add option requested [#25598] projection surface snap issue

for retopo workflow you don't wan't to project the mesh onto its self, added option not to.

2 files changed, 9 insertions, 2 deletions

diff --git a/source/blender/editors/transform/transform.h b/source/blender/editors/transform/transform.h
index b0bd4ccc5eb..8e891aecfd9 100644
--- a/source/blender/editors/transform/transform.h
+++ b/source/blender/editors/transform/transform.h
@@ -95,7 +95,8 @@ typedef struct TransSnap {
 	short	modePoint;
 	short	modeSelect;
 	short	align;
-	short	project;
+	char	project;
+	char	project_self;
 	short	peel;
 	short  	status;
 	float	snapPoint[3]; /* snapping from this point */
diff --git a/source/blender/editors/transform/transform_snap.c b/source/blender/editors/transform/transform_snap.c
index 44de86c1e30..01e9f039368 100644
--- a/source/blender/editors/transform/transform_snap.c
+++ b/source/blender/editors/transform/transform_snap.c
@@ -392,7 +392,7 @@ static void initSnappingMode(TransInfo *t)
 			}
 			else
 			{
-				t->tsnap.modeSelect = SNAP_ALL;
+				t->tsnap.modeSelect = t->tsnap.project_self ? SNAP_ALL : SNAP_NOT_OBEDIT;
 			}
 		}
 		/* Particles edit mode*/
@@ -457,6 +457,11 @@ void initSnapping(TransInfo *t, wmOperator *op)
 			{
 				t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project");
 			}
+
+			if (RNA_struct_find_property(op->ptr, "use_snap_project_self"))
+			{
+				t->tsnap.project = RNA_boolean_get(op->ptr, "use_snap_project_self");
+			}
 		}
 	}
 	/* use scene defaults only when transform is modal */
@@ -468,6 +473,7 @@ void initSnapping(TransInfo *t, wmOperator *op)
 
 		t->tsnap.align = ((t->settings->snap_flag & SCE_SNAP_ROTATE) == SCE_SNAP_ROTATE);
 		t->tsnap.project = ((t->settings->snap_flag & SCE_SNAP_PROJECT) == SCE_SNAP_PROJECT);
+		t->tsnap.project_self = !((t->settings->snap_flag & SCE_SNAP_PROJECT_NO_SELF) == SCE_SNAP_PROJECT_NO_SELF);
 		t->tsnap.peel = ((t->settings->snap_flag & SCE_SNAP_PROJECT) == SCE_SNAP_PROJECT);
 	}