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Diffstat (limited to 'kpdf/ui/pageview.h')
| -rw-r--r-- | kpdf/ui/pageview.h | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/kpdf/ui/pageview.h b/kpdf/ui/pageview.h new file mode 100644 index 00000000..f6e40991 --- /dev/null +++ b/kpdf/ui/pageview.h @@ -0,0 +1,148 @@ +/*************************************************************************** + * 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/kpdf_pagewidget.h 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 Kurt Pfeifle <kpfeifle@danka.de> * + * * + * 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 |