| /******************************************************************************* |
| * Copyright (c) 2004, 2007 Mylyn project committers 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 |
| *******************************************************************************/ |
| |
| package org.eclipse.mylyn.internal.context.ui; |
| |
| import java.util.ConcurrentModificationException; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.core.runtime.Status; |
| import org.eclipse.jface.viewers.IDecoration; |
| import org.eclipse.jface.viewers.ILabelProviderListener; |
| import org.eclipse.jface.viewers.ILightweightLabelDecorator; |
| import org.eclipse.mylyn.commons.core.StatusHandler; |
| import org.eclipse.mylyn.context.core.AbstractContextStructureBridge; |
| import org.eclipse.mylyn.context.core.ContextCore; |
| import org.eclipse.mylyn.context.core.IInteractionElement; |
| import org.eclipse.mylyn.context.ui.ContextUi; |
| import org.eclipse.mylyn.internal.context.core.ContextCorePlugin; |
| import org.eclipse.mylyn.internal.context.core.InteractionContextRelation; |
| import org.eclipse.mylyn.internal.provisional.commons.ui.CommonFonts; |
| import org.eclipse.mylyn.tasks.core.ITask; |
| |
| /** |
| * @author Mik Kersten |
| */ |
| public class InterestDecoratorLightweight implements ILightweightLabelDecorator { |
| |
| public InterestDecoratorLightweight() { |
| super(); |
| } |
| |
| public void decorate(Object element, IDecoration decoration) { |
| if (ContextCore.getContextManager() != null && !ContextCore.getContextManager().isContextActive()) { |
| return; |
| } |
| |
| AbstractContextStructureBridge bridge = null; |
| try { |
| if (ContextCorePlugin.getDefault() == null) { |
| return; |
| } |
| bridge = ContextCore.getStructureBridge(element); |
| } catch (ConcurrentModificationException cme) { |
| // ignored, because we can add structure bridges during decoration |
| } |
| try { |
| // NOTE: awkward coupling and special rule to deal with tasks, see bug 212639 |
| if (!(element instanceof ITask)) { |
| IInteractionElement node = null; |
| if (element instanceof InteractionContextRelation) { |
| decoration.setForegroundColor(ColorMap.RELATIONSHIP); |
| } else if (element instanceof IInteractionElement) { |
| node = (IInteractionElement) element; |
| } else { |
| if (bridge != null && bridge.getContentType() != null) { |
| node = ContextCore.getContextManager().getElement(bridge.getHandleIdentifier(element)); |
| } |
| } |
| if (node != null) { |
| decoration.setForegroundColor(ContextUi.getForeground(node)); |
| if (bridge != null && bridge.canBeLandmark(node.getHandleIdentifier()) |
| && node.getInterest().isLandmark() && !node.getInterest().isPropagated() |
| && !node.getInterest().isPredicted()) { |
| decoration.setFont(CommonFonts.BOLD); |
| } |
| } |
| } |
| } catch (Exception e) { |
| StatusHandler.log(new Status(IStatus.ERROR, ContextUiPlugin.ID_PLUGIN, "Decoration failed", e)); |
| } |
| } |
| |
| public void addListener(ILabelProviderListener listener) { |
| // don't care about listeners |
| } |
| |
| public void dispose() { |
| // don't care when we are disposed |
| } |
| |
| public boolean isLabelProperty(Object element, String property) { |
| return false; |
| } |
| |
| public void removeListener(ILabelProviderListener listener) { |
| // don't care about listeners |
| } |
| |
| } |