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chrome/browser/gtk/gtk_floating_container.h

 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_GTK_GTK_FLOATING_CONTAINER_H_
 #define CHROME_BROWSER_GTK_GTK_FLOATING_CONTAINER_H_
 #pragma once
 
 #include <gdk/gdk.h>
 #include <gtk/gtk.h>
 
 // A specialized container, which is a cross between a GtkBin and a
 // GtkFixed. This container dervies from GtkBin and the implementation of
 // gtk_container_add() is the same: only one GtkWidget can be added through
 // that interface. The GtkBin portion contains normal content and is given the
 // same allocation that this container has.
 //
 // In addition, any number of widgets can be added through the
 // gtk_floating_container_add_floating() method, which provides functionality
 // similar to a GtkFixed. Unlike a GtkFixed, coordinates are not set when you
 // gtk_fixed_put(). The location of the floating widgets is determined while
 // running the "set-floating-position" signal, which is emitted during this
 // container's "size-allocate" handler.
 //
 // The "set-floating-position" signal is (semi-)mandatory if you want widgets
 // placed anywhere other than the origin and should have the following
 // signature:
 //
 //   void (*set_floating_position)(GtkFloatingContainer* container,
-//                                 GtkAllocation* allocation);
+//                                 GtkAllocation* allocation,
+//                                 gpointer userdata);
 //
 // Your handler should, for each floating widget, set the "x" and "y" child
 // properties.
 
 G_BEGIN_DECLS
 
 #define GTK_TYPE_FLOATING_CONTAINER                                 \
     (gtk_floating_container_get_type())
 #define GTK_FLOATING_CONTAINER(obj)                                 \
     (G_TYPE_CHECK_INSTANCE_CAST((obj), GTK_TYPE_FLOATING_CONTAINER, \
@@ skipping 36 matching lines @@
 GType      gtk_floating_container_get_type() G_GNUC_CONST;
 GtkWidget* gtk_floating_container_new();
 void       gtk_floating_container_add_floating(GtkFloatingContainer* container,
                                                GtkWidget* widget);
 // Use gtk_container_remove to remove all widgets; both widgets added with
 // gtk_container_add() and gtk_floating_container_add_floating().
 
 G_END_DECLS
 
 #endif  // CHROME_BROWSER_GTK_GTK_FLOATING_CONTAINER_H_