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okular/ui/pageview.cpp
Pino Toscano 6ac2174811 move the configuration update procedures of the page view into the page view itself 
make the pageview update when changing the number of columns in overview mode

svn path=/trunk/playground/graphics/okular/; revision=599878
2006-10-28 22:58:05 +00:00

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/***************************************************************************
* Copyright (C) 2004-2005 by Enrico Ros <eros.kde@email.it> *
* Copyright (C) 2004-2006 by Albert Astals Cid <tsdgeos@terra.es> *
* *
* With portions of code from kpdf/kpdf_pagewidget.cc by: *
* Copyright (C) 2002 by Wilco Greven <greven@kde.org> *
* Copyright (C) 2003 by Christophe Devriese *
* <Christophe.Devriese@student.kuleuven.ac.be> *
* Copyright (C) 2003 by Laurent Montel <montel@kde.org> *
* Copyright (C) 2003 by Dirk Mueller <mueller@kde.org> *
* Copyright (C) 2004 by James Ots <kde@jamesots.com> *
* *
* 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 <qcursor.h>
#include <qevent.h>
#include <qimage.h>
#include <qpainter.h>
#include <qtimer.h>
#include <qset.h>
#include <qscrollbar.h>
#include <qtooltip.h>
#include <qapplication.h>
#include <qclipboard.h>
#include <QX11Info>
#include <kiconloader.h>
#include <kaction.h>
#include <kstdaccel.h>
#include <kstdaction.h>
#include <kactioncollection.h>
#include <kmenu.h>
#include <klocale.h>
#include <kfiledialog.h>
#include <kimageeffect.h>
#include <kselectaction.h>
#include <ktoggleaction.h>
#include <ktoolinvocation.h>
#include <kdebug.h>
#include <kmessagebox.h>
#include <kicon.h>
#include <QtDBus/QtDBus>
// system includes
#include <math.h>
#include <stdlib.h>
// local includes
#include "pageview.h"
#include "pageviewutils.h"
#include "pagepainter.h"
#include "core/annotations.h"
#include "annotwindow.h" //"embeddedannotationdialog.h"
#include "annotationpropertiesdialog.h"
#include "pageviewannotator.h"
#include "core/document.h"
#include "core/page.h"
#include "core/misc.h"
#include "core/link.h"
#include "core/generator.h"
#include "settings.h"
#include <config-okular.h>
#ifdef HAVE_XRENDER
#include <X11/Xlib.h>
#include <X11/extensions/Xrender.h>
#include <fixx11h.h>
#endif
#define ROUND(x) (int(x + 0.5))
static int pageflags = PagePainter::Accessibility | PagePainter::EnhanceLinks |
PagePainter::EnhanceImages | PagePainter::Highlights |
PagePainter::TextSelection | PagePainter::Annotations;
// structure used internally by PageView for data storage
class PageViewPrivate
{
public:
// the document, pageviewItems and the 'visible cache'
Okular::Document * document;
QVector< PageViewItem * > items;
QLinkedList< PageViewItem * > visibleItems;
// view layout (columns and continuous in Settings), zoom and mouse
PageView::ZoomMode zoomMode;
float zoomFactor;
PageView::MouseMode mouseMode;
QPoint mouseGrabPos;
QPoint mousePressPos;
QPoint mouseSelectPos;
bool mouseMidZooming;
int mouseMidLastY;
bool mouseSelecting;
QRect mouseSelectionRect;
QColor mouseSelectionColor;
bool mouseTextSelecting;
QSet< int > pagesWithTextSelection;
bool mouseOnRect;
// type ahead find
bool typeAheadActive;
QString typeAheadString;
QTimer * findTimeoutTimer;
// viewport move
bool viewportMoveActive;
QTime viewportMoveTime;
QPoint viewportMoveDest;
QTimer * viewportMoveTimer;
// auto scroll
int scrollIncrement;
QTimer * autoScrollTimer;
// annotations
PageViewAnnotator * annotator;
//text annotation dialogs list
QList<AnnotWindow *> m_annowindows;
// other stuff
QTimer * delayResizeTimer;
bool dirtyLayout;
bool blockViewport; // prevents changes to viewport
bool blockPixmapsRequest; // prevent pixmap requests
PageViewMessage * messageWindow; // in pageviewutils.h
// actions
KSelectAction * aOrientation;
KSelectAction * aPaperSizes;
KAction * aMouseNormal;
KAction * aMouseSelect;
KAction * aMouseTextSelect;
KToggleAction * aToggleAnnotator;
KSelectAction * aZoom;
KToggleAction * aZoomFitWidth;
KToggleAction * aZoomFitPage;
KToggleAction * aZoomFitText;
KSelectAction * aRenderMode;
KToggleAction * aViewContinuous;
KAction * aPrevAction;
KActionCollection * actionCollection;
int setting_renderMode;
int setting_renderCols;
};
class PageViewWidget : public QWidget
{
public:
PageViewWidget(PageView *pv) : QWidget(pv), m_pageView(pv) {}
protected:
bool event( QEvent *e )
{
if ( e->type() == QEvent::ToolTip )
{
QHelpEvent * he = (QHelpEvent*)e;
PageViewItem * pageItem = m_pageView->pickItemOnPoint( he->x(), he->y() );
const Okular::ObjectRect * rect = 0;
const Okular::Link * link = 0;
const Okular::Annotation * ann = 0;
if ( pageItem )
{
double nX = (double)( he->x() - pageItem->geometry().left() ) / (double)pageItem->width();
double nY = (double)( he->y() - pageItem->geometry().top() ) / (double)pageItem->height();
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::OAnnotation, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
ann = static_cast< const Okular::AnnotationObjectRect * >( rect )->annotation();
else
{
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::Link, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
link = static_cast< const Okular::Link * >( rect->pointer() );
}
}
if ( ann )
{
QRect r = rect->boundingRect( pageItem->width(), pageItem->height() );
r.translate( pageItem->geometry().left(), pageItem->geometry().top() );
QString tip = QString( "<qt><b>%1</b><hr>%2</qt>" )
.arg( i18n( "Author: %1", ann->author ), ann->contents );
QToolTip::showText( he->globalPos(), tip, this, r );
}
else if ( link )
{
QRect r = rect->boundingRect( pageItem->width(), pageItem->height() );
r.translate( pageItem->geometry().left(), pageItem->geometry().top() );
QString tip = link->linkTip();
if ( !tip.isEmpty() )
QToolTip::showText( he->globalPos(), tip, this, r );
}
e->accept();
return true;
}
else
// do not stop the event
return QWidget::event( e );
}
// viewport events
void paintEvent( QPaintEvent *e )
{
m_pageView->contentsPaintEvent(e);
}
void mouseMoveEvent( QMouseEvent *e )
{
m_pageView->contentsMouseMoveEvent(e);
}
void mousePressEvent( QMouseEvent *e )
{
m_pageView->contentsMousePressEvent(e);
}
void mouseReleaseEvent( QMouseEvent *e )
{
m_pageView->contentsMouseReleaseEvent(e);
}
private:
PageView *m_pageView;
};
/* PageView. What's in this file? -> quick overview.
* Code weight (in rows) and meaning:
* 160 - constructor and creating actions plus their connected slots (empty stuff)
* 70 - DocumentObserver inherited methodes (important)
* 550 - events: mouse, keyboard, drag/drop
* 170 - slotRelayoutPages: set contents of the scrollview on continuous/single modes
* 100 - zoom: zooming pages in different ways, keeping update the toolbar actions, etc..
* other misc functions: only slotRequestVisiblePixmaps and pickItemOnPoint noticeable,
* and many insignificant stuff like this comment :-)
*/
PageView::PageView( QWidget *parent, Okular::Document *document )
: QScrollArea( parent )
{
// create and initialize private storage structure
d = new PageViewPrivate();
d->document = document;
d->aOrientation = 0;
d->aRenderMode = 0;
d->zoomMode = (PageView::ZoomMode) Okular::Settings::zoomMode();
d->zoomFactor = Okular::Settings::zoomFactor();
d->mouseMode = MouseNormal;
d->mouseMidZooming = false;
d->mouseSelecting = false;
d->mouseTextSelecting = false;
d->mouseOnRect = false;
d->typeAheadActive = false;
d->findTimeoutTimer = 0;
d->viewportMoveActive = false;
d->viewportMoveTimer = 0;
d->scrollIncrement = 0;
d->autoScrollTimer = 0;
d->annotator = 0;
d->delayResizeTimer = 0;
d->dirtyLayout = false;
d->blockViewport = false;
d->blockPixmapsRequest = false;
d->messageWindow = new PageViewMessage(this);
d->aPrevAction = 0;
d->aPaperSizes=0;
d->setting_renderMode = Okular::Settings::renderMode();
d->setting_renderCols = Okular::Settings::viewColumns();
setAttribute( Qt::WA_StaticContents );
setObjectName( QLatin1String( "okular::pageView" ) );
// widget setup: setup focus, accept drops and track mouse
setWidget(new PageViewWidget(this));
viewport()->setFocusProxy( this );
viewport()->setFocusPolicy( Qt::StrongFocus );
widget()->setAttribute( Qt::WA_OpaquePaintEvent );
widget()->setAttribute( Qt::WA_NoSystemBackground );
setAcceptDrops( true );
widget()->setMouseTracking( true );
setWidgetResizable(true);
// conntect the padding of the viewport to pixmaps requests
connect(horizontalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(slotRequestVisiblePixmaps()));
connect(verticalScrollBar(), SIGNAL(valueChanged(int)), this, SLOT(slotRequestVisiblePixmaps()));
// set a corner button to resize the view to the page size
// QPushButton * resizeButton = new QPushButton( viewport() );
// resizeButton->setPixmap( SmallIcon("crop") );
// setCornerWidget( resizeButton );
// resizeButton->setEnabled( false );
// connect(...);
setAttribute( Qt::WA_InputMethodEnabled, true );
// schedule the welcome message
QMetaObject::invokeMethod(this, "slotShowWelcome", Qt::QueuedConnection);
}
PageView::~PageView()
{
// delete the local storage structure
qDeleteAll(d->m_annowindows);
d->document->removeObserver( this );
delete d;
}
void PageView::setupActions( KActionCollection * ac )
{
d->actionCollection = ac;
d->aOrientation=new KSelectAction( i18n( "&Orientation" ), ac, "view_orientation" );
d->aPaperSizes=new KSelectAction( i18n( "&Paper Size" ), ac, "view_papersizes" );
QStringList rotations;
rotations.append( i18n( "Default" ) );
rotations.append( i18n( "Rotated 90 Degrees" ) );
rotations.append( i18n( "Rotated 180 Degrees" ) );
rotations.append( i18n( "Rotated 270 Degrees" ) );
d->aOrientation->setItems( rotations );
connect( d->aOrientation , SIGNAL( triggered( int ) ),
d->document , SLOT( slotRotation( int ) ) );
connect( d->aPaperSizes , SIGNAL( triggered( int ) ),
d->document , SLOT( slotPaperSizes( int ) ) );
d->aOrientation->setEnabled(d->document->supportsRotation());
bool paperSizes=d->document->supportsPaperSizes();
d->aPaperSizes->setEnabled(paperSizes);
if (paperSizes)
d->aPaperSizes->setItems(d->document->paperSizes());
// Zoom actions ( higher scales takes lots of memory! )
d->aZoom = new KSelectAction( KIcon( "viewmag" ), i18n( "Zoom" ), ac, "zoom_to" );
d->aZoom->setEditable( true );
d->aZoom->setMaxComboViewCount( 13 );
connect( d->aZoom, SIGNAL( triggered(QAction *) ), this, SLOT( slotZoom() ) );
updateZoomText();
KStdAction::zoomIn( this, SLOT( slotZoomIn() ), ac, "zoom_in" );
KStdAction::zoomOut( this, SLOT( slotZoomOut() ), ac, "zoom_out" );
d->aZoomFitWidth = new KToggleAction( KIcon( "view_fit_width" ), i18n("Fit to Page &Width"), ac, "zoom_fit_width" );
connect( d->aZoomFitWidth, SIGNAL( toggled( bool ) ), SLOT( slotFitToWidthToggled( bool ) ) );
d->aZoomFitPage = new KToggleAction( KIcon( "view_fit_window" ), i18n("Fit to &Page"), ac, "zoom_fit_page" );
connect( d->aZoomFitPage, SIGNAL( toggled( bool ) ), SLOT( slotFitToPageToggled( bool ) ) );
d->aZoomFitText = new KToggleAction( KIcon( "viewmagfit" ), i18n("Fit to &Text"), ac, "zoom_fit_text" );
connect( d->aZoomFitText, SIGNAL( toggled( bool ) ), SLOT( slotFitToTextToggled( bool ) ) );
// View-Layout actions
QStringList renderModes;
renderModes.append( i18n( "Single" ) );
renderModes.append( i18n( "Facing" ) );
renderModes.append( i18n( "Overview" ) );
d->aRenderMode = new KSelectAction( KIcon( "view_left_right" ), i18n("&Render Mode"), ac, "view_render_mode" );
