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 public String getTagName() 066 { 067 return TAG_NAME; 068 } 069 070 protected void build() throws SVGException 071 { 072 super.build(); 073 074 StyleAttribute sty = new StyleAttribute(); 075 076 if (getPres(sty.setName("cx"))) 077 { 078 cx = sty.getFloatValueWithUnits(); 079 } 080 081 if (getPres(sty.setName("cy"))) 082 { 083 cy = sty.getFloatValueWithUnits(); 084 } 085 086 if (getPres(sty.setName("rx"))) 087 { 088 rx = sty.getFloatValueWithUnits(); 089 } 090 091 if (getPres(sty.setName("ry"))) 092 { 093 ry = sty.getFloatValueWithUnits(); 094 } 095 096 ellipse.setFrame(cx - rx, cy - ry, rx * 2f, ry * 2f); 097 } 098 099 public void render(Graphics2D g) throws SVGException 100 { 101 beginLayer(g); 102 renderShape(g, ellipse); 103 finishLayer(g); 104 } 105 106 public Shape getShape() 107 { 108 return shapeToParent(ellipse); 109 } 110 111 public Rectangle2D getBoundingBox() throws SVGException 112 { 113 return boundsToParent(includeStrokeInBounds(ellipse.getBounds2D())); 114 } 115 116 /** 117 * Updates all attributes in this diagram associated with a time event. Ie, 118 * all attributes with track information. 119 * 120 * @return - true if this node has changed state as a result of the time 121 * update 122 */ 123 public boolean updateTime(double curTime) throws SVGException 124 { 125// if (trackManager.getNumTracks() == 0) return false; 126 boolean changeState = super.updateTime(curTime); 127 128 //Get current values for parameters 129 StyleAttribute sty = new StyleAttribute(); 130 boolean shapeChange = false; 131 132 if (getPres(sty.setName("cx"))) 133 { 134 float newCx = sty.getFloatValueWithUnits(); 135 if (newCx != cx) 136 { 137 cx = newCx; 138 shapeChange = true; 139 } 140 } 141 142 if (getPres(sty.setName("cy"))) 143 { 144 float newCy = sty.getFloatValueWithUnits(); 145 if (newCy != cy) 146 { 147 cy = newCy; 148 shapeChange = true; 149 } 150 } 151 152 if (getPres(sty.setName("rx"))) 153 { 154 float newRx = sty.getFloatValueWithUnits(); 155 if (newRx != rx) 156 { 157 rx = newRx; 158 shapeChange = true; 159 } 160 } 161 162 if (getPres(sty.setName("ry"))) 163 { 164 float newRy = sty.getFloatValueWithUnits(); 165 if (newRy != ry) 166 { 167 ry = newRy; 168 shapeChange = true; 169 } 170 } 171 172 if (shapeChange) 173 { 174 build(); 175// ellipse.setFrame(cx - rx, cy - ry, rx * 2f, ry * 2f); 176// return true; 177 } 178 179 return changeState || shapeChange; 180 } 181}