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okular/kpdf/pageview.cpp
Enrico Ros 6a175f7669 Merged Selection tools: a popup asks wether to save/copy text or gfx. 
Added 'continous zooming' using mid mouse button. Clipped selections to
viewport. Fixed a bad rounded float-to-int conversion (gives more pixel
precision in zooming).
CCMAIL: burellil@dei.unipd.it

svn path=/branches/kpdf_experiments/kdegraphics/kpdf/; revision=363468
2004-11-16 17:36:02 +00:00

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/***************************************************************************
* Copyright (C) 2004 by Enrico Ros <eros.kde@email.it> *
* Copyright (C) 2004 by Albert Astals Cid <tsdgeos@terra.es> *
* *
* With portions of code from 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. *
***************************************************************************/
#include <qpainter.h>
#include <qtimer.h>
#include <qpushbutton.h>
#include <qapplication.h>
#include <qclipboard.h>
#include <kiconloader.h>
#include <kurldrag.h>
#include <kaction.h>
#include <kactioncollection.h>
#include <kpopupmenu.h>
#include <klocale.h>
#include <kfiledialog.h>
#include <kimageeffect.h>
#include <kimageio.h>
#include <kdebug.h>
#include <math.h>
#include <stdlib.h>
#include "pageview.h"
#include "pageviewutils.h"
#include "page.h"
#include "settings.h"
// structure used internally by PageView for data storage
class PageViewPrivate
{
public:
// the document, current page and pages indices vector
KPDFDocument * document;
PageViewItem * activeItem; //equal to items[vectorIndex]
QValueVector< PageViewItem * > items;
int vectorIndex;
// view layout (columns and continous in Settings), zoom and mouse
PageView::ZoomMode zoomMode;
float zoomFactor;
PageView::MouseMode mouseMode;
QPoint mouseGrabPos;
QPoint mouseStartPos;
int mouseMidStartY;
bool mouseOnLink;
bool mouseOnActiveRect;
QRect mouseSelectionRect;
// other stuff
QTimer * delayTimer;
QTimer * scrollTimer;
int scrollIncrement;
bool dirtyLayout;
PageViewMessage * messageWindow; //in pageviewutils.h
// actions
KToggleAction * aMouseEdit;
KSelectAction * aZoom;
KToggleAction * aZoomFitWidth;
KToggleAction * aZoomFitPage;
KToggleAction * aZoomFitText;
KToggleAction * aViewTwoPages;
KToggleAction * aViewContinous;
};
/* 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)
* 200 - events: mouse, keyboard, drag/drop
* 170 - slotRelayoutPages: set contents of the scrollview on continous/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, KPDFDocument *document )
: QScrollView( parent, "KPDF::pageView", WStaticContents | WNoAutoErase )
{
// create and initialize private storage structure
d = new PageViewPrivate();
d->document = document;
d->activeItem = 0;
d->vectorIndex = -1;
d->zoomMode = ZoomFixed;
d->zoomFactor = 1.0;
d->mouseMode = MouseNormal;
d->mouseMidStartY = -1;
d->mouseOnLink = false;
d->mouseOnActiveRect = false;
d->delayTimer = 0;
d->scrollTimer = 0;
d->scrollIncrement = 0;
d->dirtyLayout = false;
d->messageWindow = new PageViewMessage(this);
// widget setup: setup focus, accept drops and track mouse
viewport()->setFocusProxy( this );
viewport()->setFocusPolicy( StrongFocus );
//viewport()->setPaletteBackgroundColor( Qt::white );
viewport()->setBackgroundMode( Qt::NoBackground );
setResizePolicy( Manual );
setAcceptDrops( true );
setDragAutoScroll( false );
viewport()->setMouseTracking( true );
// conntect the padding of the viewport to pixmaps requests
connect( this, SIGNAL(contentsMoving(int, int)), this, SLOT(slotRequestVisiblePixmaps(int, int)) );
// 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(...);
}
PageView::~PageView()
{
delete d;
}
void PageView::setupActions( KActionCollection * ac )
{
// Zoom actions ( higher scales takes lots of memory! )
d->aZoom = new KSelectAction( i18n( "Zoom" ), "viewmag", 0, this, SLOT( slotZoom() ), ac, "zoom_to" );
d->aZoom->setEditable( true );
updateZoomText();
KStdAction::zoomIn( this, SLOT( slotZoomIn() ), ac, "zoom_in" );
KStdAction::zoomOut( this, SLOT( slotZoomOut() ), ac, "zoom_out" );
d->aZoomFitWidth = new KToggleAction( i18n("Fit to Page &Width"), "viewmagfit", 0, ac, "zoom_fit_width" );
connect( d->aZoomFitWidth, SIGNAL( toggled( bool ) ), SLOT( slotFitToWidthToggled( bool ) ) );
d->aZoomFitPage = new KToggleAction( i18n("Fit to &Page"), "viewmagfit", 0, ac, "zoom_fit_page" );