connect( d->aRenderMode, SIGNAL( triggered( int ) ), SLOT( slotRenderMode( int ) ) );
d->aRenderMode->setItems( renderModes );
d->aRenderMode->setCurrentItem( Okular::Settings::renderMode() );
d->aViewContinuous = new KToggleAction( KIcon( "view_text" ), i18n("&Continuous"), ac, "view_continuous" );
connect( d->aViewContinuous, SIGNAL( toggled( bool ) ), SLOT( slotContinuousToggled( bool ) ) );
d->aViewContinuous->setChecked( Okular::Settings::viewContinuous() );
// Mouse-Mode actions
QActionGroup * actGroup = new QActionGroup( this );
actGroup->setExclusive( true );
d->aMouseNormal = new KAction( KIcon( "mouse" ), i18n("&Browse Tool"), ac, "mouse_drag" );
connect( d->aMouseNormal, SIGNAL( triggered() ), this, SLOT( slotSetMouseNormal() ) );
d->aMouseNormal->setCheckable( true );
d->aMouseNormal->setActionGroup( actGroup );
d->aMouseNormal->setChecked( true );
KAction * mz = new KAction( KIcon( "viewmag" ), i18n("&Zoom Tool"), ac, "mouse_zoom" );
connect( mz, SIGNAL( triggered() ), this, SLOT( slotSetMouseZoom() ) );
mz->setCheckable( true );
mz->setActionGroup( actGroup );
d->aMouseSelect = new KAction( KIcon( "frame_edit" ), i18n("&Select Tool"), ac, "mouse_select" );
connect( d->aMouseSelect, SIGNAL( triggered() ), this, SLOT( slotSetMouseSelect() ) );
d->aMouseSelect->setCheckable( true );
d->aMouseSelect->setActionGroup( actGroup );
d->aMouseTextSelect = new KAction( KIcon( "text" ), i18n("&Text Selection Tool"), ac, "mouse_textselect" );
connect( d->aMouseTextSelect, SIGNAL( triggered() ), this, SLOT( slotSetMouseTextSelect() ) );
d->aMouseTextSelect->setCheckable( true );
d->aMouseTextSelect->setActionGroup( actGroup );
d->aToggleAnnotator = new KToggleAction( KIcon( "pencil" ), i18n("&Review"), ac, "mouse_toggle_annotate" );
d->aToggleAnnotator->setCheckable( true );
connect( d->aToggleAnnotator, SIGNAL( toggled( bool ) ), SLOT( slotToggleAnnotator( bool ) ) );
d->aToggleAnnotator->setShortcut( Qt::Key_F6 );
// Other actions
KAction * su = new KAction( i18n("Scroll Up"), ac, "view_scroll_up" );
connect( su, SIGNAL( triggered() ), this, SLOT( slotScrollUp() ) );
su->setShortcut( QKeySequence(Qt::SHIFT + Qt::Key_Up) );
addAction(su);
KAction * sd = new KAction( i18n("Scroll Down"), ac, "view_scroll_down" );
connect( sd, SIGNAL( triggered() ), this, SLOT( slotScrollDown() ) );
sd->setShortcut( QKeySequence(Qt::SHIFT + Qt::Key_Down) );
addAction(sd);
}
bool PageView::canFitPageWidth()
{
return Okular::Settings::renderMode() != 0 || d->zoomMode != ZoomFitWidth;
}
void PageView::fitPageWidth( int page )
{
// zoom: Fit Width, columns: 1. setActions + relayout + setPage + update
d->zoomMode = ZoomFitWidth;
Okular::Settings::setRenderMode( 0 );
d->aZoomFitWidth->setChecked( true );
d->aZoomFitPage->setChecked( false );
d->aZoomFitText->setChecked( false );
d->aRenderMode->setCurrentItem( 0 );
viewport()->setUpdatesEnabled( false );
slotRelayoutPages();
viewport()->setUpdatesEnabled( true );
d->document->setViewportPage( page );
updateZoomText();
setFocus();
}
void PageView::setAnnotsWindow(Okular::Annotation * annot)
{
if(!annot)
return;
//find the annot window
AnnotWindow* existWindow=0;
foreach(AnnotWindow* tempwnd, d->m_annowindows)
{
if(tempwnd)
{
if(tempwnd->m_annot==annot)
{
existWindow=tempwnd;
break;
}
}
}
/* if(annot->window.flags & Annotation::Hidden)
{
if(existWindow)
{
existWindow->hide();
}
}
else
{*/
if(existWindow==0)
{
existWindow=new AnnotWindow(this,annot);
d->m_annowindows<<existWindow;
}
existWindow->show();
//}
return;
}
void PageView::displayMessage( const QString & message,PageViewMessage::Icon icon,int duration )
{
if ( !Okular::Settings::showOSD() )
{
if (icon == PageViewMessage::Error)
KMessageBox::error( this, message );
else
return;
}
// hide messageWindow if string is empty
if ( message.isEmpty() )
return d->messageWindow->hide();
// display message (duration is length dependant)
if (duration==-1)
duration = 500 + 100 * message.length();
d->messageWindow->display( message, icon, duration );
}
void PageView::reparseConfig()
{
// set the scroll bars policies
Qt::ScrollBarPolicy scrollBarMode = Okular::Settings::showScrollBars() ?
Qt::ScrollBarAsNeeded : Qt::ScrollBarAlwaysOff;
if ( horizontalScrollBarPolicy() != scrollBarMode )
{
setHorizontalScrollBarPolicy( scrollBarMode );
setVerticalScrollBarPolicy( scrollBarMode );
}
if ( Okular::Settings::renderMode() == 2 &&
( (int)Okular::Settings::viewColumns() != d->setting_renderCols ) )
{
d->setting_renderMode = Okular::Settings::renderMode();
d->setting_renderCols = Okular::Settings::viewColumns();
slotRelayoutPages();
}
}
//BEGIN DocumentObserver inherited methods
void PageView::notifySetup( const QVector< Okular::Page * > & pageSet, bool documentChanged )
{
// reuse current pages if nothing new
if ( ( pageSet.count() == d->items.count() ) && !documentChanged )
{
int count = pageSet.count();
for ( int i = 0; (i < count) && !documentChanged; i++ )
if ( (int)pageSet[i]->number() != d->items[i]->pageNumber() )
documentChanged = true;
if ( !documentChanged )
return;
}
// delete all widgets (one for each page in pageSet)
QVector< PageViewItem * >::iterator dIt = d->items.begin(), dEnd = d->items.end();
for ( ; dIt != dEnd; ++dIt )
delete *dIt;
d->items.clear();
d->visibleItems.clear();
// create children widgets
QVector< Okular::Page * >::const_iterator setIt = pageSet.begin(), setEnd = pageSet.end();
for ( ; setIt != setEnd; ++setIt )
{
d->items.push_back( new PageViewItem( *setIt ) );
#ifdef PAGEVIEW_DEBUG
kDebug() << "geom for " << d->items.last()->pageNumber() << " is " << d->items.last()->geometry() << endl;
#endif
}
// invalidate layout so relayout/repaint will happen on next viewport change
if ( pageSet.count() > 0 )
// TODO for Enrico: Check if doing always the slotRelayoutPages() is not
// suboptimal in some cases, i'd say it is not but a recheck will not hurt
// Need slotRelayoutPages() here instead of d->dirtyLayout = true
// because opening a pdf from another pdf will not trigger a viewportchange
// so pages are never relayouted
QMetaObject::invokeMethod(this, "slotRelayoutPages", Qt::QueuedConnection);
else
{
// update the mouse cursor when closing because we may have close through a link and
// want the cursor to come back to the normal cursor
updateCursor( widget()->mapFromGlobal( QCursor::pos() ) );
setWidgetResizable(true);
}
// OSD to display pages
if ( documentChanged && pageSet.count() > 0 && Okular::Settings::showOSD() )
d->messageWindow->display(
i18np(" Loaded a one-page document.",
" Loaded a %n-page document.",
pageSet.count() ),
PageViewMessage::Info, 4000 );
d->aOrientation->setEnabled(d->document->supportsRotation());
bool paperSizes=d->document->supportsPaperSizes();
d->aPaperSizes->setEnabled(paperSizes);
// set the new paper sizes:
// - if the generator supports them
// - if the document changed
if (paperSizes && documentChanged)
d->aPaperSizes->setItems(d->document->paperSizes());
}
void PageView::notifyViewportChanged( bool smoothMove )
{
// if we are the one changing viewport, skip this nofity
if ( d->blockViewport )
return;
// block setViewport outgoing calls
d->blockViewport = true;
// find PageViewItem matching the viewport description
const Okular::DocumentViewport & vp = d->document->viewport();
PageViewItem * item = 0;
QVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
if ( (*iIt)->pageNumber() == vp.pageNumber )
{
item = *iIt;
break;
}
if ( !item )
{
kDebug() << "viewport has no matching item!" << endl;
d->blockViewport = false;
return;
}
#ifdef PAGEVIEW_DEBUG
kDebug() << "document viewport changed\n";
#endif
// relayout in "Single Pages" mode or if a relayout is pending
d->blockPixmapsRequest = true;
if ( !Okular::Settings::viewContinuous() || d->dirtyLayout )
slotRelayoutPages();
// restore viewport center or use default {x-center,v-top} alignment
const QRect & r = item->geometry();
int newCenterX = r.left(),
newCenterY = r.top();
if ( vp.rePos.enabled )
{
if ( vp.rePos.pos == Okular::DocumentViewport::Center )
{
newCenterX += (int)( vp.rePos.normalizedX * (double)r.width() );
newCenterY += (int)( vp.rePos.normalizedY * (double)r.height() );
}
else
{
// TopLeft
newCenterX += (int)( vp.rePos.normalizedX * (double)r.width() + viewport()->width() / 2 );
newCenterY += (int)( vp.rePos.normalizedY * (double)r.height() + viewport()->height() / 2 );
}
}
else
{
newCenterX += r.width() / 2;
newCenterY += viewport()->height() / 2 - 10;
}
// if smooth movement requested, setup parameters and start it
if ( smoothMove )
{
d->viewportMoveActive = true;
d->viewportMoveTime.start();
d->viewportMoveDest.setX( newCenterX );
d->viewportMoveDest.setY( newCenterY );
if ( !d->viewportMoveTimer )
{
d->viewportMoveTimer = new QTimer( this );
connect( d->viewportMoveTimer, SIGNAL( timeout() ),
this, SLOT( slotMoveViewport() ) );
}
d->viewportMoveTimer->start( 25 );
verticalScrollBar()->setEnabled( false );
horizontalScrollBar()->setEnabled( false );
}
else
center( newCenterX, newCenterY );
d->blockPixmapsRequest = false;
// request visible pixmaps in the current viewport and recompute it
slotRequestVisiblePixmaps();
// enable setViewport calls
d->blockViewport = false;
// update zoom text if in a ZoomFit/* zoom mode
if ( d->zoomMode != ZoomFixed )
updateZoomText();
// since the page has moved below cursor, update it
updateCursor( widget()->mapFromGlobal( QCursor::pos() ) );
}
void PageView::notifyPageChanged( int pageNumber, int changedFlags )
{
// only handle pixmap / highlight changes notifies
if ( changedFlags & DocumentObserver::Bookmark )
return;
// iterate over visible items: if page(pageNumber) is one of them, repaint it
QLinkedList< PageViewItem * >::iterator iIt = d->visibleItems.begin(), iEnd = d->visibleItems.end();
for ( ; iIt != iEnd; ++iIt )
if ( (*iIt)->pageNumber() == pageNumber )
{
// update item's rectangle plus the little outline
QRect expandedRect = (*iIt)->geometry();
expandedRect.adjust( -1, -1, 3, 3 );
widget()->update( expandedRect );
// if we were "zoom-dragging" do not overwrite the "zoom-drag" cursor
if ( cursor().shape() != Qt::SizeVerCursor )
{
// since the page has been regenerated below cursor, update it
updateCursor( widget()->mapFromGlobal( QCursor::pos() ) );
}
break;
}
}
void PageView::notifyContentsCleared( int changedFlags )
{
// if pixmaps were cleared, re-ask them
if ( changedFlags & DocumentObserver::Pixmap )
QMetaObject::invokeMethod(this, "slotRequestVisiblePixmaps", Qt::QueuedConnection);
}
bool PageView::canUnloadPixmap( int pageNumber )
{
// if the item is visible, forbid unloading
QLinkedList< PageViewItem * >::iterator vIt = d->visibleItems.begin(), vEnd = d->visibleItems.end();
for ( ; vIt != vEnd; ++vIt )
if ( (*vIt)->pageNumber() == pageNumber )
return false;
// if hidden premit unloading
return true;
}
//END DocumentObserver inherited methods
//BEGIN widget events
void PageView::contentsPaintEvent(QPaintEvent *pe)
{
if ( d->document->handleEvent( pe ) )
{
// create the rect into contents from the clipped screen rect
QRect viewportRect = viewport()->rect();
viewportRect.translate( horizontalScrollBar()->value(), verticalScrollBar()->value() );
QRect contentsRect = pe->rect().intersect( viewportRect );
if ( !contentsRect.isValid() )
return;
#ifdef PAGEVIEW_DEBUG
kDebug() << "paintevent " << contentsRect << endl;
#endif
// create the screen painter. a pixel painted at contentsX,contentsY
// appears to the top-left corner of the scrollview.
