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65 lines
1.6 KiB
65 lines
1.6 KiB
4 months ago
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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 "Sample.h"
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#include "SkBitmap.h"
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#include "SkCanvas.h"
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#include "SkCornerPathEffect.h"
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#include "SkGradientShader.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 "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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virtual bool onQuery(Sample::Event* evt) {
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if (Sample::TitleQ(*evt)) {
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Sample::TitleR(evt, "WritePixels");
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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->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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typedef Sample INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_SAMPLE( return new WritePixelsView(); )
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