Index: trunk/src/buffer.c
===================================================================
--- trunk/src/buffer.c	(revision 28794)
+++ trunk/src/buffer.c	(revision 28795)
@@ -61,6 +61,8 @@
 #include "extobj.h"
 
 static pcb_opfunc_t AddBufferFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_add_to_buffer,
 	pcb_textop_add_to_buffer,
 	pcb_polyop_add_to_buffer,
@@ -74,6 +76,8 @@
 };
 
 static pcb_opfunc_t MoveBufferFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_move_buffer,
 	pcb_textop_move_buffer,
 	pcb_polyop_move_buffer,
Index: trunk/src/change.c
===================================================================
--- trunk/src/change.c	(revision 28794)
+++ trunk/src/change.c	(revision 28795)
@@ -56,6 +56,8 @@
 int defer_needs_update = 0;
 
 pcb_opfunc_t ChangeSizeFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_change_size,
 	pcb_textop_change_size,
 	pcb_polyop_change_clear,
@@ -69,6 +71,8 @@
 };
 
 pcb_opfunc_t Change1stSizeFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_change_size,
 	pcb_textop_change_size,
 	pcb_polyop_change_clear,
@@ -82,6 +86,8 @@
 };
 
 pcb_opfunc_t Change2ndSizeFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	pcb_textop_change_2nd_size,
 	NULL,
@@ -95,6 +101,8 @@
 };
 
 pcb_opfunc_t ChangeRotFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	pcb_textop_change_rot,
 	NULL,
@@ -108,6 +116,8 @@
 };
 
 static pcb_opfunc_t ChangeThermalFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	NULL,
 	NULL,
@@ -121,6 +131,8 @@
 };
 
 pcb_opfunc_t ChangeClearSizeFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_change_clear_size,
 	NULL,
 	pcb_polyop_change_clear_size,				/* just to tell the user not to :-) */
@@ -134,6 +146,8 @@
 };
 
 static pcb_opfunc_t ChangeNameFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	pcb_textop_change_name,
 	NULL,
@@ -147,6 +161,8 @@
 };
 
 static pcb_opfunc_t ChangeNonetlistFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	NULL,
 	NULL,
@@ -160,6 +176,8 @@
 };
 
 static pcb_opfunc_t ChangeJoinFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_change_join,
 	pcb_textop_change_join,
 	pcb_polyop_change_join,
@@ -173,6 +191,8 @@
 };
 
 static pcb_opfunc_t SetJoinFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_set_join,
 	pcb_textop_set_join,
 	NULL,
@@ -186,6 +206,8 @@
 };
 
 static pcb_opfunc_t ClrJoinFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_clear_join,
 	pcb_textop_clear_join,
 	NULL,
@@ -199,6 +221,8 @@
 };
 
 static pcb_opfunc_t ChangeRadiusFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	NULL,
 	NULL,
@@ -212,6 +236,8 @@
 };
 
 static pcb_opfunc_t ChangeAngleFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	NULL,
 	NULL,
 	NULL,
@@ -225,6 +251,8 @@
 };
 
 pcb_opfunc_t ChgFlagFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_change_flag,
 	pcb_textop_change_flag,
 	pcb_polyop_change_flag,
@@ -238,6 +266,8 @@
 };
 
 static pcb_opfunc_t InvalLabelFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_invalidate_label,
 	pcb_textop_invalidate_label,
 	pcb_polyop_invalidate_label,
Index: trunk/src/insert.c
===================================================================
--- trunk/src/insert.c	(revision 28794)
+++ trunk/src/insert.c	(revision 28795)
@@ -44,6 +44,8 @@
 #include "obj_poly_op.h"
 
 static pcb_opfunc_t InsertFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_insert_point,
 	NULL,
 	pcb_polyop_insert_point,
Index: trunk/src/move.c
===================================================================
--- trunk/src/move.c	(revision 28794)
+++ trunk/src/move.c	(revision 28795)
@@ -50,6 +50,8 @@
 #include "obj_rat_op.h"
 
 pcb_opfunc_t MoveFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_move,
 	pcb_textop_move,
 	pcb_polyop_move,
@@ -63,6 +65,8 @@
 };
 
 pcb_opfunc_t MoveFunctions_noclip = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_move_noclip,
 	pcb_textop_move_noclip,
 	pcb_polyop_move_noclip,
@@ -76,6 +80,8 @@
 };
 
 pcb_opfunc_t ClipFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_clip,
 	pcb_textop_clip,
 	pcb_polyop_clip,
@@ -89,6 +95,8 @@
 };
 
 static pcb_opfunc_t MoveToLayerFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_move_to_layer,
 	pcb_textop_move_to_layer,
 	pcb_polyop_move_to_layer,
@@ -102,6 +110,8 @@
 };
 
 static pcb_opfunc_t CopyFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_copy,
 	pcb_textop_copy,
 	pcb_polyop_copy,
Index: trunk/src/operation.c
===================================================================
--- trunk/src/operation.c	(revision 28794)
+++ trunk/src/operation.c	(revision 28795)
@@ -46,6 +46,9 @@
 
 	exto = pcb_extobj_edit_pre(Ptr2);
 
+	if (F->common_pre != NULL)
+		F->common_pre(ctx, Ptr2, Ptr3);
+
 	switch (Type) {
 		case PCB_OBJ_LINE:
 			if (F->Line)
@@ -98,6 +101,9 @@
 			break;
 	}
 
+	if (F->common_post != NULL)
+		F->common_post(ctx, Ptr2, Ptr3);
+
 	if (exto != NULL)
 		pcb_extobj_edit_geo(exto);
 
