1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
|
/*******************************************************************************
* Copyright (c) 2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.debug.examples.ui.midi.adapters;
import javax.sound.midi.Sequencer;
import javax.sound.midi.Track;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.debug.examples.core.midi.launcher.ClockControl;
import org.eclipse.debug.examples.core.midi.launcher.LengthControl;
import org.eclipse.debug.examples.core.midi.launcher.MidiLaunch;
import org.eclipse.debug.examples.core.midi.launcher.SequencerControl;
import org.eclipse.debug.examples.core.midi.launcher.TempoControl;
import org.eclipse.debug.internal.ui.model.elements.ElementContentProvider;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext;
import org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate;
import org.eclipse.debug.ui.IDebugUIConstants;
/**
* Provides content for a MIDI sequencer element (MIDI launch).
*
* @since 1.0
*/
public class SequencerContentProvider extends ElementContentProvider {
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#getChildCount(java.lang.Object, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate)
*/
@Override
protected int getChildCount(Object element, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
if (IDebugUIConstants.ID_DEBUG_VIEW.equals(context.getId())) {
return getTracks((MidiLaunch) element).length;
} else if (IDebugUIConstants.ID_VARIABLE_VIEW.equals(context.getId())) {
if (((MidiLaunch)element).isTerminated()) {
return 0;
}
return 3;
}
return 0;
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#getChildren(java.lang.Object, int, int, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, org.eclipse.debug.internal.ui.viewers.model.provisional.IViewerUpdate)
*/
@Override
protected Object[] getChildren(Object parent, int index, int length, IPresentationContext context, IViewerUpdate monitor) throws CoreException {
if (IDebugUIConstants.ID_DEBUG_VIEW.equals(context.getId())) {
return getElements(getTracks((MidiLaunch) parent), index, length);
} else if (IDebugUIConstants.ID_VARIABLE_VIEW.equals(context.getId())) {
return getElements(getControls((MidiLaunch) parent), index, length);
}
return EMPTY;
}
/**
* Returns the controls for this sequencer.
*
* @param launch midi launch
* @return controls
*/
public SequencerControl[] getControls(MidiLaunch launch) {
return new SequencerControl[]{
new TempoControl(launch),
new ClockControl(launch),
new LengthControl(launch)
};
}
/**
* Returns all tracks in the sequence.
*
* @param launch MIDI launch
*@return tracks
*/
public Track[] getTracks(MidiLaunch launch) {
Sequencer sequencer = launch.getSequencer();
if (sequencer != null && sequencer.isOpen()) {
return sequencer.getSequence().getTracks();
}
return new Track[0];
}
/* (non-Javadoc)
* @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#supportsContextId(java.lang.String)
*/
@Override
protected boolean supportsContextId(String id) {
return IDebugUIConstants.ID_DEBUG_VIEW.equals(id)
|| IDebugUIConstants.ID_VARIABLE_VIEW.equals(id);
}
}
|
