| /******************************************************************************* |
| * Copyright (c) 2012, 2013 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 null; |
| } 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; |
| } |
| } |
| } |