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/***************************************************************************
kimearea.h - description
-------------------
begin : Thu Jun 14 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 KIMEAREA_H
#define KIMEAREA_H
#include <qrect.h>
#include <qpoint.h>
#include <qptrlist.h>
#include <klocale.h>
#include <qmap.h>
#include "kdeversion.h"
class QPainter;
class QPointArray;
class QListViewItem;
class QBitmap;
typedef QPtrList<QRect> SelectionPointList;
typedef QMap<QString,QString> AttributeMap;
typedef QMapConstIterator<QString,QString> AttributeIterator;
class Area
{
public:
enum ShapeType { None, Rectangle, Circle, Polygon, Default, Selection };
static bool highlightArea;
static bool showAlt;
protected:
QRect _rect;
ShapeType _type;
QString _name;
QString _href;
QString _alt;
QString _target;
AttributeMap _attributes;
bool _isSelected;
bool _finished;
bool _isMoving;
int currentHighlighted;
QListViewItem* _listViewItem;
// Only used for Polygons
QPointArray *_coords;
SelectionPointList *_selectionPoints;
QPixmap *_highlightedPixmap;
void drawHighlighting(QPainter & p);
void drawAlt(QPainter & p);
QString getHTMLAttributes() const;
public:
Area();
virtual ~Area();
virtual Area* clone() const;
// Default implementation; is specified by subclasses
virtual bool contains(const QPoint &) const;
// Default implementation; is specified by subclasses
virtual QString coordsToString() const;
virtual void draw(QPainter &);
virtual QBitmap getMask() const;
virtual QString getHTMLCode() const;
virtual void setHighlightedPixmap( QImage &, QBitmap &);
virtual void moveBy(int, int);
virtual void moveTo(int, int);
virtual void moveSelectionPoint(QRect*, const QPoint &);
virtual QRect* onSelectionPoint(const QPoint &,double zoom) const;
virtual bool removeSelectionPoint(QRect * r);
virtual SelectionPointList* selectionPoints() const { return _selectionPoints; }
virtual QRect rect() const;
virtual QRect selectionRect() const;
virtual void setArea(const Area &);
virtual bool setCoords(const QString &);
/** finished drawing only important for polygon */
virtual void setFinished(bool b) { _finished=b; }
virtual void setRect(const QRect &);
virtual void setMoving(bool b);
virtual bool isMoving() const;
// Default implementation; is specified by subclasses
virtual QString typeString() const { return ""; }
virtual ShapeType type() const;
virtual void updateSelectionPoints() {};
// Only interesting for Polygons
virtual void simplifyCoords() {};
virtual int addCoord(const QPoint &);
virtual void insertCoord(int, const QPoint &);
virtual void removeCoord(int);
virtual void moveCoord(int,const QPoint &);
virtual QPointArray* coords() const;
virtual void highlightSelectionPoint(int);
virtual QString attribute(const QString &) const;
virtual void setAttribute(const QString &, const QString &);
virtual AttributeIterator firstAttribute() const;
virtual AttributeIterator lastAttribute() const;
QPixmap cutOut(const QImage &) ;
void setListViewItem(QListViewItem*);
void deleteListViewItem();
QListViewItem* listViewItem() const;
void setName(const QString &);
QString name() const;
void setSelected(bool b);
bool isSelected() const;
bool finished() const;
uint countSelectionPoints() const;
};
inline QListViewItem* Area::listViewItem() const {
return _listViewItem;
}
inline void Area::setName(const QString & name) {
_name=name;
}
inline QString Area::name() const {
return _name;
}
inline bool Area::isMoving() const {
return _isMoving;
}
inline bool Area::isSelected() const {
return _isSelected;
}
inline bool Area::finished() const {
return _finished;
}
/**
* Represents a Rectangle Area
**/
class RectArea : public Area
{
public:
RectArea();
virtual ~RectArea();
virtual Area* clone() const;
virtual bool contains(const QPoint & p) const;
virtual QString coordsToString() const;
virtual void draw(QPainter & p);
virtual void moveSelectionPoint(QRect* selectionPoint, const QPoint & p);
virtual bool setCoords(const QString & s);
virtual QString typeString() const { return i18n("Rectangle"); }
virtual QBitmap getMask() const;
virtual QString getHTMLCode() const;
virtual void updateSelectionPoints();
};
/**
* Represents a Circle Area
**/
class CircleArea : public Area
{
public:
CircleArea();
virtual ~CircleArea();
virtual Area* clone() const;
virtual bool contains(const QPoint & p) const;
virtual QString coordsToString() const;
virtual void draw(QPainter & p);
virtual void moveSelectionPoint(QRect* selectionPoint, const QPoint & p);
