add crosshair_layer tcl variable, so user can change crosshair layer.Crosshair is deleted on LeaveNotify events.

src/callback.c

@@ -997,7 +997,7 @@ static int waves_callback(int event, int mx, int my, KeySym key, int button, int
 void draw_crosshair(int del)
 {
   int sdw, sdp;
-  dbg(1, "draw_crosshair()\n");
+  dbg(1, "draw_crosshair(): del=%d\n", del);
   sdw = xctx->draw_window;
   sdp = xctx->draw_pixmap;
 
@@ -1015,18 +1015,18 @@ void draw_crosshair(int del)
          4 * INT_WIDTH(xctx->lw), xctx->xrect[0].height,
          (int)X_TO_SCREEN(xctx->prev_crossx) - 2 * INT_WIDTH(xctx->lw), 0);
   }
-  draw_selection(xctx->gc[SELLAYER], 0);
   drawtempline(xctx->gctiled, NOW, X_TO_XSCHEM(xctx->areax1),
        xctx->prev_crossy, X_TO_XSCHEM(xctx->areax2), xctx->prev_crossy);
   drawtempline(xctx->gctiled, NOW, xctx->prev_crossx, Y_TO_XSCHEM(xctx->areay1),
        xctx->prev_crossx, Y_TO_XSCHEM(xctx->areay2));
 
   if(!del) {
-    drawline(TEXTLAYER, NOW,X_TO_XSCHEM( xctx->areax1), xctx->mousey_snap,
+    drawline(xctx->crosshair_layer, NOW,X_TO_XSCHEM( xctx->areax1), xctx->mousey_snap,
        X_TO_XSCHEM(xctx->areax2), xctx->mousey_snap, 3, NULL);
-    drawline(TEXTLAYER, NOW, xctx->mousex_snap, Y_TO_XSCHEM(xctx->areay1),
+    drawline(xctx->crosshair_layer, NOW, xctx->mousex_snap, Y_TO_XSCHEM(xctx->areay1),
        xctx->mousex_snap, Y_TO_XSCHEM(xctx->areay2), 3, NULL);
   }
+  draw_selection(xctx->gc[SELLAYER], 0);
   xctx->prev_crossx = xctx->mousex_snap;
   xctx->prev_crossy = xctx->mousey_snap;
 
@@ -1142,6 +1142,9 @@ int rstate; /* (reduced state, without ShiftMask) */
  dbg(1, "key=%d EQUAL_MODMASK=%d, SET_MODMASK=%d\n", key, SET_MODMASK, EQUAL_MODMASK);
  switch(event)
  {
+  case LeaveNotify:
+    draw_crosshair(1);
+    break;
   case EnterNotify:
     if(tclgetboolvar("draw_crosshair"))
       tclvareval(xctx->top_path, ".drw configure -cursor none" , NULL);

src/draw.c

@@ -3657,7 +3657,11 @@ void draw(void)
   #endif
 
   dbg(1, "draw()\n");
+
   if(!xctx || xctx->no_draw) return;
+  xctx->crosshair_layer = tclgetintvar("crosshair_layer");
+  if(xctx->crosshair_layer < 0 ) xctx->crosshair_layer = 2;
+  if(xctx->crosshair_layer >= cadlayers ) xctx->crosshair_layer = 2;
   #if HAS_CAIRO==1
   #ifndef __unix__
   clear_cairo_surface(xctx->cairo_save_ctx,

src/xinit.c

@@ -630,6 +630,7 @@ static void alloc_xschem_data(const char *top_path, const char *win_path)
   xctx->gcstipple=my_calloc(_ALLOC_ID_, cadlayers, sizeof(GC));
   xctx->color_array=my_calloc(_ALLOC_ID_, cadlayers, sizeof(char*));
   xctx->enable_layer=my_calloc(_ALLOC_ID_, cadlayers, sizeof(int));
+  xctx->crosshair_layer = TEXTLAYER;
   xctx->n_active_layers = 0;
   xctx->active_layer=my_calloc(_ALLOC_ID_, cadlayers, sizeof(int));
   xctx->hide_symbols = 0;
@@ -2481,6 +2482,7 @@ int Tcl_AppInit(Tcl_Interp *inter)
 
