зеркало из https://github.com/mozilla/moz-skia.git
111 строки
2.9 KiB
C++
111 строки
2.9 KiB
C++
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/*
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* Copyright 2011 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkGradientShader.h"
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#include "SkGraphics.h"
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#include "SkImageDecoder.h"
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#include "SkPath.h"
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#include "SkRegion.h"
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#include "SkShader.h"
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#include "SkUtils.h"
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#include "SkXfermode.h"
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#include "SkColorPriv.h"
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#include "SkColorFilter.h"
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#include "SkTime.h"
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#include "SkTypeface.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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#include "SkGpuDevice.h"
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static void make_bitmap(SkBitmap* bitmap, GrContext* ctx) {
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SkCanvas canvas;
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if (ctx) {
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SkDevice* dev = new SkGpuDevice(ctx, SkBitmap::kARGB_8888_Config, 64, 64);
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canvas.setDevice(dev)->unref();
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*bitmap = dev->accessBitmap(false);
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} else {
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bitmap->setConfig(SkBitmap::kARGB_8888_Config, 64, 64);
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bitmap->allocPixels();
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canvas.setBitmapDevice(*bitmap);
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}
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canvas.drawColor(SK_ColorRED);
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SkPaint paint;
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paint.setAntiAlias(true);
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const SkPoint pts[] = { { 0, 0 }, { 64, 64 } };
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const SkColor colors[] = { SK_ColorWHITE, SK_ColorBLUE };
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paint.setShader(SkGradientShader::CreateLinear(pts, colors, NULL, 2,
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SkShader::kClamp_TileMode))->unref();
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canvas.drawCircle(32, 32, 32, paint);
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}
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class BitmapRectView : public SampleView {
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public:
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BitmapRectView() {
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this->setBGColor(SK_ColorGRAY);
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "BitmapRect");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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virtual void onDrawContent(SkCanvas* canvas) {
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GrContext* ctx = SampleCode::GetGr();
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const SkIRect src[] = {
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{ 0, 0, 32, 32 },
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{ 0, 0, 80, 80 },
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{ 32, 32, 96, 96 },
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{ -32, -32, 32, 32, }
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};
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SkPaint paint;
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paint.setStyle(SkPaint::kStroke_Style);
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paint.setColor(ctx ? SK_ColorGREEN : SK_ColorYELLOW);
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SkBitmap bitmap;
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make_bitmap(&bitmap, ctx);
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SkRect dstR = { 0, 200, 128, 380 };
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canvas->translate(16, 40);
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for (size_t i = 0; i < SK_ARRAY_COUNT(src); i++) {
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SkRect srcR;
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srcR.set(src[i]);
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canvas->drawBitmap(bitmap, 0, 0, &paint);
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canvas->drawBitmapRect(bitmap, &src[i], dstR, &paint);
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canvas->drawRect(dstR, paint);
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canvas->drawRect(srcR, paint);
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canvas->translate(160, 0);
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}
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new BitmapRectView; }
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static SkViewRegister reg(MyFactory);
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