qjpixmapview.h

/*
  Copyright(C)2004 Johan Thelin
        johan.thelin -at- digitalfanatics.org
        
        Visit: http://www.digitalfanatics.org/e8johan/projects/jseries/index.html

  This file is part of the JSeries.

  JSeries 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.

  JSeries 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 General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with JSeries; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef QjPIXMAPVIEW_H
#define QjPIXMAPVIEW_H

#include <qscrollview.h>
#include <qpixmap.h>
#include <qpoint.h>

class QPainter;
struct QjPixmapViewPrivate;

class QjPixmapView : public QScrollView
{
        Q_OBJECT
        
public:
        QjPixmapView( QWidget *parent = 0, char *name = 0 );
        QjPixmapView( const QPixmap &pm, QWidget *parent = 0, char *name = 0 );
        QjPixmapView( double zoom, const QPixmap &pm, QWidget *parent = 0, char *name = 0 );
        ~QjPixmapView();

        void clear();
        
        void setPixmap( const QPixmap &pm );
        void setPixmapAndZoom( double zoom, const QPixmap &pm );

public slots:
        void setZoom( double zoom );
        
protected:
        QPoint pmToViewport( const QPoint &p );
        QPoint viewportToPm( const QPoint &p );
        
signals:
        void zoomChanged( double );

protected:
        virtual void drawContents( QPainter *p, int clipx, int clipy, int clipw, int cliph );

private:
        QjPixmapViewPrivate *pd;
};

#endif // QjPIXMAPVIEW_H

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