  /* get xschem globals from tcl variables set in xschemrc/xschem.tcl */
  cairo_font_line_spacing = tclgetdoublevar("cairo_font_line_spacing");
+
  if(color_ps==-1)
    color_ps=atoi(tclgetvar("color_ps"));
  else  {
@@ -2489,7 +2491,9 @@ int Tcl_AppInit(Tcl_Interp *inter)
  }
  l_width=atoi(tclgetvar("line_width"));
  if(tclgetboolvar("change_lw")) l_width = 0.0;
+
  cadlayers=atoi(tclgetvar("cadlayers"));
+
  fix_broken_tiled_fill = tclgetboolvar("fix_broken_tiled_fill");
  if(debug_var==-10) debug_var=0;
  my_snprintf(tmp, S(tmp), "%.16g",CADGRID);
@@ -2507,6 +2511,10 @@ int Tcl_AppInit(Tcl_Interp *inter)
  /* initialize current schematic name to empty string to avoid gazillion checks in the code for NULL */
  my_strdup2(_ALLOC_ID_, &xctx->sch[xctx->currsch], "");
 
+ xctx->crosshair_layer = tclgetintvar("crosshair_layer");
+ if(xctx->crosshair_layer < 0 ) xctx->crosshair_layer = 2;
+ if(xctx->crosshair_layer >= cadlayers ) xctx->crosshair_layer = 2;
+
  /* global context / graphic preferences/settings */
  pixdata=my_calloc(_ALLOC_ID_, cadlayers, sizeof(char*));
  for(i=0;i<cadlayers; ++i)

src/xschem.h

@@ -916,6 +916,7 @@ typedef struct {
   int *enable_layer;
   int n_active_layers;
   int *active_layer;
+  int crosshair_layer;
   char *undo_dirname;
   char *infowindow_text; /* ERC messages */
   int cur_undo_ptr;

src/xschem.tcl

@@ -5589,7 +5589,7 @@ set tctx::global_list {
   add_all_windows_drives auto_hilight autofocus_mainwindow
   autotrim_wires bespice_listen_port big_grid_points bus_replacement_char cadgrid cadlayers
   cadsnap cairo_font_name change_lw color_ps colors compare_sch constrained_move
-  copy_cell custom_label_prefix custom_token dark_colors dark_colorscheme
+  copy_cell crosshair_layer custom_label_prefix custom_token dark_colors dark_colorscheme
   delay_flag  dim_bg dim_value
   disable_unique_names do_all_inst draw_crosshair draw_grid draw_window edit_prop_pos edit_prop_size
   edit_symbol_prop_new_sel editprop_sympath en_hilight_conn_inst enable_dim_bg enable_stretch
@@ -5762,7 +5762,7 @@ global env has_x OS autofocus_mainwindow
          }
        }
     "
-    bind $topwin <Leave> "graph_show_measure stop"
+    bind $topwin <Leave> "xschem callback %W %T %x %y 0 0 0 %s; graph_show_measure stop"
     bind $topwin <Expose> "xschem callback %W %T %x %y 0 %w %h %s"
     bind $topwin <Double-Button-1> "xschem callback %W -3 %x %y 0 %b 0 %s"
     bind $topwin <Double-Button-2> "xschem callback %W -3 %x %y 0 %b 0 %s"
@@ -6761,6 +6761,7 @@ set_ne split_files 0
 set_ne flat_netlist 0
 set_ne netlist_show 0
 set_ne color_ps 1
+set_ne crosshair_layer 3 ;# TEXTLAYER
 set_ne ps_paper_size {a4 842 595}
 set_ne transparent_svg 0
 set_ne only_probes 0  ; # 20110112

src/xschemrc

@@ -213,6 +213,9 @@
 #### enable drawing crosshairs at mouse coordinates. Default: disabled (0)
 # set draw_crosshair 1
 
+#### set crosshair layer; Default 3 (TEXTLAYER)
+# set crosshair_layer 3
+
 #### enable to scale grid point size as done with lines at close zoom, default: 0
 # set big_grid_points 0