connect( d->aZoomFitPage, SIGNAL( toggled( bool ) ), SLOT( slotFitToPageToggled( bool ) ) );
d->aZoomFitText = new KToggleAction( i18n("Fit to &Text"), "viewmagfit", 0, ac, "zoom_fit_text" );
connect( d->aZoomFitText, SIGNAL( toggled( bool ) ), SLOT( slotFitToTextToggled( bool ) ) );
// View-Layout actions
d->aViewTwoPages = new KToggleAction( i18n("Two Pages"), "view_left_right", 0, ac, "view_twopages" );
connect( d->aViewTwoPages, SIGNAL( toggled( bool ) ), SLOT( slotTwoPagesToggled( bool ) ) );
d->aViewTwoPages->setChecked( Settings::viewColumns() > 1 );
d->aViewContinous = new KToggleAction( i18n("Continous"), "view_text", 0, ac, "view_continous" );
connect( d->aViewContinous, SIGNAL( toggled( bool ) ), SLOT( slotContinousToggled( bool ) ) );
d->aViewContinous->setChecked( Settings::viewContinous() );
// Mouse-Mode actions
KToggleAction * mn = new KRadioAction( i18n("Normal"), "mouse", 0, this, SLOT( slotSetMouseNormal() ), ac, "mouse_drag" );
mn->setExclusiveGroup( "MouseType" );
mn->setChecked( true );
KToggleAction * mz = new KRadioAction( i18n("Zoom Tool"), "viewmag", 0, this, SLOT( slotSetMouseZoom() ), ac, "mouse_zoom" );
mz->setExclusiveGroup( "MouseType" );
KToggleAction * mst = new KRadioAction( i18n("Select"), "frame_edit", 0, this, SLOT( slotSetMouseSelect() ), ac, "mouse_select" );
mst->setExclusiveGroup( "MouseType" );
d->aMouseEdit = new KRadioAction( i18n("Draw"), "edit", 0, this, SLOT( slotSetMouseDraw() ), ac, "mouse_draw" );
d->aMouseEdit->setExclusiveGroup("MouseType");
d->aMouseEdit->setEnabled( false ); // implement feature before removing this line
// Other actions
KAction * su = new KAction( i18n("Scroll Up"), 0, this, SLOT( slotScrollUp() ), ac, "view_scroll_up" );
su->setShortcut( "Shift+Up" );
KAction * sd = new KAction( i18n("Scroll Down"), 0, this, SLOT( slotScrollDown() ), ac, "view_scroll_down" );
sd->setShortcut( "Shift+Down" );
}
//BEGIN KPDFDocumentObserver inherited methods
void PageView::notifyPixmapChanged( int pageNumber )
{
QValueVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
if ( (*iIt)->pageNumber() == pageNumber )
{
// update item's rectangle plus the little outline
QRect expandedRect = (*iIt)->geometry();
expandedRect.addCoords( -1, -1, 3, 3 );
updateContents( expandedRect );
break;
}
}
void PageView::notifyPixmapsCleared()
{
slotRequestVisiblePixmaps();
}
void PageView::pageSetup( const QValueVector<KPDFPage*> & 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)
QValueVector< PageViewItem * >::iterator dIt = d->items.begin(), dEnd = d->items.end();
for ( ; dIt != dEnd; ++dIt )
delete *dIt;
d->items.clear();
d->activeItem = 0;
// create children widgets
QValueVector< KPDFPage * >::const_iterator setIt = pageSet.begin(), setEnd = pageSet.end();
for ( ; setIt != setEnd; ++setIt )
d->items.push_back( new PageViewItem( *setIt ) );
// invalidate layout
d->dirtyLayout = true;
// OSD to display pages
if ( documentChanged && !Settings::hideOSD() )
d->messageWindow->display(
i18n(" Loaded a %1 pages document." ).arg( pageSet.count() ),
PageViewMessage::Info, 4000 );
}
void PageView::pageSetCurrent( int pageNumber, const QRect & viewport )
{
// select next page
d->vectorIndex = 0;
d->activeItem = 0;
QValueVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
{
if ( (*iIt)->pageNumber() == pageNumber )
{
d->activeItem = *iIt;
break;
}
d->vectorIndex ++;
}
if ( !d->activeItem )
return;
// relayout in "Single Pages" mode or if a relayout is pending
if ( !Settings::viewContinous() || d->dirtyLayout )
slotRelayoutPages();
// center the view to see the selected page
if ( viewport.isNull() || true ) // FIXME take care of viewport
{
const QRect & r = d->activeItem->geometry();
center( r.left() + r.width() / 2, r.top() + visibleHeight() / 2 - 10 );
}
slotRequestVisiblePixmaps();
// update zoom text if in a ZoomFit/* zoom mode
if ( d->zoomMode != ZoomFixed )
updateZoomText();
}
//END KPDFDocumentObserver inherited methods
//BEGIN widget events
void PageView::viewportPaintEvent( QPaintEvent * pe )
{
// create the rect into contents from the clipped screen rect
QRect viewportRect = viewport()->rect();
QRect contentsRect = pe->rect().intersect( viewportRect );
contentsRect.moveBy( contentsX(), contentsY() );
if ( !contentsRect.isValid() )
return;
// create the screen painter. a pixel painted ar contentsX,contentsY
// appears to the top-left corner of the scrollview.
