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/*
Gwenview - A simple image viewer for TDE
Copyright 2000-2004 Aur�ien G�eau
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 program 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 this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef IMAGEVIEWTOOLS_H
#define IMAGEVIEWTOOLS_H
// TQt
#include <tqcursor.h>
// Local
#include "imageview.h"
namespace Gwenview {
class ImageView::ToolBase {
protected:
ImageView* mView;
public:
ToolBase(ImageView* view);
virtual ~ToolBase();
virtual void mouseMoveEvent(TQMouseEvent*);
virtual void leftButtonPressEvent(TQMouseEvent*);
virtual void leftButtonReleaseEvent(TQMouseEvent*);
virtual void midButtonReleaseEvent(TQMouseEvent*);
virtual void rightButtonPressEvent(TQMouseEvent* event);
virtual void rightButtonReleaseEvent(TQMouseEvent*);
virtual void wheelEvent(TQWheelEvent* event);
virtual void updateCursor();
/**
* Return a hint about the use of the tool
*/
virtual TQString hint() const=0;
};
class ImageView::ZoomTool : public ImageView::ToolBase {
private:
TQCursor mZoomCursor;
void zoomTo(const TQPoint& pos, bool in);
public:
ZoomTool(ImageView* view);
void leftButtonReleaseEvent(TQMouseEvent* event);
void wheelEvent(TQWheelEvent* event);
void rightButtonPressEvent(TQMouseEvent*);
void rightButtonReleaseEvent(TQMouseEvent* event);
void updateCursor();
virtual TQString hint() const;
};
class ImageView::ScrollTool : public ImageView::ToolBase {
int mScrollStartX,mScrollStartY;
bool mDragStarted;
public:
ScrollTool(ImageView* view);
void leftButtonPressEvent(TQMouseEvent* event);
void mouseMoveEvent(TQMouseEvent* event);
void leftButtonReleaseEvent(TQMouseEvent*);
void wheelEvent(TQWheelEvent* event);
void updateCursor();
virtual TQString hint() const;
};
} // namespace
#endif /* IMAGEVIEWTOOLS_H */
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