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 "SkBlurMaskFilter.h"
10 #include "SkCanvas.h"
11 #include "SkGraphics.h"
12 #include "SkLayerDrawLooper.h"
13 #include "SkPath.h"
14 #include "SkRandom.h"
15
inset(const SkRect & r)16 static SkRect inset(const SkRect& r) {
17 SkRect rect = r;
18 rect.inset(r.width() / 8, r.height() / 8);
19 return rect;
20 }
21
22 class PathInteriorGM : public skiagm::GM {
23 public:
PathInteriorGM()24 PathInteriorGM() {
25 this->setBGColor(sk_tool_utils::color_to_565(0xFFDDDDDD));
26 }
27
28 protected:
onISize()29 SkISize onISize() override {
30 return SkISize::Make(770, 770);
31 }
32
onShortName()33 SkString onShortName() override {
34 return SkString("pathinterior");
35 }
36
show(SkCanvas * canvas,const SkPath & path)37 void show(SkCanvas* canvas, const SkPath& path) {
38 SkPaint paint;
39 paint.setAntiAlias(true);
40
41 SkRect rect;
42 #if 0
43 bool hasInterior = path.hasRectangularInterior(&rect);
44 #else
45 bool hasInterior = false;
46 #endif
47
48 paint.setColor(sk_tool_utils::color_to_565(hasInterior ? 0xFF8888FF : SK_ColorGRAY));
49 canvas->drawPath(path, paint);
50 paint.setStyle(SkPaint::kStroke_Style);
51 paint.setColor(SK_ColorRED);
52 canvas->drawPath(path, paint);
53
54 if (hasInterior) {
55 paint.setStyle(SkPaint::kFill_Style);
56 paint.setColor(0x8800FF00);
57 canvas->drawRect(rect, paint);
58 }
59 }
60
onDraw(SkCanvas * canvas)61 void onDraw(SkCanvas* canvas) override {
62 canvas->translate(8.5f, 8.5f);
63
64 const SkRect rect = { 0, 0, 80, 80 };
65 const SkScalar RAD = rect.width()/8;
66
67 int i = 0;
68 for (int insetFirst = 0; insetFirst <= 1; ++insetFirst) {
69 for (int doEvenOdd = 0; doEvenOdd <= 1; ++doEvenOdd) {
70 for (int outerRR = 0; outerRR <= 1; ++outerRR) {
71 for (int innerRR = 0; innerRR <= 1; ++innerRR) {
72 for (int outerCW = 0; outerCW <= 1; ++outerCW) {
73 for (int innerCW = 0; innerCW <= 1; ++innerCW) {
74 SkPath path;
75 path.setFillType(doEvenOdd ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType);
76 SkPath::Direction outerDir = outerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
77 SkPath::Direction innerDir = innerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
78
79 SkRect r = insetFirst ? inset(rect) : rect;
80 if (outerRR) {
81 path.addRoundRect(r, RAD, RAD, outerDir);
82 } else {
83 path.addRect(r, outerDir);
84 }
85 r = insetFirst ? rect : inset(rect);
86 if (innerRR) {
87 path.addRoundRect(r, RAD, RAD, innerDir);
88 } else {
89 path.addRect(r, innerDir);
90 }
91
92 SkScalar dx = (i / 8) * rect.width() * 6 / 5;
93 SkScalar dy = (i % 8) * rect.height() * 6 / 5;
94 i++;
95 path.offset(dx, dy);
96
97 this->show(canvas, path);
98 }
99 }
100 }
101 }
102 }
103 }
104 }
105
106 private:
107
108 typedef GM INHERITED;
109 };
110
111 //////////////////////////////////////////////////////////////////////////////
112
113 DEF_GM( return new PathInteriorGM; )
114