]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtkfixed.c
stylecontext: Do invalidation on first resize container
[~andy/gtk] / gtk / gtkfixed.c
index 9b88198de1b37cac24d927818dd139d8441eb302..14c35afc84e18048d95cba46ae9b00afb94cf23c 100644 (file)
  * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
  *
  * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
+ * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- * Library General Public License for more details.
+ * Lesser General Public License for more details.
  *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
-#include "gtkfixed.h"
 
+/*
+ * Modified by the GTK+ Team and others 1997-2000.  See the AUTHORS
+ * file for a list of people on the GTK+ Team.  See the ChangeLog
+ * files for a list of changes.  These files are distributed with
+ * GTK+ at ftp://ftp.gtk.org/pub/gtk/.
+ */
 
-static void gtk_fixed_class_init    (GtkFixedClass    *klass);
-static void gtk_fixed_init          (GtkFixed         *fixed);
-static void gtk_fixed_map           (GtkWidget        *widget);
-static void gtk_fixed_unmap         (GtkWidget        *widget);
-static void gtk_fixed_realize       (GtkWidget        *widget);
-static void gtk_fixed_size_request  (GtkWidget        *widget,
-                                    GtkRequisition   *requisition);
-static void gtk_fixed_size_allocate (GtkWidget        *widget,
-                                    GtkAllocation    *allocation);
-static void gtk_fixed_paint         (GtkWidget        *widget,
-                                    GdkRectangle     *area);
-static void gtk_fixed_draw          (GtkWidget        *widget,
-                                    GdkRectangle     *area);
-static gint gtk_fixed_expose        (GtkWidget        *widget,
-                                    GdkEventExpose   *event);
-static void gtk_fixed_add           (GtkContainer     *container,
-                                    GtkWidget        *widget);
-static void gtk_fixed_remove        (GtkContainer     *container,
-                                    GtkWidget        *widget);
-static void gtk_fixed_forall        (GtkContainer     *container,
-                                    gboolean          include_internals,
-                                    GtkCallback       callback,
-                                    gpointer          callback_data);
-static GtkType gtk_fixed_child_type (GtkContainer     *container);
+/**
+ * SECTION:gtkfixed
+ * @Short_description: A container which allows you to position
+ * widgets at fixed coordinates
+ * @Title: GtkFixed
+ *
+ * The #GtkFixed widget is a container which can place child widgets
+ * at fixed positions and with fixed sizes, given in pixels. #GtkFixed
+ * performs no automatic layout management.
+ *
+ * For most applications, you should not use this container! It keeps
+ * you from having to learn about the other GTK+ containers, but it
+ * results in broken applications.  With #GtkFixed, the following
+ * things will result in truncated text, overlapping widgets, and
+ * other display bugs:
+ * <itemizedlist>
+ *  <listitem><para>
+ *   Themes, which may change widget sizes.
+ *  </para></listitem>
+ *  <listitem><para>
+ *   Fonts other than the one you used to write the app will of course
+ *   change the size of widgets containing text; keep in mind that
+ *   users may use a larger font because of difficulty reading the
+ *   default, or they may be using Windows or the framebuffer port of
+ *   GTK+, where different fonts are available.
+ *  </para></listitem>
+ *  <listitem><para>
+ *   Translation of text into other languages changes its size. Also,
+ *   display of non-English text will use a different font in many
+ *   cases.
+ *  </para></listitem>
+ * </itemizedlist>
+ *
+ * In addition, the fixed widget can't properly be mirrored in
+ * right-to-left languages such as Hebrew and Arabic. i.e. normally
+ * GTK+ will flip the interface to put labels to the right of the
+ * thing they label, but it can't do that with #GtkFixed. So your
+ * application will not be usable in right-to-left languages.
+ *
+ * Finally, fixed positioning makes it kind of annoying to add/remove
+ * GUI elements, since you have to reposition all the other
+ * elements. This is a long-term maintenance problem for your
+ * application.
+ *
+ * If you know none of these things are an issue for your application,
+ * and prefer the simplicity of #GtkFixed, by all means use the
+ * widget. But you should be aware of the tradeoffs.
+ */
+
+#include "config.h"
 
