| /******************************************************************************* |
| * 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.MidiEvent; |
| import javax.sound.midi.Track; |
| |
| import org.eclipse.core.runtime.CoreException; |
| 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; |
| |
| /** |
| * Content provider for track in the variables view. Returns MIDI events |
| * in the track. |
| * |
| * @since 1.0 |
| */ |
| public class TrackContentProvider 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 { |
| Track track = (Track) element; |
| if (IDebugUIConstants.ID_VARIABLE_VIEW.equals(context.getId())) { |
| return track.size(); |
| } |
| 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_VARIABLE_VIEW.equals(context.getId())) { |
| Track track = (Track) parent; |
| MidiEvent[] events= new MidiEvent[length]; |
| for (int i = 0; i < length; i++) { |
| events[i] = track.get(i+index); |
| } |
| return events; |
| } |
| return EMPTY; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.model.elements.ElementContentProvider#supportsContextId(java.lang.String) |
| */ |
| protected boolean supportsContextId(String id) { |
| return IDebugUIConstants.ID_VARIABLE_VIEW.equals(id); |
| } |
| |
| } |