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 "SkSurface.h"
12
13 #define ZOOM 32
14 #define SMALL_W 9
15 #define SMALL_H 3
16 #define REPEAT_LOOP 5
17
new_surface(int width,int height)18 static SkSurface* new_surface(int width, int height) {
19 return SkSurface::NewRasterPMColor(width, height);
20 }
21
draw_pixel_centers(SkCanvas * canvas)22 static void draw_pixel_centers(SkCanvas* canvas) {
23 SkPaint paint;
24 paint.setColor(0xFF0088FF);
25 paint.setAntiAlias(true);
26
27 for (int y = 0; y < SMALL_H; ++y) {
28 for (int x = 0; x < SMALL_W; ++x) {
29 canvas->drawCircle(x + 0.5f, y + 0.5f, 1.5f / ZOOM, paint);
30 }
31 }
32 }
33
draw_fatpath(SkCanvas * canvas,SkSurface * surface,const SkPath paths[],int count)34 static void draw_fatpath(SkCanvas* canvas, SkSurface* surface,
35 const SkPath paths[], int count) {
36 SkPaint paint;
37
38 surface->getCanvas()->clear(SK_ColorTRANSPARENT);
39 for (int i = 0; i < count; ++i) {
40 surface->getCanvas()->drawPath(paths[i], paint);
41 }
42 surface->draw(canvas, 0, 0, NULL);
43
44 paint.setAntiAlias(true);
45 paint.setColor(SK_ColorRED);
46 paint.setStyle(SkPaint::kStroke_Style);
47 for (int j = 0; j < count; ++j) {
48 canvas->drawPath(paths[j], paint);
49 }
50
51 draw_pixel_centers(canvas);
52 }
53
54 class FatPathFillGM : public skiagm::GM {
55 public:
FatPathFillGM()56 FatPathFillGM() {}
57
58 protected:
onShortName()59 virtual SkString onShortName() {
60 return SkString("fatpathfill");
61 }
62
onISize()63 virtual SkISize onISize() {
64 return SkISize::Make(SMALL_W * ZOOM, SMALL_H * ZOOM * REPEAT_LOOP);
65 }
66
onDraw(SkCanvas * canvas)67 virtual void onDraw(SkCanvas* canvas) {
68 SkAutoTUnref<SkSurface> surface(new_surface(SMALL_W, SMALL_H));
69
70 canvas->scale(ZOOM, ZOOM);
71
72 SkPaint paint;
73 paint.setStyle(SkPaint::kStroke_Style);
74 paint.setStrokeWidth(SK_Scalar1);
75
76 for (int i = 0; i < REPEAT_LOOP; ++i) {
77 SkPath line, path;
78 line.moveTo(SkIntToScalar(1), SkIntToScalar(2));
79 line.lineTo(SkIntToScalar(4 + i), SkIntToScalar(1));
80 paint.getFillPath(line, &path);
81 draw_fatpath(canvas, surface, &path, 1);
82
83 canvas->translate(0, SMALL_H);
84 }
85 }
86
87 private:
88 typedef skiagm::GM INHERITED;
89 };
90
91 ///////////////////////////////////////////////////////////////////////////////
92
93 DEF_GM(return new FatPathFillGM;)
94