1 files changed, 92 insertions, 0 deletions
diff --git a/org.eclipse.debug.examples.ui/src/org/eclipse/debug/examples/ui/midi/adapters/SequencerContentProvider.java b/org.eclipse.debug.examples.ui/src/org/eclipse/debug/examples/ui/midi/adapters/SequencerContentProvider.java
new file mode 100644
index 000000000..b4c04b6f5
--- /dev/null
+++ b/org.eclipse.debug.examples.ui/src/org/eclipse/debug/examples/ui/midi/adapters/SequencerContentProvider.java
@@ -0,0 +1,92 @@
+/*******************************************************************************
+ * 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.MidiLaunch;
+import org.eclipse.debug.examples.core.midi.launcher.SequencerControl;
+import org.eclipse.debug.examples.core.midi.launcher.TempoControl;
+import org.eclipse.debug.examples.core.midi.launcher.TimeControl;
+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)
+	 */
+	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())) {
+			return 2;
+		}
+		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)
+	 */
+	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 TimeControl(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) {
+			return sequencer.getSequence().getTracks();
+		}
+		return new Track[0];
+	}
+
+	/* (non-Javadoc)
+	 * @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#supportsContextId(java.lang.String)
+	 */
+	protected boolean supportsContextId(String id) {
+		return IDebugUIConstants.ID_DEBUG_VIEW.equals(id)
+			|| IDebugUIConstants.ID_VARIABLE_VIEW.equals(id);
+	}
+
+}