Index: find_any_isect.c
===================================================================
--- find_any_isect.c	(nonexistent)
+++ find_any_isect.c	(revision 14031)
@@ -0,0 +1,100 @@
+/*
+ *                            COPYRIGHT
+ *
+ *  pcb-rnd, interactive printed circuit board design
+ *  Copyright (C) 2018 Tibor 'Igor2' Palinkas
+ *
+ *  This module, diag, was written and is Copyright (C) 2016 by Tibor Palinkas
+ *  this module is also subject to the GNU GPL as described below
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+
+#warning TODO: implement text intersections
+pcb_bool pcb_intersect_text_line(pcb_text_t *a, pcb_line_t *b) { return pcb_false; }
+pcb_bool pcb_intersect_text_text(pcb_text_t *a, pcb_text_t *b) { return pcb_false; }
+pcb_bool pcb_intersect_text_poly(pcb_text_t *a, pcb_poly_t *b) { return pcb_false; }
+pcb_bool pcb_intersect_text_arc(pcb_text_t *a, pcb_arc_t *b) { return pcb_false; }
+pcb_bool pcb_intersect_text_pstk(pcb_text_t *a, pcb_pstk_t *b) { return pcb_false; }
+
+pcb_bool pcb_intersect_obj_obj(pcb_any_obj_t *a, pcb_any_obj_t *b)
+{
+	switch(a->type) {
+		case PCB_OBJ_VOID: return pcb_false;
+		case PCB_OBJ_LINE:
+			switch(b->type) {
+				case PCB_OBJ_VOID: return pcb_false;
+				case PCB_OBJ_LINE: return pcb_intersect_line_line((pcb_line_t *)a, (pcb_line_t *)b);
+				case PCB_OBJ_TEXT: return pcb_intersect_text_line((pcb_text_t *)b, (pcb_line_t *)a);
+				case PCB_OBJ_POLY: return pcb_is_line_in_poly((pcb_line_t *)a, (pcb_poly_t *)b);
+				case PCB_OBJ_ARC:  return pcb_intersect_line_arc((pcb_line_t *)a, (pcb_arc_t *)b);
+				case PCB_OBJ_PSTK: return pcb_pstk_intersect_line((pcb_pstk_t *)b, (pcb_line_t *)a);
+				default:;
+			}
+			break;
+		case PCB_OBJ_TEXT:
+			switch(b->type) {
+				case PCB_OBJ_VOID: return pcb_false;
+				case PCB_OBJ_LINE: return pcb_intersect_text_line((pcb_text_t *)a, (pcb_line_t *)b);
+				case PCB_OBJ_TEXT: return pcb_intersect_text_text((pcb_text_t *)a, (pcb_text_t *)b);
+				case PCB_OBJ_POLY: return pcb_intersect_text_poly((pcb_text_t *)a, (pcb_poly_t *)b);
+				case PCB_OBJ_ARC:  return pcb_intersect_text_arc((pcb_text_t *)a, (pcb_arc_t *)b);
+				case PCB_OBJ_PSTK: return pcb_intersect_text_pstk((pcb_text_t *)a, (pcb_pstk_t *)b);
+				default:;
+			}
+			break;
+
+		case PCB_OBJ_POLY:
+			switch(b->type) {
+				case PCB_OBJ_VOID: return pcb_false;
+				case PCB_OBJ_LINE: return pcb_is_line_in_poly((pcb_line_t *)b, (pcb_poly_t *)a);
+				case PCB_OBJ_TEXT: return pcb_intersect_text_poly((pcb_text_t *)b, (pcb_poly_t *)a);
+				case PCB_OBJ_POLY: return pcb_is_poly_in_poly((pcb_poly_t *)a, (pcb_poly_t *)b);
+				case PCB_OBJ_ARC:  return pcb_is_arc_in_poly((pcb_arc_t *)b, (pcb_poly_t *)a);
+				case PCB_OBJ_PSTK: return pcb_pstk_intersect_poly((pcb_pstk_t *)b, (pcb_poly_t *)a);
+				default:;
+			}
+			break;
+		case PCB_OBJ_ARC:
+			switch(b->type) {
+				case PCB_OBJ_VOID: return pcb_false;
+				case PCB_OBJ_LINE: return pcb_intersect_line_arc((pcb_line_t *)b, (pcb_arc_t *)a);
+				case PCB_OBJ_TEXT: return pcb_intersect_text_arc((pcb_text_t *)b, (pcb_arc_t *)a);
+				case PCB_OBJ_POLY: return pcb_is_arc_in_poly((pcb_arc_t *)a, (pcb_poly_t *)b);
+				case PCB_OBJ_ARC:  return ArcArcIntersect((pcb_arc_t *)a, (pcb_arc_t *)b);
+				case PCB_OBJ_PSTK: return pcb_pstk_intersect_arc((pcb_pstk_t *)b, (pcb_arc_t *)a);
+				default:;
+			}
+			break;
+		case PCB_OBJ_PSTK:
+			switch(b->type) {
+				case PCB_OBJ_VOID: return pcb_false;
+				case PCB_OBJ_LINE: return pcb_pstk_intersect_line((pcb_pstk_t *)a, (pcb_line_t *)b);
+				case PCB_OBJ_TEXT: return pcb_intersect_text_pstk((pcb_text_t *)b, (pcb_pstk_t *)a);
+				case PCB_OBJ_POLY: return pcb_pstk_intersect_poly((pcb_pstk_t *)a, (pcb_poly_t *)b);
+				case PCB_OBJ_ARC:  return pcb_pstk_intersect_arc((pcb_pstk_t *)a, (pcb_arc_t *)b);
+				case PCB_OBJ_PSTK: return pcb_pstk_intersect_pstk((pcb_pstk_t *)a, (pcb_pstk_t *)b);
+				default:;
+			}
+			break;
+		default:;
+	}
+	assert(!"Don't know how to check intersection of these objet types");
+	return pcb_false;
+}
+
+