[gtk+] API: widget: Add gtk_widget_queue_allocate()

[Benjamin Otte <otte src gnome org>]

commit 195397e87ac7e03173dfe65d1cf52e2751c07706
Author: Benjamin Otte <otte redhat com>
Date:   Mon Sep 14 17:56:05 2015 +0200

    API: widget: Add gtk_widget_queue_allocate()
    
    This is so widgets can queue a rerun of their allocation logic, but
    without triggering resizes everywhere.
    
    For now, it just calls gtk_widget_queue_resize().

 gtk/gtkwidget.c |   28 +++++++++++++++++++++++++---
 gtk/gtkwidget.h |    2 ++
 2 files changed, 27 insertions(+), 3 deletions(-)
---
diff --git a/gtk/gtkwidget.c b/gtk/gtkwidget.c
index cb2a178..75fa743 100644
--- a/gtk/gtkwidget.c
+++ b/gtk/gtkwidget.c
@@ -5577,6 +5577,28 @@ gtk_widget_queue_draw (GtkWidget *widget)
 }
 
 /**
+ * gtk_widget_queue_allocate:
+ * @widget: a #GtkWidget
+ *
+ * This function is only for use in widget implementations.
+ *
+ * Flags the widget for a rerun of the GtkWidgetClass::size_allocate
+ * function. Use this function instead of gtk_widget_queue_resize()
+ * when the @widget's size request didn't change but it wants to
+ * reposition its contents.
+ *
+ * An example user of this function is gtk_widget_set_halign().
+ */
+void
+gtk_widget_queue_allocate (GtkWidget *widget)
+{
+  g_return_if_fail (GTK_IS_WIDGET (widget));
+
+  /* for now... */
+  gtk_widget_queue_resize (widget);
+}
+
+/**
  * gtk_widget_queue_resize:
  * @widget: a #GtkWidget
  *
@@ -10979,7 +11001,7 @@ gtk_widget_error_bell (GtkWidget *widget)
 
   settings = gtk_widget_get_settings (widget);
   if (!settings)
-    return;
+  return;
 
   g_object_get (settings,
                 "gtk-error-bell", &beep,
@@ -14544,7 +14566,7 @@ gtk_widget_set_halign (GtkWidget *widget,
     return;
 
   widget->priv->halign = align;
-  gtk_widget_queue_resize (widget);
+  gtk_widget_queue_allocate (widget);
   g_object_notify_by_pspec (G_OBJECT (widget), widget_props[PROP_HALIGN]);
 }
 
@@ -14610,7 +14632,7 @@ gtk_widget_set_valign (GtkWidget *widget,
     return;
 
   widget->priv->valign = align;
-  gtk_widget_queue_resize (widget);
+  gtk_widget_queue_allocate (widget);
   g_object_notify_by_pspec (G_OBJECT (widget), widget_props[PROP_VALIGN]);
 }
 
diff --git a/gtk/gtkwidget.h b/gtk/gtkwidget.h
index e98c537..61881c2 100644
--- a/gtk/gtkwidget.h
+++ b/gtk/gtkwidget.h
@@ -663,6 +663,8 @@ GDK_AVAILABLE_IN_ALL
 void      gtk_widget_queue_resize        (GtkWidget           *widget);
 GDK_AVAILABLE_IN_ALL
 void      gtk_widget_queue_resize_no_redraw (GtkWidget *widget);
+GDK_AVAILABLE_IN_3_20
+void       gtk_widget_queue_allocate      (GtkWidget           *widget);
 GDK_AVAILABLE_IN_3_8
 GdkFrameClock* gtk_widget_get_frame_clock (GtkWidget           *widget);