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 "SkShader.h" 11 #include "SkKey.h" 12 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 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: 44 RepeatTileView() { 45 this->setBGColor(SK_ColorGRAY); 46 } 47 48 protected: 49 // overrides from SkEventSink 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 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 SkView::Click* onFindClickHandler(SkScalar x, SkScalar y, unsigned modi) override { 68 this->inval(nullptr); 69 70 return this->INHERITED::onFindClickHandler(x, y, modi); 71 } 72 73 bool onClick(Click* click) override { 74 return this->INHERITED::onClick(click); 75 } 76 77 virtual bool handleKey(SkKey) { 78 this->inval(nullptr); 79 return true; 80 } 81 82 private: 83 typedef SampleView INHERITED; 84 }; 85 86 ////////////////////////////////////////////////////////////////////////////// 87 88 static SkView* MyFactory() { return new RepeatTileView; } 89 static SkViewRegister reg(MyFactory); 90