QPainter screenPainter( widget() );
// selectionRect is the normalized mouse selection rect
QRect selectionRect = d->mouseSelectionRect;
if ( !selectionRect.isNull() )
selectionRect = selectionRect.normalized();
// selectionRectInternal without the border
QRect selectionRectInternal = selectionRect;
selectionRectInternal.adjust( 1, 1, -1, -1 );
// color for blending
QColor selBlendColor = (selectionRect.width() > 8 || selectionRect.height() > 8) ?
d->mouseSelectionColor : Qt::red;
// subdivide region into rects
QVector<QRect> allRects = pe->region().rects();
uint numRects = allRects.count();
// preprocess rects area to see if it worths or not using subdivision
uint summedArea = 0;
for ( uint i = 0; i < numRects; i++ )
{
const QRect & r = allRects[i];
summedArea += r.width() * r.height();
}
// very elementary check: SUMj(Region[j].area) is less than boundingRect.area
bool useSubdivision = summedArea < (0.6 * contentsRect.width() * contentsRect.height());
if ( !useSubdivision )
numRects = 1;
// iterate over the rects (only one loop if not using subdivision)
for ( uint i = 0; i < numRects; i++ )
{
if ( useSubdivision )
{
// set 'contentsRect' to a part of the sub-divided region
contentsRect = allRects[i].normalized().intersect( viewportRect );
if ( !contentsRect.isValid() )
continue;
}
#ifdef PAGEVIEW_DEBUG
kDebug() << contentsRect << endl;
#endif
// note: this check will take care of all things requiring alpha blending (not only selection)
bool wantCompositing = !selectionRect.isNull() && contentsRect.intersects( selectionRect );
if ( wantCompositing && Okular::Settings::enableCompositing() )
{
// create pixmap and open a painter over it (contents{left,top} becomes pixmap {0,0})
QPixmap doubleBuffer( contentsRect.size() );
QPainter pixmapPainter( &doubleBuffer );
pixmapPainter.translate( -contentsRect.left(), -contentsRect.top() );
// 1) Layer 0: paint items and clear bg on unpainted rects
drawDocumentOnPainter( contentsRect, &pixmapPainter );
// 2) Layer 1a: paint (blend) transparent selection
if ( !selectionRect.isNull() && selectionRect.intersects( contentsRect ) &&
!selectionRectInternal.contains( contentsRect ) )
{
QRect blendRect = selectionRectInternal.intersect( contentsRect );
// skip rectangles covered by the selection's border
if ( blendRect.isValid() )
{
#ifdef HAVE_XRENDER
// grab current pixmap into a new one to colorize contents
QPixmap blendedPixmap( blendRect.width(), blendRect.height() );
QPainter p( &blendedPixmap );
p.drawPixmap( 0, 0, doubleBuffer,
blendRect.left() - contentsRect.left(), blendRect.top() - contentsRect.top(),
blendRect.width(), blendRect.height() );
// calculate the color
XRenderColor col;
float alpha = 0.2f;
QColor blCol = selBlendColor.dark( 140 );
col.red = (int)((float)( (blCol.red() << 8) | blCol.red() ) * alpha);
col.green = (int)((float)( (blCol.green() << 8) | blCol.green() )*alpha );
col.blue = (int)((float)( (blCol.blue() << 8) | blCol.blue())*alpha );
col.alpha = (int)(alpha*(float)0xffff);
XRenderFillRectangle(x11Info().display(), PictOpOver, blendedPixmap.x11PictureHandle(), &col,
0,0, blendRect.width(), blendRect.height());
// copy the blended pixmap back to its place
pixmapPainter.drawPixmap( blendRect.left(), blendRect.top(), blendedPixmap );
#else
// grab current pixmap into a new image to colorize contents
QPixmap blendedPixmap( blendRect.width(), blendRect.height() );
QPainter p( &blendedPixmap );
p.drawPixmap( 0, 0, doubleBuffer,
blendRect.left() - contentsRect.left(), blendRect.top() - contentsRect.top(),
blendRect.width(), blendRect.height() );
// blend selBlendColor into the background pixmap
QImage blendedImage = blendedPixmap.toImage();
KImageEffect::blend( selBlendColor.dark( 140 ), blendedImage, 0.2 );
pixmapPainter.drawImage( blendRect.left(), blendRect.top(), blendedImage );
#endif
}
// draw border (red if the selection is too small)
pixmapPainter.setPen( selBlendColor );
pixmapPainter.drawRect( selectionRect );
}
// 3) Layer 1: give annotator painting control
if ( d->annotator && d->annotator->routePaints( contentsRect ) )
d->annotator->routePaint( &pixmapPainter, contentsRect );
// 4) Layer 2: overlays
if ( Okular::Settings::debugDrawBoundaries() )
{
pixmapPainter.setPen( Qt::blue );
pixmapPainter.drawRect( contentsRect );
}
// finish painting and draw contents
pixmapPainter.end();
screenPainter.drawPixmap( contentsRect.left(), contentsRect.top(), doubleBuffer );
}
else
{
// 1) Layer 0: paint items and clear bg on unpainted rects
drawDocumentOnPainter( contentsRect, &screenPainter );
// 2) Layer 1: paint opaque selection
if ( !selectionRect.isNull() && selectionRect.intersects( contentsRect ) &&
!selectionRectInternal.contains( contentsRect ) )
{
screenPainter.setPen( palette().color( QPalette::Active, QPalette::Highlight ).dark(110) );
screenPainter.drawRect( selectionRect );
}
// 3) Layer 1: give annotator painting control
if ( d->annotator && d->annotator->routePaints( contentsRect ) )
d->annotator->routePaint( &screenPainter, contentsRect );
// 4) Layer 2: overlays
if ( Okular::Settings::debugDrawBoundaries() )
{
screenPainter.setPen( Qt::red );
screenPainter.drawRect( contentsRect );
}
}
}
}
}
void PageView::resizeEvent( QResizeEvent * event)
{
if (d->document->handleEvent( event ) )
{
if ( d->items.isEmpty() )
return;
// start a timer that will refresh the pixmap after 0.2s
if ( !d->delayResizeTimer )
{
d->delayResizeTimer = new QTimer( this );
d->delayResizeTimer->setSingleShot( true );
connect( d->delayResizeTimer, SIGNAL( timeout() ), this, SLOT( slotRelayoutPages() ) );
}
d->delayResizeTimer->start( 200 );
}
}
void PageView::keyPressEvent( QKeyEvent * e )
{
if (d->document->handleEvent( e ) )
{
e->accept();
// if performing a selection or dyn zooming, disable keys handling
if ( d->mouseSelecting || d->mouseMidZooming )
return;
// handle 'find as you type' (based on khtml/khtmlview.cpp)
if( d->typeAheadActive )
{
// backspace: remove a char and search or terminates search
if( e->key() == Qt::Key_Backspace )
{
if( d->typeAheadString.length() > 1 )
{
d->typeAheadString = d->typeAheadString.left( d->typeAheadString.length() - 1 );
bool found = d->document->searchText( PAGEVIEW_SEARCH_ID, d->typeAheadString, true, false,
Okular::Document::NextMatch, true, qRgb( 128, 255, 128 ), true );
KLocalizedString status = found ? ki18n("Text found: \"%1\".") : ki18n("Text not found: \"%1\".");
d->messageWindow->display( status.subs(d->typeAheadString.toLower()).toString(),
found ? PageViewMessage::Find : PageViewMessage::Warning, 4000 );
d->findTimeoutTimer->start( 3000 );
}
else
{
slotStopFindAhead();
d->document->resetSearch( PAGEVIEW_SEARCH_ID );
}
}
// go to next occurrency
else if( e->key() == d->actionCollection->action( "find_next" )->shortcut().keyQt() )
{
// part doesn't get this key event because of the keyboard grab
d->findTimeoutTimer->stop(); // restore normal operation during possible messagebox is displayed
// (1/4) it is needed to grab the keyboard becase people may have Space assigned
// to a accel and without grabbing the keyboard you can not vim-search for space
// because it activates the accel
releaseKeyboard();
if ( d->document->continueSearch( PAGEVIEW_SEARCH_ID ) )
d->messageWindow->display( i18n("Text found: \"%1\".", d->typeAheadString.toLower()),
PageViewMessage::Find, 3000 );
d->findTimeoutTimer->start( 3000 );
// (2/4) it is needed to grab the keyboard becase people may have Space assigned
// to a accel and without grabbing the keyboard you can not vim-search for space
// because it activates the accel
grabKeyboard();
}
// esc and return: end search
else if( e->key() == Qt::Key_Escape || e->key() == Qt::Key_Return )
{
slotStopFindAhead();
}
// other key: add to text and search
else if( !e->text().isEmpty() )
{
d->typeAheadString += e->text();
doTypeAheadSearch();
}
return;
}
else if( e->key() == '/' && d->document->isOpened() && d->document->supportsSearching() )
{
// stop scrolling the page (if doing it)
if ( d->autoScrollTimer )
{
d->scrollIncrement = 0;
d->autoScrollTimer->stop();
}
// start type-adeas search
d->typeAheadString = QString();
d->messageWindow->display( i18n("Starting -- find text as you type"), PageViewMessage::Find, 3000 );
d->typeAheadActive = true;
if ( !d->findTimeoutTimer )
{
// create the timer on demand
d->findTimeoutTimer = new QTimer( this );
d->findTimeoutTimer->setSingleShot( true );
connect( d->findTimeoutTimer, SIGNAL( timeout() ), this, SLOT( slotStopFindAhead() ) );
}
d->findTimeoutTimer->start( 3000 );
// (3/4) it is needed to grab the keyboard becase people may have Space assigned
// to a accel and without grabbing the keyboard you can not vim-search for space
// because it activates the accel
grabKeyboard();
return;
}
// if viewport is moving, disable keys handling
if ( d->viewportMoveActive )
return;
// move/scroll page by using keys
switch ( e->key() )
{
case Qt::Key_Up:
case Qt::Key_PageUp:
case Qt::Key_Backspace:
// if in single page mode and at the top of the screen, go to \ page
if ( Okular::Settings::viewContinuous() || verticalScrollBar()->value() > verticalScrollBar()->minimum() )
{
if ( e->key() == Qt::Key_Up )
verticalScrollBar()->triggerAction( QScrollBar::SliderSingleStepSub );
else
verticalScrollBar()->triggerAction( QScrollBar::SliderPageStepSub );
}
else if ( d->document->currentPage() > 0 )
{
// more optimized than document->setPrevPage and then move view to bottom
Okular::DocumentViewport newViewport = d->document->viewport();
newViewport.pageNumber -= viewColumns();
if ( newViewport.pageNumber < 0 )
newViewport.pageNumber = 0;
newViewport.rePos.enabled = true;
newViewport.rePos.normalizedY = 1.0;
d->document->setViewport( newViewport );
}
break;
case Qt::Key_Down:
case Qt::Key_PageDown:
case Qt::Key_Space:
// if in single page mode and at the bottom of the screen, go to next page
