RenderingPanel.java

/*******************************************************************************
   Copyright 2013 Johannes Mitlmeier

   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 de.fub.agg2graph.ui.gui;

import de.fub.agg2graph.ui.gui.jmv.Layer;
import de.fub.agg2graph.ui.gui.jmv.TestUI;
import java.awt.Color;
import java.awt.GradientPaint;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Comparator;
import java.util.List;
import javax.swing.JPanel;

public class RenderingPanel extends JPanel implements IRenderingPanel {
	private static final long serialVersionUID = 1199223710435106007L;
	protected TestUI parentUi;
	protected List<Layer> layers = new ArrayList<Layer>();

	public RenderingPanel() {
	}

	public RenderingPanel(TestUI parentUi) {
		this();
		this.parentUi = parentUi;
	}

	@Override
	public void paintComponent(Graphics g) {
		if (getUi() == null) {
			return;
		}

		// set tooltip
		StringBuilder sb = new StringBuilder();
		for (Layer layer : layers) {
			sb.append(layer.getDescription()).append(", ");
		}
		sb.replace(sb.length() - 2, sb.length(), "");
		setToolTipText(sb.toString());

		// layer the layers ;-)
		Graphics2D g2 = (Graphics2D) g;
		double scaling = (double) getWidth()
				/ (double) getUi().getLayerManager().getSize().width;
		int width = getUi().getLayerManager().getSize().width;
		int height = getUi().getLayerManager().getSize().height;
		g2.scale(scaling, scaling);
		GradientPaint pat = new GradientPaint(10, 0, new Color(255, 255, 255),
				10, height, new Color(210, 210, 210), true);
		g2.setPaint(pat);
		g2.fillRect(0, 0, width, height);

		for (Layer layer : layers) {
			layer.paintToComponent(this, g2);
		}
	}

	@Override
	public List<Layer> getLayers() {
		return layers;
	}

	@Override
	public TestUI getUi() {
		return parentUi;
	}

	@Override
	public void setUi(TestUI ui) {
		this.parentUi = ui;
	}

	@Override
	public void addLayer(Layer layer) {
		if (!layers.contains(layer)) {
			layers.add(layer);
			Collections.sort(layers, new Comparator<Layer>() {

				@Override
				public int compare(Layer o1, Layer o2) {
					if (o1 == null || o1.getOptions() == null) {
						return 1;
					}
					if (o2 == null || o2.getOptions() == null) {
						return -1;
					}
					return o1.getOptions().getzIndex() - o2.getOptions().getzIndex();
				}
			});
		}
	}

	@Override
	public String toString() {
		StringBuilder sb = new StringBuilder();
		for (Layer layer : layers) {
			sb.append(layer.toString()).append(", ");
		}

		return String.format("RenderingPanel: [%s]", sb.toString());
	}
}