source: josm/trunk/src/org/openstreetmap/josm/gui/mappaint/xml/XmlStyleSource.java@ 8509

Last change on this file since 8509 was 8509, checked in by Don-vip, 9 years ago

fix many checkstyle violations
  • Property svn:eol-style set to native
File size: 15.1 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 */
143 private boolean requiresUpdate(Prototype current, Prototype candidate, Double scale, MultiCascade mc) {
144 if (current == null || candidate.priority >= current.priority) {
145 if (scale == null)
146 return true;
147
148 if (candidate.range.contains(scale)) {
149 mc.range = Range.cut(mc.range, candidate.range);
150 return true;
151 } else {
152 mc.range = mc.range.reduceAround(scale, candidate.range);
153 return false;
154 }
155 }
156 return false;
157 }
158
159 private IconPrototype getNode(OsmPrimitive primitive, Double scale, MultiCascade mc) {
160 IconPrototype icon = null;
161 for (String key : primitive.keySet()) {
162 String val = primitive.get(key);
163 IconPrototype p;
164 if ((p = icons.get("n" + key + "=" + val)) != null) {
165 icon = update(icon, p, scale, mc);
166 }
167 if ((p = icons.get("b" + key + "=" + OsmUtils.getNamedOsmBoolean(val))) != null) {
168 icon = update(icon, p, scale, mc);
169 }
170 if ((p = icons.get("x" + key)) != null) {
171 icon = update(icon, p, scale, mc);
172 }
173 }
174 for (IconPrototype s : iconsList) {
175 if (s.check(primitive)) {
176 icon = update(icon, s, scale, mc);
177 }
178 }
179 return icon;
180 }
181
182 /**
183 * @param closed The primitive is a closed way or we pretend it is closed.
184 * This is useful for multipolygon relations and outer ways of untagged
185 * multipolygon relations.
186 */
187 private void get(OsmPrimitive primitive, boolean closed, WayPrototypesRecord p, Double scale, MultiCascade mc) {
188 String lineIdx = null;
189 Map<String, LinemodPrototype> overlayMap = new HashMap<>();
190 boolean isNotArea = primitive.isKeyFalse("area");
191 for (String key : primitive.keySet()) {
192 String val = primitive.get(key);
193 AreaPrototype styleArea;
194 LinePrototype styleLine;
195 LinemodPrototype styleLinemod;
196 String idx = "n" + key + "=" + val;
197 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
198 p.area = update(p.area, styleArea, scale, mc);
199 }
200 if ((styleLine = lines.get(idx)) != null) {
201 if (requiresUpdate(p.line, styleLine, scale, mc)) {
202 p.line = styleLine;
203 lineIdx = idx;
204 }
205 }
206 if ((styleLinemod = modifiers.get(idx)) != null) {
207 if (requiresUpdate(null, styleLinemod, scale, mc)) {
208 overlayMap.put(idx, styleLinemod);
209 }
210 }
211 idx = "b" + key + "=" + OsmUtils.getNamedOsmBoolean(val);
212 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
213 p.area = update(p.area, styleArea, scale, mc);
214 }
215 if ((styleLine = lines.get(idx)) != null) {
216 if (requiresUpdate(p.line, styleLine, scale, mc)) {
217 p.line = styleLine;
218 lineIdx = idx;
219 }
220 }
221 if ((styleLinemod = modifiers.get(idx)) != null) {
222 if (requiresUpdate(null, styleLinemod, scale, mc)) {
223 overlayMap.put(idx, styleLinemod);
224 }
225 }
226 idx = "x" + key;
227 if ((styleArea = areas.get(idx)) != null && (closed || !styleArea.closed) && !isNotArea) {
228 p.area = update(p.area, styleArea, scale, mc);
229 }
230 if ((styleLine = lines.get(idx)) != null) {
231 if (requiresUpdate(p.line, styleLine, scale, mc)) {
232 p.line = styleLine;
233 lineIdx = idx;
234 }
235 }
236 if ((styleLinemod = modifiers.get(idx)) != null) {
237 if (requiresUpdate(null, styleLinemod, scale, mc)) {
238 overlayMap.put(idx, styleLinemod);
239 }
240 }
241 }
242 for (AreaPrototype s : areasList) {
243 if ((closed || !s.closed) && !isNotArea && s.check(primitive)) {
244 p.area = update(p.area, s, scale, mc);
245 }
246 }
247 for (LinePrototype s : linesList) {
248 if (s.check(primitive)) {
249 p.line = update(p.line, s, scale, mc);
250 }
251 }
252 for (LinemodPrototype s : modifiersList) {
253 if (s.check(primitive)) {
254 if (requiresUpdate(null, s, scale, mc)) {
255 overlayMap.put(s.getCode(), s);
256 }
257 }
258 }
