Fix #27224: Extrude Repeat Mesh doesn't have options

Poll function was too strict for this case that's why there was
no options in operator panel.

Additional changes:
- Added 'direction' parameter to operator so now extruding
  could be made from script by providing direction vector.
- Fill this direction vection in operator's invoke functions
  so abjusting offset/steps in operator panel gives better visual
  feedback -- direction stays unchanged so user could easily see
  final result.
- Made some tweaks to soft limits, so adjusting values by mouse
  drag isn't such confusing now.

Tested in normal mode (from 3d view), as script and in background mode.
Haven't noticed any regressions.

1 files changed, 19 insertions, 10 deletions

diff --git a/source/blender/editors/mesh/editmesh_tools.c b/source/blender/editors/mesh/editmesh_tools.c
index 5901a36980c..a66c72bf329 100644
--- a/source/blender/editors/mesh/editmesh_tools.c
+++ b/source/blender/editors/mesh/editmesh_tools.c
@@ -891,13 +891,11 @@ void MESH_OT_split(wmOperatorType *ot)
 }
 
 
-static int extrude_repeat_mesh(bContext *C, wmOperator *op)
+static int extrude_repeat_mesh_exec(bContext *C, wmOperator *op)
 {
 	Object *obedit= CTX_data_edit_object(C);
 	EditMesh *em= BKE_mesh_get_editmesh((Mesh *)obedit->data);
 
-	RegionView3D *rv3d = ED_view3d_context_rv3d(C);
-
 	int steps = RNA_int_get(op->ptr,"steps");
 
 	float offs = RNA_float_get(op->ptr,"offset");
@@ -906,9 +904,7 @@ static int extrude_repeat_mesh(bContext *C, wmOperator *op)
 	short a;
 
 	/* dvec */
-	dvec[0]= rv3d->persinv[2][0];
-	dvec[1]= rv3d->persinv[2][1];
-	dvec[2]= rv3d->persinv[2][2];
+	RNA_float_get_array(op->ptr, "direction", dvec);
 	normalize_v3(dvec);
 	dvec[0]*= offs;
 	dvec[1]*= offs;
@@ -935,6 +931,17 @@ static int extrude_repeat_mesh(bContext *C, wmOperator *op)
 	return OPERATOR_FINISHED;
 }
 
+/* get center and axis, in global coords */
+static int extrude_repeat_mesh_invoke(bContext *C, wmOperator *op, wmEvent *UNUSED(event))
+{
+	RegionView3D *rv3d= ED_view3d_context_rv3d(C);
+
+	if(rv3d)
+		RNA_float_set_array(op->ptr, "direction", rv3d->persinv[2]);
+
+	return extrude_repeat_mesh_exec(C, op);
+}
+
 void MESH_OT_extrude_repeat(wmOperatorType *ot)
 {
 	/* identifiers */
@@ -943,15 +950,17 @@ void MESH_OT_extrude_repeat(wmOperatorType *ot)
 	ot->idname= "MESH_OT_extrude_repeat";
 
 	/* api callbacks */
-	ot->exec= extrude_repeat_mesh;
-	ot->poll= ED_operator_editmesh_region_view3d;
+	ot->invoke= extrude_repeat_mesh_invoke;
+	ot->exec= extrude_repeat_mesh_exec;
+	ot->poll= ED_operator_editmesh;
 
 	/* flags */
 	ot->flag= OPTYPE_REGISTER|OPTYPE_UNDO;
 
 	/* props */
-	RNA_def_float(ot->srna, "offset", 2.0f, 0.0f, 100.0f, "Offset", "", 0.0f, FLT_MAX);
-	RNA_def_int(ot->srna, "steps", 10, 0, 180, "Steps", "", 0, INT_MAX);
+	RNA_def_float(ot->srna, "offset", 2.0f, 0.0f, 100.0f, "Offset", "", 0.0f, 100.0f);
+	RNA_def_int(ot->srna, "steps", 10, 0, 180, "Steps", "", 0, 180);
+	RNA_def_float_vector(ot->srna, "direction", 3, NULL, -FLT_MAX, FLT_MAX, "Direction", "Direction of extrude", -FLT_MAX, FLT_MAX);
 }
 
 /* ************************** spin operator ******************** */