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|
/* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 8 -*- */
/**
* gdl-dock-item-grip.c
*
* Based on bonobo-dock-item-grip. Original copyright notice follows.
*
* Author:
* Michael Meeks
*
* Copyright (C) 2002 Sun Microsystems, Inc.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include "gdl-i18n.h"
#include <string.h>
#include <glib-object.h>
#include <gtk/gtk.h>
#include "gdl-dock-item.h"
#include "gdl-dock-item-grip.h"
#include "gdl-stock.h"
#include "gdl-tools.h"
#define ALIGN_BORDER 5
enum {
PROP_0,
PROP_ITEM
};
struct _GdlDockItemGripPrivate {
GtkWidget *close_button;
GtkWidget *iconify_button;
GtkTooltips *tooltips;
gboolean icon_pixbuf_valid;
GdkPixbuf *icon_pixbuf;
gchar *title;
PangoLayout *title_layout;
};
GDL_CLASS_BOILERPLATE (GdlDockItemGrip, gdl_dock_item_grip,
GtkContainer, GTK_TYPE_CONTAINER);
/* must be called after size_allocate */
static void
gdl_dock_item_grip_get_title_area (GdlDockItemGrip *grip,
GdkRectangle *area)
{
GtkWidget *widget = GTK_WIDGET (grip);
gint border = GTK_CONTAINER (grip)->border_width;
gint alloc_height;
area->width = (widget->allocation.width - 2 * border - ALIGN_BORDER);
pango_layout_get_pixel_size (grip->_priv->title_layout, NULL, &alloc_height);
alloc_height = MAX (grip->_priv->close_button->allocation.height, alloc_height);
alloc_height = MAX (grip->_priv->iconify_button->allocation.height, alloc_height);
if (GTK_WIDGET_VISIBLE (grip->_priv->close_button)) {
area->width -= grip->_priv->close_button->allocation.width;
}
if (GTK_WIDGET_VISIBLE (grip->_priv->iconify_button)) {
area->width -= grip->_priv->iconify_button->allocation.width;
}
area->x = widget->allocation.x + border + ALIGN_BORDER;
area->y = widget->allocation.y + border;
area->height = alloc_height;
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
area->x += (widget->allocation.width - 2 * border) - area->width;
}
static void
ensure_title_and_icon_pixbuf (GdlDockItemGrip *grip)
{
gchar *stock_id;
GdkPixbuf *pixbuf;
g_return_if_fail (GDL_IS_DOCK_ITEM_GRIP (grip));
/* get long name property from the dock object */
if (!grip->_priv->title) {
g_object_get (G_OBJECT (grip->item), "long-name", &grip->_priv->title, NULL);
if (!grip->_priv->title)
grip->_priv->title = g_strdup ("");
}
/* retrieve stock pixbuf, if any */
if (!grip->_priv->icon_pixbuf_valid) {
g_object_get (G_OBJECT (grip->item), "stock-id", &stock_id, NULL);
if (stock_id) {
grip->_priv->icon_pixbuf = gtk_widget_render_icon (GTK_WIDGET (grip),
stock_id,
GTK_ICON_SIZE_MENU, "");
g_free (stock_id);
grip->_priv->icon_pixbuf_valid = TRUE;
}
}
/* retrieve pixbuf icon, if any */
if (!grip->_priv->icon_pixbuf_valid) {
g_object_get (G_OBJECT (grip->item), "pixbuf-icon", &pixbuf, NULL);
if (pixbuf) {
grip->_priv->icon_pixbuf = pixbuf;
grip->_priv->icon_pixbuf_valid = TRUE;
}
}
/* create layout: the actual text is reset at size_allocate */
if (!grip->_priv->title_layout) {
grip->_priv->title_layout = gtk_widget_create_pango_layout (GTK_WIDGET (grip),
grip->_priv->title);
pango_layout_set_single_paragraph_mode (grip->_priv->title_layout, TRUE);
}
}
static gint
gdl_dock_item_grip_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GdlDockItemGrip *grip;
GdkRectangle title_area;
GdkRectangle expose_area;
GtkStyle *bg_style;
gint layout_width;
gint layout_height;
gint text_x;
gint text_y;
gboolean item_or_child_has_focus;
grip = GDL_DOCK_ITEM_GRIP (widget);
gdl_dock_item_grip_get_title_area (grip, &title_area);
/* draw background, highlight it if the dock item or any of its
* descendants have focus */
bg_style = (gdl_dock_item_or_child_has_focus (grip->item) ?
