symbolLensArea.h

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/*********************************************************************
** Copyright (c) 2001 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: symbolLensArea.h,v $ $Revision: 1.26 $ $State: Exp $
*********************************************************************/


#ifndef SYMBOLLENSAREA_H
#define SYMBOLLENSAREA_H

#include "filterLenses/filterLensesDefines.h"
#include "filterLenses/lensArea.h"
class DtSymbol;
class DtSymbolList;

class DT_DLL_filterLenses DtSymbolLensArea : public DtLensArea
{
   Q_OBJECT

public:

   DtSymbolLensArea(QWidget * parent = 0, Qt::WindowFlags = 0, bool useGL = false);

   virtual ~DtSymbolLensArea();

   virtual void setSymbolList(DtSymbolList* mySymbolList);

   virtual DtSymbolList* symbolList();
   
public:

   static DtSymbolLensArea* create(QWidget * parent, const Qt::WindowFlags& flags, bool useGL = false);

   virtual void drawOrderSymbols(DtSymbolList* list, bool addAll);

   virtual void insertIntoDrawOrder(DtSymbol*);

   virtual void drawOrderSymbols();

   virtual DtSymbolList* drawOrder();

   virtual void clearDrawOrder();

   virtual void setForceDrawOrderAdd(bool);
   virtual bool forceDrawOrderAdd() const;

   void setBlockSymbolTick(bool);
   bool blockSymbolTick() const;

   virtual void removeSymbol(DtSymbol*);

public slots:
   //redraw the background
   virtual void tick();

protected slots:

   virtual void symbolDestroyed(QObject*);

protected:

   DtSymbol* filterModelData(DtSymbol* symbol);

   //Tick the symbolList if it exists.
   virtual void tickSymbolList();
   
   virtual void addSymbolToDrawOrder(DtSymbol* s);

protected:
   //The following items are passed into this class
   //Thus they are not owned or deleted, but the class
   //should be destroyed before these items are
   
   //Only one of these symbols is used at the same time
   DtSymbolList*  mySymbolList;

   DtSymbolList* myDrawOrder;

   bool myForceDrawOrderAdd;
   bool myBlockSymbolTick;
};

inline void DtSymbolLensArea::setBlockSymbolTick(bool b)
{
   myBlockSymbolTick = b;
}

inline bool DtSymbolLensArea::blockSymbolTick() const
{
   return myBlockSymbolTick;
}

#endif