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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "gm.h"
      9 #include "SkCanvas.h"
     10 #include "SkPath.h"
     11 #include "SkParsePath.h"
     12 #include "SkDashPathEffect.h"
     13 
     14 /*
     15  *  Inspired by http://code.google.com/p/chromium/issues/detail?id=112145
     16  */
     17 static void flower(SkCanvas* canvas, const SkPath& path, SkScalar intervals[2],
     18                    SkPaint::Join join) {
     19     SkPaint paint;
     20     paint.setAntiAlias(true);
     21     paint.setStyle(SkPaint::kStroke_Style);
     22     paint.setStrokeJoin(join);
     23     paint.setStrokeWidth(42);
     24     canvas->drawPath(path, paint);
     25 
     26     paint.setColor(SK_ColorRED);
     27     paint.setStrokeWidth(21);
     28     paint.setPathEffect(SkDashPathEffect::Make(intervals, 2, 0));
     29     canvas->drawPath(path, paint);
     30 
     31     paint.setColor(SK_ColorGREEN);
     32     paint.setPathEffect(nullptr);
     33     paint.setStrokeWidth(0);
     34     canvas->drawPath(path, paint);
     35 }
     36 
     37 DEF_SIMPLE_GM(dashcubics, canvas, 865, 750) {
     38         SkPath path;
     39         const char* d = "M 337,98 C 250,141 250,212 250,212 C 250,212 250,212 250,212"
     40         "C 250,212 250,212 250,212 C 250,212 250,141 163,98 C 156,195 217,231 217,231"
     41         "C 217,231 217,231 217,231 C 217,231 217,231 217,231 C 217,231 156,195 75,250"
     42         "C 156,305 217,269 217,269 C 217,269 217,269 217,269 C 217,269 217,269 217,269"
     43         "C 217,269 156,305 163,402 C 250,359 250,288 250,288 C 250,288 250,288 250,288"
     44         "C 250,288 250,288 250,288 C 250,288 250,359 338,402 C 345,305 283,269 283,269"
     45         "C 283,269 283,269 283,269 C 283,269 283,269 283,269 C 283,269 345,305 425,250"
     46         "C 344,195 283,231 283,231 C 283,231 283,231 283,231 C 283,231 283,231 283,231"
     47         "C 283,231 344,195 338,98";
     48 
     49         SkParsePath::FromSVGString(d, &path);
     50             canvas->translate(-35.f, -55.f);
     51         for (int x = 0; x < 2; ++x) {
     52             for (int y = 0; y < 2; ++y) {
     53                 canvas->save();
     54                 canvas->translate(x * 430.f, y * 355.f);
     55                 SkScalar intervals[] = { 5 + (x ? 0 : 0.0001f + 0.0001f), 10 };
     56                 flower(canvas, path, intervals, y ? SkPaint::kDefault_Join : SkPaint::kRound_Join);
     57                 canvas->restore();
     58             }
     59         }
     60 }
     61