if ( Okular::Settings::viewContinuous() || verticalScrollBar()->value() < verticalScrollBar()->maximum() )
{
if ( e->key() == Qt::Key_Down )
verticalScrollBar()->triggerAction( QScrollBar::SliderSingleStepAdd );
else
verticalScrollBar()->triggerAction( QScrollBar::SliderPageStepAdd );
}
else if ( (int)d->document->currentPage() < d->items.count() - 1 )
{
// more optimized than document->setNextPage and then move view to top
Okular::DocumentViewport newViewport = d->document->viewport();
newViewport.pageNumber += d->document->currentPage() ? viewColumns() : 1;
if ( newViewport.pageNumber >= (int)d->items.count() )
newViewport.pageNumber = d->items.count() - 1;
newViewport.rePos.enabled = true;
newViewport.rePos.normalizedY = 0.0;
d->document->setViewport( newViewport );
}
break;
case Qt::Key_Left:
horizontalScrollBar()->triggerAction( QScrollBar::SliderSingleStepSub );
break;
case Qt::Key_Right:
horizontalScrollBar()->triggerAction( QScrollBar::SliderSingleStepAdd );
break;
case Qt::Key_Shift:
case Qt::Key_Control:
if ( d->autoScrollTimer )
{
if ( d->autoScrollTimer->isActive() )
d->autoScrollTimer->stop();
else
slotAutoScoll();
return;
}
// else fall trhough
default:
e->ignore();
return;
}
// if a known key has been pressed, stop scrolling the page
if ( d->autoScrollTimer )
{
d->scrollIncrement = 0;
d->autoScrollTimer->stop();
}
}
}
void PageView::inputMethodEvent( QInputMethodEvent * e )
{
if( d->typeAheadActive )
{
if( !e->commitString().isEmpty() )
{
d->typeAheadString += e->commitString();
doTypeAheadSearch();
e->accept();
}
}
}
void PageView::contentsMouseMoveEvent( QMouseEvent * e )
{
if (d->document->handleEvent( e ) )
{
// don't perform any mouse action when no document is shown
if ( d->items.isEmpty() )
return;
// don't perform any mouse action when viewport is autoscrolling
if ( d->viewportMoveActive )
return;
// if holding mouse mid button, perform zoom
if ( d->mouseMidZooming && (e->buttons() & Qt::MidButton) )
{
int mouseY = e->globalPos().y();
int deltaY = d->mouseMidLastY - mouseY;
// wrap mouse from top to bottom
QRect mouseContainer = KGlobalSettings::desktopGeometry( this );
if ( mouseY <= mouseContainer.top() + 4 &&
d->zoomFactor < 3.99 )
{
mouseY = mouseContainer.bottom() - 5;
QCursor::setPos( e->globalPos().x(), mouseY );
}
// wrap mouse from bottom to top
else if ( mouseY >= mouseContainer.bottom() - 4 &&
d->zoomFactor > 0.11 )
{
mouseY = mouseContainer.top() + 5;
QCursor::setPos( e->globalPos().x(), mouseY );
}
// remember last position
d->mouseMidLastY = mouseY;
// update zoom level, perform zoom and redraw
if ( deltaY )
{
d->zoomFactor *= ( 1.0 + ( (double)deltaY / 500.0 ) );
updateZoom( ZoomRefreshCurrent );
viewport()->repaint();
}
return;
}
// if we're editing an annotation, dispatch event to it
if ( d->annotator && d->annotator->routeEvents() )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
d->annotator->routeEvent( e, pageItem );
return;
}
bool leftButton = (e->buttons() == Qt::LeftButton);
bool rightButton = (e->buttons() == Qt::RightButton);
switch ( d->mouseMode )
{
case MouseNormal:
if ( leftButton )
{
// drag page
if ( !d->mouseGrabPos.isNull() )
{
QPoint mousePos = e->globalPos();
QPoint delta = d->mouseGrabPos - mousePos;
// wrap mouse from top to bottom
QRect mouseContainer = KGlobalSettings::desktopGeometry( this );
if ( mousePos.y() <= mouseContainer.top() + 4 &&
verticalScrollBar()->value() < verticalScrollBar()->maximum() - 10 )
{
mousePos.setY( mouseContainer.bottom() - 5 );
QCursor::setPos( mousePos );
}
// wrap mouse from bottom to top
else if ( mousePos.y() >= mouseContainer.bottom() - 4 &&
verticalScrollBar()->value() > 10 )
{
mousePos.setY( mouseContainer.top() + 5 );
QCursor::setPos( mousePos );
}
// remember last position
d->mouseGrabPos = mousePos;
// scroll page by position increment
horizontalScrollBar()->setValue(horizontalScrollBar()->value() + delta.x());
verticalScrollBar()->setValue(verticalScrollBar()->value() + delta.y());
}
}
else if ( rightButton && !d->mousePressPos.isNull() )
{
// if mouse moves 5 px away from the press point, switch to 'selection'
int deltaX = d->mousePressPos.x() - e->globalPos().x(),
deltaY = d->mousePressPos.y() - e->globalPos().y();
if ( deltaX > 5 || deltaX < -5 || deltaY > 5 || deltaY < -5 )
{
d->aPrevAction = d->aMouseNormal;
d->aMouseSelect->trigger();
QPoint newPos(e->x() + deltaX, e->y() + deltaY);
selectionStart( newPos, palette().color( QPalette::Active, QPalette::Highlight ).light( 120 ), false );
selectionEndPoint( e->pos() );
break;
}
}
else
{
// only hovering the page, so update the cursor
updateCursor( widget()->mapFromGlobal( QCursor::pos() ) );
}
break;
case MouseZoom:
case MouseSelect:
// set second corner of selection
if ( d->mouseSelecting )
selectionEndPoint( e->pos() );
break;
case MouseTextSelect:
// if mouse moves 5 px away from the press point and the document soupports text extraction, do 'textselection'
if ( !d->mouseTextSelecting && !d->mousePressPos.isNull() && d->document->supportsSearching() && ( ( e->pos() - d->mouseSelectPos ).manhattanLength() > 5 ) )
{
d->mouseTextSelecting = true;
}
if ( d->mouseTextSelecting )
{
int first = -1;
QList< Okular::RegularAreaRect * > selections = textSelections( e->pos(), d->mouseSelectPos, first );
QSet< int > pagesWithSelectionSet;
for ( int i = 0; i < selections.count(); ++i )
pagesWithSelectionSet.insert( i + first );
QSet< int > noMoreSelectedPages = d->pagesWithTextSelection - pagesWithSelectionSet;
// clear the selection from pages not selected anymore
foreach( int p, noMoreSelectedPages )
{
d->document->setPageTextSelection( p, 0, QColor() );
}
// set the new selection for the selected pages
foreach( int p, pagesWithSelectionSet )
{
d->document->setPageTextSelection( p, selections[ p - first ], palette().color( QPalette::Active, QPalette::Highlight ) );
}
d->pagesWithTextSelection = pagesWithSelectionSet;
}
break;
}
}
}
void PageView::contentsMousePressEvent( QMouseEvent * e )
{
if ( d->document->handleEvent( e ) )
{
// don't perform any mouse action when no document is shown
if ( d->items.isEmpty() )
return;
// if performing a selection or dyn zooming, disable mouse press
if ( d->mouseSelecting || d->mouseMidZooming || d->viewportMoveActive )
return;
// if the page is scrolling, stop it
if ( d->autoScrollTimer )
{
d->scrollIncrement = 0;
d->autoScrollTimer->stop();
}
// if pressing mid mouse button while not doing other things, begin 'continuous zoom' mode
if ( e->button() == Qt::MidButton )
{
d->mouseMidZooming = true;
d->mouseMidLastY = e->globalPos().y();
setCursor( Qt::SizeVerCursor );
return;
}
// if we're editing an annotation, dispatch event to it
if ( d->annotator && d->annotator->routeEvents() )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
d->annotator->routeEvent( e, pageItem );
return;
}
// update press / 'start drag' mouse position
d->mousePressPos = e->globalPos();
// handle mode dependant mouse press actions
bool leftButton = e->button() == Qt::LeftButton,
rightButton = e->button() == Qt::RightButton;
// Not sure we should erase the selection when clicking with left.
if ( d->mouseMode != MouseTextSelect )
textSelectionClear();
switch ( d->mouseMode )
{
case MouseNormal: // drag start / click / link following
if ( leftButton )
{
d->mouseGrabPos = d->mouseOnRect ? QPoint() : d->mousePressPos;
if ( !d->mouseOnRect )
setCursor( Qt::SizeAllCursor );
}
else if ( rightButton )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
if ( pageItem )
{
// find out normalized mouse coords inside current item
const QRect & itemRect = pageItem->geometry();
double nX = (double)(e->x() - itemRect.left()) / itemRect.width();
double nY = (double)(e->y() - itemRect.top()) / itemRect.height();
Okular::Annotation * ann = 0;
const Okular::ObjectRect * orect = pageItem->page()->getObjectRect( Okular::ObjectRect::OAnnotation, nX, nY, itemRect.width(), itemRect.height() );
if ( orect )
ann = ( (Okular::AnnotationObjectRect *)orect )->annotation();
if ( ann )
{
KMenu menu( this );
QAction *popoutWindow = 0;
QAction *deleteNote = 0;
QAction *showProperties = 0;
menu.addTitle( i18n( "Annotation" ) );
popoutWindow = menu.addAction( KIcon( "comment" ), i18n( "&Open Pop-up Note" ) );
deleteNote = menu.addAction( KIcon( "remove" ), i18n( "&Delete" ) );
if ( ann->flags & Okular::Annotation::DenyDelete )
deleteNote->setEnabled( false );
showProperties = menu.addAction( KIcon( "configure" ), i18n( "&Properties..." ) );
QAction *choice = menu.exec( e->globalPos() );
// check if the user really selected an action
if ( choice )
{
if ( choice == popoutWindow )
{
//ann->window.flags ^= Annotation::Hidden;
setAnnotsWindow( ann );
}
else if( choice == deleteNote )
{
// find and close the annotwindow
QList<AnnotWindow *>::Iterator it = d->m_annowindows.begin();
QList<AnnotWindow *>::Iterator itEnd = d->m_annowindows.end();
for ( ; it != itEnd; ++it )
{
if ( ann == (*it)->m_annot )
{
delete *it;
it = d->m_annowindows.erase( it );
break;
}
}
d->document->removePageAnnotation( pageItem->page()->number(), ann );
}
else if( choice == showProperties )
{
AnnotsPropertiesDialog propdialog( this, d->document, pageItem->pageNumber(), ann );
propdialog.exec();
}
}
}
}
}
break;
case MouseZoom: // set first corner of the zoom rect
if ( leftButton )
selectionStart( e->pos(), palette().color( QPalette::Active, QPalette::Highlight ), false );
else if ( rightButton )
updateZoom( ZoomOut );
break;
case MouseSelect: // set first corner of the selection rect
// if ( leftButton )
// {
selectionStart( e->pos(), palette().color( QPalette::Active, QPalette::Highlight ).light( 120 ), false );
// }
break;
case MouseTextSelect:
d->mouseSelectPos = e->pos();
if ( !rightButton )
{
textSelectionClear();
}
break;
}
}
}
void PageView::contentsMouseReleaseEvent( QMouseEvent * e )
{
if (d->document->handleEvent( e ) )
{
// don't perform any mouse action when no document is shown..
