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/***************************************************************************
* Copyright (C) 2004 by Enrico Ros <[email protected]> *
* Copyright (C) 2004 by Albert Astals Cid <[email protected]> *
* *
* With portions of code from kpdf/kpdf_pagewidget.h by: *
* Copyright (C) 2002 by Wilco Greven <[email protected]> *
* Copyright (C) 2003 by Christophe Devriese *
* <[email protected]> *
* Copyright (C) 2003 by Laurent Montel <[email protected]> *
* Copyright (C) 2003 by Kurt Pfeifle <[email protected]> *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
***************************************************************************/
// This file follows coding style described in kdebase/kicker/HACKING
#ifndef _KPDF_PAGEVIEW_H_
#define _KPDF_PAGEVIEW_H_
#include <qscrollview.h>
#include <qvaluevector.h>
#include "core/observer.h"
class KURL;
class KActionCollection;
class KPDFDocument;
class PageViewItem;
class PageViewPrivate;
class PageViewTip;
/**
* @short The main view. Handles zoom and continuous mode.. oh, and page
* @short display of course :-)
* ...
*/
class PageView : public QScrollView, public DocumentObserver
{
Q_OBJECT
friend class PageViewTip;
public:
PageView( QWidget *parent, KPDFDocument *document );
~PageView();
// Zoom mode ( last 4 are internally used only! )
enum ZoomMode { ZoomFixed, ZoomFitWidth, ZoomFitPage, ZoomFitText,
ZoomIn, ZoomOut, ZoomRefreshCurrent };
enum MouseMode { MouseNormal, MouseZoom, MouseSelect, MouseEdit };
// create actions that interact with this widget
void setupActions( KActionCollection * collection );
// used from RMB menu
bool canFitPageWidth();
void fitPageWidth( int page );
// inherited from DocumentObserver
uint observerId() const { return PAGEVIEW_ID; }
void notifySetup( const QValueVector< KPDFPage * > & pages, bool documentChanged );
void notifyViewportChanged( bool smoothMove );
void notifyPageChanged( int pageNumber, int changedFlags );
void notifyContentsCleared( int changedFlags );
bool canUnloadPixmap( int pageNum );
void showText( const QString &text, int ms );
signals:
void urlDropped( const KURL& );
void rightClick( const KPDFPage *, const QPoint & );
protected:
// main draw loop, draws pageViews on viewport
void viewportPaintEvent( QPaintEvent * pe );
void viewportResizeEvent( QResizeEvent* );
// mouse / keyboard events
void keyPressEvent( QKeyEvent* );
void imEndEvent( QIMEvent * );
void contentsMouseMoveEvent( QMouseEvent* );
void contentsMousePressEvent( QMouseEvent* );
void contentsMouseReleaseEvent( QMouseEvent* );
void wheelEvent( QWheelEvent* );
// drag and drop related events
void dragEnterEvent( QDragEnterEvent* );
void dropEvent( QDropEvent* );
private:
// draw items on the opened qpainter
void paintItems( QPainter * p, const QRect & clipRect );
// update item width and height using current zoom parameters
void updateItemSize( PageViewItem * item, int columnWidth, int rowHeight );
// return the widget placed on a certain point or 0 if clicking on empty space
PageViewItem * pickItemOnPoint( int x, int y );
// start / modify / clear selection rectangle
void selectionStart( int x, int y, const QColor & color, bool aboveAll = false );
void selectionEndPoint( int x, int y );
void selectionClear();
// update internal zoom values and end in a slotRelayoutPages();
void updateZoom( ZoomMode newZm );
// update the text on the label using global zoom value or current page's one
void updateZoomText();
// updates cursor
void updateCursor( const QPoint &p );
// does the type ahead search
void doTypeAheadSearch();
// don't want to expose classes in here
class PageViewPrivate * d;
private slots:
// activated either directly or via QTimer on the viewportResizeEvent
void slotRelayoutPages();
// activated either directly or via the contentsMoving(int,int) signal
void slotRequestVisiblePixmaps( int left = -1, int top = -1 );
// activated by the viewport move timer
void slotMoveViewport();
// activated by the autoscroll timer (Shift+Up/Down keys)
void slotAutoScoll();
// activated by the dragScroll timer
void slotDragScroll();
// type-ahead find timeout
void findAheadStop();
// show the welcome message
void slotShowWelcome();
// connected to local actions (toolbar, menu, ..)
void slotZoom();
void slotZoomIn();
void slotZoomOut();
void slotFitToWidthToggled( bool );
void slotFitToPageToggled( bool );
void slotFitToTextToggled( bool );
void slotTwoPagesToggled( bool );
void slotContinuousToggled( bool );
void slotSetMouseNormal();
void slotSetMouseZoom();
void slotSetMouseSelect();
void slotSetMouseDraw();
void slotScrollUp();
void slotScrollDown();
};
#endif
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