Cleaned the apply deform code in Blender. Now also using the modifier code.

Right now, it works for Meshes (all deformers including Curve) and for
Curve/Surfaces (only hooks).

More follows.

source/blender/blenkernel/BKE_lattice.h

@@ -51,7 +51,6 @@ void init_latt_deform(struct Object *oblatt, struct Object *ob);
 void calc_latt_deform(float *co);
 void end_latt_deform(void);
 int object_deform(struct Object *ob);
-int object_apply_deform(struct Object *ob);
 struct BPoint *latt_bp(struct Lattice *lt, int u, int v, int w);
 void outside_lattice(struct Lattice *lt);
 

source/blender/blenkernel/intern/deform.c

@@ -199,7 +199,7 @@ void hook_object_deform(Object *ob, int index, float *vec)
 
 
 /* modifiers: hooks, deform, softbody 
-   mode=='s' is start, 'e' end 
+   mode=='s' is start, 'e' is end , 'a' is apply
 */
 
 int mesh_modifier(Object *ob, char mode)
@@ -258,13 +258,17 @@ int mesh_modifier(Object *ob, char mode)
 		}
 		
 	}
-	else { // end
+	else if(mode=='e') { // end
 		if(mvert) {
-			MEM_freeN(me->mvert);
+			if(me->mvert) MEM_freeN(me->mvert);
 			me->mvert= mvert;
 			mvert= NULL;
 		}
 	}
+	else if(mode=='a') { // apply
+		if(mvert) MEM_freeN(mvert);
+		mvert= NULL;
+	}
 	
 	return done;
 }
@@ -327,11 +331,14 @@ int curve_modifier(Object *ob, char mode)
 			}
 		}
 	}
-	else {
+	else if(mode=='e') {
 		/* paste */
 		freeNurblist(&cu->nurb);
 		cu->nurb= nurb;
 	}
+	else if(mode=='a') {
+		freeNurblist(&nurb);
+	}
 	
 	return done;
 }

source/blender/blenkernel/intern/lattice.c

@@ -663,10 +663,6 @@ int object_deform(Object *ob)
 {
 	return _object_deform(ob, 0);
 }
-int object_apply_deform(Object *ob)
-{
-	return _object_deform(ob, 1);
-}
 
 
 BPoint *latt_bp(Lattice *lt, int u, int v, int w)

source/blender/include/BIF_editdeform.h

@@ -61,5 +61,7 @@ void remove_vert_defgroup (struct Object *ob, struct bDeformGroup  *dg,
 						   int vertnum);
 void create_dverts(Mesh *me);
 
+extern void object_apply_deform(struct Object *ob);
+
 #endif
 

source/blender/include/BIF_editlattice.h

@@ -33,7 +33,6 @@
 #ifndef BIF_EDITLATTICE_H
 #define BIF_EDITLATTICE_H
 
-void apply_lattice(void);
 void free_editLatt(void);
 void make_editLatt(void);
 void load_editLatt(void);

source/blender/src/editdeform.c

@@ -29,12 +29,14 @@
  *
  * ***** END GPL/BL DUAL LICENSE BLOCK *****
  * Creator-specific support for vertex deformation groups
+ * Added: apply deform function (ton)
  */
 
 #include <string.h>
 
 #include "MEM_guardedalloc.h"
 
+#include "DNA_curve_types.h"
 #include "DNA_mesh_types.h"
 #include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
@@ -44,6 +46,7 @@
 
 #include "BKE_global.h"
 #include "BKE_deform.h"
+#include "BKE_displist.h"
 #include "BKE_mesh.h"
 
 #include "BIF_editdeform.h"
@@ -645,3 +648,33 @@ void unique_vertexgroup_name (bDeformGroup *dg, Object *ob)
 		}
 	}	
 }
+
+/* ******************* other deform edit stuff ********** */
+
+void object_apply_deform(Object *ob)
+{
+	char *err= NULL;
+	
+	if(ob->type==OB_MESH) {
+		Mesh *me= ob->data;
+		if(me->id.us>1) {
+			err= "Can't apply deformation to Mesh with other users";
+		}
+		mesh_modifier(ob, 's'); // start
+		mesh_modifier(ob, 'a'); // apply and end
+		freedisplist(&ob->disp);
+	}
+	else if (ob->type==OB_CURVE || ob->type==OB_SURF) {
+		Curve *cu= ob->data;
+		if(cu->id.us>1) {
+			err= "Can't apply deformation to Curve with other users";
+		}
+		curve_modifier(ob, 's'); // start
+		curve_modifier(ob, 'a'); // apply and end
+		freedisplist(&ob->disp);
+	}
+
+	if(err) error(err);
+
+}
+

source/blender/src/editlattice.c

@@ -76,35 +76,8 @@
 
 #include "BKE_armature.h"
 
-void apply_lattice(void)
-{
-	Base *base;
-	Object *par;
-	
-	if(okee("Apply lattice deformation")==0) return;
-	
-	base= FIRSTBASE;
-	while(base) {
-		if TESTBASELIB(base) {
-			if( (par= base->object->parent) ) {
-				if(par->type==OB_LATTICE) {
-					object_apply_deform(base->object);
-					
-					base->object->parent= 0;
-				}
-			}
-		}
-		base= base->next;
-	}
-	
-	allqueue(REDRAWVIEW3D, 0);
-}
-
 /* ***************************** */
 
-
-
-
 void free_editLatt(void)
 {
 	if(editLatt) {

source/blender/src/editobject.c

@@ -812,9 +812,7 @@ void clear_parent(void)
 			}
 			
 			if(par) {
-				if(par->type==OB_LATTICE) makeDispList(base->object);
-				if(par->type==OB_IKA) makeDispList(base->object);
-				if(par->type==OB_ARMATURE) makeDispList(base->object);
+				makeDispList(base->object);	// just always..., checks are not available well (ton)
 			}
 		}
 		base= base->next;
@@ -2865,9 +2863,13 @@ void apply_object()
 		if(ob==0) return;
 		
 		if(ob->transflag & OB_DUPLI) make_duplilist_real();
-		else if(ob->parent && ob->parent->type==OB_LATTICE) apply_lattice();
-		
-		return;
+		else {
+			if(okee("Apply deformation")==0) return;
+			object_apply_deform(ob);
+			allqueue(REDRAWVIEW3D, 0);
+
+			return;
+		}
 	}
 
 	if(okee("Apply size and rotation")==0) return;

source/blender/src/toolbox.c

@@ -82,6 +82,7 @@
 #include "BIF_toolbox.h"
 #include "BIF_mywindow.h"
 #include "BIF_editarmature.h"
+#include "BIF_editdeform.h"
 #include "BIF_editfont.h"
 #include "BIF_editmesh.h"
 #include "BIF_editseq.h"
@@ -1943,8 +1944,7 @@ static void tb_do_transform_clearapply(void *arg, int event)
 			apply_object();
 			break;
 		case 4: /* apply deformation */
-			if (ob->parent && ob->parent->type==OB_LATTICE) apply_lattice();
-			else error("The active object is not the child of a lattice");
+			object_apply_deform(ob);
 			break;
 		case 5: /* make duplicates real */
 			if (ob->transflag & OB_DUPLI) make_duplilist_real();