if ( d->items.isEmpty() )
{
// ..except for right Clicks (emitted even it viewport is empty)
if ( e->button() == Qt::RightButton )
emit rightClick( 0, e->globalPos() );
return;
}
// don't perform any mouse action when viewport is autoscrolling
if ( d->viewportMoveActive )
return;
// handle mode indepent mid buttom zoom
if ( d->mouseMidZooming && (e->button() == Qt::MidButton) )
{
d->mouseMidZooming = false;
// request pixmaps since it was disabled during drag
slotRequestVisiblePixmaps();
// the cursor may now be over a link.. update it
updateCursor( e->pos() );
return;
}
// if we're editing an annotation, dispatch event to it
if ( d->annotator && d->annotator->routeEvents() )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
d->annotator->routeEvent( e, pageItem );
return;
}
bool leftButton = e->button() == Qt::LeftButton;
bool rightButton = e->button() == Qt::RightButton;
switch ( d->mouseMode )
{
case MouseNormal:{
// return the cursor to its normal state after dragging
if ( cursor().shape() == Qt::SizeAllCursor )
updateCursor( e->pos() );
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
// if the mouse has not moved since the press, that's a -click-
if ( leftButton && pageItem && d->mousePressPos == e->globalPos())
{
double nX = (double)(e->x() - pageItem->geometry().left()) / (double)pageItem->width(),
nY = (double)(e->y() - pageItem->geometry().top()) / (double)pageItem->height();
const Okular::ObjectRect * rect;
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::Link, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
{
// handle click over a link
const Okular::Link * link = static_cast< const Okular::Link * >( rect->pointer() );
d->document->processLink( link );
}
else
{
// a link can move us to another page or even to another document, there's no point in trying to
// process the click on the image once we have processes the click on the link
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::Image, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
{
// handle click over a image
}
/* Enrico and me have decided this is not worth the trouble it generates
else
{
// if not on a rect, the click selects the page
// if ( pageItem->pageNumber() != (int)d->document->currentPage() )
d->document->setViewportPage( pageItem->pageNumber(), PAGEVIEW_ID );
}*/
}
}
else if ( rightButton )
{
if ( pageItem && d->mousePressPos == e->globalPos() )
{
double nX = (double)(e->x() - pageItem->geometry().left()) / (double)pageItem->width(),
nY = (double)(e->y() - pageItem->geometry().top()) / (double)pageItem->height();
const Okular::ObjectRect * rect;
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::Link, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
{
// handle right click over a link
const Okular::Link * link = static_cast< const Okular::Link * >( rect->pointer() );
// creating the menu and its actions
KMenu menu( this );
QAction * actProcessLink = menu.addAction( i18n( "Follow This Link" ) );
QAction * actCopyLinkLocation = 0;
if ( dynamic_cast< const Okular::LinkBrowse * >( link ) )
actCopyLinkLocation = menu.addAction( i18n( "Copy Link Location" ) );
QAction * res = menu.exec( e->globalPos() );
if ( res )
{
if ( res == actProcessLink )
{
d->document->processLink( link );
}
else if ( res == actCopyLinkLocation )
{
const Okular::LinkBrowse * browseLink = static_cast< const Okular::LinkBrowse * >( link );
QClipboard *cb = QApplication::clipboard();
cb->setText( browseLink->url(), QClipboard::Clipboard );
if ( cb->supportsSelection() )
cb->setText( browseLink->url(), QClipboard::Selection );
}
}
}
else
{
// a link can move us to another page or even to another document, there's no point in trying to
// process the click on the image once we have processes the click on the link
rect = pageItem->page()->getObjectRect( Okular::ObjectRect::Image, nX, nY, pageItem->width(), pageItem->height() );
if ( rect )
{
// handle right click over a image
}
else
{
// right click (if not within 5 px of the press point, the mode
// had been already changed to 'Selection' instead of 'Normal')
emit rightClick( pageItem->page(), e->globalPos() );
}
}
}
else
{
// right click (if not within 5 px of the press point, the mode
// had been already changed to 'Selection' instead of 'Normal')
emit rightClick( pageItem ? pageItem->page() : 0, e->globalPos() );
}
}
}break;
case MouseZoom:
// if a selection rect has been defined, zoom into it
if ( leftButton && d->mouseSelecting )
{
QRect selRect = d->mouseSelectionRect.normalized();
if ( selRect.width() <= 8 && selRect.height() <= 8 )
{
selectionClear();
break;
}
// find out new zoom ratio and normalized view center (relative to the contentsRect)
double zoom = qMin( (double)viewport()->width() / (double)selRect.width(), (double)viewport()->height() / (double)selRect.height() );
double nX = (double)(selRect.left() + selRect.right()) / (2.0 * (double)widget()->width());
double nY = (double)(selRect.top() + selRect.bottom()) / (2.0 * (double)viewport()->height());
// zoom up to 400%
if ( d->zoomFactor <= 4.0 || zoom <= 1.0 )
{
d->zoomFactor *= zoom;
viewport()->setUpdatesEnabled( false );
updateZoom( ZoomRefreshCurrent );
viewport()->setUpdatesEnabled( true );
}
// recenter view and update the viewport
center( (int)(nX * widget()->width()), (int)(nY * viewport()->height()) );
widget()->update();
// hide message box and delete overlay window
selectionClear();
}
break;
case MouseSelect:{
// if mouse is released and selection is null this is a rightClick
if ( rightButton && !d->mouseSelecting )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
emit rightClick( pageItem ? pageItem->page() : 0, e->globalPos() );
break;
}
// if a selection is defined, display a popup
if ( (!leftButton && !d->aPrevAction) || (!rightButton && d->aPrevAction) ||
!d->mouseSelecting )
break;
QRect selectionRect = d->mouseSelectionRect.normalized();
if ( selectionRect.width() <= 8 && selectionRect.height() <= 8 )
{
selectionClear();
if ( d->aPrevAction )
{
d->aPrevAction->trigger();
d->aPrevAction = 0;
}
break;
}
// if we support text generation
QString selectedText;
if (d->document->supportsSearching())
{
// grab text in selection by extracting it from all intersected pages
Okular::RegularAreaRect * rects=new Okular::RegularAreaRect;
const Okular::Page * okularPage=0;
QVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
const QRect & itemRect = item->geometry();
if ( selectionRect.intersects( itemRect ) )
{
// request the textpage if there isn't one
okularPage= item->page();
kWarning() << "checking if page " << item->pageNumber() << " has text " << okularPage->hasSearchPage() << endl;
if ( !okularPage->hasSearchPage() )
d->document->requestTextPage( okularPage->number() );
// grab text in the rect that intersects itemRect
QRect relativeRect = selectionRect.intersect( itemRect );
relativeRect.translate( -itemRect.left(), -itemRect.top() );
rects->append(new Okular::NormalizedRect( relativeRect, item->width(), item->height() ));
}
}
if (okularPage)
selectedText = okularPage->getText( rects );
}
// popup that ask to copy:text and copy/save:image
KMenu menu( this );
QAction *textToClipboard = 0, *speakText = 0, *imageToClipboard = 0, *imageToFile = 0;
if ( d->document->supportsSearching() && !selectedText.isEmpty() )
{
menu.addTitle( i18np( "Text (1 character)", "Text (%n characters)", selectedText.length() ) );
textToClipboard = menu.addAction( SmallIconSet("editcopy"), i18n( "Copy to Clipboard" ) );
if ( !d->document->isAllowed( Okular::Document::AllowCopy ) )
{
textToClipboard->setEnabled( false );
textToClipboard->setText( i18n("Copy forbidden by DRM") );
}
if ( Okular::Settings::useKTTSD() )
speakText = menu.addAction( SmallIconSet("kttsd"), i18n( "Speak Text" ) );
}
menu.addTitle( i18n( "Image (%1 by %2 pixels)", selectionRect.width(), selectionRect.height() ) );
imageToClipboard = menu.addAction( QIcon(SmallIcon("image")), i18n( "Copy to Clipboard" ) );
imageToFile = menu.addAction( QIcon(SmallIcon("filesave")), i18n( "Save to File..." ) );
QAction *choice = menu.exec( e->globalPos() );
// check if the user really selected an action
if ( choice )
{
// IMAGE operation chosen
if ( choice == imageToClipboard || choice == imageToFile )
{
// renders page into a pixmap
QPixmap copyPix( selectionRect.width(), selectionRect.height() );
QPainter copyPainter( &copyPix );
copyPainter.translate( -selectionRect.left(), -selectionRect.top() );
drawDocumentOnPainter( selectionRect, &copyPainter );
if ( choice == imageToClipboard )
{
// [2] copy pixmap to clipboard
QClipboard *cb = QApplication::clipboard();
cb->setPixmap( copyPix, QClipboard::Clipboard );
if ( cb->supportsSelection() )
cb->setPixmap( copyPix, QClipboard::Selection );
d->messageWindow->display( i18n( "Image [%1x%2] copied to clipboard.", copyPix.width(), copyPix.height() ) );
}
else if ( choice == imageToFile )
{
// [3] save pixmap to file
QString fileName = KFileDialog::getSaveFileName( KUrl(), "image/png image/jpeg", this );
if ( fileName.isEmpty() )
d->messageWindow->display( i18n( "File not saved." ), PageViewMessage::Warning );
else
{
KMimeType::Ptr mime = KMimeType::findByUrl( fileName );
QString type;
if ( !mime )
type = "PNG";
else
type = mime->name().section( '/', -1 ).toUpper();
copyPix.save( fileName, qPrintable( type ) );
d->messageWindow->display( i18n( "Image [%1x%2] saved to %3 file.", copyPix.width(), copyPix.height(), type ) );
}
}
}
// TEXT operation chosen
else
{
if ( choice == textToClipboard )
{
// [1] copy text to clipboard
QClipboard *cb = QApplication::clipboard();
cb->setText( selectedText, QClipboard::Clipboard );
if ( cb->supportsSelection() )
cb->setText( selectedText, QClipboard::Selection );
}
else if ( choice == speakText )
{
// [2] speech selection using KTTSD
// Albert says is this ever necessary?
// we already attached on Part constructor
// If KTTSD not running, start it.
QDBusReply<bool> reply = QDBusConnection::sessionBus().interface()->isServiceRegistered("org.kde.kttsd");
bool kttsdactive = false;
if ( reply.isValid() )
kttsdactive = reply.value();
if ( !kttsdactive )
{
QString error;
if (KToolInvocation::startServiceByDesktopName("kttsd", QStringList(), &error))
{
d->messageWindow->display( i18n("Starting KTTSD Failed: %1", error) );
}
else
{
kttsdactive = true;
}
}
if ( kttsdactive )
{
// creating the connection to the kspeech interface
QDBusInterface kspeech("org.kde.kttsd", "/KSpeech", "org.kde.KSpeech");
kspeech.call("setApplicationName", "okular");
kspeech.call("say", selectedText, 0);
}
}
}
}
// clear widget selection and invalidate rect
selectionClear();
// restore previous action if came from it using right button
if ( d->aPrevAction )
{
d->aPrevAction->trigger();
d->aPrevAction = 0;
}
}break;
case MouseTextSelect:
setCursor( Qt::ArrowCursor );
if ( d->mouseTextSelecting )
{
d->mouseTextSelecting = false;
// textSelectionClear();
}
else if ( !d->mousePressPos.isNull() )
{
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
const Okular::Page * page = pageItem ? pageItem->page() : 0;
if ( page )
{
}
}
break;
}
// reset mouse press / 'drag start' position
d->mousePressPos = QPoint();
}
}
void PageView::wheelEvent( QWheelEvent *e )
{
if (d->document->handleEvent( e ) )
{
// don't perform any mouse action when viewport is autoscrolling
if ( d->viewportMoveActive )
return;
if ( !d->document->isOpened() )
{
QScrollArea::wheelEvent( e );
return;
}
int delta = e->delta(),
vScroll = verticalScrollBar()->value();
e->accept();
if ( (e->modifiers() & Qt::ControlModifier) == Qt::ControlModifier ) {
if ( e->delta() < 0 )
slotZoomOut();
else
slotZoomIn();
}
else if ( delta <= -120 && !Okular::Settings::viewContinuous() && vScroll == verticalScrollBar()->maximum() )
{
// go to next page
if ( (int)d->document->currentPage() < d->items.count() - 1 )
{
// more optimized than document->setNextPage and then move view to top
Okular::DocumentViewport newViewport = d->document->viewport();
newViewport.pageNumber += d->document->currentPage() ? viewColumns() : 1;
if ( newViewport.pageNumber >= (int)d->items.count() )
newViewport.pageNumber = d->items.count() - 1;
newViewport.rePos.enabled = true;
newViewport.rePos.normalizedY = 0.0;
d->document->setViewport( newViewport );
}
}
else if ( delta >= 120 && !Okular::Settings::viewContinuous() && vScroll == verticalScrollBar()->minimum() )
{
// go to prev page
if ( d->document->currentPage() > 0 )
{
// more optimized than document->setPrevPage and then move view to bottom
Okular::DocumentViewport newViewport = d->document->viewport();
newViewport.pageNumber -= viewColumns();
if ( newViewport.pageNumber < 0 )
newViewport.pageNumber = 0;
newViewport.rePos.enabled = true;
newViewport.rePos.normalizedY = 1.0;
d->document->setViewport( newViewport );
}
}
else
QScrollArea::wheelEvent( e );
QPoint cp = widget()->mapFromGlobal(mapToGlobal(e->pos()));
updateCursor(cp);
}
}
void PageView::dragEnterEvent( QDragEnterEvent * ev )
{
if (d->document->handleEvent( ev ) )
{
ev->accept();
}
}
void PageView::dragMoveEvent( QDragMoveEvent * ev )
{
if ( !d->document->handleEvent( ev ) )
return;
ev->accept();
}
void PageView::dropEvent( QDropEvent * ev )
{
if (d->document->handleEvent( ev ) )
{
if ( KUrl::List::canDecode( ev->mimeData() ) )
emit urlDropped( KUrl::List::fromMimeData( ev->mimeData() ).first() );
}
}
//END widget events
QList< Okular::RegularAreaRect * > PageView::textSelections( const QPoint& start, const QPoint& end, int& firstpage )
{
firstpage = -1;
QList< Okular::RegularAreaRect * > ret;
QSet< int > affectedItemsSet;
QRect selectionRect = QRect( start, end ).normalized();
foreach( PageViewItem * item, d->items )
{
if ( selectionRect.intersects( item->geometry() ) )
affectedItemsSet.insert( item->pageNumber() );
}
kDebug() << ">>>> item selected by mouse: " << affectedItemsSet.count() << endl;
if ( !affectedItemsSet.isEmpty() )
{
// is the mouse drag line the ne-sw diagonal of the selection rect?
