ImageTracker.h

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//# Copyright (C) 2005
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library General Public License as published by
//# the Free Software Foundation; either version 2 of the License, or (at your
//# option) any later version.
//#
//# This library is distributed in the hope that it will be useful, but WITHOUT
//# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
//# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//#        Internet email: aips2-request@nrao.edu.
//#        Postal address: AIPS++ Project Office
//#                        National Radio Astronomy Observatory
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//#

#ifndef IMAGETRACKER_H_
#define IMAGETRACKER_H_

namespace casa {

class QtDisplayData;

class ImageTracker {
public:
        virtual void imageAdded( QtDisplayData* image ) = 0;
        virtual void imageRemoved( QtDisplayData* image ) = 0;
        virtual void masterImageSelected( QtDisplayData* image ) =0;
        ImageTracker(){}
        virtual ~ImageTracker(){}

};

class ImageDisplayer {
public:
        ImageDisplayer(){}
        virtual ~ImageDisplayer(){}
        virtual void setControllingDD( QtDisplayData* /*controlDD*/ ){
        }
        virtual void registerDD( QtDisplayData* dd, int position = -1) = 0;
        virtual void unregisterDD( QtDisplayData* dd ) = 0;
};

}
#endif /* IMAGETRACKER_H_ */