← Back to branch summary

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

« back to all changes in this revision

Viewing changes to TuxGuitar/src/org/herac/tuxguitar/gui/undo/undoables/track/UndoableMoveTrackUp.java

  • Committer: Bazaar Package Importer
  • Author(s): Philippe Coval
  • Date: 2008-06-19 00:30:30 UTC
  • mto: (5.1.2 sid)
  • mto: This revision was merged to the branch mainline in revision 3.
  • Revision ID: james.westby@ubuntu.com-20080619003030-h719szrhsngou7c6
Tags: upstream-1.0
Import upstream version 1.0

Show diffs side-by-side

added added

removed removed

Lines of Context:
TuxGuitar/src/org/herac/tuxguitar/gui/undo/undoables/track/UndoableMoveTrackUp.java
 
1
package org.herac.tuxguitar.gui.undo.undoables.track;
 
2
 
 
3
import org.herac.tuxguitar.gui.TuxGuitar;
 
4
import org.herac.tuxguitar.gui.undo.CannotRedoException;
 
5
import org.herac.tuxguitar.gui.undo.CannotUndoException;
 
6
import org.herac.tuxguitar.gui.undo.UndoableEdit;
 
7
import org.herac.tuxguitar.gui.undo.undoables.UndoableCaretHelper;
 
8
import org.herac.tuxguitar.song.managers.TGSongManager;
 
9
import org.herac.tuxguitar.song.models.TGTrack;
 
10
 
 
11
public class UndoableMoveTrackUp implements UndoableEdit{
 
12
        private int doAction;
 
13
        private int trackNumber;
 
14
        private UndoableCaretHelper undoCaret;
 
15
        private UndoableCaretHelper redoCaret;
 
16
        
 
17
        private UndoableMoveTrackUp(){
 
18
                super();
 
19
        }
 
20
        
 
21
        public void redo() throws CannotRedoException {
 
22
                if(!canRedo()){
 
23
                        throw new CannotRedoException();
 
24
                }
 
25
                TGSongManager manager = TuxGuitar.instance().getSongManager();
 
26
                manager.moveTrackUp(manager.getTrack(this.trackNumber + 1));
 
27
                TuxGuitar.instance().fireUpdate();
 
28
                TuxGuitar.instance().getMixer().update();
 
29
                this.redoCaret.update();
 
30
                this.doAction = UNDO_ACTION;
 
31
        }
 
32
        
 
33
        public void undo() throws CannotUndoException {
 
34
                if(!canUndo()){
 
35
                        throw new CannotUndoException();
 
36
                }
 
37
                TGSongManager manager = TuxGuitar.instance().getSongManager();
 
38
                manager.moveTrackDown(manager.getTrack(this.trackNumber));
 
39
                TuxGuitar.instance().fireUpdate();
 
40
                TuxGuitar.instance().getMixer().update();
 
41
                this.undoCaret.update();
 
42
                this.doAction = REDO_ACTION;
 
43
        }
 
44
        
 
45
        public boolean canRedo() {
 
46
                return (this.doAction == REDO_ACTION);
 
47
        }
 
48
        
 
49
        public boolean canUndo() {
 
50
                return (this.doAction == UNDO_ACTION);
 
51
        }
 
52
        
 
53
        public static UndoableMoveTrackUp startUndo(){
 
54
                UndoableMoveTrackUp undoable = new UndoableMoveTrackUp();
 
55
                undoable.doAction = UNDO_ACTION;
 
56
                undoable.undoCaret = new UndoableCaretHelper();
 
57
                
 
58
                return undoable;
 
59
        }
 
60
        
 
61
        public UndoableMoveTrackUp endUndo(TGTrack track){
 
62
                this.redoCaret = new UndoableCaretHelper();
 
63
                this.trackNumber = track.getNumber();
 
64
                
 
65
                return this;
 
66
        }
 
67
        
 
68
}