[gtk+/wip/baedert/drawing: 49/73] button: Fix in_button checks

[Timm Bäder <baedert src gnome org>]

commit a27b13398f08487472c29c0b7251785a94238718
Author: Timm Bäder <mail baedert org>
Date:   Sat Jun 17 09:27:03 2017 +0200

    button: Fix in_button checks
    
    The gesture coords are relative to the button's origin, so use
    gtk_widget_get_own_allocation to check if the coords are inside the
    button.

 gtk/gtkbutton.c |    9 ++++-----
 1 files changed, 4 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkbutton.c b/gtk/gtkbutton.c
index 5432c49..0159322 100644
--- a/gtk/gtkbutton.c
+++ b/gtk/gtkbutton.c
@@ -330,12 +330,11 @@ touch_release_in_button (GtkButton *button)
     }
 
   gdk_event_get_coords (event, &x, &y);
-  gtk_widget_get_allocation (GTK_WIDGET (button), &allocation);
+  gtk_widget_get_own_allocation (GTK_WIDGET (button), &allocation);
 
   gdk_event_free (event);
 
-  if (x >= 0 && x <= allocation.width &&
-      y >= 0 && y <= allocation.height)
+  if (gdk_rectangle_contains_point (&allocation, x, y))
     return TRUE;
 
   return FALSE;
@@ -379,10 +378,10 @@ multipress_gesture_update_cb (GtkGesture       *gesture,
   if (sequence != gtk_gesture_single_get_current_sequence (GTK_GESTURE_SINGLE (gesture)))
     return;
 
-  gtk_widget_get_allocation (GTK_WIDGET (button), &allocation);
+  gtk_widget_get_own_allocation (GTK_WIDGET (button), &allocation);
   gtk_gesture_get_point (gesture, sequence, &x, &y);
 
-  in_button = (x >= 0 && y >= 0 && x < allocation.width && y < allocation.height);
+  in_button = gdk_rectangle_contains_point (&allocation, x, y);
 
   if (priv->in_button != in_button)
     {