Imported GtkScrollFrame from EOG and renamed it to EScrollFrame.

2000-05-31  Federico Mena Quintero  <federico@helixcode.com>

	* widgets/misc/e-scroll-frame.[ch]: Imported GtkScrollFrame from
	EOG and renamed it to EScrollFrame.

	* widgets/misc/Makefile.am (libemiscwidgets_a_SOURCES): Added
	e-scroll-frame.[ch].

svn path=/trunk/; revision=3326

3 files changed, 1312 insertions, 0 deletions

diff --git a/widgets/misc/Makefile.am b/widgets/misc/Makefile.am
index c3599c98a6..9596668e1f 100644
--- a/widgets/misc/Makefile.am
+++ b/widgets/misc/Makefile.am
@@ -13,6 +13,8 @@ noinst_LIBRARIES =	\
 libemiscwidgets_a_SOURCES = 	\
 	e-clipped-label.c	\
 	e-clipped-label.h	\
+	e-scroll-frame.c	\
+	e-scroll-frame.h	\
 	e-title-bar.c		\
 	e-title-bar.h
 
diff --git a/widgets/misc/e-scroll-frame.c b/widgets/misc/e-scroll-frame.c
new file mode 100644
index 0000000000..f36e5a1fbe
--- /dev/null
+++ b/widgets/misc/e-scroll-frame.c
@@ -0,0 +1,1215 @@
+/* GTK - The GIMP Toolkit
+ * 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
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-1999.  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/.
+ */
+
+/* EScrollFrame based on GtkScrolledWindow.
+ *
+ * Modifications by Federico Mena <federico@helixcode.com>
+ */
+
+#include <config.h>
+#include <gtk/gtkhscrollbar.h>
+#include <gtk/gtkvscrollbar.h>
+#include <gtk/gtksignal.h>
+#include <gtk/gtkviewport.h>
+#include "e-scroll-frame.h"
+
+
+/* scrolled window policy and size requisition handling:
+ *
+ * gtk size requisition works as follows:
+ *   a widget upon size-request reports the width and height that it finds
+ *   to be best suited to display its contents, including children.
+ *   the width and/or height reported from a widget upon size requisition
+ *   may be overidden by the user by specifying a width and/or height
+ *   other than 0 through gtk_widget_set_usize().
+ *
+ * a scrolled window needs (for imlementing all three policy types) to
+ * request its width and height based on two different rationales.
+ * 1)   the user wants the scrolled window to just fit into the space
+ *      that it gets allocated for a specifc dimension.
+ * 1.1) this does not apply if the user specified a concrete value
+ *      value for that specific dimension by either specifying usize for the
+ *      scrolled window or for its child.
+ * 2)   the user wants the scrolled window to take as much space up as
+ *      is desired by the child for a specifc dimension (i.e. POLICY_NEVER).
+ *
+ * also, kinda obvious:
+ * 3)   a user would certainly not have choosen a scrolled window as a container
+ *      for the child, if the resulting allocation takes up more space than the
+ *      child would have allocated without the scrolled window.
+ *
+ * conclusions:
+ * A) from 1) follows: the scrolled window shouldn't request more space for a
+ *    specifc dimension than is required at minimum.
+ * B) from 1.1) follows: the requisition may be overidden by usize of the scrolled
+ *    window (done automatically) or by usize of the child (needs to be checked).
+ * C) from 2) follows: for POLICY_NEVER, the scrolled window simply reports the
+ *    child's dimension.
+ * D) from 3) follows: the scrolled window child's minimum width and minimum height
+ *    under A) at least correspond to the space taken up by its scrollbars.
+ */
+
+/* Object argument IDs */
+enum {
+	ARG_0,
+	ARG_HADJUSTMENT,
+	ARG_VADJUSTMENT,
+	ARG_HSCROLLBAR_POLICY,
+	ARG_VSCROLLBAR_POLICY,
+	ARG_FRAME_PLACEMENT,
+	ARG_SHADOW_TYPE,
+	ARG_SCROLLBAR_SPACING
+};
+
+/* Private part of the EScrollFrame structure */
+typedef struct {
+	/* Horizontal and vertical scrollbars */
+	GtkWidget *hsb;
+	GtkWidget *vsb;
+
+	/* Space between scrollbars and frame */
+	guint sb_spacing;
+
+	/* Allocation for frame */
+	guint frame_x;
+	guint frame_y;
+	guint frame_w;
+	guint frame_h;
+
+	/* Scrollbar policy */
+	guint hsb_policy : 2;
+	guint vsb_policy : 2;
+
+	/* Whether scrollbars are visible */
+	guint hsb_visible : 1;
+	guint vsb_visible : 1;
+
+	/* Placement of frame wrt scrollbars */
+	guint frame_placement : 2;
+
+	/* Shadow type for frame */
+	guint shadow_type : 3;
+} ScrollFramePrivate;
+
+
+static void e_scroll_frame_class_init (EScrollFrameClass *class);
+static void e_scroll_frame_init (EScrollFrame *sf);
+static void e_scroll_frame_set_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+static void e_scroll_frame_get_arg (GtkObject *object, GtkArg *arg, guint arg_id);
+static void e_scroll_frame_destroy (GtkObject *object);
+static void e_scroll_frame_finalize (GtkObject *object);
+
+static void e_scroll_frame_map (GtkWidget *widget);
+static void e_scroll_frame_unmap (GtkWidget *widget);
+static void e_scroll_frame_draw (GtkWidget *widget, GdkRectangle *area);
+static void e_scroll_frame_size_request (GtkWidget *widget, GtkRequisition *requisition);
+static void e_scroll_frame_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
+static gint e_scroll_frame_expose (GtkWidget *widget, GdkEventExpose *event);
+
+static void e_scroll_frame_add (GtkContainer *container, GtkWidget *widget);
+static void e_scroll_frame_remove (GtkContainer *container, GtkWidget *widget);
+static void e_scroll_frame_forall (GtkContainer *container, gboolean include_internals,
+				     GtkCallback callback, gpointer callback_data);
+
+static GtkBinClass *parent_class;
+
+
+/**
+ * e_scroll_frame_get_type:
+ * @void:
+ *
+ * Registers the #EScrollFrame class if necessary, and returns the type ID
+ * associated to it.
