11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.java2d.marlin;
27
28 import sun.awt.geom.PathConsumer2D;
29 import java.awt.geom.AffineTransform;
30 import java.awt.geom.Path2D;
31
32 final class TransformingPathConsumer2D {
33
34 TransformingPathConsumer2D() {
35 // used by RendererContext
36 }
37
38 // recycled PathConsumer2D instance from wrapPath2d()
39 private final Path2DWrapper wp_Path2DWrapper = new Path2DWrapper();
40
41 PathConsumer2D wrapPath2d(Path2D.Float p2d)
42 {
43 return wp_Path2DWrapper.init(p2d);
44 }
45
46 // recycled PathConsumer2D instances from deltaTransformConsumer()
47 private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
48 private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
49
50 PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
51 AffineTransform at)
52 {
53 if (at == null) {
54 return out;
55 }
56 float mxx = (float) at.getScaleX();
57 float mxy = (float) at.getShearX();
58 float myx = (float) at.getShearY();
59 float myy = (float) at.getScaleY();
60
61 if (mxy == 0.0f && myx == 0.0f) {
62 if (mxx == 1.0f && myy == 1.0f) {
63 return out;
64 } else {
65 return dt_DeltaScaleFilter.init(out, mxx, myy);
66 }
67 } else {
68 return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
69 }
70 }
71
72 // recycled PathConsumer2D instances from inverseDeltaTransformConsumer()
73 private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
74 private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
75
76 PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
77 AffineTransform at)
78 {
79 if (at == null) {
80 return out;
81 }
82 float mxx = (float) at.getScaleX();
83 float mxy = (float) at.getShearX();
84 float myx = (float) at.getShearY();
85 float myy = (float) at.getScaleY();
86
87 if (mxy == 0.0f && myx == 0.0f) {
88 if (mxx == 1.0f && myy == 1.0f) {
89 return out;
90 } else {
91 return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
92 }
93 } else {
94 float det = mxx * myy - mxy * myx;
95 return iv_DeltaTransformFilter.init(out,
96 myy / det,
97 -mxy / det,
98 -myx / det,
99 mxx / det);
100 }
101 }
102
103
104 static final class DeltaScaleFilter implements PathConsumer2D {
105 private PathConsumer2D out;
106 private float sx, sy;
107
108 DeltaScaleFilter() {}
109
110 DeltaScaleFilter init(PathConsumer2D out,
111 float mxx, float myy)
112 {
113 this.out = out;
114 sx = mxx;
115 sy = myy;
116 return this; // fluent API
117 }
118
119 @Override
120 public void moveTo(float x0, float y0) {
121 out.moveTo(x0 * sx, y0 * sy);
122 }
123
251
252 @Override
253 public void closePath() {
254 p2d.closePath();
255 }
256
257 @Override
258 public void pathDone() {}
259
260 @Override
261 public void curveTo(float x1, float y1,
262 float x2, float y2,
263 float x3, float y3)
264 {
265 p2d.curveTo(x1, y1, x2, y2, x3, y3);
266 }
267
268 @Override
269 public void quadTo(float x1, float y1, float x2, float y2) {
270 p2d.quadTo(x1, y1, x2, y2);
271 }
272
273 @Override
274 public long getNativeConsumer() {
275 throw new InternalError("Not using a native peer");
276 }
277 }
278 }
|
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.java2d.marlin;
27
28 import sun.awt.geom.PathConsumer2D;
29 import java.awt.geom.AffineTransform;
30 import java.awt.geom.Path2D;
31 import sun.java2d.marlin.Helpers.IndexStack;
32 import sun.java2d.marlin.Helpers.PolyStack;
33
34 final class TransformingPathConsumer2D {
35
36 private final RendererContext rdrCtx;
37
38 // recycled ClosedPathDetector instance from detectClosedPath()
