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123 lines
3.8 KiB
123 lines
3.8 KiB
/***************************************************************************
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imagemap.h - description
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-------------------
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begin : Wed Apr 4 2001
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copyright : (C) 2001 by Jan Schäfer
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email : janschaefer@users.sourceforge.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef IMAGEMAP_H
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#define IMAGEMAP_H
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#include <qscrollview.h>
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#include <qimage.h>
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#include <qpoint.h>
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#include <qrect.h>
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#include <qcursor.h>
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#include "kdeversion.h"
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class KImageMapEditor;
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class Area;
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/**
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*@short Draws the image and areas and handle the draw actions
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*@author Jan Schäfer
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*@internal
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*@see Area
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*/
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class DrawZone : public QScrollView {
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public:
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DrawZone(QWidget *parent,KImageMapEditor* _imageMapEditor);
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~DrawZone();
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QImage picture() const;
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void repaintArea(const Area & a);
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void repaintRect(const QRect & r);
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void cancelDrawing();
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void setPicture(const QImage &_image);
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void setZoom(double z);
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QPoint translateFromZoom(const QPoint & p) const;
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QRect translateFromZoom(const QRect & p) const;
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QPoint translateToZoom(const QPoint & p) const;
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QRect translateToZoom(const QRect & p) const;
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QRect getImageRect() const { return image.rect(); }
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protected:
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virtual void contentsMouseDoubleClickEvent(QMouseEvent*);
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virtual void contentsMousePressEvent(QMouseEvent*);
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virtual void contentsMouseReleaseEvent(QMouseEvent*);
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virtual void contentsMouseMoveEvent(QMouseEvent*);
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virtual void resizeEvent(QResizeEvent*);
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virtual void drawContents(QPainter*,int,int,int,int);
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virtual void viewportDropEvent(QDropEvent*);
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virtual void contentsDragEnterEvent(QDragEnterEvent*);
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virtual void contentsDropEvent(QDropEvent*);
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/**
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* Represents whats currently going on
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* @li None : Nothing
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* @li DrawCircle : The user is drawing a circle
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* @li DrawRectangle : The user is drawing a rectangle
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* @li MoveSelectionPoint : The user is resizing an @ref Area or moving a polygon point
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* @li MoveArea : The user is moving an @ref Area
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* @li DoSelect : The user makes a selection rectangle
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*/
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enum DrawAction { None, DrawCircle, DrawRectangle, DrawPolygon, DrawFreehand, MoveSelectionPoint, MoveArea, DoSelect, RemovePoint, AddPoint };
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void createBorderRectangles(const QRect & r,QRect & rb,QRect & lb,QRect & tb,QRect & bb);
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private:
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DrawAction currentAction;
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// The currently drawing area
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Area *currentArea;
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// Needed when moving selectionpoints
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QRect *currentSelectionPoint;
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// The point where the user clicked the mouse
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QPoint drawStart;
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QPoint drawCurrent;
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// The original image
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QImage image;
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KImageMapEditor *imageMapEditor;
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// Only the rect of the zoomed image, perhaps redundant
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QRect imageRect;
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// Only for repaint issues
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Area *oldArea;
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QRect oldSelectionRect;
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// Holds the zoomed image for efficiency reasons
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QPixmap zoomedImage;
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// The current zoom-factor
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double _zoom;
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QCursor RectangleCursor;
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QCursor CircleCursor;
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QCursor PolygonCursor;
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QCursor FreehandCursor;
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QCursor AddPointCursor;
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QCursor RemovePointCursor;
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};
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inline QImage DrawZone::picture() const {
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return image;
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}
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#endif
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