001 /*
002 * Rect.java
003 *
004 *
005 * The Salamander Project - 2D and 3D graphics libraries in Java
006 * Copyright (C) 2004 Mark McKay
007 *
008 * This library is free software; you can redistribute it and/or
009 * modify it under the terms of the GNU Lesser General Public
010 * License as published by the Free Software Foundation; either
011 * version 2.1 of the License, or (at your option) any later version.
012 *
013 * This library is distributed in the hope that it will be useful,
014 * but WITHOUT ANY WARRANTY; without even the implied warranty of
015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
016 * Lesser General Public License for more details.
017 *
018 * You should have received a copy of the GNU Lesser General Public
019 * License along with this library; if not, write to the Free Software
020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
021 *
022 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
023 * projects can be found at http://www.kitfox.com
024 *
025 * Created on January 26, 2004, 5:25 PM
026 */
027
028 package com.kitfox.svg;
029
030 import com.kitfox.svg.xml.StyleAttribute;
031 import java.awt.Graphics2D;
032 import java.awt.Shape;
033 import java.awt.geom.Line2D;
034 import java.awt.geom.Rectangle2D;
035
036 /**
037 * @author Mark McKay
038 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
039 */
040 public class Line extends ShapeElement {
041
042 float x1 = 0f;
043 float y1 = 0f;
044 float x2 = 0f;
045 float y2 = 0f;
046
047 Line2D.Float line;
048 // RectangularShape rect;
049
050 /** Creates a new instance of Rect */
051 public Line() {
052 }
053
054 /*
055 public void loaderStartElement(SVGLoaderHelper helper, Attributes attrs, SVGElement parent)
056 {
057 //Load style string
058 super.loaderStartElement(helper, attrs, parent);
059
060 String x1 = attrs.getValue("x1");
061 String y1 = attrs.getValue("y1");
062 String x2 = attrs.getValue("x2");
063 String y2 = attrs.getValue("y2");
064
065 this.x1 = XMLParseUtil.parseFloat(x1);
066 this.y1 = XMLParseUtil.parseFloat(y1);
067 this.x2 = XMLParseUtil.parseFloat(x2);
068 this.y2 = XMLParseUtil.parseFloat(y2);
069
070 build();
071 }
072 */
073 protected void build() throws SVGException
074 {
075 super.build();
076
077 StyleAttribute sty = new StyleAttribute();
078
079 if (getPres(sty.setName("x1"))) x1 = sty.getFloatValueWithUnits();
080
081 if (getPres(sty.setName("y1"))) y1 = sty.getFloatValueWithUnits();
082
083 if (getPres(sty.setName("x2"))) x2 = sty.getFloatValueWithUnits();
084
085 if (getPres(sty.setName("y2"))) y2 = sty.getFloatValueWithUnits();
086
087 line = new Line2D.Float(x1, y1, x2, y2);
088 }
089
090
091 public void render(Graphics2D g) throws SVGException
092 {
093 beginLayer(g);
094 renderShape(g, line);
095 finishLayer(g);
096 }
097
098 public Shape getShape()
099 {
100 return shapeToParent(line);
101 }
102
103 public Rectangle2D getBoundingBox() throws SVGException
104 {
105 return boundsToParent(includeStrokeInBounds(line.getBounds2D()));
106 }
107
108 /**
109 * Updates all attributes in this diagram associated with a time event.
110 * Ie, all attributes with track information.
111 * @return - true if this node has changed state as a result of the time
112 * update
113 */
114 public boolean updateTime(double curTime) throws SVGException
115 {
116 // if (trackManager.getNumTracks() == 0) return false;
117 boolean changeState = super.updateTime(curTime);
118
119 //Get current values for parameters
120 StyleAttribute sty = new StyleAttribute();
121 boolean shapeChange = false;
122
123 if (getPres(sty.setName("x1")))
124 {
125 float newVal = sty.getFloatValueWithUnits();
126 if (newVal != x1)
127 {
128 x1 = newVal;
129 shapeChange = true;
130 }
131 }
132
133 if (getPres(sty.setName("y1")))
134 {
135 float newVal = sty.getFloatValueWithUnits();
136 if (newVal != y1)
137 {
138 y1 = newVal;
139 shapeChange = true;
140 }
141 }
142
143 if (getPres(sty.setName("x2")))
144 {
145 float newVal = sty.getFloatValueWithUnits();
146 if (newVal != x2)
147 {
148 x2 = newVal;
149 shapeChange = true;
150 }
151 }
152
153 if (getPres(sty.setName("y2")))
154 {
155 float newVal = sty.getFloatValueWithUnits();
156 if (newVal != y2)
157 {
158 y2 = newVal;
159 shapeChange = true;
160 }
161 }
162
163 if (shapeChange)
164 {
165 build();
166 // line = new Line2D.Float(x1, y1, x2, y2);
167 // return true;
168 }
169
170 return changeState || shapeChange;
171 }
172 }