259 overlayMap.remove(lineIdx); // do not use overlay if linestyle is from the same rule (example: railway=tram)
260 if (!overlayMap.isEmpty()) {
261 List<LinemodPrototype> tmp = new LinkedList<>();
262 if (p.linemods != null) {
263 tmp.addAll(p.linemods);
264 }
265 tmp.addAll(overlayMap.values());
266 Collections.sort(tmp);
267 p.linemods = tmp;
268 }
269 }
270
271 public void add(XmlCondition c, Collection<XmlCondition> conditions, Prototype prot) {
272 if(conditions != null) {
273 prot.conditions = conditions;
274 if (prot instanceof IconPrototype) {
275 iconsList.add((IconPrototype) prot);
276 } else if (prot instanceof LinemodPrototype) {
277 modifiersList.add((LinemodPrototype) prot);
278 } else if (prot instanceof LinePrototype) {
279 linesList.add((LinePrototype) prot);
280 } else if (prot instanceof AreaPrototype) {
281 areasList.add((AreaPrototype) prot);
282 } else
283 throw new RuntimeException();
284 } else {
285 String key = c.getKey();
286 prot.code = key;
287 if (prot instanceof IconPrototype) {
288 icons.put(key, (IconPrototype) prot);
289 } else if (prot instanceof LinemodPrototype) {
290 modifiers.put(key, (LinemodPrototype) prot);
291 } else if (prot instanceof LinePrototype) {
292 lines.put(key, (LinePrototype) prot);
293 } else if (prot instanceof AreaPrototype) {
294 areas.put(key, (AreaPrototype) prot);
295 } else
296 throw new RuntimeException();
297 }
298 }
299
300 @Override
301 public void apply(MultiCascade mc, OsmPrimitive osm, double scale, boolean pretendWayIsClosed) {
302 Cascade def = mc.getOrCreateCascade("default");
303 boolean useMinMaxScale = Main.pref.getBoolean("mappaint.zoomLevelDisplay", false);
304
305 if (osm instanceof Node || (osm instanceof Relation && "restriction".equals(osm.get("type")))) {
306 IconPrototype icon = getNode(osm, useMinMaxScale ? scale : null, mc);
307 if (icon != null) {
308 def.put(ICON_IMAGE, icon.icon);
309 if (osm instanceof Node) {
310 if (icon.annotate != null) {
311 if (icon.annotate) {
312 def.put(TEXT, Keyword.AUTO);
313 } else {
314 def.remove(TEXT);
315 }
316 }
317 }
318 }
319 } else if (osm instanceof Way || (osm instanceof Relation && ((Relation)osm).isMultipolygon())) {
320 WayPrototypesRecord p = new WayPrototypesRecord();
321 get(osm, pretendWayIsClosed || !(osm instanceof Way) || ((Way) osm).isClosed(), p, useMinMaxScale ? scale : null, mc);
322 if (p.line != null) {
323 def.put(WIDTH, new Float(p.line.getWidth()));
324 def.putOrClear(REAL_WIDTH, p.line.realWidth != null ? new Float(p.line.realWidth) : null);
325 def.putOrClear(COLOR, p.line.color);
326 if (p.line.color != null) {
327 int alpha = p.line.color.getAlpha();
328 if (alpha != 255) {
329 def.put(OPACITY, Utils.color_int2float(alpha));
330 }
331 }
332 def.putOrClear(DASHES, p.line.getDashed());
333 def.putOrClear(DASHES_BACKGROUND_COLOR, p.line.dashedColor);
334 }
335 Float refWidth = def.get(WIDTH, null, Float.class);
336 if (refWidth != null && p.linemods != null) {
337 int numOver = 0, numUnder = 0;
338
339 while (mc.hasLayer(String.format("over_%d", ++numOver)));
340 while (mc.hasLayer(String.format("under_%d", ++numUnder)));
341
342 for (LinemodPrototype mod : p.linemods) {
343 Cascade c;
344 if (mod.over) {
345 String layer = String.format("over_%d", numOver);
346 c = mc.getOrCreateCascade(layer);
347 c.put(OBJECT_Z_INDEX, new Float(numOver));
348 ++numOver;
349 } else {
350 String layer = String.format("under_%d", numUnder);
351 c = mc.getOrCreateCascade(layer);
352 c.put(OBJECT_Z_INDEX, new Float(-numUnder));
353 ++numUnder;
354 }
355 c.put(WIDTH, new Float(mod.getWidth(refWidth)));
356 c.putOrClear(COLOR, mod.color);
357 if (mod.color != null) {
358 int alpha = mod.color.getAlpha();
359 if (alpha != 255) {
360 c.put(OPACITY, Utils.color_int2float(alpha));
361 }
362 }
363 c.putOrClear(DASHES, mod.getDashed());
364 c.putOrClear(DASHES_BACKGROUND_COLOR, mod.dashedColor);
365 }
366 }
367 if (p.area != null) {
368 def.putOrClear(FILL_COLOR, p.area.color);
369 def.putOrClear(TEXT_POSITION, Keyword.CENTER);
370 def.putOrClear(TEXT, Keyword.AUTO);
371 def.remove(FILL_IMAGE);
372 }
373 }
374 }
375}
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