+ *
+ * Return value: The type ID of the #EScrollFrame class.
+ **/
+GtkType
+e_scroll_frame_get_type (void)
+{
+	static GtkType scroll_frame_type = 0;
+
+	if (!scroll_frame_type) {
+		static const GtkTypeInfo scroll_frame_info = {
+			"EScrollFrame",
+			sizeof (EScrollFrame),
+			sizeof (EScrollFrameClass),
+			(GtkClassInitFunc) e_scroll_frame_class_init,
+			(GtkObjectInitFunc) e_scroll_frame_init,
+			NULL, /* reserved_1 */
+			NULL, /* reserved_2 */
+			(GtkClassInitFunc) NULL
+		};
+
+		scroll_frame_type = gtk_type_unique (GTK_TYPE_BIN, &scroll_frame_info);
+	}
+
+	return scroll_frame_type;
+}
+
+/* Class initialization function for the scroll frame widget */
+static void
+e_scroll_frame_class_init (EScrollFrameClass *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_BIN);
+
+	gtk_object_add_arg_type ("EScrollFrame::hadjustment",
+				 GTK_TYPE_ADJUSTMENT,
+				 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
+				 ARG_HADJUSTMENT);
+	gtk_object_add_arg_type ("EScrollFrame::vadjustment",
+				 GTK_TYPE_ADJUSTMENT,
+				 GTK_ARG_READWRITE | GTK_ARG_CONSTRUCT,
+				 ARG_VADJUSTMENT);
+	gtk_object_add_arg_type ("EScrollFrame::hscrollbar_policy",
+				 GTK_TYPE_POLICY_TYPE,
+				 GTK_ARG_READWRITE,
+				 ARG_HSCROLLBAR_POLICY);
+	gtk_object_add_arg_type ("EScrollFrame::vscrollbar_policy",
+				 GTK_TYPE_POLICY_TYPE,
+				 GTK_ARG_READWRITE,
+				 ARG_VSCROLLBAR_POLICY);
+	gtk_object_add_arg_type ("EScrollFrame::frame_placement",
+				 GTK_TYPE_CORNER_TYPE,
+				 GTK_ARG_READWRITE,
+				 ARG_FRAME_PLACEMENT);
+	gtk_object_add_arg_type ("EScrollFrame::shadow_type",
+				 GTK_TYPE_SHADOW_TYPE,
+				 GTK_ARG_READWRITE,
+				 ARG_SHADOW_TYPE);
+	gtk_object_add_arg_type ("EScrollFrame::scrollbar_spacing",
+				 GTK_TYPE_UINT,
+				 GTK_ARG_READWRITE,
+				 ARG_SCROLLBAR_SPACING);
+
+	object_class->set_arg = e_scroll_frame_set_arg;
+	object_class->get_arg = e_scroll_frame_get_arg;
+	object_class->destroy = e_scroll_frame_destroy;
+	object_class->finalize = e_scroll_frame_finalize;
+
+	widget_class->map = e_scroll_frame_map;
+	widget_class->unmap = e_scroll_frame_unmap;
+	widget_class->draw = e_scroll_frame_draw;
+	widget_class->size_request = e_scroll_frame_size_request;
+	widget_class->size_allocate = e_scroll_frame_size_allocate;
+	widget_class->expose_event = e_scroll_frame_expose;
+
+	container_class->add = e_scroll_frame_add;
+	container_class->remove = e_scroll_frame_remove;
+	container_class->forall = e_scroll_frame_forall;
+}
+
+/* Object initialization function for the scroll frame widget */
+static void
+e_scroll_frame_init (EScrollFrame *sf)
+{
+	ScrollFramePrivate *priv;
+
+	priv = g_new0 (ScrollFramePrivate, 1);
+	sf->priv = priv;
+
+	GTK_WIDGET_SET_FLAGS (sf, GTK_NO_WINDOW);
+
+	gtk_container_set_resize_mode (GTK_CONTAINER (sf), GTK_RESIZE_QUEUE);
+
+	priv->sb_spacing = 3;
+	priv->hsb_policy = GTK_POLICY_ALWAYS;
+	priv->vsb_policy = GTK_POLICY_ALWAYS;
+	priv->frame_placement = GTK_CORNER_TOP_LEFT;
+	priv->shadow_type = GTK_SHADOW_NONE;
+}
+
+/* Set_arg handler for the scroll frame widget */
+static void
+e_scroll_frame_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	sf = E_SCROLL_FRAME (object);
+	priv = sf->priv;
+
+	switch (arg_id) {
+	case ARG_HADJUSTMENT:
+		e_scroll_frame_set_hadjustment (sf, GTK_VALUE_POINTER (*arg));
+		break;
+
+	case ARG_VADJUSTMENT:
+		e_scroll_frame_set_vadjustment (sf, GTK_VALUE_POINTER (*arg));
+		break;
+
+	case ARG_HSCROLLBAR_POLICY:
+		e_scroll_frame_set_policy (sf, GTK_VALUE_ENUM (*arg), priv->vsb_policy);
+		break;
+
+	case ARG_VSCROLLBAR_POLICY:
+		e_scroll_frame_set_policy (sf, priv->hsb_policy, GTK_VALUE_ENUM (*arg));
+		break;
+
+	case ARG_FRAME_PLACEMENT:
+		e_scroll_frame_set_placement (sf, GTK_VALUE_ENUM (*arg));
+		break;
+
+	case ARG_SHADOW_TYPE:
+		e_scroll_frame_set_shadow_type (sf, GTK_VALUE_ENUM (*arg));
+		break;
+
+	case ARG_SCROLLBAR_SPACING:
+		e_scroll_frame_set_scrollbar_spacing (sf, GTK_VALUE_UINT (*arg));
+		break;
+
+	default:
+		break;
+	}
+}
+
+/* Get_arg handler for the scroll frame widget */
+static void
+e_scroll_frame_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	sf = E_SCROLL_FRAME (object);
+	priv = sf->priv;
+
+	switch (arg_id) {
+	case ARG_HADJUSTMENT:
+		GTK_VALUE_POINTER (*arg) = e_scroll_frame_get_hadjustment (sf);
+		break;
+
+	case ARG_VADJUSTMENT:
+		GTK_VALUE_POINTER (*arg) = e_scroll_frame_get_vadjustment (sf);
+		break;
+
+	case ARG_HSCROLLBAR_POLICY:
+		GTK_VALUE_ENUM (*arg) = priv->hsb_policy;
+		break;
+
+	case ARG_VSCROLLBAR_POLICY:
+		GTK_VALUE_ENUM (*arg) = priv->vsb_policy;
+		break;
+
+	case ARG_FRAME_PLACEMENT:
