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/SkRect.h"
14 #include "include/core/SkScalar.h"
15 #include "include/core/SkSize.h"
16 #include "include/core/SkString.h"
17 #include "tools/ToolUtils.h"
18
inset(const SkRect & r)19 static SkRect inset(const SkRect& r) {
20 SkRect rect = r;
21 rect.inset(r.width() / 8, r.height() / 8);
22 return rect;
23 }
24
25 class PathInteriorGM : public skiagm::GM {
26 public:
PathInteriorGM()27 PathInteriorGM() {
28 this->setBGColor(0xFFDDDDDD);
29 }
30
31 protected:
onISize()32 SkISize onISize() override {
33 return SkISize::Make(770, 770);
34 }
35
onShortName()36 SkString onShortName() override {
37 return SkString("pathinterior");
38 }
39
show(SkCanvas * canvas,const SkPath & path)40 void show(SkCanvas* canvas, const SkPath& path) {
41 SkPaint paint;
42 paint.setAntiAlias(true);
43
44 SkRect rect;
45 #if 0
46 bool hasInterior = path.hasRectangularInterior(&rect);
47 #else
48 bool hasInterior = false;
49 #endif
50
51 paint.setColor(hasInterior ? ToolUtils::color_to_565(0xFF8888FF) : SK_ColorGRAY);
52 canvas->drawPath(path, paint);
53 paint.setStyle(SkPaint::kStroke_Style);
54 paint.setColor(SK_ColorRED);
55 canvas->drawPath(path, paint);
56
57 if (hasInterior) {
58 paint.setStyle(SkPaint::kFill_Style);
59 paint.setColor(0x8800FF00);
60 canvas->drawRect(rect, paint);
61 }
62 }
63
onDraw(SkCanvas * canvas)64 void onDraw(SkCanvas* canvas) override {
65 canvas->translate(8.5f, 8.5f);
66
67 const SkRect rect = { 0, 0, 80, 80 };
68 const SkScalar RAD = rect.width()/8;
69
70 int i = 0;
71 for (int insetFirst = 0; insetFirst <= 1; ++insetFirst) {
72 for (int doEvenOdd = 0; doEvenOdd <= 1; ++doEvenOdd) {
73 for (int outerRR = 0; outerRR <= 1; ++outerRR) {
74 for (int innerRR = 0; innerRR <= 1; ++innerRR) {
75 for (int outerCW = 0; outerCW <= 1; ++outerCW) {
76 for (int innerCW = 0; innerCW <= 1; ++innerCW) {
77 SkPath path;
78 path.setFillType(doEvenOdd ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType);
79 SkPath::Direction outerDir = outerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
80 SkPath::Direction innerDir = innerCW ? SkPath::kCW_Direction : SkPath::kCCW_Direction;
81
82 SkRect r = insetFirst ? inset(rect) : rect;
83 if (outerRR) {
84 path.addRoundRect(r, RAD, RAD, outerDir);
85 } else {
86 path.addRect(r, outerDir);
87 }
88 r = insetFirst ? rect : inset(rect);
89 if (innerRR) {
90 path.addRoundRect(r, RAD, RAD, innerDir);
91 } else {
92 path.addRect(r, innerDir);
93 }
94
95 SkScalar dx = (i / 8) * rect.width() * 6 / 5;
96 SkScalar dy = (i % 8) * rect.height() * 6 / 5;
97 i++;
98 path.offset(dx, dy);
99
100 this->show(canvas, path);
101 }
102 }
103 }
104 }
105 }
106 }
107 }
108
109 private:
110
111 typedef GM INHERITED;
112 };
113
114 //////////////////////////////////////////////////////////////////////////////
115
116 DEF_GM( return new PathInteriorGM; )
117