59 lines
1.5 KiB
C++
59 lines
1.5 KiB
C++
/*
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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 "include/core/SkBitmap.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkPath.h"
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#include "include/core/SkRegion.h"
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#include "include/core/SkShader.h"
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#include "include/effects/SkCornerPathEffect.h"
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#include "include/effects/SkGradientShader.h"
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#include "samplecode/Sample.h"
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#include "src/utils/SkUTF.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->allocN32Pixels(W, H);
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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 WritePixelsView : public Sample {
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SkPath fPath;
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public:
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WritePixelsView() {}
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protected:
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SkString name() override { return SkString("WritePixels"); }
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void onDrawContent(SkCanvas* canvas) override {
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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->writePixels(bitmap, 0, 0);
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canvas->writePixels(subset, 0, 0);
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}
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private:
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using INHERITED = Sample;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new WritePixelsView(); )
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