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; 037 038import org.graphstream.ui.graphicGraph.GraphicElement; 039import org.graphstream.ui.graphicGraph.GraphicNode; 040import org.graphstream.ui.graphicGraph.StyleGroup; 041import org.graphstream.ui.graphicGraph.stylesheet.Values; 042import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants; 043import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants.FillMode; 044import org.graphstream.ui.graphicGraph.stylesheet.StyleConstants.SizeMode; 045import org.graphstream.ui.swingViewer.util.Camera; 046import org.graphstream.ui.swingViewer.util.GraphMetrics; 047 048public class NodeRenderer extends ElementRenderer { 049 protected GraphMetrics metrics; 050 051 protected Values size; 052 053 protected Ellipse2D shape; 054 055 protected double width, height, w2, h2; 056 057 @Override 058 protected void setupRenderingPass(StyleGroup group, Graphics2D g, 059 Camera camera) { 060 metrics = camera.getMetrics(); 061 configureText(group, camera); 062 } 063 064 @Override 065 protected void pushDynStyle(StyleGroup group, Graphics2D g, Camera camera, 066 GraphicElement element) { 067 Color color = group.getFillColor(0); 068 069 if (element != null && group.getFillMode() == FillMode.DYN_PLAIN) 070 color = interpolateColor(group, element); 071 072 g.setColor(color); 073 074 if (group.getSizeMode() == SizeMode.DYN_SIZE) { 075 Object s = element.getAttribute("ui.size"); 076 077 if (s != null) { 078 width = metrics.lengthToGu(StyleConstants.convertValue(s)); 079 height = width; 080 w2 = width / 2; 081 h2 = height / 2; 082 } else { 083 size = group.getSize(); 084 width = metrics.lengthToGu(size, 0); 085 height = size.size() > 1 ? metrics.lengthToGu(size, 1) : width; 086 w2 = width / 2; 087 h2 = height / 2; 088 } 089 } 090 } 091 092 @Override 093 protected void pushStyle(StyleGroup group, Graphics2D g, Camera camera) { 094 size = group.getSize(); 095 shape = new Ellipse2D.Double(); 096 width = metrics.lengthToGu(size, 0); 097 height = size.size() > 1 ? metrics.lengthToGu(size, 1) : width; 098 w2 = width / 2; 099 h2 = height / 2; 100 101 Color color = group.getFillColor(0); 102 103 g.setColor(color); 104 } 105 106 @Override 107 protected void elementInvisible(StyleGroup group, Graphics2D g, 108 Camera camera, GraphicElement element) { 109 } 110 111 @Override 112 protected void renderElement(StyleGroup group, Graphics2D g, Camera camera, 113 GraphicElement element) { 114 GraphicNode node = (GraphicNode) element; 115 116 shape.setFrame(node.x - w2, node.y - h2, width, height); 117 g.fill(shape); 118 renderText(group, g, camera, element); 119 } 120}