source: josm/trunk/src/org/openstreetmap/josm/gui/mappaint/xml/XmlStyleSource.java@ 9239

Last change on this file since 9239 was 9239, checked in by Don-vip, 8 years ago

javadoc update
  • Property svn:eol-style set to native
File size: 15.2 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.gui.mappaint.xml;
3
4import static org.openstreetmap.josm.tools.I18n.tr;
5
6import java.io.IOException;
7import java.io.InputStream;
8import java.io.InputStreamReader;
9import java.nio.charset.StandardCharsets;
10import java.util.Collection;
11import java.util.Collections;
12import java.util.HashMap;
13import java.util.LinkedList;
14import java.util.List;
15import java.util.Map;
16
17import org.openstreetmap.josm.Main;
18import org.openstreetmap.josm.data.osm.Node;
19import org.openstreetmap.josm.data.osm.OsmPrimitive;
20import org.openstreetmap.josm.data.osm.OsmUtils;
21import org.openstreetmap.josm.data.osm.Relation;
22import org.openstreetmap.josm.data.osm.Way;
23import org.openstreetmap.josm.gui.mappaint.Cascade;
24import org.openstreetmap.josm.gui.mappaint.Keyword;
25import org.openstreetmap.josm.gui.mappaint.MultiCascade;
26import org.openstreetmap.josm.gui.mappaint.Range;
27import org.openstreetmap.josm.gui.mappaint.StyleKeys;
28import org.openstreetmap.josm.gui.mappaint.StyleSource;
29import org.openstreetmap.josm.gui.preferences.SourceEntry;
30import org.openstreetmap.josm.io.CachedFile;
31import org.openstreetmap.josm.tools.Utils;
32import org.openstreetmap.josm.tools.XmlObjectParser;
33import org.xml.sax.SAXException;
34import org.xml.sax.SAXParseException;
35
36public class XmlStyleSource extends StyleSource implements StyleKeys {
37
38 /**
39 * The accepted MIME types sent in the HTTP Accept header.
40 * @since 6867
41 */
42 public static final String XML_STYLE_MIME_TYPES =
43 "application/xml, text/xml, text/plain; q=0.8, application/zip, application/octet-stream; q=0.5";
44
45 protected final Map<String, IconPrototype> icons = new HashMap<>();
46 protected final Map<String, LinePrototype> lines = new HashMap<>();
47 protected final Map<String, LinemodPrototype> modifiers = new HashMap<>();
48 protected final Map<String, AreaPrototype> areas = new HashMap<>();
49 protected final List<IconPrototype> iconsList = new LinkedList<>();
50 protected final List<LinePrototype> linesList = new LinkedList<>();
51 protected final List<LinemodPrototype> modifiersList = new LinkedList<>();
52 protected final List<AreaPrototype> areasList = new LinkedList<>();
53
54 public XmlStyleSource(String url, String name, String shortdescription) {
55 super(url, name, shortdescription);
56 }
57
58 public XmlStyleSource(SourceEntry entry) {
59 super(entry);
60 }
61
62 @Override
63 protected void init() {
64 super.init();
65 icons.clear();
66 lines.clear();
67 modifiers.clear();
68 areas.clear();
69 iconsList.clear();
70 linesList.clear();
71 modifiersList.clear();
72 areasList.clear();
73 }
74
75 @Override
76 public void loadStyleSource() {
77 init();
78 try {
79 try (
80 InputStream in = getSourceInputStream();
81 InputStreamReader reader = new InputStreamReader(in, StandardCharsets.UTF_8)
82 ) {
83 XmlObjectParser parser = new XmlObjectParser(new XmlStyleSourceHandler(this));
84 parser.startWithValidation(reader,
85 Main.getXMLBase()+"/mappaint-style-1.0",
86 "resource://data/mappaint-style.xsd");
