2.5: Couple of small fun features

* Text window font size now supports full range 8-32, instead of
  just 12 and 15. I added BLF_fixed_width to get the character
  width of a fixed size font.

* Buttons do undo push on change again.

* Animated/Keyframe/Driver colors are now themable, with blend
  value to blend with original color. Set this to 0.5 now to
  give colors less constrast.
* Fix tooltip popping up with RMB menu open, and missing redraw.

* Autokeyframe now works for buttons.

* Driver expressions can be edited in place in a button now.
  (still some refresh issues).
* Also made python driver default for the Add Driver function
  in the RMB button. This way you don't have to open a Graph
  editor if you just want to type an expression. Also, the
  default expression then is the current value.

* Tooltips now show some extra info, not sure what is good to
  have, but currently I added:
  * Shortcut key for operator buttons.
  * Python struct & property name for RNA buttons.
  * Expression for driven values.
  * Value for text/search/pointer buttons.

1 files changed, 35 insertions, 2 deletions

diff --git a/source/blender/editors/animation/drivers.c b/source/blender/editors/animation/drivers.c
index fdce0965ce3..849e2d2eede 100644
--- a/source/blender/editors/animation/drivers.c
+++ b/source/blender/editors/animation/drivers.c
@@ -135,7 +135,7 @@ FCurve *verify_driver_fcurve (ID *id, const char rna_path[], const int array_ind
 /* Main Driver Management API calls:
  * 	Add a new driver for the specified property on the given ID block
  */
-short ANIM_add_driver (ID *id, const char rna_path[], int array_index, short flag)
+short ANIM_add_driver (ID *id, const char rna_path[], int array_index, short flag, int type)
 {	
 	PointerRNA id_ptr, ptr;
 	PropertyRNA *prop;
@@ -150,6 +150,39 @@ short ANIM_add_driver (ID *id, const char rna_path[], int array_index, short fla
 	
 	/* create F-Curve with Driver */
 	fcu= verify_driver_fcurve(id, rna_path, array_index, 1);
+
+	if(fcu && fcu->driver) {
+		fcu->driver->type= type;
+
+		/* fill in current value for python */
+		if(type == DRIVER_TYPE_PYTHON) {
+			PropertyType proptype= RNA_property_type(prop);
+			int array= RNA_property_array_length(prop);
+			char *expression= fcu->driver->expression;
+			int val, maxlen= sizeof(fcu->driver->expression);
+			float fval;
+
+			if(proptype == PROP_BOOLEAN) {
+				if(!array) val= RNA_property_boolean_get(&ptr, prop);
+				else val= RNA_property_boolean_get_index(&ptr, prop, array_index);
+
+				BLI_strncpy(expression, (val)? "True": "False", maxlen);
+			}
+			else if(proptype == PROP_INT) {
+				if(!array) val= RNA_property_int_get(&ptr, prop);
+				else val= RNA_property_int_get_index(&ptr, prop, array_index);
+
+				BLI_snprintf(expression, maxlen, "%d", val);
+			}
+			else if(proptype == PROP_FLOAT) {
+				if(!array) fval= RNA_property_float_get(&ptr, prop);
+				else fval= RNA_property_float_get_index(&ptr, prop, array_index);
+
+				BLI_snprintf(expression, maxlen, "%.3f", fval);
+			}
+
+		}
+	}
 	
 	/* done */
 	return (fcu != NULL);
@@ -217,7 +250,7 @@ static int add_driver_button_exec (bContext *C, wmOperator *op)
 				length= 1;
 			
 			for (a=0; a<length; a++)
-				success+= ANIM_add_driver(ptr.id.data, path, index+a, 0);
+				success+= ANIM_add_driver(ptr.id.data, path, index+a, 0, DRIVER_TYPE_PYTHON);
 			
 			MEM_freeN(path);
 		}