/*
 * Copyright 2010 Red Hat, Inc. and/or its affiliates.
 *
 * 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.editpart.ElementContainerEditPart;
import org.drools.eclipse.flow.common.editor.editpart.figure.ElementContainerFigure;
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.IFigure;
import org.eclipse.draw2d.LineBorder;
import org.eclipse.draw2d.geometry.Rectangle;

public class CompositeNodeEditPart extends ElementContainerEditPart {

    private String SKIN =
        DroolsEclipsePlugin.getDefault().getPreferenceStore().getString(IDroolsConstants.SKIN);

    protected IFigure createFigure() {
        SkinProvider skinProvider = SkinManager.getInstance().getSkinProvider(SKIN);
        IFigure result = skinProvider.createCompositeNodeFigure();
        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 ConnectionAnchor getSourceConnectionAnchor(Request request) {
//        Point p = ((DropRequest) request).getLocation();
//        return ((CompositeNodeFigure) getFigure()).getOutgoingConnectionAnchorAt(p);
//    }
    
    public static class CompositeNodeFigure extends ElementContainerFigure {

//        private List<ConnectionAnchor> outgoingConnectionAnchors = new ArrayList<ConnectionAnchor>();

        public CompositeNodeFigure() {
            setBorder(new LineBorder(1));
        }
        
        public void setSelected(boolean b) {
            super.setSelected(b);
            ((LineBorder) getBorder()).setWidth(b ? 3 : 1);
        }

//        public ConnectionAnchor getOutgoingConnectionAnchorAt(Point p) {
//            ConnectionAnchor closest = null;
//            long min = Long.MAX_VALUE;
//            for (ConnectionAnchor c: outgoingConnectionAnchors) {
//                Point p2 = c.getLocation(null);
//                long d = p.getDistance2(p2);
//                if (d < min) {
//                    min = d;
//                    closest = c;
//                }
//            }
//            return closest;
//        }
        
//        public void layoutConnectionAnchors() {
//            FixedConnectionAnchor c = (FixedConnectionAnchor) outgoingConnectionAnchors.get(0);
//            c.setOffsetV(getBounds().height);
//            c.setOffsetH(0);
//            c = (FixedConnectionAnchor) outgoingConnectionAnchors.get(1);
//            c.setOffsetV(getBounds().height);
//            c.setOffsetH(getBounds().width);
//        }
        
//        public void validate() {
//            if(isValid()) return;
//            layoutConnectionAnchors();
//            super.validate();
//        }
        
    }
        
}
