61 lines
1.8 KiB
C++
61 lines
1.8 KiB
C++
/*
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* Copyright 2015 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 "SkCanvas.h"
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#include "SkShader.h"
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/** This GM draws with invalid paints. It should draw nothing other than the background. */
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class BadPaintGM : public skiagm::GM {
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public:
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BadPaintGM() {}
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protected:
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SkString onShortName() override { return SkString("badpaint"); }
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SkISize onISize() override { return SkISize::Make(100, 100); }
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void onOnceBeforeDraw() override {
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SkBitmap emptyBmp;
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SkBitmap blueBmp;
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blueBmp.allocN32Pixels(10, 10);
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blueBmp.eraseColor(SK_ColorBLUE);
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SkMatrix badMatrix;
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badMatrix.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0);
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// Empty bitmap.
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fPaints.push_back().setColor(SK_ColorGREEN);
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fPaints.back().setShader(SkShader::CreateBitmapShader(emptyBmp, SkShader::kClamp_TileMode,
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SkShader::kClamp_TileMode))->unref();
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// Non-invertible local matrix.
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fPaints.push_back().setColor(SK_ColorGREEN);
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fPaints.back().setShader(SkShader::CreateBitmapShader(blueBmp, SkShader::kClamp_TileMode,
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SkShader::kClamp_TileMode,
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&badMatrix))->unref();
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}
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void onDraw(SkCanvas* canvas) override {
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SkRect rect = SkRect::MakeXYWH(10, 10, 80, 80);
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for (int i = 0; i < fPaints.count(); ++i) {
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canvas->drawRect(rect, fPaints[i]);
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}
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}
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private:
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SkTArray<SkPaint> fPaints;
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typedef skiagm::GM INHERITED;
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};
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/////////////////////////////////////////////////////////////////////////////////////
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DEF_GM( return SkNEW(BadPaintGM); )
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