gtk_widget_get_style (widget)->dark_gc[widget->state] :
gtk_widget_get_style (widget)->mid_gc[widget->state]);
gdk_draw_rectangle (GDK_DRAWABLE (widget->window), bg_style, TRUE,
1, 0, widget->allocation.width - 1, widget->allocation.height);
if (grip->_priv->icon_pixbuf) {
GdkRectangle pixbuf_rect;
pixbuf_rect.width = gdk_pixbuf_get_width (grip->_priv->icon_pixbuf);
pixbuf_rect.height = gdk_pixbuf_get_height (grip->_priv->icon_pixbuf);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL) {
pixbuf_rect.x = title_area.x + title_area.width - pixbuf_rect.width;
} else {
pixbuf_rect.x = title_area.x;
title_area.x += pixbuf_rect.width + 1;
}
/* shrink title area by the pixbuf width plus a 1px spacing */
title_area.width -= pixbuf_rect.width + 1;
pixbuf_rect.y = title_area.y + (title_area.height - pixbuf_rect.height) / 2;
if (gdk_rectangle_intersect (&event->area, &pixbuf_rect, &expose_area)) {
GdkGC *gc;
GtkStyle *style;
style = gtk_widget_get_style (widget);
gc = style->bg_gc[widget->state];
gdk_draw_pixbuf (GDK_DRAWABLE (widget->window), gc,
grip->_priv->icon_pixbuf,
0, 0, pixbuf_rect.x, pixbuf_rect.y,
pixbuf_rect.width, pixbuf_rect.height,
GDK_RGB_DITHER_NONE, 0, 0);
}
}
if (gdk_rectangle_intersect (&title_area, &event->area, &expose_area)) {
pango_layout_get_pixel_size (grip->_priv->title_layout, &layout_width,
&layout_height);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
text_x = title_area.x + title_area.width - layout_width;
else
text_x = title_area.x;
text_y = title_area.y + (title_area.height - layout_height) / 2;
gtk_paint_layout (widget->style, widget->window, widget->state, TRUE,
&expose_area, widget, NULL, text_x, text_y,
grip->_priv->title_layout);
}
return GTK_WIDGET_CLASS (parent_class)->expose_event (widget, event);
}
static void
gdl_dock_item_grip_item_notify (GObject *master,
GParamSpec *pspec,
gpointer data)
{
GdlDockItemGrip *grip;
gboolean cursor;
grip = GDL_DOCK_ITEM_GRIP (data);
if (strcmp (pspec->name, "stock-id") == 0) {
if (grip->_priv->icon_pixbuf) {
g_object_unref (grip->_priv->icon_pixbuf);
grip->_priv->icon_pixbuf = NULL;
}
grip->_priv->icon_pixbuf_valid = FALSE;
ensure_title_and_icon_pixbuf (grip);
} else if (strcmp (pspec->name, "long-name") == 0) {
g_free (grip->_priv->title);
g_object_unref (grip->_priv->title_layout);
grip->_priv->title_layout = NULL;
grip->_priv->title = NULL;
ensure_title_and_icon_pixbuf (grip);
gtk_widget_queue_draw (GTK_WIDGET (grip));
} else if (strcmp (pspec->name, "behavior") == 0) {
cursor = FALSE;
if (grip->_priv->close_button) {
if (GDL_DOCK_ITEM_CANT_CLOSE (grip->item)) {
gtk_widget_hide (GTK_WIDGET (grip->_priv->close_button));
} else {
gtk_widget_show (GTK_WIDGET (grip->_priv->close_button));
cursor = TRUE;
}
}
if (grip->_priv->iconify_button) {
if (GDL_DOCK_ITEM_CANT_ICONIFY (grip->item)) {
gtk_widget_hide (GTK_WIDGET (grip->_priv->iconify_button));
} else {
gtk_widget_show (GTK_WIDGET (grip->_priv->iconify_button));
cursor = TRUE;
}
}
if (grip->title_window && !cursor)
gdk_window_set_cursor (grip->title_window, NULL);
}
}
static void
gdl_dock_item_grip_destroy (GtkObject *object)
{
GdlDockItemGrip *grip = GDL_DOCK_ITEM_GRIP (object);
if (grip->_priv) {
GdlDockItemGripPrivate *priv = grip->_priv;
if (priv->title_layout) {
g_object_unref (priv->title_layout);
priv->title_layout = NULL;
}
g_free (priv->title);
priv->title = NULL;
if (priv->icon_pixbuf) {
g_object_unref (priv->icon_pixbuf);
priv->icon_pixbuf = NULL;
}
if (priv->tooltips) {
g_object_unref (priv->tooltips);
priv->tooltips = NULL;
}
if (grip->item)
