diff options
| -rw-r--r-- | ui/gtk.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/ui/gtk.c b/ui/gtk.c index 3f67a345d1..2f81863cb5 100644 --- a/ui/gtk.c +++ b/ui/gtk.c @@ -1031,6 +1031,19 @@ static gboolean gd_scroll_event(GtkWidget *widget, GdkEventScroll *scroll, btn = INPUT_BUTTON_WHEEL_UP; } else if (scroll->direction == GDK_SCROLL_DOWN) { btn = INPUT_BUTTON_WHEEL_DOWN; +#if GTK_CHECK_VERSION(3, 4, 0) + } else if (scroll->direction == GDK_SCROLL_SMOOTH) { + gdouble delta_x, delta_y; + if (!gdk_event_get_scroll_deltas((GdkEvent *)scroll, + &delta_x, &delta_y)) { + return TRUE; + } + if (delta_y > 0) { + btn = INPUT_BUTTON_WHEEL_DOWN; + } else { + btn = INPUT_BUTTON_WHEEL_UP; + } +#endif } else { return TRUE; } |