bool direction_ne_sw = start == selectionRect.topRight() || start == selectionRect.bottomLeft();
int tmpmin = d->document->pages();
int tmpmax = 0;
foreach( int p, affectedItemsSet )
{
if ( p < tmpmin ) tmpmin = p;
if ( p > tmpmax ) tmpmax = p;
}
PageViewItem * a = pickItemOnPoint( (int)( direction_ne_sw ? selectionRect.right() : selectionRect.left() ), (int)selectionRect.top() );
int min = a && ( a->pageNumber() != tmpmax ) ? a->pageNumber() : tmpmin;
PageViewItem * b = pickItemOnPoint( (int)( direction_ne_sw ? selectionRect.left() : selectionRect.right() ), (int)selectionRect.bottom() );
int max = b && ( b->pageNumber() != tmpmin ) ? b->pageNumber() : tmpmax;
QList< int > affectedItemsIds;
for ( int i = min; i <= max; ++i )
affectedItemsIds.append( i );
kDebug() << ">>>> pages: " << affectedItemsIds << endl;
firstpage = affectedItemsIds.first();
if ( affectedItemsIds.count() == 1 )
{
PageViewItem * item = d->items[ affectedItemsIds.first() ];
selectionRect.translate( -item->geometry().topLeft() );
ret.append( textSelectionForItem( item,
direction_ne_sw ? selectionRect.topRight() : selectionRect.topLeft(),
direction_ne_sw ? selectionRect.bottomLeft() : selectionRect.bottomRight() ) );
}
else if ( affectedItemsIds.count() > 1 )
{
// first item
PageViewItem * first = d->items[ affectedItemsIds.first() ];
QRect geom = first->geometry().intersect( selectionRect ).translated( -first->geometry().topLeft() );
ret.append( textSelectionForItem( first,
selectionRect.bottom() > geom.height() ? ( direction_ne_sw ? geom.topRight() : geom.topLeft() ) : ( direction_ne_sw ? geom.bottomRight() : geom.bottomLeft() ),
QPoint() ) );
// last item
PageViewItem * last = d->items[ affectedItemsIds.last() ];
geom = last->geometry().intersect( selectionRect ).translated( -last->geometry().topLeft() );
// the last item needs to appended at last...
Okular::RegularAreaRect * lastArea = textSelectionForItem( last,
QPoint(),
selectionRect.bottom() > geom.height() ? ( direction_ne_sw ? geom.bottomLeft() : geom.bottomRight() ) : ( direction_ne_sw ? geom.topLeft() : geom.topRight() ) );
affectedItemsIds.removeFirst();
affectedItemsIds.removeLast();
// item between the two above
foreach( int page, affectedItemsIds )
{
ret.append( textSelectionForItem( d->items[ page ] ) );
}
ret.append( lastArea );
}
}
return ret;
}
void PageView::drawDocumentOnPainter( const QRect & contentsRect, QPainter * p )
{
// when checking if an Item is contained in contentsRect, instead of
// growing PageViewItems rects (for keeping outline into account), we
// grow the contentsRect
QRect checkRect = contentsRect;
checkRect.adjust( -3, -3, 1, 1 );
// create a region from which we'll subtract painted rects
QRegion remainingArea( contentsRect );
// iterate over all items painting the ones intersecting contentsRect
QVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
{
// check if a piece of the page intersects the contents rect
if ( !(*iIt)->geometry().intersects( checkRect ) )
continue;
// get item and item's outline geometries
PageViewItem * item = *iIt;
QRect itemGeometry = item->geometry(),
outlineGeometry = itemGeometry;
outlineGeometry.adjust( -1, -1, 3, 3 );
// move the painter to the top-left corner of the page
p->save();
p->translate( itemGeometry.left(), itemGeometry.top() );
// draw the page outline (black border and 2px bottom-right shadow)
if ( !itemGeometry.contains( contentsRect ) )
{
int itemWidth = itemGeometry.width(),
itemHeight = itemGeometry.height();
// draw simple outline
p->setPen( Qt::black );
p->drawRect( -1, -1, itemWidth + 1, itemHeight + 1 );
// draw bottom/right gradient
static int levels = 2;
int r = QColor(Qt::gray).red() / (levels + 2),
g = QColor(Qt::gray).green() / (levels + 2),
b = QColor(Qt::gray).blue() / (levels + 2);
for ( int i = 0; i < levels; i++ )
{
p->setPen( QColor( r * (i+2), g * (i+2), b * (i+2) ) );
p->drawLine( i, i + itemHeight + 1, i + itemWidth + 1, i + itemHeight + 1 );
p->drawLine( i + itemWidth + 1, i, i + itemWidth + 1, i + itemHeight );
p->setPen( Qt::gray );
p->drawLine( -1, i + itemHeight + 1, i - 1, i + itemHeight + 1 );
p->drawLine( i + itemWidth + 1, -1, i + itemWidth + 1, i - 1 );
}
}
// draw the page using the PagePainter with all flags active
if ( contentsRect.intersects( itemGeometry ) )
{
QRect pixmapRect = contentsRect.intersect( itemGeometry );
pixmapRect.translate( -itemGeometry.left(), -itemGeometry.top() );
PagePainter::paintPageOnPainter( p, item->page(), PAGEVIEW_ID, pageflags,
itemGeometry.width(), itemGeometry.height(), pixmapRect );
}
// remove painted area from 'remainingArea' and restore painter
remainingArea -= outlineGeometry.intersect( contentsRect );
p->restore();
}
// fill with background color the unpainted area
QVector<QRect> backRects = remainingArea.rects();
int backRectsNumber = backRects.count();
QColor backColor = /*d->items.isEmpty() ? Qt::lightGray :*/ Qt::gray;
for ( int jr = 0; jr < backRectsNumber; jr++ )
p->fillRect( backRects[ jr ], backColor );
}
void PageView::updateItemSize( PageViewItem * item, int colWidth, int rowHeight )
{
const Okular::Page * okularPage = item->page();
double width = okularPage->width(),
height = okularPage->height(),
zoom = d->zoomFactor;
if ( d->zoomMode == ZoomFixed )
{
width *= zoom;
height *= zoom;
item->setWHZ( (int)width, (int)height, d->zoomFactor );
}
else if ( d->zoomMode == ZoomFitWidth )
{
height = okularPage->ratio() * colWidth;
item->setWHZ( colWidth, (int)height, (double)colWidth / width );
d->zoomFactor = (double)colWidth / width;
}
else if ( d->zoomMode == ZoomFitPage )
{
double scaleW = (double)colWidth / (double)width;
double scaleH = (double)rowHeight / (double)height;
zoom = qMin( scaleW, scaleH );
item->setWHZ( (int)(zoom * width), (int)(zoom * height), zoom );
d->zoomFactor = zoom;
}
#ifndef NDEBUG
else
kDebug() << "calling updateItemSize with unrecognized d->zoomMode!" << endl;
#endif
}
PageViewItem * PageView::pickItemOnPoint( int x, int y )
{
PageViewItem * item = 0;
QLinkedList< PageViewItem * >::iterator iIt = d->visibleItems.begin(), iEnd = d->visibleItems.end();
for ( ; iIt != iEnd; ++iIt )
{
PageViewItem * i = *iIt;
const QRect & r = i->geometry();
if ( x < r.right() && x > r.left() && y < r.bottom() )
{
if ( y > r.top() )
item = i;
break;
}
}
return item;
}
void PageView::textSelectionClear()
{
// something to clear
if ( !d->pagesWithTextSelection.isEmpty() )
{
QSet< int >::ConstIterator it = d->pagesWithTextSelection.constBegin(), itEnd = d->pagesWithTextSelection.constEnd();
for ( ; it != itEnd; ++it )
d->document->setPageTextSelection( *it, 0, QColor() );
d->pagesWithTextSelection.clear();
}
}
void PageView::selectionStart( const QPoint & pos, const QColor & color, bool /*aboveAll*/ )
{
selectionClear();
d->mouseSelecting = true;
d->mouseSelectionRect.setRect( pos.x(), pos.y(), 1, 1 );
d->mouseSelectionColor = color;
// ensures page doesn't scroll
if ( d->autoScrollTimer )
{
d->scrollIncrement = 0;
d->autoScrollTimer->stop();
}
}
void PageView::selectionEndPoint( const QPoint & pos )
{
if ( !d->mouseSelecting )
return;
// update the selection rect
QRect updateRect = d->mouseSelectionRect;
d->mouseSelectionRect.setBottomLeft( pos );
updateRect |= d->mouseSelectionRect;
widget()->update( updateRect.adjusted( -1, -1, 1, 1 ) );
}
Okular::RegularAreaRect * PageView::textSelectionForItem( PageViewItem * item, const QPoint & startPoint, const QPoint & endPoint )
{
const QRect & geometry = item->geometry();
Okular::NormalizedPoint startCursor( 0.0, 0.0 );
if ( !startPoint.isNull() )
{
startCursor = Okular::NormalizedPoint( startPoint.x(), startPoint.y(), (int)geometry.width(), (int)geometry.height() );
}
Okular::NormalizedPoint endCursor( 1.0, 1.0 );
if ( !endPoint.isNull() )
{
endCursor = Okular::NormalizedPoint( endPoint.x(), endPoint.y(), (int)geometry.width(), (int)geometry.height() );
}
Okular::TextSelection mouseTextSelectionInfo( startCursor, endCursor );
const Okular::Page * okularPage = item->page();
if ( !okularPage->hasSearchPage() )
d->document->requestTextPage( okularPage->number() );
Okular::RegularAreaRect * selectionArea = okularPage->getTextArea( &mouseTextSelectionInfo );
kDebug() << "text areas (" << okularPage->number() << "): " << ( selectionArea ? QString::number( selectionArea->count() ) : "(none)" ) << endl;
return selectionArea;
}
void PageView::selectionClear()
{
QRect updatedRect = d->mouseSelectionRect.normalized().adjusted( 0, 0, 1, 1 );
d->mouseSelecting = false;
d->mouseSelectionRect.setCoords( 0, 0, 0, 0 );
widget()->update( updatedRect );
}
void PageView::updateZoom( ZoomMode newZoomMode )
{
if ( newZoomMode == ZoomFixed )
{
if ( d->aZoom->currentItem() == 0 )
newZoomMode = ZoomFitWidth;
else if ( d->aZoom->currentItem() == 1 )
newZoomMode = ZoomFitPage;
}
float newFactor = d->zoomFactor;
KAction * checkedZoomAction = 0;
switch ( newZoomMode )
{
case ZoomFixed:{ //ZoomFixed case
QString z = d->aZoom->currentText();
// kdelibs4 sometimes adds accelerators to actions' text directly :(
z.remove ('&');
z.remove ('%');
newFactor = KGlobal::locale()->readNumber( z ) / 100.0;
}break;
case ZoomIn:
newFactor += (newFactor > 0.99) ? ( newFactor > 1.99 ? 0.5 : 0.2 ) : 0.1;
newZoomMode = ZoomFixed;
break;
case ZoomOut:
newFactor -= (newFactor > 0.99) ? ( newFactor > 1.99 ? 0.5 : 0.2 ) : 0.1;
newZoomMode = ZoomFixed;
break;
case ZoomFitWidth:
checkedZoomAction = d->aZoomFitWidth;
break;
case ZoomFitPage:
checkedZoomAction = d->aZoomFitPage;
break;
case ZoomFitText:
checkedZoomAction = d->aZoomFitText;
break;
case ZoomRefreshCurrent:
newZoomMode = ZoomFixed;
d->zoomFactor = -1;
break;
}
if ( newFactor > 4.0 )
newFactor = 4.0;
if ( newFactor < 0.1 )
newFactor = 0.1;
if ( newZoomMode != d->zoomMode || (newZoomMode == ZoomFixed && newFactor != d->zoomFactor ) )
{
// rebuild layout and update the whole viewport
d->zoomMode = newZoomMode;
d->zoomFactor = newFactor;
// be sure to block updates to document's viewport
bool prevState = d->blockViewport;
d->blockViewport = true;
slotRelayoutPages();
d->blockViewport = prevState;
// request pixmaps
slotRequestVisiblePixmaps();
// update zoom text
updateZoomText();
// update actions checked state
d->aZoomFitWidth->setChecked( checkedZoomAction == d->aZoomFitWidth );
d->aZoomFitPage->setChecked( checkedZoomAction == d->aZoomFitPage );
d->aZoomFitText->setChecked( checkedZoomAction == d->aZoomFitText );
// store zoom settings
Okular::Settings::setZoomMode( newZoomMode );
Okular::Settings::setZoomFactor( newFactor );
Okular::Settings::writeConfig();
}
}
void PageView::updateZoomText()
{
// use current page zoom as zoomFactor if in ZoomFit/* mode
if ( d->zoomMode != ZoomFixed && d->items.count() > 0 )