QPainter screenPainter( viewport(), true );
screenPainter.translate( -contentsX(), -contentsY() );
// selectionRect is the normalized mouse selection rect
QRect selectionRect = d->mouseSelectionRect;
if ( !selectionRect.isNull() )
selectionRect = selectionRect.normalize();
// selectionRectInternal without the border
QRect selectionRectInternal = selectionRect;
selectionRectInternal.addCoords( 1, 1, -1, -1 );
// color for blending
QColor selBlendColor = (selectionRect.width() > 20 || selectionRect.height() > 20) ?
palette().active().highlight() : Qt::red;
// subdivide region into rects
QMemArray<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 < (0.7 * 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].normalize().intersect( viewportRect );
contentsRect.moveBy( contentsX(), contentsY() );
if ( !contentsRect.isValid() )
continue;
}
// note: this check will take care of all things requiring alpha blending (not only selection)
bool wantCompositing = !selectionRect.isNull() && contentsRect.intersects( selectionRect );
if ( wantCompositing && !Settings::disableCompositing() )
{
// 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
paintItems( &pixmapPainter, contentsRect );
// 2) Layer 1: pixmap manipulated areas
// 3) Layer 2: 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() )
{
// grab current pixmap into a new one to colorize contents
QPixmap blendedPixmap( blendRect.width(), blendRect.height() );
copyBlt( &blendedPixmap, 0,0, &doubleBuffer,
blendRect.left() - contentsRect.left(), blendRect.top() - contentsRect.top(),
blendRect.width(), blendRect.height() );
// blend selBlendColor into the background pixmap
QImage blendedImage = blendedPixmap.convertToImage();
KImageEffect::blend( selBlendColor.dark(140), blendedImage, 0.2 );
// copy the blended pixmap back to its place
pixmapPainter.drawPixmap( blendRect.left(), blendRect.top(), blendedImage );
}
// draw border (red if the selection is too small)
pixmapPainter.setPen( selBlendColor );
pixmapPainter.drawRect( selectionRect );
}
// 4) Layer 3: overlays
if ( Settings::tempDrawBoundaries() )
{
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
paintItems( &screenPainter, contentsRect );
// 2) Layer 1: opaque manipulated ares (filled / contours)
// 3) Layer 2: paint opaque selection
if ( !selectionRect.isNull() && selectionRect.intersects( contentsRect ) &&
!selectionRectInternal.contains( contentsRect ) )
{
screenPainter.setPen( palette().active().highlight().dark(110) );
screenPainter.drawRect( selectionRect );
}
// 4) Layer 3: overlays
if ( Settings::tempDrawBoundaries() )
{
screenPainter.setPen( Qt::red );
screenPainter.drawRect( contentsRect );
}
}
}
}
void PageView::viewportResizeEvent( QResizeEvent * )
{
// start a timer that will refresh the pixmap after 0.5s
if ( !d->delayTimer )
{
d->delayTimer = new QTimer( this );
connect( d->delayTimer, SIGNAL( timeout() ), this, SLOT( slotRelayoutPages() ) );
}
d->delayTimer->start( 400, true );
}
void PageView::keyPressEvent( QKeyEvent * e )
{
e->accept();
// move/scroll page by using keys
switch ( e->key() )
{
case Key_Up:
case Key_PageUp:
// if in single page mode and at the top of the screen, go to previous page
if ( Settings::viewContinous() || verticalScrollBar()->value() > verticalScrollBar()->minValue() )
{
if ( e->key() == Key_Up )
verticalScrollBar()->subtractLine();
else
verticalScrollBar()->subtractPage();
}
else if ( d->vectorIndex > 0 )
d->document->setCurrentPage( d->items[ d->vectorIndex - 1 ]->pageNumber() );
break;
case Key_Down:
case Key_PageDown:
// if in single page mode and at the bottom of the screen, go to next page
if ( Settings::viewContinous() || verticalScrollBar()->value() < verticalScrollBar()->maxValue() )
{
if ( e->key() == Key_Down )
verticalScrollBar()->addLine();
else
verticalScrollBar()->addPage();
}
else if ( d->vectorIndex < (int)d->items.count() - 1 )
d->document->setCurrentPage( d->items[ d->vectorIndex + 1 ]->pageNumber() );