+#include "gtkfixed.h"
 
-static GtkContainerClass *parent_class = NULL;
+#include "gtkprivate.h"
+#include "gtkintl.h"
 
 
-GtkType
-gtk_fixed_get_type (void)
+struct _GtkFixedPrivate
 {
-  static GtkType fixed_type = 0;
+  GList *children;
+};
 
-  if (!fixed_type)
-    {
-      GtkTypeInfo fixed_info =
-      {
-       "GtkFixed",
-       sizeof (GtkFixed),
-       sizeof (GtkFixedClass),
-       (GtkClassInitFunc) gtk_fixed_class_init,
-       (GtkObjectInitFunc) gtk_fixed_init,
-       /* reserved_1 */ NULL,
-        /* reserved_2 */ NULL,
-        (GtkClassInitFunc) NULL,
-      };
-
-      fixed_type = gtk_type_unique (GTK_TYPE_CONTAINER, &fixed_info);
-    }
+enum {
+  CHILD_PROP_0,
+  CHILD_PROP_X,
+  CHILD_PROP_Y
+};
 
-  return fixed_type;
-}
+static void gtk_fixed_realize       (GtkWidget        *widget);
+static void gtk_fixed_get_preferred_width  (GtkWidget *widget,
+                                            gint      *minimum,
+                                            gint      *natural);
+static void gtk_fixed_get_preferred_height (GtkWidget *widget,
+                                            gint      *minimum,
+                                            gint      *natural);
+static void gtk_fixed_size_allocate (GtkWidget        *widget,
+                                     GtkAllocation    *allocation);
+static void gtk_fixed_add           (GtkContainer     *container,
+                                     GtkWidget        *widget);
+static void gtk_fixed_remove        (GtkContainer     *container,
+                                     GtkWidget        *widget);
+static void gtk_fixed_forall        (GtkContainer     *container,
+                                     gboolean          include_internals,
+                                     GtkCallback       callback,
+                                     gpointer          callback_data);
+static GType gtk_fixed_child_type   (GtkContainer     *container);
+
+static void gtk_fixed_set_child_property (GtkContainer *container,
+                                          GtkWidget    *child,
+                                          guint         property_id,
+                                          const GValue *value,
+                                          GParamSpec   *pspec);
+static void gtk_fixed_get_child_property (GtkContainer *container,
+                                          GtkWidget    *child,
+                                          guint         property_id,
+                                          GValue       *value,
+                                          GParamSpec   *pspec);
+
+G_DEFINE_TYPE (GtkFixed, gtk_fixed, GTK_TYPE_CONTAINER)
 
 static void
 gtk_fixed_class_init (GtkFixedClass *class)
 {
-  GtkObjectClass *object_class;
   GtkWidgetClass *widget_class;
   GtkContainerClass *container_class;
 
-  object_class = (GtkObjectClass*) class;
   widget_class = (GtkWidgetClass*) class;
   container_class = (GtkContainerClass*) class;
 
-  parent_class = gtk_type_class (GTK_TYPE_CONTAINER);
-
-  widget_class->map = gtk_fixed_map;
-  widget_class->unmap = gtk_fixed_unmap;
   widget_class->realize = gtk_fixed_realize;
-  widget_class->size_request = gtk_fixed_size_request;
+  widget_class->get_preferred_width = gtk_fixed_get_preferred_width;
+  widget_class->get_preferred_height = gtk_fixed_get_preferred_height;
   widget_class->size_allocate = gtk_fixed_size_allocate;
-  widget_class->draw = gtk_fixed_draw;
-  widget_class->expose_event = gtk_fixed_expose;
 
