1 | // License: GPL. For details, see LICENSE file.
|
---|
2 | package org.openstreetmap.josm.gui.mappaint.mapcss;
|
---|
3 |
|
---|
4 | import static org.openstreetmap.josm.data.projection.Ellipsoid.WGS84;
|
---|
5 |
|
---|
6 | import java.util.Collection;
|
---|
7 | import java.util.Collections;
|
---|
8 | import java.util.List;
|
---|
9 | import java.util.NoSuchElementException;
|
---|
10 | import java.util.Set;
|
---|
11 | import java.util.function.IntFunction;
|
---|
12 | import java.util.function.IntSupplier;
|
---|
13 | import java.util.regex.PatternSyntaxException;
|
---|
14 |
|
---|
15 | import org.openstreetmap.josm.Main;
|
---|
16 | import org.openstreetmap.josm.data.osm.Node;
|
---|
17 | import org.openstreetmap.josm.data.osm.OsmPrimitive;
|
---|
18 | import org.openstreetmap.josm.data.osm.OsmPrimitiveType;
|
---|
19 | import org.openstreetmap.josm.data.osm.Relation;
|
---|
20 | import org.openstreetmap.josm.data.osm.RelationMember;
|
---|
21 | import org.openstreetmap.josm.data.osm.Way;
|
---|
22 | import org.openstreetmap.josm.data.osm.visitor.AbstractVisitor;
|
---|
23 | import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
|
---|
24 | import org.openstreetmap.josm.gui.mappaint.Environment;
|
---|
25 | import org.openstreetmap.josm.gui.mappaint.Range;
|
---|
26 | import org.openstreetmap.josm.gui.mappaint.mapcss.ConditionFactory.OpenEndPseudoClassCondition;
|
---|
27 | import org.openstreetmap.josm.tools.CheckParameterUtil;
|
---|
28 | import org.openstreetmap.josm.tools.Geometry;
|
---|
29 | import org.openstreetmap.josm.tools.Pair;
|
---|
30 | import org.openstreetmap.josm.tools.SubclassFilteredCollection;
|
---|
31 | import org.openstreetmap.josm.tools.Utils;
|
---|
32 |
|
---|
33 | /**
|
---|
34 | * MapCSS selector.
|
---|
35 | *
|
---|
36 | * A rule has two parts, a selector and a declaration block
|
---|
37 | * e.g.
|
---|
38 | * <pre>
|
---|
39 | * way[highway=residential]
|
---|
40 | * { width: 10; color: blue; }
|
---|
41 | * </pre>
|
---|
42 | *
|
---|
43 | * The selector decides, if the declaration block gets applied or not.
|
---|
44 | *
|
---|
45 | * All implementing classes of Selector are immutable.
|
---|
46 | */
|
---|
47 | public interface Selector {
|
---|
48 |
|
---|
49 | /**
|
---|
50 | * Apply the selector to the primitive and check if it matches.
|
---|
51 | *
|
---|
52 | * @param env the Environment. env.mc and env.layer are read-only when matching a selector.
|
---|
53 | * env.source is not needed. This method will set the matchingReferrers field of env as
|
---|
54 | * a side effect! Make sure to clear it before invoking this method.
|
---|
55 | * @return true, if the selector applies
|
---|
56 | */
|
---|
57 | boolean matches(Environment env);
|
---|
58 |
|
---|
59 | /**
|
---|
60 | * Returns the subpart, if supported. A subpart identifies different rendering layers (<code>::subpart</code> syntax).
|
---|
61 | * @return the subpart, if supported
|
---|
62 | * @throws UnsupportedOperationException if not supported
|
---|
63 | */
|
---|
64 | Subpart getSubpart();
|
---|
65 |
|
---|
66 | /**
|
---|
67 | * Returns the scale range, an interval of the form "lower < x <= upper" where 0 <= lower < upper.
|
---|
68 | * @return the scale range, if supported
|
---|
69 | * @throws UnsupportedOperationException if not supported
|
---|
70 | */
|
---|
71 | Range getRange();
|
---|
72 |
|
---|
73 | /**
|
---|
74 | * Create an "optimized" copy of this selector that omits the base check.
|
---|
75 | *
|
---|
76 | * For the style source, the list of rules is preprocessed, such that
|
---|
77 | * there is a separate list of rules for nodes, ways, ...