break;
case Key_Left:
horizontalScrollBar()->subtractLine();
break;
case Key_Right:
horizontalScrollBar()->addLine();
break;
case Key_Shift:
case Key_Control:
if ( d->scrollTimer )
{
if ( d->scrollTimer->isActive() )
d->scrollTimer->stop();
else
slotAutoScoll();
return;
}
default:
e->ignore();
return;
}
// if a known key has been pressed, stop scrolling the page
if ( d->scrollTimer )
{
d->scrollIncrement = 0;
d->scrollTimer->stop();
}
}
void PageView::contentsMouseMoveEvent( QMouseEvent * e )
{
// if holding mouse mid button, perform zoom
if ( (e->state() & MidButton) && d->mouseMidStartY > 0 )
{
int deltaY = d->mouseMidStartY - e->globalPos().y();
d->mouseMidStartY = e->globalPos().y();
d->zoomFactor *= ( 1.0 + ( (double)deltaY / 500.0 ) );
updateZoom( ZoomRefreshCurrent );
// uncomment following line to force a complete redraw
//viewport()->repaint();
return;
}
bool leftButton = e->state() & LeftButton;
switch ( d->mouseMode )
{
case MouseNormal:
if ( leftButton )
{
// drag page
if ( !d->mouseGrabPos.isNull() )
{
// scroll page by position increment
QPoint delta = d->mouseGrabPos - e->globalPos();
scrollBy( delta.x(), delta.y() );
d->mouseGrabPos = e->globalPos();
// if the page was scrolling, stop it
if ( d->scrollTimer )
{
d->scrollIncrement = 0;
d->scrollTimer->stop();
}
}
}
else // only hovering the page
{
// detect the underlaying page (if present)
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
if ( pageItem )
{
int pageX = e->x() - pageItem->geometry().left(),
pageY = e->y() - pageItem->geometry().top();
// check if over a KPDFActiveRect
bool onActiveRect = pageItem->page()->hasActiveRect( pageX, pageY );
if ( onActiveRect != d->mouseOnActiveRect )
{
d->mouseOnActiveRect = onActiveRect;
setCursor( onActiveRect ? pointingHandCursor : arrowCursor );
}
// check if over a KPDFLink
bool onLink = pageItem->page()->hasLink( pageX, pageY );
if ( onLink != d->mouseOnLink )
{
d->mouseOnLink = onLink;
setCursor( onLink ? pointingHandCursor : arrowCursor );
}
}
}
break;
case MouseZoom:
case MouseSelect:
// set second corner of selection in selection pageItem
if ( leftButton && !d->mouseSelectionRect.isNull() )
selectionEndPoint( e->x(), e->y() );
break;
case MouseEdit: // ? update graphics ?
break;
}
}
void PageView::contentsMousePressEvent( QMouseEvent * e )
{
// if pressing mid mouse button while not doing other things, begin 'comtinous zoom' mode
if ( (e->button() & MidButton) && d->mouseSelectionRect.isNull() )
{
d->mouseMidStartY = e->globalPos().y();
setCursor( sizeVerCursor );
return;
}
// handle mode dependant mouse press actions
bool leftButton = e->button() & LeftButton;
switch ( d->mouseMode )
{
case MouseNormal: // drag start / click / link following
if ( leftButton )
{
d->mouseStartPos = e->globalPos();
d->mouseGrabPos = d->mouseOnLink ? QPoint() : d->mouseStartPos;
if ( !d->mouseOnLink )
setCursor( sizeAllCursor );
}
else if ( e->button() & RightButton )
emit rightClick();
break;
case MouseZoom:
case MouseSelect: // set first corner of the selection rect
if ( leftButton )
selectionStart( e->x(), e->y(), false );
break;
case MouseEdit: // ? place the beginning of [tool] ?
break;
}
}
void PageView::contentsMouseReleaseEvent( QMouseEvent * e )
{
// handle mode indepent mid buttom zoom
if ( (e->state() & MidButton) && d->mouseMidStartY > 0 )
{
d->mouseMidStartY = -1;
setCursor( arrowCursor );
return;
}
bool leftButton = e->button() & LeftButton,
rightButton = e->button() & RightButton;
switch ( d->mouseMode )
{
case MouseNormal:{ // do Follow Link or Display RMB
setCursor( arrowCursor );
PageViewItem * pageItem = pickItemOnPoint( e->x(), e->y() );
if ( leftButton && pageItem )
{
if ( d->mouseOnLink )
{
// activate link
int linkX = e->x() - pageItem->geometry().left(),
linkY = e->y() - pageItem->geometry().top();
d->document->processLink( pageItem->page()->getLink( linkX, linkY ) );
}
else
{
// mouse not moved since press, so we have a click. select the page.
