source: josm/trunk/src/com/kitfox/svg/xml/StyleAttribute.java@ 14331

Last change on this file since 14331 was 8084, checked in by bastiK, 10 years ago

add svn:eol-style=native for svgsalamander
  • Property svn:eol-style set to native
File size: 8.9 KB
Line 
1/*
2 * SVG Salamander
3 * Copyright (c) 2004, Mark McKay
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or
7 * without modification, are permitted provided that the following
8 * conditions are met:
9 *
10 * - Redistributions of source code must retain the above
11 * copyright notice, this list of conditions and the following
12 * disclaimer.
13 * - Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials
16 * provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
23 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
27 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
29 * OF THE POSSIBILITY OF SUCH DAMAGE.
30 *
31 * Mark McKay can be contacted at mark@kitfox.com. Salamander and other
32 * projects can be found at http://www.kitfox.com
33 *
34 * Created on January 27, 2004, 2:53 PM
35 */
36
37package com.kitfox.svg.xml;
38
39import com.kitfox.svg.SVGConst;
40import java.awt.*;
41import java.io.*;
42import java.net.*;
43import java.util.logging.Level;
44import java.util.logging.Logger;
45import java.util.regex.*;
46
47/**
48 * @author Mark McKay
49 * @author <a href="mailto:mark@kitfox.com">Mark McKay</a>
50 */
51public class StyleAttribute implements Serializable
52{
53 public static final long serialVersionUID = 0;
54
55 static final Pattern patternUrl = Pattern.compile("\\s*url\\((.*)\\)\\s*");
56 static final Matcher matchFpNumUnits = Pattern.compile("\\s*([-+]?((\\d*\\.\\d+)|(\\d+))([-+]?[eE]\\d+)?)\\s*(px|cm|mm|in|pc|pt|em|ex)\\s*").matcher("");
57
58 String name;
59 String stringValue;
60
61 boolean colorCompatable = false;
62 boolean urlCompatable = false;
63
64 /** Creates a new instance of StyleAttribute */
65 public StyleAttribute()
66 {
67 this(null, null);
68 }
69
70 public StyleAttribute(String name)
71 {
72 this.name = name;
73 stringValue = null;
74 }
75
76 public StyleAttribute(String name, String stringValue)
77 {
78 this.name = name;
79 this.stringValue = stringValue;
80 }
81
82 public String getName() {
83 return name;
84 }
85
86 public StyleAttribute setName(String name)
87 {
88 this.name = name;
89 return this;
90 }
91
92 public String getStringValue()
93 {
94 return stringValue;
95 }
96
97 public String[] getStringList()
98 {
99 return XMLParseUtil.parseStringList(stringValue);
100 }
101
102 public void setStringValue(String value)
103 {
104 stringValue = value;
105 }
106
107 public boolean getBooleanValue() {
108 return stringValue.toLowerCase().equals("true");
109 }
110
111 public int getIntValue() {
112 return XMLParseUtil.findInt(stringValue);
113 }
114
115 public int[] getIntList() {
116 return XMLParseUtil.parseIntList(stringValue);
117 }
118
119 public double getDoubleValue() {
120 return XMLParseUtil.findDouble(stringValue);
121 }
122
123 public double[] getDoubleList() {
124 return XMLParseUtil.parseDoubleList(stringValue);
125 }
126
127 public float getFloatValue() {
128 return XMLParseUtil.findFloat(stringValue);
129 }
130
131 public float[] getFloatList() {
132 return XMLParseUtil.parseFloatList(stringValue);
133 }
134
135 public float getRatioValue() {
136 return (float)XMLParseUtil.parseRatio(stringValue);
137// try { return Float.parseFloat(stringValue); }
138// catch (Exception e) {}
139// return 0f;
140 }
141
142 public String getUnits() {
143 matchFpNumUnits.reset(stringValue);
144 if (!matchFpNumUnits.matches()) return null;
145 return matchFpNumUnits.group(6);
146 }
147
148 public NumberWithUnits getNumberWithUnits() {
149 return XMLParseUtil.parseNumberWithUnits(stringValue);
150 }
151
152 public float getFloatValueWithUnits()
153 {
154 NumberWithUnits number = getNumberWithUnits();