|
---|
78 | *
|
---|
79 | * This means that the base check does not have to be performed
|
---|
80 | * for each rule, but only once for each primitive.
|
---|
81 | *
|
---|
82 | * @return a selector that is identical to this object, except the base of the
|
---|
83 | * "rightmost" selector is not checked
|
---|
84 | */
|
---|
85 | Selector optimizedBaseCheck();
|
---|
86 |
|
---|
87 | /**
|
---|
88 | * The type of child of parent selector.
|
---|
89 | * @see ChildOrParentSelector
|
---|
90 | */
|
---|
91 | enum ChildOrParentSelectorType {
|
---|
92 | CHILD, PARENT, ELEMENT_OF, CROSSING, SIBLING
|
---|
93 | }
|
---|
94 |
|
---|
95 | /**
|
---|
96 | * <p>Represents a child selector or a parent selector.</p>
|
---|
97 | *
|
---|
98 | * <p>In addition to the standard CSS notation for child selectors, JOSM also supports
|
---|
99 | * an "inverse" notation:</p>
|
---|
100 | * <pre>
|
---|
101 | * selector_a > selector_b { ... } // the standard notation (child selector)
|
---|
102 | * relation[type=route] > way { ... } // example (all ways of a route)
|
---|
103 | *
|
---|
104 | * selector_a < selector_b { ... } // the inverse notation (parent selector)
|
---|
105 | * node[traffic_calming] < way { ... } // example (way that has a traffic calming node)
|
---|
106 | * </pre>
|
---|
107 | * <p>Child: see <a href="https://josm.openstreetmap.de/wiki/Help/Styles/MapCSSImplementation#Childselector">wiki</a>
|
---|
108 | * <br>Parent: see <a href="https://josm.openstreetmap.de/wiki/Help/Styles/MapCSSImplementation#Parentselector">wiki</a></p>
|
---|
109 | */
|
---|
110 | class ChildOrParentSelector implements Selector {
|
---|
111 | public final Selector left;
|
---|
112 | public final LinkSelector link;
|
---|
113 | public final Selector right;
|
---|
114 | public final ChildOrParentSelectorType type;
|
---|
115 |
|
---|
116 | /**
|
---|
117 | * Constructs a new {@code ChildOrParentSelector}.
|
---|
118 | * @param a the first selector
|
---|
119 | * @param link link
|
---|
120 | * @param b the second selector
|
---|
121 | * @param type the selector type
|
---|
122 | */
|
---|
123 | public ChildOrParentSelector(Selector a, LinkSelector link, Selector b, ChildOrParentSelectorType type) {
|
---|
124 | CheckParameterUtil.ensureParameterNotNull(a, "a");
|
---|
125 | CheckParameterUtil.ensureParameterNotNull(b, "b");
|
---|
126 | CheckParameterUtil.ensureParameterNotNull(link, "link");
|
---|
127 | CheckParameterUtil.ensureParameterNotNull(type, "type");
|
---|
128 | this.left = a;
|
---|
129 | this.link = link;
|
---|
130 | this.right = b;
|
---|
131 | this.type = type;
|
---|
132 | }
|
---|
133 |
|
---|
134 | /**
|
---|
135 | * <p>Finds the first referrer matching {@link #left}</p>
|
---|
136 | *
|
---|
137 | * <p>The visitor works on an environment and it saves the matching
|
---|
138 | * referrer in {@code e.parent} and its relative position in the
|
---|
139 | * list referrers "child list" in {@code e.index}.</p>
|
---|
140 | *
|
---|
141 | * <p>If after execution {@code e.parent} is null, no matching
|
---|
142 | * referrer was found.</p>
|
---|
143 | *
|
---|
144 | */
|
---|
145 | private class MatchingReferrerFinder extends AbstractVisitor {
|
---|
146 | private final Environment e;
|
---|
147 |
|
---|
148 | /**
|
---|
149 | * Constructor
|
---|
150 | * @param e the environment against which we match
|
---|
151 | */
|
---|
152 | MatchingReferrerFinder(Environment e) {
|
---|
153 | this.e = e;
|
---|
154 | }
|
---|
155 |
|
---|
156 | @Override
|
---|
157 | public void visit(Node n) {
|
---|
158 | // node should never be a referrer
|
---|
159 | throw new AssertionError();
|
---|
160 | }
|
---|
161 |
|
---|
162 | private <T extends OsmPrimitive> void doVisit(T parent, IntSupplier counter, IntFunction<OsmPrimitive> getter) {
|
---|
163 | // If e.parent is already set to the first matching referrer.