87 while (parser.hasNext());
88 }
89 } catch (IOException e) {
90 Main.warn(tr("Failed to load Mappaint styles from ''{0}''. Exception was: {1}", url, e.toString()));
91 Main.error(e);
92 logError(e);
93 } catch (SAXParseException e) {
94 Main.warn(tr("Failed to parse Mappaint styles from ''{0}''. Error was: [{1}:{2}] {3}",
95 url, e.getLineNumber(), e.getColumnNumber(), e.getMessage()));
96 Main.error(e);
97 logError(e);
98 } catch (SAXException e) {
99 Main.warn(tr("Failed to parse Mappaint styles from ''{0}''. Error was: {1}", url, e.getMessage()));
100 Main.error(e);
101 logError(e);
102 }
103 }
104
105 @Override
106 public InputStream getSourceInputStream() throws IOException {
107 CachedFile cf = getCachedFile();
108 InputStream zip = cf.findZipEntryInputStream("xml", "style");
109 if (zip != null) {
110 zipIcons = cf.getFile();
111 return zip;
112 } else {
113 zipIcons = null;
114 return cf.getInputStream();
115 }
116 }
117
118 @Override
119 public CachedFile getCachedFile() throws IOException {
120 return new CachedFile(url).setHttpAccept(XML_STYLE_MIME_TYPES);
121 }
122
123 private static class WayPrototypesRecord {
124 public LinePrototype line;
125 public List<LinemodPrototype> linemods;
126 public AreaPrototype area;
127 }
128
129 private <T extends Prototype> T update(T current, T candidate, Double scale, MultiCascade mc) {
130 if (requiresUpdate(current, candidate, scale, mc))
131 return candidate;
132 else
133 return current;
134 }
135
136 /**
137 * checks whether a certain match is better than the current match
138 * @param current can be null
139 * @param candidate the new Prototype that could be used instead
140 * @param scale ignored if null, otherwise checks if scale is within the range of candidate
141 * @param mc side effect: update the valid region for the current MultiCascade
142 * @return {@code true} if {@code candidate} is better than the current match
143 */
144 private static boolean requiresUpdate(Prototype current, Prototype candidate, Double scale, MultiCascade mc) {
145 if (current == null || candidate.priority >= current.priority) {
146 if (scale == null)
147 return true;
148
149 if (candidate.range.contains(scale)) {
150 mc.range = Range.cut(mc.range, candidate.range);
151 return true;
152 } else {
153 mc.range = mc.range.reduceAround(scale, candidate.range);
154 return false;
155 }
156 }
157 return false;
158 }
159
160 private IconPrototype getNode(OsmPrimitive primitive, Double scale, MultiCascade mc) {
161 IconPrototype icon = null;
162 for (String key : primitive.keySet()) {
163 String val = primitive.get(key);
164 IconPrototype p;
165 if ((p = icons.get('n' + key + '=' + val)) != null) {
166 icon = update(icon, p, scale, mc);
167 }
168 if ((p = icons.get('b' + key + '=' + OsmUtils.getNamedOsmBoolean(val))) != null) {
169 icon = update(icon, p, scale, mc);
170 }
171 if ((p = icons.get('x' + key)) != null) {
172 icon = update(icon, p, scale, mc);
173 }
174 }
175 for (IconPrototype s : iconsList) {
176 if (s.check(primitive)) {
177 icon = update(icon, s, scale, mc);
178 }
179 }
180 return icon;
181 }
182
183 /**
184 * @param primitive OSM primitive
185 * @param closed The primitive is a closed way or we pretend it is closed.
186 * This is useful for multipolygon relations and outer ways of untagged
187 * multipolygon relations.
