source: josm/trunk/src/org/openstreetmap/josm/data/osm/visitor/paint/StyledMapRenderer.java@ 6830

Last change on this file since 6830 was 6830, checked in by Don-vip, 10 years ago

javadoc fixes for jdk8 compatibility
  • Property svn:eol-style set to native
File size: 53.4 KB
Line 
1// License: GPL. For details, see LICENSE file.
2package org.openstreetmap.josm.data.osm.visitor.paint;
3
4import java.awt.AlphaComposite;
5import java.awt.BasicStroke;
6import java.awt.Color;
7import java.awt.Component;
8import java.awt.Dimension;
9import java.awt.Font;
10import java.awt.FontMetrics;
11import java.awt.Graphics2D;
12import java.awt.Image;
13import java.awt.Point;
14import java.awt.Polygon;
15import java.awt.Rectangle;
16import java.awt.RenderingHints;
17import java.awt.Shape;
18import java.awt.TexturePaint;
19import java.awt.font.FontRenderContext;
20import java.awt.font.GlyphVector;
21import java.awt.font.LineMetrics;
22import java.awt.geom.AffineTransform;
23import java.awt.geom.GeneralPath;
24import java.awt.geom.Path2D;
25import java.awt.geom.Point2D;
26import java.awt.geom.Rectangle2D;
27import java.util.ArrayList;
28import java.util.Collection;
29import java.util.Collections;
30import java.util.Iterator;
31import java.util.List;
32
33import javax.swing.AbstractButton;
34import javax.swing.FocusManager;
35
36import org.openstreetmap.josm.Main;
37import org.openstreetmap.josm.data.Bounds;
38import org.openstreetmap.josm.data.coor.EastNorth;
39import org.openstreetmap.josm.data.osm.BBox;
40import org.openstreetmap.josm.data.osm.DataSet;
41import org.openstreetmap.josm.data.osm.Node;
42import org.openstreetmap.josm.data.osm.OsmPrimitive;
43import org.openstreetmap.josm.data.osm.OsmUtils;
44import org.openstreetmap.josm.data.osm.Relation;
45import org.openstreetmap.josm.data.osm.RelationMember;
46import org.openstreetmap.josm.data.osm.Way;
47import org.openstreetmap.josm.data.osm.WaySegment;
48import org.openstreetmap.josm.data.osm.visitor.paint.relations.Multipolygon;
49import org.openstreetmap.josm.data.osm.visitor.paint.relations.Multipolygon.PolyData;
50import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache;
51import org.openstreetmap.josm.gui.NavigatableComponent;
52import org.openstreetmap.josm.gui.mappaint.AreaElemStyle;
53import org.openstreetmap.josm.gui.mappaint.BoxTextElemStyle;
54import org.openstreetmap.josm.gui.mappaint.BoxTextElemStyle.HorizontalTextAlignment;
55import org.openstreetmap.josm.gui.mappaint.BoxTextElemStyle.VerticalTextAlignment;
56import org.openstreetmap.josm.gui.mappaint.ElemStyle;
57import org.openstreetmap.josm.gui.mappaint.ElemStyles;
58import org.openstreetmap.josm.gui.mappaint.MapImage;
59import org.openstreetmap.josm.gui.mappaint.MapPaintStyles;
60import org.openstreetmap.josm.gui.mappaint.NodeElemStyle;
61import org.openstreetmap.josm.gui.mappaint.NodeElemStyle.Symbol;
62import org.openstreetmap.josm.gui.mappaint.RepeatImageElemStyle.LineImageAlignment;
63import org.openstreetmap.josm.gui.mappaint.StyleCache.StyleList;
64import org.openstreetmap.josm.gui.mappaint.TextElement;
65import org.openstreetmap.josm.tools.ImageProvider;
66import org.openstreetmap.josm.tools.Utils;
67
68/**
69 * <p>A map renderer which renders a map according to style rules in a set of style sheets.</p>
70 *
71 */
72public class StyledMapRenderer extends AbstractMapRenderer {
73
74 /**
75 * Iterates over a list of Way Nodes and returns screen coordinates that
76 * represent a line that is shifted by a certain offset perpendicular
77 * to the way direction.
78 *
79 * There is no intention, to handle consecutive duplicate Nodes in a
80 * perfect way, but it is should not throw an exception.
81 */
82 private class OffsetIterator implements Iterator<Point> {
83
84 private List<Node> nodes;
85 private float offset;
86 private int idx;
87
88 private Point prev = null;
89 /* 'prev0' is a point that has distance 'offset' from 'prev' and the
90 * line from 'prev' to 'prev0' is perpendicular to the way segment from
91 * 'prev' to the next point.
92 */
93 private int x_prev0, y_prev0;
94
95 public OffsetIterator(List<Node> nodes, float offset) {
96 this.nodes = nodes;
97 this.offset = offset;
98 idx = 0;
99 }
100
101 @Override
102 public boolean hasNext() {
103 return idx < nodes.size();
104 }
105
106 @Override
107 public Point next() {
108 if (Math.abs(offset) < 0.1f) return nc.getPoint(nodes.get(idx++));
109
110 Point current = nc.getPoint(nodes.get(idx));
111
112 if (idx == nodes.size() - 1) {
113 ++idx;
114 return new Point(x_prev0 + current.x - prev.x, y_prev0 + current.y - prev.y);
115 }
116
117 Point next = nc.getPoint(nodes.get(idx+1));
118
119 int dx_next = next.x - current.x;
120 int dy_next = next.y - current.y;
121 double len_next = Math.sqrt(dx_next*dx_next + dy_next*dy_next);
122
123 if (len_next == 0) {
124 len_next = 1; // value does not matter, because dy_next and dx_next is 0
125 }
126
127 int x_current0 = current.x + (int) Math.round(offset * dy_next / len_next);
128 int y_current0 = current.y - (int) Math.round(offset * dx_next / len_next);
129
130 if (idx==0) {
131 ++idx;
132 prev = current;
133 x_prev0 = x_current0;
134 y_prev0 = y_current0;
135 return new Point(x_current0, y_current0);
136 } else {
137 int dx_prev = current.x - prev.x;
138 int dy_prev = current.y - prev.y;
139
140 // determine intersection of the lines parallel to the two
141 // segments
142 int det = dx_next*dy_prev - dx_prev*dy_next;
143
144 if (det == 0) {
145 ++idx;
146 prev = current;
147 x_prev0 = x_current0;
148 y_prev0 = y_current0;
149 return new Point(x_current0, y_current0);
150 }
151
152 int m = dx_next*(y_current0 - y_prev0) - dy_next*(x_current0 - x_prev0);
153
154 int cx_ = x_prev0 + Math.round((float)m * dx_prev / det);
155 int cy_ = y_prev0 + Math.round((float)m * dy_prev / det);
156 ++idx;
157 prev = current;
158 x_prev0 = x_current0;
159 y_prev0 = y_current0;
160 return new Point(cx_, cy_);
161 }
162 }
163
164 @Override