@@ -132,7 +138,9 @@
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, line);
 			}
 			exto = pcb_extobj_edit_pre((pcb_any_obj_t *)line);
+			if (F->common_pre != NULL) F->common_pre(ctx, line, NULL);
 			F->Line(ctx, layer, line);
+			if (F->common_post != NULL) F->common_post(ctx, line, NULL);
 			if (exto != NULL) pcb_extobj_edit_geo(exto);
 			changed = pcb_true;
 		}
@@ -152,7 +160,9 @@
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, arc);
 			}
 			exto = pcb_extobj_edit_pre((pcb_any_obj_t *)arc);
+			if (F->common_pre != NULL) F->common_pre(ctx, arc, NULL);
 			F->Arc(ctx, layer, arc);
+			if (F->common_post != NULL) F->common_post(ctx, arc, NULL);
 			if (exto != NULL) pcb_extobj_edit_geo(exto);
 			changed = pcb_true;
 		}
@@ -172,7 +182,9 @@
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, text);
 			}
 			exto = pcb_extobj_edit_pre((pcb_any_obj_t *)text);
+			if (F->common_pre != NULL) F->common_pre(ctx, text, NULL);
 			F->Text(ctx, layer, text);
+			if (F->common_post != NULL) F->common_post(ctx, text, NULL);
 			if (exto != NULL) pcb_extobj_edit_geo(exto);
 			changed = pcb_true;
 		}
@@ -192,7 +204,9 @@
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, polygon);
 			}
 			exto = pcb_extobj_edit_pre((pcb_any_obj_t *)polygon);
+			if (F->common_pre != NULL) F->common_pre(ctx, polygon, NULL);
 			F->Polygon(ctx, layer, polygon);
+			if (F->common_post != NULL) F->common_post(ctx, polygon, NULL);
 			if (exto != NULL) pcb_extobj_edit_geo(exto);
 			changed = pcb_true;
 		}
@@ -210,7 +224,9 @@
 					PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, subc);
 				}
 				exto = pcb_extobj_edit_pre((pcb_any_obj_t *)subc);
+				if (F->common_pre != NULL) F->common_pre(ctx, subc, NULL);
 				F->subc(ctx, subc);
+				if (F->common_post != NULL) F->common_post(ctx, subc, NULL);
 				if (exto != NULL) pcb_extobj_edit_geo(exto);
 				changed = pcb_true;
 			}
@@ -235,7 +251,9 @@
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, padstack);
 			}
 			exto = pcb_extobj_edit_pre((pcb_any_obj_t *)padstack);
+			if (F->common_pre != NULL) F->common_pre(ctx, padstack, NULL);
 			F->padstack(ctx, padstack);
+			if (F->common_post != NULL) F->common_post(ctx, padstack, NULL);
 			if (exto != NULL) pcb_extobj_edit_geo(exto);
 			changed = pcb_true;
 		}
@@ -254,7 +272,9 @@
 				pcb_undo_add_obj_to_flag(line);
 				PCB_FLAG_CLEAR(PCB_FLAG_SELECTED, line);
 			}
+			if (F->common_pre != NULL) F->common_pre(ctx, line, NULL);
 			F->Rat(ctx, line);
+			if (F->common_post != NULL) F->common_post(ctx, line, NULL);
 			changed = pcb_true;
 		}
 		PCB_END_LOOP;
Index: trunk/src/operation.h
===================================================================
--- trunk/src/operation.h	(revision 28794)
+++ trunk/src/operation.h	(revision 28795)
@@ -135,6 +135,9 @@
 
 /* pointer to low-level operation (copy, move and rotate) functions */
 typedef struct {
+	void *(*common_pre)(pcb_opctx_t *ctx, pcb_any_obj_t *ptr2, void *ptr3);  /* called before anything else (not object-type-dependent) */
+	void *(*common_post)(pcb_opctx_t *ctx, pcb_any_obj_t *ptr2, void *ptr3); /* called after everything else (not object-type-dependent) */
+
 	void *(*Line)(pcb_opctx_t *ctx, pcb_layer_t *, pcb_line_t *);
 	void *(*Text)(pcb_opctx_t *ctx, pcb_layer_t *, pcb_text_t *);
 	void *(*Polygon)(pcb_opctx_t *ctx, pcb_layer_t *, pcb_poly_t *);
Index: trunk/src/remove.c
===================================================================
--- trunk/src/remove.c	(revision 28794)
+++ trunk/src/remove.c	(revision 28795)
@@ -43,6 +43,8 @@
 #include "obj_pstk_op.h"
 
 static pcb_opfunc_t RemoveFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_remove,
 	pcb_textop_remove,
 	pcb_polyop_remove,
@@ -56,6 +58,8 @@
 };
 
 static pcb_opfunc_t DestroyFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_destroy,
 	pcb_textop_destroy,
 	pcb_polyop_destroy,
Index: trunk/src/rotate.c
===================================================================
--- trunk/src/rotate.c	(revision 28794)
+++ trunk/src/rotate.c	(revision 28795)
@@ -52,6 +52,8 @@
 #include "obj_rat_draw.h"
 
 pcb_opfunc_t Rotate90Functions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_rotate90,
 	pcb_textop_rotate90,
 	pcb_polyop_rotate90,
@@ -65,6 +67,8 @@
 };
 
 pcb_opfunc_t RotateFunctions = {
+	NULL, /* common_pre */
+	NULL, /* common_post */
 	pcb_lineop_rotate,
 	pcb_textop_rotate,
 	pcb_polyop_rotate,