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 March 18, 2004, 6:52 AM 035 */ 036package com.kitfox.svg; 037 038import com.kitfox.svg.xml.StyleAttribute; 039import java.awt.geom.Point2D; 040import java.net.URI; 041import java.net.URL; 042import java.util.ArrayList; 043 044/** 045 * @author Mark McKay 046 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 047 */ 048public class Filter extends SVGElement 049{ 050 051 public static final String TAG_NAME = "filter"; 052 public static final int FU_OBJECT_BOUNDING_BOX = 0; 053 public static final int FU_USER_SPACE_ON_USE = 1; 054 protected int filterUnits = FU_OBJECT_BOUNDING_BOX; 055 public static final int PU_OBJECT_BOUNDING_BOX = 0; 056 public static final int PU_USER_SPACE_ON_USE = 1; 057 protected int primitiveUnits = PU_OBJECT_BOUNDING_BOX; 058 float x = 0f; 059 float y = 0f; 060 float width = 1f; 061 float height = 1f; 062 Point2D filterRes = new Point2D.Double(); 063 URL href = null; 064 final ArrayList filterEffects = new ArrayList(); 065 066 /** 067 * Creates a new instance of FillElement 068 */ 069 public Filter() 070 { 071 } 072 073 public String getTagName() 074 { 075 return TAG_NAME; 076 } 077 078 /** 079 * Called after the start element but before the end element to indicate 080 * each child tag that has been processed 081 */ 082 public void loaderAddChild(SVGLoaderHelper helper, SVGElement child) throws SVGElementException 083 { 084 super.loaderAddChild(helper, child); 085 086 if (child instanceof FilterEffects) 087 { 088 filterEffects.add(child); 089 } 090 } 091 092 protected void build() throws SVGException 093 { 094 super.build(); 095 096 StyleAttribute sty = new StyleAttribute(); 097 String strn; 098 099 if (getPres(sty.setName("filterUnits"))) 100 { 101 strn = sty.getStringValue().toLowerCase(); 102 if (strn.equals("userspaceonuse")) 103 { 104 filterUnits = FU_USER_SPACE_ON_USE; 105 } else 106 { 107 filterUnits = FU_OBJECT_BOUNDING_BOX; 108 } 109 } 110 111 if (getPres(sty.setName("primitiveUnits"))) 112 { 113 strn = sty.getStringValue().toLowerCase(); 114 if (strn.equals("userspaceonuse")) 115 { 116 primitiveUnits = PU_USER_SPACE_ON_USE; 117 } else 118 { 119 primitiveUnits = PU_OBJECT_BOUNDING_BOX; 120 } 121 } 122 123 if (getPres(sty.setName("x"))) 124 { 125 x = sty.getFloatValueWithUnits(); 126 } 127 128 if (getPres(sty.setName("y"))) 129 { 130 y = sty.getFloatValueWithUnits(); 131 } 132 133 if (getPres(sty.setName("width"))) 134 { 135 width = sty.getFloatValueWithUnits(); 136 } 137 138 if (getPres(sty.setName("height"))) 139 { 140 height = sty.getFloatValueWithUnits(); 141 } 142 143 try 144 { 145 if (getPres(sty.setName("xlink:href"))) 146 { 147 URI src = sty.getURIValue(getXMLBase()); 148 href = src.toURL(); 149 } 150 } catch (Exception e) 151 { 152 throw new SVGException(e); 153 } 154 155 } 156 157 public float getX() 158 { 159 return x; 160 } 161 162 public float getY() 163 { 164 return y; 165 } 166 167 public float getWidth() 168 { 169 return width; 170 } 171 172 public float getHeight() 173 { 174 return height; 175 } 176 177 public boolean updateTime(double curTime) throws SVGException 178 { 179// if (trackManager.getNumTracks() == 0) return false; 180 181 //Get current values for parameters 182 StyleAttribute sty = new StyleAttribute(); 183 boolean stateChange = false; 184 185 if (getPres(sty.setName("x"))) 186 { 187 float newVal = sty.getFloatValueWithUnits(); 188 if (newVal != x) 189 { 190 x = newVal; 191 stateChange = true; 192 } 193 } 194 195 if (getPres(sty.setName("y"))) 196 { 197 float newVal = sty.getFloatValueWithUnits(); 198 if (newVal != y) 199 { 200 y = newVal; 201 stateChange = true; 202 } 203 } 204 205 if (getPres(sty.setName("width"))) 206 { 207 float newVal = sty.getFloatValueWithUnits(); 208 if (newVal != width) 209 { 210 width = newVal; 211 stateChange = true; 212 } 213 } 214 215 if (getPres(sty.setName("height"))) 216 { 217 float newVal = sty.getFloatValueWithUnits(); 218 if (newVal != height) 219 { 220 height = newVal; 221 stateChange = true; 222 } 223 } 224 225 try 226 { 227 if (getPres(sty.setName("xlink:href"))) 228 { 229 URI src = sty.getURIValue(getXMLBase()); 230 URL newVal = src.toURL(); 231 232 if (!newVal.equals(href)) 233 { 234 href = newVal; 235 stateChange = true; 236 } 237 } 238 } catch (Exception e) 239 { 240 throw new SVGException(e); 241 } 242 243 if (getPres(sty.setName("filterUnits"))) 244 { 245 int newVal; 246 String strn = sty.getStringValue().toLowerCase(); 247 if (strn.equals("userspaceonuse")) 248 { 249 newVal = FU_USER_SPACE_ON_USE; 250 } else 251 { 252 newVal = FU_OBJECT_BOUNDING_BOX; 253 } 254 if (newVal != filterUnits) 255 { 256 filterUnits = newVal; 257 stateChange = true; 258 } 259 } 260 261 if (getPres(sty.setName("primitiveUnits"))) 262 { 263 int newVal; 264 String strn = sty.getStringValue().toLowerCase(); 265 if (strn.equals("userspaceonuse")) 266 { 267 newVal = PU_USER_SPACE_ON_USE; 268 } else 269 { 270 newVal = PU_OBJECT_BOUNDING_BOX; 271 } 272 if (newVal != filterUnits) 273 { 274 primitiveUnits = newVal; 275 stateChange = true; 276 } 277 } 278 279 280 281 return stateChange; 282 } 283}