d->zoomFactor = d->items[ qMax( 0, (int)d->document->currentPage() ) ]->zoomFactor();
float newFactor = d->zoomFactor;
d->aZoom->removeAllActions();
// add items that describe fit actions
QStringList translated;
translated << i18n("Fit Width") << i18n("Fit Page") /*<< i18n("Fit Text")*/;
// add percent items
QString double_oh( "00" );
const float zoomValue[10] = { 0.125, 0.25, 0.333, 0.5, 0.667, 0.75, 1, 1.25, 1.50, 2 };
int idx = 0,
selIdx = 2; // use 3 if "fit text" present
bool inserted = false; //use: "d->zoomMode != ZoomFixed" to hide Fit/* zoom ratio
while ( idx < 10 || !inserted )
{
float value = idx < 10 ? zoomValue[ idx ] : newFactor;
if ( !inserted && newFactor < (value - 0.0001) )
value = newFactor;
else
idx ++;
if ( value > (newFactor - 0.0001) && value < (newFactor + 0.0001) )
inserted = true;
if ( !inserted )
selIdx++;
QString localValue( KGlobal::locale()->formatNumber( value * 100.0, 2 ) );
localValue.remove( KGlobal::locale()->decimalSymbol() + double_oh );
translated << QString( "%1%" ).arg( localValue );
}
d->aZoom->setItems( translated );
// select current item in list
if ( d->zoomMode == ZoomFitWidth )
selIdx = 0;
else if ( d->zoomMode == ZoomFitPage )
selIdx = 1;
else if ( d->zoomMode == ZoomFitText )
selIdx = 2;
d->aZoom->setCurrentItem( selIdx );
}
void PageView::updateCursor( const QPoint &p )
{
// detect the underlaying page (if present)
PageViewItem * pageItem = pickItemOnPoint( p.x(), p.y() );
if ( pageItem )
{
double nX = (double)(p.x() - pageItem->geometry().left()) / (double)pageItem->width(),
nY = (double)(p.y() - pageItem->geometry().top()) / (double)pageItem->height();
// if over a ObjectRect (of type Link) change cursor to hand
if ( d->mouseMode == MouseTextSelect )
setCursor( Qt::IBeamCursor );
else
{
const Okular::ObjectRect * linkobj = pageItem->page()->getObjectRect( Okular::ObjectRect::Link, nX, nY, pageItem->width(), pageItem->height() );
const Okular::ObjectRect * annotobj = pageItem->page()->getObjectRect( Okular::ObjectRect::OAnnotation, nX, nY, pageItem->width(), pageItem->height() );
if ( linkobj && !annotobj )
{
d->mouseOnRect = true;
setCursor( Qt::PointingHandCursor );
}
else
setCursor( Qt::ArrowCursor );
}
}
else
{
// if there's no page over the cursor and we were showing the pointingHandCursor
// go back to the normal one
d->mouseOnRect = false;
setCursor( Qt::ArrowCursor );
}
}
int PageView::viewColumns() const
{
int nr=Okular::Settings::renderMode();
if (nr<2)
return nr+1;
return Okular::Settings::viewColumns();
}
int PageView::viewRows() const
{
if (Okular::Settings::renderMode()<2)
return 1;
return Okular::Settings::viewRows();
}
void PageView::center(int cx, int cy)
{
horizontalScrollBar()->setValue(cx - viewport()->width() / 2);
verticalScrollBar()->setValue(cy - viewport()->height() / 2);
}
void PageView::doTypeAheadSearch()
{
bool found = d->document->searchText( PAGEVIEW_SEARCH_ID, d->typeAheadString, false, false,
Okular::Document::NextMatch, true, qRgb( 128, 255, 128 ), true );
KLocalizedString status = found ? ki18n("Text found: \"%1\".") : ki18n("Text not found: \"%1\".");
d->messageWindow->display( status.subs(d->typeAheadString.toLower()).toString(),
found ? PageViewMessage::Find : PageViewMessage::Warning, 4000 );
d->findTimeoutTimer->start( 3000 );
}
//BEGIN private SLOTS
void PageView::slotRelayoutPages()
// called by: notifySetup, viewportResizeEvent, slotRenderMode, slotContinuousToggled, updateZoom
{
// set an empty container if we have no pages
int pageCount = d->items.count();
if ( pageCount < 1 )
{
setWidgetResizable(true);
return;
}
// if viewport was auto-moving, stop it
if ( d->viewportMoveActive )
{
d->viewportMoveActive = false;
d->viewportMoveTimer->stop();
verticalScrollBar()->setEnabled( true );
horizontalScrollBar()->setEnabled( true );
}
// common iterator used in this method and viewport parameters
QVector< PageViewItem * >::iterator iIt, iEnd = d->items.end();
int viewportWidth = viewport()->width(),
viewportHeight = viewport()->height(),
fullWidth = 0,
fullHeight = 0;
QRect viewportRect( horizontalScrollBar()->value(), verticalScrollBar()->value(), viewportWidth, viewportHeight );
// handle the 'center first page in row' stuff
int nCols = viewColumns();
bool centerFirstPage = Okular::Settings::centerFirstPageInRow() && nCols > 1;
// set all items geometry and resize contents. handle 'continuous' and 'single' modes separately
if ( Okular::Settings::viewContinuous() )
{
// handle the 'centering on first row' stuff
if ( centerFirstPage )
pageCount += nCols - 1;
// Here we find out column's width and row's height to compute a table
// so we can place widgets 'centered in virtual cells'.
int nRows;
// if ( Okular::Settings::renderMode() < 2 )
nRows = (int)ceil( (float)pageCount / (float)nCols );
// nRows=(int)ceil( (float)pageCount / (float) Okular::Settings::viewRows() );
// else
// nRows = Okular::Settings::viewRows();
int * colWidth = new int[ nCols ],
* rowHeight = new int[ nRows ],
cIdx = 0,
rIdx = 0;
for ( int i = 0; i < nCols; i++ )
colWidth[ i ] = viewportWidth / nCols;
for ( int i = 0; i < nRows; i++ )
rowHeight[ i ] = 0;
// handle the 'centering on first row' stuff
if ( centerFirstPage )
pageCount -= nCols - 1;
// 1) find the maximum columns width and rows height for a grid in
// which each page must well-fit inside a cell
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
// update internal page size (leaving a little margin in case of Fit* modes)
updateItemSize( item, colWidth[ cIdx ] - 6, viewportHeight - 12 );
// find row's maximum height and column's max width
if ( item->width() + 6 > colWidth[ cIdx ] )
colWidth[ cIdx ] = item->width() + 6;
if ( item->height() + 12 > rowHeight[ rIdx ] )
rowHeight[ rIdx ] = item->height() + 12;
// handle the 'centering on first row' stuff
if ( centerFirstPage && !item->pageNumber() )
cIdx += nCols - 1;
// update col/row indices
if ( ++cIdx == nCols )
{
cIdx = 0;
rIdx++;
}
}
// 2) compute full size
for ( int i = 0; i < nCols; i++ )
fullWidth += colWidth[ i ];
for ( int i = 0; i < nRows; i++ )
fullHeight += rowHeight[ i ];
// 3) arrange widgets inside cells (and refine fullHeight if needed)
int insertX = 0,
insertY = fullHeight < viewportHeight ? ( viewportHeight - fullHeight ) / 2 : 0;
cIdx = 0;
rIdx = 0;
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
int cWidth = colWidth[ cIdx ],
rHeight = rowHeight[ rIdx ];
if ( centerFirstPage && !rIdx && !cIdx )
{
// handle the 'centering on first row' stuff
item->moveTo( insertX + (fullWidth - item->width()) / 2,
insertY + (rHeight - item->height()) / 2 );
cIdx += nCols - 1;
}
else
{
// center widget inside 'cells'
item->moveTo( insertX + (cWidth - item->width()) / 2,
insertY + (rHeight - item->height()) / 2 );
}
// advance col/row index
insertX += cWidth;
if ( ++cIdx == nCols )
{
cIdx = 0;
rIdx++;
insertX = 0;
insertY += rHeight;
}
#ifdef PAGEVIEW_DEBUG
kWarning() << "updating size for pageno " << item->pageNumber() << " to " << item->geometry() << endl;
#endif
}
delete [] colWidth;
delete [] rowHeight;
}
else // viewContinuous is FALSE
{
PageViewItem * currentItem = d->items[ qMax( 0, (int)d->document->currentPage() ) ];
int nRows=viewRows();
// handle the 'centering on first row' stuff
if ( centerFirstPage && d->document->currentPage() < 1 && Okular::Settings::renderMode() == 1 )
nCols = 1, nRows=1;
// setup varialbles for a M(row) x N(columns) grid
int * colWidth = new int[ nCols ],
cIdx = 0;
int * rowHeight = new int[ nRows ],
rIdx = 0;
for ( int i = 0; i < nCols; i++ )
colWidth[ i ] = viewportWidth / nCols;
for ( int i = 0; i < nRows; i++ )
rowHeight[ i ] = viewportHeight / nRows;
// 1) find out maximum area extension for the pages
bool wasCurrent = false;
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
if ( rIdx >= 0 && rIdx < nRows )
{
if ( item == currentItem )
wasCurrent=true;
if ( wasCurrent && cIdx >= 0 && cIdx < nCols )
{
// update internal page size (leaving a little margin in case of Fit* modes)
updateItemSize( item, colWidth[ cIdx ] - 6, rowHeight[ rIdx ] - 12 );
// find row's maximum height and column's max width
if ( item->width() + 6 > colWidth[ cIdx ] )
colWidth[ cIdx ] = item->width() + 6;
if ( item->height() + 12 > rowHeight[ rIdx ] )
rowHeight[ rIdx ] = item->height() + 12;
cIdx++;
}
if( cIdx>=nCols )
{
rIdx++;
cIdx=0;
}
}
}
// 2) calc full size (fullHeight is alredy ok)
for ( int i = 0; i < nCols; i++ )
fullWidth += colWidth[ i ];
for ( int i = 0; i < nRows; i++ )
fullHeight += rowHeight[ i ];
// 3) hide all widgets except the displayable ones and dispose those
int insertX = 0;
int insertY = 0;
cIdx = 0;
rIdx = 0;
wasCurrent=false;
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
if ( rIdx >= 0 && rIdx < nRows )
{
if ( item == currentItem )
wasCurrent=true;
if ( wasCurrent && cIdx >= 0 && cIdx < nCols )
{
// center widget inside 'cells'
item->moveTo( insertX + (colWidth[ cIdx ] - item->width()) / 2,
insertY + ( rowHeight[ rIdx ] - item->height() ) / 2 );
// advance col index
insertX += colWidth[ cIdx ];
cIdx++;
} else
// pino: I used invalidate() instead of setGeometry() so
// the geometry rect of the item is really invalidated
//item->setGeometry( 0, 0, -1, -1 );
item->invalidate();
if( cIdx>=nCols)
{
insertY += rowHeight[ rIdx ];
rIdx++;
insertX = 0;
cIdx=0;
}
}
else
// pino: I used invalidate() instead of setGeometry() so
// the geometry rect of the item is really invalidated
//item->setGeometry( 0, 0, -1, -1 );
item->invalidate();
}
delete [] colWidth;
delete [] rowHeight;
}
// 3) reset dirty state
d->dirtyLayout = false;
// 4) update scrollview's contents size and recenter view
bool wasUpdatesEnabled = viewport()->updatesEnabled();
if ( fullWidth != widget()->width() || fullHeight != widget()->height() )
{
// disable updates and resize the viewportContents
if ( wasUpdatesEnabled )
viewport()->setUpdatesEnabled( false );
setWidgetResizable(false);
fullWidth = qMax(fullWidth, viewport()->width());
fullHeight = qMax(fullHeight, viewport()->height());
widget()->resize( fullWidth, fullHeight );
// restore previous viewport if defined and updates enabled
if ( wasUpdatesEnabled )
{
const Okular::DocumentViewport & vp = d->document->viewport();
if ( vp.pageNumber >= 0 )
{
int prevX = horizontalScrollBar()->value(),
prevY = verticalScrollBar()->value();
const QRect & geometry = d->items[ vp.pageNumber ]->geometry();
double nX = vp.rePos.enabled ? vp.rePos.normalizedX : 0.5,
nY = vp.rePos.enabled ? vp.rePos.normalizedY : 0.0;
center( geometry.left() + ROUND( nX * (double)geometry.width() ),
geometry.top() + ROUND( nY * (double)geometry.height() ) );
// center() usually moves the viewport, that requests pixmaps too.