+		GTK_VALUE_ENUM (*arg) = priv->frame_placement;
+		break;
+
+	case ARG_SHADOW_TYPE:
+		GTK_VALUE_ENUM (*arg) = priv->shadow_type;
+		break;
+
+	case ARG_SCROLLBAR_SPACING:
+		GTK_VALUE_UINT (*arg) = priv->sb_spacing;
+		break;
+
+	default:
+		arg->type = GTK_TYPE_INVALID;
+		break;
+	}
+}
+
+/* Destroy handler for the scroll frame widget */
+static void
+e_scroll_frame_destroy (GtkObject *object)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (object != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (object));
+
+	sf = E_SCROLL_FRAME (object);
+	priv = sf->priv;
+
+	gtk_widget_unparent (priv->hsb);
+	gtk_widget_unparent (priv->vsb);
+	gtk_widget_destroy (priv->hsb);
+	gtk_widget_destroy (priv->vsb);
+
+	if (GTK_OBJECT_CLASS (parent_class)->destroy)
+		(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
+}
+
+/* Finalize handler for the scroll frame widget */
+static void
+e_scroll_frame_finalize (GtkObject *object)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	sf = E_SCROLL_FRAME (object);
+	priv = sf->priv;
+
+	gtk_widget_unref (priv->hsb);
+	gtk_widget_unref (priv->vsb);
+
+	g_free (priv);
+
+	if (GTK_OBJECT_CLASS (parent_class)->finalize)
+		(* GTK_OBJECT_CLASS (parent_class)->finalize) (object);
+}
+
+/* Map handler for the scroll frame widget */
+static void
+e_scroll_frame_map (GtkWidget *widget)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (widget));
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+
+	/* chain parent class handler to map self and child */
+	if (GTK_WIDGET_CLASS (parent_class)->map)
+		(* GTK_WIDGET_CLASS (parent_class)->map) (widget);
+
+	if (GTK_WIDGET_VISIBLE (priv->hsb) && !GTK_WIDGET_MAPPED (priv->hsb))
+		gtk_widget_map (priv->hsb);
+
+	if (GTK_WIDGET_VISIBLE (priv->vsb) && !GTK_WIDGET_MAPPED (priv->vsb))
+		gtk_widget_map (priv->vsb);
+}
+
+/* Unmap handler for the scroll frame widget */
+static void
+e_scroll_frame_unmap (GtkWidget *widget)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (widget));
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+
+	/* chain parent class handler to unmap self and child */
+	if (GTK_WIDGET_CLASS (parent_class)->unmap)
+		(* GTK_WIDGET_CLASS (parent_class)->unmap) (widget);
+
+	if (GTK_WIDGET_MAPPED (priv->hsb))
+		gtk_widget_unmap (priv->hsb);
+
+	if (GTK_WIDGET_MAPPED (priv->vsb))
+		gtk_widget_unmap (priv->vsb);
+}
+
+/* Draws the shadow of a scroll frame widget */
+static void
+draw_shadow (EScrollFrame *sf, GdkRectangle *area)
+{
+	ScrollFramePrivate *priv;
+
+	g_assert (area != NULL);
+
+	priv = sf->priv;
+
+	gtk_paint_shadow (GTK_WIDGET (sf)->style,
+			  GTK_WIDGET (sf)->window,
+			  GTK_STATE_NORMAL, priv->shadow_type,
+			  area, GTK_WIDGET (sf),
+			  "scroll_frame",
+			  priv->frame_x, priv->frame_y,
+			  priv->frame_w, priv->frame_h);
+}
+
+/* Draw handler for the scroll frame widget */
+static void
+e_scroll_frame_draw (GtkWidget *widget, GdkRectangle *area)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+	GtkBin *bin;
+	GdkRectangle child_area;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (widget));
+	g_return_if_fail (area != NULL);
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+	bin = GTK_BIN (widget);
+
+	if (GTK_WIDGET_DRAWABLE (widget))
+		draw_shadow (sf, area);
+
+	if (bin->child && GTK_WIDGET_VISIBLE (bin->child)
+	    && gtk_widget_intersect (bin->child, area, &child_area))
+		gtk_widget_draw (bin->child, &child_area);
+
+	if (GTK_WIDGET_VISIBLE (priv->hsb)
+	    && gtk_widget_intersect (priv->hsb, area, &child_area))
+		gtk_widget_draw (priv->hsb, &child_area);
+
+	if (GTK_WIDGET_VISIBLE (priv->vsb)
+	    && gtk_widget_intersect (priv->vsb, area, &child_area))
+		gtk_widget_draw (priv->vsb, &child_area);
+}
+
+/* Forall handler for the scroll frame widget */
+static void
+e_scroll_frame_forall (GtkContainer *container, gboolean include_internals,
+			 GtkCallback callback, gpointer callback_data)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (container != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (container));
+	g_return_if_fail (callback != NULL);
+
+	sf = E_SCROLL_FRAME (container);
+	priv = sf->priv;
+
+	if (GTK_CONTAINER_CLASS (parent_class)->forall)
+		(* GTK_CONTAINER_CLASS (parent_class)->forall) (
+			container, include_internals,
+			callback, callback_data);
+
+	if (include_internals) {
+		if (priv->vsb)
+			(* callback) (priv->vsb, callback_data);
+
+		if (priv->hsb)
+			(* callback) (priv->hsb, callback_data);
+	}
+}
+
+/* Size_request handler for the scroll frame widget */
+static void
+e_scroll_frame_size_request (GtkWidget *widget, GtkRequisition *requisition)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+	GtkBin *bin;
