include/symbolDrawer/bmpDrawer.h

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/*********************************************************************
** Copyright (c) 2001 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: bmpDrawer.h,v $ $Revision: 1.25 $ $State: Exp $
*********************************************************************/


#ifndef DtBMPDrawer_H_
#define DtBMPDrawer_H_

#include "symbolDrawer/baseSymbolDrawer.h"
class DtSymbol;
class DtBMPSymbol;
class DtCenterPoint;
class QBitmap;

#include <QtCore/QCache>
#include <QtGui/QImage>

#include "symbolDrawer/symbolDrawerDefines.h"

class DT_DLL_symbolDrawer DtBMPDrawer : public DtBaseSymbolDrawer
{
public:

   DtBMPDrawer();
   virtual ~DtBMPDrawer();

   virtual bool         draw( QPainter& paint,
                              const DtSymbol * const symbol ) const;

   virtual QSize        calcBBox( const DtSymbol * const symbol ) const;

   static DtSymbolDrawer* create();

protected:
   virtual const QImage *     constructBMP( const DtBMPSymbol & b ) const;
   
   virtual const QImage*      constructHighlight( const QPixmap* p) const;

   virtual void               renderBMP( QPainter& paint,
                                         const DtBMPSymbol & symbol,
                                         const QPixmap * pix ) const;

   virtual void applyGhosting(QImage* p) const;
   
   virtual const QPixmap*     insertPix( const DtBMPSymbol & bmpSymbol,
                                         const QImage * pix ) const;
   
   virtual const QPixmap*     insertPix( const QString & key,
                                         const QImage * pix ) const;

   virtual const QPixmap*     insertHighlight( const DtBMPSymbol & bmpSymbol,
                                               const QImage * pix ) const;

   virtual const QPixmap *    lookupPix( const DtBMPSymbol & bmpSymbol ) const;

   virtual const QPixmap *    lookupHighlight( const DtBMPSymbol & bmpSymbol ) const;

private:
   DtBMPDrawer(const DtBMPDrawer& orig);
   DtBMPDrawer& operator=(const DtBMPDrawer& orig);
   
protected:
   mutable QCache<QString, const QPixmap>    myCache;
   mutable QCache<QString, const QPixmap>    myHighlightCache;
};

#endif