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 "sk_tool_utils.h"
10 #include "SkCanvas.h"
11 #include "SkPath.h"
12 #include "SkSurface.h"
13
14 #define ZOOM 32
15 #define SMALL_W 9
16 #define SMALL_H 3
17 #define REPEAT_LOOP 5
18
new_surface(int width,int height)19 static sk_sp<SkSurface> new_surface(int width, int height) {
20 return SkSurface::MakeRasterN32Premul(width, height);
21 }
22
draw_pixel_centers(SkCanvas * canvas)23 static void draw_pixel_centers(SkCanvas* canvas) {
24 SkPaint paint;
25 paint.setColor(sk_tool_utils::color_to_565(0xFF0088FF));
26 paint.setAntiAlias(true);
27
28 for (int y = 0; y < SMALL_H; ++y) {
29 for (int x = 0; x < SMALL_W; ++x) {
30 canvas->drawCircle(x + 0.5f, y + 0.5f, 1.5f / ZOOM, paint);
31 }
32 }
33 }
34
draw_fatpath(SkCanvas * canvas,SkSurface * surface,const SkPath & path)35 static void draw_fatpath(SkCanvas* canvas, SkSurface* surface, const SkPath& path) {
36 SkPaint paint;
37
38 surface->getCanvas()->clear(SK_ColorTRANSPARENT);
39 surface->getCanvas()->drawPath(path, paint);
40 surface->draw(canvas, 0, 0, nullptr);
41
42 paint.setAntiAlias(true);
43 paint.setColor(SK_ColorRED);
44 paint.setStyle(SkPaint::kStroke_Style);
45 canvas->drawPath(path, paint);
46
47 draw_pixel_centers(canvas);
48 }
49
DEF_SIMPLE_GM(fatpathfill,canvas,SMALL_W * ZOOM,SMALL_H * ZOOM * REPEAT_LOOP)50 DEF_SIMPLE_GM(fatpathfill, canvas,
51 SMALL_W * ZOOM,
52 SMALL_H * ZOOM * REPEAT_LOOP) {
53 auto surface(new_surface(SMALL_W, SMALL_H));
54
55 canvas->scale(ZOOM, ZOOM);
56
57 SkPaint paint;
58 paint.setStyle(SkPaint::kStroke_Style);
59 paint.setStrokeWidth(SK_Scalar1);
60
61 for (int i = 0; i < REPEAT_LOOP; ++i) {
62 SkPath line, path;
63 line.moveTo(1, 2);
64 line.lineTo(SkIntToScalar(4 + i), 1);
65 paint.getFillPath(line, &path);
66 draw_fatpath(canvas, surface.get(), path);
67
68 canvas->translate(0, SMALL_H);
69 }
70 }
71