Fix T39563: Tiny unit-display problem in constraint panels.

There is no good solution here, since RNA props can only have one type/unit.
Tried to find the less worse one - have different RNA props for same DNA value
(a bit like the angle/length for camera lens).

Also fixed two other issues with Transform conctraint:
* Angle were still in degrees (yes, another backward-compatibility breacking).
* Scale was absolute, unlike loc/rot.

Also cleaned up a bit the code, replaced some magic numbers by proper enums, ...

1 files changed, 28 insertions, 0 deletions

diff --git a/source/blender/blenloader/intern/versioning_270.c b/source/blender/blenloader/intern/versioning_270.c
index 8fadfa69fac..8f95d78ce1c 100644
--- a/source/blender/blenloader/intern/versioning_270.c
+++ b/source/blender/blenloader/intern/versioning_270.c
@@ -34,6 +34,7 @@
 /* allow readfile to use deprecated functionality */
 #define DNA_DEPRECATED_ALLOW
 
+#include "DNA_constraint_types.h"
 #include "DNA_curve_types.h"
 #include "DNA_sdna_types.h"
 #include "DNA_space_types.h"
@@ -48,6 +49,8 @@
 #include "BKE_main.h"
 #include "BKE_node.h"
 
+#include "BLI_math.h"
+
 #include "BLO_readfile.h"
 
 #include "readfile.h"
@@ -110,4 +113,29 @@ void blo_do_versions_270(FileData *fd, Library *UNUSED(lib), Main *main)
 			}
 		}
 	}
+
+	if (!MAIN_VERSION_ATLEAST(main, 270, 1)) {
+		Object *ob;
+
+		/* Update Transform constraint (another deg -> rad stuff). */
+		for (ob = main->object.first; ob; ob = ob->id.next) {
+			bConstraint *con;
+			for (con = ob->constraints.first; con; con = con->next) {
+				if (con->type == CONSTRAINT_TYPE_TRANSFORM) {
+					bTransformConstraint *data = (bTransformConstraint *)con->data;
+					const float deg_to_rad_f = DEG2RADF(1.0f);
+
+					if (data->from == TRANS_ROTATION) {
+						mul_v3_fl(data->from_min, deg_to_rad_f);
+						mul_v3_fl(data->from_max, deg_to_rad_f);
+					}
+
+					if (data->to == TRANS_ROTATION) {
+						mul_v3_fl(data->to_min, deg_to_rad_f);
+						mul_v3_fl(data->to_max, deg_to_rad_f);
+					}
+				}
+			}
+		}
+	}
 }