+	gint extra_width;
+	gint extra_height;
+	GtkRequisition hsb_requisition;
+	GtkRequisition vsb_requisition;
+	GtkRequisition child_requisition;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (widget));
+	g_return_if_fail (requisition != NULL);
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+	bin = GTK_BIN (widget);
+
+	extra_width = 0;
+	extra_height = 0;
+
+	requisition->width = GTK_CONTAINER (widget)->border_width * 2;
+	requisition->height = GTK_CONTAINER (widget)->border_width * 2;
+
+	if (priv->shadow_type != GTK_SHADOW_NONE) {
+		requisition->width += 2 * widget->style->klass->xthickness;
+		requisition->height += 2 * widget->style->klass->ythickness;
+	}
+
+	gtk_widget_size_request (priv->hsb, &hsb_requisition);
+	gtk_widget_size_request (priv->vsb, &vsb_requisition);
+
+	if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) {
+		static guint quark_aux_info;
+
+		if (!quark_aux_info)
+			quark_aux_info = g_quark_from_static_string ("gtk-aux-info");
+
+		gtk_widget_size_request (bin->child, &child_requisition);
+
+		if (priv->hsb_policy == GTK_POLICY_NEVER)
+			requisition->width += child_requisition.width;
+		else {
+			GtkWidgetAuxInfo *aux_info;
+
+			aux_info = gtk_object_get_data_by_id (GTK_OBJECT (bin->child),
+							      quark_aux_info);
+			if (aux_info && aux_info->width > 0) {
+				requisition->width += aux_info->width;
+				extra_width = -1;
+			} else
+				requisition->width += vsb_requisition.width;
+		}
+
+		if (priv->vsb_policy == GTK_POLICY_NEVER)
+			requisition->height += child_requisition.height;
+		else {
+			GtkWidgetAuxInfo *aux_info;
+
+			aux_info = gtk_object_get_data_by_id (GTK_OBJECT (bin->child),
+							      quark_aux_info);
+			if (aux_info && aux_info->height > 0) {
+				requisition->height += aux_info->height;
+				extra_height = -1;
+			} else
+				requisition->height += hsb_requisition.height;
+		}
+	}
+
+	if (priv->hsb_policy == GTK_POLICY_AUTOMATIC || GTK_WIDGET_VISIBLE (priv->hsb)) {
+		requisition->width = MAX (requisition->width, hsb_requisition.width);
+		if (!extra_height || GTK_WIDGET_VISIBLE (priv->hsb))
+			extra_height = priv->sb_spacing + hsb_requisition.height;
+	}
+
+	if (priv->vsb_policy == GTK_POLICY_AUTOMATIC || GTK_WIDGET_VISIBLE (priv->vsb)) {
+		requisition->height = MAX (requisition->height, vsb_requisition.height);
+		if (!extra_width || GTK_WIDGET_VISIBLE (priv->vsb))
+			extra_width = priv->sb_spacing + vsb_requisition.width;
+	}
+
+	requisition->width += MAX (0, extra_width);
+	requisition->height += MAX (0, extra_height);
+}
+
+/* Computes the relative allocation for the scroll frame widget */
+static void
+compute_relative_allocation (GtkWidget *widget, GtkAllocation *allocation)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_assert (widget != NULL);
+	g_assert (E_IS_SCROLL_FRAME (widget));
+	g_assert (allocation != NULL);
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+
+	allocation->x = GTK_CONTAINER (widget)->border_width;
+	allocation->y = GTK_CONTAINER (widget)->border_width;
+	allocation->width = MAX (1, (gint) widget->allocation.width - allocation->x * 2);
+	allocation->height = MAX (1, (gint) widget->allocation.height - allocation->y * 2);
+
+	if (priv->vsb_visible) {
+		GtkRequisition vsb_requisition;
+
+		gtk_widget_get_child_requisition (priv->vsb, &vsb_requisition);
+
+		if (priv->frame_placement == GTK_CORNER_TOP_RIGHT
+		    || priv->frame_placement == GTK_CORNER_BOTTOM_RIGHT)
+			allocation->x += vsb_requisition.width + priv->sb_spacing;
+
+		allocation->width = MAX (1, ((gint) allocation->width
+					     - ((gint) vsb_requisition.width + priv->sb_spacing)));
+	}
+
+	if (priv->hsb_visible) {
+		GtkRequisition hsb_requisition;
+
+		gtk_widget_get_child_requisition (priv->hsb, &hsb_requisition);
+
+		if (priv->frame_placement == GTK_CORNER_BOTTOM_LEFT
+		    || priv->frame_placement == GTK_CORNER_BOTTOM_RIGHT)
+			allocation->y += hsb_requisition.height + priv->sb_spacing;
+
+		allocation->height = MAX (1, ((gint) allocation->height
+					      - ((gint) hsb_requisition.height + priv->sb_spacing)));
+	}
+}
+
+/* Size_allocate handler for the scroll frame widget */
+static void
+e_scroll_frame_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+	GtkBin *bin;
+	GtkAllocation relative_allocation;
+	GtkAllocation child_allocation;
+	gint xthickness, ythickness;
+
+	g_return_if_fail (widget != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (widget));
+	g_return_if_fail (allocation != NULL);
+
+	sf = E_SCROLL_FRAME (widget);
+	priv = sf->priv;
