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<SVGElement> filterEffects = new ArrayList<SVGElement>(); 065 066 /** 067 * Creates a new instance of FillElement 068 */ 069 public Filter() 070 { 071 } 072 073 @Override 074 public String getTagName() 075 { 076 return TAG_NAME; 077 } 078 079 /** 080 * Called after the start element but before the end element to indicate 081 * each child tag that has been processed 082 */ 083 @Override 084 public void loaderAddChild(SVGLoaderHelper helper, SVGElement child) throws SVGElementException 085 { 086 super.loaderAddChild(helper, child); 087 088 if (child instanceof FilterEffects) 089 { 090 filterEffects.add(child); 091 } 092 } 093 094 @Override 095 protected void build() throws SVGException 096 { 097 super.build(); 098 099 StyleAttribute sty = new StyleAttribute(); 100 String strn; 101 102 if (getPres(sty.setName("filterUnits"))) 103 { 104 strn = sty.getStringValue().toLowerCase(); 105 if (strn.equals("userspaceonuse")) 106 { 107 filterUnits = FU_USER_SPACE_ON_USE; 108 } else 109 { 110 filterUnits = FU_OBJECT_BOUNDING_BOX; 111 } 112 } 113 114 if (getPres(sty.setName("primitiveUnits"))) 115 { 116 strn = sty.getStringValue().toLowerCase(); 117 if (strn.equals("userspaceonuse")) 118 { 119 primitiveUnits = PU_USER_SPACE_ON_USE; 120 } else 121 { 122 primitiveUnits = PU_OBJECT_BOUNDING_BOX; 123 } 124 } 125 126 if (getPres(sty.setName("x"))) 127 { 128 x = sty.getFloatValueWithUnits(); 129 } 130 131 if (getPres(sty.setName("y"))) 132 { 133 y = sty.getFloatValueWithUnits(); 134 } 135 136 if (getPres(sty.setName("width"))) 137 { 138 width = sty.getFloatValueWithUnits(); 139 } 140 141 if (getPres(sty.setName("height"))) 142 { 143 height = sty.getFloatValueWithUnits(); 144 } 145 146 try 147 { 148 if (getPres(sty.setName("xlink:href"))) 149 { 150 URI src = sty.getURIValue(getXMLBase()); 151 href = src.toURL(); 152 } 153 } catch (Exception e) 154 { 155 throw new SVGException(e); 156 } 157 158 } 159 160 public float getX() 161 { 162 return x; 163 } 164 165 public float getY() 166 { 167 return y; 168 } 169 170 public float getWidth() 171 { 172 return width; 173 } 174 175 public float getHeight() 176 { 177 return height; 178 } 179 180 @Override 181 public boolean updateTime(double curTime) throws SVGException 182 { 183// if (trackManager.getNumTracks() == 0) return false; 184 185 //Get current values for parameters 186 StyleAttribute sty = new StyleAttribute(); 187 boolean stateChange = false; 188 189 if (getPres(sty.setName("x"))) 190 { 191 float newVal = sty.getFloatValueWithUnits(); 192 if (newVal != x) 193 { 194 x = newVal; 195 stateChange = true; 196 } 197 } 198 199 if (getPres(sty.setName("y"))) 200 { 201 float newVal = sty.getFloatValueWithUnits(); 202 if (newVal != y) 203 { 204 y = newVal; 205 stateChange = true; 206 } 207 } 208 209 if (getPres(sty.setName("width"))) 210 { 211 float newVal = sty.getFloatValueWithUnits(); 212 if (newVal != width) 213 { 214 width = newVal; 215 stateChange = true; 216 } 217 } 218 219 if (getPres(sty.setName("height"))) 220 { 221 float newVal = sty.getFloatValueWithUnits(); 222 if (newVal != height) 223 { 224 height = newVal; 225 stateChange = true; 226 } 227 } 228 229 try 230 { 231 if (getPres(sty.setName("xlink:href"))) 232 { 233 URI src = sty.getURIValue(getXMLBase()); 234 URL newVal = src.toURL(); 235 236 if (!newVal.equals(href)) 237 { 238 href = newVal; 239 stateChange = true; 240 } 241 } 242 } catch (Exception e) 243 { 244 throw new SVGException(e); 245 } 246 247 if (getPres(sty.setName("filterUnits"))) 248 { 249 int newVal; 250 String strn = sty.getStringValue().toLowerCase(); 251 if (strn.equals("userspaceonuse")) 252 { 253 newVal = FU_USER_SPACE_ON_USE; 254 } else 255 { 256 newVal = FU_OBJECT_BOUNDING_BOX; 257 } 258 if (newVal != filterUnits) 259 { 260 filterUnits = newVal; 261 stateChange = true; 262 } 263 } 264 265 if (getPres(sty.setName("primitiveUnits"))) 266 { 267 int newVal; 268 String strn = sty.getStringValue().toLowerCase(); 269 if (strn.equals("userspaceonuse")) 270 { 271 newVal = PU_USER_SPACE_ON_USE; 272 } else 273 { 274 newVal = PU_OBJECT_BOUNDING_BOX; 275 } 276 if (newVal != filterUnits) 277 { 278 primitiveUnits = newVal; 279 stateChange = true; 280 } 281 } 282 283 284 285 return stateChange; 286 } 287}