TonicTones
Src/ImageScrollArea.h
00001 //      ImagScrollArea.h
00002 //      
00003 //      Copyright 2010 Jérémy Laumon <jeremy.laumon@gmail.com>
00004 //      
00005 //      This program is free software; you can redistribute it and/or modify
00006 //      it under the terms of the GNU General Public License as published by
00007 //      the Free Software Foundation; either version 2 of the License, or
00008 //      (at your option) any later version.
00009 //      
00010 //      This program is distributed in the hope that it will be useful,
00011 //      but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 //      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00013 //      GNU General Public License for more details.
00014 //      
00015 //      You should have received a copy of the GNU General Public License
00016 //      along with this program; if not, write to the Free Software
00017 //      Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
00018 //      MA 02110-1301, USA.
00019 
00020 
00021 #ifndef IMAGESCROLLAREA_H
00022 #define IMAGESCROLLAREA_H
00023 
00024 #include <QtGui>
00025 
00026 class ImageScrollArea : public QScrollArea
00027 {
00028     Q_OBJECT
00029     
00030 public:
00031     ImageScrollArea(QWidget *parent=0);
00032     QLabel* image();
00033     void scaleImage(double factor, bool relative=true);
00034 
00035 signals:
00036     void scaleChanged(double scaleFactor);
00037     
00038 protected:
00039     virtual void wheelEvent(QWheelEvent *event);
00040     
00041 private:
00042     void adjustScrollBar(QScrollBar *scrollBar, double factor, bool relative);
00043     
00044     QLabel *imageLabel; 
00045     double scaleFactor; 
00046 };
00047 
00048 #endif
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