+	bin = GTK_BIN (widget);
+
+	widget->allocation = *allocation;
+
+	if (priv->hsb_policy == GTK_POLICY_ALWAYS)
+		priv->hsb_visible = TRUE;
+	else if (priv->hsb_policy == GTK_POLICY_NEVER)
+		priv->hsb_visible = FALSE;
+
+	if (priv->vsb_policy == GTK_POLICY_ALWAYS)
+		priv->vsb_visible = TRUE;
+	else if (priv->vsb_policy == GTK_POLICY_NEVER)
+		priv->vsb_visible = FALSE;
+
+	if (priv->shadow_type == GTK_SHADOW_NONE) {
+		xthickness = 0;
+		ythickness = 0;
+	} else {
+		xthickness = widget->style->klass->xthickness;
+		ythickness = widget->style->klass->ythickness;
+	}
+
+	if (bin->child && GTK_WIDGET_VISIBLE (bin->child)) {
+		gboolean previous_hvis;
+		gboolean previous_vvis;
+		guint count = 0;
+
+		do {
+			compute_relative_allocation (widget, &relative_allocation);
+
+			priv->frame_x = relative_allocation.x + allocation->x;
+			priv->frame_y = relative_allocation.y + allocation->y;
+			priv->frame_w = relative_allocation.width;
+			priv->frame_h = relative_allocation.height;
+
+			child_allocation.x = priv->frame_x + xthickness;
+			child_allocation.y = priv->frame_y + ythickness;
+			child_allocation.width = priv->frame_w - 2 * xthickness;
+			child_allocation.height = priv->frame_h - 2 * ythickness;
+
+			previous_hvis = priv->hsb_visible;
+			previous_vvis = priv->vsb_visible;
+
+			gtk_widget_size_allocate (bin->child, &child_allocation);
+
+			/* If, after the first iteration, the hscrollbar and the
+			 * vscrollbar flip visiblity, then we need both.
+			 */
+			if (count
+			    && previous_hvis != priv->hsb_visible
+			    && previous_vvis != priv->vsb_visible) {
+				priv->hsb_visible = TRUE;
+				priv->vsb_visible = TRUE;
+
+				/* a new resize is already queued at this point,
+				 * so we will immediatedly get reinvoked
+				 */
+				return;
+			}
+
+			count++;
+		} while (previous_hvis != priv->hsb_visible
+			 || previous_vvis != priv->vsb_visible);
+	} else
+		compute_relative_allocation (widget, &relative_allocation);
+
+	if (priv->hsb_visible) {
+		GtkRequisition hscrollbar_requisition;
+
+		gtk_widget_get_child_requisition (priv->hsb, &hscrollbar_requisition);
+
+		if (!GTK_WIDGET_VISIBLE (priv->hsb))
+			gtk_widget_show (priv->hsb);
+
+		child_allocation.x = relative_allocation.x;
+		if (priv->frame_placement == GTK_CORNER_TOP_LEFT
+		    || priv->frame_placement == GTK_CORNER_TOP_RIGHT)
+			child_allocation.y = (relative_allocation.y
+					      + relative_allocation.height
+					      + priv->sb_spacing);
+		else
+			child_allocation.y = GTK_CONTAINER (sf)->border_width;
+
+		child_allocation.width = relative_allocation.width;
+		child_allocation.height = hscrollbar_requisition.height;
+		child_allocation.x += allocation->x;
+		child_allocation.y += allocation->y;
+
+		gtk_widget_size_allocate (priv->hsb, &child_allocation);
+	} else if (GTK_WIDGET_VISIBLE (priv->hsb))
+		gtk_widget_hide (priv->hsb);
+
+	if (priv->vsb_visible) {
+		GtkRequisition vscrollbar_requisition;
+
+		if (!GTK_WIDGET_VISIBLE (priv->vsb))
+			gtk_widget_show (priv->vsb);
+
+		gtk_widget_get_child_requisition (priv->vsb, &vscrollbar_requisition);
+
+		if (priv->frame_placement == GTK_CORNER_TOP_LEFT
+		    || priv->frame_placement == GTK_CORNER_BOTTOM_LEFT)
+			child_allocation.x = (relative_allocation.x
+					      + relative_allocation.width
+					      + priv->sb_spacing);
+		else
+			child_allocation.x = GTK_CONTAINER (sf)->border_width;
+
+		child_allocation.y = relative_allocation.y;
+		child_allocation.width = vscrollbar_requisition.width;
+		child_allocation.height = relative_allocation.height;
+		child_allocation.x += allocation->x;
+		child_allocation.y += allocation->y;
+
+		gtk_widget_size_allocate (priv->vsb, &child_allocation);
+	} else if (GTK_WIDGET_VISIBLE (priv->vsb))
+		gtk_widget_hide (priv->vsb);
+}
+
+/* Expose handler for the scroll frame widget */
+static gint
+e_scroll_frame_expose (GtkWidget *widget, GdkEventExpose *event)
+{
+	EScrollFrame *sf;
+
+	g_return_val_if_fail (widget != NULL, FALSE);
+	g_return_val_if_fail (E_IS_SCROLL_FRAME (widget), FALSE);
+	g_return_val_if_fail (event != NULL, FALSE);
+
+	sf = E_SCROLL_FRAME (widget);
+
+	if (GTK_WIDGET_DRAWABLE (widget))
+		draw_shadow (sf, &event->area);
+
+	if (GTK_WIDGET_CLASS (parent_class)->expose_event)
+		(* GTK_WIDGET_CLASS (parent_class)->expose_event) (widget, event);
+
+	return FALSE;
+}
+
+/* Add handler for the scroll frame widget */
+static void
+e_scroll_frame_add (GtkContainer *container, GtkWidget *child)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+	GtkBin *bin;
+
+	sf = E_SCROLL_FRAME (container);
+	priv = sf->priv;
+	bin = GTK_BIN (container);