if ( e->globalPos() == d->mouseStartPos )
d->document->setCurrentPage( pageItem->pageNumber() );
}
}
else if ( rightButton && pageItem )
{
// if over a page display a popup menu
const KPDFPage * kpdfPage = pageItem->page();
KPopupMenu * m_popup = new KPopupMenu( this, "rmb popup" );
m_popup->insertTitle( i18n( "Page %1" ).arg( kpdfPage->number() + 1 ) );
if ( kpdfPage->attributes() & KPDFPage::Bookmark )
m_popup->insertItem( SmallIcon("bookmark"), i18n("Remove Bookmark"), 1 );
else
m_popup->insertItem( SmallIcon("bookmark_add"), i18n("Add Bookmark"), 1 );
m_popup->insertItem( SmallIcon("viewmagfit"), i18n("Fit Page"), 2 );
m_popup->insertItem( SmallIcon("pencil"), i18n("Edit"), 3 );
m_popup->setItemEnabled( 3, false );
if ( d->mouseOnActiveRect )
{
m_popup->insertItem( SmallIcon("filesave"), i18n("Save Image ..."), 4 );
m_popup->setItemEnabled( 4, false );
}
switch ( m_popup->exec(e->globalPos()) )
{
case 1:
d->document->toggleBookmark( kpdfPage->number() );
break;
case 2:
// zoom: Fit Width, columns: 1. setActions + relayout + setPage + update
d->zoomMode = ZoomFitWidth;
Settings::setViewColumns( 1 );
d->aZoomFitWidth->setChecked( true );
d->aZoomFitPage->setChecked( false );
d->aZoomFitText->setChecked( false );
d->aViewTwoPages->setChecked( false );
viewport()->setUpdatesEnabled( false );
slotRelayoutPages();
viewport()->setUpdatesEnabled( true );
updateContents();
d->document->setCurrentPage( kpdfPage->number() );
break;
case 3: // ToDO switch to edit mode
slotSetMouseDraw();
break;
}
delete m_popup;
}
// reset start position
d->mouseStartPos = QPoint();
}break;
case MouseZoom: // do ZOOM
if ( leftButton && !d->mouseSelectionRect.isNull() )
{
QRect selRect = d->mouseSelectionRect.normalize();
if ( selRect.width() < 4 || selRect.height() < 4 )
break;
// find out new zoom ratio and normalized view center (relative to the contentsRect)
double zoom = QMIN( (double)visibleWidth() / (double)selRect.width(), (double)visibleHeight() / (double)selRect.height() );
double nX = (double)(selRect.left() + selRect.right()) / (2.0 * (double)contentsWidth());
double nY = (double)(selRect.top() + selRect.bottom()) / (2.0 * (double)contentsHeight());
// 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 * contentsWidth()), (int)(nY * contentsHeight()) );
updateContents();
// hide message box and delete overlay window
selectionClear();
return;
}
// if in ZoomRect mode, right click zooms out
else if ( rightButton )
{
updateZoom( ZoomOut );
return;
}
break;
case MouseSelect:{ // do SELECT
if ( !leftButton || d->mouseSelectionRect.isNull() )
break;
QRect selectionRect = d->mouseSelectionRect.normalize();
if ( selectionRect.width() < 5 || selectionRect.height() < 5 )
break;
// grab text in selection by extracting it from all intersected pages
QString selectedText;
QValueVector< 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
const KPDFPage * kpdfPage = item->page();
if ( !kpdfPage->hasSearchPage() )
d->document->requestTextPage( kpdfPage->number() );
// grab text
QRect relativeRect = selectionRect.intersect( itemRect );
relativeRect.moveBy( -itemRect.left(), -itemRect.top() );
selectedText += kpdfPage->getTextInRect( relativeRect, item->zoomFactor() );
}
}
// popup that ask to copy:text and copy/save:image
KPopupMenu menu( this );
if ( !selectedText.isEmpty() )
{
menu.insertTitle( i18n( "Text ( %1 characters )" ).arg( selectedText.length() ) );
menu.insertItem( SmallIcon("editcopy"), i18n( "Copy to Clipboard" ), 1 );
}
menu.insertTitle( i18n( "Image ( %1 by %2 pixels )" ).arg( selectionRect.width() ).arg( selectionRect.height() ) );
menu.insertItem( SmallIcon("image"), i18n( "Copy to Clipboard" ), 2 );
menu.insertItem( SmallIcon("filesave"), i18n( "Save to File ..." ), 3 );
int choice = menu.exec( e->globalPos() );
// IMAGE operation choosen
if ( choice > 1 )
{
// renders page into a pixmap
QPixmap copyPix( selectionRect.width(), selectionRect.height() );
QPainter copyPainter( &copyPix );
copyPainter.translate( -selectionRect.left(), -selectionRect.top() );
paintItems( &copyPainter, selectionRect );
if ( choice == 2 )
{
// [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." ).arg( copyPix.width() ).arg( copyPix.height() ) );
}
else
{
// [3] save pixmap to file
QString fileName = KFileDialog::getSaveFileName( QString::null, "image/png image/jpeg", this );
if ( fileName.isNull() )
d->messageWindow->display( i18n( "File not saved." ), PageViewMessage::Warning );
else
{
QString type( KImageIO::type( fileName ) );
if ( type.isNull() )
type = "PNG";
copyPix.save( fileName, type.latin1() );
d->messageWindow->display( i18n( "Image [%1x%2] saved to %3 file." ).arg( copyPix.width() ).arg( copyPix.height() ).arg( type ) );
}
}
}
// TEXT operation choosen
else if ( choice == 1 )
{
QClipboard *cb = QApplication::clipboard();
cb->setText( selectedText, QClipboard::Clipboard );
if ( cb->supportsSelection() )
cb->setText( selectedText, QClipboard::Selection );
}
// clear widget selection and invalidate rect
selectionClear();
}break;
case MouseEdit: // ? apply [tool] ?
