| /******************************************************************************* |
| * 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 org.eclipse.debug.examples.core.midi.launcher.SequencerControl; |
| import org.eclipse.jface.viewers.ICellModifier; |
| |
| /** |
| * A cell modifier for a sequencer control. Provides current |
| * values of controls and updates control values in the sequencer |
| * as they are changed in the UI. |
| * |
| * @since 1.0 |
| */ |
| public class ControlCellModifier implements ICellModifier { |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ICellModifier#canModify(java.lang.Object, java.lang.String) |
| */ |
| public boolean canModify(Object element, String property) { |
| if (SequencerColumnPresentation.COL_VALUE.equals(property)) { |
| if (element instanceof SequencerControl) { |
| return ((SequencerControl) element).isEditable(); |
| } |
| } |
| return false; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ICellModifier#getValue(java.lang.Object, java.lang.String) |
| */ |
| public Object getValue(Object element, String property) { |
| if (SequencerColumnPresentation.COL_VALUE.equals(property)) { |
| if (element instanceof SequencerControl) { |
| SequencerControl control = (SequencerControl) element; |
| return control.getValue(); |
| } |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.viewers.ICellModifier#modify(java.lang.Object, java.lang.String, java.lang.Object) |
| */ |
| public void modify(Object element, String property, Object value) { |
| Object oldValue = getValue(element, property); |
| if (!value.equals(oldValue)) { |
| if (SequencerColumnPresentation.COL_VALUE.equals(property)) { |
| if (element instanceof SequencerControl) { |
| if (value instanceof String) { |
| SequencerControl control = (SequencerControl) element; |
| control.setValue((String) value); |
| } |
| } |
| } |
| } |
| } |
| |
| } |