165 public void remove() {
166 throw new UnsupportedOperationException();
167 }
168 }
169
170 private class StyleCollector {
171 private final boolean drawArea;
172 private final boolean drawMultipolygon;
173 private final boolean drawRestriction;
174
175 private final List<StyleRecord> styleElems;
176
177 public StyleCollector(boolean drawArea, boolean drawMultipolygon, boolean drawRestriction) {
178 this.drawArea = drawArea;
179 this.drawMultipolygon = drawMultipolygon;
180 this.drawRestriction = drawRestriction;
181 styleElems = new ArrayList<StyleRecord>();
182 }
183
184 public void add(Node osm, int flags) {
185 StyleList sl = styles.get(osm, circum, nc);
186 for (ElemStyle s : sl) {
187 styleElems.add(new StyleRecord(s, osm, flags));
188 }
189 }
190
191 public void add(Relation osm, int flags) {
192 StyleList sl = styles.get(osm, circum, nc);
193 for (ElemStyle s : sl) {
194 if (drawMultipolygon && drawArea && s instanceof AreaElemStyle && (flags & FLAG_DISABLED) == 0) {
195 styleElems.add(new StyleRecord(s, osm, flags));
196 } else if (drawRestriction && s instanceof NodeElemStyle) {
197 styleElems.add(new StyleRecord(s, osm, flags));
198 }
199 }
200 }
201
202 public void add(Way osm, int flags) {
203 StyleList sl = styles.get(osm, circum, nc);
204 for (ElemStyle s : sl) {
205 if (!(drawArea && (flags & FLAG_DISABLED) == 0) && s instanceof AreaElemStyle) {
206 continue;
207 }
208 styleElems.add(new StyleRecord(s, osm, flags));
209 }
210 }
211
212 public void drawAll() {
213 Collections.sort(styleElems);
214 for (StyleRecord r : styleElems) {
215 r.style.paintPrimitive(
216 r.osm,
217 paintSettings,
218 StyledMapRenderer.this,
219 (r.flags & FLAG_SELECTED) != 0,
220 (r.flags & FLAG_MEMBER_OF_SELECTED) != 0
221 );
222 }
223 }
224 }
225
226 private static class StyleRecord implements Comparable<StyleRecord> {
227 final ElemStyle style;
228 final OsmPrimitive osm;
229 final int flags;
230
231 public StyleRecord(ElemStyle style, OsmPrimitive osm, int flags) {
232 this.style = style;
233 this.osm = osm;
234 this.flags = flags;
235 }
236
237 @Override
238 public int compareTo(StyleRecord other) {
239 if ((this.flags & FLAG_DISABLED) != 0 && (other.flags & FLAG_DISABLED) == 0)
240 return -1;
241 if ((this.flags & FLAG_DISABLED) == 0 && (other.flags & FLAG_DISABLED) != 0)
242 return 1;
243
244 int d0 = Float.compare(this.style.major_z_index, other.style.major_z_index);
245 if (d0 != 0)
246 return d0;
247
248 // selected on top of member of selected on top of unselected
249 // FLAG_DISABLED bit is the same at this point
250 if (this.flags > other.flags)
251 return 1;
252 if (this.flags < other.flags)
253 return -1;
254
255 int dz = Float.compare(this.style.z_index, other.style.z_index);
256 if (dz != 0)
257 return dz;
258
259 // simple node on top of icons and shapes
260 if (this.style == NodeElemStyle.SIMPLE_NODE_ELEMSTYLE && other.style != NodeElemStyle.SIMPLE_NODE_ELEMSTYLE)
261 return 1;
262 if (this.style != NodeElemStyle.SIMPLE_NODE_ELEMSTYLE && other.style == NodeElemStyle.SIMPLE_NODE_ELEMSTYLE)
263 return -1;
264
265 // newer primitives to the front
266 long id = this.osm.getUniqueId() - other.osm.getUniqueId();
267 if (id > 0)
268 return 1;
269 if (id < 0)
270 return -1;
271
272 return Float.compare(this.style.object_z_index, other.style.object_z_index);
273 }
274 }
275
276 private static Boolean IS_GLYPH_VECTOR_DOUBLE_TRANSLATION_BUG = null;
277
278 /**
279 * Check, if this System has the GlyphVector double translation bug.
280 *
281 * With this bug, <code>gv.setGlyphTransform(i, trfm)</code> has a different
282 * effect than on most other systems, namely the translation components
283 * ("m02" &amp; "m12", {@link AffineTransform}) appear to be twice as large, as
284 * they actually are. The rotation is unaffected (scale &amp; shear not tested
285 * so far).
286 *
287 * This bug has only been observed on Mac OS X, see #7841.
288 *
289 * @return true, if the GlyphVector double translation bug is present on
290 * this System
291 */
292 public static boolean isGlyphVectorDoubleTranslationBug() {
293 if (IS_GLYPH_VECTOR_DOUBLE_TRANSLATION_BUG != null)
294 return IS_GLYPH_VECTOR_DOUBLE_TRANSLATION_BUG;
295 FontRenderContext frc = new FontRenderContext(null, false, false);
296 Font font = new Font("Dialog", Font.PLAIN, 12);
297 GlyphVector gv = font.createGlyphVector(frc, "x");
298 gv.setGlyphTransform(0, AffineTransform.getTranslateInstance(1000, 1000));
299 Shape shape = gv.getGlyphOutline(0);
300 // x is about 1000 on normal stystems and about 2000 when the bug occurs
301 int x = shape.getBounds().x;
302 IS_GLYPH_VECTOR_DOUBLE_TRANSLATION_BUG = x > 1500;
303 return IS_GLYPH_VECTOR_DOUBLE_TRANSLATION_BUG;
304 }
305
306 private ElemStyles styles;
307 private double circum;
308
309 private MapPaintSettings paintSettings;
310
311 private Color relationSelectedColor;
312 private Color highlightColorTransparent;
313
314 private static final int FLAG_NORMAL = 0;
315 private static final int FLAG_DISABLED = 1;
316 private static final int FLAG_MEMBER_OF_SELECTED = 2;
317 private static final int FLAG_SELECTED = 4;
318
319 private static final double PHI = Math.toRadians(20);
320 private static final double cosPHI = Math.cos(PHI);
321 private static final double sinPHI = Math.sin(PHI);
322
323 private Collection<WaySegment> highlightWaySegments;
324
325 // highlight customization fields
326 private int highlightLineWidth;
327 private int highlightPointRadius;
328 private int widerHighlight;
329 private int highlightStep;
330
331 //flag that activate wider highlight mode
332 private boolean useWiderHighlight;
333
334 private boolean useStrokes;
335 private boolean showNames;
336 private boolean showIcons;
337 private boolean isOutlineOnly;
338
339 private Font orderFont;
340
341 private boolean leftHandTraffic;
342
343 public StyledMapRenderer(Graphics2D g, NavigatableComponent nc, boolean isInactiveMode) {
344 super(g, nc, isInactiveMode);
345
