EditMode armature: mirrored editing feature.

- Option is in EditButtons, Armature panel.
- Currently only local X-axis mirror (seems to be default anyway)
- Transform then applies changes to the mirrored-name bone as well.
- Extrude: also does the counterpart Bone
- New: SHIFT+E extrude: extrudes 2 mirrored Bones out of a normal Bone.
  (creating names by appening _L and _R)

Or in short: you can now model a full rig without any manual naming!
Of course the names are not too nice... a couple of ideas to explore;
- rename a mirrored bone renames counterpart too
- allow in weightpaint mode to select Bones
- and of course mirrored edit in PoseMode (if that's useful...)

Important note: I tweaked the naming convention a bit; names like
Bone_L.005 and Bone_R.005 are considered counterparts. However, if
you use the "Flip names" option, the number extension is still
truncated.

BTW: Commits in Zr's code are fixes for gcc warnings. :)

1 files changed, 44 insertions, 11 deletions

diff --git a/source/blender/src/transform_generics.c b/source/blender/src/transform_generics.c
index 9a6839a8c32..32afcd6ea20 100755
--- a/source/blender/src/transform_generics.c
+++ b/source/blender/src/transform_generics.c
@@ -67,6 +67,7 @@
 #include "BSE_view.h"
 
 #include "BLI_arithb.h"
+#include "BLI_blenlib.h"
 
 #include "blendef.h"
 
@@ -109,22 +110,41 @@ void getViewVector(float coord[3], float vec[3]) {
 
 /* ************************** GENERICS **************************** */
 
+/* if editbone (partial) selected, copy data */
+/* context; editmode armature, with mirror editing enabled */
+static void transform_armature_mirror_update(void)
+{
+	EditBone *ebo, *eboflip;
+	
+	for (ebo=G.edbo.first; ebo; ebo=ebo->next) {
+		if(ebo->flag & (BONE_TIPSEL|BONE_ROOTSEL)) {
+			
+			eboflip= armature_bone_get_mirrored(ebo);
+			
+			if(eboflip) {
+				/* we assume X-axis flipping for now */
+				if(ebo->flag & BONE_TIPSEL) {
+					eboflip->tail[0]= -ebo->tail[0];
+					eboflip->tail[1]= ebo->tail[1];
+					eboflip->tail[2]= ebo->tail[2];
+				}
+				if(ebo->flag & BONE_ROOTSEL) {
+					eboflip->head[0]= -ebo->head[0];
+					eboflip->head[1]= ebo->head[1];
+					eboflip->head[2]= ebo->head[2];
+				}
+			}
+		}
+	}
+}
+
+
 /* called for objects updating while transform acts, once per redraw */
 void recalcData(TransInfo *t)
 {
 	Object *ob= OBACT;
 	
-	if(ob && (ob->flag & OB_POSEMODE)) {
-		bArmature *arm= ob->data;
-
-		/* old optimize trick... this enforces to bypass the depgraph */
-		if (!(arm->flag & ARM_DELAYDEFORM)) 
-			DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);  /* sets recalc flags */
-		else
-			where_is_pose(ob);
-	}
-	else if (G.obedit) {
-		
+	if (G.obedit) {
 		if (G.obedit->type == OB_MESH) {
 			DAG_object_flush_update(G.scene, G.obedit, OB_RECALC_DATA);  /* sets recalc flags */
 			
@@ -141,6 +161,7 @@ void recalcData(TransInfo *t)
 			}
 		}
 		else if(G.obedit->type==OB_ARMATURE){   /* no recalc flag, does pose */
+			bArmature *arm= G.obedit->data;
 			EditBone *ebo;
 			
 			/* Ensure all bones are correctly adjusted */
@@ -157,6 +178,9 @@ void recalcData(TransInfo *t)
 					}
 				}
 			}
+			if(arm->flag & ARM_MIRROR_EDIT) 
+				transform_armature_mirror_update();
+			
 		}
 		else if(G.obedit->type==OB_LATTICE) {
 			DAG_object_flush_update(G.scene, G.obedit, OB_RECALC_DATA);  /* sets recalc flags */
@@ -167,6 +191,15 @@ void recalcData(TransInfo *t)
 			DAG_object_flush_update(G.scene, G.obedit, OB_RECALC_DATA);  /* sets recalc flags */
 		}
 	}
+	else if(ob && (ob->flag & OB_POSEMODE)) {
+		bArmature *arm= ob->data;
+		
+		/* old optimize trick... this enforces to bypass the depgraph */
+		if (!(arm->flag & ARM_DELAYDEFORM)) 
+			DAG_object_flush_update(G.scene, ob, OB_RECALC_DATA);  /* sets recalc flags */
+		else
+			where_is_pose(ob);
+	}
 	else {
 		Base *base;