   container_class->add = gtk_fixed_add;
   container_class->remove = gtk_fixed_remove;
   container_class->forall = gtk_fixed_forall;
   container_class->child_type = gtk_fixed_child_type;
+  container_class->set_child_property = gtk_fixed_set_child_property;
+  container_class->get_child_property = gtk_fixed_get_child_property;
+  gtk_container_class_handle_border_width (container_class);
+
+  gtk_container_class_install_child_property (container_class,
+                                              CHILD_PROP_X,
+                                              g_param_spec_int ("x",
+                                                                P_("X position"),
+                                                                P_("X position of child widget"),
+                                                                G_MININT, G_MAXINT, 0,
+                                                                GTK_PARAM_READWRITE));
+
+  gtk_container_class_install_child_property (container_class,
+                                              CHILD_PROP_Y,
+                                              g_param_spec_int ("y",
+                                                                P_("Y position"),
+                                                                P_("Y position of child widget"),
+                                                                G_MININT, G_MAXINT, 0,
+                                                                GTK_PARAM_READWRITE));
+
+  g_type_class_add_private (class, sizeof (GtkFixedPrivate));
 }
 
-static GtkType
-gtk_fixed_child_type (GtkContainer     *container)
+static GType
+gtk_fixed_child_type (GtkContainer *container)
 {
   return GTK_TYPE_WIDGET;
 }
@@ -109,32 +172,66 @@ gtk_fixed_child_type (GtkContainer     *container)
 static void
 gtk_fixed_init (GtkFixed *fixed)
 {
-  GTK_WIDGET_UNSET_FLAGS (fixed, GTK_NO_WINDOW);
-  GTK_WIDGET_SET_FLAGS (fixed, GTK_BASIC);
-  fixed->children = NULL;
+  fixed->priv = G_TYPE_INSTANCE_GET_PRIVATE (fixed, GTK_TYPE_FIXED, GtkFixedPrivate);
+
+  gtk_widget_set_has_window (GTK_WIDGET (fixed), FALSE);
+
+  fixed->priv->children = NULL;
 }
 
+/**
+ * gtk_fixed_new:
+ *
+ * Creates a new #GtkFixed.
+ *
+ * Returns: a new #GtkFixed.
+ */
 GtkWidget*
 gtk_fixed_new (void)
 {
-  GtkFixed *fixed;
+  return g_object_new (GTK_TYPE_FIXED, NULL);
+}
+
+static GtkFixedChild*
+get_child (GtkFixed  *fixed,
+           GtkWidget *widget)
+{
+  GtkFixedPrivate *priv = fixed->priv;
+  GList *children;
+
+  for (children = priv->children; children; children = children->next)
+    {
+      GtkFixedChild *child;
+
+      child = children->data;
+
+      if (child->widget == widget)
+        return child;
+    }
 
-  fixed = gtk_type_new (GTK_TYPE_FIXED);
-  return GTK_WIDGET (fixed);
+  return NULL;
 }
 
+/**
+ * gtk_fixed_put:
+ * @fixed: a #GtkFixed.
+ * @widget: the widget to add.
+ * @x: the horizontal position to place the widget at.
+ * @y: the vertical position to place the widget at.
+ *
+ * Adds a widget to a #GtkFixed container at the given position.
+ */
 void
-gtk_fixed_put (GtkFixed       *fixed,
-               GtkWidget      *widget,
-               gint16         x,
-               gint16         y)
+gtk_fixed_put (GtkFixed  *fixed,
+               GtkWidget *widget,
+               gint       x,
+               gint       y)
 {
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child_info;
 
-  g_return_if_fail (fixed != NULL);
   g_return_if_fail (GTK_IS_FIXED (fixed));
-  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_WIDGET (widget));
 
   child_info = g_new (GtkFixedChild, 1);
   child_info->widget = widget;
@@ -143,345 +240,305 @@ gtk_fixed_put (GtkFixed       *fixed,
 
   gtk_widget_set_parent (widget, GTK_WIDGET (fixed));
 
-  fixed->children = g_list_append (fixed->children, child_info); 
-
-  if (GTK_WIDGET_REALIZED (fixed) && !GTK_WIDGET_REALIZED (widget))
-    gtk_widget_realize (widget);
-
-  if (GTK_WIDGET_MAPPED (fixed) && !GTK_WIDGET_MAPPED (widget))
-    gtk_widget_map (widget);
-
-  if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
-    gtk_widget_queue_resize (GTK_WIDGET (fixed));
+  priv->children = g_list_append (priv->children, child_info);
 }
 