39 private final ClosedPathDetector cpDetector;
40
41 // recycled PathClipFilter instance from pathClipper()
42 private final PathClipFilter pathClipper;
43
44 // recycled PathConsumer2D instance from wrapPath2D()
45 private final Path2DWrapper wp_Path2DWrapper = new Path2DWrapper();
46
47 // recycled PathConsumer2D instances from deltaTransformConsumer()
48 private final DeltaScaleFilter dt_DeltaScaleFilter = new DeltaScaleFilter();
49 private final DeltaTransformFilter dt_DeltaTransformFilter = new DeltaTransformFilter();
50
51 // recycled PathConsumer2D instances from inverseDeltaTransformConsumer()
52 private final DeltaScaleFilter iv_DeltaScaleFilter = new DeltaScaleFilter();
53 private final DeltaTransformFilter iv_DeltaTransformFilter = new DeltaTransformFilter();
54
55 // recycled PathTracer instances from tracer...() methods
56 private final PathTracer tracerInput = new PathTracer("[Input]");
57 private final PathTracer tracerCPDetector = new PathTracer("ClosedPathDetector");
58 private final PathTracer tracerFiller = new PathTracer("Filler");
59 private final PathTracer tracerStroker = new PathTracer("Stroker");
60
61 TransformingPathConsumer2D(final RendererContext rdrCtx) {
62 // used by RendererContext
63 this.rdrCtx = rdrCtx;
64 this.cpDetector = new ClosedPathDetector(rdrCtx);
65 this.pathClipper = new PathClipFilter(rdrCtx);
66 }
67
68 PathConsumer2D wrapPath2D(Path2D.Float p2d) {
69 return wp_Path2DWrapper.init(p2d);
70 }
71
72 PathConsumer2D traceInput(PathConsumer2D out) {
73 return tracerInput.init(out);
74 }
75
76 PathConsumer2D traceClosedPathDetector(PathConsumer2D out) {
77 return tracerCPDetector.init(out);
78 }
79
80 PathConsumer2D traceFiller(PathConsumer2D out) {
81 return tracerFiller.init(out);
82 }
83
84 PathConsumer2D traceStroker(PathConsumer2D out) {
85 return tracerStroker.init(out);
86 }
87
88 PathConsumer2D detectClosedPath(PathConsumer2D out) {
89 return cpDetector.init(out);
90 }
91
92 PathConsumer2D pathClipper(PathConsumer2D out) {
93 return pathClipper.init(out);
94 }
95
96 PathConsumer2D deltaTransformConsumer(PathConsumer2D out,
97 AffineTransform at)
98 {
99 if (at == null) {
100 return out;
101 }
102 final float mxx = (float) at.getScaleX();
103 final float mxy = (float) at.getShearX();
104 final float myx = (float) at.getShearY();
105 final float myy = (float) at.getScaleY();
106
107 if (mxy == 0.0f && myx == 0.0f) {
108 if (mxx == 1.0f && myy == 1.0f) {
109 return out;
110 } else {
111 // Scale only
112 if (rdrCtx.doClip) {
113 // adjust clip rectangle (ymin, ymax, xmin, xmax):
114 adjustClipScale(rdrCtx.clipRect, mxx, myy);
115 }
116 return dt_DeltaScaleFilter.init(out, mxx, myy);
117 }
118 } else {
119 if (rdrCtx.doClip) {
120 // adjust clip rectangle (ymin, ymax, xmin, xmax):
121 adjustClipInverseDelta(rdrCtx.clipRect, mxx, mxy, myx, myy);
122 }
123 return dt_DeltaTransformFilter.init(out, mxx, mxy, myx, myy);
124 }
125 }
126
127 private static void adjustClipOffset(final float[] clipRect) {
128 clipRect[0] += Renderer.RDR_OFFSET_Y;
129 clipRect[1] += Renderer.RDR_OFFSET_Y;
130 clipRect[2] += Renderer.RDR_OFFSET_X;
131 clipRect[3] += Renderer.RDR_OFFSET_X;
132 }
133
134 private static void adjustClipScale(final float[] clipRect,
135 final float mxx, final float myy)
136 {
137 adjustClipOffset(clipRect);
138
139 // Adjust the clipping rectangle (iv_DeltaScaleFilter):
140 clipRect[0] /= myy;
141 clipRect[1] /= myy;
142 clipRect[2] /= mxx;
