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
19static sk_sp<SkSurface> new_surface(int width, int height) {
20    return SkSurface::MakeRasterN32Premul(width, height);
21}
22
23static 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
35static 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
50DEF_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