fix for various crashes from incorrect poll functions.

- bevel had incorrect cancel when initialization failed which could crash (own mistake).
- main particle poll function didnt check if the area/region were NULL.
- some uv operators needed space image but didnt check for it. also use uv_ prefix for most operator functions.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/blender/editors/screen/screen_ops.c b/source/blender/editors/screen/screen_ops.c
index 68dd6c65e36..e49e7ce53ff 100644
--- a/source/blender/editors/screen/screen_ops.c
+++ b/source/blender/editors/screen/screen_ops.c
@@ -421,6 +421,13 @@ int ED_operator_uvedit(bContext *C)
 	return ED_space_image_show_uvedit(sima, obedit);
 }
 
+int ED_operator_uvedit_space_image(bContext *C)
+{
+	SpaceImage *sima = CTX_wm_space_image(C);
+	Object *obedit = CTX_data_edit_object(C);
+	return sima && ED_space_image_show_uvedit(sima, obedit);
+}
+
 int ED_operator_uvmap(bContext *C)
 {
 	Object *obedit = CTX_data_edit_object(C);