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/SkPathUtils.h"
14 #include "include/core/SkRefCnt.h"
15 #include "include/core/SkScalar.h"
16 #include "include/core/SkSurface.h"
17 #include "tools/ToolUtils.h"
18
19 #define ZOOM 32
20 #define SMALL_W 9
21 #define SMALL_H 3
22 #define REPEAT_LOOP 5
23
new_surface(int width,int height)24 static sk_sp<SkSurface> new_surface(int width, int height) {
25 return SkSurfaces::Raster(SkImageInfo::MakeN32Premul(width, height));
26 }
27
draw_pixel_centers(SkCanvas * canvas)28 static void draw_pixel_centers(SkCanvas* canvas) {
29 SkPaint paint;
30 paint.setColor(ToolUtils::color_to_565(0xFF0088FF));
31 paint.setAntiAlias(true);
32
33 for (int y = 0; y < SMALL_H; ++y) {
34 for (int x = 0; x < SMALL_W; ++x) {
35 canvas->drawCircle(x + 0.5f, y + 0.5f, 1.5f / ZOOM, paint);
36 }
37 }
38 }
39
draw_fatpath(SkCanvas * canvas,SkSurface * surface,const SkPath & path)40 static void draw_fatpath(SkCanvas* canvas, SkSurface* surface, const SkPath& path) {
41 SkPaint paint;
42
43 surface->getCanvas()->clear(SK_ColorTRANSPARENT);
44 surface->getCanvas()->drawPath(path, paint);
45 surface->draw(canvas, 0, 0);
46
47 paint.setAntiAlias(true);
48 paint.setColor(SK_ColorRED);
49 paint.setStyle(SkPaint::kStroke_Style);
50 canvas->drawPath(path, paint);
51
52 draw_pixel_centers(canvas);
53 }
54
DEF_SIMPLE_GM(fatpathfill,canvas,SMALL_W * ZOOM,SMALL_H * ZOOM * REPEAT_LOOP)55 DEF_SIMPLE_GM(fatpathfill, canvas,
56 SMALL_W * ZOOM,
57 SMALL_H * ZOOM * REPEAT_LOOP) {
58 auto surface(new_surface(SMALL_W, SMALL_H));
59
60 canvas->scale(ZOOM, ZOOM);
61
62 SkPaint paint;
63 paint.setStyle(SkPaint::kStroke_Style);
64 paint.setStrokeWidth(SK_Scalar1);
65
66 for (int i = 0; i < REPEAT_LOOP; ++i) {
67 SkPath line, path;
68 line.moveTo(1, 2);
69 line.lineTo(SkIntToScalar(4 + i), 1);
70 skpathutils::FillPathWithPaint(line, paint, &path);
71 draw_fatpath(canvas, surface.get(), path);
72
73 canvas->translate(0, SMALL_H);
74 }
75 }
76