346 if (nc!=null) {
347 Component focusOwner = FocusManager.getCurrentManager().getFocusOwner();
348 useWiderHighlight = !(focusOwner instanceof AbstractButton || focusOwner == nc);
349 }
350 }
351
352 private Polygon buildPolygon(Point center, int radius, int sides) {
353 return buildPolygon(center, radius, sides, 0.0);
354 }
355
356 private Polygon buildPolygon(Point center, int radius, int sides, double rotation) {
357 Polygon polygon = new Polygon();
358 for (int i = 0; i < sides; i++) {
359 double angle = ((2 * Math.PI / sides) * i) - rotation;
360 int x = (int) Math.round(center.x + radius * Math.cos(angle));
361 int y = (int) Math.round(center.y + radius * Math.sin(angle));
362 polygon.addPoint(x, y);
363 }
364 return polygon;
365 }
366
367 private void collectNodeStyles(DataSet data, StyleCollector sc, BBox bbox) {
368 for (final Node n: data.searchNodes(bbox)) {
369 if (n.isDrawable()) {
370 if (n.isDisabled()) {
371 sc.add(n, FLAG_DISABLED);
372 } else if (data.isSelected(n)) {
373 sc.add(n, FLAG_SELECTED);
374 } else if (n.isMemberOfSelected()) {
375 sc.add(n, FLAG_MEMBER_OF_SELECTED);
376 } else {
377 sc.add(n, FLAG_NORMAL);
378 }
379 }
380 }
381 }
382
383 private void collectWayStyles(DataSet data, StyleCollector sc, BBox bbox) {
384 for (final Way w : data.searchWays(bbox)) {
385 if (w.isDrawable()) {
386 if (w.isDisabled()) {
387 sc.add(w, FLAG_DISABLED);
388 } else if (data.isSelected(w)) {
389 sc.add(w, FLAG_SELECTED);
390 } else if (w.isMemberOfSelected()) {
391 sc.add(w, FLAG_MEMBER_OF_SELECTED);
392 } else {
393 sc.add(w, FLAG_NORMAL);
394 }
395 }
396 }
397 }
398
399 private void collectRelationStyles(DataSet data, StyleCollector sc, BBox bbox) {
400 for (Relation r: data.searchRelations(bbox)) {
401 if (r.isDrawable()) {
402 if (r.isDisabled()) {
403 sc.add(r, FLAG_DISABLED);
404 } else if (data.isSelected(r)) {
405 sc.add(r, FLAG_SELECTED);
406 } else {
407 sc.add(r, FLAG_NORMAL);
408 }
409 }
410 }
411 }
412
413 private void displaySegments(GeneralPath path, GeneralPath orientationArrows, GeneralPath onewayArrows, GeneralPath onewayArrowsCasing,
414 Color color, BasicStroke line, BasicStroke dashes, Color dashedColor) {
415 g.setColor(isInactiveMode ? inactiveColor : color);
416 if (useStrokes) {
417 g.setStroke(line);
418 }
419 g.draw(path);
420
421 if(!isInactiveMode && useStrokes && dashes != null) {
422 g.setColor(dashedColor);
423 g.setStroke(dashes);
424 g.draw(path);
425 }
426
427 if (orientationArrows != null) {
428 g.setColor(isInactiveMode ? inactiveColor : color);
429 g.setStroke(new BasicStroke(line.getLineWidth(), line.getEndCap(), BasicStroke.JOIN_MITER, line.getMiterLimit()));
430 g.draw(orientationArrows);
431 }
432
433 if (onewayArrows != null) {
434 g.setStroke(new BasicStroke(1, line.getEndCap(), BasicStroke.JOIN_MITER, line.getMiterLimit()));
435 g.fill(onewayArrowsCasing);
436 g.setColor(isInactiveMode ? inactiveColor : backgroundColor);
437 g.fill(onewayArrows);
438 }
439
440 if (useStrokes) {
441 g.setStroke(new BasicStroke());
442 }
443 }
444
445 /**
446 * Displays text at specified position including its halo, if applicable.
447 *
448 * @param gv Text's glyphs to display. If {@code null}, use text from {@code s} instead.
449 * @param s text to display if {@code gv} is {@code null}
450 * @param x X position
451 * @param y Y position
452 * @param disabled {@code true} if element is disabled (filtered out)
453 * @param text text style to use
454 */
455 private void displayText(GlyphVector gv, String s, int x, int y, boolean disabled, TextElement text) {
456 if (isInactiveMode || disabled) {
457 g.setColor(inactiveColor);
458 if (gv != null) {
459 g.drawGlyphVector(gv, x, y);
460 } else {
461 g.setFont(text.font);
462 g.drawString(s, x, y);
463 }
464 } else if (text.haloRadius != null) {
465 g.setStroke(new BasicStroke(2*text.haloRadius, BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND));
466 g.setColor(text.haloColor);
467 if (gv == null) {
468 FontRenderContext frc = g.getFontRenderContext();
469 gv = text.font.createGlyphVector(frc, s);
470 }
471 Shape textOutline = gv.getOutline(x, y);
472 g.draw(textOutline);
473 g.setStroke(new BasicStroke());
474 g.setColor(text.color);
475 g.fill(textOutline);
476 } else {
477 g.setColor(text.color);
478 if (gv != null) {
479 g.drawGlyphVector(gv, x, y);
480 } else {
481 g.setFont(text.font);
482 g.drawString(s, x, y);
483 }
484 }
485 }
486
487 protected void drawArea(OsmPrimitive osm, Path2D.Double path, Color color, MapImage fillImage, TextElement text) {
488
489 Shape area = path.createTransformedShape(nc.getAffineTransform());
490
491 if (!isOutlineOnly) {
492 if (fillImage == null) {
493 if (isInactiveMode) {
494 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.33f));
495 }
496 g.setColor(color);
497 g.fill(area);
498 } else {
499 TexturePaint texture = new TexturePaint(fillImage.getImage(),
500 new Rectangle(0, 0, fillImage.getWidth(), fillImage.getHeight()));
501 g.setPaint(texture);
502 Float alpha = Utils.color_int2float(fillImage.alpha);
503 if (alpha != 1f) {
504 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
505 }
506 g.fill(area);
507 g.setPaintMode();
508 }
509 }
510
511 if (text != null && isShowNames()) {
512 // abort if we can't compose the label to be rendered
513 if (text.labelCompositionStrategy == null) return;
514 String name = text.labelCompositionStrategy.compose(osm);
515 if (name == null) return;
516
517 Rectangle pb = area.getBounds();
518 FontMetrics fontMetrics = g.getFontMetrics(orderFont); // if slow, use cache
519 Rectangle2D nb = fontMetrics.getStringBounds(name, g); // if slow, approximate by strlen()*maxcharbounds(font)
520
521 // Using the Centroid is Nicer for buildings like: +--------+
522 // but this needs to be fast. As most houses are | 42 |
523 // boxes anyway, the center of the bounding box +---++---+
524 // will have to do. ++
525 // Centroids are not optimal either, just imagine a U-shaped house.