188 */
189 private void get(OsmPrimitive primitive, boolean closed, WayPrototypesRecord p, Double scale, MultiCascade mc) {
190 String lineIdx = null;
191 Map<String, LinemodPrototype> overlayMap = new HashMap<>();
192 boolean isNotArea = primitive.isKeyFalse("area");
193 for (String key : primitive.keySet()) {
194 String val = primitive.get(key);
195 AreaPrototype styleArea;
196 LinePrototype styleLine;
197 LinemodPrototype styleLinemod;
198 String idx = 'n' + key + '=' + val;
199 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
200 p.area = update(p.area, styleArea, scale, mc);
201 }
202 if ((styleLine = lines.get(idx)) != null) {
203 if (requiresUpdate(p.line, styleLine, scale, mc)) {
204 p.line = styleLine;
205 lineIdx = idx;
206 }
207 }
208 if ((styleLinemod = modifiers.get(idx)) != null) {
209 if (requiresUpdate(null, styleLinemod, scale, mc)) {
210 overlayMap.put(idx, styleLinemod);
211 }
212 }
213 idx = 'b' + key + '=' + OsmUtils.getNamedOsmBoolean(val);
214 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
215 p.area = update(p.area, styleArea, scale, mc);
216 }
217 if ((styleLine = lines.get(idx)) != null) {
218 if (requiresUpdate(p.line, styleLine, scale, mc)) {
219 p.line = styleLine;
220 lineIdx = idx;
221 }
222 }
223 if ((styleLinemod = modifiers.get(idx)) != null) {
224 if (requiresUpdate(null, styleLinemod, scale, mc)) {
225 overlayMap.put(idx, styleLinemod);
226 }
227 }
228 idx = 'x' + key;
229 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
230 p.area = update(p.area, styleArea, scale, mc);
231 }
232 if ((styleLine = lines.get(idx)) != null) {
233 if (requiresUpdate(p.line, styleLine, scale, mc)) {
234 p.line = styleLine;
235 lineIdx = idx;
236 }
237 }
238 if ((styleLinemod = modifiers.get(idx)) != null) {
239 if (requiresUpdate(null, styleLinemod, scale, mc)) {
240 overlayMap.put(idx, styleLinemod);
241 }
242 }
243 }
244 for (AreaPrototype s : areasList) {
245 if ((closed || !s.closed) && !isNotArea && s.check(primitive)) {
246 p.area = update(p.area, s, scale, mc);
247 }
248 }
249 for (LinePrototype s : linesList) {
250 if (s.check(primitive)) {
251 p.line = update(p.line, s, scale, mc);
252 }
253 }
254 for (LinemodPrototype s : modifiersList) {
255 if (s.check(primitive)) {
256 if (requiresUpdate(null, s, scale, mc)) {
257 overlayMap.put(s.getCode(), s);
258 }
259 }
260 }
261 overlayMap.remove(lineIdx); // do not use overlay if linestyle is from the same rule (example: railway=tram)
262 if (!overlayMap.isEmpty()) {
263 List<LinemodPrototype> tmp = new LinkedList<>();
264 if (p.linemods != null) {
265 tmp.addAll(p.linemods);
266 }
267 tmp.addAll(overlayMap.values());
268 Collections.sort(tmp);
269 p.linemods = tmp;
270 }
271 }
272
273 public void add(XmlCondition c, Collection<XmlCondition> conditions, Prototype prot) {
274 if (conditions != null) {
275 prot.conditions = conditions;
276 if (prot instanceof IconPrototype) {
277 iconsList.add((IconPrototype) prot);
278 } else if (prot instanceof LinemodPrototype) {
279 modifiersList.add((LinemodPrototype) prot);
280 } else if (prot instanceof LinePrototype) {
281 linesList.add((LinePrototype) prot);
282 } else if (prot instanceof AreaPrototype) {
283 areasList.add((AreaPrototype) prot);
284 } else
285 throw new RuntimeException();
