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/***************************************************************************
imagemap.h - description
-------------------
begin : Wed Apr 4 2001
copyright : (C) 2001 by Jan Schäfer
email : janschaefer@users.sourceforge.net
***************************************************************************/
/***************************************************************************
* *
* 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 IMAGEMAP_H
#define IMAGEMAP_H
#include <qscrollview.h>
#include <qimage.h>
#include <qpoint.h>
#include <qrect.h>
#include <qcursor.h>
#include "kdeversion.h"
class KImageMapEditor;
class Area;
/**
*@short Draws the image and areas and handle the draw actions
*@author Jan Schäfer
*@internal
*@see Area
*/
class DrawZone : public QScrollView {
public:
DrawZone(QWidget *parent,KImageMapEditor* _imageMapEditor);
~DrawZone();
QImage picture() const;
void repaintArea(const Area & a);
void repaintRect(const QRect & r);
void cancelDrawing();
void setPicture(const QImage &_image);
void setZoom(double z);
QPoint translateFromZoom(const QPoint & p) const;
QRect translateFromZoom(const QRect & p) const;
QPoint translateToZoom(const QPoint & p) const;
QRect translateToZoom(const QRect & p) const;
QRect getImageRect() const { return image.rect(); }
protected:
virtual void contentsMouseDoubleClickEvent(QMouseEvent*);
virtual void contentsMousePressEvent(QMouseEvent*);
virtual void contentsMouseReleaseEvent(QMouseEvent*);
virtual void contentsMouseMoveEvent(QMouseEvent*);
virtual void resizeEvent(QResizeEvent*);
virtual void drawContents(QPainter*,int,int,int,int);
virtual void viewportDropEvent(QDropEvent*);
virtual void contentsDragEnterEvent(QDragEnterEvent*);
virtual void contentsDropEvent(QDropEvent*);
/**
* Represents whats currently going on
* @li None : Nothing
* @li DrawCircle : The user is drawing a circle
* @li DrawRectangle : The user is drawing a rectangle
* @li MoveSelectionPoint : The user is resizing an @ref Area or moving a polygon point
* @li MoveArea : The user is moving an @ref Area
* @li DoSelect : The user makes a selection rectangle
*/
enum DrawAction { None, DrawCircle, DrawRectangle, DrawPolygon, DrawFreehand, MoveSelectionPoint, MoveArea, DoSelect, RemovePoint, AddPoint };
void createBorderRectangles(const QRect & r,QRect & rb,QRect & lb,QRect & tb,QRect & bb);
private:
DrawAction currentAction;
// The currently drawing area
Area *currentArea;
// Needed when moving selectionpoints
QRect *currentSelectionPoint;
// The point where the user clicked the mouse
QPoint drawStart;
QPoint drawCurrent;
// The original image
QImage image;
KImageMapEditor *imageMapEditor;
// Only the rect of the zoomed image, perhaps redundant
QRect imageRect;
// Only for repaint issues
Area *oldArea;
QRect oldSelectionRect;
// Holds the zoomed image for efficiency reasons
QPixmap zoomedImage;
// The current zoom-factor
double _zoom;
QCursor RectangleCursor;
QCursor CircleCursor;
QCursor PolygonCursor;
QCursor FreehandCursor;
QCursor AddPointCursor;
QCursor RemovePointCursor;
};
inline QImage DrawZone::picture() const {
return image;
}
#endif
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