526
527 Rectangle centeredNBounds = new Rectangle(pb.x + (int)((pb.width - nb.getWidth())/2.0),
528 pb.y + (int)((pb.height - nb.getHeight())/2.0),
529 (int)nb.getWidth(),
530 (int)nb.getHeight());
531
532 if ((pb.width >= nb.getWidth() && pb.height >= nb.getHeight()) && // quick check
533 area.contains(centeredNBounds) // slow but nice
534 ) {
535 Font defaultFont = g.getFont();
536 int x = (int)(centeredNBounds.getMinX() - nb.getMinX());
537 int y = (int)(centeredNBounds.getMinY() - nb.getMinY());
538 displayText(null, name, x, y, osm.isDisabled(), text);
539 g.setFont(defaultFont);
540 }
541 }
542 }
543
544 public void drawArea(Relation r, Color color, MapImage fillImage, TextElement text) {
545 Multipolygon multipolygon = MultipolygonCache.getInstance().get(nc, r);
546 if (!r.isDisabled() && !multipolygon.getOuterWays().isEmpty()) {
547 for (PolyData pd : multipolygon.getCombinedPolygons()) {
548 Path2D.Double p = pd.get();
549 if (!isAreaVisible(p)) {
550 continue;
551 }
552 drawArea(r, p,
553 pd.selected ? paintSettings.getRelationSelectedColor(color.getAlpha()) : color,
554 fillImage, text);
555 }
556 }
557 }
558
559 public void drawArea(Way w, Color color, MapImage fillImage, TextElement text) {
560 drawArea(w, getPath(w), color, fillImage, text);
561 }
562
563 public void drawBoxText(Node n, BoxTextElemStyle bs) {
564 if (!isShowNames() || bs == null)
565 return;
566
567 Point p = nc.getPoint(n);
568 TextElement text = bs.text;
569 String s = text.labelCompositionStrategy.compose(n);
570 if (s == null) return;
571
572 Font defaultFont = g.getFont();
573 g.setFont(text.font);
574
575 int x = p.x + text.xOffset;
576 int y = p.y + text.yOffset;
577 /**
578 *
579 * left-above __center-above___ right-above
580 * left-top| |right-top
581 * | |
582 * left-center| center-center |right-center
583 * | |
584 * left-bottom|_________________|right-bottom
585 * left-below center-below right-below
586 *
587 */
588 Rectangle box = bs.getBox();
589 if (bs.hAlign == HorizontalTextAlignment.RIGHT) {
590 x += box.x + box.width + 2;
591 } else {
592 FontRenderContext frc = g.getFontRenderContext();
593 Rectangle2D bounds = text.font.getStringBounds(s, frc);
594 int textWidth = (int) bounds.getWidth();
595 if (bs.hAlign == HorizontalTextAlignment.CENTER) {
596 x -= textWidth / 2;
597 } else if (bs.hAlign == HorizontalTextAlignment.LEFT) {
598 x -= - box.x + 4 + textWidth;
599 } else throw new AssertionError();
600 }
601
602 if (bs.vAlign == VerticalTextAlignment.BOTTOM) {
603 y += box.y + box.height;
604 } else {
605 FontRenderContext frc = g.getFontRenderContext();
606 LineMetrics metrics = text.font.getLineMetrics(s, frc);
607 if (bs.vAlign == VerticalTextAlignment.ABOVE) {
608 y -= - box.y + metrics.getDescent();
609 } else if (bs.vAlign == VerticalTextAlignment.TOP) {
610 y -= - box.y - metrics.getAscent();
611 } else if (bs.vAlign == VerticalTextAlignment.CENTER) {
612 y += (metrics.getAscent() - metrics.getDescent()) / 2;
613 } else if (bs.vAlign == VerticalTextAlignment.BELOW) {
614 y += box.y + box.height + metrics.getAscent() + 2;
615 } else throw new AssertionError();
616 }
617 displayText(null, s, x, y, n.isDisabled(), text);
618 g.setFont(defaultFont);
619 }
620
621 @Deprecated
622 public void drawLinePattern(Way way, Image pattern) {
623 drawRepeatImage(way, pattern, 0f, 0f, 0f, LineImageAlignment.TOP);
624 }
625
626 /**
627 * Draw an image along a way repeatedly.
628 *
629 * @param way the way
630 * @param pattern the image
631 * @param offset offset from the way
632 * @param spacing spacing between two images
633 * @param phase initial spacing
634 * @param align alignment of the image. The top, center or bottom edge
635 * can be aligned with the way.
636 */
637 public void drawRepeatImage(Way way, Image pattern, float offset, float spacing, float phase, LineImageAlignment align) {
638 final int imgWidth = pattern.getWidth(null);
639 final double repeat = imgWidth + spacing;
640 final int imgHeight = pattern.getHeight(null);
641
642 Point lastP = null;
643 double currentWayLength = phase % repeat;
644 if (currentWayLength < 0) {
645 currentWayLength += repeat;
646 }
647
648 int dy1, dy2;
649 switch (align) {
650 case TOP:
651 dy1 = 0;
652 dy2 = imgHeight;
653 break;
654 case CENTER:
655 dy1 = - imgHeight / 2;
656 dy2 = imgHeight + dy1;
657 break;
658 case BOTTOM:
659 dy1 = -imgHeight;
660 dy2 = 0;
661 break;
662 default:
663 throw new AssertionError();
664 }
665
666 OffsetIterator it = new OffsetIterator(way.getNodes(), offset);
667 while (it.hasNext()) {
668 Point thisP = it.next();
669
670 if (lastP != null) {
671 final double segmentLength = thisP.distance(lastP);
672
673 final double dx = thisP.x - lastP.x;
674 final double dy = thisP.y - lastP.y;
675
676 // pos is the position from the beginning of the current segment
677 // where an image should be painted
678 double pos = repeat - (currentWayLength % repeat);
679
680 AffineTransform saveTransform = g.getTransform();
681 g.translate(lastP.x, lastP.y);
682 g.rotate(Math.atan2(dy, dx));
683
684 // draw the rest of the image from the last segment in case it
685 // is cut off
686 if (pos > spacing) {
687 // segment is too short for a complete image
688 if (pos > segmentLength + spacing) {
689 g.drawImage(pattern, 0, dy1, (int) segmentLength, dy2,
690 (int) (repeat - pos), 0,
691 (int) (repeat - pos + segmentLength), imgHeight, null);
692 // rest of the image fits fully on the current segment
693 } else {
694 g.drawImage(pattern, 0, dy1, (int) (pos - spacing), dy2,
695 (int) (repeat - pos), 0, imgWidth, imgHeight, null);
696 }
697 }
698 // draw remaining images for this segment
699 while (pos < segmentLength) {
700 // cut off at the end?
