[Bf-blender-cvs] [54f9e142dfd] blender2.8: RNA: Add Mesh.count_selected_items()

[Campbell Barton]

Commit: 54f9e142dfd38948b670acba9bf2e8571ab88d4a
Author: Campbell Barton
Date:   Mon Dec 17 18:15:41 2018 +1100
Branches: blender2.8
https://developer.blender.org/rB54f9e142dfd38948b670acba9bf2e8571ab88d4a

RNA: Add Mesh.count_selected_items()

Needed for context menu checks.

===================================================================

M	source/blender/blenkernel/BKE_mesh.h
M	source/blender/blenkernel/intern/mesh.c
M	source/blender/makesrna/intern/rna_mesh_api.c

===================================================================

diff --git a/source/blender/blenkernel/BKE_mesh.h b/source/blender/blenkernel/BKE_mesh.h
index 45cc6c30e4e..53c23af73c0 100644
--- a/source/blender/blenkernel/BKE_mesh.h
+++ b/source/blender/blenkernel/BKE_mesh.h
@@ -212,6 +212,8 @@ int  BKE_mesh_mselect_find(struct Mesh *me, int index, int type);
 int  BKE_mesh_mselect_active_get(struct Mesh *me, int type);
 void BKE_mesh_mselect_active_set(struct Mesh *me, int index, int type);
 
+void BKE_mesh_count_selected_items(const struct Mesh *mesh, int r_count[3]);
+
 void BKE_mesh_apply_vert_coords(struct Mesh *mesh, float (*vertCoords)[3]);
 void BKE_mesh_apply_vert_normals(struct Mesh *mesh, short (*vertNormals)[3]);
 
diff --git a/source/blender/blenkernel/intern/mesh.c b/source/blender/blenkernel/intern/mesh.c
index fcd0bfa9ceb..121aba43456 100644
--- a/source/blender/blenkernel/intern/mesh.c
+++ b/source/blender/blenkernel/intern/mesh.c
@@ -1563,6 +1563,18 @@ void BKE_mesh_mselect_active_set(Mesh *me, int index, int type)
 	           (me->mselect[me->totselect - 1].type  == type));
 }
 
+void BKE_mesh_count_selected_items(const Mesh *mesh, int r_count[3])
+{
+	r_count[0] = r_count[1] = r_count[2] = 0;
+	if (mesh->edit_btmesh) {
+		BMesh *bm = mesh->edit_btmesh->bm;
+		r_count[0] = bm->totvertsel;
+		r_count[1] = bm->totedgesel;
+		r_count[2] = bm->totfacesel;
+	}
+	/* We could support faces in paint modes. */
+
+}
 
 void BKE_mesh_apply_vert_coords(Mesh *mesh, float (*vertCoords)[3])
 {
diff --git a/source/blender/makesrna/intern/rna_mesh_api.c b/source/blender/makesrna/intern/rna_mesh_api.c
index a08555794d8..5f198d2e22e 100644
--- a/source/blender/makesrna/intern/rna_mesh_api.c
+++ b/source/blender/makesrna/intern/rna_mesh_api.c
@@ -222,6 +222,11 @@ static void rna_Mesh_update_gpu_tag(Mesh *mesh)
 	BKE_mesh_batch_cache_dirty_tag(mesh, BKE_MESH_BATCH_DIRTY_ALL);
 }
 
+static void rna_Mesh_count_selected_items(Mesh *mesh, int r_count[3])
+{
+	BKE_mesh_count_selected_items(mesh, r_count);
+}
+
 
 #else
 
@@ -332,6 +337,11 @@ void RNA_api_mesh(StructRNA *srna)
 	                                "invalid indices corrected (to default 0)");
 	parm = RNA_def_boolean(func, "result", 0, "Result", "");
 	RNA_def_function_return(func, parm);
+
+	func = RNA_def_function(srna, "count_selected_items", "rna_Mesh_count_selected_items ");
+	RNA_def_function_ui_description(func, "Return the number of selected items (vert, edge, face)");
+	parm = RNA_def_int_vector(func, "result", 3, NULL, 0, INT_MAX, "Result", NULL, 0, INT_MAX);
+	RNA_def_function_output(func, parm);
 }
 
 #endif