added scrolling any scrollbars under the mouse pointer with mouse wheel

diff --git a/src/libgame/gadgets.c b/src/libgame/gadgets.c
index 1a0da4b45f55ad6dd469efb796edd063049052b4..75d0a8558970bcb8b2da5ba4f74ec5c4a25e85c2 100644 (file)
--- a/src/libgame/gadgets.c
+++ b/src/libgame/gadgets.c
@@ -96,6 +96,16 @@ static struct GadgetInfo *getGadgetInfoFromMousePosition(int mx, int my,
     boolean check_horizontal = (IS_WHEEL_BUTTON_HORIZONTAL(button) ||
                                GetKeyModState() & KMOD_Shift);
 
+    /* check for the first active scrollbar directly under the mouse pointer */
+    for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
+    {
+      if (gi->mapped && gi->active &&
+         (gi->type & GD_TYPE_SCROLLBAR) &&
+         mx >= gi->x && mx < gi->x + gi->width &&
+         my >= gi->y && my < gi->y + gi->height)
+       return gi;
+    }
+
     /* check for the first active scrollbar with matching mouse wheel area */
     for (gi = gadget_list_first_entry; gi != NULL; gi = gi->next)
     {