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/*******************************************************************************
* Copyright (c) 2012 Original authors 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:
* Original authors and others - initial API and implementation
******************************************************************************/
package org.eclipse.nebula.widgets.nattable.persistence;
import static org.eclipse.nebula.widgets.nattable.persistence.IPersistable.DOT;
import java.util.Properties;
import org.eclipse.jface.resource.DataFormatException;
import org.eclipse.jface.resource.StringConverter;
import org.eclipse.nebula.widgets.nattable.util.GUIHelper;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Display;
public class ColorPersistor {
public static final String STYLE_PERSISTENCE_PREFIX = "color"; //$NON-NLS-1$
public static final Color DEFAULT_COLOR = Display.getDefault().getSystemColor(SWT.COLOR_WHITE);
public static void saveColor(String prefix, Properties properties, Color color) {
prefix = prefix + DOT + STYLE_PERSISTENCE_PREFIX;
if (color == null) {
return;
}
properties.setProperty(prefix, asString(color));
}
public static Color loadColor(String prefix, Properties properties) {
prefix = prefix + DOT + STYLE_PERSISTENCE_PREFIX;
String colorAsString = properties.getProperty(prefix);
if (colorAsString == null) {
return DEFAULT_COLOR;
} else {
return asColor(colorAsString);
}
}
/**
* Create a String representation of the SWT Color
*/
public static String asString(Color color) {
return StringConverter.asString(color.getRGB());
}
/**
* Create a Color instance using the String created by {@link ColorPersistor#asColor(String)}
*/
public static Color asColor(String colorAsString) {
try {
return GUIHelper.getColor(StringConverter.asRGB(colorAsString));
} catch (DataFormatException e) {
return DEFAULT_COLOR;
}
}
}
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