| /******************************************************************************* |
| * Copyright (c) 2008, 2009 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 |
| * Patrick Chuong (Texas Instruments) - Checkbox support for Flexible Hierachy view (Bug 286310) |
| *******************************************************************************/ |
| package org.eclipse.debug.examples.ui.midi.adapters; |
| |
| import javax.sound.midi.MidiEvent; |
| import javax.sound.midi.MidiMessage; |
| import javax.sound.midi.ShortMessage; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.debug.internal.ui.model.elements.ElementLabelProvider; |
| import org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext; |
| import org.eclipse.jface.viewers.TreePath; |
| |
| /** |
| * Provides labels for MIDI tracks. |
| * |
| * @since 1.0 |
| */ |
| public class MidiEventLabelProvider extends ElementLabelProvider { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.model.elements.ElementLabelProvider#getLabel(org.eclipse.jface.viewers.TreePath, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext, java.lang.String) |
| */ |
| protected String getLabel(TreePath elementPath, IPresentationContext presentationContext, String columnId) throws CoreException { |
| MidiEvent event = (MidiEvent) elementPath.getLastSegment(); |
| MidiMessage message = event.getMessage(); |
| if (TrackColumnPresentation.COL_TICK.equals(columnId)) { |
| return Long.toString(event.getTick()); |
| } else if (TrackColumnPresentation.COL_BYTES.equals(columnId)) { |
| byte[] bytes = message.getMessage(); |
| StringBuffer buffer = new StringBuffer(); |
| for (int i = 0; i < message.getLength(); i++) { |
| buffer.append(' '); |
| appendByte(buffer, bytes[i]); |
| } |
| return buffer.toString(); |
| } else if (TrackColumnPresentation.COL_COMMAND.equals(columnId)) { |
| if (message instanceof ShortMessage) { |
| ShortMessage sm = (ShortMessage) message; |
| StringBuffer buf = new StringBuffer(); |
| appendByte(buf, (byte)sm.getCommand()); |
| return buf.toString(); |
| } |
| } else if (TrackColumnPresentation.COL_CHANNEL.equals(columnId)) { |
| if (message instanceof ShortMessage) { |
| return Integer.toString(((ShortMessage)message).getChannel()); |
| } |
| } |
| return ""; |
| } |
| |
| |
| /* |
| * (non-Javadoc) |
| * @see org.eclipse.debug.internal.ui.model.elements.ElementLabelProvider#getChecked(org.eclipse.jface.viewers.TreePath, org.eclipse.debug.internal.ui.viewers.model.provisional.IPresentationContext) |
| */ |
| public boolean getChecked(TreePath path, IPresentationContext presentationContext) throws CoreException { |
| Boolean result = (Boolean) MidiEventModelProxy.gChecked.get(path); |
| return result == null ? false : result.booleanValue(); |
| } |
| |
| /** |
| * Appends a byte to the buffer with 2 hex characters. |
| * |
| * @param buffer |
| * @param b |
| */ |
| private void appendByte(StringBuffer buffer, byte b) { |
| String hex = Integer.toHexString(b & 0xFF).toUpperCase(); |
| for (int i = hex.length(); i < 2; i++) { |
| buffer.append('0'); |
| } |
| buffer.append(hex); |
| } |
| |
| } |