|
---|
164 | // We skip any following referrer injected into the visitor.
|
---|
165 | if (e.parent != null) return;
|
---|
166 |
|
---|
167 | if (!left.matches(e.withPrimitive(parent)))
|
---|
168 | return;
|
---|
169 | int count = counter.getAsInt();
|
---|
170 | if (link.conds == null) {
|
---|
171 | // index is not needed, we can avoid the sequential search below
|
---|
172 | e.parent = parent;
|
---|
173 | e.count = count;
|
---|
174 | return;
|
---|
175 | }
|
---|
176 | for (int i = 0; i < count; i++) {
|
---|
177 | if (getter.apply(i).equals(e.osm) && link.matches(e.withParentAndIndexAndLinkContext(parent, i, count))) {
|
---|
178 | e.parent = parent;
|
---|
179 | e.index = i;
|
---|
180 | e.count = count;
|
---|
181 | return;
|
---|
182 | }
|
---|
183 | }
|
---|
184 | }
|
---|
185 |
|
---|
186 | @Override
|
---|
187 | public void visit(Way w) {
|
---|
188 | doVisit(w, w::getNodesCount, w::getNode);
|
---|
189 | }
|
---|
190 |
|
---|
191 | @Override
|
---|
192 | public void visit(Relation r) {
|
---|
193 | doVisit(r, r::getMembersCount, i -> r.getMember(i).getMember());
|
---|
194 | }
|
---|
195 | }
|
---|
196 |
|
---|
197 | private abstract static class AbstractFinder extends AbstractVisitor {
|
---|
198 | protected final Environment e;
|
---|
199 |
|
---|
200 | protected AbstractFinder(Environment e) {
|
---|
201 | this.e = e;
|
---|
202 | }
|
---|
203 |
|
---|
204 | @Override
|
---|
205 | public void visit(Node n) {
|
---|
206 | }
|
---|
207 |
|
---|
208 | @Override
|
---|
209 | public void visit(Way w) {
|
---|
210 | }
|
---|
211 |
|
---|
212 | @Override
|
---|
213 | public void visit(Relation r) {
|
---|
214 | }
|
---|
215 |
|
---|
216 | public void visit(Collection<? extends OsmPrimitive> primitives) {
|
---|
217 | for (OsmPrimitive p : primitives) {
|
---|
218 | if (e.child != null) {
|
---|
219 | // abort if first match has been found
|
---|
220 | break;
|
---|
221 | } else if (isPrimitiveUsable(p)) {
|
---|
222 | p.accept(this);
|
---|
223 | }
|
---|
224 | }
|
---|
225 | }
|
---|
226 |
|
---|
227 | public boolean isPrimitiveUsable(OsmPrimitive p) {
|
---|
228 | return !e.osm.equals(p) && p.isUsable();
|
---|
229 | }
|
---|
230 | }
|
---|
231 |
|
---|
232 | private class MultipolygonOpenEndFinder extends AbstractFinder {
|
---|
233 |
|
---|
234 | @Override
|
---|
235 | public void visit(Way w) {
|
---|
236 | w.visitReferrers(innerVisitor);
|
---|
237 | }
|
---|
238 |
|
---|
239 | MultipolygonOpenEndFinder(Environment e) {
|
---|
240 | super(e);
|
---|
241 | }
|
---|
242 |
|
---|
243 | private final AbstractVisitor innerVisitor = new AbstractFinder(e) {
|
---|
244 | @Override
|
---|
245 | public void visit(Relation r) {
|
---|
246 | if (left.matches(e.withPrimitive(r))) {
|
---|
247 | final List<Node> openEnds = MultipolygonCache.getInstance().get(r).getOpenEnds();
|
---|
248 | final int openEndIndex = openEnds.indexOf(e.osm);
|
---|
249 | if (openEndIndex >= 0) {
|
---|
250 | e.parent = r;
|
---|
251 | e.index = openEndIndex;
|
---|
252 | e.count = openEnds.size();
|
---|
253 | }
|
---|
254 | }
|
---|
255 | }
|
---|
256 | };
|
---|
257 | }
|
---|
258 |
|
---|
259 | private final class CrossingFinder extends AbstractFinder {
|
---|
260 | private CrossingFinder(Environment e) {
|
---|
261 | super(e);
|
---|
