| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.jdt.internal.ui.viewsupport; |
| |
| import java.util.HashSet; |
| import java.util.Iterator; |
| import java.util.Set; |
| |
| import org.eclipse.swt.widgets.Display; |
| |
| import org.eclipse.jface.preference.JFacePreferences; |
| import org.eclipse.jface.resource.JFaceResources; |
| import org.eclipse.jface.util.IPropertyChangeListener; |
| import org.eclipse.jface.util.PropertyChangeEvent; |
| |
| import org.eclipse.ui.IWorkbenchPreferenceConstants; |
| import org.eclipse.ui.PlatformUI; |
| |
| |
| public class ColoredViewersManager implements IPropertyChangeListener { |
| |
| public static final String INHERITED_COLOR_NAME= "org.eclipse.jdt.ui.ColoredLabels.inherited"; //$NON-NLS-1$ |
| |
| public static final String HIGHLIGHT_BG_COLOR_NAME= "org.eclipse.jdt.ui.ColoredLabels.match_highlight"; //$NON-NLS-1$ |
| public static final String HIGHLIGHT_WRITE_BG_COLOR_NAME= "org.eclipse.jdt.ui.ColoredLabels.writeaccess_highlight"; //$NON-NLS-1$ |
| |
| private static ColoredViewersManager fgInstance= new ColoredViewersManager(); |
| |
| private Set<ColoringLabelProvider> fManagedLabelProviders; |
| |
| public ColoredViewersManager() { |
| fManagedLabelProviders= new HashSet<ColoringLabelProvider>(); |
| } |
| |
| public void installColoredLabels(ColoringLabelProvider labelProvider) { |
| if (fManagedLabelProviders.contains(labelProvider)) |
| return; |
| |
| if (fManagedLabelProviders.isEmpty()) { |
| // first lp installed |
| PlatformUI.getPreferenceStore().addPropertyChangeListener(this); |
| JFaceResources.getColorRegistry().addListener(this); |
| } |
| fManagedLabelProviders.add(labelProvider); |
| } |
| |
| public void uninstallColoredLabels(ColoringLabelProvider labelProvider) { |
| if (!fManagedLabelProviders.remove(labelProvider)) |
| return; // not installed |
| |
| if (fManagedLabelProviders.isEmpty()) { |
| PlatformUI.getPreferenceStore().removePropertyChangeListener(this); |
| JFaceResources.getColorRegistry().removeListener(this); |
| // last viewer uninstalled |
| } |
| } |
| |
| public void propertyChange(PropertyChangeEvent event) { |
| String property= event.getProperty(); |
| if (property.equals(JFacePreferences.QUALIFIER_COLOR) |
| || property.equals(JFacePreferences.COUNTER_COLOR) |
| || property.equals(JFacePreferences.DECORATIONS_COLOR) |
| || property.equals(HIGHLIGHT_BG_COLOR_NAME) |
| || property.equals(HIGHLIGHT_WRITE_BG_COLOR_NAME) |
| || property.equals(INHERITED_COLOR_NAME) |
| || property.equals(IWorkbenchPreferenceConstants.USE_COLORED_LABELS) |
| ) { |
| Display.getDefault().asyncExec(new Runnable() { |
| public void run() { |
| updateAllViewers(); |
| } |
| }); |
| } |
| } |
| |
| protected final void updateAllViewers() { |
| for (Iterator<ColoringLabelProvider> iterator= fManagedLabelProviders.iterator(); iterator.hasNext();) { |
| ColoringLabelProvider lp= iterator.next(); |
| lp.update(); |
| } |
| } |
| |
| public static boolean showColoredLabels() { |
| return PlatformUI.getPreferenceStore().getBoolean(IWorkbenchPreferenceConstants.USE_COLORED_LABELS); |
| } |
| |
| public static void install(ColoringLabelProvider labelProvider) { |
| fgInstance.installColoredLabels(labelProvider); |
| } |
| |
| public static void uninstall(ColoringLabelProvider labelProvider) { |
| fgInstance.uninstallColoredLabels(labelProvider); |
| } |
| |
| } |