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 January 26, 2004, 1:56 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.Color;
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40 |
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41 | /**
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42 | * @author Mark McKay
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43 | * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
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44 | */
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45 | public class Stop extends SVGElement
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46 | {
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47 |
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48 | public static final String TAG_NAME = "stop";
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49 | float offset = 0f;
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50 | float opacity = 1f;
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51 | Color color = Color.black;
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52 |
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53 | /**
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54 | * Creates a new instance of Stop
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55 | */
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56 | public Stop()
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57 | {
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58 | }
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59 |
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60 | public String getTagName()
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61 | {
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62 | return TAG_NAME;
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63 | }
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64 |
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65 | protected void build() throws SVGException
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66 | {
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67 | super.build();
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68 |
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69 | StyleAttribute sty = new StyleAttribute();
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70 |
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71 | if (getPres(sty.setName("offset")))
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72 | {
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73 | offset = sty.getFloatValue();
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74 | String units = sty.getUnits();
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75 | if (units != null && units.equals("%"))
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76 | {
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77 | offset /= 100f;
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78 | }
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79 | if (offset > 1)
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80 | {
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81 | offset = 1;
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82 | }
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83 | if (offset < 0)
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84 | {
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85 | offset = 0;
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86 | }
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87 | }
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88 |
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89 | if (getStyle(sty.setName("stop-color")))
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90 | {
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91 | color = sty.getColorValue();
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92 | }
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93 |
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94 | if (getStyle(sty.setName("stop-opacity")))
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95 | {
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96 | opacity = sty.getRatioValue();
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97 | }
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98 | }
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99 |
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100 | /**
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101 | * Updates all attributes in this diagram associated with a time event. Ie,
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102 | * all attributes with track information.
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103 | *
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104 | * @return - true if this node has changed state as a result of the time
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105 | * update
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106 | */
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107 | public boolean updateTime(double curTime) throws SVGException
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108 | {
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109 | // if (trackManager.getNumTracks() == 0) return false;
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110 |
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111 | //Get current values for parameters
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112 | StyleAttribute sty = new StyleAttribute();
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113 | boolean shapeChange = false;
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114 |
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115 | if (getPres(sty.setName("offset")))
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116 | {
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117 | float newVal = sty.getFloatValue();
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118 | if (newVal != offset)
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119 | {
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120 | offset = newVal;
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121 | shapeChange = true;
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122 | }
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123 | }
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124 |
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125 | if (getStyle(sty.setName("stop-color")))
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126 | {
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127 | Color newVal = sty.getColorValue();
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128 | if (newVal != color)
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129 | {
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130 | color = newVal;
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131 | shapeChange = true;
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132 | }
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133 | }
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134 |
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135 | if (getStyle(sty.setName("stop-opacity")))
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136 | {
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137 | float newVal = sty.getFloatValue();
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138 | if (newVal != opacity)
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139 | {
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140 | opacity = newVal;
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141 | shapeChange = true;
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142 | }
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143 | }
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144 |
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145 | return shapeChange;
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146 | }
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147 | }
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