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DSScreenText.h
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00001 //# DSScreenText : Implementation of a relative screen pos. DSText
00002 //# Copyright (C) 1998,1999,2000,2001,2002
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 #ifndef TRIALDISPLAY_DSSCREENTEXT_H
00028 #define TRIALDISPLAY_DSSCREENTEXT_H
00029 
00030 #include <casa/aips.h>
00031 #include <casa/Arrays/Vector.h> 
00032 #include <casa/Arrays/Matrix.h>
00033 
00034 #include <display/DisplayShapes/DSText.h>
00035 #include <display/DisplayShapes/DisplayShapeWithCoords.h>
00036 
00037 namespace casa { //# NAMESPACE CASA - BEGIN
00038 
00039 // <summary>
00040 // Implementation of a relative screen pos. DSText
00041 // </summary>
00042 
00043 class PixelCanvas;
00044 class DSWorldText;
00045 class DSPixelText;
00046 class Record;
00047 
00048 class DSScreenText : public DSText , public DisplayShapeWithCoords {
00049   
00050 public:
00051   
00052   DSScreenText();
00053   DSScreenText(const Record& settings, PixelCanvas* pc);
00054   DSScreenText(DSPixelText& other, PixelCanvas* pc);
00055   DSScreenText(DSWorldText& other);
00056   
00057   virtual ~DSScreenText();
00058 
00059   virtual void recalculateScreenPosition();
00060   virtual Bool setOptions(const Record& settings);
00061   virtual Record getOptions();
00062 
00063   // These are so we can monitor if the text is moved and update our
00064   // relative position
00065   virtual void move(const Float& dX, const Float& dY);
00066   virtual void setCenter(const Float& xPos, const Float& yPos);
00067 
00068   virtual Record getRawOptions() {
00069     return DSText::getOptions();
00070   }
00071 private:
00072   
00073   PixelCanvas* itsPC;
00074   Vector<Float> itsRelativeCenter;
00075   
00076   virtual Vector<Float> relToScreen(const Vector<Float>& rel);
00077   virtual Vector<Float> screenToRel(const Vector<Float>& screen);
00078   virtual void updateRC();
00079 };
00080 
00081 } //# NAMESPACE CASA - END
00082 
00083 #endif