143 clipRect[3] /= mxx;
144 }
145
146 private static void adjustClipInverseDelta(final float[] clipRect,
147 final float mxx, final float mxy,
148 final float myx, final float myy)
149 {
150 adjustClipOffset(clipRect);
151
152 // Adjust the clipping rectangle (iv_DeltaTransformFilter):
153 final float det = mxx * myy - mxy * myx;
154 final float imxx = myy / det;
155 final float imxy = -mxy / det;
156 final float imyx = -myx / det;
157 final float imyy = mxx / det;
158
159 float xmin, xmax, ymin, ymax;
160 float x, y;
161 // xmin, ymin:
162 x = clipRect[2] * imxx + clipRect[0] * imxy;
163 y = clipRect[2] * imyx + clipRect[0] * imyy;
164
165 xmin = xmax = x;
166 ymin = ymax = y;
167
168 // xmax, ymin:
169 x = clipRect[3] * imxx + clipRect[0] * imxy;
170 y = clipRect[3] * imyx + clipRect[0] * imyy;
171
172 if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
173 if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
174
175 // xmin, ymax:
176 x = clipRect[2] * imxx + clipRect[1] * imxy;
177 y = clipRect[2] * imyx + clipRect[1] * imyy;
178
179 if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
180 if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
181
182 // xmax, ymax:
183 x = clipRect[3] * imxx + clipRect[1] * imxy;
184 y = clipRect[3] * imyx + clipRect[1] * imyy;
185
186 if (x < xmin) { xmin = x; } else if (x > xmax) { xmax = x; }
187 if (y < ymin) { ymin = y; } else if (y > ymax) { ymax = y; }
188
189 clipRect[0] = ymin;
190 clipRect[1] = ymax;
191 clipRect[2] = xmin;
192 clipRect[3] = xmax;
193 }
194
195 PathConsumer2D inverseDeltaTransformConsumer(PathConsumer2D out,
196 AffineTransform at)
197 {
198 if (at == null) {
199 return out;
200 }
201 float mxx = (float) at.getScaleX();
202 float mxy = (float) at.getShearX();
203 float myx = (float) at.getShearY();
204 float myy = (float) at.getScaleY();
205
206 if (mxy == 0.0f && myx == 0.0f) {
207 if (mxx == 1.0f && myy == 1.0f) {
208 return out;
209 } else {
210 return iv_DeltaScaleFilter.init(out, 1.0f/mxx, 1.0f/myy);
211 }
212 } else {
213 final float det = mxx * myy - mxy * myx;
214 return iv_DeltaTransformFilter.init(out,
215 myy / det,
216 -mxy / det,
217 -myx / det,
218 mxx / det);
219 }
220 }
221
222 static final class DeltaScaleFilter implements PathConsumer2D {
223 private PathConsumer2D out;
224 private float sx, sy;
225
226 DeltaScaleFilter() {}
227
228 DeltaScaleFilter init(PathConsumer2D out,
229 float mxx, float myy)
230 {
231 this.out = out;
232 sx = mxx;
233 sy = myy;
234 return this; // fluent API
235 }
236
237 @Override
238 public void moveTo(float x0, float y0) {
239 out.moveTo(x0 * sx, y0 * sy);
240 }
241
369
370 @Override
371 public void closePath() {
372 p2d.closePath();
373 }
374
375 @Override
376 public void pathDone() {}
377
378 @Override
379 public void curveTo(float x1, float y1,
380 float x2, float y2,
381 float x3, float y3)
382 {
383 p2d.curveTo(x1, y1, x2, y2, x3, y3);
384 }
385
386 @Override
387 public void quadTo(float x1, float y1, float x2, float y2) {
388 p2d.quadTo(x1, y1, x2, y2);
389 }
390
391 @Override
392 public long getNativeConsumer() {
393 throw new InternalError("Not using a native peer");
394 }
395 }
396
397 static final class ClosedPathDetector implements PathConsumer2D {
398
399 private final RendererContext rdrCtx;
400 private final PolyStack stack;
401
402 private PathConsumer2D out;
403
404 ClosedPathDetector(final RendererContext rdrCtx) {
405 this.rdrCtx = rdrCtx;
406 this.stack = (rdrCtx.stats != null) ?
