mirror of
https://invent.kde.org/graphics/okular
synced 2024-11-05 18:34:53 +00:00
1089 lines
39 KiB
C++
1089 lines
39 KiB
C++
/***************************************************************************
|
|
* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
|
|
* *
|
|
* 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 <kapplication.h>
|
|
#include <kcursor.h>
|
|
#include <ktoolbar.h>
|
|
#include <kdebug.h>
|
|
#include <klocale.h>
|
|
#include <kiconloader.h>
|
|
#include <kimageeffect.h>
|
|
|
|
// system includes
|
|
#include <stdlib.h>
|
|
#include <math.h>
|
|
|
|
// local includes
|
|
#include "presentationwidget.h"
|
|
#include "core/document.h" // for PRESENTATION_ID
|
|
#include "core/generator.h"
|
|
#include "core/page.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( KPDFDocument * doc )
|
|
: QWidget( 0, "presentationWidget", WDestructiveClose | WStyle_NoBorder |
|
|
WStyle_StaysOnTop | WShowModal ), m_document( doc ), m_frameIndex( -1 )
|
|
{
|
|
// set look and geometry
|
|
setBackgroundMode( Qt::NoBackground );
|
|
QDesktopWidget * d = QApplication::desktop();
|
|
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( "1leftarrow", 2, SIGNAL( clicked() ), this, SLOT( slotPrevPage() ) );
|
|
m_topBar->insertButton( "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 );
|
|
|
|
// 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_advanceTimer = new QTimer( this );
|
|
connect( m_advanceTimer, SIGNAL( timeout() ), this, SLOT( slotNextPage() ) );
|
|
|
|
// register this observer in document
|
|
m_document->addObserver( this );
|
|
|
|
// show widget and take control
|
|
showFullScreen();
|
|
if ( Settings::slidesShowSummary() )
|
|
generatePage();
|
|
else
|
|
slotNextPage();
|
|
|
|
if ( Settings::slidesCursor() == Settings::EnumSlidesCursor::HiddenDelay )
|
|
{
|
|
KCursor::setAutoHideCursor( this, true );
|
|
KCursor::setHideCursorDelay( 3000 );
|
|
}
|
|
else if ( Settings::slidesCursor() == Settings::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::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::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>
|
|
void PresentationWidget::keyPressEvent( QKeyEvent * e )
|
|
{
|
|
if ( e->key() == Key_Left || e->key() == Key_Backspace )
|
|
slotPrevPage();
|
|
else if ( e->key() == Key_Right || e->key() == Key_Space )
|
|
slotNextPage();
|
|
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-- )
|
|
slotNextPage();
|
|
}
|
|
else if ( div < 0 )
|
|
{
|
|
if ( div < -3 )
|
|
div = -3;
|
|
while ( div++ )
|
|
slotPrevPage();
|
|
}
|
|
}
|
|
|
|
void PresentationWidget::mousePressEvent( QMouseEvent * e )
|
|
{
|
|
// pressing left button
|
|
if ( e->button() == Qt::LeftButton )
|
|
{
|
|
if ( m_overlayGeometry.contains( e->pos() ) )
|
|
overlayClick( e->pos() );
|
|
else
|
|
slotNextPage();
|
|
}
|
|
// pressing right button
|
|
else if ( e->button() == Qt::RightButton )
|
|
slotPrevPage();
|
|
}
|
|
|
|
void PresentationWidget::mouseMoveEvent( QMouseEvent * e )
|
|
{
|
|
// hide a shown bar when exiting the area
|
|
if ( m_topBar->isShown() )
|
|
{
|
|
if ( e->y() > ( m_topBar->height() + 1 ) )
|
|
m_topBar->hide();
|
|
}
|
|
// show a hidden bar if mouse reaches the top of the screen
|
|
else if ( !e->y() )
|
|
m_topBar->show();
|
|
// change page if dragging the mouse over the 'wheel'
|
|
else if ( e->state() == Qt::LeftButton && m_overlayGeometry.contains( e->pos() ) )
|
|
overlayClick( e->pos() );
|
|
}
|
|
|
|
void PresentationWidget::paintEvent( QPaintEvent * pe )
|
|
{
|
|
// 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 ( 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();
|
|
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>
|
|
|
|
|
|
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 * atan2f( -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 ) )
|
|
{
|
|
QValueList< PixmapRequest * > request;
|
|
request.push_back( new PixmapRequest( PRESENTATION_ID, m_frameIndex, pixW, pixH ) );
|
|
m_document->requestPixmaps( request, false );
|
|
}
|
|
else
|
|
generatePage();
|
|
}
|
|
|
|
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 ( Settings::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 );
|
|
}
|
|
}
|
|
|
|
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, Settings::slidesBackgroundColor() );
|
|
}
|
|
}
|
|
|
|
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, 0, 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 > 36 )
|
|
{ // draw continous slices
|
|
int degrees = (int)( 360 * (float)(m_frameIndex + 1) / (float)pages );
|
|
pixmapPainter.setPen( 0x20 );
|
|
pixmapPainter.setBrush( 0x10 );
|
|
pixmapPainter.drawPie( 2, 2, side - 4, side - 4, 90*16, (360-degrees)*16 );
|
|
pixmapPainter.setBrush( 0xC0 );
|
|
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 ? 0xC0 : 0x10 );
|
|
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();
|
|
side /= 2;
|
|
QImage image( doublePixmap.convertToImage().smoothScale( side, side ) );
|
|
image.setAlphaBuffer( true );
|
|
|
|
