зеркало из https://github.com/mozilla/moz-skia.git
70 строки
2.0 KiB
C++
70 строки
2.0 KiB
C++
/*
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* Copyright 2012 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 "gm.h"
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#include "SkMagnifierImageFilter.h"
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#include "SkRandom.h"
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#define WIDTH 500
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#define HEIGHT 500
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namespace skiagm {
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class ImageMagnifierGM : public GM {
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public:
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ImageMagnifierGM() {
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this->setBGColor(0xFF000000);
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}
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protected:
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virtual uint32_t onGetFlags() const SK_OVERRIDE {
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// Skip tiled drawing until https://code.google.com/p/skia/issues/detail?id=781 is fixed.
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return this->INHERITED::onGetFlags() | GM::kSkipTiled_Flag;
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}
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virtual SkString onShortName() SK_OVERRIDE {
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return SkString("imagemagnifier");
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}
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virtual SkISize onISize() SK_OVERRIDE {
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return make_isize(WIDTH, HEIGHT);
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}
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virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
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SkPaint paint;
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paint.setImageFilter(
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SkMagnifierImageFilter::Create(
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SkRect::MakeXYWH(SkIntToScalar(100), SkIntToScalar(100),
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SkIntToScalar(WIDTH / 2),
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SkIntToScalar(HEIGHT / 2)),
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100))->unref();
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canvas->saveLayer(NULL, &paint);
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paint.setAntiAlias(true);
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const char* str = "The quick brown fox jumped over the lazy dog.";
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SkRandom rand;
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for (int i = 0; i < 25; ++i) {
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int x = rand.nextULessThan(WIDTH);
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int y = rand.nextULessThan(HEIGHT);
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paint.setColor(rand.nextBits(24) | 0xFF000000);
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paint.setTextSize(rand.nextRangeScalar(0, 300));
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canvas->drawText(str, strlen(str), SkIntToScalar(x),
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SkIntToScalar(y), paint);
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}
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canvas->restore();
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}
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private:
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory(void*) { return new ImageMagnifierGM; }
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static GMRegistry reg(MyFactory);
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}
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