| /******************************************************************************* |
| * 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) |
| */ |
| 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) |
| */ |
| 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) |
| */ |
| protected boolean supportsContextId(String id) { |
| return IDebugUIConstants.ID_DEBUG_VIEW.equals(id) |
| || IDebugUIConstants.ID_VARIABLE_VIEW.equals(id); |
| } |
| |
| } |