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 "SkBitmap.h"
10 #include "SkCanvas.h"
11 #include "SkShader.h"
12
make_bitmap(SkBitmap * bm)13 static void make_bitmap(SkBitmap* bm) {
14 const int W = 100;
15 const int H = 100;
16 bm->allocN32Pixels(W, H);
17
18 SkPaint paint;
19 SkCanvas canvas(*bm);
20 canvas.drawColor(SK_ColorWHITE);
21
22 const SkColor colors[] = {
23 SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorWHITE
24 };
25
26 for (int ix = 0; ix < W; ix += 1) {
27 SkScalar x = SkIntToScalar(ix) + SK_ScalarHalf;
28 paint.setColor(colors[ix & 3]);
29 canvas.drawLine(x, 0, x, SkIntToScalar(H - 1), paint);
30 }
31 paint.setColor(SK_ColorGRAY);
32 canvas.drawLine(0, 0, SkIntToScalar(W), 0, paint);
33 }
34
make_paint(SkPaint * paint,SkShader::TileMode tm)35 static void make_paint(SkPaint* paint, SkShader::TileMode tm) {
36 SkBitmap bm;
37 make_bitmap(&bm);
38
39 paint->setShader(SkShader::MakeBitmapShader(bm, tm, tm));
40 }
41
42 class RepeatTileView : public SampleView {
43 public:
RepeatTileView()44 RepeatTileView() {
45 this->setBGColor(SK_ColorGRAY);
46 }
47
48 protected:
49 // overrides from SkEventSink
onQuery(SkEvent * evt)50 bool onQuery(SkEvent* evt) override {
51 if (SampleCode::TitleQ(*evt)) {
52 SampleCode::TitleR(evt, "RepeatTile");
53 return true;
54 }
55 return this->INHERITED::onQuery(evt);
56 }
57
onDrawContent(SkCanvas * canvas)58 void onDrawContent(SkCanvas* canvas) override {
59 SkPaint paint;
60 make_paint(&paint, SkShader::kRepeat_TileMode);
61
62 // canvas->scale(SK_Scalar1*2, SK_Scalar1);
63 canvas->translate(SkIntToScalar(100), SkIntToScalar(100));
64 canvas->drawPaint(paint);
65 }
66
67 private:
68 typedef SampleView INHERITED;
69 };
70
71 //////////////////////////////////////////////////////////////////////////////
72
MyFactory()73 static SkView* MyFactory() { return new RepeatTileView; }
74 static SkViewRegister reg(MyFactory);
75