Index: obj_arc.c
===================================================================
--- obj_arc.c	(revision 30911)
+++ obj_arc.c	(revision 30912)
@@ -100,13 +100,13 @@
 }
 
 /* computes the bounding box of an arc */
-static pcb_box_t pcb_arc_bbox_(const pcb_arc_t *Arc, int mini)
+static rnd_box_t pcb_arc_bbox_(const pcb_arc_t *Arc, int mini)
 {
 	double ca1, ca2, sa1, sa2;
 	double minx, maxx, miny, maxy, delta;
 	pcb_angle_t ang1, ang2;
 	rnd_coord_t width;
-	pcb_box_t res;
+	rnd_box_t res;
 
 	/* first put angles into standard form:
 	 *  ang1 < ang2, both angles between 0 and 720 */
@@ -189,12 +189,12 @@
 		new_sa = 0;
 	}
 	pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, a);
-	pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) a);
+	pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) a);
 	pcb_undo_add_obj_to_change_angles(PCB_OBJ_ARC, a, a, a);
 	a->StartAngle = new_sa;
 	a->Delta = new_da;
 	pcb_arc_bbox(a);
-	pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) a);
+	pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) a);
 	pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, a);
 }
 
@@ -202,12 +202,12 @@
 void pcb_arc_set_radii(pcb_layer_t *Layer, pcb_arc_t *a, rnd_coord_t new_width, rnd_coord_t new_height)
 {
 	pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, a);
-	pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) a);
+	pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) a);
 	pcb_undo_add_obj_to_change_radii(PCB_OBJ_ARC, a, a, a);
 	a->Width = new_width;
 	a->Height = new_height;
 	pcb_arc_bbox(a);
-	pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) a);
+	pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) a);
 	pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, a);
 }
 
@@ -220,7 +220,7 @@
 	if ((prevent_dups) && (Layer->arc_tree != NULL)) {
 		pcb_rtree_it_t it;
 		pcb_any_obj_t *o;
-		pcb_box_t b;
+		rnd_box_t b;
 
 		b.X1 = X1 - width;
 		b.Y1 = Y1 - height;
@@ -281,7 +281,7 @@
 	pcb_arc_bbox(Arc);
 	if (!Layer->arc_tree)
 		Layer->arc_tree = pcb_r_create_tree();
-	pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+	pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 	Arc->type = PCB_OBJ_ARC;
 	PCB_SET_PARENT(Arc, layer, Layer);
 }
@@ -291,7 +291,7 @@
 void pcb_arc_free(pcb_arc_t *arc)
 {
 	if ((arc->parent.layer != NULL) && (arc->parent.layer->arc_tree != NULL))
-		pcb_r_delete_entry(arc->parent.layer->arc_tree, (pcb_box_t *)arc);
+		pcb_r_delete_entry(arc->parent.layer->arc_tree, (rnd_box_t *)arc);
 	rnd_attribute_free(&arc->Attributes);
 	pcb_arc_unreg(arc);
 	free(arc);
@@ -350,7 +350,7 @@
 		+ (double)arc->Thickness * (double)arc->Thickness * (double)M_PI); /* cap circles */
 }
 
-pcb_box_t pcb_arc_mini_bbox(const pcb_arc_t *arc)
+rnd_box_t pcb_arc_mini_bbox(const pcb_arc_t *arc)
 {
 	return pcb_arc_bbox_(arc, 1);
 }
@@ -361,7 +361,7 @@
 	if (ly == NULL)
 		return;
 	if (ly->arc_tree != NULL)
-		pcb_r_delete_entry(ly->arc_tree, (pcb_box_t *)arc);
+		pcb_r_delete_entry(ly->arc_tree, (rnd_box_t *)arc);
 	pcb_poly_restore_to_poly(ly->parent.data, PCB_OBJ_ARC, ly, arc);
 }
 
@@ -371,7 +371,7 @@
 	if (ly == NULL)
 		return;
 	if (ly->arc_tree != NULL)
-		pcb_r_insert_entry(ly->arc_tree, (pcb_box_t *)arc);
+		pcb_r_insert_entry(ly->arc_tree, (rnd_box_t *)arc);
 	pcb_poly_clear_from_poly(ly->parent.data, PCB_OBJ_ARC, ly, arc);
 }
 
