/*******************************************************************************
* Copyright (c) 2000, 2010 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.gef.examples.logicdesigner.edit;
import org.eclipse.swt.graphics.Color;
import org.eclipse.draw2d.IFigure;
import org.eclipse.gef.EditPart;
import org.eclipse.gef.GraphicalEditPart;
import org.eclipse.gef.Request;
import org.eclipse.gef.RequestConstants;
import org.eclipse.gef.examples.logicdesigner.figures.LogicColorConstants;
/**
*/
public class ContainerHighlightEditPolicy extends
org.eclipse.gef.editpolicies.GraphicalEditPolicy {
private Color revertColor;
public void eraseTargetFeedback(Request request) {
if (revertColor != null) {
setContainerBackground(revertColor);
revertColor = null;
}
}
private Color getContainerBackground() {
return getContainerFigure().getBackgroundColor();
}
private IFigure getContainerFigure() {
return ((GraphicalEditPart) getHost()).getFigure();
}
public EditPart getTargetEditPart(Request request) {
return request.getType().equals(RequestConstants.REQ_SELECTION_HOVER) ? getHost()
: null;
}
private void setContainerBackground(Color c) {
getContainerFigure().setBackgroundColor(c);
}
protected void showHighlight() {
if (revertColor == null) {
revertColor = getContainerBackground();
setContainerBackground(LogicColorConstants.logicBackgroundBlue);
}
}
public void showTargetFeedback(Request request) {
if (request.getType().equals(RequestConstants.REQ_MOVE)
|| request.getType().equals(RequestConstants.REQ_ADD)
|| request.getType().equals(RequestConstants.REQ_CLONE)
|| request.getType().equals(
RequestConstants.REQ_CONNECTION_START)
|| request.getType()
.equals(RequestConstants.REQ_CONNECTION_END)
|| request.getType().equals(RequestConstants.REQ_CREATE))
showHighlight();
}
}