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
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