@@ -395,7 +395,7 @@
 	pcb_layer_t *layer = g->arc->parent.layer;
 
 	if (layer->arc_tree != NULL)
-		pcb_r_delete_entry(layer->arc_tree, (pcb_box_t *)g->arc);
+		pcb_r_delete_entry(layer->arc_tree, (rnd_box_t *)g->arc);
 	pcb_poly_restore_to_poly(layer->parent.data, PCB_OBJ_ARC, layer, g->arc);
 
 	rnd_swap(rnd_coord_t, g->Thickness, g->arc->Thickness);
@@ -409,7 +409,7 @@
 
 	pcb_arc_bbox(g->arc);
 	if (layer->arc_tree != NULL)
-		pcb_r_insert_entry(layer->arc_tree, (pcb_box_t *)g->arc);
+		pcb_r_insert_entry(layer->arc_tree, (rnd_box_t *)g->arc);
 	pcb_poly_clear_from_poly(layer->parent.data, PCB_OBJ_ARC, layer, g->arc);
 
 	return 0;
@@ -465,7 +465,7 @@
 	}
 
 	pcb_poly_restore_to_poly(ctx->buffer.src, PCB_OBJ_ARC, srcly, arc);
-	pcb_r_delete_entry(srcly->arc_tree, (pcb_box_t *) arc);
+	pcb_r_delete_entry(srcly->arc_tree, (rnd_box_t *) arc);
 
 	pcb_arc_unreg(arc);
 	pcb_arc_reg(dstly, arc);
@@ -474,7 +474,7 @@
 
 	if (!dstly->arc_tree)
 		dstly->arc_tree = pcb_r_create_tree();
-	pcb_r_insert_entry(dstly->arc_tree, (pcb_box_t *) arc);
+	pcb_r_insert_entry(dstly->arc_tree, (rnd_box_t *) arc);
 	pcb_poly_clear_from_poly(ctx->buffer.dst, PCB_OBJ_ARC, dstly, arc);
 
 	return arc;
@@ -490,11 +490,11 @@
 	if (value <= PCB_MAX_THICKNESS && value >= PCB_MIN_THICKNESS && value != Arc->Thickness) {
 		pcb_undo_add_obj_to_size(PCB_OBJ_ARC, Layer, Arc, Arc);
 		pcb_arc_invalidate_erase(Arc);
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		Arc->Thickness = value;
 		pcb_arc_bbox(Arc);
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		pcb_arc_invalidate_draw(Layer, Arc);
 		return Arc;
@@ -517,11 +517,11 @@
 	if (value != Arc->Clearance) {
 		pcb_undo_add_obj_to_clear_size(PCB_OBJ_ARC, Layer, Arc, Arc);
 		pcb_arc_invalidate_erase(Arc);
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		Arc->Clearance = value;
 		pcb_arc_bbox(Arc);
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		pcb_arc_invalidate_draw(Layer, Arc);
 		return Arc;
@@ -554,11 +554,11 @@
 	if (value != *dst) {
 		pcb_undo_add_obj_to_change_radii(PCB_OBJ_ARC, Layer, Arc, Arc);
 		pcb_arc_invalidate_erase(Arc);
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		*dst = value;
 		pcb_arc_bbox(Arc);
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		pcb_arc_invalidate_draw(Layer, Arc);
 		return Arc;
@@ -593,11 +593,11 @@
 	if (value != *dst) {
 		pcb_undo_add_obj_to_change_angles(PCB_OBJ_ARC, Layer, Arc, Arc);
 		pcb_arc_invalidate_erase(Arc);
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		*dst = value;
 		pcb_arc_bbox(Arc);
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 		pcb_arc_invalidate_draw(Layer, Arc);
 		return Arc;
@@ -676,10 +676,10 @@
 
 void *pcb_arcop_move(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *Arc)
 {
-	pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+	pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 	pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	pcb_arcop_move_noclip(ctx, Layer, Arc);
-	pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+	pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 	pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	return Arc;
 }
@@ -687,11 +687,11 @@
 void *pcb_arcop_clip(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *Arc)
 {
 	if (ctx->clip.restore) {
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	}
 	if (ctx->clip.clear) {
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 		pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	}
 	return Arc;
@@ -700,7 +700,7 @@
 /* moves an arc between layers; lowlevel routines */
 void *pcb_arcop_move_to_layer_low(pcb_opctx_t *ctx, pcb_layer_t * Source, pcb_arc_t * arc, pcb_layer_t * Destination)
 {
-	pcb_r_delete_entry(Source->arc_tree, (pcb_box_t *) arc);
+	pcb_r_delete_entry(Source->arc_tree, (rnd_box_t *) arc);
 
