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Viewing changes to src/org/herac/tuxguitar/gui/undo/undoables/custom/UndoableChangeOpenRepeat.java

  • Committer: Bazaar Package Importer
  • Author(s): Philippe Coval
  • Date: 2007-02-04 01:41:23 UTC
  • Revision ID: james.westby@ubuntu.com-20070204014123-9pv7okph0iaiqkvw
Tags: upstream-0.9.1
Import upstream version 0.9.1

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src/org/herac/tuxguitar/gui/undo/undoables/custom/UndoableChangeOpenRepeat.java
 
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package org.herac.tuxguitar.gui.undo.undoables.custom;
 
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import org.herac.tuxguitar.gui.TuxGuitar;
 
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import org.herac.tuxguitar.gui.editors.tab.Caret;
 
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import org.herac.tuxguitar.gui.undo.CannotRedoException;
 
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import org.herac.tuxguitar.gui.undo.CannotUndoException;
 
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import org.herac.tuxguitar.gui.undo.UndoableEdit;
 
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import org.herac.tuxguitar.gui.undo.undoables.UndoableCaretHelper;
 
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import org.herac.tuxguitar.song.managers.SongManager;
 
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import org.herac.tuxguitar.song.models.Measure;
 
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public class UndoableChangeOpenRepeat implements UndoableEdit{
 
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        private int doAction;
 
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        private UndoableCaretHelper undoCaret;
 
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        private UndoableCaretHelper redoCaret;          
 
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        private long position;  
 
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        private UndoableChangeOpenRepeat(){
 
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        }
 
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        public void redo() throws CannotRedoException { 
 
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                if(!canRedo()){
 
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                        throw new CannotRedoException();
 
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                }                       
 
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                SongManager manager = TuxGuitar.instance().getSongManager();
 
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                manager.changeOpenRepeat(position);
 
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                Measure measure = manager.getTrackManager().getMeasureAt(manager.getFirstTrack(),position);
 
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                TuxGuitar.instance().getTablatureEditor().getTablature().getViewLayout().fireUpdate(measure.getNumber(),false);
 
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                this.redoCaret.update();
 
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                this.doAction = UNDO_ACTION;
 
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        }
 
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        public void undo() throws CannotUndoException {
 
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                if(!canUndo()){
 
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                        throw new CannotUndoException();
 
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                }       
 
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                SongManager manager = TuxGuitar.instance().getSongManager();
 
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                manager.changeOpenRepeat(position);
 
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                Measure measure = manager.getTrackManager().getMeasureAt(manager.getFirstTrack(),position);
 
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                TuxGuitar.instance().getTablatureEditor().getTablature().getViewLayout().fireUpdate(measure.getNumber(),false);
 
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                this.undoCaret.update();
 
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                this.doAction = REDO_ACTION;
 
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        }
 
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    public boolean canRedo() {
 
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        return (doAction == REDO_ACTION);
 
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    }
 
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    public boolean canUndo() {
 
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        return (doAction == UNDO_ACTION);
 
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    }
 
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    public static UndoableChangeOpenRepeat startUndo(){
 
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        UndoableChangeOpenRepeat undoable = new UndoableChangeOpenRepeat();
 
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        Caret caret = getCaret();               
 
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        undoable.doAction = UNDO_ACTION;
 
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        undoable.undoCaret = new UndoableCaretHelper();
 
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        undoable.position = caret.getPosition();        
 
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        return undoable;
 
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    }
 
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    public UndoableChangeOpenRepeat endUndo(){
 
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        this.redoCaret = new UndoableCaretHelper();
 
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        return this;
 
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    }    
 
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    private static Caret getCaret(){
 
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        return TuxGuitar.instance().getTablatureEditor().getTablature().getCaret();
 
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    }  
 
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}