From c806289beec6598b009ab8fab7594593c9050d33 Mon Sep 17 00:00:00 2001
From: Stefan Frederik <stefan.schippers@gmail.com>
Date: Thu, 7 Jan 2021 18:46:39 +0100
Subject: [PATCH] almost eliminated draw_hilight_net(1); draw() takes care of
 it faster

---
 src/actions.c | 18 ++++++++++++------
 src/hilight.c |  5 +++++
 2 files changed, 17 insertions(+), 6 deletions(-)

diff --git a/src/actions.c b/src/actions.c
index 59e883fd..7fb6457c 100644
--- a/src/actions.c
+++ b/src/actions.c
@@ -1611,6 +1611,7 @@ void restore_selection(double x1, double y1, double x2, double y2)
 
 void new_wire(int what, double mx_snap, double my_snap)
 {
+  int big =  xctx->wires> 2000 || xctx->instances > 2000 ;
   if( (what & PLACE) ) {
     if( (xctx->ui_state & STARTWIRE) && (xctx->nl_x1!=xctx->nl_x2 || xctx->nl_y1!=xctx->nl_y2) ) {
       push_undo();
@@ -1659,16 +1660,21 @@ void new_wire(int what, double mx_snap, double my_snap)
       xctx->prep_hi_structs = 0;
       if(autotrim_wires) trim_wires();
       update_conn_cues(1,1);
-      if(show_pin_net_names) {
-        prepare_netlist_structs(0);
+      if( xctx->hilight_nets || show_pin_net_names) prepare_netlist_structs(0);
+      if(!big) {
+        xRect boundbox;
         bbox(START , 0.0 , 0.0 , 0.0 , 0.0);
+        if( xctx->hilight_nets ) calc_drawing_bbox(&boundbox, 2);
+        bbox(ADD, boundbox.x1, boundbox.y1, boundbox.x2, boundbox.y2);
+      }
+      if(show_pin_net_names) {
         int_hash_lookup(xctx->node_redraw_table,  xctx->wire[xctx->wires-1].node, 0, XINSERT_NOREPLACE);
         find_inst_to_be_redrawn();
-        bbox(SET , 0.0 , 0.0 , 0.0 , 0.0);
-        draw();
-        bbox(END , 0.0 , 0.0 , 0.0 , 0.0);
       }
-      draw_hilight_net(1);/* for updating connection bubbles on hilight nets */
+      if(!big) bbox(SET , 0.0 , 0.0 , 0.0 , 0.0);
+      draw();
+      if(!big) bbox(END , 0.0 , 0.0 , 0.0 , 0.0);
+      /* draw_hilight_net(1);*/  /* for updating connection bubbles on hilight nets */
     }
     if(! (what &END)) {
       xctx->nl_x1=mx_snap;
diff --git a/src/hilight.c b/src/hilight.c
index f8b7986c..d77e32b3 100644
--- a/src/hilight.c
+++ b/src/hilight.c
@@ -462,6 +462,10 @@ int bus_search(const char*s)
  return bus;
 }
 
+/* sel: -1 --> unselect
+ *       1 --> select
+ *       0 --> highlight
+ */
 int search(const char *tok, const char *val, int sub, int sel)
 {
  int save_draw;
@@ -478,6 +482,7 @@ int search(const char *tok, const char *val, int sub, int sel)
  regex_t re;
 #endif
 
+ /* when unselecting selected area should be redrawn */
  if(sel == -1 && !big) {
    calc_drawing_bbox(&boundbox, 1);
  }