DisplayDataHolder.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 DISPLAYDATAHOLDER_H_
#define DISPLAYDATAHOLDER_H_

#include <list>
#include <string>
namespace casa {

        class DisplayData;
        class QtDisplayData;
        class ImageTracker;
        class ImageDisplayer;

        class DisplayDataHolder {
        public:
                DisplayDataHolder();

                //Adds the DisplayData.
                void addDD( QtDisplayData* dd, int position, bool autoRegister,
                                bool masterCoordinate = false, bool masterSaturation= false,
                                bool masterHue=false);

                // Removes the QDD from the list and deletes it (if it existed --
                // Return value: whether qdd was in the list in the first place).
                bool removeDD(QtDisplayData* qdd);
                void removeDDAll();

                // Insert and discard to basically the same thing as add/remove
                // except that they perform the operation through a GUI level
                // if one is available.
                void insertDD( QtDisplayData* dd, int position, bool registered );
                void discardDD( QtDisplayData* dd );

                //Iteration support
                typedef std::list<QtDisplayData *> DisplayDataList;
                typedef DisplayDataList::const_iterator DisplayDataIterator;
                int getCount() const;
                bool isEmpty() const;
                bool isCoordinateMaster( QtDisplayData* displayData) const;
                DisplayDataIterator beginDD () const;
                DisplayDataIterator endDD () const;

                //Controlling DD
                QtDisplayData* getDDControlling( );
                void setDDControlling( QtDisplayData* controllingDD );

                //Returns the DD that will be animating the channels in
                //normal mode.
                QtDisplayData* getChannelDD( int index ) const;

                // retrieve a DD with given name (0 if none).
                QtDisplayData* getDD(const std::string& name) const;
                QtDisplayData *getDD( const DisplayData *dd ) const;
                QtDisplayData* getDD( int index );

                // Check that a given DD is on the list.
                bool exists(QtDisplayData* qdd) const;

                void setImageTracker( ImageTracker* tracker );
                void setImageDisplayer( ImageDisplayer* displayer );

                void registrationOrderChanged();
                virtual ~DisplayDataHolder();
        private:
                DisplayDataHolder( const DisplayDataHolder& displayDataHolder );
                DisplayDataHolder operator=( const DisplayDataHolder& displayDataHolder );
                ImageTracker* imageTracker;
                ImageDisplayer* imageDisplayer;
                QtDisplayData *controlling_dd;
                std::list<QtDisplayData*> dataList;
        };

} /* namespace casa */
#endif /* DISPLAYDATAHOLDER_H_ */