Index: trunk/src/change.c
===================================================================
--- trunk/src/change.c	(revision 18985)
+++ trunk/src/change.c	(revision 18986)
@@ -84,6 +84,7 @@
 
 pcb_opfunc_t Change2ndSizeFunctions = {
 	NULL,
+	pcb_textop_change_2nd_size,
 	NULL,
 	NULL,
 	NULL,
@@ -90,7 +91,6 @@
 	NULL,
 	NULL,
 	NULL,
-	NULL,
 	pcb_subcop_change_2nd_size,
 	pcb_pstkop_change_2nd_size
 };
Index: trunk/src/obj_text.c
===================================================================
--- trunk/src/obj_text.c	(revision 18985)
+++ trunk/src/obj_text.c	(revision 18986)
@@ -433,6 +433,28 @@
 	return NULL;
 }
 
+/* changes the thickness of a text object */
+void *pcb_textop_change_2nd_size(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text)
+{
+	int value = ctx->chgsize.is_absolute ? ctx->chgsize.value : Text->thickness + ctx->chgsize.value;
+
+	if (PCB_FLAG_TEST(PCB_FLAG_LOCK, Text))
+		return NULL;
+	if (value != Text->thickness) {
+		pcb_undo_add_obj_to_2nd_size(PCB_OBJ_TEXT, Layer, Text, Text);
+		pcb_text_invalidate_erase(Layer, Text);
+		pcb_r_delete_entry(Layer->text_tree, (pcb_box_t *) Text);
+		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_TEXT, Layer, Text);
+		Text->thickness = value;
+		pcb_text_bbox(pcb_font(PCB, Text->fid, 1), Text);
+		pcb_r_insert_entry(Layer->text_tree, (pcb_box_t *) Text);
+		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_TEXT, Layer, Text);
+		pcb_text_invalidate_draw(Layer, Text);
+		return Text;
+	}
+	return NULL;
+}
+
 /* sets data of a text object and calculates bounding box; memory must have
    already been allocated the one for the new string is allocated */
 void *pcb_textop_change_name(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text)
Index: trunk/src/obj_text_op.h
===================================================================
--- trunk/src/obj_text_op.h	(revision 18985)
+++ trunk/src/obj_text_op.h	(revision 18986)
@@ -33,6 +33,7 @@
 void *pcb_textop_add_to_buffer(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
 void *pcb_textop_move_buffer(pcb_opctx_t *ctx, pcb_layer_t * layer, pcb_text_t * text);
 void *pcb_textop_change_size(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
+void *pcb_textop_change_2nd_size(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
 void *pcb_textop_change_name(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
 void *pcb_textop_change_join(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
 void *pcb_textop_set_join(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_text_t *Text);
Index: trunk/src/undo_old.c
===================================================================
--- trunk/src/undo_old.c	(revision 18985)
+++ trunk/src/undo_old.c	(revision 18986)
@@ -1095,9 +1095,27 @@
 	}
 }
 
+
 /* ---------------------------------------------------------------------------
  * adds an object to the list of objects with Size changes
  */
+void pcb_undo_add_obj_to_2nd_size(int Type, void *ptr1, void *ptr2, void *ptr3)
+{
+	UndoListTypePtr undo;
+
+	if (!Locked) {
+		undo = GetUndoSlot(PCB_UNDO_CHANGESIZE, PCB_OBJECT_ID(ptr2), Type);
+		switch (Type) {
+		case PCB_OBJ_TEXT:
+			undo->Data.Size = ((pcb_text_t *) ptr2)->thickness;
+			break;
+		}
+	}
+}
+
+/* ---------------------------------------------------------------------------
+ * adds an object to the list of objects with Size changes
+ */
 void pcb_undo_add_obj_to_clear_size(int Type, void *ptr1, void *ptr2, void *ptr3)
 {
 	UndoListTypePtr undo;
Index: trunk/src/undo_old.h
===================================================================
--- trunk/src/undo_old.h	(revision 18985)
+++ trunk/src/undo_old.h	(revision 18986)
@@ -53,6 +53,7 @@
 void pcb_undo_add_obj_to_move_to_layer(int, void *, void *, void *);
 void pcb_undo_add_obj_to_flag(void *obj);
 void pcb_undo_add_obj_to_size(int, void *, void *, void *);
+void pcb_undo_add_obj_to_2nd_size(int Type, void *ptr1, void *ptr2, void *ptr3);
 void pcb_undo_add_obj_to_clear_size(int, void *, void *, void *);
 void pcb_undo_add_obj_to_change_angles(int, void *, void *, void *);
 void pcb_undo_add_obj_to_change_radii(int, void *, void *, void *);