701 if (pos + imgWidth > segmentLength) {
702 g.drawImage(pattern, (int) pos, dy1, (int) segmentLength, dy2,
703 0, 0, (int) segmentLength - (int) pos, imgHeight, null);
704 } else {
705 g.drawImage(pattern, (int) pos, dy1, nc);
706 }
707 pos += repeat;
708 }
709 g.setTransform(saveTransform);
710
711 currentWayLength += segmentLength;
712 }
713 lastP = thisP;
714 }
715 }
716
717 @Override
718 public void drawNode(Node n, Color color, int size, boolean fill) {
719 if(size <= 0 && !n.isHighlighted())
720 return;
721
722 Point p = nc.getPoint(n);
723
724 if(n.isHighlighted()) {
725 drawPointHighlight(p, size);
726 }
727
728 if (size > 1) {
729 if ((p.x < 0) || (p.y < 0) || (p.x > nc.getWidth()) || (p.y > nc.getHeight())) return;
730 int radius = size / 2;
731
732 if (isInactiveMode || n.isDisabled()) {
733 g.setColor(inactiveColor);
734 } else {
735 g.setColor(color);
736 }
737 if (fill) {
738 g.fillRect(p.x-radius-1, p.y-radius-1, size + 1, size + 1);
739 } else {
740 g.drawRect(p.x-radius-1, p.y-radius-1, size, size);
741 }
742 }
743 }
744
745 public void drawNodeIcon(Node n, Image img, float alpha, boolean selected, boolean member) {
746 Point p = nc.getPoint(n);
747
748 final int w = img.getWidth(null), h=img.getHeight(null);
749 if(n.isHighlighted()) {
750 drawPointHighlight(p, Math.max(w, h));
751 }
752
753 if (alpha != 1f) {
754 g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
755 }
756 g.drawImage(img, p.x-w/2, p.y-h/2, nc);
757 g.setPaintMode();
758 if (selected || member)
759 {
760 Color color;
761 if (isInactiveMode || n.isDisabled()) {
762 color = inactiveColor;
763 } else if (selected) {
764 color = selectedColor;
765 } else {
766 color = relationSelectedColor;
767 }
768 g.setColor(color);
769 g.drawRect(p.x-w/2-2, p.y-h/2-2, w+4, h+4);
770 }
771 }
772
773 public void drawNodeSymbol(Node n, Symbol s, Color fillColor, Color strokeColor) {
774 Point p = nc.getPoint(n);
775 int radius = s.size / 2;
776
777 if(n.isHighlighted()) {
778 drawPointHighlight(p, s.size);
779 }
780
781 if (fillColor != null) {
782 g.setColor(fillColor);
783 switch (s.symbol) {
784 case SQUARE:
785 g.fillRect(p.x - radius, p.y - radius, s.size, s.size);
786 break;
787 case CIRCLE:
788 g.fillOval(p.x - radius, p.y - radius, s.size, s.size);
789 break;
790 case TRIANGLE:
791 g.fillPolygon(buildPolygon(p, radius, 3, Math.PI / 2));
792 break;
793 case PENTAGON:
794 g.fillPolygon(buildPolygon(p, radius, 5, Math.PI / 2));
795 break;
796 case HEXAGON:
797 g.fillPolygon(buildPolygon(p, radius, 6));
798 break;
799 case HEPTAGON:
800 g.fillPolygon(buildPolygon(p, radius, 7, Math.PI / 2));
801 break;
802 case OCTAGON:
803 g.fillPolygon(buildPolygon(p, radius, 8, Math.PI / 8));
804 break;
805 case NONAGON:
806 g.fillPolygon(buildPolygon(p, radius, 9, Math.PI / 2));
807 break;
808 case DECAGON:
809 g.fillPolygon(buildPolygon(p, radius, 10));
810 break;
811 default:
812 throw new AssertionError();
813 }
814 }
815 if (s.stroke != null) {
816 g.setStroke(s.stroke);
817 g.setColor(strokeColor);
818 switch (s.symbol) {
819 case SQUARE:
820 g.drawRect(p.x - radius, p.y - radius, s.size - 1, s.size - 1);
821 break;
822 case CIRCLE:
823 g.drawOval(p.x - radius, p.y - radius, s.size - 1, s.size - 1);
824 break;
825 case TRIANGLE:
826 g.drawPolygon(buildPolygon(p, radius, 3, Math.PI / 2));
827 break;
828 case PENTAGON:
829 g.drawPolygon(buildPolygon(p, radius, 5, Math.PI / 2));
830 break;
831 case HEXAGON:
832 g.drawPolygon(buildPolygon(p, radius, 6));
833 break;
834 case HEPTAGON:
835 g.drawPolygon(buildPolygon(p, radius, 7, Math.PI / 2));
836 break;
837 case OCTAGON:
838 g.drawPolygon(buildPolygon(p, radius, 8, Math.PI / 8));
839 break;
840 case NONAGON:
841 g.drawPolygon(buildPolygon(p, radius, 9, Math.PI / 2));
842 break;
843 case DECAGON:
844 g.drawPolygon(buildPolygon(p, radius, 10));
845 break;
846 default:
847 throw new AssertionError();
848 }
849 g.setStroke(new BasicStroke());
850 }
851 }
852
853 /**
854 * Draw a number of the order of the two consecutive nodes within the
855 * parents way
856 */
857 public void drawOrderNumber(Node n1, Node n2, int orderNumber, Color clr) {
858 Point p1 = nc.getPoint(n1);
859 Point p2 = nc.getPoint(n2);
860 StyledMapRenderer.this.drawOrderNumber(p1, p2, orderNumber, clr);
861 }
862
863 /**
864 * highlights a given GeneralPath using the settings from BasicStroke to match the line's
865 * style. Width of the highlight is hard coded.
866 * @param path
867 * @param line
868 */
869 private void drawPathHighlight(GeneralPath path, BasicStroke line) {
870 if(path == null)
871 return;
872 g.setColor(highlightColorTransparent);
873 float w = (line.getLineWidth() + highlightLineWidth);
874 if (useWiderHighlight) w+=widerHighlight;
875 while(w >= line.getLineWidth()) {
876 g.setStroke(new BasicStroke(w, line.getEndCap(), line.getLineJoin(), line.getMiterLimit()));
877 g.draw(path);
878 w -= highlightStep;
879 }
880 }
881 /**
882 * highlights a given point by drawing a rounded rectangle around it. Give the
883 * size of the object you want to be highlighted, width is added automatically.
