1 | /*
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2 | * SVG Salamander
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3 | * Copyright (c) 2004, Mark McKay
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4 | * All rights reserved.
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5 | *
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6 | * Redistribution and use in source and binary forms, with or
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7 | * without modification, are permitted provided that the following
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8 | * conditions are met:
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9 | *
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10 | * - Redistributions of source code must retain the above
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11 | * copyright notice, this list of conditions and the following
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12 | * disclaimer.
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13 | * - Redistributions in binary form must reproduce the above
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14 | * copyright notice, this list of conditions and the following
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15 | * disclaimer in the documentation and/or other materials
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16 | * provided with the distribution.
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17 | *
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18 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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19 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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20 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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21 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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22 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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23 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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24 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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25 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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27 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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29 | * OF THE POSSIBILITY OF SUCH DAMAGE.
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30 | *
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31 | * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
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32 | * projects can be found at http://www.kitfox.com
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33 | *
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34 | * Created on March 18, 2004, 6:52 AM
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35 | */
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36 | package com.kitfox.svg;
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37 |
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38 | import com.kitfox.svg.xml.StyleAttribute;
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39 | import java.awt.geom.Point2D;
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40 | import java.net.URI;
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41 | import java.net.URL;
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42 | import java.util.ArrayList;
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43 |
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44 | /**
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45 | * @author Mark McKay
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46 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
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47 | */
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48 | public class Filter extends SVGElement
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49 | {
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50 |
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51 | public static final String TAG_NAME = "filter";
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52 | public static final int FU_OBJECT_BOUNDING_BOX = 0;
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53 | public static final int FU_USER_SPACE_ON_USE = 1;
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54 | protected int filterUnits = FU_OBJECT_BOUNDING_BOX;
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55 | public static final int PU_OBJECT_BOUNDING_BOX = 0;
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56 | public static final int PU_USER_SPACE_ON_USE = 1;
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57 | protected int primitiveUnits = PU_OBJECT_BOUNDING_BOX;
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58 | float x = 0f;
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59 | float y = 0f;
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60 | float width = 1f;
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61 | float height = 1f;
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62 | Point2D filterRes = new Point2D.Double();
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63 | URL href = null;
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64 | final ArrayList filterEffects = new ArrayList();
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65 |
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66 | /**
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67 | * Creates a new instance of FillElement
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68 | */
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69 | public Filter()
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70 | {
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71 | }
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72 |
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73 | public String getTagName()
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74 | {
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75 | return TAG_NAME;
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76 | }
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77 |
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78 | /**
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79 | * Called after the start element but before the end element to indicate
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80 | * each child tag that has been processed
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81 | */
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82 | public void loaderAddChild(SVGLoaderHelper helper, SVGElement child) throws SVGElementException
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83 | {
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84 | super.loaderAddChild(helper, child);
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85 |
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86 | if (child instanceof FilterEffects)
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87 | {
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88 | filterEffects.add(child);
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89 | }
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90 | }
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91 |
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92 | protected void build() throws SVGException
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93 | {
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94 | super.build();
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95 |
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96 | StyleAttribute sty = new StyleAttribute();
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97 | String strn;
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98 |
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99 | if (getPres(sty.setName("filterUnits")))
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100 | {
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101 | strn = sty.getStringValue().toLowerCase();
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102 | if (strn.equals("userspaceonuse"))
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103 | {
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104 | filterUnits = FU_USER_SPACE_ON_USE;
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105 | } else
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106 | {
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107 | filterUnits = FU_OBJECT_BOUNDING_BOX;
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108 | }
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109 | }
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110 |
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111 | if (getPres(sty.setName("primitiveUnits")))
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112 | {
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113 | strn = sty.getStringValue().toLowerCase();
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114 | if (strn.equals("userspaceonuse"))
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115 | {
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116 | primitiveUnits = PU_USER_SPACE_ON_USE;
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117 | } else
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118 | {
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119 | primitiveUnits = PU_OBJECT_BOUNDING_BOX;
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120 | }
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121 | }
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122 |
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123 | if (getPres(sty.setName("x")))
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124 | {
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125 | x = sty.getFloatValueWithUnits();
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126 | }
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127 |
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128 | if (getPres(sty.setName("y")))
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129 | {
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130 | y = sty.getFloatValueWithUnits();
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131 | }
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132 |
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133 | if (getPres(sty.setName("width")))
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134 | {