262 | CheckParameterUtil.ensureThat(e.osm instanceof Way, "Only ways are supported");
|
---|
263 | }
|
---|
264 |
|
---|
265 | @Override
|
---|
266 | public void visit(Way w) {
|
---|
267 | if (e.child == null && left.matches(new Environment(w).withParent(e.osm))
|
---|
268 | && e.osm instanceof Way && Geometry.PolygonIntersection.CROSSING.equals(
|
---|
269 | Geometry.polygonIntersection(w.getNodes(), ((Way) e.osm).getNodes()))) {
|
---|
270 | e.child = w;
|
---|
271 | }
|
---|
272 | }
|
---|
273 | }
|
---|
274 |
|
---|
275 | private class ContainsFinder extends AbstractFinder {
|
---|
276 | protected ContainsFinder(Environment e) {
|
---|
277 | super(e);
|
---|
278 | CheckParameterUtil.ensureThat(!(e.osm instanceof Node), "Nodes not supported");
|
---|
279 | }
|
---|
280 |
|
---|
281 | @Override
|
---|
282 | public void visit(Node n) {
|
---|
283 | if (e.child == null && left.matches(new Environment(n).withParent(e.osm))
|
---|
284 | && ((e.osm instanceof Way && Geometry.nodeInsidePolygon(n, ((Way) e.osm).getNodes()))
|
---|
285 | || (e.osm instanceof Relation && (
|
---|
286 | (Relation) e.osm).isMultipolygon() && Geometry.isNodeInsideMultiPolygon(n, (Relation) e.osm, null)))) {
|
---|
287 | e.child = n;
|
---|
288 | }
|
---|
289 | }
|
---|
290 |
|
---|
291 | @Override
|
---|
292 | public void visit(Way w) {
|
---|
293 | if (e.child == null && left.matches(new Environment(w).withParent(e.osm))
|
---|
294 | && ((e.osm instanceof Way && Geometry.PolygonIntersection.FIRST_INSIDE_SECOND.equals(
|
---|
295 | Geometry.polygonIntersection(w.getNodes(), ((Way) e.osm).getNodes())))
|
---|
296 | || (e.osm instanceof Relation && (
|
---|
297 | (Relation) e.osm).isMultipolygon()
|
---|
298 | && Geometry.isPolygonInsideMultiPolygon(w.getNodes(), (Relation) e.osm, null)))) {
|
---|
299 | e.child = w;
|
---|
300 | }
|
---|
301 | }
|
---|
302 | }
|
---|
303 |
|
---|
304 | @Override
|
---|
305 | public boolean matches(Environment e) {
|
---|
306 |
|
---|
307 | if (!right.matches(e))
|
---|
308 | return false;
|
---|
309 |
|
---|
310 | if (ChildOrParentSelectorType.ELEMENT_OF.equals(type)) {
|
---|
311 |
|
---|
312 | if (e.osm instanceof Node || e.osm.getDataSet() == null) {
|
---|
313 | // nodes cannot contain elements
|
---|
314 | return false;
|
---|
315 | }
|
---|
316 |
|
---|
317 | ContainsFinder containsFinder;
|
---|
318 | try {
|
---|
319 | // if right selector also matches relations and if matched primitive is a way which is part of a multipolygon,
|
---|
320 | // use the multipolygon for further analysis
|
---|
321 | if (!(e.osm instanceof Way)
|
---|
322 | || (right instanceof OptimizedGeneralSelector
|
---|
323 | && !((OptimizedGeneralSelector) right).matchesBase(OsmPrimitiveType.RELATION))) {
|
---|
324 | throw new NoSuchElementException();
|
---|
325 | }
|
---|
326 | final Collection<Relation> multipolygons = Utils.filteredCollection(SubclassFilteredCollection.filter(
|
---|
327 | e.osm.getReferrers(), p -> p.hasTag("type", "multipolygon")), Relation.class);
|
---|
328 | final Relation multipolygon = multipolygons.iterator().next();
|
---|
329 | if (multipolygon == null) throw new NoSuchElementException();
|
---|
330 | final Set<OsmPrimitive> members = multipolygon.getMemberPrimitives();
|
---|
331 | containsFinder = new ContainsFinder(new Environment(multipolygon)) {
|
---|
332 | @Override
|
---|
