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/*******************************************************************************
* Copyright (c) 2011 Wind River Systems, Inc. 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tm.te.ui.decorators.images;
import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.resource.ImageRegistry;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Point;
import org.eclipse.tm.te.core.model.interfaces.IConnectable;
import org.eclipse.tm.te.runtime.model.interfaces.IModelNode;
import org.eclipse.tm.te.ui.interfaces.ImageConsts;
import org.eclipse.tm.te.ui.jface.images.AbstractImageDescriptor;
/**
* Connectable node image descriptor implementation.
*/
public class ConnectableImageDescriptor extends AbstractImageDescriptor {
// the base image to decorate with overlays
private Image baseImage;
// the image size
private Point imageSize;
// Flags representing the object states to decorate
private int connectState;
private int connectSubState;
private boolean pending;
/**
* Constructor.
*
* @param registry The image registry. Must not be <code>null</code>.
* @param baseImage The base image. Must not be <code>null</code>.
* @param node The connectable node. Must not be <code>null</code>.
*/
public ConnectableImageDescriptor(final ImageRegistry registry, final Image baseImage, final IConnectable node) {
super(registry);
Assert.isNotNull(baseImage);
this.baseImage = baseImage;
imageSize = new Point(baseImage.getImageData().width, baseImage.getImageData().height);
// invoke initialize
invokeInitialize(node);
// build up the key for the image registry
defineKey(baseImage.hashCode());
}
/**
* Invoke the initialize method.
* <p>
* Called from the constructor to initialize the image descriptor. Sub classes
* can overwrite this method to implement necessary thread-safety.
*
* @param node The connectable node. Must not be <code>null</code>.
*/
protected void invokeInitialize(IConnectable node) {
Assert.isNotNull(node);
initialize(node);
}
/**
* Initialize the image descriptor from the connectable node.
*
* @param node The target node. Must not be <code>null</code>.
*/
protected void initialize(IConnectable node) {
Assert.isNotNull(node);
connectState = node.getConnectState();
connectSubState = node.getConnectSubState();
pending = node instanceof IModelNode ? ((IModelNode)node).isPending() : false;
}
protected void defineKey(int hashCode) {
String key = "CNID:" + //$NON-NLS-1$
hashCode + ":" + //$NON-NLS-1$
connectState + ":" + //$NON-NLS-1$
connectSubState + ":" + //$NON-NLS-1$
pending;
setDecriptorKey(key);
}
/* (non-Javadoc)
* @see org.eclipse.jface.resource.CompositeImageDescriptor#drawCompositeImage(int, int)
*/
@Override
protected void drawCompositeImage(int width, int height) {
drawCentered(baseImage, width, height);
if (pending || (connectState == IConnectable.STATE_UNREACHABLE && (connectSubState == IConnectable.SUB_STATE_REBOOT_MANUAL))) {
drawTopLeft(ImageConsts.BUSY_OVR);
}
if (connectState == IConnectable.STATE_CONNECTING || connectState == IConnectable.STATE_DISCONNECTING) {
drawBottomRight(ImageConsts.GOLD_OVR);
} else if (connectState == IConnectable.STATE_UNREACHABLE) {
drawBottomRight(ImageConsts.RED_OVR);
} else if (connectState == IConnectable.STATE_CONNECTED) {
drawBottomRight(ImageConsts.GREEN_OVR);
} else if (connectState == IConnectable.STATE_UNCONNECTED) {
drawBottomRight(ImageConsts.GREY_OVR);
}
}
/* (non-Javadoc)
* @see org.eclipse.jface.resource.CompositeImageDescriptor#getSize()
*/
@Override
protected Point getSize() {
return imageSize;
}
/* (non-Javadoc)
* @see org.eclipse.tm.te.ui.jface.images.AbstractImageDescriptor#getBaseImage()
*/
@Override
protected Image getBaseImage() {
return baseImage;
}
}
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