Add 'winding style' control, allowing the user to specify how regions are filled in.

[synfig.git] / synfig-core / trunk / src / synfig / layer_shape.h

diff --git a/synfig-core/trunk/src/synfig/layer_shape.h b/synfig-core/trunk/src/synfig/layer_shape.h
index 69a285b..d083cee 100644 (file)
--- a/synfig-core/trunk/src/synfig/layer_shape.h
+++ b/synfig-core/trunk/src/synfig/layer_shape.h
@@ -48,6 +48,14 @@ class Layer_Shape : public Layer_Composite, public Layer_NoDeform
 {
        SYNFIG_LAYER_MODULE_EXT
 
+       enum WindingStyle
+       {
+           WINDING_NON_ZERO=0,                 //!< less than -1 --> 1;  -1 --> 1;   0 --> 0;   1 --> 1;  greater than 1 --> 1
+           WINDING_EVEN_ODD=1,                 //!< add or subtract multiples of 2 to get into range -1:1, then as above
+
+           WINDING_END=2                               //!< \internal
+       };
+
 private:
 
        //internal cacheing
@@ -63,6 +71,7 @@ private:
 
        int             blurtype;
        Real    feather;
+       WindingStyle winding_style;
 
        std::vector< char >     bytestream;