82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/*
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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/gm.h"
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#include "include/core/SkCanvas.h"
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#include "include/core/SkFont.h"
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#include "include/core/SkImageFilter.h"
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#include "include/core/SkPaint.h"
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#include "include/core/SkRect.h"
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#include "include/core/SkScalar.h"
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#include "include/core/SkSize.h"
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#include "include/core/SkString.h"
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#include "include/core/SkTypeface.h"
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#include "include/core/SkTypes.h"
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#include "include/effects/SkImageFilters.h"
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#include "tools/ToolUtils.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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SkString onShortName() override {
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return SkString("imageblurtiled");
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}
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SkISize onISize() override {
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return SkISize::Make(WIDTH, HEIGHT);
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}
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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paint.setImageFilter(SkImageFilters::Blur(fSigmaX, fSigmaY, nullptr));
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const SkScalar tileSize = SkIntToScalar(128);
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SkRect bounds = canvas->getLocalClipBounds();
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for (SkScalar y = bounds.top(); y < bounds.bottom(); y += tileSize) {
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for (SkScalar x = bounds.left(); x < bounds.right(); x += tileSize) {
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canvas->save();
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canvas->clipRect(SkRect::MakeXYWH(x, y, tileSize, tileSize));
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canvas->saveLayer(nullptr, &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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SkFont font(ToolUtils::create_portable_typeface(), 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->drawString(str[i], 0, SkIntToScalar(posY), font, SkPaint());
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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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using INHERITED = GM;
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};
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//////////////////////////////////////////////////////////////////////////////
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DEF_GM(return new ImageBlurTiledGM(3.0f, 3.0f);)
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} // namespace skiagm
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