First commit of a new toolbox system.

Aim was to find a simple & easy system, script alike, to add and configure
a toolbox system, so that others can experiment, but also of course Python.

Summary:
- spacebar calls it up. SHIFT+A still does old toolbox
- hold left or rightmouse for 0.4 second, and it pops up as well
  this is experimental! Can be tweaked with Userdef var "ThresA"
- it is a little bit complete for Object mode only. Needs still work
  at information desing/structure level
- the code works like an engine, interpreting structs like this:

static TBitem addmenu_curve[]= {
{	0, "Bezier Curve", 	0, NULL},
{	0, "Bezier Circle", 1, NULL},
{	0, "NURBS Curve", 	2, NULL},
{	0, "NURBS Circle", 	3, NULL},
{	0, "Path", 			4, NULL},
{  -1, "", 			0, do_info_add_curvemenu}};

- first value is ICON code,
- then name
- return value
- pointer to optional child

last row has -1 to indicate its the last...
plus a callback to event function.

I also built an old toolbox style callback for this:

static TBitem tb_object_select[]= {
{	0, "Border Select|B", 	'b', NULL},
{	0, "(De)select All|A", 	'a', NULL},
{	0, "Linked...|Shift L", 	'L', NULL},
{	0, "Grouped...|Shift G", 	'G', NULL},
{  -1, "", 			0, tb_do_hotkey}};

here the return values are put back as hotkeys in mainqueue.

A mainloop can do all context switching, and build menus on the fly.
Meaning, it also allows other designs such as radials...

1 files changed, 13 insertions, 5 deletions

diff --git a/source/blender/include/BIF_interface.h b/source/blender/include/BIF_interface.h
index 60c5fab0e06..cd1d75dd13a 100644
--- a/source/blender/include/BIF_interface.h
+++ b/source/blender/include/BIF_interface.h
@@ -46,10 +46,13 @@ struct ScrArea;
 #define UI_EMBOSSX		0	/* for a python file, which i can't change.... duh! */
 
 /* uiBlock->direction */
-#define UI_TOP		0
-#define UI_DOWN		1
-#define UI_LEFT		2
-#define UI_RIGHT	3
+#define UI_TOP		1
+#define UI_DOWN		2
+#define UI_LEFT		4
+#define UI_RIGHT	8
+#define UI_DIRECTION	15
+#define UI_CENTRE		16
+#define UI_SHIFT_FLIPPED	32
 
 /* uiBlock->autofill */
 #define UI_BLOCK_COLLUMNS	1
@@ -85,11 +88,16 @@ struct ScrArea;
 #define UI_PNL_TO_MOUSE	128
 #define UI_PNL_UNSTOW	256
 
-/* definitions for icons (and their alignment) in buttons */
 /* warning the first 4 flags are internal */
+/* but->flag */
 #define UI_TEXT_LEFT	16
 #define UI_ICON_LEFT	32
 #define UI_ICON_RIGHT	64
+	/* control for button type block */
+#define UI_MAKE_TOP		128
+#define UI_MAKE_DOWN	256
+#define UI_MAKE_LEFT	512
+#define UI_MAKE_RIGHT	1024
 
 
 /* Button types */