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21
22
23#ifndef __com_sun_star_rendering_FillRule_idl__
24#define __com_sun_star_rendering_FillRule_idl__
25
26module com { module sun { module star { module rendering {
27
28/** Determines which algorithm to use when determining inside and
29    outside of filled poly-polygons.
30
31    @since OpenOffice 2.0
32 */
33published enum FillRule
34{
35    /** Fill every area, where, when travelling along a line, the
36        summed winding number (that is, -1 for a
37        counter-clockwise-oriented polygon, and +1 for a
38        clockwise-oriented) is non-zero.<p>
39
40        For example, a poly-polygon consisting of two concentric
41        circles with similar orientation is filled the same way as if
42        only the outer circle would exist. If both have opposite
43        orientation, then the filled representation looks the same as
44        if filled with the EVEN_ODD fill rule.<p>
45     */
46    NON_ZERO,
47
48    //-------------------------------------------------------------------------
49
50    /** Fill every area, where, when travelling along a line, an
51        uneven number of intersections with polygon edges have
52        happened.<p>
53     */
54    EVEN_ODD
55};
56
57}; }; }; };
58
59#endif
60