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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm.h"
#include "SkCanvas.h"
#include "SkShader.h"
/** This GM draws with invalid paints. It should draw nothing other than the background. */
class BadPaintGM : public skiagm::GM {
public:
BadPaintGM() {}
protected:
SkString onShortName() override { return SkString("badpaint"); }
SkISize onISize() override { return SkISize::Make(100, 100); }
void onOnceBeforeDraw() override {
SkBitmap emptyBmp;
SkBitmap blueBmp;
blueBmp.allocN32Pixels(10, 10);
blueBmp.eraseColor(SK_ColorBLUE);
SkMatrix badMatrix;
badMatrix.setAll(0, 0, 0, 0, 0, 0, 0, 0, 0);
// Empty bitmap.
fPaints.push_back().setColor(SK_ColorGREEN);
fPaints.back().setShader(SkShader::CreateBitmapShader(emptyBmp, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode))->unref();
// Non-invertible local matrix.
fPaints.push_back().setColor(SK_ColorGREEN);
fPaints.back().setShader(SkShader::CreateBitmapShader(blueBmp, SkShader::kClamp_TileMode,
SkShader::kClamp_TileMode,
&badMatrix))->unref();
}
void onDraw(SkCanvas* canvas) override {
SkRect rect = SkRect::MakeXYWH(10, 10, 80, 80);
for (int i = 0; i < fPaints.count(); ++i) {
canvas->drawRect(rect, fPaints[i]);
}
}
private:
SkTArray<SkPaint> fPaints;
typedef skiagm::GM INHERITED;
};
/////////////////////////////////////////////////////////////////////////////////////
DEF_GM(return new BadPaintGM;)
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