New: Write Protection for transform values.

You now can set, in NKEY Transform Properties Panel, per XYZ rot/loc/size,
a protection for Transform tools to not change these values anymore.
This now works for Objects or for Bones in PoseMode.

Usage is especially for character animation, to give Bones in a Pose
defaults for rotation axes, so you don't have to worry about the correct
limitations (or setup complex IK limits).
Of course, this feature doesn't influence the animation system.

As an extra also the Transform Widgets then draw less handles. Note this
is based on the actual locked value, and depends still on Manipulator
orientation whether it can be used really.

Implementation warning: I had to remove the 'return' in the middle of the
editobject.c compatible_eul() call. It now makes nice compatible eulers
when they're simple (single axis rotations). Unfortunately there was no
note in the code why it was ever removed...

ALso: fix for crash in using Crease Transform and Mirror modifier.

3 files changed, 16 insertions, 3 deletions

diff --git a/source/blender/makesdna/DNA_action_types.h b/source/blender/makesdna/DNA_action_types.h
index 06066200ead..edc961be779 100644
--- a/source/blender/makesdna/DNA_action_types.h
+++ b/source/blender/makesdna/DNA_action_types.h
@@ -49,6 +49,8 @@ typedef struct bPoseChannel {
 	short				constflag;  /* for quick detecting which constraints affect this channel */
 	short				ikflag;		/* settings for IK bones */
 	short				pathlen;	/* for drawing paths, the amount of frames */
+	short				protectflag;/* protect channels from being transformed */
+	short				pad, pad1, pad2;
 	
 	struct Bone			*bone;		/* set on read file or rebuild pose */
 	struct bPoseChannel *parent;	/* set on read file or rebuild pose */
diff --git a/source/blender/makesdna/DNA_object_types.h b/source/blender/makesdna/DNA_object_types.h
index 187aeb51dfe..86bcbbf791a 100644
--- a/source/blender/makesdna/DNA_object_types.h
+++ b/source/blender/makesdna/DNA_object_types.h
@@ -119,8 +119,8 @@ typedef struct Object {
 	
 	short transflag, ipoflag;	/* transformation and ipo settings */
 	short trackflag, upflag;
-	short nlaflag, pad;
-	short ipowin, scaflag;	/* ipowin: blocktype last ipowindow */
+	short nlaflag, protectflag;	/* nlaflag defines NLA override, protectflag is bits to lock transform */
+	short ipowin, scaflag;		/* ipowin: blocktype last ipowindow */
 	short scavisflag, boundtype;
 	
 	short dupon, dupoff, dupsta, dupend;
@@ -387,6 +387,17 @@ extern Object workob;
 /* ob->nlaflag */
 #define OB_NLA_OVERRIDE		1
 
+/* ob->protectflag */
+#define OB_LOCK_LOCX	1
+#define OB_LOCK_LOCY	2
+#define OB_LOCK_LOCZ	4
+#define OB_LOCK_ROTX	8
+#define OB_LOCK_ROTY	16
+#define OB_LOCK_ROTZ	32
+#define OB_LOCK_SIZEX	64
+#define OB_LOCK_SIZEY	128
+#define OB_LOCK_SIZEZ	256
+
 /* ob->softflag in DNA_object_force.h */
 
 #ifdef __cplusplus
diff --git a/source/blender/makesdna/DNA_view3d_types.h b/source/blender/makesdna/DNA_view3d_types.h
index f0fe608035a..b745a1f59e0 100644
--- a/source/blender/makesdna/DNA_view3d_types.h
+++ b/source/blender/makesdna/DNA_view3d_types.h
@@ -121,7 +121,7 @@ typedef struct View3D {
 	short modeselect, menunr, texnr;
 	
 	/* transform widget info */
-	short twtype, twmode, twflag, twpad;
+	short twtype, twmode, twflag, twdrawflag;
 	float twmat[4][4];
 	
 	/* user defined clipping planes */