+	g_return_if_fail (bin->child == NULL);
+
+	bin->child = child;
+	gtk_widget_set_parent (child, GTK_WIDGET (bin));
+
+	/* this is a temporary message */
+	if (!gtk_widget_set_scroll_adjustments (child,
+						gtk_range_get_adjustment (GTK_RANGE (priv->hsb)),
+						gtk_range_get_adjustment (GTK_RANGE (priv->vsb))))
+		g_warning ("e_scroll_frame_add(): cannot add non scrollable widget "
+			   "use e_scroll_frame_add_with_viewport() instead");
+
+	if (GTK_WIDGET_REALIZED (child->parent))
+		gtk_widget_realize (child);
+
+	if (GTK_WIDGET_VISIBLE (child->parent) && GTK_WIDGET_VISIBLE (child)) {
+		if (GTK_WIDGET_MAPPED (child->parent))
+			gtk_widget_map (child);
+
+		gtk_widget_queue_resize (child);
+	}
+}
+
+/* Remove method for the scroll frame widget */
+static void
+e_scroll_frame_remove (GtkContainer *container, GtkWidget *child)
+{
+	g_return_if_fail (container != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (container));
+	g_return_if_fail (child != NULL);
+	g_return_if_fail (GTK_BIN (container)->child == child);
+
+	gtk_widget_set_scroll_adjustments (child, NULL, NULL);
+
+	/* chain parent class handler to remove child */
+	if (GTK_CONTAINER_CLASS (parent_class)->remove)
+		(* GTK_CONTAINER_CLASS (parent_class)->remove) (container, child);
+}
+
+/**
+ * e_scroll_frame_new:
+ * @hadj: If non-NULL, the adjustment to use for horizontal scrolling.
+ * @vadj: If non-NULL, the adjustment to use for vertical scrolling.
+ *
+ * Creates a new scroll frame widget.
+ *
+ * Return value: The newly-created scroll frame widget.
+ **/
+GtkWidget *
+e_scroll_frame_new (GtkAdjustment *hadj, GtkAdjustment *vadj)
+{
+	if (hadj)
+		g_return_val_if_fail (GTK_IS_ADJUSTMENT (hadj), NULL);
+
+	if (vadj)
+		g_return_val_if_fail (GTK_IS_ADJUSTMENT (vadj), NULL);
+
+	return gtk_widget_new (E_TYPE_SCROLL_FRAME,
+			       "hadjustment", hadj,
+			       "vadjustment", vadj,
+			       NULL);
+}
+
+/* Callback used when one of the scroll frame widget's adjustments changes */
+static void
+adjustment_changed (GtkAdjustment *adj, gpointer data)
+{
+	EScrollFrame *sf;
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (adj != NULL);
+	g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
+	g_return_if_fail (data != NULL);
+
+	sf = E_SCROLL_FRAME (data);
+	priv = sf->priv;
+
+	if (adj == gtk_range_get_adjustment (GTK_RANGE (priv->hsb))) {
+		if (priv->hsb_policy == GTK_POLICY_AUTOMATIC) {
+			gboolean visible;
+
+			visible = priv->hsb_visible;
+			priv->hsb_visible = (adj->upper - adj->lower > adj->page_size);
+			if (priv->hsb_visible != visible)
+				gtk_widget_queue_resize (GTK_WIDGET (sf));
+		}
+	} else if (adj == gtk_range_get_adjustment (GTK_RANGE (priv->vsb))) {
+		if (priv->vsb_policy == GTK_POLICY_AUTOMATIC) {
+			gboolean visible;
+
+			visible = priv->vsb_visible;
+			priv->vsb_visible = (adj->upper - adj->lower > adj->page_size);
+			if (priv->vsb_visible != visible)
+				gtk_widget_queue_resize (GTK_WIDGET (sf));
+		}
+	}
+}
+
+/**
+ * e_scroll_frame_set_hadjustment:
+ * @sf: A scroll frame widget.
+ * @adj: An adjustment.
+ *
+ * Sets the adjustment to be used for horizontal scrolling in a scroll frame
+ * widget.
+ **/
+void
+e_scroll_frame_set_hadjustment (EScrollFrame *sf, GtkAdjustment *adj)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+
+	priv = sf->priv;
+
+	if (adj)
+		g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
+	else
+		adj = GTK_ADJUSTMENT (gtk_object_new (GTK_TYPE_ADJUSTMENT, NULL));
+
+	if (!priv->hsb) {
+		gtk_widget_push_composite_child ();
+		priv->hsb = gtk_hscrollbar_new (adj);
+		gtk_widget_set_composite_name (priv->hsb, "hscrollbar");
+		gtk_widget_pop_composite_child ();
+
+		gtk_widget_set_parent (priv->hsb, GTK_WIDGET (sf));
+		gtk_widget_ref (priv->hsb);
+		gtk_widget_show (priv->hsb);
+	} else {
+		GtkAdjustment *old_adj;
+
+		old_adj = gtk_range_get_adjustment (GTK_RANGE (priv->hsb));
+		if (old_adj == adj)
+			return;
+
+		gtk_signal_disconnect_by_func (GTK_OBJECT (old_adj),
+					       GTK_SIGNAL_FUNC (adjustment_changed),
+					       sf);
+		gtk_range_set_adjustment (GTK_RANGE (priv->hsb), adj);
+	}
+
+	adj = gtk_range_get_adjustment (GTK_RANGE (priv->hsb));
+	gtk_signal_connect (GTK_OBJECT (adj),
+			    "changed",
+			    GTK_SIGNAL_FUNC (adjustment_changed),
+			    sf);
+	adjustment_changed (adj, sf);
+
+	if (GTK_BIN (sf)->child)
+		gtk_widget_set_scroll_adjustments (
+			GTK_BIN (sf)->child,
+			gtk_range_get_adjustment (GTK_RANGE (priv->hsb)),
+			gtk_range_get_adjustment (GTK_RANGE (priv->vsb)));
+}
+
+/**
+ * e_scroll_frame_set_vadjustment:
+ * @sf: A scroll frame widget.