-void
-gtk_fixed_move (GtkFixed       *fixed,
-                GtkWidget      *widget,
-                gint16         x,
-                gint16         y)
+static void
+gtk_fixed_move_internal (GtkFixed      *fixed,
+                         GtkFixedChild *child,
+                         gint           x,
+                         gint           y)
 {
-  GtkFixedChild *child;
-  GList *children;
-
-  g_return_if_fail (fixed != NULL);
   g_return_if_fail (GTK_IS_FIXED (fixed));
-  g_return_if_fail (widget != NULL);
+  g_return_if_fail (gtk_widget_get_parent (child->widget) == GTK_WIDGET (fixed));
 
-  children = fixed->children;
-  while (children)
+  gtk_widget_freeze_child_notify (child->widget);
+
+  if (child->x != x)
     {
-      child = children->data;
-      children = children->next;
+      child->x = x;
+      gtk_widget_child_notify (child->widget, "x");
+    }
 
-      if (child->widget == widget)
-        {
-          child->x = x;
-          child->y = y;
+  if (child->y != y)
+    {
+      child->y = y;
+      gtk_widget_child_notify (child->widget, "y");
+    }
 
-          if (GTK_WIDGET_VISIBLE (widget) && GTK_WIDGET_VISIBLE (fixed))
-            gtk_widget_queue_resize (GTK_WIDGET (fixed));
+  gtk_widget_thaw_child_notify (child->widget);
 
-          break;
-        }
-    }
+  if (gtk_widget_get_visible (child->widget) &&
+      gtk_widget_get_visible (GTK_WIDGET (fixed)))
+    gtk_widget_queue_resize (GTK_WIDGET (fixed));
 }
 
-static void
-gtk_fixed_map (GtkWidget *widget)
+/**
+ * gtk_fixed_move:
+ * @fixed: a #GtkFixed.
+ * @widget: the child widget.
+ * @x: the horizontal position to move the widget to.
+ * @y: the vertical position to move the widget to.
+ *
+ * Moves a child of a #GtkFixed container to the given position.
+ */
+void
+gtk_fixed_move (GtkFixed  *fixed,
+                GtkWidget *widget,
+                gint       x,
+                gint       y)
 {
-  GtkFixed *fixed;
-  GtkFixedChild *child;
-  GList *children;
-
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
+  gtk_fixed_move_internal (fixed, get_child (fixed, widget), x, y);
+}
 
-  GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED);
-  fixed = GTK_FIXED (widget);
+static void
+gtk_fixed_set_child_property (GtkContainer *container,
+                              GtkWidget    *child,
+                              guint         property_id,
+                              const GValue *value,
+                              GParamSpec   *pspec)
+{
+  GtkFixed *fixed = GTK_FIXED (container);
+  GtkFixedChild *fixed_child;
 
-  gdk_window_show (widget->window);
+  fixed_child = get_child (fixed, child);
 
-  children = fixed->children;
-  while (children)
+  switch (property_id)
     {
-      child = children->data;
-      children = children->next;
-
-      if (GTK_WIDGET_VISIBLE (child->widget) &&
-         !GTK_WIDGET_MAPPED (child->widget))
-       gtk_widget_map (child->widget);
+    case CHILD_PROP_X:
+      gtk_fixed_move_internal (fixed,
+                               fixed_child,
+                               g_value_get_int (value),
+                               fixed_child->y);
+      break;
+    case CHILD_PROP_Y:
+      gtk_fixed_move_internal (fixed,
+                               fixed_child,
+                               fixed_child->x,
+                               g_value_get_int (value));
+      break;
+    default:
+      GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+      break;
     }
 }
 
 static void
-gtk_fixed_unmap (GtkWidget *widget)
+gtk_fixed_get_child_property (GtkContainer *container,
+                              GtkWidget    *child,
+                              guint         property_id,
+                              GValue       *value,
+                              GParamSpec   *pspec)
 {
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
+  GtkFixedChild *fixed_child;
 
