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, 1:56 AM 035 */ 036package com.kitfox.svg; 037 038import com.kitfox.svg.xml.StyleAttribute; 039import java.awt.Color; 040 041/** 042 * @author Mark McKay 043 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 044 */ 045public class Stop extends SVGElement 046{ 047 048 public static final String TAG_NAME = "stop"; 049 float offset = 0f; 050 float opacity = 1f; 051 Color color = Color.black; 052 053 /** 054 * Creates a new instance of Stop 055 */ 056 public Stop() 057 { 058 } 059 060 @Override 061 public String getTagName() 062 { 063 return TAG_NAME; 064 } 065 066 @Override 067 protected void build() throws SVGException 068 { 069 super.build(); 070 071 StyleAttribute sty = new StyleAttribute(); 072 073 if (getPres(sty.setName("offset"))) 074 { 075 offset = sty.getFloatValue(); 076 String units = sty.getUnits(); 077 if (units != null && units.equals("%")) 078 { 079 offset /= 100f; 080 } 081 if (offset > 1) 082 { 083 offset = 1; 084 } 085 if (offset < 0) 086 { 087 offset = 0; 088 } 089 } 090 091 if (getStyle(sty.setName("stop-color"))) 092 { 093 color = sty.getColorValue(); 094 } 095 096 if (getStyle(sty.setName("stop-opacity"))) 097 { 098 opacity = sty.getRatioValue(); 099 } 100 } 101 102 /** 103 * Updates all attributes in this diagram associated with a time event. Ie, 104 * all attributes with track information. 105 * 106 * @return - true if this node has changed state as a result of the time 107 * update 108 */ 109 @Override 110 public boolean updateTime(double curTime) throws SVGException 111 { 112// if (trackManager.getNumTracks() == 0) return false; 113 114 //Get current values for parameters 115 StyleAttribute sty = new StyleAttribute(); 116 boolean shapeChange = false; 117 118 if (getPres(sty.setName("offset"))) 119 { 120 float newVal = sty.getFloatValue(); 121 if (newVal != offset) 122 { 123 offset = newVal; 124 shapeChange = true; 125 } 126 } 127 128 if (getStyle(sty.setName("stop-color"))) 129 { 130 Color newVal = sty.getColorValue(); 131 if (newVal != color) 132 { 133 color = newVal; 134 shapeChange = true; 135 } 136 } 137 138 if (getStyle(sty.setName("stop-opacity"))) 139 { 140 float newVal = sty.getFloatValue(); 141 if (newVal != opacity) 142 { 143 opacity = newVal; 144 shapeChange = true; 145 } 146 } 147 148 return shapeChange; 149 } 150}