 	pcb_arc_unreg(arc);
 	pcb_arc_reg(Destination, arc);
@@ -707,7 +707,7 @@
 
 	if (!Destination->arc_tree)
 		Destination->arc_tree = pcb_r_create_tree();
-	pcb_r_insert_entry(Destination->arc_tree, (pcb_box_t *) arc);
+	pcb_r_insert_entry(Destination->arc_tree, (rnd_box_t *) arc);
 
 	return arc;
 }
@@ -740,7 +740,7 @@
 /* destroys an arc from a layer */
 void *pcb_arcop_destroy(pcb_opctx_t *ctx, pcb_layer_t *Layer, pcb_arc_t *Arc)
 {
-	pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+	pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 
 	pcb_arc_free(Arc);
 	return NULL;
@@ -797,11 +797,11 @@
 void pcb_arc_rotate(pcb_layer_t *layer, pcb_arc_t *arc, rnd_coord_t X, rnd_coord_t Y, double cosa, double sina, pcb_angle_t angle)
 {
 	if (layer->arc_tree != NULL)
-		pcb_r_delete_entry(layer->arc_tree, (pcb_box_t *) arc);
+		pcb_r_delete_entry(layer->arc_tree, (rnd_box_t *) arc);
 	pcb_rotate(&arc->X, &arc->Y, X, Y, cosa, sina);
 	arc->StartAngle = pcb_normalize_angle(arc->StartAngle + angle);
 	if (layer->arc_tree != NULL)
-		pcb_r_insert_entry(layer->arc_tree, (pcb_box_t *) arc);
+		pcb_r_insert_entry(layer->arc_tree, (rnd_box_t *) arc);
 }
 
 void pcb_arc_mirror(pcb_arc_t *arc, rnd_coord_t y_offs, rnd_bool undoable)
@@ -826,13 +826,13 @@
 
 void pcb_arc_flip_side(pcb_layer_t *layer, pcb_arc_t *arc)
 {
-	pcb_r_delete_entry(layer->arc_tree, (pcb_box_t *) arc);
+	pcb_r_delete_entry(layer->arc_tree, (rnd_box_t *) arc);
 	arc->X = PCB_SWAP_X(arc->X);
 	arc->Y = PCB_SWAP_Y(arc->Y);
 	arc->StartAngle = PCB_SWAP_ANGLE(arc->StartAngle);
 	arc->Delta = PCB_SWAP_DELTA(arc->Delta);
 	pcb_arc_bbox(arc);
-	pcb_r_insert_entry(layer->arc_tree, (pcb_box_t *) arc);
+	pcb_r_insert_entry(layer->arc_tree, (rnd_box_t *) arc);
 }
 
 void pcb_arc_scale(pcb_arc_t *arc, double sx, double sy, double sth)
@@ -866,10 +866,10 @@
 	pcb_arc_invalidate_erase(Arc);
 	pcb_poly_restore_to_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	if (Layer->arc_tree != NULL)
-		pcb_r_delete_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_delete_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 	pcb_arc_rotate90(Arc, ctx->rotate.center_x, ctx->rotate.center_y, ctx->rotate.number);
 	if (Layer->arc_tree != NULL)
-		pcb_r_insert_entry(Layer->arc_tree, (pcb_box_t *) Arc);
+		pcb_r_insert_entry(Layer->arc_tree, (rnd_box_t *) Arc);
 	pcb_poly_clear_from_poly(PCB->Data, PCB_OBJ_ARC, Layer, Arc);
 	pcb_arc_invalidate_draw(Layer, Arc);
 	return Arc;
@@ -1131,7 +1131,7 @@
 	pcb_arc_draw_(info, arc, allow_term_gfx);
 }
 
-pcb_r_dir_t pcb_arc_draw_callback(const pcb_box_t * b, void *cl)
+pcb_r_dir_t pcb_arc_draw_callback(const rnd_box_t * b, void *cl)
 {
 	pcb_arc_t *arc = (pcb_arc_t *)b;
 	pcb_draw_info_t *info = cl;
@@ -1146,7 +1146,7 @@
 	return PCB_R_DIR_FOUND_CONTINUE;
 }
 
-pcb_r_dir_t pcb_arc_draw_term_callback(const pcb_box_t * b, void *cl)
+pcb_r_dir_t pcb_arc_draw_term_callback(const rnd_box_t * b, void *cl)
 {
 	pcb_arc_t *arc = (pcb_arc_t *)b;
 	pcb_draw_info_t *info = cl;