g_signal_handlers_disconnect_by_func (grip->item,
gdl_dock_item_grip_item_notify,
grip);
grip->item = NULL;
grip->_priv = NULL;
g_free (priv);
}
GDL_CALL_PARENT (GTK_OBJECT_CLASS, destroy, (object));
}
static void
gdl_dock_item_grip_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GdlDockItemGrip *grip;
g_return_if_fail (GDL_IS_DOCK_ITEM_GRIP (object));
grip = GDL_DOCK_ITEM_GRIP (object);
switch (prop_id) {
case PROP_ITEM:
grip->item = g_value_get_object (value);
if (grip->item) {
g_signal_connect (grip->item, "notify::long_name",
G_CALLBACK (gdl_dock_item_grip_item_notify),
grip);
g_signal_connect (grip->item, "notify::stock_id",
G_CALLBACK (gdl_dock_item_grip_item_notify),
grip);
g_signal_connect (grip->item, "notify::behavior",
G_CALLBACK (gdl_dock_item_grip_item_notify),
grip);
if (!GDL_DOCK_ITEM_CANT_CLOSE (grip->item) && grip->_priv->close_button)
gtk_widget_show (grip->_priv->close_button);
if (!GDL_DOCK_ITEM_CANT_ICONIFY (grip->item) && grip->_priv->iconify_button)
gtk_widget_show (grip->_priv->iconify_button);
}
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gdl_dock_item_grip_close_clicked (GtkWidget *widget,
GdlDockItemGrip *grip)
{
g_return_if_fail (grip->item != NULL);
gdl_dock_item_hide_item (grip->item);
}
static void
gdl_dock_item_grip_iconify_clicked (GtkWidget *widget,
GdlDockItemGrip *grip)
{
g_return_if_fail (grip->item != NULL);
gdl_dock_item_iconify_item (grip->item);
/* Workaround to unhighlight the iconify button. */
GTK_BUTTON (grip->_priv->iconify_button)->in_button = FALSE;
gtk_button_leave (GTK_BUTTON (grip->_priv->iconify_button));
}
static void
gdl_dock_item_grip_instance_init (GdlDockItemGrip *grip)
{
GtkWidget *image;
GTK_WIDGET_SET_FLAGS (grip, GTK_NO_WINDOW);
grip->_priv = g_new0 (GdlDockItemGripPrivate, 1);
grip->_priv->icon_pixbuf_valid = FALSE;
grip->_priv->icon_pixbuf = NULL;
grip->_priv->title_layout = NULL;
gtk_widget_push_composite_child ();
grip->_priv->close_button = gtk_button_new ();
gtk_widget_pop_composite_child ();
GTK_WIDGET_UNSET_FLAGS (grip->_priv->close_button, GTK_CAN_FOCUS);
gtk_widget_set_parent (grip->_priv->close_button, GTK_WIDGET (grip));
gtk_button_set_relief (GTK_BUTTON (grip->_priv->close_button), GTK_RELIEF_NONE);
gtk_widget_show (grip->_priv->close_button);
image = gtk_image_new_from_stock (GDL_STOCK_CLOSE, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (grip->_priv->close_button), image);
gtk_widget_show (image);
g_signal_connect (G_OBJECT (grip->_priv->close_button), "clicked",
G_CALLBACK (gdl_dock_item_grip_close_clicked), grip);
gtk_widget_push_composite_child ();
grip->_priv->iconify_button = gtk_button_new ();
gtk_widget_pop_composite_child ();
GTK_WIDGET_UNSET_FLAGS (grip->_priv->iconify_button, GTK_CAN_FOCUS);
gtk_widget_set_parent (grip->_priv->iconify_button, GTK_WIDGET (grip));
gtk_button_set_relief (GTK_BUTTON (grip->_priv->iconify_button), GTK_RELIEF_NONE);
gtk_widget_show (grip->_priv->iconify_button);
image = gtk_image_new_from_stock (GDL_STOCK_MENU_RIGHT, GTK_ICON_SIZE_MENU);
gtk_container_add (GTK_CONTAINER (grip->_priv->iconify_button), image);
gtk_widget_show (image);
g_signal_connect (G_OBJECT (grip->_priv->iconify_button), "clicked",
G_CALLBACK (gdl_dock_item_grip_iconify_clicked), grip);
grip->_priv->tooltips = gtk_tooltips_new ();
g_object_ref (grip->_priv->tooltips);
gtk_object_sink (GTK_OBJECT (grip->_priv->tooltips));
gtk_tooltips_set_tip (grip->_priv->tooltips, grip->_priv->iconify_button,
_("Iconify"), _("Iconify this dock"));
gtk_tooltips_set_tip (grip->_priv->tooltips, grip->_priv->close_button,
