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/* This file is part of the KDE project
Copyright (C) 2001, 2002, 2003 The Karbon Developers
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public License
along with this library; see the file COPYING.LIB. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __VCANVAS_H__
#define __VCANVAS_H__
#include <tqscrollview.h>
#include <koffice_export.h>
class KarbonPart;
class KarbonView;
class KoRect;
class KoPoint;
class VPainter;
// The canvas is a TQScrollView.
class KARBONCOMMON_EXPORT VCanvas : public TQScrollView
{
TQ_OBJECT
public:
VCanvas( TQWidget *parent, KarbonView* view, KarbonPart* part );
virtual ~VCanvas();
void repaintAll( const KoRect & );
void repaintAll( bool drawVObjects = true );
TQPixmap *pixmap() { return m_pixmap; }
/**
* Sets mouse position to point p.
*/
void setPos( const KoPoint& p );
KoPoint toViewport( const KoPoint & ) const;
KoPoint toContents( const KoPoint & ) const;
KoRect boundingBox() const;
/**
* Adjusts the viewport top-left position. This doesn't change the zoom level.
* Note that centerX and centerY is a value between 0.0 and 1.0, indicating a
* percentage of the total width/height. Thus centerX/centerY indicates the
* center of the viewport.
*/
void setViewport( double centerX, double centerY );
/**
* Sets the canvas viewport rectangle to rect. The zoom level is adjusted for this, if
* needed.
*/
void setViewportRect( const KoRect &rect );
int pageOffsetX() const;
int pageOffsetY() const;
KoPoint snapToGrid( const KoPoint & );
protected:
virtual void dragEnterEvent( TQDragEnterEvent * );
virtual void dropEvent( TQDropEvent * );
virtual void focusInEvent( TQFocusEvent * );
virtual void viewportPaintEvent( TQPaintEvent* );
virtual void drawContents( TQPainter* painter, int clipx, int clipy,
int clipw, int cliph );
void drawDocument( TQPainter* painter, const KoRect& rect, bool drawVObjects = true );
virtual void resizeEvent( TQResizeEvent* event );
virtual bool eventFilter( TQObject* object, TQEvent* event );
void setYMirroring( VPainter * );
private slots:
void slotContentsMoving( int , int );
signals:
void viewportChanged();
private:
TQPixmap *m_pixmap;
KarbonPart* m_part;
KarbonView* m_view;
};
#endif
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