/*******************************************************************************
* Copyright (c) 2014 Bruno Medeiros and other Contributors.
* 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:
* Bruno Medeiros - initial API and implementation
*******************************************************************************/
package melnorme.util.swt.jface.text;
import static melnorme.utilbox.core.Assert.AssertNamespace.assertNotNull;
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;
public class ColorManager implements ISharedTextColors {
private static final ColorManager defaultInstance = new ColorManager();
public static ColorManager getDefault() {
return assertNotNull(defaultInstance);
}
protected final Map<RGB, Color> colors = new HashMap<>(16);
public ColorManager() {
// Note: no SWT code in constructor
}
@Override
public Color getColor(RGB rgb) {
Color color = colors.get(rgb);
if(color == null) {
color = new Color(Display.getCurrent(), rgb);
colors.put(rgb, color);
}
return color;
}
@Override
public void dispose() {
for (Color color : colors.values()) {
color.dispose();
}
}
}