// generate a monochrome pixmap using grey level as alpha channel and
|
|
// a saturated hilight color as base color
|
|
int hue, sat, val;
|
|
palette().active().highlight().getHsv( &hue, &sat, &val );
|
|
sat = (sat + 255) / 2;
|
|
const QColor & color = QColor( hue, sat, val, QColor::Hsv );
|
|
int red = color.red(), green = color.green(), blue = color.blue(),
|
|
pixels = image.width() * image.height();
|
|
unsigned int * data = (unsigned int *)image.bits();
|
|
for( int i = 0; i < pixels; ++i )
|
|
data[i] = qRgba( red, green, blue, data[i] & 0xFF );
|
|
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()
|
|
{
|
|
if ( m_advanceTimer->isActive() )
|
|
m_advanceTimer->stop();
|
|
|
|
// loop when configured
|
|
if ( m_frameIndex == (int)m_frames.count() - 1 && Settings::slidesLoop() )
|
|
m_frameIndex = -1;
|
|
|
|
if ( m_frameIndex < (int)m_frames.count() - 1 )
|
|
{
|
|
// go to next page
|
|
changePage( m_frameIndex + 1 );
|
|
}
|
|
else if ( m_transitionTimer->isActive() )
|
|
{
|
|
m_transitionTimer->stop();
|
|
update();
|
|
}
|
|
|
|
// we need the setFocus() call here to let KCursor::autoHide() work correctly
|
|
setFocus();
|
|
|
|
if ( Settings::slidesAdvance() )
|
|
m_advanceTimer->start( Settings::slidesAdvanceTime() * 1000 );
|
|
}
|
|
|
|
void PresentationWidget::slotPrevPage()
|
|
{
|
|
if ( m_frameIndex > 0 )
|
|
{
|
|
// go to previous page
|
|
changePage( m_frameIndex - 1 );
|
|
}
|
|
else if ( m_transitionTimer->isActive() )
|
|
{
|
|
m_transitionTimer->stop();
|
|
update();
|
|
}
|
|
}
|
|
|
|
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( Settings::slidesTransition() );
|
|
}
|
|
|
|
const KPDFPageTransition PresentationWidget::defaultTransition( int type ) const
|
|
{
|
|
switch ( type )
|
|
{
|
|
case Settings::EnumSlidesTransition::BlindsHorizontal:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Blinds );
|
|
transition.setAlignment( KPDFPageTransition::Horizontal );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::BlindsVertical:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Blinds );
|
|
transition.setAlignment( KPDFPageTransition::Vertical );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::BoxIn:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Box );
|
|
transition.setDirection( KPDFPageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::BoxOut:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Box );
|
|
transition.setDirection( KPDFPageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::Dissolve:
|
|
{
|
|
return KPDFPageTransition( KPDFPageTransition::Dissolve );
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::GlitterDown:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Glitter );
|
|
transition.setAngle( 270 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::GlitterRight:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Glitter );
|
|
transition.setAngle( 0 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::GlitterRightDown:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Glitter );
|
|
transition.setAngle( 315 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::Random:
|
|
{
|
|
return defaultTransition( KApplication::random() % 18 );
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::SplitHorizontalIn:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Split );
|
|
transition.setAlignment( KPDFPageTransition::Horizontal );
|
|
transition.setDirection( KPDFPageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::SplitHorizontalOut:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Split );
|
|
transition.setAlignment( KPDFPageTransition::Horizontal );
|
|
transition.setDirection( KPDFPageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::SplitVerticalIn:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Split );
|
|
transition.setAlignment( KPDFPageTransition::Vertical );
|
|
transition.setDirection( KPDFPageTransition::Inward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::SplitVerticalOut:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Split );
|
|
transition.setAlignment( KPDFPageTransition::Vertical );
|
|
transition.setDirection( KPDFPageTransition::Outward );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::WipeDown:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Wipe );
|
|
transition.setAngle( 270 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::WipeRight:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Wipe );
|
|
transition.setAngle( 0 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::WipeLeft:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Wipe );
|
|
transition.setAngle( 180 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::EnumSlidesTransition::WipeUp:
|
|
{
|
|
KPDFPageTransition transition( KPDFPageTransition::Wipe );
|
|
transition.setAngle( 90 );
|
|
return transition;
|
|
break;
|
|
}
|
|
case Settings::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;
|
|
|
|
// TODO: implement missing transitions
|
|
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"
|