WiresExampleTreeNode1.java

/*
 * Copyright 2015 JBoss, by Red Hat, 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.uberfire.ext.wires.core.trees.client.shapes;

import com.ait.lienzo.client.core.shape.Circle;
import com.ait.lienzo.client.core.shape.Text;
import com.ait.lienzo.shared.core.types.ColorName;
import com.ait.lienzo.shared.core.types.TextAlign;
import com.ait.lienzo.shared.core.types.TextBaseLine;

/**
 * Example Node that can have all other types of node added as children
 */
public class WiresExampleTreeNode1 extends WiresBaseTreeNode {

    private static final int BOUNDARY_SIZE = 10;

    private final Circle circle;
    private final Circle bounding;
    private final Text plus = new Text("+",
                                       "normal",
                                       50);

    public WiresExampleTreeNode1(final Circle shape) {
        circle = shape;

        bounding = new Circle(circle.getRadius() + (BOUNDARY_SIZE / 2));
        bounding.setStrokeWidth(BOUNDARY_SIZE);
        bounding.setAlpha(0.1);

        plus.setTextAlign(TextAlign.CENTER);
        plus.setTextBaseLine(TextBaseLine.MIDDLE);
        plus.setFillColor(ColorName.CORNFLOWERBLUE);
        plus.setStrokeColor(ColorName.BLUE);

        add(circle);
    }

    @Override
    public void setSelected(final boolean isSelected) {
        if (isSelected) {
            add(bounding);
        } else {
            remove(bounding);
        }
    }

    @Override
    public void onCollapseStart() {
        add(plus);
        plus.setAlpha(0.0);
    }

    @Override
    public void onCollapseProgress(final double pct) {
        plus.setAlpha(pct);
    }

    @Override
    public void onExpandProgress(double pct) {
        plus.setAlpha(1.0 - pct);
    }

    @Override
    public void onExpandEnd() {
        remove(plus);
    }

    @Override
    public double getWidth() {
        return circle.getRadius() * 2;
    }

    @Override
    public double getHeight() {
        return circle.getRadius() * 2;
    }
}