|
|
for ( int i = 0; i < rects.count(); i++ )
|
|
{
|
|
const QRect & r = rects[i];
|
|
p.fillRect( r, Okular::Settings::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 );
|
|
|
|
// 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 );
|
|
pixmapPainter.setRenderHints( QPainter::Antialiasing );
|
|
|
|
// 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( QColor( 0x40 ) );
|
|
pixmapPainter.drawPie( 2, 2, side - 4, side - 4, 90*16, (360-degrees)*16 );
|
|
pixmapPainter.setPen( 0x40 );
|
|
pixmapPainter.setBrush( QColor( 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( QColor( 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.toImage().scaled( side / 2, side / 2, Qt::IgnoreAspectRatio, Qt::SmoothTransformation ) );
|
|
image = image.convertToFormat( QImage::Format_ARGB32 );
|
|
|
|
// draw circular shadow using the same technique
|
|
doublePixmap.fill( Qt::black );
|
|
pixmapPainter.begin( &doublePixmap );
|
|
pixmapPainter.setPen( 0x40 );
|
|
pixmapPainter.setBrush( QColor( 0x80 ) );
|
|
pixmapPainter.drawEllipse( 0, 0, side, side );
|
|
pixmapPainter.end();
|
|
QImage shadow( doublePixmap.toImage().scaled( side / 2, side / 2, Qt::IgnoreAspectRatio, Qt::SmoothTransformation ) );
|
|
|
|
// generate a 2 colors pixmap using mixing shadow (made with highlight color)
|
|
// and image (made with highlightedText color)
|
|
QPalette pal = palette();
|
|
QColor color = pal.color( QPalette::Active, QPalette::HighlightedText );
|
|
int red = color.red(), green = color.green(), blue = color.blue();
|
|
color = pal.color( QPalette::Active, QPalette::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 = QPixmap::fromImage( image );
|
|
|
|
// start the autohide timer
|
|
repaint( m_overlayGeometry ); // toggle with next line
|
|
//update( m_overlayGeometry );
|
|
m_overlayHideTimer->start( 2500 );
|
|
#endif
|
|
}
|
|
|
|
|
|
QRect PresentationWidget::routeMouseDrawingEvent( QMouseEvent * e )
|
|
{
|
|
const QRect & geom = m_frames[ m_frameIndex ]->geometry;
|
|
const Okular::Page * page = m_frames[ m_frameIndex ]->page;
|
|
|
|
AnnotatorEngine::EventType eventType = AnnotatorEngine::Press;
|
|
if ( e->type() == QEvent::MouseMove )
|
|
eventType = AnnotatorEngine::Move;
|
|
else if ( e->type() == QEvent::MouseButtonRelease )
|
|
eventType = AnnotatorEngine::Release;
|
|
|
|
// find out the pressed button
|
|
AnnotatorEngine::Button button = AnnotatorEngine::None;
|
|
Qt::MouseButtons buttonState = ( eventType == AnnotatorEngine::Move ) ? e->buttons() : e->button();
|
|
if ( buttonState == Qt::LeftButton )
|
|
button = AnnotatorEngine::Left;
|
|
else if ( buttonState == Qt::RightButton )
|
|
button = AnnotatorEngine::Right;
|
|
static bool hasclicked = false;
|
|
if ( eventType == AnnotatorEngine::Press )
|
|
hasclicked = true;
|
|
|
|
double nX = ( (double)e->x() - (double)geom.left() ) / (double)geom.width();
|
|
double nY = ( (double)e->y() - (double)geom.top() ) / (double)geom.height();
|
|
QRect ret;
|
|
if ( hasclicked && nX >= 0 && nX < 1 && nY >= 0 && nY < 1 )
|
|
ret = m_drawingEngine->event( eventType, button, nX, nY, geom.width(), geom.height(), page );
|
|
|
|
if ( eventType == AnnotatorEngine::Release )
|
|
hasclicked = false;
|
|
|
|
return ret;
|
|
}
|
|
|
|
void PresentationWidget::startAutoChangeTimer()
|
|
{
|
|
double pageDuration = m_frameIndex >= 0 && m_frameIndex < (int)m_frames.count() ? m_frames[ m_frameIndex ]->page->duration() : -1;
|
|
if ( Okular::Settings::slidesAdvance() || pageDuration >= 0.0 )
|
|
{
|
|
double secs = pageDuration < 0.0
|
|
? Okular::Settings::slidesAdvanceTime()
|
|
: qMin<double>( pageDuration, Okular::Settings::slidesAdvanceTime() );
|
|
m_nextPageTimer->start( (int)( secs * 1000 ) );
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void PresentationWidget::slotNextPage()
|
|
{
|
|
// loop when configured
|
|
if ( m_frameIndex == (int)m_frames.count() - 1 && Okular::Settings::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
|
|
startAutoChangeTimer();
|
|
}
|
|
else
|
|
{
|
|
#ifdef ENABLE_PROGRESS_OVERLAY
|
|
if ( Okular::Settings::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
|
|
startAutoChangeTimer();
|
|
}
|
|
else
|
|
{
|
|
#ifdef ENABLE_PROGRESS_OVERLAY
|
|
if ( Okular::Settings::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 );
|
|
}
|
|
|
|
void PresentationWidget::slotDelayedEvents()
|
|
{
|
|
// inform user on how to exit from presentation mode
|
|
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(), "presentationInfo" );
|
|
}
|
|
|
|
void PresentationWidget::slotPageChanged()
|
|
{
|
|
bool ok = true;
|
|
int p = m_pagesEdit->text().toInt( &ok );
|
|
if ( !ok )
|
|
return;
|
|
|
|
changePage( p - 1 );
|
|
}
|
|
|
|
void PresentationWidget::togglePencilMode( bool on )
|
|
{
|
|
if ( on )
|
|
{
|
|
QString colorstring = Okular::Settings::slidesPencilColor().name();
|
|
// FIXME this should not be recreated every time
|
|
QDomDocument doc( "engine" );
|
|
QDomElement root = doc.createElement( "engine" );
|
|
root.setAttribute( "color", colorstring );
|
|
doc.appendChild( root );
|
|
QDomElement annElem = doc.createElement( "annotation" );
|
|
root.appendChild( annElem );
|
|
annElem.setAttribute( "type", "Ink" );
|
|
annElem.setAttribute( "color", colorstring );
|
|
annElem.setAttribute( "width", "2" );
|
|
m_drawingEngine = new SmoothPathEngine( root );
|
|
setCursor( KCursor( "pencil", Qt::ArrowCursor ) );
|
|
}
|
|
else
|
|
{
|
|
delete m_drawingEngine;
|
|
m_drawingEngine = 0;
|
|
m_drawingRect = QRect();
|
|
setCursor( Qt::ArrowCursor );
|
|
}
|
|
}
|
|
|
|
void PresentationWidget::clearDrawings()
|
