Mtk-18 ▶ Mtk ▶ RegionIterator

MtkRegion is a yx banded region; sometimes its useful to iterate through such a region treating the start and end of each horizontal band in a distinct fashion.

Usage:

 MtkRegionIterator iter;
 for (mtk_region_iterator_init (&iter, region);
      !mtk_region_iterator_at_end (&iter);
      mtk_region_iterator_next (&iter))
 {
   [ Use iter.rectangle, iter.line_start, iter.line_end ]
 }
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