77 lines
2.2 KiB
C++
77 lines
2.2 KiB
C++
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/*
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* Copyright 2014 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 "SkBlurImageFilter.h"
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#include "SkRandom.h"
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#define WIDTH 640
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#define HEIGHT 480
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namespace skiagm {
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class ImageBlurTiledGM : public GM {
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public:
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ImageBlurTiledGM(SkScalar sigmaX, SkScalar sigmaY)
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: fSigmaX(sigmaX), fSigmaY(sigmaY) {
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}
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protected:
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virtual SkString onShortName() {
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return SkString("imageblurtiled");
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}
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virtual SkISize onISize() {
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return make_isize(WIDTH, HEIGHT);
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}
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virtual void onDraw(SkCanvas* canvas) {
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SkPaint paint;
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paint.setImageFilter(new SkBlurImageFilter(fSigmaX, fSigmaY))->unref();
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const SkScalar tile_size = SkIntToScalar(128);
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SkRect bounds;
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canvas->getClipBounds(&bounds);
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for (SkScalar y = bounds.top(); y < bounds.bottom(); y += tile_size) {
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for (SkScalar x = bounds.left(); x < bounds.right(); x += tile_size) {
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canvas->save();
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canvas->clipRect(SkRect::MakeXYWH(x, y, tile_size, tile_size));
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canvas->saveLayer(NULL, &paint);
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const char* str[] = {
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"The quick",
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"brown fox",
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"jumped over",
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"the lazy dog.",
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};
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SkPaint textPaint;
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textPaint.setAntiAlias(true);
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textPaint.setTextSize(SkIntToScalar(100));
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int posY = 0;
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for (unsigned i = 0; i < SK_ARRAY_COUNT(str); i++) {
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posY += 100;
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canvas->drawText(str[i], strlen(str[i]), SkIntToScalar(0),
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SkIntToScalar(posY), textPaint);
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}
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canvas->restore();
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canvas->restore();
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}
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}
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}
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private:
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SkScalar fSigmaX;
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SkScalar fSigmaY;
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typedef GM INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static GM* MyFactory1(void*) { return new ImageBlurTiledGM(3.0f, 3.0f); }
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static GMRegistry reg1(MyFactory1);
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}
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