/*
* Copyright 2005 JBoss Inc
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.drools.eclipse.flow.ruleflow.editor.editpart;
import org.drools.eclipse.DroolsEclipsePlugin;
import org.drools.eclipse.flow.common.editor.core.ModelEvent;
import org.drools.eclipse.flow.common.editor.editpart.ElementEditPart;
import org.drools.eclipse.flow.common.editor.editpart.figure.AbstractElementFigure;
import org.drools.eclipse.flow.ruleflow.core.JoinWrapper;
import org.drools.eclipse.flow.ruleflow.skin.SkinManager;
import org.drools.eclipse.flow.ruleflow.skin.SkinProvider;
import org.drools.eclipse.preferences.IDroolsConstants;
import org.eclipse.draw2d.ConnectionAnchor;
import org.eclipse.draw2d.Ellipse;
import org.eclipse.draw2d.EllipseAnchor;
import org.eclipse.draw2d.IFigure;
import org.eclipse.draw2d.geometry.Rectangle;
import org.eclipse.gef.ConnectionEditPart;
import org.eclipse.gef.Request;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.widgets.Display;
/**
* EditPart for a join node.
*/
public class JoinEditPart extends ElementEditPart {
private String SKIN =
DroolsEclipsePlugin.getDefault().getPreferenceStore().getString(IDroolsConstants.SKIN);
private static final Color color = new Color(Display.getCurrent(), 70, 130, 180);
protected IFigure createFigure() {
SkinProvider skinProvider = SkinManager.getInstance().getSkinProvider(SKIN);
IFigure result = skinProvider.createJoinFigure();
Rectangle constraint = getElementWrapper().getConstraint();
if (constraint.width == -1) {
constraint.width = result.getSize().width;
}
if (constraint.height == -1) {
constraint.height = result.getSize().height;
}
getElementWrapper().setConstraint(constraint);
return result;
}
public void modelChanged(ModelEvent event) {
if (event.getChange() == JoinWrapper.CHANGE_TYPE) {
refreshVisuals();
} else {
super.modelChanged(event);
}
}
protected void refreshVisuals() {
super.refreshVisuals();
int type = ((JoinWrapper) getModel()).getJoin().getType();
((JoinFigureInterface) getFigure()).setType(type);
}
public ConnectionAnchor getSourceConnectionAnchor(ConnectionEditPart connection) {
return new EllipseAnchor(getFigure());
}
public ConnectionAnchor getTargetConnectionAnchor(ConnectionEditPart connection) {
return new EllipseAnchor(getFigure());
}
public ConnectionAnchor getSourceConnectionAnchor(Request request) {
return new EllipseAnchor(getFigure());
}
public ConnectionAnchor getTargetConnectionAnchor(Request request) {
return new EllipseAnchor(getFigure());
}
public static interface JoinFigureInterface extends IFigure {
void setType(int type);
}
public static class JoinFigure extends AbstractElementFigure implements JoinFigureInterface {
private Ellipse ellipse;
protected void customizeFigure() {
ellipse = new Ellipse();
add(ellipse, 0);
ellipse.setBackgroundColor(color);
ellipse.setBounds(getBounds());
}
public void setBounds(Rectangle rectangle) {
super.setBounds(rectangle);
ellipse.setBounds(rectangle);
}
public void setSelected(boolean b) {
super.setSelected(b);
ellipse.setLineWidth(b ? 3 : 1);
repaint();
}
public void setType(int type) {
// Do nothing
}
}
}