333 | public boolean isPrimitiveUsable(OsmPrimitive p) {
|
---|
334 | return super.isPrimitiveUsable(p) && !members.contains(p);
|
---|
335 | }
|
---|
336 | };
|
---|
337 | } catch (NoSuchElementException ignore) {
|
---|
338 | Main.trace(ignore);
|
---|
339 | containsFinder = new ContainsFinder(e);
|
---|
340 | }
|
---|
341 | e.parent = e.osm;
|
---|
342 |
|
---|
343 | if (left instanceof OptimizedGeneralSelector) {
|
---|
344 | if (((OptimizedGeneralSelector) left).matchesBase(OsmPrimitiveType.NODE)) {
|
---|
345 | containsFinder.visit(e.osm.getDataSet().searchNodes(e.osm.getBBox()));
|
---|
346 | }
|
---|
347 | if (((OptimizedGeneralSelector) left).matchesBase(OsmPrimitiveType.WAY)) {
|
---|
348 | containsFinder.visit(e.osm.getDataSet().searchWays(e.osm.getBBox()));
|
---|
349 | }
|
---|
350 | } else {
|
---|
351 | // use slow test
|
---|
352 | containsFinder.visit(e.osm.getDataSet().allPrimitives());
|
---|
353 | }
|
---|
354 |
|
---|
355 | return e.child != null;
|
---|
356 |
|
---|
357 | } else if (ChildOrParentSelectorType.CROSSING.equals(type) && e.osm instanceof Way) {
|
---|
358 | e.parent = e.osm;
|
---|
359 | final CrossingFinder crossingFinder = new CrossingFinder(e);
|
---|
360 | if (right instanceof OptimizedGeneralSelector
|
---|
361 | && ((OptimizedGeneralSelector) right).matchesBase(OsmPrimitiveType.WAY)) {
|
---|
362 | crossingFinder.visit(e.osm.getDataSet().searchWays(e.osm.getBBox()));
|
---|
363 | }
|
---|
364 | return e.child != null;
|
---|
365 | } else if (ChildOrParentSelectorType.SIBLING.equals(type)) {
|
---|
366 | if (e.osm instanceof Node) {
|
---|
367 | for (Way w : Utils.filteredCollection(e.osm.getReferrers(true), Way.class)) {
|
---|
368 | final int i = w.getNodes().indexOf(e.osm);
|
---|
369 | if (i - 1 >= 0) {
|
---|
370 | final Node n = w.getNode(i - 1);
|
---|
371 | final Environment e2 = e.withPrimitive(n).withParent(w).withChild(e.osm);
|
---|
372 | if (left.matches(e2) && link.matches(e2.withLinkContext())) {
|
---|
373 | e.child = n;
|
---|
374 | e.index = i;
|
---|
375 | e.count = w.getNodesCount();
|
---|
376 | e.parent = w;
|
---|
377 | return true;
|
---|
378 | }
|
---|
379 | }
|
---|
380 | }
|
---|
381 | }
|
---|
382 | } else if (ChildOrParentSelectorType.CHILD.equals(type)
|
---|
383 | && link.conds != null && !link.conds.isEmpty()
|
---|
384 | && link.conds.get(0) instanceof OpenEndPseudoClassCondition) {
|
---|
385 | if (e.osm instanceof Node) {
|
---|
386 | e.osm.visitReferrers(new MultipolygonOpenEndFinder(e));
|
---|
387 | return e.parent != null;
|
---|
388 | }
|
---|
389 | } else if (ChildOrParentSelectorType.CHILD.equals(type)) {
|
---|
390 | MatchingReferrerFinder collector = new MatchingReferrerFinder(e);
|
---|
391 | e.osm.visitReferrers(collector);
|
---|
392 | if (e.parent != null)
|
---|
393 | return true;
|
---|
394 | } else if (ChildOrParentSelectorType.PARENT.equals(type)) {
|
---|
395 | if (e.osm instanceof Way) {
|
---|
396 | List<Node> wayNodes = ((Way) e.osm).getNodes();
|
---|
397 | for (int i = 0; i < wayNodes.size(); i++) {
|
---|
398 | Node n = wayNodes.get(i);
|
---|
399 | if (left.matches(e.withPrimitive(n))
|
---|
400 | && link.matches(e.withChildAndIndexAndLinkContext(n, i, wayNodes.size()))) {
|
---|
401 | e.child = n;
|
---|
402 | e.index = i;
|
---|
403 | e.count = wayNodes.size();
|
