casa  $Rev:20696$
 All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Defines
DDDRectangle.h
Go to the documentation of this file.
00001 //# DDDRectangle.h: implementation of rectangular DDDObject
00002 //# Copyright (C) 1999,2000,2002
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_DDDRECTANGLE_H
00029 #define TRIALDISPLAY_DDDRECTANGLE_H
00030 
00031 #include <casa/aips.h>
00032 #include <casa/Arrays/Vector.h>
00033 #include <casa/Containers/Record.h>
00034 #include <display/DisplayDatas/DDDObject.h>
00035 
00036 namespace casa { //# NAMESPACE CASA - BEGIN
00037 
00038 // <summary>
00039 // Implementation of a rectangular object for DrawingDisplayData class.
00040 // </summary>
00041 
00042 // <synopsis>
00043 // This class implements the interface defined by DDDObject, to provide
00044 // a rectangle object for registration with DrawingDisplayData objects.
00045 // </synopsis>
00046 
00047 class DDDRectangle : public DDDObject {
00048 
00049  public:
00050 
00051   // Constructor taking a Record description.  Fields in the record,
00052   // on top of what is consumed by the DDDObject constructor, are:
00053   // <src>blc</src> and <src>trc</src>.
00054   DDDRectangle(const Record &description, DrawingDisplayData *owner);
00055 
00056   // Destructor.
00057   virtual ~DDDRectangle();
00058 
00059   
00060   // Draw this rectangle object for the given reason on the provided
00061   // WorldCanvas.
00062   virtual void draw(const Display::RefreshReason &reason, 
00063                     WorldCanvas *worldcanvas);
00064   
00065   // Return a record describing this object.
00066   virtual Record description();
00067 
00068   // Update this object based on the information in the provided
00069   // Record.
00070   virtual void setDescription(const Record &rec);
00071   
00072   // Event handlers.  The parent DrawingDisplayData will distribute
00073   // events as necessary to the various DDDObjects which comprise it.
00074   // <group>
00075   virtual void operator()(const WCRefreshEvent &/*ev*/) {;};
00076   virtual void operator()(const WCPositionEvent &ev);
00077   virtual void operator()(const WCMotionEvent &ev);
00078   // </group>
00079 
00080  protected:
00081 
00082   // (Required) default constructor.
00083   DDDRectangle();
00084 
00085   // (Required) copy constructor.
00086   DDDRectangle(const DDDRectangle &other);
00087 
00088   // (Required) copy assignment.
00089   void operator=(const DDDRectangle &other);
00090   
00091  private:
00092 
00093   // Blc and trc of rectangle in world coordinates.
00094   Vector<Double> itsBlc, itsTrc;
00095 
00096   // Handle coordinates.
00097   Vector<Int> itsHX, itsHY;
00098 
00099   // Mode.
00100   DDDObject::Mode itsMode;
00101 
00102   // Store for movement bases.
00103   Int itsBaseMoveX, itsBaseMoveY;
00104 
00105   // is it a left handle?  a bottom handle?
00106   Bool itsLeftHandle, itsBottomHandle;
00107 
00108 };
00109 
00110 
00111 } //# NAMESPACE CASA - END
00112 
00113 #endif