Path: [ #2789 ] Add a "copy size" constraint

At long last!
This new constraint is pretty simple. Following in the footsteps of such giants as Copy Loc and Copy Rot, it lets you constrain the size of an object/bone to another object/bone, with per axis restrictions.

1 files changed, 32 insertions, 7 deletions

diff --git a/source/blender/src/editconstraint.c b/source/blender/src/editconstraint.c
index a85f0dd835d..b3f2ac07c0b 100644
--- a/source/blender/src/editconstraint.c
+++ b/source/blender/src/editconstraint.c
@@ -266,6 +266,12 @@ char *get_con_subtarget_name(bConstraint *con, Object *target)
 			if (data->tar==target) return data->subtarget;
 		}
 		break;
+		case CONSTRAINT_TYPE_SIZELIKE:
+		{
+			bSizeLikeConstraint *data = con->data;
+			if (data->tar==target) return data->subtarget;
+		}
+		break;
 		case CONSTRAINT_TYPE_KINEMATIC:
 		{
 			bKinematicConstraint *data = con->data;
@@ -436,6 +442,24 @@ static void test_constraints (Object *owner, const char* substring)
 					}
 				}
 					break;
+				case CONSTRAINT_TYPE_SIZELIKE:
+				{
+					bSizeLikeConstraint *data = curcon->data;
+				
+					if (!exist_object(data->tar)){
+						data->tar = NULL;
+						curcon->flag |= CONSTRAINT_DISABLE;
+						break;
+					}
+					
+					if ( (data->tar == owner) &&
+						 (!get_named_bone(get_armature(owner), 
+										  data->subtarget))) {
+						curcon->flag |= CONSTRAINT_DISABLE;
+						break;
+					}
+				}
+					break;
 				case CONSTRAINT_TYPE_KINEMATIC:
 				{
 					bKinematicConstraint *data = curcon->data;
@@ -629,21 +653,21 @@ void add_constraint(int only_IK)
 	else {
 		if(pchanact) {
 			if(pchansel)
-				nr= pupmenu("Add Constraint to Active Bone%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
+				nr= pupmenu("Add Constraint to Active Bone%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
 			else if(obsel && obsel->type==OB_CURVE)
-				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5|Follow Path%x6|Stretch To%x7");
+				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5|Follow Path%x6|Stretch To%x7");
 			else if(obsel)
-				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
+				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
 			else
-				nr= pupmenu("Add Constraint to New Empty Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
+				nr= pupmenu("Add Constraint to New Empty Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5|Stretch To%x7");
 		}
 		else {
 			if(obsel && obsel->type==OB_CURVE)
-				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5|Follow Path%x6");
+				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5|Follow Path%x6");
 			else if(obsel)
-				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5");
+				nr= pupmenu("Add Constraint to Active Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5");
 			else
-				nr= pupmenu("Add Constraint to New Empty Object%t|Copy Location%x1|Copy Rotation%x2|Track To%x3|Floor%x4|Locked Track%x5");
+				nr= pupmenu("Add Constraint to New Empty Object%t|Copy Location%x1|Copy Rotation%x2|Copy Size%x8|Track To%x3|Floor%x4|Locked Track%x5");
 		}
 	}
 	
@@ -689,6 +713,7 @@ void add_constraint(int only_IK)
 		else if(nr==5) con = add_new_constraint(CONSTRAINT_TYPE_LOCKTRACK);
 		else if(nr==6) con = add_new_constraint(CONSTRAINT_TYPE_FOLLOWPATH);
 		else if(nr==7) con = add_new_constraint(CONSTRAINT_TYPE_STRETCHTO);
+		else if(nr==8) con = add_new_constraint(CONSTRAINT_TYPE_SIZELIKE);
 		
 		if(con==NULL) return;	/* paranoia */