884 */
885 private void drawPointHighlight(Point p, int size) {
886 g.setColor(highlightColorTransparent);
887 int s = size + highlightPointRadius;
888 if (useWiderHighlight) s+=widerHighlight;
889 while(s >= size) {
890 int r = (int) Math.floor(s/2);
891 g.fillRoundRect(p.x-r, p.y-r, s, s, r, r);
892 s -= highlightStep;
893 }
894 }
895
896 public void drawRestriction(Image img, Point pVia, double vx, double vx2, double vy, double vy2, double angle, boolean selected) {
897 // rotate image with direction last node in from to, and scale down image to 16*16 pixels
898 Image smallImg = ImageProvider.createRotatedImage(img, angle, new Dimension(16, 16));
899 int w = smallImg.getWidth(null), h=smallImg.getHeight(null);
900 g.drawImage(smallImg, (int)(pVia.x+vx+vx2)-w/2, (int)(pVia.y+vy+vy2)-h/2, nc);
901
902 if (selected) {
903 g.setColor(isInactiveMode ? inactiveColor : relationSelectedColor);
904 g.drawRect((int)(pVia.x+vx+vx2)-w/2-2,(int)(pVia.y+vy+vy2)-h/2-2, w+4, h+4);
905 }
906 }
907
908 public void drawRestriction(Relation r, MapImage icon) {
909 Way fromWay = null;
910 Way toWay = null;
911 OsmPrimitive via = null;
912
913 /* find the "from", "via" and "to" elements */
914 for (RelationMember m : r.getMembers())
915 {
916 if(m.getMember().isIncomplete())
917 return;
918 else
919 {
920 if(m.isWay())
921 {
922 Way w = m.getWay();
923 if(w.getNodesCount() < 2) {
924 continue;
925 }
926
927 if("from".equals(m.getRole())) {
928 if(fromWay == null) {
929 fromWay = w;
930 }
931 } else if("to".equals(m.getRole())) {
932 if(toWay == null) {
933 toWay = w;
934 }
935 } else if("via".equals(m.getRole())) {
936 if(via == null) {
937 via = w;
938 }
939 }
940 }
941 else if(m.isNode())
942 {
943 Node n = m.getNode();
944 if("via".equals(m.getRole()) && via == null) {
945 via = n;
946 }
947 }
948 }
949 }
950
951 if (fromWay == null || toWay == null || via == null)
952 return;
953
954 Node viaNode;
955 if(via instanceof Node)
956 {
957 viaNode = (Node) via;
958 if(!fromWay.isFirstLastNode(viaNode))
959 return;
960 }
961 else
962 {
963 Way viaWay = (Way) via;
964 Node firstNode = viaWay.firstNode();
965 Node lastNode = viaWay.lastNode();
966 Boolean onewayvia = false;
967
968 String onewayviastr = viaWay.get("oneway");
969 if(onewayviastr != null)
970 {
971 if("-1".equals(onewayviastr)) {
972 onewayvia = true;
973 Node tmp = firstNode;
974 firstNode = lastNode;
975 lastNode = tmp;
976 } else {
977 onewayvia = OsmUtils.getOsmBoolean(onewayviastr);
978 if (onewayvia == null) {
979 onewayvia = false;
980 }
981 }
982 }
983
984 if(fromWay.isFirstLastNode(firstNode)) {
985 viaNode = firstNode;
986 } else if (!onewayvia && fromWay.isFirstLastNode(lastNode)) {
987 viaNode = lastNode;
988 } else
989 return;
990 }
991
992 /* find the "direct" nodes before the via node */
993 Node fromNode;
994 if(fromWay.firstNode() == via) {
995 fromNode = fromWay.getNode(1);
996 } else {
997 fromNode = fromWay.getNode(fromWay.getNodesCount()-2);
998 }
999
1000 Point pFrom = nc.getPoint(fromNode);
1001 Point pVia = nc.getPoint(viaNode);
1002
1003 /* starting from via, go back the "from" way a few pixels
1004 (calculate the vector vx/vy with the specified length and the direction
1005 away from the "via" node along the first segment of the "from" way)
1006 */
1007 double distanceFromVia=14;
1008 double dx = (pFrom.x >= pVia.x) ? (pFrom.x - pVia.x) : (pVia.x - pFrom.x);
1009 double dy = (pFrom.y >= pVia.y) ? (pFrom.y - pVia.y) : (pVia.y - pFrom.y);
1010
1011 double fromAngle;
1012 if(dx == 0.0) {
1013 fromAngle = Math.PI/2;
1014 } else {
1015 fromAngle = Math.atan(dy / dx);
1016 }
1017 double fromAngleDeg = Math.toDegrees(fromAngle);
1018
1019 double vx = distanceFromVia * Math.cos(fromAngle);
1020 double vy = distanceFromVia * Math.sin(fromAngle);
1021
1022 if(pFrom.x < pVia.x) {
1023 vx = -vx;
1024 }
1025 if(pFrom.y < pVia.y) {
1026 vy = -vy;
1027 }
1028
1029 /* go a few pixels away from the way (in a right angle)
1030 (calculate the vx2/vy2 vector with the specified length and the direction
1031 90degrees away from the first segment of the "from" way)
1032 */
1033 double distanceFromWay=10;
1034 double vx2 = 0;
1035 double vy2 = 0;
1036 double iconAngle = 0;
1037
1038 if(pFrom.x >= pVia.x && pFrom.y >= pVia.y) {
1039 if(!leftHandTraffic) {
1040 vx2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg - 90));
1041 vy2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg - 90));
1042 } else {
1043 vx2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg + 90));
1044 vy2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg + 90));
1045 }
1046 iconAngle = 270+fromAngleDeg;
1047 }
1048 if(pFrom.x < pVia.x && pFrom.y >= pVia.y) {
1049 if(!leftHandTraffic) {
1050 vx2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg));
1051 vy2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg));
1052 } else {
1053 vx2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg + 180));
1054 vy2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg + 180));
1055 }
1056 iconAngle = 90-fromAngleDeg;
1057 }
1058 if(pFrom.x < pVia.x && pFrom.y < pVia.y) {
1059 if(!leftHandTraffic) {
1060 vx2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg + 90));
1061 vy2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg + 90));
1062 } else {
1063 vx2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg - 90));
1064 vy2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg - 90));
1065 }
1066 iconAngle = 90+fromAngleDeg;
1067 }
1068 if(pFrom.x >= pVia.x && pFrom.y < pVia.y) {
1069 if(!leftHandTraffic) {
1070 vx2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg + 180));
1071 vy2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg + 180));
1072 } else {
1073 vx2 = distanceFromWay * Math.sin(Math.toRadians(fromAngleDeg));
1074 vy2 = distanceFromWay * Math.cos(Math.toRadians(fromAngleDeg));
1075 }
1076 iconAngle = 270-fromAngleDeg;
1077 }
1078
1079 drawRestriction(isInactiveMode || r.isDisabled() ? icon.getDisabled() : icon.getImage(),
1080 pVia, vx, vx2, vy, vy2, iconAngle, r.isSelected());
1081 }
1082
1083 public void drawTextOnPath(Way way, TextElement text) {
1084 if (way == null || text == null)
1085 return;
1086 String name = text.getString(way);