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135 | width = sty.getFloatValueWithUnits();
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136 | }
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137 |
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138 | if (getPres(sty.setName("height")))
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139 | {
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140 | height = sty.getFloatValueWithUnits();
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141 | }
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142 |
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143 | try
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144 | {
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145 | if (getPres(sty.setName("xlink:href")))
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146 | {
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147 | URI src = sty.getURIValue(getXMLBase());
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148 | href = src.toURL();
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149 | }
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150 | } catch (Exception e)
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151 | {
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152 | throw new SVGException(e);
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153 | }
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154 |
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155 | }
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156 |
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157 | public float getX()
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158 | {
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159 | return x;
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160 | }
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161 |
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162 | public float getY()
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163 | {
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164 | return y;
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165 | }
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166 |
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167 | public float getWidth()
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168 | {
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169 | return width;
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170 | }
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171 |
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172 | public float getHeight()
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173 | {
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174 | return height;
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175 | }
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176 |
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177 | public boolean updateTime(double curTime) throws SVGException
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178 | {
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179 | // if (trackManager.getNumTracks() == 0) return false;
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180 |
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181 | //Get current values for parameters
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182 | StyleAttribute sty = new StyleAttribute();
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183 | boolean stateChange = false;
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184 |
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185 | if (getPres(sty.setName("x")))
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186 | {
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187 | float newVal = sty.getFloatValueWithUnits();
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188 | if (newVal != x)
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189 | {
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190 | x = newVal;
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191 | stateChange = true;
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192 | }
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193 | }
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194 |
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195 | if (getPres(sty.setName("y")))
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196 | {
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197 | float newVal = sty.getFloatValueWithUnits();
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198 | if (newVal != y)
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199 | {
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200 | y = newVal;
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201 | stateChange = true;
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202 | }
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203 | }
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204 |
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205 | if (getPres(sty.setName("width")))
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206 | {
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207 | float newVal = sty.getFloatValueWithUnits();
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208 | if (newVal != width)
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209 | {
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210 | width = newVal;
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211 | stateChange = true;
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212 | }
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213 | }
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214 |
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215 | if (getPres(sty.setName("height")))
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216 | {
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217 | float newVal = sty.getFloatValueWithUnits();
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218 | if (newVal != height)
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219 | {
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220 | height = newVal;
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221 | stateChange = true;
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222 | }
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223 | }
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224 |
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225 | try
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226 | {
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227 | if (getPres(sty.setName("xlink:href")))
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228 | {
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229 | URI src = sty.getURIValue(getXMLBase());
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230 | URL newVal = src.toURL();
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231 |
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232 | if (!newVal.equals(href))
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233 | {
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234 | href = newVal;
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235 | stateChange = true;
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236 | }
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237 | }
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238 | } catch (Exception e)
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239 | {
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240 | throw new SVGException(e);
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241 | }
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242 |
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243 | if (getPres(sty.setName("filterUnits")))
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244 | {
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245 | int newVal;
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246 | String strn = sty.getStringValue().toLowerCase();
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247 | if (strn.equals("userspaceonuse"))
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248 | {
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249 | newVal = FU_USER_SPACE_ON_USE;
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250 | } else
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251 | {
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252 | newVal = FU_OBJECT_BOUNDING_BOX;
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253 | }
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254 | if (newVal != filterUnits)
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255 | {
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256 | filterUnits = newVal;
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257 | stateChange = true;
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258 | }
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259 | }
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260 |
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261 | if (getPres(sty.setName("primitiveUnits")))
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262 | {
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263 | int newVal;
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264 | String strn = sty.getStringValue().toLowerCase();
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265 | if (strn.equals("userspaceonuse"))
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266 | {
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267 | newVal = PU_USER_SPACE_ON_USE;
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268 | } else
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269 | {
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270 | newVal = PU_OBJECT_BOUNDING_BOX;
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271 | }
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272 | if (newVal != filterUnits)
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273 | {
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274 | primitiveUnits = newVal;
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275 | stateChange = true;
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276 | }
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277 | }
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278 |
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279 |
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280 |
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281 | return stateChange;
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282 | }
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283 | }
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