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// vim: set tabstop=4 shiftwidth=4 noexpandtab
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/*
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Gwenview - A simple image viewer for KDE
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Copyright 2000-2004 Aur<75>ien G<>eau
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef IMAGEVIEWTOOLS_H
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#define IMAGEVIEWTOOLS_H
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// Qt
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#include <qcursor.h>
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// Local
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#include "imageview.h"
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namespace Gwenview {
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class ImageView::ToolBase {
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protected:
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ImageView* mView;
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public:
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ToolBase(ImageView* view);
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virtual ~ToolBase();
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virtual void mouseMoveEvent(QMouseEvent*);
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virtual void leftButtonPressEvent(QMouseEvent*);
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virtual void leftButtonReleaseEvent(QMouseEvent*);
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virtual void midButtonReleaseEvent(QMouseEvent*);
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virtual void rightButtonPressEvent(QMouseEvent* event);
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virtual void rightButtonReleaseEvent(QMouseEvent*);
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virtual void wheelEvent(QWheelEvent* event);
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virtual void updateCursor();
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/**
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* Return a hint about the use of the tool
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*/
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virtual QString hint() const=0;
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};
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class ImageView::ZoomTool : public ImageView::ToolBase {
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private:
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QCursor mZoomCursor;
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void zoomTo(const QPoint& pos, bool in);
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public:
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ZoomTool(ImageView* view);
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void leftButtonReleaseEvent(QMouseEvent* event);
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void wheelEvent(QWheelEvent* event);
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void rightButtonPressEvent(QMouseEvent*);
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void rightButtonReleaseEvent(QMouseEvent* event);
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void updateCursor();
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virtual QString hint() const;
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};
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class ImageView::ScrollTool : public ImageView::ToolBase {
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int mScrollStartX,mScrollStartY;
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bool mDragStarted;
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public:
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ScrollTool(ImageView* view);
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void leftButtonPressEvent(QMouseEvent* event);
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void mouseMoveEvent(QMouseEvent* event);
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void leftButtonReleaseEvent(QMouseEvent*);
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void wheelEvent(QWheelEvent* event);
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void updateCursor();
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virtual QString hint() const;
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};
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} // namespace
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#endif /* IMAGEVIEWTOOLS_H */
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