---|
404 | return true;
|
---|
405 | }
|
---|
406 | }
|
---|
407 | } else if (e.osm instanceof Relation) {
|
---|
408 | List<RelationMember> members = ((Relation) e.osm).getMembers();
|
---|
409 | for (int i = 0; i < members.size(); i++) {
|
---|
410 | OsmPrimitive member = members.get(i).getMember();
|
---|
411 | if (left.matches(e.withPrimitive(member))
|
---|
412 | && link.matches(e.withChildAndIndexAndLinkContext(member, i, members.size()))) {
|
---|
413 | e.child = member;
|
---|
414 | e.index = i;
|
---|
415 | e.count = members.size();
|
---|
416 | return true;
|
---|
417 | }
|
---|
418 | }
|
---|
419 | }
|
---|
420 | }
|
---|
421 | return false;
|
---|
422 | }
|
---|
423 |
|
---|
424 | @Override
|
---|
425 | public Subpart getSubpart() {
|
---|
426 | return right.getSubpart();
|
---|
427 | }
|
---|
428 |
|
---|
429 | @Override
|
---|
430 | public Range getRange() {
|
---|
431 | return right.getRange();
|
---|
432 | }
|
---|
433 |
|
---|
434 | @Override
|
---|
435 | public Selector optimizedBaseCheck() {
|
---|
436 | return new ChildOrParentSelector(left, link, right.optimizedBaseCheck(), type);
|
---|
437 | }
|
---|
438 |
|
---|
439 | @Override
|
---|
440 | public String toString() {
|
---|
441 | return left.toString() + ' ' + (ChildOrParentSelectorType.PARENT.equals(type) ? '<' : '>') + link + ' ' + right;
|
---|
442 | }
|
---|
443 | }
|
---|
444 |
|
---|
445 | /**
|
---|
446 | * Super class of {@link org.openstreetmap.josm.gui.mappaint.mapcss.Selector.GeneralSelector} and
|
---|
447 | * {@link org.openstreetmap.josm.gui.mappaint.mapcss.Selector.LinkSelector}.
|
---|
448 | * @since 5841
|
---|
449 | */
|
---|
450 | abstract class AbstractSelector implements Selector {
|
---|
451 |
|
---|
452 | protected final List<Condition> conds;
|
---|
453 |
|
---|
454 | protected AbstractSelector(List<Condition> conditions) {
|
---|
455 | if (conditions == null || conditions.isEmpty()) {
|
---|
456 | this.conds = null;
|
---|
457 | } else {
|
---|
458 | this.conds = conditions;
|
---|
459 | }
|
---|
460 | }
|
---|
461 |
|
---|
462 | /**
|
---|
463 | * Determines if all conditions match the given environment.
|
---|
464 | * @param env The environment to check
|
---|
465 | * @return {@code true} if all conditions apply, false otherwise.
|
---|
466 | */
|
---|
467 | @Override
|
---|
468 | public boolean matches(Environment env) {
|
---|
469 | CheckParameterUtil.ensureParameterNotNull(env, "env");
|
---|
470 | if (conds == null) return true;
|
---|
471 | for (Condition c : conds) {
|
---|
472 | try {
|
---|
473 | if (!c.applies(env)) return false;
|
---|
474 | } catch (PatternSyntaxException e) {
|
---|
475 | Main.error(e, "PatternSyntaxException while applying condition" + c + ':');
|
---|
476 | return false;
|
---|
477 | }
|
---|
478 | }
|
---|
479 | return true;
|
---|
480 | }
|
---|
481 |
|
---|
482 | /**
|
---|
483 | * Returns the list of conditions.
|
---|
484 | * @return the list of conditions
|
---|
485 | */
|
---|
486 | public List<Condition> getConditions() {
|
---|
487 | if (conds == null) {
|
---|
488 | return Collections.emptyList();
|
---|
489 | }
|
---|
490 | return Collections.unmodifiableList(conds);
|
---|
491 | }
|
---|
492 | }
|
---|
493 |
|
---|
494 | /**
|
---|
495 | * In a child selector, conditions on the link between a parent and a child object.
