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 February 20, 2004, 10:00 PM 035 */ 036package com.kitfox.svg; 037 038import com.kitfox.svg.pathcmd.BuildHistory; 039import com.kitfox.svg.pathcmd.PathCommand; 040import com.kitfox.svg.xml.StyleAttribute; 041import java.awt.Graphics2D; 042import java.awt.Shape; 043import java.awt.geom.AffineTransform; 044import java.awt.geom.GeneralPath; 045import java.awt.geom.Rectangle2D; 046import java.util.Iterator; 047 048/** 049 * Implements an embedded font. 050 * 051 * SVG specification: http://www.w3.org/TR/SVG/fonts.html 052 * 053 * @author Mark McKay 054 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a> 055 */ 056public class MissingGlyph extends ShapeElement 057{ 058 public static final String TAG_NAME = "missingglyph"; 059 060 //We may define a path 061 private Shape path = null; 062 //Alternately, we may have child graphical elements 063 private int horizAdvX = -1; //Inherits font's value if not set 064 private int vertOriginX = -1; //Inherits font's value if not set 065 private int vertOriginY = -1; //Inherits font's value if not set 066 private int vertAdvY = -1; //Inherits font's value if not set 067 068 /** 069 * Creates a new instance of Font 070 */ 071 public MissingGlyph() 072 { 073 } 074 075 public String getTagName() 076 { 077 return TAG_NAME; 078 } 079 080 /** 081 * Called after the start element but before the end element to indicate 082 * each child tag that has been processed 083 */ 084 public void loaderAddChild(SVGLoaderHelper helper, SVGElement child) throws SVGElementException 085 { 086 super.loaderAddChild(helper, child); 087 } 088 089 protected void build() throws SVGException 090 { 091 super.build(); 092 093 StyleAttribute sty = new StyleAttribute(); 094 095 String commandList = ""; 096 if (getPres(sty.setName("d"))) 097 { 098 commandList = sty.getStringValue(); 099 } 100 101 102 //If glyph path was specified, calculate it 103 if (commandList != null) 104 { 105 String fillRule = getStyle(sty.setName("fill-rule")) ? sty.getStringValue() : "nonzero"; 106 107 PathCommand[] commands = parsePathList(commandList); 108 109 GeneralPath buildPath = new GeneralPath( 110 fillRule.equals("evenodd") ? GeneralPath.WIND_EVEN_ODD : GeneralPath.WIND_NON_ZERO, 111 commands.length); 112 113 BuildHistory hist = new BuildHistory(); 114 115 for (int i = 0; i < commands.length; i++) 116 { 117 PathCommand cmd = commands[i]; 118 cmd.appendPath(buildPath, hist); 119 } 120 121 //Reflect glyph path to put it in user coordinate system 122 AffineTransform at = new AffineTransform(); 123 at.scale(1, -1); 124 path = at.createTransformedShape(buildPath); 125 } 126 127 128 //Read glyph spacing info 129 if (getPres(sty.setName("horiz-adv-x"))) 130 { 131 horizAdvX = sty.getIntValue(); 132 } 133 134 if (getPres(sty.setName("vert-origin-x"))) 135 { 136 vertOriginX = sty.getIntValue(); 137 } 138 139 if (getPres(sty.setName("vert-origin-y"))) 140 { 141 vertOriginY = sty.getIntValue(); 142 } 143 144 if (getPres(sty.setName("vert-adv-y"))) 145 { 146 vertAdvY = sty.getIntValue(); 147 } 148 } 149 150 public Shape getPath() 151 { 152 return path; 153 } 154 155 public void render(Graphics2D g) throws SVGException 156 { 157 //Do not push or pop stack 158 159 if (path != null) 160 { 161 renderShape(g, path); 162 } 163 164 Iterator it = children.iterator(); 165 while (it.hasNext()) 166 { 167 SVGElement ele = (SVGElement) it.next(); 168 if (ele instanceof RenderableElement) 169 { 170 ((RenderableElement) ele).render(g); 171 } 172 } 173 174 //Do not push or pop stack 175 } 176 177 public int getHorizAdvX() 178 { 179 if (horizAdvX == -1) 180 { 181 horizAdvX = ((Font) parent).getHorizAdvX(); 182 } 183 return horizAdvX; 184 } 185 186 public int getVertOriginX() 187 { 188 if (vertOriginX == -1) 189 { 190 vertOriginX = getHorizAdvX() / 2; 191 } 192 return vertOriginX; 193 } 194 195 public int getVertOriginY() 196 { 197 if (vertOriginY == -1) 198 { 199 vertOriginY = ((Font) parent).getFontFace().getAscent(); 200 } 201 return vertOriginY; 202 } 203 204 public int getVertAdvY() 205 { 206 if (vertAdvY == -1) 207 { 208 vertAdvY = ((Font) parent).getFontFace().getUnitsPerEm(); 209 } 210 return vertAdvY; 211 212 } 213 214 public Shape getShape() 215 { 216 if (path != null) 217 { 218 return shapeToParent(path); 219 } 220 return null; 221 } 222 223 public Rectangle2D getBoundingBox() throws SVGException 224 { 225 if (path != null) 226 { 227 return boundsToParent(includeStrokeInBounds(path.getBounds2D())); 228 } 229 return null; 230 } 231 232 /** 233 * Updates all attributes in this diagram associated with a time event. Ie, 234 * all attributes with track information. 235 * 236 * @return - true if this node has changed state as a result of the time 237 * update 238 */ 239 public boolean updateTime(double curTime) throws SVGException 240 { 241 //Fonts can't change 242 return false; 243 } 244 245 /** 246 * @param path the path to set 247 */ 248 public void setPath(Shape path) 249 { 250 this.path = path; 251 } 252 253 /** 254 * @param horizAdvX the horizAdvX to set 255 */ 256 public void setHorizAdvX(int horizAdvX) 257 { 258 this.horizAdvX = horizAdvX; 259 } 260 261 /** 262 * @param vertOriginX the vertOriginX to set 263 */ 264 public void setVertOriginX(int vertOriginX) 265 { 266 this.vertOriginX = vertOriginX; 267 } 268 269 /** 270 * @param vertOriginY the vertOriginY to set 271 */ 272 public void setVertOriginY(int vertOriginY) 273 { 274 this.vertOriginY = vertOriginY; 275 } 276 277 /** 278 * @param vertAdvY the vertAdvY to set 279 */ 280 public void setVertAdvY(int vertAdvY) 281 { 282 this.vertAdvY = vertAdvY; 283 } 284}