Position tool tips correctly on high resolutions (#1020)

Fixes #1003
dkfans · Apr 22, 2021 · 8dc16e3 · 8dc16e3
1 parent 6d330c3
commit 8dc16e3
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/src/gui_tooltips.c b/src/gui_tooltips.c
@@ -72,7 +72,9 @@ void set_gui_tooltip_box_fmt(int bxtype,const char *format, ...)
   va_end(val);
   if (bxtype != 0) {
       tool_tip_box.pos_x = GetMouseX();
-      tool_tip_box.pos_y = GetMouseY()+86;
+      long y_offset_times_two = (43 * units_per_pixel) >> 2;
+      long y_offset = (y_offset_times_two + (y_offset_times_two & 1)) >> 1; // equivalent to (86 * (units_per_pixel/16)) but accounts for rounding, 86 was the previous hard value of y_offset (meant for 640x400)
+      tool_tip_box.pos_y = GetMouseY() + y_offset;
   }
   tool_tip_box.field_809 = bxtype;
 }
@@ -102,7 +104,9 @@ static inline TbBool update_gui_tooltip_button(struct GuiButton *gbtn)
     {
         tool_tip_box.gbutton = gbtn;
         tool_tip_box.pos_x = GetMouseX();
-        tool_tip_box.pos_y = GetMouseY()+86;
+        long y_offset_times_two = (43 * units_per_pixel) >> 2;
+        long y_offset = (y_offset_times_two + (y_offset_times_two & 1)) >> 1; // equivalent to (86 * (units_per_pixel/16)) but accounts for rounding, 86 was the previous hard value of y_offset (meant for 640x400)
+        tool_tip_box.pos_y = GetMouseY() + y_offset;
         tool_tip_box.field_809 = 0;
         return true;
     }