break;
}
}
void PageView::wheelEvent( QWheelEvent *e )
{
int delta = e->delta(),
vScroll = verticalScrollBar()->value();
e->accept();
if ( (e->state() & ControlButton) == ControlButton ) {
if ( e->delta() < 0 )
slotZoomOut();
else
slotZoomIn();
}
else if ( delta <= -120 && !Settings::viewContinous() && vScroll == verticalScrollBar()->maxValue() )
{
// go to next page
if ( d->vectorIndex < (int)d->items.count() - 1 )
d->document->setCurrentPage( d->items[ d->vectorIndex + 1 ]->pageNumber() );
}
else if ( delta >= 120 && !Settings::viewContinous() && vScroll == verticalScrollBar()->minValue() )
{
// go to prev page
if ( d->vectorIndex > 0 )
d->document->setCurrentPage( d->items[ d->vectorIndex - 1 ]->pageNumber() );
}
else
QScrollView::wheelEvent( e );
}
void PageView::dragEnterEvent( QDragEnterEvent * ev )
{
ev->accept();
}
void PageView::dropEvent( QDropEvent * ev )
{
KURL::List lst;
if ( KURLDrag::decode( ev, lst ) )
emit urlDropped( lst.first() );
}
//END widget events
void PageView::paintItems( QPainter * p, const QRect & contentsRect )
{
// 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.addCoords( -3, -3, 1, 1 );
// create a region from wich we'll subtract painted rects
QRegion remainingArea( contentsRect );
QValueVector< 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;
PageViewItem * item = *iIt;
QRect pixmapGeometry = item->geometry();
// translate the painter so we draw top-left pixmap corner in 0,0
p->save();
p->translate( pixmapGeometry.left(), pixmapGeometry.top() );
// item pixmap and outline geometry
QRect outlineGeometry = pixmapGeometry;
outlineGeometry.addCoords( -1, -1, 3, 3 );
// draw the page outline (little black border and 2px shadow)
if ( !pixmapGeometry.contains( contentsRect ) )
{
int pixmapWidth = pixmapGeometry.width(),
pixmapHeight = pixmapGeometry.height();
// draw simple outline
p->setPen( Qt::black );
p->drawRect( -1, -1, pixmapWidth + 2, pixmapHeight + 2 );
// draw bottom/right gradient
int levels = 2;
int r = Qt::gray.red() / (levels + 2),
g = Qt::gray.green() / (levels + 2),
b = 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 + pixmapHeight + 1, i + pixmapWidth + 1, i + pixmapHeight + 1 );
p->drawLine( i + pixmapWidth + 1, i, i + pixmapWidth + 1, i + pixmapHeight );
p->setPen( Qt::gray );
p->drawLine( -1, i + pixmapHeight + 1, i - 1, i + pixmapHeight + 1 );
p->drawLine( i + pixmapWidth + 1, -1, i + pixmapWidth + 1, i - 1 );
}
}
// draw the pixmap (note: this modifies the painter (not saved for performance))
if ( contentsRect.intersects( pixmapGeometry ) )
{
QRect pixmapRect = contentsRect.intersect( pixmapGeometry );
pixmapRect.moveBy( -pixmapGeometry.left(), -pixmapGeometry.top() );
int flags = PagePainter::Accessibility | PagePainter::EnhanceLinks |
PagePainter::EnhanceRects | PagePainter::Highlight;
PagePainter::paintPageOnPainter( item->page(), PAGEVIEW_ID, flags, p, pixmapRect,
pixmapGeometry.width(), pixmapGeometry.height() );
}
// remove painted area from 'remainingArea' and restore painter
remainingArea -= outlineGeometry.intersect( contentsRect );
p->restore();
}
// paint with background color the unpainted area
QMemArray<QRect> backRects = remainingArea.rects();
uint backRectsNumber = backRects.count();
for ( uint jr = 0; jr < backRectsNumber; jr++ )
p->fillRect( backRects[ jr ], Qt::gray );
}
void PageView::updateItemSize( PageViewItem * item, int colWidth, int rowHeight )
{
const KPDFPage * kpdfPage = item->page();
double width = kpdfPage->width(),
height = kpdfPage->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 = kpdfPage->ratio() * colWidth;
item->setWHZ( colWidth, (int)height, (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 );
}
#ifndef NDEBUG
else
kdDebug() << "calling updateItemSize with unrecognized d->zoomMode!" << endl;
#endif
}
PageViewItem * PageView::pickItemOnPoint( int x, int y )
{
PageViewItem * item = 0;
QValueVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.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::selectionStart( int x, int y, bool /*aboveAll*/ )
{
d->mouseSelectionRect.setRect( x, y, 1, 1 );
// ensures page doesn't scroll
if ( d->scrollTimer )
{
d->scrollIncrement = 0;
d->scrollTimer->stop();
}
}
void PageView::selectionEndPoint( int x, int y )
{
// clip selection to the viewport
QRect viewportRect( contentsX(), contentsY(), visibleWidth(), visibleHeight() );
x = QMAX( QMIN( x, viewportRect.right() ), viewportRect.left() ),
y = QMAX( QMIN( y, viewportRect.bottom() ), viewportRect.top() );
