Region_Iterator_rewind.cpp File Reference

#include "tools/fiddle/examples.h"

Go to the source code of this file.

Functions
	REG_FIDDLE (Region_Iterator_rewind, 256, 256, true, 0)

Function Documentation

REG_FIDDLE()

REG_FIDDLE	(	Region_Iterator_rewind	,
		256	,
		256	,
		true	,
		0
	)

Definition at line 5 of file Region_Iterator_rewind.cpp.

                                                      {
void draw(SkCanvas* canvas) {
    auto debugster = [](const char* label, SkRegion::Iterator& iter, bool addRewind) -> void {
        if (addRewind) {
            bool success = iter.rewind();
            SkDebugf("%14s rewind success=%s\n", label, success ? "true" : "false");
        }
        auto r = iter.rect();
        SkDebugf("%14s rect={%d,%d,%d,%d}\n", label, r.fLeft, r.fTop, r.fRight, r.fBottom);
    };
    SkRegion::Iterator iter;
    debugster("empty iter", iter, true);
    SkRegion region;
    iter.reset(region);
    debugster("empty region", iter, true);
    region.setRect({1, 2, 3, 4});
    iter.reset(region);
    debugster("after set rect", iter, false);
    debugster("after rewind", iter, true);
}
}  // END FIDDLE