407 new PolyStack(rdrCtx,
408 rdrCtx.stats.stat_cpd_polystack_types,
409 rdrCtx.stats.stat_cpd_polystack_curves,
410 rdrCtx.stats.hist_cpd_polystack_curves,
411 rdrCtx.stats.stat_array_cpd_polystack_curves,
412 rdrCtx.stats.stat_array_cpd_polystack_types)
413 : new PolyStack(rdrCtx);
414 }
415
416 ClosedPathDetector init(PathConsumer2D out) {
417 this.out = out;
418 return this; // fluent API
419 }
420
421 /**
422 * Disposes this instance:
423 * clean up before reusing this instance
424 */
425 void dispose() {
426 stack.dispose();
427 }
428
429 @Override
430 public void pathDone() {
431 // previous path is not closed:
432 finish(false);
433 out.pathDone();
434
435 // TODO: fix possible leak if exception happened
436 // Dispose this instance:
437 dispose();
438 }
439
440 @Override
441 public void closePath() {
442 // path is closed
443 finish(true);
444 out.closePath();
445 }
446
447 @Override
448 public void moveTo(float x0, float y0) {
449 // previous path is not closed:
450 finish(false);
451 out.moveTo(x0, y0);
452 }
453
454 private void finish(final boolean closed) {
455 rdrCtx.closedPath = closed;
456 stack.pullAll(out);
457 }
458
459 @Override
460 public void lineTo(float x1, float y1) {
461 stack.pushLine(x1, y1);
462 }
463
464 @Override
465 public void curveTo(float x3, float y3,
466 float x2, float y2,
467 float x1, float y1)
468 {
469 stack.pushCubic(x1, y1, x2, y2, x3, y3);
470 }
471
472 @Override
473 public void quadTo(float x2, float y2, float x1, float y1) {
474 stack.pushQuad(x1, y1, x2, y2);
475 }
476
477 @Override
478 public long getNativeConsumer() {
479 throw new InternalError("Not using a native peer");
480 }
481 }
482
483 static final class PathClipFilter implements PathConsumer2D {
484
485 private PathConsumer2D out;
486
487 // Bounds of the drawing region, at pixel precision.
488 private final float[] clipRect;
489
490 private final float[] corners = new float[8];
491 private boolean init_corners = false;
492
493 private final IndexStack stack;
494
495 // the current outcode of the current sub path
496 private int cOutCode = 0;
497
498 // the cumulated (and) outcode of the complete path
499 private int gOutCode = MarlinConst.OUTCODE_MASK_T_B_L_R;
500
501 private boolean outside = false;
502
503 // The current point OUTSIDE
504 private float cx0, cy0;
505
506 PathClipFilter(final RendererContext rdrCtx) {
507 this.clipRect = rdrCtx.clipRect;
508 this.stack = (rdrCtx.stats != null) ?
509 new IndexStack(rdrCtx,
510 rdrCtx.stats.stat_pcf_idxstack_indices,
511 rdrCtx.stats.hist_pcf_idxstack_indices,
512 rdrCtx.stats.stat_array_pcf_idxstack_indices)
513 : new IndexStack(rdrCtx);
514 }
515
516 PathClipFilter init(final PathConsumer2D out) {
517 this.out = out;
518
519 // Adjust the clipping rectangle with the renderer offsets
520 final float rdrOffX = Renderer.RDR_OFFSET_X;
521 final float rdrOffY = Renderer.RDR_OFFSET_Y;
522
523 // add a small rounding error:
524 final float margin = 1e-3f;
525
526 final float[] _clipRect = this.clipRect;
527 _clipRect[0] -= margin - rdrOffY;
528 _clipRect[1] += margin + rdrOffY;
529 _clipRect[2] -= margin - rdrOffX;
530 _clipRect[3] += margin + rdrOffX;
531
532 this.init_corners = true;
533 this.gOutCode = MarlinConst.OUTCODE_MASK_T_B_L_R;
534
535 return this; // fluent API
536 }
537
538 /**
539 * Disposes this instance:
540 * clean up before reusing this instance
541 */
542 void dispose() {
543 stack.dispose();
544 }
545
546 private void finishPath() {
547 if (outside) {
548 // criteria: inside or totally outside ?
