1
2 /*
3 * Copyright 2011 Google Inc.
4 *
5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file.
7 */
8 #include "SampleCode.h"
9 #include "SkView.h"
10 #include "SkCanvas.h"
11 #include "SkGraphics.h"
12 #include "SkRandom.h"
13 #include "SkGradientShader.h"
14 #include "SkPicture.h"
15
make_linear()16 static SkShader* make_linear() {
17 SkPoint pts[] = { 0, 0, SK_Scalar1/500, SK_Scalar1/500 };
18 SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
19 return SkGradientShader::CreateLinear(pts, colors, nullptr, 2,
20 SkShader::kClamp_TileMode);
21 }
22
23 class ClampView : public SampleView {
24 SkShader* fGrad;
25
26 public:
ClampView()27 ClampView() {
28 fGrad = make_linear();
29 }
30
~ClampView()31 virtual ~ClampView() {
32 fGrad->unref();
33 }
34
35 protected:
36 // overrides from SkEventSink
onQuery(SkEvent * evt)37 virtual bool onQuery(SkEvent* evt) {
38 if (SampleCode::TitleQ(*evt)) {
39 SampleCode::TitleR(evt, "Clamp");
40 return true;
41 }
42 return this->INHERITED::onQuery(evt);
43 }
44
onDrawContent(SkCanvas * canvas)45 virtual void onDrawContent(SkCanvas* canvas) {
46 SkPaint paint;
47 paint.setShader(fGrad);
48
49 // canvas->translate(this->width()/2, this->height()/2);
50 canvas->translate(64, 64);
51 canvas->drawPaint(paint);
52
53 SkPicture pic;
54 SkCanvas* c = pic.beginRecording(100, 100, 0);
55 SkCanvas::LayerIter layerIterator(c, false);
56 layerIterator.next();
57 layerIterator.done();
58 }
59
60 private:
61 typedef SampleView INHERITED;
62 };
63
64 //////////////////////////////////////////////////////////////////////////////
65
MyFactory()66 static SkView* MyFactory() { return new ClampView; }
67 static SkViewRegister reg(MyFactory);
68