|
{
|
|
m_document->removePageAnnotations( m_document->viewport().pageNumber, m_currentPageDrawings );
|
|
m_currentPageDrawings.clear();
|
|
}
|
|
|
|
void PresentationWidget::slotFind()
|
|
{
|
|
if ( !m_searchBar )
|
|
{
|
|
m_searchBar = new PresentationSearchBar( m_document, this, this );
|
|
m_searchBar->forceSnap();
|
|
}
|
|
m_searchBar->focusOnSearchEdit();
|
|
m_searchBar->show();
|
|
}
|
|
|
|
|
|
const Okular::PageTransition PresentationWidget::defaultTransition() const
|
|
{
|
|
return defaultTransition( Okular::Settings::slidesTransition() );
|
|
}
|
|
|
|
const Okular::PageTransition PresentationWidget::defaultTransition( int type ) const
|
|
{
|
|
switch ( type )
|
|
{
|
|
case Okular::Settings::EnumSlidesTransition::BlindsHorizontal:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Blinds );
|
|
transition.setAlignment( Okular::PageTransition::Horizontal );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::BlindsVertical:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Blinds );
|
|
transition.setAlignment( Okular::PageTransition::Vertical );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::BoxIn:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Box );
|
|
transition.setDirection( Okular::PageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::BoxOut:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Box );
|
|
transition.setDirection( Okular::PageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::Dissolve:
|
|
{
|
|
return Okular::PageTransition( Okular::PageTransition::Dissolve );
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::GlitterDown:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Glitter );
|
|
transition.setAngle( 270 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::GlitterRight:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Glitter );
|
|
transition.setAngle( 0 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::GlitterRightDown:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Glitter );
|
|
transition.setAngle( 315 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::Random:
|
|
{
|
|
return defaultTransition( KRandom::random() % 18 );
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::SplitHorizontalIn:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Split );
|
|
transition.setAlignment( Okular::PageTransition::Horizontal );
|
|
transition.setDirection( Okular::PageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::SplitHorizontalOut:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Split );
|
|
transition.setAlignment( Okular::PageTransition::Horizontal );
|
|
transition.setDirection( Okular::PageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::SplitVerticalIn:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Split );
|
|
transition.setAlignment( Okular::PageTransition::Vertical );
|
|
transition.setDirection( Okular::PageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::SplitVerticalOut:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Split );
|
|
transition.setAlignment( Okular::PageTransition::Vertical );
|
|
transition.setDirection( Okular::PageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::WipeDown:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Wipe );
|
|
transition.setAngle( 270 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::WipeRight:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Wipe );
|
|
transition.setAngle( 0 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::WipeLeft:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Wipe );
|
|
transition.setAngle( 180 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::WipeUp:
|
|
{
|
|
Okular::PageTransition transition( Okular::PageTransition::Wipe );
|
|
transition.setAngle( 90 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Okular::Settings::EnumSlidesTransition::Replace:
|
|
default:
|
|
return Okular::PageTransition( Okular::PageTransition::Replace );
|
|
break;
|
|
}
|
|
// should not happen, just make gcc happy
|
|
return Okular::PageTransition();
|
|
}
|
|
|
|
/** ONLY the TRANSITIONS GENERATION function from here on **/
|
|
void PresentationWidget::initTransition( const Okular::PageTransition *transition )
|
|
{
|
|
// if it's just a 'replace' transition, repaint the screen
|
|
if ( transition->type() == Okular::PageTransition::Replace )
|
|
{
|
|
update();
|
|
return;
|
|
}
|
|
|
|
const bool isInward = transition->direction() == Okular::PageTransition::Inward;
|
|
const bool isHorizontal = transition->alignment() == Okular::PageTransition::Horizontal;
|
|
const float totalTime = transition->duration();
|
|
|
|
m_transitionRects.clear();
|
|
|
|
switch( transition->type() )
|
|
{
|
|
// split: horizontal / vertical and inward / outward
|
|
case Okular::PageTransition::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 Okular::PageTransition::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 Okular::PageTransition::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 Okular::PageTransition::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 Okular::PageTransition::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 Okular::PageTransition::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 Okular::PageTransition::Fly:
|
|
|
|
case Okular::PageTransition::Push:
|
|
|
|
case Okular::PageTransition::Cover:
|
|
|
|
case Okular::PageTransition::Uncover:
|
|
|
|
case Okular::PageTransition::Fade:
|
|
|
|
default:
|
|
update();
|
|
return;
|
|
}
|
|
|
|
// send the first start to the timer
|
|
m_transitionTimer->start( 0 );
|
|
}
|
|
|
|
|
|
#include "presentationwidget.moc"
|