| /******************************************************************************* |
| * Copyright (c) 2000, 2018 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.ant.internal.ui; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.jface.text.source.ISharedTextColors; |
| import org.eclipse.swt.graphics.Color; |
| import org.eclipse.swt.graphics.RGB; |
| import org.eclipse.swt.widgets.Display; |
| import org.eclipse.ui.PlatformUI; |
| |
| /** |
| * Generic color manager. |
| */ |
| public class ColorManager implements ISharedTextColors { |
| |
| private static ColorManager fgColorManager; |
| |
| private ColorManager() { |
| } |
| |
| public static ColorManager getDefault() { |
| if (fgColorManager == null) { |
| fgColorManager = new ColorManager(); |
| } |
| return fgColorManager; |
| } |
| |
| protected Map<RGB, Color> fColorTable = new HashMap<>(10); |
| |
| @Override |
| public Color getColor(RGB rgb) { |
| Color color = fColorTable.get(rgb); |
| if (color == null) { |
| synchronized (fColorTable) { |
| color = fColorTable.get(rgb); |
| if (color == null) { |
| PlatformUI.getWorkbench().getDisplay().syncExec(() -> fColorTable.put(rgb, new Color(Display.getCurrent(), rgb))); |
| color = fColorTable.get(rgb); |
| } |
| } |
| } |
| return color; |
| } |
| |
| @Override |
| public void dispose() { |
| for (Color color : fColorTable.values()) { |
| color.dispose(); |
| } |
| } |
| } |