-  GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED);
+  fixed_child = get_child (GTK_FIXED (container), child);
+  
+  switch (property_id)
+    {
+    case CHILD_PROP_X:
+      g_value_set_int (value, fixed_child->x);
+      break;
+    case CHILD_PROP_Y:
+      g_value_set_int (value, fixed_child->y);
+      break;
+    default:
+      GTK_CONTAINER_WARN_INVALID_CHILD_PROPERTY_ID (container, property_id, pspec);
+      break;
+    }
 }
 
 static void
 gtk_fixed_realize (GtkWidget *widget)
 {
+  GtkAllocation allocation;
+  GdkWindow *window;
   GdkWindowAttr attributes;
   gint attributes_mask;
 
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
+  if (!gtk_widget_get_has_window (widget))
+    GTK_WIDGET_CLASS (gtk_fixed_parent_class)->realize (widget);
+  else
+    {
+      gtk_widget_set_realized (widget, TRUE);
 
-  GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+      gtk_widget_get_allocation (widget, &allocation);
 
-  attributes.window_type = GDK_WINDOW_CHILD;
-  attributes.x = widget->allocation.x;
-  attributes.y = widget->allocation.y;
-  attributes.width = widget->allocation.width;
-  attributes.height = widget->allocation.height;
-  attributes.wclass = GDK_INPUT_OUTPUT;
-  attributes.visual = gtk_widget_get_visual (widget);
-  attributes.colormap = gtk_widget_get_colormap (widget);
-  attributes.event_mask = gtk_widget_get_events (widget);
-  attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
+      attributes.window_type = GDK_WINDOW_CHILD;
+      attributes.x = allocation.x;
+      attributes.y = allocation.y;
+      attributes.width = allocation.width;
+      attributes.height = allocation.height;
+      attributes.wclass = GDK_INPUT_OUTPUT;
+      attributes.visual = gtk_widget_get_visual (widget);
+      attributes.event_mask = gtk_widget_get_events (widget);
+      attributes.event_mask |= GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
 
-  attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+      attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL;
 
-  widget->window = gdk_window_new (gtk_widget_get_parent_window (widget), &attributes, 
-                                  attributes_mask);
-  gdk_window_set_user_data (widget->window, widget);
+      window = gdk_window_new (gtk_widget_get_parent_window (widget),
+                               &attributes, attributes_mask);
+      gtk_widget_set_window (widget, window);
+      gtk_widget_register_window (widget, window);
 
-  widget->style = gtk_style_attach (widget->style, widget->window);
-  gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+      gtk_style_context_set_background (gtk_widget_get_style_context (widget),
+                                        window);
+    }
 }
 
 static void
-gtk_fixed_size_request (GtkWidget      *widget,
-                       GtkRequisition *requisition)
+gtk_fixed_get_preferred_width (GtkWidget *widget,
+                               gint      *minimum,
+                               gint      *natural)
 {
-  GtkFixed *fixed;  
+  GtkFixed *fixed = GTK_FIXED (widget);
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child;
   GList *children;
+  gint child_min, child_nat;
 
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
-  g_return_if_fail (requisition != NULL);
+  *minimum = 0;
+  *natural = 0;
 
-  fixed = GTK_FIXED (widget);
-  requisition->width = 0;
-  requisition->height = 0;
-
-  children = fixed->children;
-  while (children)
+  for (children = priv->children; children; children = children->next)
     {
       child = children->data;
-      children = children->next;
 
-      if (GTK_WIDGET_VISIBLE (child->widget))
-       {
-          gtk_widget_size_request (child->widget, &child->widget->requisition);
-
-          requisition->height = MAX (requisition->height,
-                                     child->y +
-                                     child->widget->requisition.height);
-          requisition->width = MAX (requisition->width,
-                                    child->x +
-                                    child->widget->requisition.width);
-       }
-    }
+      if (!gtk_widget_get_visible (child->widget))
+        continue;
 
