~ubuntu-branches/ubuntu/oneiric/tuxguitar/oneiric

package org.herac.tuxguitar.gui.undo.undoables.track;

 

import org.herac.tuxguitar.gui.TuxGuitar;

import org.herac.tuxguitar.gui.editors.tab.Caret;

import org.herac.tuxguitar.gui.undo.CannotRedoException;

import org.herac.tuxguitar.gui.undo.CannotUndoException;

import org.herac.tuxguitar.gui.undo.UndoableEdit;

import org.herac.tuxguitar.gui.undo.undoables.UndoableCaretHelper;

import org.herac.tuxguitar.song.managers.SongManager;

import org.herac.tuxguitar.song.models.SongTrack;

import org.herac.tuxguitar.song.models.RGBColor;

 

public class UndoableInfoTrack implements UndoableEdit{

        private int doAction;

        private int trackNumber;

        private UndoableCaretHelper undoCaret;

        private UndoableCaretHelper redoCaret;          

        private String undoName;

        private String redoName;

        private RGBColor undoColor;

        private RGBColor redoColor;

        private int undoOffset;

        private int redoOffset;

        

        private UndoableInfoTrack(){

                

        }

        

        public void redo() throws CannotRedoException { 

                if(!canRedo()){

                        throw new CannotRedoException();

                }   

                SongManager manager = TuxGuitar.instance().getSongManager();

                manager.getTrackManager().changeInfo(manager.getTrack(trackNumber),redoName,(RGBColor)redoColor.clone(),redoOffset);

                TuxGuitar.instance().fireUpdate();

                TuxGuitar.instance().getMixer().update();

                this.redoCaret.update();                

                this.doAction = UNDO_ACTION;

        }

 

        public void undo() throws CannotUndoException {

                if(!canUndo()){

                        throw new CannotUndoException();

                }                                       

                SongManager manager = TuxGuitar.instance().getSongManager();

                manager.getTrackManager().changeInfo(manager.getTrack(trackNumber),undoName,(RGBColor)undoColor.clone(),undoOffset);

                TuxGuitar.instance().fireUpdate();

                TuxGuitar.instance().getMixer().update();

                this.undoCaret.update();

                

                this.doAction = REDO_ACTION;

        }

 

    public boolean canRedo() {

        return (doAction == REDO_ACTION);

    }

 

    public boolean canUndo() {

        return (doAction == UNDO_ACTION);

    }

      

    public static UndoableInfoTrack startUndo(SongTrack track){

        UndoableInfoTrack undoable = new UndoableInfoTrack();

        Caret caret = getCaret();               

        undoable.doAction = UNDO_ACTION;

        undoable.trackNumber = track.getNumber();

        undoable.undoCaret = new UndoableCaretHelper();                         

        undoable.undoName = track.getName();

        undoable.undoColor = (RGBColor)track.getColor().clone();

        undoable.undoOffset = track.getOffset();

        

        return undoable;

    }

    

    public UndoableInfoTrack endUndo(SongTrack track){

        this.redoCaret = new UndoableCaretHelper();                     

        this.redoName = track.getName();

        this.redoColor = (RGBColor)track.getColor().clone();

        this.redoOffset = track.getOffset();

        

        return this;

    }

    

    private static Caret getCaret(){

        return TuxGuitar.instance().getTablatureEditor().getTablature().getCaret();

    }  

 

}