|
---|
496 | * See <a href="https://josm.openstreetmap.de/wiki/Help/Styles/MapCSSImplementation#Linkselector">wiki</a>
|
---|
497 | */
|
---|
498 | class LinkSelector extends AbstractSelector {
|
---|
499 |
|
---|
500 | public LinkSelector(List<Condition> conditions) {
|
---|
501 | super(conditions);
|
---|
502 | }
|
---|
503 |
|
---|
504 | @Override
|
---|
505 | public boolean matches(Environment env) {
|
---|
506 | Utils.ensure(env.isLinkContext(), "Requires LINK context in environment, got ''{0}''", env.getContext());
|
---|
507 | return super.matches(env);
|
---|
508 | }
|
---|
509 |
|
---|
510 | @Override
|
---|
511 | public Subpart getSubpart() {
|
---|
512 | throw new UnsupportedOperationException("Not supported yet.");
|
---|
513 | }
|
---|
514 |
|
---|
515 | @Override
|
---|
516 | public Range getRange() {
|
---|
517 | throw new UnsupportedOperationException("Not supported yet.");
|
---|
518 | }
|
---|
519 |
|
---|
520 | @Override
|
---|
521 | public Selector optimizedBaseCheck() {
|
---|
522 | throw new UnsupportedOperationException();
|
---|
523 | }
|
---|
524 |
|
---|
525 | @Override
|
---|
526 | public String toString() {
|
---|
527 | return "LinkSelector{conditions=" + conds + '}';
|
---|
528 | }
|
---|
529 | }
|
---|
530 |
|
---|
531 | /**
|
---|
532 | * General selector. See <a href="https://josm.openstreetmap.de/wiki/Help/Styles/MapCSSImplementation#Selectors">wiki</a>
|
---|
533 | */
|
---|
534 | class GeneralSelector extends OptimizedGeneralSelector {
|
---|
535 |
|
---|
536 | public GeneralSelector(String base, Pair<Integer, Integer> zoom, List<Condition> conds, Subpart subpart) {
|
---|
537 | super(base, zoom, conds, subpart);
|
---|
538 | }
|
---|
539 |
|
---|
540 | public boolean matchesConditions(Environment e) {
|
---|
541 | return super.matches(e);
|
---|
542 | }
|
---|
543 |
|
---|
544 | @Override
|
---|
545 | public Selector optimizedBaseCheck() {
|
---|
546 | return new OptimizedGeneralSelector(this);
|
---|
547 | }
|
---|
548 |
|
---|
549 | @Override
|
---|
550 | public boolean matches(Environment e) {
|
---|
551 | return matchesBase(e) && super.matches(e);
|
---|
552 | }
|
---|
553 | }
|
---|
554 |
|
---|
555 | /**
|
---|
556 | * Superclass of {@link GeneralSelector}. Used to create an "optimized" copy of this selector that omits the base check.
|
---|
557 | * @see Selector#optimizedBaseCheck
|
---|
558 | */
|
---|
559 | class OptimizedGeneralSelector extends AbstractSelector {
|
---|
560 | public final String base;
|
---|
561 | public final Range range;
|
---|
562 | public final Subpart subpart;
|
---|
563 |
|
---|
564 | public OptimizedGeneralSelector(String base, Pair<Integer, Integer> zoom, List<Condition> conds, Subpart subpart) {
|
---|
565 | super(conds);
|
---|
566 | this.base = base;
|
---|
567 | if (zoom != null) {
|
---|
568 | int a = zoom.a == null ? 0 : zoom.a;
|
---|
569 | int b = zoom.b == null ? Integer.MAX_VALUE : zoom.b;
|
---|
570 | if (a <= b) {
|
---|
571 | range = fromLevel(a, b);
|
---|
572 | } else {
|
---|
573 | range = Range.ZERO_TO_INFINITY;
|
---|
574 | }
|
---|
575 | } else {
|
---|
576 | range = Range.ZERO_TO_INFINITY;
|
---|
577 | }
|
---|
578 | this.subpart = subpart != null ? subpart : Subpart.DEFAULT_SUBPART;
|
---|
579 | }
|
---|
580 |
|
---|
581 | public OptimizedGeneralSelector(String base, Range range, List<Condition> conds, Subpart subpart) {
|
---|
582 | super(conds);
|
---|
583 | this.base = base;
|
---|