-  requisition->height += GTK_CONTAINER (fixed)->border_width * 2;
-  requisition->width += GTK_CONTAINER (fixed)->border_width * 2;
+      gtk_widget_get_preferred_width (child->widget, &child_min, &child_nat);
+
+      *minimum = MAX (*minimum, child->x + child_min);
+      *natural = MAX (*natural, child->x + child_nat);
+    }
 }
 
 static void
-gtk_fixed_size_allocate (GtkWidget     *widget,
-                        GtkAllocation *allocation)
+gtk_fixed_get_preferred_height (GtkWidget *widget,
+                                gint      *minimum,
+                                gint      *natural)
 {
-  GtkFixed *fixed;
+  GtkFixed *fixed = GTK_FIXED (widget);
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child;
-  GtkAllocation child_allocation;
   GList *children;
-  guint16 border_width;
+  gint child_min, child_nat;
 
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED(widget));
-  g_return_if_fail (allocation != NULL);
+  *minimum = 0;
+  *natural = 0;
 
-  fixed = GTK_FIXED (widget);
-
-  widget->allocation = *allocation;
-  if (GTK_WIDGET_REALIZED (widget))
-    gdk_window_move_resize (widget->window,
-                           allocation->x, 
-                           allocation->y,
-                           allocation->width, 
-                           allocation->height);
-
-  border_width = GTK_CONTAINER (fixed)->border_width;
-  
-  children = fixed->children;
-  while (children)
+  for (children = priv->children; children; children = children->next)
     {
       child = children->data;
-      children = children->next;
-      
-      if (GTK_WIDGET_VISIBLE (child->widget))
-       {
-         child_allocation.x = child->x + border_width;
-         child_allocation.y = child->y + border_width;
-         child_allocation.width = child->widget->requisition.width;
-         child_allocation.height = child->widget->requisition.height;
-         gtk_widget_size_allocate (child->widget, &child_allocation);
-       }
-    }
-}
 
-static void
-gtk_fixed_paint (GtkWidget    *widget,
-                GdkRectangle *area)
-{
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
-  g_return_if_fail (area != NULL);
-
-  if (GTK_WIDGET_DRAWABLE (widget))
-      gdk_window_clear_area (widget->window,
-                            area->x, area->y,
-                            area->width, area->height);
+      if (!gtk_widget_get_visible (child->widget))
+        continue;
+
+      gtk_widget_get_preferred_height (child->widget, &child_min, &child_nat);
+
+      *minimum = MAX (*minimum, child->y + child_min);
+      *natural = MAX (*natural, child->y + child_nat);
+    }
 }
 
 static void
-gtk_fixed_draw (GtkWidget    *widget,
-               GdkRectangle *area)
+gtk_fixed_size_allocate (GtkWidget     *widget,
+                         GtkAllocation *allocation)
 {
-  GtkFixed *fixed;
+  GtkFixed *fixed = GTK_FIXED (widget);
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child;
-  GdkRectangle child_area;
+  GtkAllocation child_allocation;
+  GtkRequisition child_requisition;
   GList *children;
 
-  g_return_if_fail (widget != NULL);
-  g_return_if_fail (GTK_IS_FIXED (widget));
+  gtk_widget_set_allocation (widget, allocation);
 
-  if (GTK_WIDGET_DRAWABLE (widget))
+  if (gtk_widget_get_has_window (widget))
     {
-      fixed = GTK_FIXED (widget);
-      gtk_fixed_paint (widget, area);
-
-      children = fixed->children;
-      while (children)
-       {
-         child = children->data;
-         children = children->next;
-
-         if (gtk_widget_intersect (child->widget, area, &child_area))
-           gtk_widget_draw (child->widget, &child_area);
-       }
+      if (gtk_widget_get_realized (widget))
+        gdk_window_move_resize (gtk_widget_get_window (widget),
+                                allocation->x,
+                                allocation->y,
+                                allocation->width,
+                                allocation->height);
     }
-}
-
-static gint
-gtk_fixed_expose (GtkWidget      *widget,
-                 GdkEventExpose *event)
-{
-  GtkFixed *fixed;
-  GtkFixedChild *child;
-  GdkEventExpose child_event;
-  GList *children;
-
-  g_return_val_if_fail (widget != NULL, FALSE);
-  g_return_val_if_fail (GTK_IS_FIXED (widget), FALSE);
-  g_return_val_if_fail (event != NULL, FALSE);
 
