demo: destroy debug window at end #1569

src/demo/demo.c

@@ -589,7 +589,7 @@ int main(int argc, char** argv){
     if(fpsgraph_stop()){
       goto err;
     }
-    about_destroy(nc);
+    about_destroy(nc); // also kills debug window
   }while(restart_demos);
   ncmenu_destroy(menu);
   stop_input();

src/demo/hud.c

@@ -101,8 +101,7 @@ debug_toggle(struct notcurses* nc){
     .y = 3,
     .x = NCALIGN_CENTER,
     .rows = count_debug_lines(output, outputlen) + 1,
-    // 1 plus the max len of debug output so it can print against right border
-    .cols = 81,
+    .cols = 80,
     .flags = NCPLANE_OPTION_HORALIGNED,
   };
   struct ncplane* n = ncplane_create(notcurses_stdplane(nc), &nopts);
@@ -184,10 +183,14 @@ about_toggle(struct notcurses* nc){
   ncplane_destroy(n);
 }
 
+// kills about window *and* debug window
 void about_destroy(struct notcurses* nc){
   if(about){
     about_toggle(nc);
   }
+  if(debug){
+    debug_toggle(nc);
+  }
 }
 
 static void

src/demo/keller.c

@@ -32,7 +32,7 @@ visualize(struct notcurses* nc, struct ncvisual* ncv){
     vopts.x = NCALIGN_CENTER;
     vopts.y = NCALIGN_CENTER;
 //fprintf(stderr, "X: %d truex: %d scalex: %d\n", vopts.x, truex, scalex);
-    ncplane_erase(stdn);
+    ncplane_erase(stdn); // to clear out old text
     struct ncplane* n;
     if((n = ncvisual_render(nc, ncv, &vopts)) == NULL){
       ncplane_printf_aligned(stdn, ncplane_dim_y(stdn) / 2 - 1, NCALIGN_CENTER, "not available");