+ * @adj: An adjustment.
+ *
+ * Sets the adjustment to be used for vertical scrolling in a scroll frame
+ * widget.
+ **/
+void
+e_scroll_frame_set_vadjustment (EScrollFrame *sf, GtkAdjustment *adj)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+
+	priv = sf->priv;
+
+	if (adj)
+		g_return_if_fail (GTK_IS_ADJUSTMENT (adj));
+	else
+		adj = GTK_ADJUSTMENT (gtk_object_new (GTK_TYPE_ADJUSTMENT, NULL));
+
+	if (!priv->vsb) {
+		gtk_widget_push_composite_child ();
+		priv->vsb = gtk_vscrollbar_new (adj);
+		gtk_widget_set_composite_name (priv->vsb, "vscrollbar");
+		gtk_widget_pop_composite_child ();
+
+		gtk_widget_set_parent (priv->vsb, GTK_WIDGET (sf));
+		gtk_widget_ref (priv->vsb);
+		gtk_widget_show (priv->vsb);
+	} else {
+		GtkAdjustment *old_adj;
+
+		old_adj = gtk_range_get_adjustment (GTK_RANGE (priv->vsb));
+		if (old_adj == adj)
+			return;
+
+		gtk_signal_disconnect_by_func (GTK_OBJECT (old_adj),
+					       GTK_SIGNAL_FUNC (adjustment_changed),
+					       sf);
+		gtk_range_set_adjustment (GTK_RANGE (priv->vsb), adj);
+	}
+
+	adj = gtk_range_get_adjustment (GTK_RANGE (priv->vsb));
+	gtk_signal_connect (GTK_OBJECT (adj),
+			    "changed",
+			    GTK_SIGNAL_FUNC (adjustment_changed),
+			    sf);
+	adjustment_changed (adj, sf);
+
+	if (GTK_BIN (sf)->child)
+		gtk_widget_set_scroll_adjustments (
+			GTK_BIN (sf)->child,
+			gtk_range_get_adjustment (GTK_RANGE (priv->hsb)),
+			gtk_range_get_adjustment (GTK_RANGE (priv->vsb)));
+}
+
+/**
+ * e_scroll_frame_get_hadjustment:
+ * @sf: A scroll frame widget.
+ *
+ * Queries the horizontal adjustment of a scroll frame widget.
+ *
+ * Return value: The horizontal adjustment of the scroll frame, or NULL if none.
+ **/
+GtkAdjustment *
+e_scroll_frame_get_hadjustment (EScrollFrame *sf)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_val_if_fail (sf != NULL, NULL);
+	g_return_val_if_fail (E_IS_SCROLL_FRAME (sf), NULL);
+
+	priv = sf->priv;
+
+	return priv->hsb ? gtk_range_get_adjustment (GTK_RANGE (priv->hsb)) : NULL;
+}
+
+/**
+ * e_scroll_frame_get_vadjustment:
+ * @sf: A scroll frame widget.
+ *
+ * Queries the vertical adjustment of a scroll frame widget.
+ *
+ * Return value: The vertical adjustment of the scroll frame, or NULL if none.
+ **/
+GtkAdjustment *
+e_scroll_frame_get_vadjustment (EScrollFrame *sf)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_val_if_fail (sf != NULL, NULL);
+	g_return_val_if_fail (E_IS_SCROLL_FRAME (sf), NULL);
+
+	priv = sf->priv;
+
+	return priv->vsb ? gtk_range_get_adjustment (GTK_RANGE (priv->vsb)) : NULL;
+}
+
+/**
+ * e_scroll_frame_set_policy:
+ * @sf: A scroll frame widget.
+ * @hsb_policy: Policy for the horizontal scrollbar.
+ * @vsb_policy: Policy for the vertical scrollbar.
+ *
+ * Sets the scrollbar policies of a scroll frame widget.  These determine when
+ * the scrollbars are to be shown or hidden.
+ **/
+void
+e_scroll_frame_set_policy (EScrollFrame *sf,
+			     GtkPolicyType hsb_policy,
+			     GtkPolicyType vsb_policy)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+
+	priv = sf->priv;
+
+	if (priv->hsb_policy == hsb_policy && priv->vsb_policy == vsb_policy)
+		return;
+
+	priv->hsb_policy = hsb_policy;
+	priv->vsb_policy = vsb_policy;
+
+	gtk_widget_queue_resize (GTK_WIDGET (sf));
+}
+
+/**
+ * e_scroll_frame_set_placement:
+ * @sf: A scroll frame widget.
+ * @frame_placement: Placement for the frame.
+ *
+ * Sets the placement of a scroll frame widget's frame with respect to its
+ * scrollbars.
+ **/
+void
+e_scroll_frame_set_placement (EScrollFrame *sf, GtkCornerType frame_placement)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+
+	priv = sf->priv;
+
+	if (priv->frame_placement == frame_placement)
+		return;
+
+	priv->frame_placement = frame_placement;
+	gtk_widget_queue_resize (GTK_WIDGET (sf));
+}
+
+/**
+ * e_scroll_frame_set_shadow_type:
+ * @sf: A scroll frame widget.
+ * @shadow_type: A shadow type.
+ *
+ * Sets the shadow type of a scroll frame widget.  You can use this when you
+ * insert a child that does not paint a frame on its own.