virtual bool setCoords(const QString & s);
virtual void setRect(const QRect & r);
virtual QString typeString() const { return i18n("Circle"); }
virtual QBitmap getMask() const;
virtual QString getHTMLCode() const;
virtual void updateSelectionPoints();
};
/**
* Represents a Rectangle Area
**/
class PolyArea :public Area
{
public:
PolyArea();
virtual ~PolyArea();
virtual Area* clone() const;
virtual bool contains(const QPoint & p) const;
virtual QString coordsToString() const;
virtual void draw(QPainter & p);
virtual void moveSelectionPoint(QRect* selectionPoint, const QPoint & p);
virtual void simplifyCoords();
virtual int addCoord(const QPoint & p);
virtual bool setCoords(const QString & s);
virtual QRect selectionRect() const;
virtual void setFinished(bool b);
virtual QString typeString() const { return i18n("Polygon"); }
virtual QBitmap getMask() const;
virtual QString getHTMLCode() const;
virtual void updateSelectionPoints();
private:
static int distance(const QPoint &p1, const QPoint &p2);
static bool isBetween(const QPoint &p, const QPoint &p1, const QPoint &p2);
};
/**
* Represents the default Area
**/
class DefaultArea :public Area
{
public:
DefaultArea();
virtual ~DefaultArea();
virtual Area* clone() const;
// the default area isn't drawn
virtual void draw(QPainter & p);
virtual QString typeString() const { return i18n("Default"); }
virtual QString getHTMLCode() const;
};
typedef QPtrList<Area> AreaList;
typedef QPtrListIterator<Area> AreaListIterator;
/**
* This class represents a selection of areas
* all operations performed on this class
* will be performed on the selected Areas
* the only actions that can be used is the
* move action
**/
class AreaSelection : public Area {
public :
AreaSelection();
virtual ~AreaSelection();
/**
* New Methods
*/
// Adding automatically selects the area
void add(Area *a);
// Removing automatically deselects the area
void remove(Area *a);
// Removes all areas from the list and deselects them
void reset();
uint count() const;
AreaList getAreaList() const;
AreaListIterator getAreaListIterator() const;
void setAreaList( const AreaList & areas );
bool isEmpty() const;
/**
* Overiden Methods of the Area class
*/
virtual bool contains(const QPoint & p) const;
/**
*
**/
virtual QRect* onSelectionPoint(const QPoint & p, double zoom) const;
/**
* Only if one Area is selected the moveSelectionPoint method
* of that Area will be called
**/
virtual void moveSelectionPoint(QRect* selectionPoint, const QPoint & p);
virtual SelectionPointList* selectionPoints() const;
/**
* All Areas will be moved by dx and dy
**/
virtual void moveBy(int dx, int dy);
/**
* Calls for every selected Area the setArea with the
* corresponding Area in the copy Selection.
* IMPORTANT : works only if the copy Area is an AreaSelection
* and have the same number of Areas
**/
virtual void setArea(const Area & copy);
virtual void setAreaSelection(const AreaSelection & copy);
/**
* If only one Area is selected the setRect method of that Area
* will be called
**/
virtual void setRect(const QRect & r);
virtual QRect rect() const;
virtual QString typeString() const;
virtual ShapeType type() const;
// The selection is only a container
// so it is never drawn
virtual void draw(QPainter & p);
/**
* A deep copy of the Areas
**/
virtual Area* clone() const;
virtual void updateSelectionPoints();
virtual int addCoord(const QPoint & p);
virtual void insertCoord(int pos, const QPoint & p);
virtual void removeCoord(int pos);
virtual bool removeSelectionPoint(QRect * r);
virtual void moveCoord(int pos,const QPoint & p);
virtual QPointArray* coords() const;
virtual void highlightSelectionPoint(int);
virtual QRect selectionRect() const;
virtual QString attribute(const QString & name) const;
virtual void setAttribute(const QString & name, const QString & value);
virtual AttributeIterator firstAttribute() const;
virtual AttributeIterator lastAttribute() const;
virtual void setMoving(bool b);
virtual bool isMoving() const;
bool allAreasWithin(const QRect & r) const;
// makes the cache invalid
void invalidate();
private :
AreaList *_areas;
// The selectionRect and the rect are cached
// so even in const functions they must be changeable
mutable QRect _cachedSelectionRect;
mutable QRect _cachedRect;
mutable bool _selectionCacheValid;
mutable bool _rectCacheValid;
};
inline void AreaSelection::invalidate() {
_selectionCacheValid=false;
_rectCacheValid=false;
}
#endif
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