symbolFilterLens.h

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/*********************************************************************
** Copyright (c) 2001 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: symbolFilterLens.h,v $ $Revision: 1.22 $ $State: Exp $
*********************************************************************/


#ifndef DtsymbolFilterLens_H_
#define DtsymbolFilterLens_H_

#include "filterLenses/filterLens.h"

#include "symbology/symbol.h"

class DtRectSymbol;
class DtLensArea;
class QPixmap;

#include "filterLenses/filterLensesDefines.h"
class DT_DLL_filterLenses DtSymbolFilterLens : public DtFilterLens
{
   Q_OBJECT

public:

   DtSymbolFilterLens(const char * name = 0,
      DtLensArea * parent = 0);

   virtual ~DtSymbolFilterLens();

   virtual void grabRelevantData(DtSymbolList* original, 
                                 DtSymbolList* modified,
                                 QPixmap* background = 0,
                                 bool isGlobal = false);

   virtual void filterOriginals(DtSymbolList* symbolList);
   
   virtual DtSymbol* modifySymbol(
                    DtSymbol* orig, 
                    bool createClone = false);
   
   virtual bool modifyConditional(DtSymbol* newSymbol) {return false;};

   virtual bool checkConditional(DtSymbol* newSymbol);

   virtual bool deleteModifiedList();

   virtual void modifiedListAboutToBeFreed(DtSymbolList* sl);

   virtual bool createClone() const;

public slots:
   virtual void filterSymbolDestroyed(QObject*);

protected:

   DtSymbolList myModifiedSymbolList;
};

#endif //DtsymbolFilterLens_H_