CommentWidget.java

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2016 Neil C Smith.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details.
 *
 * You should have received a copy of the GNU General Public License version 2
 * along with this work; if not, see http://www.gnu.org/licenses/
 *
 *
 * Linking this work statically or dynamically with other modules is making a
 * combined work based on this work. Thus, the terms and conditions of the GNU
 * General Public License cover the whole combination.
 *
 * As a special exception, the copyright holders of this work give you permission
 * to link this work with independent modules to produce an executable,
 * regardless of the license terms of these independent modules, and to copy and
 * distribute the resulting executable under terms of your choice, provided that
 * you also meet, for each linked independent module, the terms and conditions of
 * the license of that module. An independent module is a module which is not
 * derived from or based on this work. If you modify this work, you may extend
 * this exception to your version of the work, but you are not obligated to do so.
 * If you do not wish to do so, delete this exception statement from your version.
 *
 * Please visit http://neilcsmith.net if you need additional information or
 * have any questions.
 *
 *
 * This class is derived from code in NetBeans Visual Library.
 * Original copyright notice follows.
 */
package net.neilcsmith.praxis.live.graph;

import java.awt.Color;
import java.awt.Dimension;
import java.util.Objects;
import org.netbeans.api.visual.layout.LayoutFactory;
import org.netbeans.api.visual.widget.LabelWidget;
import org.netbeans.api.visual.widget.Widget;

class CommentWidget extends Widget {

    private final PraxisGraphScene<?> scene;
    
    private String text;

    public CommentWidget(PraxisGraphScene<?> scene) {

        super(scene);
        this.scene = scene;
        
        setLayout(LayoutFactory.createVerticalFlowLayout());
        setMinimumSize(new Dimension(100, 10));
        setText("");
        
    }

    public final void setText(String text) {
        this.text = Objects.requireNonNull(text);
        String[] lines = text.split("\n");
        removeChildren();
        for (String line : lines) {
            LabelWidget lw = new LabelWidget(getScene(), line);
            lw.setOpaque(false);
            lw.setForeground(Color.BLACK); // how to set this?
            addChild(lw);
        }
    }

    public final String getText() {
        return text;
    }

    @Override
    protected void paintChildren() {
        if (scene.isBelowLODThreshold()) {
            return;
        }
        super.paintChildren();
    }

}