286 } else {
287 String key = c.getKey();
288 prot.code = key;
289 if (prot instanceof IconPrototype) {
290 icons.put(key, (IconPrototype) prot);
291 } else if (prot instanceof LinemodPrototype) {
292 modifiers.put(key, (LinemodPrototype) prot);
293 } else if (prot instanceof LinePrototype) {
294 lines.put(key, (LinePrototype) prot);
295 } else if (prot instanceof AreaPrototype) {
296 areas.put(key, (AreaPrototype) prot);
297 } else
298 throw new RuntimeException();
299 }
300 }
301
302 @Override
303 public void apply(MultiCascade mc, OsmPrimitive osm, double scale, boolean pretendWayIsClosed) {
304 Cascade def = mc.getOrCreateCascade("default");
305 boolean useMinMaxScale = Main.pref.getBoolean("mappaint.zoomLevelDisplay", false);
306
307 if (osm instanceof Node || (osm instanceof Relation && "restriction".equals(osm.get("type")))) {
308 IconPrototype icon = getNode(osm, useMinMaxScale ? scale : null, mc);
309 if (icon != null) {
310 def.put(ICON_IMAGE, icon.icon);
311 if (osm instanceof Node) {
312 if (icon.annotate != null) {
313 if (icon.annotate) {
314 def.put(TEXT, Keyword.AUTO);
315 } else {
316 def.remove(TEXT);
317 }
318 }
319 }
320 }
321 } else if (osm instanceof Way || (osm instanceof Relation && ((Relation) osm).isMultipolygon())) {
322 WayPrototypesRecord p = new WayPrototypesRecord();
323 get(osm, pretendWayIsClosed || !(osm instanceof Way) || ((Way) osm).isClosed(), p, useMinMaxScale ? scale : null, mc);
324 if (p.line != null) {
325 def.put(WIDTH, new Float(p.line.getWidth()));
326 def.putOrClear(REAL_WIDTH, p.line.realWidth != null ? new Float(p.line.realWidth) : null);
327 def.putOrClear(COLOR, p.line.color);
328 if (p.line.color != null) {
329 int alpha = p.line.color.getAlpha();
330 if (alpha != 255) {
331 def.put(OPACITY, Utils.color_int2float(alpha));
332 }
333 }
334 def.putOrClear(DASHES, p.line.getDashed());
335 def.putOrClear(DASHES_BACKGROUND_COLOR, p.line.dashedColor);
336 }
337 Float refWidth = def.get(WIDTH, null, Float.class);
338 if (refWidth != null && p.linemods != null) {
339 int numOver = 0, numUnder = 0;
340
341 while (mc.hasLayer(String.format("over_%d", ++numOver)));
342 while (mc.hasLayer(String.format("under_%d", ++numUnder)));
343
344 for (LinemodPrototype mod : p.linemods) {
345 Cascade c;
346 if (mod.over) {
347 String layer = String.format("over_%d", numOver);
348 c = mc.getOrCreateCascade(layer);
349 c.put(OBJECT_Z_INDEX, new Float(numOver));
350 ++numOver;
351 } else {
352 String layer = String.format("under_%d", numUnder);
353 c = mc.getOrCreateCascade(layer);
354 c.put(OBJECT_Z_INDEX, new Float(-numUnder));
355 ++numUnder;
356 }
357 c.put(WIDTH, new Float(mod.getWidth(refWidth)));
358 c.putOrClear(COLOR, mod.color);
359 if (mod.color != null) {
360 int alpha = mod.color.getAlpha();
361 if (alpha != 255) {
362 c.put(OPACITY, Utils.color_int2float(alpha));
363 }
364 }
365 c.putOrClear(DASHES, mod.getDashed());
366 c.putOrClear(DASHES_BACKGROUND_COLOR, mod.dashedColor);
367 }
368 }
369 if (p.area != null) {
370 def.putOrClear(FILL_COLOR, p.area.color);
371 def.putOrClear(TEXT_POSITION, Keyword.CENTER);
372 def.putOrClear(TEXT, Keyword.AUTO);
373 def.remove(FILL_IMAGE);
374 }
375 }
376 }
377}
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