// if selection changed update rect
if ( d->mouseSelectionRect.right() != x || d->mouseSelectionRect.bottom() != y )
{
// send incremental paint events
QRect oldRect = d->mouseSelectionRect.normalize();
d->mouseSelectionRect.setRight( x );
d->mouseSelectionRect.setBottom( y );
QRect newRect = d->mouseSelectionRect.normalize();
// generate diff region: [ OLD.unite(NEW) - OLD.intersect(NEW) ]
QRegion compoundRegion = QRegion( oldRect ).unite( newRect );
if ( oldRect.intersects( newRect ) )
{
QRect intersection = oldRect.intersect( newRect );
intersection.addCoords( 1, 1, -1, -1 );
if ( intersection.width() > 20 && intersection.height() > 20 )
compoundRegion -= intersection;
}
// tassellate region with rects and enqueue paint events
QMemArray<QRect> rects = compoundRegion.rects();
for ( uint i = 0; i < rects.count(); i++ )
updateContents( rects[i] );
}
}
void PageView::selectionClear()
{
updateContents( d->mouseSelectionRect.normalize() );
d->mouseSelectionRect.setCoords( 0, 0, -1, -1 );
}
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();
newFactor = KGlobal::locale()->readNumber( z.remove( z.find( '%' ), 1 ) ) / 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;
slotRelayoutPages();
// 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 );
}
}
void PageView::updateZoomText()
{
// use current page zoom as zoomFactor if in ZoomFit/* mode
if ( d->zoomMode != ZoomFixed && d->items.count() > 0 )
d->zoomFactor = d->activeItem ? d->activeItem->zoomFactor() : d->items[0]->zoomFactor();
float newFactor = d->zoomFactor;
d->aZoom->clear();
// 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 );
}
//BEGIN private SLOTS
void PageView::slotRelayoutPages()
// called by: pageSetup, viewportResizeEvent, slotTwoPagesToggled, slotContinousToggled, updateZoom
{
// set an empty container if we have no pages
int pageCount = d->items.count();
if ( pageCount < 1 )
{
resizeContents( 0, 0 );
return;
}
// common iterator used in this method and viewport parameters
QValueVector< PageViewItem * >::iterator iIt, iEnd = d->items.end();
int viewportWidth = visibleWidth(),
viewportHeight = visibleHeight(),
viewportCenterX = contentsX() + viewportWidth / 2,
viewportCenterY = contentsY() + viewportHeight / 2,
fullWidth = 0,
fullHeight = 0;
QRect viewportRect( contentsX(), contentsY(), viewportWidth, viewportHeight );
// look for the item closest to viewport center and the relative position
// between the item and the viewport center (for viewport restoring at end)
PageViewItem * focusedPage = 0;
double focusedX = 0.5,
focusedY = 0.0,
minDistance = -1.0;
// find the page nearest to viewport center
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
const QRect & geometry = (*iIt)->geometry();
if ( geometry.intersects( viewportRect ) )
{
// compute distance between item center and viewport center
double distance = hypot( geometry.left() + geometry.width() / 2 - viewportCenterX,
geometry.top() + geometry.height() / 2 - viewportCenterY );
if ( distance >= minDistance && minDistance != -1.0 )
continue;
focusedPage = *iIt;
minDistance = distance;
if ( geometry.height() > 0 && geometry.width() > 0 )
{
focusedX = (double)( viewportCenterX - geometry.left() ) / (double)geometry.width();
focusedY = (double)( viewportCenterY - geometry.top() ) / (double)geometry.height();
}
}
}
// set all items geometry and resize contents. handle 'continous' and 'single' modes separately
if ( Settings::viewContinous() )
{
// 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 nCols = Settings::viewColumns(),
nRows = (int)ceilf( (float)pageCount / (float)nCols ),
* 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;
// 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 ] - 10, viewportHeight - 10 );
// find row's maximum height and column's max width
if ( item->width() > colWidth[ cIdx ] )
colWidth[ cIdx ] = item->width();
if ( item->height() > rowHeight[ rIdx ] )
rowHeight[ rIdx ] = item->height();
// update col/row indices
if ( ++cIdx == nCols )
{
cIdx = 0;
rIdx++;
}
}
// 2) arrange widgets inside cells
int insertX = 0,
insertY = 10; //TODO take d->zoomFactor into account (2+4*x)
cIdx = 0;
rIdx = 0;
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
int cWidth = colWidth[ cIdx ],
rHeight = rowHeight[ rIdx ];
// 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 + 15; //(int)(5.0 + 15.0 * d->zoomFactor);
}
}
fullHeight = cIdx ? (insertY + rowHeight[ rIdx ] + 10) : insertY;
for ( int i = 0; i < nCols; i++ )
