fd03db0fe9
used in http://codereview.appspot.com/4816058/ ('Automatic update of all copyright notices to reflect new license terms.') Note that the following files have been left alone, because they name copyright holders outside of Google. Please let me know if we need to update these files: experimental/CiCarbonSampleMain.c src/opts/memset16_neon.S src/opts/memset32_neon.S src/opts/opts_check_arm.cpp src/ports/SkDebug_brew.cpp src/ports/SkMemory_brew.cpp src/ports/SkOSFile_brew.cpp Review URL: http://codereview.appspot.com/4806054 git-svn-id: http://skia.googlecode.com/svn/trunk@1981 2bbb7eff-a529-9590-31e7-b0007b416f81
85 lines
2.4 KiB
C++
85 lines
2.4 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 "SkShader.h"
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#include "SkUtils.h"
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#include "SkDevice.h"
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static void create_bitmap(SkBitmap* bitmap) {
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const int W = 100;
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const int H = 100;
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bitmap->setConfig(SkBitmap::kARGB_8888_Config, W, H);
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bitmap->allocPixels();
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SkCanvas canvas(*bitmap);
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canvas.drawColor(SK_ColorRED);
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SkPaint paint;
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paint.setColor(SK_ColorBLUE);
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canvas.drawCircle(SkIntToScalar(W)/2, SkIntToScalar(H)/2, SkIntToScalar(W)/2, paint);
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}
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class DrawBitmapView : public SampleView {
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SkPath fPath;
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public:
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DrawBitmapView() {}
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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, "DrawBitmap");
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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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SkBitmap bitmap;
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create_bitmap(&bitmap);
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int x = bitmap.width() / 2;
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int y = bitmap.height() / 2;
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SkBitmap subset;
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bitmap.extractSubset(&subset, SkIRect::MakeXYWH(x, y, x, y));
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canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
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canvas->drawBitmap(bitmap, 0, 0);
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canvas->drawBitmap(subset, 0, 0);
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// Now do the same but with a device bitmap as source image
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SkRefPtr<SkDevice> primaryDevice(canvas->getDevice());
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SkRefPtr<SkDevice> secondDevice(canvas->createCompatibleDevice(
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SkBitmap::kARGB_8888_Config, bitmap.width(),
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bitmap.height(), true));
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secondDevice->unref();
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SkCanvas secondCanvas(secondDevice.get());
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secondCanvas.writePixels(bitmap, 0, 0);
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SkBitmap deviceBitmap = secondDevice->accessBitmap(false);
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SkBitmap deviceSubset;
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deviceBitmap.extractSubset(&deviceSubset,
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SkIRect::MakeXYWH(x, y, x, y));
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canvas->translate(SkIntToScalar(120), SkIntToScalar(0));
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canvas->drawBitmap(deviceBitmap, 0, 0);
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canvas->drawBitmap(deviceSubset, 0, 0);
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}
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private:
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typedef SampleView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new DrawBitmapView; }
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static SkViewRegister reg(MyFactory);
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