1087 if (name == null || name.isEmpty())
1088 return;
1089
1090 Polygon poly = new Polygon();
1091 Point lastPoint = null;
1092 Iterator<Node> it = way.getNodes().iterator();
1093 double pathLength = 0;
1094 long dx, dy;
1095 while (it.hasNext()) {
1096 Node n = it.next();
1097 Point p = nc.getPoint(n);
1098 poly.addPoint(p.x, p.y);
1099
1100 if(lastPoint != null) {
1101 dx = p.x - lastPoint.x;
1102 dy = p.y - lastPoint.y;
1103 pathLength += Math.sqrt(dx*dx + dy*dy);
1104 }
1105 lastPoint = p;
1106 }
1107
1108 FontMetrics fontMetrics = g.getFontMetrics(text.font); // if slow, use cache
1109 Rectangle2D rec = fontMetrics.getStringBounds(name, g); // if slow, approximate by strlen()*maxcharbounds(font)
1110
1111 if (rec.getWidth() > pathLength)
1112 return;
1113
1114 double t1 = (pathLength/2 - rec.getWidth()/2) / pathLength;
1115 double t2 = (pathLength/2 + rec.getWidth()/2) / pathLength;
1116
1117 double[] p1 = pointAt(t1, poly, pathLength);
1118 double[] p2 = pointAt(t2, poly, pathLength);
1119
1120 if (p1 == null || p2 == null)
1121 return;
1122
1123 double angleOffset;
1124 double offsetSign;
1125 double tStart;
1126
1127 if (p1[0] < p2[0] &&
1128 p1[2] < Math.PI/2 &&
1129 p1[2] > -Math.PI/2) {
1130 angleOffset = 0;
1131 offsetSign = 1;
1132 tStart = t1;
1133 } else {
1134 angleOffset = Math.PI;
1135 offsetSign = -1;
1136 tStart = t2;
1137 }
1138
1139 FontRenderContext frc = g.getFontRenderContext();
1140 GlyphVector gv = text.font.createGlyphVector(frc, name);
1141
1142 for (int i=0; i<gv.getNumGlyphs(); ++i) {
1143 Rectangle2D rect = gv.getGlyphLogicalBounds(i).getBounds2D();
1144 double t = tStart + offsetSign * (rect.getX() + rect.getWidth()/2) / pathLength;
1145 double[] p = pointAt(t, poly, pathLength);
1146 if (p != null) {
1147 AffineTransform trfm = AffineTransform.getTranslateInstance(p[0] - rect.getX(), p[1]);
1148 trfm.rotate(p[2]+angleOffset);
1149 double off = -rect.getY() - rect.getHeight()/2 + text.yOffset;
1150 trfm.translate(-rect.getWidth()/2, off);
1151 if (isGlyphVectorDoubleTranslationBug()) {
1152 // scale the translation components by one half
1153 AffineTransform tmp = AffineTransform.getTranslateInstance(-0.5 * trfm.getTranslateX(), -0.5 * trfm.getTranslateY());
1154 tmp.concatenate(trfm);
1155 trfm = tmp;
1156 }
1157 gv.setGlyphTransform(i, trfm);
1158 }
1159 }
1160 displayText(gv, null, 0, 0, way.isDisabled(), text);
1161 }
1162
1163 /**
1164 * draw way
1165 * @param showOrientation show arrows that indicate the technical orientation of
1166 * the way (defined by order of nodes)
1167 * @param showOneway show symbols that indicate the direction of the feature,
1168 * e.g. oneway street or waterway
1169 * @param onewayReversed for oneway=-1 and similar
1170 */
1171 public void drawWay(Way way, Color color, BasicStroke line, BasicStroke dashes, Color dashedColor, float offset,
1172 boolean showOrientation, boolean showHeadArrowOnly,
1173 boolean showOneway, boolean onewayReversed) {
1174
1175 GeneralPath path = new GeneralPath();
1176 GeneralPath orientationArrows = showOrientation ? new GeneralPath() : null;
1177 GeneralPath onewayArrows = showOneway ? new GeneralPath() : null;
1178 GeneralPath onewayArrowsCasing = showOneway ? new GeneralPath() : null;
1179 Rectangle bounds = g.getClipBounds();
1180 bounds.grow(100, 100); // avoid arrow heads at the border
1181
1182 double wayLength = 0;
1183 Point lastPoint = null;
1184 boolean initialMoveToNeeded = true;
1185 List<Node> wayNodes = way.getNodes();
1186 if (wayNodes.size() < 2) return;
1187
1188 // only highlight the segment if the way itself is not highlighted
1189 if (!way.isHighlighted()) {
1190 GeneralPath highlightSegs = null;
1191 for (WaySegment ws : highlightWaySegments) {
1192 if (ws.way != way || ws.lowerIndex < offset) {
1193 continue;
1194 }
1195 if(highlightSegs == null) {
1196 highlightSegs = new GeneralPath();
1197 }
1198
1199 Point p1 = nc.getPoint(ws.getFirstNode());
1200 Point p2 = nc.getPoint(ws.getSecondNode());
1201 highlightSegs.moveTo(p1.x, p1.y);
1202 highlightSegs.lineTo(p2.x, p2.y);
1203 }
1204
1205 drawPathHighlight(highlightSegs, line);
1206 }
1207
1208 Iterator<Point> it = new OffsetIterator(wayNodes, offset);
1209 while (it.hasNext()) {
1210 Point p = it.next();
1211 if (lastPoint != null) {
1212 Point p1 = lastPoint;
1213 Point p2 = p;
1214
1215 /**
1216 * Do custom clipping to work around openjdk bug. It leads to
1217 * drawing artefacts when zooming in a lot. (#4289, #4424)
1218 * (Looks like int overflow.)
1219 */
1220 LineClip clip = new LineClip(p1, p2, bounds);
1221 if (clip.execute()) {
1222 if (!p1.equals(clip.getP1())) {
1223 p1 = clip.getP1();
1224 path.moveTo(p1.x, p1.y);
1225 } else if (initialMoveToNeeded) {
1226 initialMoveToNeeded = false;
1227 path.moveTo(p1.x, p1.y);
1228 }
1229 p2 = clip.getP2();
1230 path.lineTo(p2.x, p2.y);
1231
1232 /* draw arrow */
1233 if (showHeadArrowOnly ? !it.hasNext() : showOrientation) {
1234 final double segmentLength = p1.distance(p2);
1235 if (segmentLength != 0.0) {
1236 final double l = (10. + line.getLineWidth()) / segmentLength;
1237
1238 final double sx = l * (p1.x - p2.x);
1239 final double sy = l * (p1.y - p2.y);
1240
1241 orientationArrows.moveTo (p2.x + cosPHI * sx - sinPHI * sy, p2.y + sinPHI * sx + cosPHI * sy);
1242 orientationArrows.lineTo(p2.x, p2.y);
1243 orientationArrows.lineTo (p2.x + cosPHI * sx + sinPHI * sy, p2.y - sinPHI * sx + cosPHI * sy);
1244 }
1245 }
1246 if (showOneway) {
1247 final double segmentLength = p1.distance(p2);
1248 if (segmentLength != 0.0) {
1249 final double nx = (p2.x - p1.x) / segmentLength;
1250 final double ny = (p2.y - p1.y) / segmentLength;
1251
1252 final double interval = 60;
1253 // distance from p1
1254 double dist = interval - (wayLength % interval);
1255
1256 while (dist < segmentLength) {
1257 for (int i=0; i<2; ++i) {
1258 float onewaySize = i == 0 ? 3f : 2f;
1259 GeneralPath onewayPath = i == 0 ? onewayArrowsCasing : onewayArrows;
1260
1261 // scale such that border is 1 px
1262 final double fac = - (onewayReversed ? -1 : 1) * onewaySize * (1 + sinPHI) / (sinPHI * cosPHI);
1263 final double sx = nx * fac;
1264 final double sy = ny * fac;
1265
1266 // Attach the triangle at the incenter and not at the tip.
