001/*
002 * Copyright 2006 - 2013
003 *     Stefan Balev     <stefan.balev@graphstream-project.org>
004 *     Julien Baudry    <julien.baudry@graphstream-project.org>
005 *     Antoine Dutot    <antoine.dutot@graphstream-project.org>
006 *     Yoann Pigné      <yoann.pigne@graphstream-project.org>
007 *     Guilhelm Savin   <guilhelm.savin@graphstream-project.org>
008 * 
009 * This file is part of GraphStream <http://graphstream-project.org>.
010 * 
011 * GraphStream is a library whose purpose is to handle static or dynamic
012 * graph, create them from scratch, file or any source and display them.
013 * 
014 * This program is free software distributed under the terms of two licenses, the
015 * CeCILL-C license that fits European law, and the GNU Lesser General Public
016 * License. You can  use, modify and/ or redistribute the software under the terms
017 * of the CeCILL-C license as circulated by CEA, CNRS and INRIA at the following
018 * URL <http://www.cecill.info> or under the terms of the GNU LGPL as published by
019 * the Free Software Foundation, either version 3 of the License, or (at your
020 * option) any later version.
021 * 
022 * This program is distributed in the hope that it will be useful, but WITHOUT ANY
023 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
024 * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
025 * 
026 * You should have received a copy of the GNU Lesser General Public License
027 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
028 * 
029 * The fact that you are presently reading this means that you have had
030 * knowledge of the CeCILL-C and LGPL licenses and that you accept their terms.
031 */
032package org.graphstream.ui.swingViewer.basicRenderer;
033
034import java.awt.Color;
035import java.awt.Graphics2D;
036import java.awt.geom.Ellipse2D;
037import java.awt.geom.Point2D;
038
039import org.graphstream.ui.graphicGraph.GraphicElement;
040import org.graphstream.ui.graphicGraph.GraphicSprite;
041import org.graphstream.ui.graphicGraph.StyleGroup;
042import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants;
043import org.graphstream.ui.graphicGraph.stylesheet.Values;
044import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants.FillMode;
045import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants.SizeMode;
046import org.graphstream.ui.swingViewer.util.Camera;
047import org.graphstream.ui.swingViewer.util.DefaultCamera;
048import org.graphstream.ui.swingViewer.util.GraphMetrics;
049
050public class SpriteRenderer extends ElementRenderer {
051        protected GraphMetrics metrics;
052
053        protected Values size;
054
055        protected Ellipse2D shape;
056
057        protected double width, height, w2, h2;
058
059        @Override
060        protected void setupRenderingPass(StyleGroup group, Graphics2D g,
061                        Camera camera) {
062                metrics = camera.getMetrics();
063                configureText(group, camera);
064        }
065
066        @Override
067        protected void pushDynStyle(StyleGroup group, Graphics2D g, Camera camera,
068                        GraphicElement element) {
069                Color color = group.getFillColor(0);
070
071                if (element != null && group.getFillMode() == FillMode.DYN_PLAIN)
072                        color = interpolateColor(group, element);
073
074                g.setColor(color);
075
076                if (group.getSizeMode() == SizeMode.DYN_SIZE) {
077                        width = metrics.lengthToGu(StyleConstants.convertValue(element
078                                        .getAttribute("ui.size")));
079                        height = width;
080                        w2 = width / 2;
081                        h2 = height / 2;
082                }
083        }
084
085        @Override
086        protected void pushStyle(StyleGroup group, Graphics2D g, Camera camera) {
087                size = group.getSize();
088                shape = new Ellipse2D.Double();
089                width = metrics.lengthToGu(size, 0);
090                height = size.size() > 1 ? metrics.lengthToGu(size, 1) : width;
091                w2 = width / 2;
092                h2 = height / 2;
093
094                Color color = group.getFillColor(0);
095
096                g.setColor(color);
097        }
098
099        @Override
100        protected void elementInvisible(StyleGroup group, Graphics2D g,
101                        Camera camera, GraphicElement element) {
102        }
103
104        @Override
105        protected void renderElement(StyleGroup group, Graphics2D g, Camera camera,
106                        GraphicElement element) {
107                GraphicSprite sprite = (GraphicSprite) element;
108                Point2D.Double pos = ((DefaultCamera) camera).getSpritePosition(sprite,
109                                new Point2D.Double(), StyleConstants.Units.GU);
110
111                shape.setFrame(pos.x - w2, pos.y - h2, width, height);
112                g.fill(shape);
113                renderText(group, g, camera, element);
114        }
115}