root / trunk / frameworks / _fwAndami / src / com / iver / andami / iconthemes / IconThemeManager.java @ 11002
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1 | 11002 | cesar | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | |||
42 | package com.iver.andami.iconthemes; |
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43 | |||
44 | import java.io.File; |
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45 | import java.io.FileInputStream; |
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46 | import java.io.IOException; |
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47 | import java.io.InputStream; |
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48 | import java.util.ArrayList; |
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49 | import java.util.Enumeration; |
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50 | import java.util.zip.ZipEntry; |
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51 | import java.util.zip.ZipException; |
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52 | import java.util.zip.ZipFile; |
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53 | |||
54 | import org.kxml2.io.KXmlParser; |
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55 | import org.xmlpull.v1.XmlPullParserException; |
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56 | |||
57 | /**
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58 | * <p>This class deals with icon themes, it understands the on-disk theme
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59 | * format, it is able to list the availabe themes, to get the default
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60 | * theme and to change it.</p>
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61 | *
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62 | * <p>A XML theme description file should look similar to:
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63 | * <pre>
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64 | * <?xml version="1.0" encoding="utf-8"?>
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65 | * <theme>
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66 | * <name>Default gvSIG icon theme</name>
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67 | * <description>Clear fancy super great icon theme for gvSIG. Author: Salvador Dal?, <salvador.dali@art.org> </description>
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68 | * <version>1.2</version>
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69 | * </theme>
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70 | * </pre>
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71 | *
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72 | *
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73 | * @author Cesar Martinez Izquierdo <cesar.martinez@iver.es>
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74 | *
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75 | */
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76 | public class IconThemeManager { |
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77 | protected File themesDir = null; |
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78 | protected final String themeDefinitionFile = "theme.xml"; |
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79 | |||
80 | /**
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81 | *
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82 | * @param themesDir
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83 | */
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84 | public IconThemeManager(File themesDir) { |
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85 | this.themesDir = themesDir;
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86 | } |
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87 | |||
88 | /**
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89 | *
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90 | * @return
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91 | */
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92 | public IconThemeInfo[] list() { |
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93 | File[] files = themesDir.listFiles(); |
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94 | if (files==null) return null; |
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95 | |||
96 | ArrayList themeList = new ArrayList(); |
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97 | IconThemeInfo info; |
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98 | for (int i=0; i<files.length; i++) { |
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99 | if (files[i].isDirectory()) {
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100 | info = readInfoFromDir(files[i]); |
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101 | if (info!=null) |
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102 | themeList.add(info); |
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103 | } |
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104 | else if (files[i].isFile()) { // ensure it's a regular file |
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105 | info = readInfoFromZip(files[i]); |
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106 | if (info!=null) |
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107 | themeList.add(info); |
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108 | } |
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109 | } |
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110 | |||
111 | return (IconThemeInfo[]) themeList.toArray(new IconThemeInfo[0]); |
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112 | } |
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113 | |||
114 | private IconThemeInfo readInfoFromDir(File dir){ |
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115 | File themeDefinition = new File(dir + File.separator + themeDefinitionFile); |
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116 | IconThemeInfo themeInfo; |
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117 | try {
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118 | // try reading the XML file
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119 | if (themeDefinition.exists() && themeDefinition.isFile()) {
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120 | themeInfo = readXML(new FileInputStream(themeDefinition)); |
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121 | themeInfo.setResource(dir); |
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122 | return themeInfo;
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123 | } |
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124 | } catch (IOException e) {} |
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125 | catch (XmlPullParserException e) {}
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126 | // the XML parsing failed, just show the dir name
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127 | themeInfo = new IconThemeInfo();
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128 | themeInfo.setName(dir.getName()); |
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129 | themeInfo.setDescription(dir.getName()); |
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130 | themeInfo.setResource(dir); |
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131 | return themeInfo;
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132 | } |
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133 | |||
134 | private IconThemeInfo readXML(InputStream xmlStream) throws XmlPullParserException, IOException { |
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135 | KXmlParser parser = new KXmlParser();
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136 | // we use null encoding, in this way kxml2 tries to detect the encoding
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137 | parser.setInput(xmlStream, null);
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138 | IconThemeInfo themeInfo = new IconThemeInfo();
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139 | for (parser.next(); parser.getEventType()!=KXmlParser.END_DOCUMENT; parser.next()) {
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140 | // este bucle externo recorre las etiquetas de primer y segundo nivel
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141 | if (parser.getEventType()==KXmlParser.START_TAG) {
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142 | if (parser.getName().equals("name")) { |
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143 | themeInfo.setName(parser.nextText()); |
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144 | } |
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145 | else if (parser.getName().equals("description")) { |
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146 | themeInfo.setDescription(parser.nextText()); |
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147 | } |
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148 | else if (parser.getName().equals("version")) { |
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149 | themeInfo.setVersion(parser.nextText()); |
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150 | } |
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151 | } |
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152 | } |
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153 | return themeInfo;
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154 | } |
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155 | |||
156 | private IconThemeInfo readInfoFromZip(File zipFile) { |
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157 | try {
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158 | ZipFile file = new ZipFile(zipFile); |
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159 | IconThemeInfo themeInfo; |
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160 | Enumeration entries = file.entries();
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161 | ZipEntry xmlEntry=null, dirEntry=null; |
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162 | // search for theme.xml and the directory names
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163 | while (entries.hasMoreElements() && (xmlEntry==null||dirEntry==null)) { |
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164 | ZipEntry entry = (ZipEntry) entries.nextElement(); |
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165 | if (entry.isDirectory()) {
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166 | dirEntry = entry; |
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167 | } |
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168 | if (entry.getName().equals(themeDefinitionFile)) {
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169 | xmlEntry = entry; |
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170 | } |
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171 | } |
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172 | |||
173 | try {
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174 | // try with the XML file
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175 | if (xmlEntry!=null) { |
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176 | themeInfo = readXML(file.getInputStream(xmlEntry)); |
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177 | themeInfo.setResource(zipFile); |
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178 | } |
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179 | } catch (XmlPullParserException e) {}
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180 | |||
181 | themeInfo = new IconThemeInfo();
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182 | themeInfo.setResource(zipFile); |
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183 | // now try with the directory
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184 | if (dirEntry!=null) { |
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185 | |||
186 | themeInfo.setName(dirEntry.getName()); |
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187 | themeInfo.setDescription(dirEntry.getName()); |
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188 | return themeInfo;
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189 | } |
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190 | else { // otherwise just use the zipName |
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191 | themeInfo.setName(zipFile.getName()); |
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192 | themeInfo.setDescription(zipFile.getName()); |
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193 | return themeInfo;
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194 | } |
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195 | |||
196 | } catch (ZipException e) { |
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197 | // TODO Auto-generated catch block
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198 | e.printStackTrace(); |
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199 | } catch (IOException e) { |
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200 | // TODO Auto-generated catch block
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201 | e.printStackTrace(); |
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202 | } |
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203 | return null; |
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204 | } |
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205 | |||
206 | |||
207 | } |