Canvas_drawImageRect_4.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Canvas_drawImageRect_4, 256, 64, false, 0)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Canvas_drawImageRect_4	,
		256	,
		64	,
		false	,
		0
	)

Definition at line 4 of file Canvas_drawImageRect_4.cpp.

                                                      {
void draw(SkCanvas* canvas) {
    uint32_t pixels[][2] = { { SK_ColorBLACK, SK_ColorWHITE },
                             { SK_ColorWHITE, SK_ColorBLACK } };
    SkBitmap bitmap;
    bitmap.installPixels(SkImageInfo::MakeN32Premul(2, 2),
            (void*) pixels, sizeof(pixels[0]));
    sk_sp<SkImage> image = bitmap.asImage();
    SkPaint paint;
    canvas->scale(4, 4);
    for (auto alpha : { 50, 100, 150, 255 } ) {
        paint.setAlpha(alpha);
        canvas->drawImageRect(image, SkRect::MakeWH(2, 2), SkRect::MakeWH(8, 8),
                              SkSamplingOptions(), &paint, SkCanvas::kStrict_SrcRectConstraint);
        canvas->translate(8, 0);
    }
}
}  // END FIDDLE