549 if (gOutCode == 0) {
550 finish();
551 } else {
552 this.outside = false;
553 stack.reset();
554 }
555 }
556 }
557
558 private void finish() {
559 this.outside = false;
560
561 if (!stack.isEmpty()) {
562 if (init_corners) {
563 init_corners = false;
564
565 final float[] _corners = corners;
566 final float[] _clipRect = clipRect;
567 // Top Left (0):
568 _corners[0] = _clipRect[2];
569 _corners[1] = _clipRect[0];
570 // Bottom Left (1):
571 _corners[2] = _clipRect[2];
572 _corners[3] = _clipRect[1];
573 // Top right (2):
574 _corners[4] = _clipRect[3];
575 _corners[5] = _clipRect[0];
576 // Bottom Right (3):
577 _corners[6] = _clipRect[3];
578 _corners[7] = _clipRect[1];
579 }
580 stack.pullAll(corners, out);
581 }
582 out.lineTo(cx0, cy0);
583 }
584
585 @Override
586 public void pathDone() {
587 finishPath();
588
589 out.pathDone();
590
591 // TODO: fix possible leak if exception happened
592 // Dispose this instance:
593 dispose();
594 }
595
596 @Override
597 public void closePath() {
598 finishPath();
599
600 out.closePath();
601 }
602
603 @Override
604 public void moveTo(final float x0, final float y0) {
605 finishPath();
606
607 final int outcode = Helpers.outcode(x0, y0, clipRect);
608 this.cOutCode = outcode;
609 this.outside = false;
610 out.moveTo(x0, y0);
611 }
612
613 @Override
614 public void lineTo(final float xe, final float ye) {
615 final int outcode0 = this.cOutCode;
616 final int outcode1 = Helpers.outcode(xe, ye, clipRect);
617 this.cOutCode = outcode1;
618
619 final int sideCode = (outcode0 & outcode1);
620
621 // basic rejection criteria:
622 if (sideCode == 0) {
623 this.gOutCode = 0;
624 } else {
625 this.gOutCode &= sideCode;
626 // keep last point coordinate before entering the clip again:
627 this.outside = true;
628 this.cx0 = xe;
629 this.cy0 = ye;
630
631 clip(sideCode, outcode0, outcode1);
632 return;
633 }
634 if (outside) {
635 finish();
636 }
637 // clipping disabled:
638 out.lineTo(xe, ye);
639 }
640
641 private void clip(final int sideCode,
642 final int outcode0,
643 final int outcode1)
644 {
645 // corner or cross-boundary on left or right side:
646 if ((outcode0 != outcode1)
647 && ((sideCode & MarlinConst.OUTCODE_MASK_L_R) != 0))
648 {
649 // combine outcodes:
650 final int mergeCode = (outcode0 | outcode1);
651 final int tbCode = mergeCode & MarlinConst.OUTCODE_MASK_T_B;
652 final int lrCode = mergeCode & MarlinConst.OUTCODE_MASK_L_R;
653 final int off = (lrCode == MarlinConst.OUTCODE_LEFT) ? 0 : 2;
654
655 // add corners to outside stack:
656 switch (tbCode) {
657 case MarlinConst.OUTCODE_TOP:
658 // System.out.println("TOP "+ ((off == 0) ? "LEFT" : "RIGHT"));
659 stack.push(off); // top
660 return;
661 case MarlinConst.OUTCODE_BOTTOM:
662 // System.out.println("BOTTOM "+ ((off == 0) ? "LEFT" : "RIGHT"));
663 stack.push(off + 1); // bottom
664 return;
665 default:
666 // both TOP / BOTTOM:
667 if ((outcode0 & MarlinConst.OUTCODE_TOP) != 0) {
668 // System.out.println("TOP + BOTTOM "+ ((off == 0) ? "LEFT" : "RIGHT"));
669 // top to bottom
670 stack.push(off); // top
671 stack.push(off + 1); // bottom
672 } else {
673 // System.out.println("BOTTOM + TOP "+ ((off == 0) ? "LEFT" : "RIGHT"));
674 // bottom to top
675 stack.push(off + 1); // bottom
676 stack.push(off); // top
677 }
678 }
679 }
680 }
681
682 @Override