// if that doesn't happen we have to request them by hand
if ( prevX == horizontalScrollBar()->value() && prevY == verticalScrollBar()->value() )
slotRequestVisiblePixmaps();
}
// or else go to center page
else
center( fullWidth / 2, 0 );
viewport()->setUpdatesEnabled( true );
}
}
// 5) update the whole viewport if updated enabled
if ( wasUpdatesEnabled )
widget()->update();
}
void PageView::slotRequestVisiblePixmaps()
{
// if requests are blocked (because raised by an unwanted event), exit
if ( d->blockPixmapsRequest || d->viewportMoveActive ||
d->mouseMidZooming )
return;
// precalc view limits for intersecting with page coords inside the lOOp
bool isEvent = !d->blockViewport;
QRect viewportRect( horizontalScrollBar()->value(),
verticalScrollBar()->value(),
viewport()->width(), viewport()->height() );
// some variables used to determine the viewport
int nearPageNumber = -1;
double viewportCenterX = (viewportRect.left() + viewportRect.right()) / 2.0,
viewportCenterY = (viewportRect.top() + viewportRect.bottom()) / 2.0,
focusedX = 0.5,
focusedY = 0.0,
minDistance = -1.0;
// iterate over all items
d->visibleItems.clear();
QLinkedList< Okular::PixmapRequest * > requestedPixmaps;
QVector< Okular::VisiblePageRect * > visibleRects;
QVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
{
PageViewItem * i = *iIt;
#ifdef PAGEVIEW_DEBUG
kWarning() << "checking page " << i->pageNumber() << endl;
kWarning() << "viewportRect is " << viewportRect << ", page item is " << i->geometry() << " intersect : " << viewportRect.intersects( i->geometry() ) << endl;
#endif
// if the item doesn't intersect the viewport, skip it
QRect intersectionRect = viewportRect.intersect( i->geometry() );
if ( intersectionRect.isEmpty() )
continue;
// add the item to the 'visible list'
d->visibleItems.push_back( i );
Okular::VisiblePageRect * vItem = new Okular::VisiblePageRect( i->pageNumber(), Okular::NormalizedRect( intersectionRect.translated( -i->geometry().topLeft() ), i->geometry().width(), i->geometry().height() ) );
visibleRects.push_back( vItem );
#ifdef PAGEVIEW_DEBUG
kWarning() << "checking for pixmap for page " << i->pageNumber() << " = " << i->page()->hasPixmap( PAGEVIEW_ID, i->width(), i->height() ) << "\n";
#endif
kWarning() << "checking for text for page " << i->pageNumber() << " = " << i->page()->hasSearchPage() << "\n";
// if the item has not the right pixmap, add a request for it
if ( !i->page()->hasPixmap( PAGEVIEW_ID, i->width(), i->height() ) )
{
#ifdef PAGEVIEW_DEBUG
kWarning() << "rerequesting visible pixmaps for page " << i->pageNumber() << " !\n";
#endif
Okular::PixmapRequest * p = new Okular::PixmapRequest(
PAGEVIEW_ID, i->pageNumber(), i->width(), i->height(), PAGEVIEW_PRIO, true );
requestedPixmaps.push_back( p );
}
// look for the item closest to viewport center and the relative
// position between the item and the viewport center
if ( isEvent )
{
const QRect & geometry = i->geometry();
// compute distance between item center and viewport center (slightly moved left)
double distance = hypot( (geometry.left() + geometry.right()) / 2 - (viewportCenterX - 4),
(geometry.top() + geometry.bottom()) / 2 - viewportCenterY );
if ( distance >= minDistance && nearPageNumber != -1 )
continue;
nearPageNumber = i->pageNumber();
minDistance = distance;
if ( geometry.height() > 0 && geometry.width() > 0 )
{
focusedX = ( viewportCenterX - (double)geometry.left() ) / (double)geometry.width();
focusedY = ( viewportCenterY - (double)geometry.top() ) / (double)geometry.height();
}
}
}
// if preloading is enabled, add the pages before and after in preloading
if ( !d->visibleItems.isEmpty() &&
Okular::Settings::memoryLevel() != Okular::Settings::EnumMemoryLevel::Low &&
Okular::Settings::enableThreading() )
{
// add the page before the 'visible series' in preload
int headRequest = d->visibleItems.first()->pageNumber() - 1;
if ( headRequest >= 0 )
{
PageViewItem * i = d->items[ headRequest ];
// request the pixmap if not already present
if ( !i->page()->hasPixmap( PAGEVIEW_ID, i->width(), i->height() ) && i->width() > 0 )
requestedPixmaps.push_back( new Okular::PixmapRequest(
PAGEVIEW_ID, i->pageNumber(), i->width(), i->height(), PAGEVIEW_PRELOAD_PRIO, true ) );
}
// add the page after the 'visible series' in preload
int tailRequest = d->visibleItems.last()->pageNumber() + 1;
if ( tailRequest < (int)d->items.count() )
{
PageViewItem * i = d->items[ tailRequest ];
// request the pixmap if not already present
if ( !i->page()->hasPixmap( PAGEVIEW_ID, i->width(), i->height() ) && i->width() > 0 )
requestedPixmaps.push_back( new Okular::PixmapRequest(
PAGEVIEW_ID, i->pageNumber(), i->width(), i->height(), PAGEVIEW_PRELOAD_PRIO, true ) );
}
}
// send requests to the document
if ( !requestedPixmaps.isEmpty() )
{
d->document->requestPixmaps( requestedPixmaps );
}
// if this functions was invoked by viewport events, send update to document
if ( isEvent && nearPageNumber != -1 )
{
// determine the document viewport
Okular::DocumentViewport newViewport( nearPageNumber );
newViewport.rePos.enabled = true;
newViewport.rePos.normalizedX = focusedX;
newViewport.rePos.normalizedY = focusedY;
// set the viewport to other observers
d->document->setViewport( newViewport , PAGEVIEW_ID);
}
d->document->setVisiblePageRects( visibleRects, PAGEVIEW_ID );
}
void PageView::slotMoveViewport()
{
// converge to viewportMoveDest in 1 second
int diffTime = d->viewportMoveTime.elapsed();
if ( diffTime >= 667 || !d->viewportMoveActive )
{
center( d->viewportMoveDest.x(), d->viewportMoveDest.y() );
d->viewportMoveTimer->stop();
d->viewportMoveActive = false;
slotRequestVisiblePixmaps();
verticalScrollBar()->setEnabled( true );
horizontalScrollBar()->setEnabled( true );
return;
}
// move the viewport smoothly (kmplot: p(x)=1+0.47*(x-1)^3-0.25*(x-1)^4)
float convergeSpeed = (float)diffTime / 667.0,
x = ((float)viewport()->width() / 2.0) + horizontalScrollBar()->value(),
y = ((float)viewport()->height() / 2.0) + verticalScrollBar()->value(),
diffX = (float)d->viewportMoveDest.x() - x,
diffY = (float)d->viewportMoveDest.y() - y;
convergeSpeed *= convergeSpeed * (1.4 - convergeSpeed);
center( (int)(x + diffX * convergeSpeed),
(int)(y + diffY * convergeSpeed ) );
}
void PageView::slotAutoScoll()
{
// the first time create the timer
if ( !d->autoScrollTimer )
{
d->autoScrollTimer = new QTimer( this );
d->autoScrollTimer->setSingleShot( true );
connect( d->autoScrollTimer, SIGNAL( timeout() ), this, SLOT( slotAutoScoll() ) );
}
// if scrollIncrement is zero, stop the timer
if ( !d->scrollIncrement )
{
d->autoScrollTimer->stop();
return;
}
// compute delay between timer ticks and scroll amount per tick
int index = abs( d->scrollIncrement ) - 1; // 0..9
const int scrollDelay[10] = { 200, 100, 50, 30, 20, 30, 25, 20, 30, 20 };
const int scrollOffset[10] = { 1, 1, 1, 1, 1, 2, 2, 2, 4, 4 };
d->autoScrollTimer->start( scrollDelay[ index ] );
int delta = d->scrollIncrement > 0 ? scrollOffset[ index ] : -scrollOffset[ index ];
verticalScrollBar()->setValue(verticalScrollBar()->value() + delta);
}
void PageView::slotStopFindAhead()
{
d->typeAheadActive = false;
d->typeAheadString = "";
d->messageWindow->display( i18n("Find stopped."), PageViewMessage::Find, 1000 );
// (4/4) it is needed to grab the keyboard becase people may have Space assigned
// to a accel and without grabbing the keyboard you can not vim-search for space
// because it activates the accel
releaseKeyboard();
}
void PageView::slotShowWelcome()
{
// show initial welcome text
d->messageWindow->display( i18n( "Welcome" ), PageViewMessage::Info, 2000 );
}
void PageView::slotZoom()
{
setFocus();
updateZoom( ZoomFixed );
}
void PageView::slotZoomIn()
{
updateZoom( ZoomIn );
}
void PageView::slotZoomOut()
{
updateZoom( ZoomOut );
}
void PageView::slotFitToWidthToggled( bool on )
{
if ( on ) updateZoom( ZoomFitWidth );
}
void PageView::slotFitToPageToggled( bool on )
{
if ( on ) updateZoom( ZoomFitPage );
}
void PageView::slotFitToTextToggled( bool on )
{
if ( on ) updateZoom( ZoomFitText );
}
void PageView::slotRenderMode( int nr )
{
uint newColumns;
if (nr<2)
newColumns = nr+1;
else
newColumns = Okular::Settings::viewColumns();
if ( Okular::Settings::renderMode() != nr )
{
Okular::Settings::setRenderMode( nr );
Okular::Settings::writeConfig();
if ( d->document->pages() > 0 )
slotRelayoutPages();
}
}
void PageView::slotContinuousToggled( bool on )
{
if ( Okular::Settings::viewContinuous() != on )
{
Okular::Settings::setViewContinuous( on );
Okular::Settings::writeConfig();
if ( d->document->pages() > 0 )
slotRelayoutPages();
}
}
void PageView::slotSetMouseNormal()
{
d->mouseMode = MouseNormal;
// hide the messageWindow
d->messageWindow->hide();
// reshow the annotator toolbar if hiding was forced
if ( d->aToggleAnnotator->isChecked() )
slotToggleAnnotator( true );
}
void PageView::slotSetMouseZoom()
{
d->mouseMode = MouseZoom;
// change the text in messageWindow (and show it if hidden)
d->messageWindow->display( i18n( "Select zooming area. Right-click to zoom out." ), PageViewMessage::Info, -1 );
// force hiding of annotator toolbar
if ( d->annotator )
d->annotator->setEnabled( false );
}
void PageView::slotSetMouseSelect()
{
d->mouseMode = MouseSelect;
// change the text in messageWindow (and show it if hidden)
d->messageWindow->display( i18n( "Draw a rectangle around the text/graphics to copy." ), PageViewMessage::Info, -1 );
// force hiding of annotator toolbar
if ( d->annotator )
d->annotator->setEnabled( false );
}
void PageView::slotSetMouseTextSelect()
{
d->mouseMode = MouseTextSelect;
// change the text in messageWindow (and show it if hidden)
d->messageWindow->display( i18n( "Select text." ), PageViewMessage::Info, -1 );
// force hiding of annotator toolbar
if ( d->annotator )
d->annotator->setEnabled( false );
}
void PageView::slotToggleAnnotator( bool on )
{
// only use annotator in normal mouse mode
if ( on && d->mouseMode != MouseNormal )
return;
// create the annotator object if not present
if ( !d->annotator )
d->annotator = new PageViewAnnotator( this, d->document );
// initialize/reset annotator (and show/hide toolbar)
d->annotator->setEnabled( on );
}
void PageView::slotScrollUp()
{
if ( d->scrollIncrement < -9 )
return;
d->scrollIncrement--;
slotAutoScoll();
setFocus();
}
void PageView::slotScrollDown()
{
if ( d->scrollIncrement > 9 )
return;
d->scrollIncrement++;
slotAutoScoll();
setFocus();
}
//END private SLOTS
#include "pageview.moc"
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