[gtk+/wip/baedert/drawing: 180/359] range: Fix click detection in slider trace

[Timm Bäder <baedert src gnome org>]

commit cf405c6cc85d4e7561499587fcdb0708330d5afa
Author: Timm Bäder <mail baedert org>
Date:   Sat May 20 15:04:03 2017 +0200

    range: Fix click detection in slider trace
    
    The x/y/ coordinates are relative to the range allocation, so take that
    into account.

 gtk/gtkrange.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/gtk/gtkrange.c b/gtk/gtkrange.c
index 493fda8..f8afc2c 100644
--- a/gtk/gtkrange.c
+++ b/gtk/gtkrange.c
@@ -1989,6 +1989,7 @@ gtk_range_multipress_gesture_pressed (GtkGestureMultiPress *gesture,
                 "gtk-primary-button-warps-slider", &primary_warps,
                 NULL);
 
+
   if (priv->mouse_location == priv->slider_widget &&
       gdk_event_triggers_context_menu (event))
     {
@@ -2727,7 +2728,7 @@ gtk_range_update_mouse_location (GtkRange *range)
     priv->mouse_location = priv->grab_location;
   else if (rectangle_contains_point (&slider_alloc, range_alloc.x + x, range_alloc.y + y))
     priv->mouse_location = priv->slider_widget;
-  else if (rectangle_contains_point (&slider_trace, x, y))
+  else if (rectangle_contains_point (&slider_trace, range_alloc.x + x, range_alloc.y + y))
     priv->mouse_location = priv->trough_widget;
   else if (rectangle_contains_point (&range_alloc, range_alloc.x + x, range_alloc.y + y))
     priv->mouse_location = widget;