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 "SkGradientShader.h" 12 #include "SkGraphics.h" 13 #include "SkImageDecoder.h" 14 #include "SkPath.h" 15 #include "SkRegion.h" 16 #include "SkShader.h" 17 #include "SkUtils.h" 18 #include "SkXfermode.h" 19 #include "SkColorPriv.h" 20 #include "SkColorFilter.h" 21 #include "SkTime.h" 22 #include "SkTypeface.h" 23 24 #include "SkOSFile.h" 25 #include "SkStream.h" 26 27 #include "SkGpuDevice.h" 28 29 static void make_bitmap(SkBitmap* bitmap, GrContext* ctx) { 30 SkCanvas canvas; 31 32 if (ctx) { 33 SkDevice* dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, 64, 64); 34 canvas.setDevice(dev)->unref(); 35 *bitmap = dev->accessBitmap(false); 36 } else { 37 bitmap->setConfig(SkBitmap::kARGB_8888_Config, 64, 64); 38 bitmap->allocPixels(); 39 canvas.setBitmapDevice(*bitmap); 40 } 41 42 canvas.drawColor(SK_ColorRED); 43 SkPaint paint; 44 paint.setAntiAlias(true); 45 const SkPoint pts[] = { { 0, 0 }, { 64, 64 } }; 46 const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE }; 47 paint.setShader(SkGradientShader::CreateLinear(pts, colors, NULL, 2, 48 SkShader::kClamp_TileMode))->unref(); 49 canvas.drawCircle(32, 32, 32, paint); 50 } 51 52 class BitmapRectView : public SampleView { 53 public: 54 BitmapRectView() { 55 this->setBGColor(SK_ColorGRAY); 56 } 57 58 protected: 59 // overrides from SkEventSink 60 virtual bool onQuery(SkEvent* evt) { 61 if (SampleCode::TitleQ(*evt)) { 62 SampleCode::TitleR(evt, "BitmapRect"); 63 return true; 64 } 65 return this->INHERITED::onQuery(evt); 66 } 67 68 virtual void onDrawContent(SkCanvas* canvas) { 69 GrContext* ctx = SampleCode::GetGr(); 70 71 const SkIRect src[] = { 72 { 0, 0, 32, 32 }, 73 { 0, 0, 80, 80 }, 74 { 32, 32, 96, 96 }, 75 { -32, -32, 32, 32, } 76 }; 77 78 SkPaint paint; 79 paint.setStyle(SkPaint::kStroke_Style); 80 paint.setColor(ctx ? SK_ColorGREEN : SK_ColorYELLOW); 81 82 SkBitmap bitmap; 83 make_bitmap(&bitmap, ctx); 84 85 SkRect dstR = { 0, 200, 128, 380 }; 86 87 canvas->translate(16, 40); 88 for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) { 89 SkRect srcR; 90 srcR.set(src[i]); 91 92 canvas->drawBitmap(bitmap, 0, 0, &paint); 93 canvas->drawBitmapRect(bitmap, &src[i], dstR, &paint); 94 95 canvas->drawRect(dstR, paint); 96 canvas->drawRect(srcR, paint); 97 98 canvas->translate(160, 0); 99 } 100 } 101 102 private: 103 typedef SkView INHERITED; 104 }; 105 106 ////////////////////////////////////////////////////////////////////////////// 107 108 static SkView* MyFactory() { return new BitmapRectView; } 109 static SkViewRegister reg(MyFactory); 110 111