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photoViewWidget.h

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00001 //==============================================
00002 //  copyright            : (C) 2003 by Will Stokes
00003 //==============================================
00004 //  This program is free software; you can redistribute it 
00005 //  and/or modify it under the terms of the GNU General 
00006 //  Public License as published by the Free Software 
00007 //  Foundation; either version 2 of the License, or  
00008 //  (at your option) any later version.         
00009 //
00010 //  As a special exception, Will Stokes gives permission to 
00011 //  link this program with Qt non-commercial edition, and 
00012 //  distribute the resulting executable, without including the 
00013 //  source code for the Qt non-commercial edition in the 
00014 //  source distribution. 
00015 //==============================================
00016 
00017 #ifndef GUI_PHOTOVIEWWIDGET_H
00018 #define GUI_PHOTOVIEWWIDGET_H
00019 
00020 //--------------------
00021 //forward declarations
00022 class QPixmap;
00023 class QPoint;
00024 class Photo;
00025 //--------------------
00026 
00027 #include <qwidget.h>
00028 
00029 //=====================================
00032 //=====================================
00033 class PhotoViewWidget : public QWidget
00034 {
00035 Q_OBJECT
00036 
00037 public:
00039   PhotoViewWidget(QWidget *parent=0, 
00040                             const char* name=0);
00041                  
00043   ~PhotoViewWidget();
00044   
00046   void setPhoto(Photo* photo);
00047   
00050   void getSelection(QPoint &topLeft, QPoint &bottomRight);
00051   //----------------------
00052 protected:
00053   void paintEvent( QPaintEvent *e);
00054   void mousePressEvent( QMouseEvent *e);
00055   void mouseReleaseEvent( QMouseEvent *);
00056   void mouseMoveEvent( QMouseEvent *e);
00057   void keyReleaseEvent( QKeyEvent *e);
00058   //----------------------
00059 private slots:
00060  void selectAll();
00061   //----------------------
00062 private:
00064   QPoint cropSelectedPoint(QPoint p);
00065   
00067   QPixmap* photo;
00068   
00070   Photo* photoObject;
00071 
00073   QPoint* corner1;
00074   
00076   QPoint* corner2;
00077   
00079   bool currentlyDragging;  
00080 //----------------------
00081 };
00082 //======================
00083 
00084 #endif //GUI_PHOTOVIEWWIDGET_H

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