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/***************************************************************************
* Copyright (C) 2004-2005 by Albert Astals Cid *
* tsdgeos@terra.es *
* *
* 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. *
***************************************************************************/
#ifndef MAPWIDGET_H
#define MAPWIDGET_H
#include <qimage.h>
#include <qpoint.h>
#include <qwidget.h>
class mapWidget : public QWidget
{
Q_OBJECT
public:
mapWidget(QWidget *parent);
void init(const QString &path, int scrollBarWidth, int scrollBarHeight);
void setMapMove(bool b);
void setMapZoom(bool b);
QSize sizeHint() const;
QSize mapSize() const;
public slots:
void updateHPosition(int value);
void updateVPosition(int value);
void setOriginalImage();
signals:
void setMoveActionChecked(bool b);
void setZoomActionChecked(bool b);
void setMoveActionEnabled(bool b);
void clicked(QRgb, const QPoint&);
void updatePosition(int X, int Y);
void updateVisibleSize(int w, int h);
void updateMaximumSize(int w, int h);
protected:
void mousePressEvent(QMouseEvent *e);
void mouseMoveEvent(QMouseEvent *e);
void mouseReleaseEvent(QMouseEvent *e);
void resizeEvent(QResizeEvent *e);
private:
void emitMoveActionEnabled();
QImage *getCurrentImage();
void updateShownImage();
QImage p_originalImage, p_zoomedImageShown;
bool p_zooming, p_wantZoom, p_moving, p_wantMove;
QPoint p_initial, p_prev; // rubberbanding and moving
int p_zoomX, p_zoomY, p_zoomW, p_zoomH;
double p_lastFactorX, p_lastFactorY;
// useful to not do that many updateShownImage
QSize p_oldSize;
int p_oldZoomX, p_oldZoomY, p_oldZoomW, p_oldZoomH;
int p_scrollBarWidth, p_scrollBarHeight;
bool p_scrollBarsVisible;
};
#endif
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