fullWidth += colWidth[ i ];
delete [] colWidth;
delete [] rowHeight;
}
else // viewContinous is FALSE
{
PageViewItem * currentItem = d->activeItem ? d->activeItem : d->items[0];
// setup varialbles for a 1(row) x N(columns) grid
int nCols = Settings::viewColumns(),
* colWidth = new int[ nCols ],
cIdx = 0;
fullHeight = viewportHeight;
for ( int i = 0; i < nCols; i++ )
colWidth[ i ] = viewportWidth / nCols;
// 1) find out maximum area extension for the pages
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
if ( item == currentItem || (cIdx > 0 && cIdx < nCols) )
{
// update internal page size (leaving a little margin in case of Fit* modes)
updateItemSize( item, colWidth[ cIdx ] - 10, viewportHeight - 10 );
// find row's maximum height and column's max width
if ( item->width() > colWidth[ cIdx ] )
colWidth[ cIdx ] = item->width();
if ( item->height() > fullHeight )
fullHeight = item->height();
cIdx++;
}
}
// 2) hide all widgets except the displayable ones and dispose those
int insertX = 0;
cIdx = 0;
for ( iIt = d->items.begin(); iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
if ( item == currentItem || (cIdx > 0 && cIdx < nCols) )
{
// center widget inside 'cells'
item->moveTo( insertX + (colWidth[ cIdx ] - item->width()) / 2,
(fullHeight - item->height()) / 2 );
// advance col index
insertX += colWidth[ cIdx ];
cIdx++;
} else
item->setGeometry( 0, 0, -1, -1 );
}
for ( int i = 0; i < nCols; i++ )
fullWidth += colWidth[ i ];
delete [] colWidth;
}
// 3) reset dirty state
d->dirtyLayout = false;
// 4) update scrollview's contents size and recenter view
if ( fullWidth != contentsWidth() || fullHeight != contentsHeight() )
{
bool prevUpdatesState = viewport()->isUpdatesEnabled();
viewport()->setUpdatesEnabled( false );
resizeContents( fullWidth, fullHeight );
if ( focusedPage )
{
const QRect & geometry = focusedPage->geometry();
center( geometry.left() + (int) round( focusedX * (double)geometry.width() ),
geometry.top() + (int) round( focusedY * (double)geometry.height() ) );
}
else
center( fullWidth / 2, 0 );
viewport()->setUpdatesEnabled( prevUpdatesState );
}
// 5) update the whole viewport
updateContents();
}
void PageView::slotRequestVisiblePixmaps( int newLeft, int newTop )
{
// precalc view limits for intersecting with page coords inside the lOOp
QRect viewportRect( newLeft == -1 ? contentsX() : newLeft,
newTop == -1 ? contentsY() : newTop,
visibleWidth(), visibleHeight() );
// scroll from the top to the last visible thumbnail
QValueVector< PageViewItem * >::iterator iIt = d->items.begin(), iEnd = d->items.end();
for ( ; iIt != iEnd; ++iIt )
{
PageViewItem * item = *iIt;
const QRect & itemRect = item->geometry();
if ( viewportRect.intersects( itemRect ) )
{
d->document->requestPixmap( PAGEVIEW_ID, item->pageNumber(),
itemRect.width(), itemRect.height(), true );
}
}
}
void PageView::slotAutoScoll()
{
// the first time create the timer
if ( !d->scrollTimer )
{
d->scrollTimer = new QTimer( this );
connect( d->scrollTimer, SIGNAL( timeout() ), this, SLOT( slotAutoScoll() ) );
}
// if scrollIncrement is zero, stop the timer
if ( !d->scrollIncrement )
{
d->scrollTimer->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->scrollTimer->changeInterval( scrollDelay[ index ] );
scrollBy( 0, d->scrollIncrement > 0 ? scrollOffset[ index ] : -scrollOffset[ index ] );
}
void PageView::slotZoom()
{
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::slotTwoPagesToggled( bool on )
{
uint newColumns = on ? 2 : 1;
if ( Settings::viewColumns() != newColumns )
{
Settings::setViewColumns( newColumns );
if ( d->document->pages() > 0 )
slotRelayoutPages();
}
}
void PageView::slotContinousToggled( bool on )
{
if ( Settings::viewContinous() != on )
{
Settings::setViewContinous( on );
if ( d->document->pages() > 0 )
slotRelayoutPages();
}
}
void PageView::slotSetMouseNormal()
{
d->mouseMode = MouseNormal;
d->messageWindow->hide();
}
void PageView::slotSetMouseZoom()
{
d->mouseMode = MouseZoom;
d->messageWindow->display( i18n( "Select Zooming Area. Right-Click to zoom out." ), PageViewMessage::Info, -1 );
}
void PageView::slotSetMouseSelect()
{
d->mouseMode = MouseSelect;
d->messageWindow->display( i18n( "Draw a rectangle around the text/gfx to copy." ), PageViewMessage::Info, -1 );
}
void PageView::slotSetMouseDraw()
{
d->mouseMode = MouseEdit;
d->aMouseEdit->setChecked( true );
d->messageWindow->hide();
}
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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