include/filterLenses/lensArea.h

Go to the documentation of this file.

/*********************************************************************
** Copyright (c) 2001 MAK Technologies, Inc.
** All rights reserved.
*********************************************************************/
/*********************************************************************
** $RCSfile: lensArea.h,v $ $Revision: 1.23 $ $State: Exp $
*********************************************************************/


#ifndef DtLensArea_H_
#define DtLensArea_H_

#include <QtGui/QWidget>
#include "ngutil/dtqlist.h"

class QPopupMenu;
class DtFilterLens;
class DtLensGLWidget;

#include "filterLenses/filterLensesDefines.h"
class DT_DLL_filterLenses DtLensArea : public QWidget
{
   Q_OBJECT
public:

   DtLensArea(QWidget * parent = 0, Qt::WindowFlags flags = 0, bool useOpenGL = false);

   virtual ~DtLensArea();

   virtual QPainter* paintDevice();

   virtual void paint(QPainter* toDevice, bool drawBackground = true);

   virtual void setUsePixmap(bool b);

   virtual void updateArea();

   virtual void repaintArea();

signals:
   void dropEventSignal(QDropEvent*);
   void dragEnterEventSignal(QDragEnterEvent*);
   void dragLeaveEventSignal(QDragLeaveEvent*);
   void dragMoveEventSignal(QDragMoveEvent*);

   void createdGlobalFilter(DtFilterLens* lens);
   void deletingGlobalFilter(DtFilterLens* lens);

   void backgroundDrawn(QPainter* p);
   void aboutToDraw(QPainter* p);

public slots:

   virtual void createLens(DtFilterLens* lens);
   virtual void moveToStackTop(DtFilterLens* lens);

   virtual void deleteLens(DtFilterLens* lens);

   virtual void removeGlobalFilter(DtFilterLens * lens);
   virtual void deleteAllGlobalFilters();
   virtual void deleteGlobalFilter(DtFilterLens * lens);
   virtual void addGlobalFilter(DtFilterLens * lens);
   virtual void insertGlobalFilter(int iIndex, DtFilterLens* lens);
   virtual void moveToGlobal(DtFilterLens * lens);

   //This function alternates the location betweeen two lenses
   virtual void reorderGlobalFilter(DtFilterLens * preLens,
                                    DtFilterLens * postLens);
   //background
   virtual void setBackground(QPixmap* bg);
   virtual QPixmap* background() const;

   virtual void setAutoDeleteFilters(bool b);

   virtual void resizeEvent(QResizeEvent* evnt);

protected:
   //redraw the background
   virtual void tick();

   virtual void paintEvent ( QPaintEvent * evnt );

   virtual void dragEnterEvent( QDragEnterEvent* e);
   virtual void dragLeaveEvent( QDragLeaveEvent* e);
   virtual void dragMoveEvent( QDragMoveEvent* e);
   virtual void dropEvent( QDropEvent* e);

private:
   DtLensArea(const DtLensArea& orig);

   DtLensArea& operator=(const DtLensArea& orig);

protected:
   DtPtrQList<DtFilterLens*> * myLensList;
   DtPtrQList<DtFilterLens*> * myGlobalLensList;

   DtFilterLens* myDeferredLens; 
   QPixmap *myBackground;
   QPainter *myPaintDevice;

   QPixmap* myPix;

   bool myAutoDelete;
   bool myDrawBackground;

   bool myInPaint;

   DtLensGLWidget*   myLensGLWidget;
};

#endif