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/*******************************************************************************
* Copyright (c) 2011 Google, Inc.
* 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:
* Google, Inc. - initial API and implementation
*******************************************************************************/
package org.eclipse.wb.internal.core.model.property.editor;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.wb.internal.core.DesignerPlugin;
import org.eclipse.wb.internal.core.model.property.Property;
import org.eclipse.wb.internal.core.model.property.table.PropertyTable;
import org.eclipse.wb.internal.core.utils.ui.DrawUtils;
/**
* The {@link PropertyEditor} for <code>boolean</code>.
*
* @author scheglov_ke
* @coverage core.model.property.editor
*/
public final class BooleanPropertyEditor extends PropertyEditor {
private static final Image m_trueImage = DesignerPlugin.getImage("properties/true.png");
private static final Image m_falseImage = DesignerPlugin.getImage("properties/false.png");
private static final Image m_unknownImage =
DesignerPlugin.getImage("properties/BooleanUnknown.png");
////////////////////////////////////////////////////////////////////////////
//
// Instance
//
////////////////////////////////////////////////////////////////////////////
public static final PropertyEditor INSTANCE = new BooleanPropertyEditor();
private BooleanPropertyEditor() {
}
////////////////////////////////////////////////////////////////////////////
//
// Presentation
//
////////////////////////////////////////////////////////////////////////////
@Override
public void paint(Property property, GC gc, int x, int y, int width, int height) throws Exception {
Object value = property.getValue();
if (value instanceof Boolean) {
boolean booleanValue = ((Boolean) value).booleanValue();
Image image = booleanValue ? m_trueImage : m_falseImage;
String text = Boolean.toString(booleanValue);
paint(gc, x, y, width, height, image, text);
} else {
paint(gc, x, y, width, height, m_unknownImage, "unknown");
}
}
/**
* Paints {@link Image} and text.
*/
private void paint(GC gc, int x, int y, int width, int height, Image image, String text) {
// draw image
{
DrawUtils.drawImageCV(gc, image, x, y, height);
// prepare new position/width
int imageWidth = image.getBounds().width + 2;
x += imageWidth;
width -= imageWidth;
}
// draw text
DrawUtils.drawStringCV(gc, text, x, y, width, height);
}
////////////////////////////////////////////////////////////////////////////
//
// Editing
//
////////////////////////////////////////////////////////////////////////////
@Override
public boolean activate(PropertyTable propertyTable, Property property, Point location)
throws Exception {
// check that user clicked on image
if (location == null || location.x < m_trueImage.getBounds().width + 2) {
invertValue(property);
}
// don't activate
return false;
}
@Override
public void doubleClick(Property property, Point location) throws Exception {
invertValue(property);
}
/**
* Inverts the value of given boolean {@link Property}.
*/
private void invertValue(Property property) throws Exception {
// prepare current boolean value
boolean booleanValue = false;
{
Object value = property.getValue();
if (value instanceof Boolean) {
booleanValue = ((Boolean) value).booleanValue();
}
}
// set inverted value
property.setValue(!booleanValue);
}
}
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