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/gm.h"
9 #include "include/core/SkCanvas.h"
10 #include "include/core/SkColor.h"
11 #include "include/core/SkPaint.h"
12 #include "include/core/SkPath.h"
13 #include "include/core/SkRefCnt.h"
14 #include "include/core/SkScalar.h"
15 #include "include/core/SkSurface.h"
16 #include "tools/ToolUtils.h"
17
18 #define ZOOM 32
19 #define SMALL_W 9
20 #define SMALL_H 3
21 #define REPEAT_LOOP 5
22
new_surface(int width,int height)23 static sk_sp<SkSurface> new_surface(int width, int height) {
24 return SkSurface::MakeRasterN32Premul(width, height);
25 }
26
draw_pixel_centers(SkCanvas * canvas)27 static void draw_pixel_centers(SkCanvas* canvas) {
28 SkPaint paint;
29 paint.setColor(ToolUtils::color_to_565(0xFF0088FF));
30 paint.setAntiAlias(true);
31
32 for (int y = 0; y < SMALL_H; ++y) {
33 for (int x = 0; x < SMALL_W; ++x) {
34 canvas->drawCircle(x + 0.5f, y + 0.5f, 1.5f / ZOOM, paint);
35 }
36 }
37 }
38
draw_fatpath(SkCanvas * canvas,SkSurface * surface,const SkPath & path)39 static void draw_fatpath(SkCanvas* canvas, SkSurface* surface, const SkPath& path) {
40 SkPaint paint;
41
42 surface->getCanvas()->clear(SK_ColorTRANSPARENT);
43 surface->getCanvas()->drawPath(path, paint);
44 surface->draw(canvas, 0, 0, nullptr);
45
46 paint.setAntiAlias(true);
47 paint.setColor(SK_ColorRED);
48 paint.setStyle(SkPaint::kStroke_Style);
49 canvas->drawPath(path, paint);
50
51 draw_pixel_centers(canvas);
52 }
53
DEF_SIMPLE_GM(fatpathfill,canvas,SMALL_W * ZOOM,SMALL_H * ZOOM * REPEAT_LOOP)54 DEF_SIMPLE_GM(fatpathfill, canvas,
55 SMALL_W * ZOOM,
56 SMALL_H * ZOOM * REPEAT_LOOP) {
57 auto surface(new_surface(SMALL_W, SMALL_H));
58
59 canvas->scale(ZOOM, ZOOM);
60
61 SkPaint paint;
62 paint.setStyle(SkPaint::kStroke_Style);
63 paint.setStrokeWidth(SK_Scalar1);
64
65 for (int i = 0; i < REPEAT_LOOP; ++i) {
66 SkPath line, path;
67 line.moveTo(1, 2);
68 line.lineTo(SkIntToScalar(4 + i), 1);
69 paint.getFillPath(line, &path);
70 draw_fatpath(canvas, surface.get(), path);
71
72 canvas->translate(0, SMALL_H);
73 }
74 }
75