155 return convertUnitsToPixels(number.getUnits(), number.getValue());
156 }
157
158 static public float convertUnitsToPixels(int unitType, float value)
159 {
160 if (unitType == NumberWithUnits.UT_UNITLESS || unitType == NumberWithUnits.UT_PERCENT)
161 {
162 return value;
163 }
164
165 float pixPerInch;
166 try
167 {
168 pixPerInch = (float)Toolkit.getDefaultToolkit().getScreenResolution();
169 }
170 catch (HeadlessException ex)
171 {
172 //default to 72 dpi
173 pixPerInch = 72;
174 }
175 final float inchesPerCm = .3936f;
176
177 switch (unitType)
178 {
179 case NumberWithUnits.UT_IN:
180 return value * pixPerInch;
181 case NumberWithUnits.UT_CM:
182 return value * inchesPerCm * pixPerInch;
183 case NumberWithUnits.UT_MM:
184 return value * .1f * inchesPerCm * pixPerInch;
185 case NumberWithUnits.UT_PT:
186 return value * (1f / 72f) * pixPerInch;
187 case NumberWithUnits.UT_PC:
188 return value * (1f / 6f) * pixPerInch;
189 }
190
191 return value;
192 }
193
194 public Color getColorValue()
195 {
196 return ColorTable.parseColor(stringValue);
197 }
198
199 public String parseURLFn()
200 {
201 Matcher matchUrl = patternUrl.matcher(stringValue);
202 if (!matchUrl.matches())
203 {
204 return null;
205 }
206 return matchUrl.group(1);
207 }
208
209 public URL getURLValue(URL docRoot)
210 {
211 String fragment = parseURLFn();
212 if (fragment == null) return null;
213 try {
214 return new URL(docRoot, fragment);
215 }
216 catch (Exception e)
217 {
218 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, null, e);
219 return null;
220 }
221 }
222
223 public URL getURLValue(URI docRoot)
224 {
225 String fragment = parseURLFn();
226 if (fragment == null) return null;
227 try {
228 URI ref = docRoot.resolve(fragment);
229 return ref.toURL();
230 }
231 catch (Exception e)
232 {
233 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, null, e);
234 return null;
235 }
236 }
237
238 public URI getURIValue()
239 {
240 return getURIValue(null);
241 }
242
243 /**
244 * Parse this sytle attribute as a URL and return it in URI form resolved
245 * against the passed base.
246 *
247 * @param base - URI to resolve against. If null, will return value without
248 * attempting to resolve it.
249 */
250 public URI getURIValue(URI base)
251 {
252 try {
253 String fragment = parseURLFn();
254 if (fragment == null) fragment = stringValue.replaceAll("\\s+", "");
255 if (fragment == null) return null;
256
257 //======================
258 //This gets around a bug in the 1.5.0 JDK
259 if (Pattern.matches("[a-zA-Z]:!\\\\.*", fragment))
260 {
261 File file = new File(fragment);
262 return file.toURI();
263 }
264 //======================
265
266 //[scheme:]scheme-specific-part[#fragment]
267
268 URI uriFrag = new URI(fragment);
269 if (uriFrag.isAbsolute())
270 {
271 //Has scheme
272 return uriFrag;
273 }
274
275 if (base == null) return uriFrag;
276
277 URI relBase = new URI(null, base.getSchemeSpecificPart(), null);
278 URI relUri;
279 if (relBase.isOpaque())
280 {
281 relUri = new URI(null, base.getSchemeSpecificPart(), uriFrag.getFragment());
282 }
283 else
284 {
285 relUri = relBase.resolve(uriFrag);
286 }
287 return new URI(base.getScheme() + ":" + relUri);
288 }
289 catch (Exception e)
290 {
291 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, null, e);
292 return null;
293 }
294 }
295
296 public static void main(String[] args)
297 {
298 try
299 {
300 URI uri = new URI("jar:http://www.kitfox.com/jackal/jackal.jar!/res/doc/about.svg");
301 uri = uri.resolve("#myFragment");
302
303 System.err.println(uri.toString());
304
305 uri = new URI("http://www.kitfox.com/jackal/jackal.html");
306 uri = uri.resolve("#myFragment");
307
308 System.err.println(uri.toString());
309 }
310 catch (Exception e)
311 {
312 Logger.getLogger(SVGConst.SVG_LOGGER).log(Level.WARNING, null, e);
313 }
314 }
315}
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