584 | this.range = range;
|
---|
585 | this.subpart = subpart != null ? subpart : Subpart.DEFAULT_SUBPART;
|
---|
586 | }
|
---|
587 |
|
---|
588 | public OptimizedGeneralSelector(GeneralSelector s) {
|
---|
589 | this(s.base, s.range, s.conds, s.subpart);
|
---|
590 | }
|
---|
591 |
|
---|
592 | @Override
|
---|
593 | public Subpart getSubpart() {
|
---|
594 | return subpart;
|
---|
595 | }
|
---|
596 |
|
---|
597 | @Override
|
---|
598 | public Range getRange() {
|
---|
599 | return range;
|
---|
600 | }
|
---|
601 |
|
---|
602 | public String getBase() {
|
---|
603 | return base;
|
---|
604 | }
|
---|
605 |
|
---|
606 | public boolean matchesBase(OsmPrimitiveType type) {
|
---|
607 | if ("*".equals(base)) {
|
---|
608 | return true;
|
---|
609 | } else if (OsmPrimitiveType.NODE.equals(type)) {
|
---|
610 | return "node".equals(base);
|
---|
611 | } else if (OsmPrimitiveType.WAY.equals(type)) {
|
---|
612 | return "way".equals(base) || "area".equals(base);
|
---|
613 | } else if (OsmPrimitiveType.RELATION.equals(type)) {
|
---|
614 | return "area".equals(base) || "relation".equals(base) || "canvas".equals(base);
|
---|
615 | }
|
---|
616 | return false;
|
---|
617 | }
|
---|
618 |
|
---|
619 | public boolean matchesBase(OsmPrimitive p) {
|
---|
620 | if (!matchesBase(p.getType())) {
|
---|
621 | return false;
|
---|
622 | } else {
|
---|
623 | if (p instanceof Relation) {
|
---|
624 | if ("area".equals(base)) {
|
---|
625 | return ((Relation) p).isMultipolygon();
|
---|
626 | } else if ("canvas".equals(base)) {
|
---|
627 | return p.get("#canvas") != null;
|
---|
628 | }
|
---|
629 | }
|
---|
630 | return true;
|
---|
631 | }
|
---|
632 | }
|
---|
633 |
|
---|
634 | public boolean matchesBase(Environment e) {
|
---|
635 | return matchesBase(e.osm);
|
---|
636 | }
|
---|
637 |
|
---|
638 | @Override
|
---|
639 | public Selector optimizedBaseCheck() {
|
---|
640 | throw new UnsupportedOperationException();
|
---|
641 | }
|
---|
642 |
|
---|
643 | public static Range fromLevel(int a, int b) {
|
---|
644 | if (a > b)
|
---|
645 | throw new AssertionError();
|
---|
646 | double lower = 0;
|
---|
647 | double upper = Double.POSITIVE_INFINITY;
|
---|
648 | if (b != Integer.MAX_VALUE) {
|
---|
649 | lower = level2scale(b + 1);
|
---|
650 | }
|
---|
651 | if (a != 0) {
|
---|
652 | upper = level2scale(a);
|
---|
653 | }
|
---|
654 | return new Range(lower, upper);
|
---|
655 | }
|
---|
656 |
|
---|
657 | public static double level2scale(int lvl) {
|
---|
658 | if (lvl < 0)
|
---|
659 | throw new IllegalArgumentException("lvl must be >= 0 but is "+lvl);
|
---|
660 | // preliminary formula - map such that mapnik imagery tiles of the same
|
---|
661 | // or similar level are displayed at the given scale
|
---|
662 | return 2.0 * Math.PI * WGS84.a / Math.pow(2.0, lvl) / 2.56;
|
---|
663 | }
|
---|
664 |
|
---|
665 | public static int scale2level(double scale) {
|
---|
666 | if (scale < 0)
|
---|
667 | throw new IllegalArgumentException("scale must be >= 0 but is "+scale);
|
---|
668 | return (int) Math.floor(Math.log(2 * Math.PI * WGS84.a / 2.56 / scale) / Math.log(2));
|
---|
669 | }
|
---|
670 |
|
---|
671 | @Override
|
---|
672 | public String toString() {
|
---|
673 | return base + (Range.ZERO_TO_INFINITY.equals(range) ? "" : range) + Utils.join("", conds)
|
---|
674 | + (subpart != null && subpart != Subpart.DEFAULT_SUBPART ? ("::" + subpart) : "");
|
---|
675 | }
|
---|
676 | }
|
---|
677 | }
|
---|