Pie Menus C code backend.

This commit merges the code in the pie-menu branch.

As per decisions taken the last few days, there are no pie menus
included and there will be an official add-on including overrides of
some keys with pie menus. However, people will now be able to use the
new code in python.

Full Documentation is in http://wiki.blender.org/index.php/Dev:Ref/

Thanks:
Campbell Barton, Dalai Felinto and Ton Roosendaal for the code review
and design comments

Jonathan Williamson, Pawel Lyczkowski, Pablo Vazquez among others for
suggestions during the development.

Special Thanks to Sean Olson, for his support, suggestions, testing and
merciless bugging so that I would finish the pie menu code. Without him
we wouldn't be here. Also to the rest of the developers of the original
python add-on, Patrick Moore and Dan Eicher and finally to Matt Ebb, who
did the research and first implementation and whose code I used to get
started.

1 files changed, 10 insertions, 1 deletions

diff --git a/source/blender/makesdna/DNA_userdef_types.h b/source/blender/makesdna/DNA_userdef_types.h
index 4240d85a74d..d1f5cc1eadd 100644
--- a/source/blender/makesdna/DNA_userdef_types.h
+++ b/source/blender/makesdna/DNA_userdef_types.h
@@ -162,7 +162,7 @@ typedef struct ThemeUI {
 	uiWidgetColors wcol_radio, wcol_option, wcol_toggle;
 	uiWidgetColors wcol_num, wcol_numslider;
 	uiWidgetColors wcol_menu, wcol_pulldown, wcol_menu_back, wcol_menu_item, wcol_tooltip;
-	uiWidgetColors wcol_box, wcol_scroll, wcol_progress, wcol_list_item;
+	uiWidgetColors wcol_box, wcol_scroll, wcol_progress, wcol_list_item, wcol_pie_menu;
 	
 	uiWidgetStateColors wcol_state;
 
@@ -534,6 +534,15 @@ typedef struct UserDef {
 	float fcu_inactive_alpha;	/* opacity of inactive F-Curves in F-Curve Editor */
 	float pixelsize;			/* private, set by GHOST, to multiply DPI with */
 
+	short pie_interaction_type;     /* if keeping a pie menu spawn button pressed after this time, it turns into
+	                             * a drag/release pie menu */
+	short pie_initial_timeout;  /* direction in the pie menu will always be calculated from the initial position
+	                             * within this time limit */
+	int pie_animation_timeout;
+	int pad2;
+	short pie_menu_radius;        /* pie menu radius */
+	short pie_menu_threshold;     /* pie menu distance from center before a direction is set */
+
 	struct WalkNavigation walk_navigation;
 } UserDef;