UI:

* Added a PanelType and HeaderType for registering panels
  and headers in regions. When the region draws, it will
  then automatically draw the ones that were registerd with
  poll and draw callbacks.

  Used for text header, properties and object buttons now.

1 files changed, 41 insertions, 0 deletions

diff --git a/source/blender/blenkernel/BKE_screen.h b/source/blender/blenkernel/BKE_screen.h
index dc1233e7db3..a25a7cff51d 100644
--- a/source/blender/blenkernel/BKE_screen.h
+++ b/source/blender/blenkernel/BKE_screen.h
@@ -36,11 +36,14 @@ struct bContext;
 struct bContextDataResult;
 struct bScreen;
 struct ListBase;
+struct Panel;
 struct ScrArea;
 struct SpaceType;
 struct wmNotifier;
 struct wmWindow;
 struct wmWindowManager;
+struct uiLayout;
+struct uiMenuItem;
 
 /* spacetype has everything stored to get an editor working, it gets initialized via 
    ED_spacetypes_init() in editors/area/spacetypes.c   */
@@ -122,12 +125,50 @@ typedef struct ARegionType {
 	/* custom drawing callbacks */
 	ListBase	drawcalls;
 
+	/* panels type definitions */
+	ListBase paneltypes;
+
+	/* header type definitions */
+	ListBase headertypes;
+
 	/* hardcoded constraints, smaller than these values region is not visible */
 	int			minsizex, minsizey;
 	/* default keymaps to add */
 	int			keymapflag;
 } ARegionType;
 
+/* panel types */
+
+typedef struct PanelType {
+	struct PanelType *next, *prev;
+	
+	char		*idname;	/* unique name */
+	char		*name;		/* for panel header */
+	char		*context;	/* for buttons window */
+
+	/* verify if the panel should draw or not */
+	int			(*poll)(const struct bContext *);
+	/* draw entirely, view changes should be handled here */
+	void		(*draw)(const struct bContext *, struct Panel *);	
+
+	/* python integration */
+	void		*py_data;
+} PanelType;
+
+/* header types */
+
+typedef struct HeaderType {
+	struct HeaderType *next, *prev;
+
+	char		*idname;	/* unique name */
+	char		*name;		/* for UI */
+
+	/* draw entirely, view changes should be handled here */
+	void		(*draw)(const struct bContext *, struct uiLayout *);	
+
+	/* python integration */
+	void		*py_data;
+} HeaderType;
 
 /* spacetypes */
 struct SpaceType *BKE_spacetype_from_id(int spaceid);