+ **/
+void
+e_scroll_frame_set_shadow_type (EScrollFrame *sf, GtkShadowType shadow_type)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+	g_return_if_fail (shadow_type >= GTK_SHADOW_NONE && shadow_type <= GTK_SHADOW_ETCHED_OUT);
+
+	priv = sf->priv;
+
+	if (priv->shadow_type == shadow_type)
+		return;
+
+	priv->shadow_type = shadow_type;
+	gtk_widget_queue_resize (GTK_WIDGET (sf));
+}
+
+/**
+ * e_scroll_frame_set_scrollbar_spacing:
+ * @sf: A scroll frame widget.
+ * @spacing: Desired spacing in pixels.
+ *
+ * Sets the spacing between the frame and the scrollbars of a scroll frame
+ * widget.
+ **/
+void
+e_scroll_frame_set_scrollbar_spacing (EScrollFrame *sf, guint spacing)
+{
+	ScrollFramePrivate *priv;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+
+	priv = sf->priv;
+
+	if (priv->sb_spacing == spacing)
+		return;
+
+	priv->sb_spacing = spacing;
+	gtk_widget_queue_resize (GTK_WIDGET (sf));
+}
+
+/**
+ * e_scroll_frame_add_with_viewport:
+ * @sf: A scroll frame widget.
+ * @child: A widget.
+ *
+ * Creates a #GtkViewport and puts the specified child inside it, thus allowing
+ * the viewport to be scrolled by the scroll frame widget.  This is meant to be
+ * used only when a child does not support the scrolling interface.
+ **/
+void
+e_scroll_frame_add_with_viewport (EScrollFrame *sf, GtkWidget *child)
+{
+	ScrollFramePrivate *priv;
+	GtkBin *bin;
+	GtkWidget *viewport;
+
+	g_return_if_fail (sf != NULL);
+	g_return_if_fail (E_IS_SCROLL_FRAME (sf));
+	g_return_if_fail (child != NULL);
+	g_return_if_fail (GTK_IS_WIDGET (child));
+	g_return_if_fail (child->parent == NULL);
+
+	priv = sf->priv;
+	bin = GTK_BIN (sf);
+
+	if (bin->child != NULL) {
+		g_return_if_fail (GTK_IS_VIEWPORT (bin->child));
+		g_return_if_fail (GTK_BIN (bin->child)->child == NULL);
+
+		viewport = bin->child;
+	} else {
+		viewport = gtk_viewport_new (e_scroll_frame_get_hadjustment (sf),
+					     e_scroll_frame_get_vadjustment (sf));
+		gtk_container_add (GTK_CONTAINER (sf), viewport);
+	}
+
+	gtk_widget_show (viewport);
+	gtk_container_add (GTK_CONTAINER (viewport), child);
+}
diff --git a/widgets/misc/e-scroll-frame.h b/widgets/misc/e-scroll-frame.h
new file mode 100644
index 0000000000..4bdeee3e1d
--- /dev/null
+++ b/widgets/misc/e-scroll-frame.h
@@ -0,0 +1,95 @@
+/* GTK - The GIMP Toolkit
+ * 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
+ * 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.
+ *
+ * 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.
+ */
+
+/*
+ * Modified by the GTK+ Team and others 1997-1999.  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/.
+ */
+
+/* EScrollFrame based on GtkScrolledWindow.
+ *
+ * Modifications by Federico Mena <federico@helixcode.com>
+ */
+
+#ifndef __E_SCROLL_FRAME_H__
+#define __E_SCROLL_FRAME_H__
+
+
+#include <gdk/gdk.h>
+#include <gtk/gtkbin.h>
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+#define E_TYPE_SCROLL_FRAME            (e_scroll_frame_get_type ())
+#define E_SCROLL_FRAME(obj)            (GTK_CHECK_CAST ((obj), E_TYPE_SCROLL_FRAME, EScrollFrame))
+#define E_SCROLL_FRAME_CLASS(klass)    (GTK_CHECK_CLASS_CAST ((klass), E_TYPE_SCROLL_FRAME,	\
+					EScrollFrameClass))
+#define E_IS_SCROLL_FRAME(obj)         (GTK_CHECK_TYPE ((obj), E_TYPE_SCROLL_FRAME))
+#define E_IS_SCROLL_FRAME_CLASS(klass) (GTK_CHECK_CLASS_TYPE ((klass), E_TYPE_SCROLL_FRAME))
+
+
+typedef struct _EScrollFrame       EScrollFrame;
+typedef struct _EScrollFrameClass  EScrollFrameClass;
+
+struct _EScrollFrame
+{
+	GtkBin bin;
+
+	/* Private data */
+	gpointer priv;
+};
+
+struct _EScrollFrameClass
+{
+	GtkBinClass parent_class;
+};
+
+
+GtkType e_scroll_frame_get_type (void);
+GtkWidget *e_scroll_frame_new (GtkAdjustment *hadj, GtkAdjustment *vadj);
+
+void e_scroll_frame_set_hadjustment (EScrollFrame *sf, GtkAdjustment *adj);
+void e_scroll_frame_set_vadjustment (EScrollFrame *sf, GtkAdjustment *adj);
+
+GtkAdjustment *e_scroll_frame_get_hadjustment (EScrollFrame *sf);
+GtkAdjustment *e_scroll_frame_get_vadjustment (EScrollFrame *sf);
+
+void e_scroll_frame_set_policy (EScrollFrame *sf,
+				GtkPolicyType hsb_policy,
+				GtkPolicyType vsb_policy);
+
+void e_scroll_frame_set_placement (EScrollFrame *sf, GtkCornerType frame_placement);
+void e_scroll_frame_set_shadow_type (EScrollFrame *sf, GtkShadowType shadow_type);
+void e_scroll_frame_set_scrollbar_spacing (EScrollFrame *sf, guint spacing);
+
+void e_scroll_frame_add_with_viewport (EScrollFrame *sf, GtkWidget *child);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+
+#endif /* __E_SCROLL_FRAME_H__ */