include/tmEventHandler/circleResizingHandler.h

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/*******************************************************************************
** Copyright (c) 2003 MAK Technologies, Inc.
** All rights reserved.
*******************************************************************************/
/*******************************************************************************
** $RCSfile: circleResizingHandler.h,v $ $Revision: 1.12 $ $State: Exp $
*******************************************************************************/


#ifndef CIRCLERESIZINGHANDLER_H_
#define CIRCLERESIZINGHANDLER_H_

#include "tmqt/eventHandler.h"
#include "symbolMapper/modelKey.h"

class DtResizableCircleSymbol;
class QPoint;
class DtTMMapArea;
class DtModelData;
class DtSymbol;

#include "tmEventHandler/tmEventHandlerDefines.h"
class DT_DLL_tmEventHandler DtCircleResizingHandler : public DtEventHandler
{
   Q_OBJECT
   
public:

   DtCircleResizingHandler();
   
   virtual ~DtCircleResizingHandler();

public:
   static DtEventHandler* create(DtEventController* owner, void* usr);

   bool accepted() const;

   virtual void circleMove(DtTMMapArea* area, DtModelData* data, const DtPoint& delta);

public slots:

   virtual bool mouseEvent(DtTMMapArea* area, QMouseEvent* evnt, const DtPoint& pnt);
   virtual bool keyboardEvent(DtTMMapArea* area, QKeyEvent* evnt);
   virtual void originalDestroyed();
   virtual void resizeSymbolDestroyed();
   virtual void removeTempSymbol();

   virtual void done();

protected:
   virtual bool cancelSizing();
   virtual void resizeObject(const QPoint* origin, const QPoint* endPt);
   virtual DtResizableCircleSymbol* circleSymbol(DtTMMapArea*, const DtModelKey&);
   virtual DtResizableCircleSymbol* circleSymbol(DtSymbol* sym);
   virtual DtSymbol* createTempSymbol(DtSymbol* symbol);
   virtual void initializeResize(DtTMMapArea* area, DtModelData* data);

   virtual void backup();
   virtual void restore();

   virtual void acceptChanges(bool completeToMapArea = true);

   virtual void setModelDataFromSymbol(const QList<int>* indices = NULL);
   virtual void computeMovePoints(QPoint* points[2], DtTMMapArea* area, DtModelData* data, const DtPoint& delta);

protected:
   DtTMMapArea* myMapArea;
   DtModelData* myModelData;
   DtSymbol* myResizeSymbol;
   DtSymbol* myHideSymbol;

   QVector<DtPoint> myBackupPoints;
   bool myBackupIsModelData;

   bool myAccepted;
};

inline bool DtCircleResizingHandler::accepted() const
{
   return myAccepted;
}

#endif //CIRCLERESIZINGHANDLER_H_