001/* 002 * SVG Salamander 003 * Copyright (c) 2004, Mark McKay 004 * All rights reserved. 005 * 006 * Redistribution and use in source and binary forms, with or 007 * without modification, are permitted provided that the following 008 * conditions are met: 009 * 010 * - Redistributions of source code must retain the above 011 * copyright notice, this list of conditions and the following 012 * disclaimer. 013 * - Redistributions in binary form must reproduce the above 014 * copyright notice, this list of conditions and the following 015 * disclaimer in the documentation and/or other materials 016 * provided with the distribution. 017 * 018 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 019 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 020 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 021 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 022 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 023 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 025 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 026 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 027 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 028 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 029 * OF THE POSSIBILITY OF SUCH DAMAGE. 030 * 031 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other 032 * projects can be found at http://www.kitfox.com 033 * 034 * Created on January 26, 2004, 5:25 PM 035 */ 036package com.kitfox.svg; 037 038import com.kitfox.svg.xml.StyleAttribute; 039import java.awt.Graphics2D; 040import java.awt.Shape; 041import java.awt.geom.Ellipse2D; 042import java.awt.geom.Rectangle2D; 043 044/** 045 * @author Mark McKay 046 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 047 */ 048public class Ellipse extends ShapeElement 049{ 050 051 public static final String TAG_NAME = "ellipse"; 052 float cx = 0.0f; 053 float cy = 0.0f; 054 float rx = 0.0f; 055 float ry = 0.0f; 056 Ellipse2D.Float ellipse = new Ellipse2D.Float(); 057 058 /** 059 * Creates a new instance of Rect 060 */ 061 public Ellipse() 062 { 063 } 064 065 @Override 066 public String getTagName() 067 { 068 return TAG_NAME; 069 } 070 071 @Override 072 protected void build() throws SVGException 073 { 074 super.build(); 075 076 StyleAttribute sty = new StyleAttribute(); 077 078 if (getPres(sty.setName("cx"))) 079 { 080 cx = sty.getFloatValueWithUnits(); 081 } 082 083 if (getPres(sty.setName("cy"))) 084 { 085 cy = sty.getFloatValueWithUnits(); 086 } 087 088 if (getPres(sty.setName("rx"))) 089 { 090 rx = sty.getFloatValueWithUnits(); 091 } 092 093 if (getPres(sty.setName("ry"))) 094 { 095 ry = sty.getFloatValueWithUnits(); 096 } 097 098 ellipse.setFrame(cx - rx, cy - ry, rx * 2f, ry * 2f); 099 } 100 101 @Override 102 public void render(Graphics2D g) throws SVGException 103 { 104 beginLayer(g); 105 renderShape(g, ellipse); 106 finishLayer(g); 107 } 108 109 @Override 110 public Shape getShape() 111 { 112 return shapeToParent(ellipse); 113 } 114 115 @Override 116 public Rectangle2D getBoundingBox() throws SVGException 117 { 118 return boundsToParent(includeStrokeInBounds(ellipse.getBounds2D())); 119 } 120 121 /** 122 * Updates all attributes in this diagram associated with a time event. Ie, 123 * all attributes with track information. 124 * 125 * @return - true if this node has changed state as a result of the time 126 * update 127 */ 128 @Override 129 public boolean updateTime(double curTime) throws SVGException 130 { 131// if (trackManager.getNumTracks() == 0) return false; 132 boolean changeState = super.updateTime(curTime); 133 134 //Get current values for parameters 135 StyleAttribute sty = new StyleAttribute(); 136 boolean shapeChange = false; 137 138 if (getPres(sty.setName("cx"))) 139 { 140 float newCx = sty.getFloatValueWithUnits(); 141 if (newCx != cx) 142 { 143 cx = newCx; 144 shapeChange = true; 145 } 146 } 147 148 if (getPres(sty.setName("cy"))) 149 { 150 float newCy = sty.getFloatValueWithUnits(); 151 if (newCy != cy) 152 { 153 cy = newCy; 154 shapeChange = true; 155 } 156 } 157 158 if (getPres(sty.setName("rx"))) 159 { 160 float newRx = sty.getFloatValueWithUnits(); 161 if (newRx != rx) 162 { 163 rx = newRx; 164 shapeChange = true; 165 } 166 } 167 168 if (getPres(sty.setName("ry"))) 169 { 170 float newRy = sty.getFloatValueWithUnits(); 171 if (newRy != ry) 172 { 173 ry = newRy; 174 shapeChange = true; 175 } 176 } 177 178 if (shapeChange) 179 { 180 build(); 181// ellipse.setFrame(cx - rx, cy - ry, rx * 2f, ry * 2f); 182// return true; 183 } 184 185 return changeState || shapeChange; 186 } 187}