[gtk] tooltip: Use gdk_rectangle_contains_point

[Timm Bäder <baedert src gnome org>]

commit a25d6b1dc7bcc7134a9c9238ec48b2c66242547e
Author: Timm Bäder <mail baedert org>
Date:   Fri Jan 18 09:28:03 2019 +0100

    tooltip: Use gdk_rectangle_contains_point

 gtk/gtktooltip.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtktooltip.c b/gtk/gtktooltip.c
index 42f550c24e..07f535ada5 100644
--- a/gtk/gtktooltip.c
+++ b/gtk/gtktooltip.c
@@ -944,7 +944,7 @@ gtk_tooltip_handle_event_internal (GdkEventType   event_type,
        if (current_tooltip)
          {
            gboolean tip_area_set;
-           GdkRectangle tip_area;
+            GdkRectangle tip_area;
            gboolean hide_tooltip;
 
            tip_area_set = current_tooltip->tip_area_set;
@@ -963,10 +963,7 @@ gtk_tooltip_handle_event_internal (GdkEventType   event_type,
 
            /* Did the pointer move out of the previous "context area"? */
            if (tip_area_set)
-             hide_tooltip |= (x <= tip_area.x
-                              || x >= tip_area.x + tip_area.width
-                              || y <= tip_area.y
-                              || y >= tip_area.y + tip_area.height);
+             hide_tooltip |= !gdk_rectangle_contains_point (&tip_area, x, y);
 
            if (hide_tooltip)
              gtk_tooltip_hide_tooltip (current_tooltip);