683 public void curveTo(final float x1, final float y1,
684 final float x2, final float y2,
685 final float xe, final float ye)
686 {
687 final int outcode0 = this.cOutCode;
688 final int outcode3 = Helpers.outcode(xe, ye, clipRect);
689 this.cOutCode = outcode3;
690
691 int sideCode = outcode0 & outcode3;
692
693 if (sideCode == 0) {
694 this.gOutCode = 0;
695 } else {
696 sideCode &= Helpers.outcode(x1, y1, clipRect);
697 sideCode &= Helpers.outcode(x2, y2, clipRect);
698 this.gOutCode &= sideCode;
699
700 // basic rejection criteria:
701 if (sideCode != 0) {
702 // keep last point coordinate before entering the clip again:
703 this.outside = true;
704 this.cx0 = xe;
705 this.cy0 = ye;
706
707 clip(sideCode, outcode0, outcode3);
708 return;
709 }
710 }
711 if (outside) {
712 finish();
713 }
714 // clipping disabled:
715 out.curveTo(x1, y1, x2, y2, xe, ye);
716 }
717
718 @Override
719 public void quadTo(final float x1, final float y1,
720 final float xe, final float ye)
721 {
722 final int outcode0 = this.cOutCode;
723 final int outcode2 = Helpers.outcode(xe, ye, clipRect);
724 this.cOutCode = outcode2;
725
726 int sideCode = outcode0 & outcode2;
727
728 if (sideCode == 0) {
729 this.gOutCode = 0;
730 } else {
731 sideCode &= Helpers.outcode(x1, y1, clipRect);
732 this.gOutCode &= sideCode;
733
734 // basic rejection criteria:
735 if (sideCode != 0) {
736 // keep last point coordinate before entering the clip again:
737 this.outside = true;
738 this.cx0 = xe;
739 this.cy0 = ye;
740
741 clip(sideCode, outcode0, outcode2);
742 return;
743 }
744 }
745 if (outside) {
746 finish();
747 }
748 // clipping disabled:
749 out.quadTo(x1, y1, xe, ye);
750 }
751
752 @Override
753 public long getNativeConsumer() {
754 throw new InternalError("Not using a native peer");
755 }
756 }
757
758 static final class PathTracer implements PathConsumer2D {
759 private final String prefix;
760 private PathConsumer2D out;
761
762 PathTracer(String name) {
763 this.prefix = name + ": ";
764 }
765
766 PathTracer init(PathConsumer2D out) {
767 this.out = out;
768 return this; // fluent API
769 }
770
771 @Override
772 public void moveTo(float x0, float y0) {
773 log("moveTo (" + x0 + ", " + y0 + ')');
774 out.moveTo(x0, y0);
775 }
776
777 @Override
778 public void lineTo(float x1, float y1) {
779 log("lineTo (" + x1 + ", " + y1 + ')');
780 out.lineTo(x1, y1);
781 }
782
783 @Override
784 public void curveTo(float x1, float y1,
785 float x2, float y2,
786 float x3, float y3)
787 {
788 log("curveTo P1(" + x1 + ", " + y1 + ") P2(" + x2 + ", " + y2 + ") P3(" + x3 + ", " + y3 + ')');
789 out.curveTo(x1, y1, x2, y2, x3, y3);
790 }
791
792 @Override
793 public void quadTo(float x1, float y1, float x2, float y2) {
794 log("quadTo P1(" + x1 + ", " + y1 + ") P2(" + x2 + ", " + y2 + ')');
795 out.quadTo(x1, y1, x2, y2);
796 }
797
798 @Override
799 public void closePath() {
800 log("closePath");
801 out.closePath();
802 }
803
804 @Override
805 public void pathDone() {
806 log("pathDone");
807 out.pathDone();
808 }
809
810 private void log(final String message) {
811 System.out.println(prefix + message);
812 }
813
814 @Override
815 public long getNativeConsumer() {
816 throw new InternalError("Not using a native peer");
817 }
818 }
819 }
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