Dst_Atop.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Dst_Atop, 256, 256, false, 0)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Dst_Atop	,
		256	,
		256	,
		false	,
		0
	)

Definition at line 4 of file Dst_Atop.cpp.

                                         {
void draw(SkCanvas* canvas) {
    SkColor colors[] = { SK_ColorRED, SK_ColorBLUE };
    SkPoint horz[] = { { 0, 0 }, { 256, 0 } };
    SkPaint paint;
    paint.setShader(SkGradientShader::MakeLinear(horz, colors, nullptr, std::size(colors),
            SkTileMode::kClamp));
    canvas->drawPaint(paint);
    paint.setBlendMode(SkBlendMode::kDstATop);
    SkColor alphas[] = { SK_ColorBLACK, SK_ColorTRANSPARENT };
    SkPoint vert[] = { { 0, 0 }, { 0, 256 } };
    paint.setShader(SkGradientShader::MakeLinear(vert, alphas, nullptr, std::size(alphas),
            SkTileMode::kClamp));
    canvas->drawPaint(paint);
    canvas->clipRect( { 30, 30, 226, 226 } );
    canvas->drawColor(SkColorSetA(SK_ColorGREEN, 128), SkBlendMode::kSrcATop);
}
}  // END FIDDLE