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/*******************************************************************************
* Copyright (c) 2000, 2004 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.ui.internal.editors.text;
import java.util.Iterator;
import org.eclipse.swt.widgets.Display;
import java.util.Map;
import java.util.HashMap;
import org.eclipse.swt.graphics.Color;
import org.eclipse.jface.text.source.ISharedTextColors;
import org.eclipse.swt.graphics.RGB;
/*
* @see org.eclipse.jface.text.source.ISharedTextColors
* @since 2.1
*/
class SharedTextColors implements ISharedTextColors {
/** The display table. */
private Map fDisplayTable;
/** Creates an returns a shared color manager. */
public SharedTextColors() {
super();
}
/*
* @see ISharedTextColors#getColor(RGB)
*/
public Color getColor(RGB rgb) {
if (rgb == null)
return null;
if (fDisplayTable == null)
fDisplayTable= new HashMap(2);
Display display= Display.getCurrent();
Map colorTable= (Map) fDisplayTable.get(display);
if (colorTable == null) {
colorTable= new HashMap(10);
fDisplayTable.put(display, colorTable);
}
Color color= (Color) colorTable.get(rgb);
if (color == null) {
color= new Color(display, rgb);
colorTable.put(rgb, color);
}
return color;
}
/*
* @see ISharedTextColors#dispose()
*/
public void dispose() {
if (fDisplayTable != null) {
Iterator j= fDisplayTable.values().iterator();
while (j.hasNext()) {
Iterator i= ((Map) j.next()).values().iterator();
while (i.hasNext())
((Color) i.next()).dispose();
}
}
}
}
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