-  if (GTK_WIDGET_DRAWABLE (widget))
+  for (children = priv->children; children; children = children->next)
     {
-      fixed = GTK_FIXED (widget);
+      child = children->data;
 
-      child_event = *event;
+      if (!gtk_widget_get_visible (child->widget))
+        continue;
 
-      children = fixed->children;
-      while (children)
-       {
-         child = children->data;
-         children = children->next;
+      gtk_widget_get_preferred_size (child->widget, &child_requisition, NULL);
+      child_allocation.x = child->x;
+      child_allocation.y = child->y;
 
-         if (GTK_WIDGET_NO_WINDOW (child->widget) &&
-             gtk_widget_intersect (child->widget, &event->area, 
-                                   &child_event.area))
-           gtk_widget_event (child->widget, (GdkEvent*) &child_event);
-       }
-    }
+      if (!gtk_widget_get_has_window (widget))
+        {
+          child_allocation.x += allocation->x;
+          child_allocation.y += allocation->y;
+        }
 
-  return FALSE;
+      child_allocation.width = child_requisition.width;
+      child_allocation.height = child_requisition.height;
+      gtk_widget_size_allocate (child->widget, &child_allocation);
+    }
 }
 
 static void
 gtk_fixed_add (GtkContainer *container,
-              GtkWidget    *widget)
+               GtkWidget    *widget)
 {
-  g_return_if_fail (container != NULL);
-  g_return_if_fail (GTK_IS_FIXED (container));
-  g_return_if_fail (widget != NULL);
-
   gtk_fixed_put (GTK_FIXED (container), widget, 0, 0);
 }
 
 static void
 gtk_fixed_remove (GtkContainer *container,
-                 GtkWidget    *widget)
+                  GtkWidget    *widget)
 {
-  GtkFixed *fixed;
+  GtkFixed *fixed = GTK_FIXED (container);
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child;
+  GtkWidget *widget_container = GTK_WIDGET (container);
   GList *children;
 
-  g_return_if_fail (container != NULL);
-  g_return_if_fail (GTK_IS_FIXED (container));
-  g_return_if_fail (widget != NULL);
-
-  fixed = GTK_FIXED (container);
-
-  children = fixed->children;
-  while (children)
+  for (children = priv->children; children; children = children->next)
     {
       child = children->data;
 
       if (child->widget == widget)
-       {
-         gboolean was_visible = GTK_WIDGET_VISIBLE (widget);
-         
-         gtk_widget_unparent (widget);
+        {
+          gboolean was_visible = gtk_widget_get_visible (widget);
 
-         fixed->children = g_list_remove_link (fixed->children, children);
-         g_list_free (children);
-         g_free (child);
+          gtk_widget_unparent (widget);
 
-         if (was_visible && GTK_WIDGET_VISIBLE (container))
-           gtk_widget_queue_resize (GTK_WIDGET (container));
+          priv->children = g_list_remove_link (priv->children, children);
+          g_list_free (children);
+          g_free (child);
 
-         break;
-       }
+          if (was_visible && gtk_widget_get_visible (widget_container))
+            gtk_widget_queue_resize (widget_container);
 
-      children = children->next;
+          break;
+        }
     }
 }
 
 static void
 gtk_fixed_forall (GtkContainer *container,
-                 gboolean      include_internals,
-                 GtkCallback   callback,
-                 gpointer      callback_data)
+                  gboolean      include_internals,
+                  GtkCallback   callback,
+                  gpointer      callback_data)
 {
-  GtkFixed *fixed;
+  GtkFixed *fixed = GTK_FIXED (container);
+  GtkFixedPrivate *priv = fixed->priv;
   GtkFixedChild *child;
   GList *children;
 
-  g_return_if_fail (container != NULL);
-  g_return_if_fail (GTK_IS_FIXED (container));
-  g_return_if_fail (callback != NULL);
-
-  fixed = GTK_FIXED (container);
-
-  children = fixed->children;
+  children = priv->children;
   while (children)
     {
       child = children->data;