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DrawingDisplayMethod.h
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00001 //# DrawingDisplayMethod.h: actual drawing for interactive DrawingDisplayData
00002 //# Copyright (C) 1999,2000,2001
00003 //# Associated Universities, Inc. Washington DC, USA.
00004 //#
00005 //# This library is free software; you can redistribute it and/or modify it
00006 //# under the terms of the GNU Library General Public License as published by
00007 //# the Free Software Foundation; either version 2 of the License, or (at your
00008 //# option) any later version.
00009 //#
00010 //# This library is distributed in the hope that it will be useful, but WITHOUT
00011 //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
00012 //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
00013 //# License for more details.
00014 //#
00015 //# You should have received a copy of the GNU Library General Public License
00016 //# along with this library; if not, write to the Free Software Foundation,
00017 //# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
00018 //#
00019 //# Correspondence concerning AIPS++ should be addressed as follows:
00020 //#        Internet email: aips2-request@nrao.edu.
00021 //#        Postal address: AIPS++ Project Office
00022 //#                        National Radio Astronomy Observatory
00023 //#                        520 Edgemont Road
00024 //#                        Charlottesville, VA 22903-2475 USA
00025 //#
00026 //# $Id$
00027 
00028 #ifndef TRIALDISPLAY_DRAWINGDISPLAYMETHOD_H
00029 #define TRIALDISPLAY_DRAWINGDISPLAYMETHOD_H
00030 
00031 #include <casa/aips.h>
00032 #include <display/Display/DisplayEnums.h>
00033 #include <display/Display/WorldCanvasHolder.h>
00034 #include <display/DisplayDatas/CachingDisplayMethod.h>
00035 
00036 namespace casa { //# NAMESPACE CASA - BEGIN
00037 
00038 class WorldCanvas;
00039 class DrawingDisplayData;
00040 
00041 // <summary>
00042 // DisplayMethod which provides actual drawing for DrawingDisplayData class.
00043 // </summary>
00044 
00045 // <synopsis>
00046 // This class provides the necessary implementation for the
00047 // actual drawing of the objects contained within a 
00048 // DrawingDisplayData object. 
00049 // </synopsis>
00050 
00051 class DrawingDisplayMethod : public CachingDisplayMethod {
00052 
00053  public:
00054 
00055   // Constructor.
00056   DrawingDisplayMethod(WorldCanvas *worldCanvas, 
00057                        AttributeBuffer *wchAttributes,
00058                        AttributeBuffer *ddAttributes,
00059                        CachingDisplayData *dd);
00060   
00061   // Destructor.
00062   virtual ~DrawingDisplayMethod();
00063 
00064   // Clean up (ie. delete any existing cached display list).
00065   virtual void cleanup();
00066 
00067   // Draw into a cached drawing list, called by draw function.
00068   virtual Bool drawIntoList(Display::RefreshReason reason,
00069                             WorldCanvasHolder &wcHolder);
00070   
00071  protected:
00072 
00073   // (Required) default constructor.
00074   DrawingDisplayMethod();
00075 
00076   // (Required) copy constructor.
00077   DrawingDisplayMethod(const DrawingDisplayMethod &other);
00078 
00079   // (Required) copy assignment.
00080   void operator=(const DrawingDisplayMethod &other);
00081 
00082  private:
00083 
00084 };
00085 
00086 
00087 } //# NAMESPACE CASA - END
00088 
00089 #endif