1267 // Makes the border even at all sides.
1268 final double x = p1.x + nx * (dist + (onewayReversed ? -1 : 1) * (onewaySize / sinPHI));
1269 final double y = p1.y + ny * (dist + (onewayReversed ? -1 : 1) * (onewaySize / sinPHI));
1270
1271 onewayPath.moveTo(x, y);
1272 onewayPath.lineTo (x + cosPHI * sx - sinPHI * sy, y + sinPHI * sx + cosPHI * sy);
1273 onewayPath.lineTo (x + cosPHI * sx + sinPHI * sy, y - sinPHI * sx + cosPHI * sy);
1274 onewayPath.lineTo(x, y);
1275 }
1276 dist += interval;
1277 }
1278 }
1279 wayLength += segmentLength;
1280 }
1281 }
1282 }
1283 lastPoint = p;
1284 }
1285 if(way.isHighlighted()) {
1286 drawPathHighlight(path, line);
1287 }
1288 displaySegments(path, orientationArrows, onewayArrows, onewayArrowsCasing, color, line, dashes, dashedColor);
1289 }
1290
1291 public double getCircum() {
1292 return circum;
1293 }
1294
1295 @Override
1296 public void getColors() {
1297 super.getColors();
1298 this.relationSelectedColor = PaintColors.RELATIONSELECTED.get();
1299 this.highlightColorTransparent = new Color(highlightColor.getRed(), highlightColor.getGreen(), highlightColor.getBlue(), 100);
1300 this.backgroundColor = PaintColors.getBackgroundColor();
1301 }
1302
1303 @Override
1304 protected void getSettings(boolean virtual) {
1305 super.getSettings(virtual);
1306 paintSettings = MapPaintSettings.INSTANCE;
1307
1308 circum = nc.getDist100Pixel();
1309
1310 leftHandTraffic = Main.pref.getBoolean("mappaint.lefthandtraffic", false);
1311
1312 useStrokes = paintSettings.getUseStrokesDistance() > circum;
1313 showNames = paintSettings.getShowNamesDistance() > circum;
1314 showIcons = paintSettings.getShowIconsDistance() > circum;
1315 isOutlineOnly = paintSettings.isOutlineOnly();
1316 orderFont = new Font(Main.pref.get("mappaint.font", "Helvetica"), Font.PLAIN, Main.pref.getInteger("mappaint.fontsize", 8));
1317
1318 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
1319 Main.pref.getBoolean("mappaint.use-antialiasing", true) ?
1320 RenderingHints.VALUE_ANTIALIAS_ON : RenderingHints.VALUE_ANTIALIAS_OFF);
1321
1322 highlightLineWidth = Main.pref.getInteger("mappaint.highlight.width", 4);
1323 highlightPointRadius = Main.pref.getInteger("mappaint.highlight.radius", 7);
1324 widerHighlight = Main.pref.getInteger("mappaint.highlight.bigger-increment", 5);
1325 highlightStep = Main.pref.getInteger("mappaint.highlight.step", 4);
1326 }
1327
1328 private Path2D.Double getPath(Way w) {
1329 Path2D.Double path = new Path2D.Double();
1330 boolean initial = true;
1331 for (Node n : w.getNodes()) {
1332 EastNorth p = n.getEastNorth();
1333 if (p != null) {
1334 if (initial) {
1335 path.moveTo(p.getX(), p.getY());
1336 initial = false;
1337 } else {
1338 path.lineTo(p.getX(), p.getY());
1339 }
1340 }
1341 }
1342 return path;
1343 }
1344
1345 private boolean isAreaVisible(Path2D.Double area) {
1346 Rectangle2D bounds = area.getBounds2D();
1347 if (bounds.isEmpty()) return false;
1348 Point2D p = nc.getPoint2D(new EastNorth(bounds.getX(), bounds.getY()));
1349 if (p.getX() > nc.getWidth()) return false;
1350 if (p.getY() < 0) return false;
1351 p = nc.getPoint2D(new EastNorth(bounds.getX() + bounds.getWidth(), bounds.getY() + bounds.getHeight()));
1352 if (p.getX() < 0) return false;
1353 if (p.getY() > nc.getHeight()) return false;
1354 return true;
1355 }
1356
1357 public boolean isInactiveMode() {
1358 return isInactiveMode;
1359 }
1360
1361 public boolean isShowIcons() {
1362 return showIcons;
1363 }
1364
1365 public boolean isShowNames() {
1366 return showNames;
1367 }
1368
1369 private double[] pointAt(double t, Polygon poly, double pathLength) {
1370 double totalLen = t * pathLength;
1371 double curLen = 0;
1372 long dx, dy;
1373 double segLen;
1374
1375 // Yes, it is inefficient to iterate from the beginning for each glyph.
1376 // Can be optimized if it turns out to be slow.
1377 for (int i = 1; i < poly.npoints; ++i) {
1378 dx = poly.xpoints[i] - poly.xpoints[i-1];
1379 dy = poly.ypoints[i] - poly.ypoints[i-1];
1380 segLen = Math.sqrt(dx*dx + dy*dy);
1381 if (totalLen > curLen + segLen) {
1382 curLen += segLen;
1383 continue;
1384 }
1385 return new double[] {
1386 poly.xpoints[i-1]+(totalLen - curLen)/segLen*dx,
1387 poly.ypoints[i-1]+(totalLen - curLen)/segLen*dy,
1388 Math.atan2(dy, dx)};
1389 }
1390 return null;
1391 }
1392
1393 @Override
1394 public void render(final DataSet data, boolean renderVirtualNodes, Bounds bounds) {
1395 BBox bbox = bounds.toBBox();
1396 getSettings(renderVirtualNodes);
1397
1398 boolean drawArea = circum <= Main.pref.getInteger("mappaint.fillareas", 10000000);
1399 boolean drawMultipolygon = drawArea && Main.pref.getBoolean("mappaint.multipolygon", true);
1400 boolean drawRestriction = Main.pref.getBoolean("mappaint.restriction", true);
1401
1402 styles = MapPaintStyles.getStyles();
1403 styles.setDrawMultipolygon(drawMultipolygon);
1404
1405 highlightWaySegments = data.getHighlightedWaySegments();
1406
1407 StyleCollector sc = new StyleCollector(drawArea, drawMultipolygon, drawRestriction);
1408 collectNodeStyles(data, sc, bbox);
1409 collectWayStyles(data, sc, bbox);
1410 collectRelationStyles(data, sc, bbox);
1411 sc.drawAll();
1412 sc = null;
1413 drawVirtualNodes(data, bbox);
1414 }
1415}
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