1 /*
2  * Copyright 2011 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 #include "SampleCode.h"
8 #include "SkView.h"
9 #include "SkCanvas.h"
10 #include "SkCornerPathEffect.h"
11 #include "SkGradientShader.h"
12 #include "SkPath.h"
13 #include "SkRegion.h"
14 #include "SkShader.h"
15 #include "SkUtils.h"
16 
17 class FillTypeView : public SampleView {
18     SkPath fPath;
19 public:
20     FillTypeView() {
21         const SkScalar radius = SkIntToScalar(45);
22         fPath.addCircle(SkIntToScalar(50), SkIntToScalar(50), radius);
23         fPath.addCircle(SkIntToScalar(100), SkIntToScalar(100), radius);
24 
25         this->setBGColor(0xFFDDDDDD);
26     }
27 
28 protected:
29     // overrides from SkEventSink
30     virtual bool onQuery(SkEvent* evt) {
31         if (SampleCode::TitleQ(*evt)) {
32             SampleCode::TitleR(evt, "FillType");
33             return true;
34         }
35         return this->INHERITED::onQuery(evt);
36     }
37 
38     void showPath(SkCanvas* canvas, int x, int y, SkPath::FillType ft,
39                   SkScalar scale, const SkPaint& paint) {
40 
41         const SkRect r = { 0, 0, SkIntToScalar(150), SkIntToScalar(150) };
42 
43         canvas->save();
44         canvas->translate(SkIntToScalar(x), SkIntToScalar(y));
45         canvas->clipRect(r);
46         canvas->drawColor(SK_ColorWHITE);
47         fPath.setFillType(ft);
48         canvas->translate(r.centerX(), r.centerY());
49         canvas->scale(scale, scale);
50         canvas->translate(-r.centerX(), -r.centerY());
51         canvas->drawPath(fPath, paint);
52         canvas->restore();
53     }
54 
55     void showFour(SkCanvas* canvas, SkScalar scale, const SkPaint& paint) {
56         showPath(canvas,   0,   0, SkPath::kWinding_FillType,
57                  scale, paint);
58         showPath(canvas, 200,   0, SkPath::kEvenOdd_FillType,
59                  scale, paint);
60         showPath(canvas,  00, 200, SkPath::kInverseWinding_FillType,
61                  scale, paint);
62         showPath(canvas, 200, 200, SkPath::kInverseEvenOdd_FillType,
63                  scale, paint);
64     }
65 
66     virtual void onDrawContent(SkCanvas* canvas) {
67         canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
68 
69         SkPaint paint;
70         const SkScalar scale = SkIntToScalar(5)/4;
71 
72         paint.setAntiAlias(false);
73         paint.setColor(0x8000FF00);
74 
75         showFour(canvas, SK_Scalar1, paint);
76         canvas->translate(SkIntToScalar(450), 0);
77         showFour(canvas, scale, paint);
78 
79         paint.setAntiAlias(true);
80 
81         canvas->translate(SkIntToScalar(-450), SkIntToScalar(450));
82         showFour(canvas, SK_Scalar1, paint);
83         canvas->translate(SkIntToScalar(450), 0);
84         showFour(canvas, scale, paint);
85     }
86 
87 private:
88     typedef SampleView INHERITED;
89 };
90 
91 //////////////////////////////////////////////////////////////////////////////
92 
93 static SkView* MyFactory() { return new FillTypeView; }
94 static SkViewRegister reg(MyFactory);
95