_("Close"), _("Close this dock"));
}
static void
gdl_dock_item_grip_realize (GtkWidget *widget)
{
GdlDockItemGrip *grip = GDL_DOCK_ITEM_GRIP (widget);
GTK_WIDGET_CLASS (parent_class)->realize (widget);
if (!grip->title_window) {
GdkWindowAttr attributes;
GdkRectangle area;
GdkCursor *cursor;
ensure_title_and_icon_pixbuf (grip);
gdl_dock_item_grip_get_title_area (grip, &area);
attributes.x = area.x;
attributes.y = area.y;
attributes.width = area.width;
attributes.height = area.height;
attributes.window_type = GDK_WINDOW_TEMP;
attributes.wclass = GDK_INPUT_ONLY;
attributes.override_redirect = TRUE;
attributes.event_mask = (GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK |
GDK_BUTTON_MOTION_MASK |
gtk_widget_get_events (widget));
grip->title_window = gdk_window_new (gtk_widget_get_parent_window (widget),
&attributes,
(GDK_WA_X |
GDK_WA_Y |
GDK_WA_NOREDIR));
gdk_window_set_user_data (grip->title_window, widget);
if (GDL_DOCK_ITEM_CANT_CLOSE (grip->item))
cursor = NULL;
else if (GDL_DOCK_ITEM_CANT_ICONIFY (grip->item))
cursor = NULL;
else
cursor = gdk_cursor_new_for_display (gtk_widget_get_display (widget),
GDK_HAND2);
gdk_window_set_cursor (grip->title_window, cursor);
if (cursor)
gdk_cursor_unref (cursor);
}
}
static void
gdl_dock_item_grip_unrealize (GtkWidget *widget)
{
GdlDockItemGrip *grip = GDL_DOCK_ITEM_GRIP (widget);
if (grip->title_window) {
gdk_window_set_user_data (grip->title_window, NULL);
gdk_window_destroy (grip->title_window);
grip->title_window = NULL;
}
GTK_WIDGET_CLASS (parent_class)->unrealize (widget);
}
static void
gdl_dock_item_grip_map (GtkWidget *widget)
{
GdlDockItemGrip *grip = GDL_DOCK_ITEM_GRIP (widget);
GTK_WIDGET_CLASS (parent_class)->map (widget);
if (grip->title_window)
gdk_window_show (grip->title_window);
}
static void
gdl_dock_item_grip_unmap (GtkWidget *widget)
{
GdlDockItemGrip *grip = GDL_DOCK_ITEM_GRIP (widget);
if (grip->title_window)
gdk_window_hide (grip->title_window);
GTK_WIDGET_CLASS (parent_class)->unmap (widget);
}
static void
gdl_dock_item_grip_size_request (GtkWidget *widget,
GtkRequisition *requisition)
{
GtkRequisition child_requisition;
GtkContainer *container;
GdlDockItemGrip *grip;
gint layout_height;
g_return_if_fail (GDL_IS_DOCK_ITEM_GRIP (widget));
g_return_if_fail (requisition != NULL);
container = GTK_CONTAINER (widget);
grip = GDL_DOCK_ITEM_GRIP (widget);
requisition->width = container->border_width * 2 + ALIGN_BORDER;
requisition->height = container->border_width * 2;
ensure_title_and_icon_pixbuf (grip);
pango_layout_get_pixel_size (grip->_priv->title_layout, NULL, &layout_height);
gtk_widget_size_request (grip->_priv->close_button, &child_requisition);
requisition->width += child_requisition.width;
layout_height = MAX (layout_height, child_requisition.height);
gtk_widget_size_request (grip->_priv->iconify_button, &child_requisition);
requisition->width += child_requisition.width;
layout_height = MAX (layout_height, child_requisition.height);
requisition->height += layout_height;
if (grip->_priv->icon_pixbuf) {
requisition->width += gdk_pixbuf_get_width (grip->_priv->icon_pixbuf) + 1;
}
}
#define ELLIPSIS "..."
static void
ellipsize_layout (PangoLayout *layout, gint width)
{
PangoLayoutLine *line;
PangoLayout *ell;
gint h, w, ell_w, x;
GString *text;
if (width <= 0) {
pango_layout_set_text (layout, "", -1);
return;
}
pango_layout_get_pixel_size (layout, &w, &h);
if (w <= width) return;
/* calculate ellipsis width */
ell = pango_layout_copy (layout);
pango_layout_set_text (ell, ELLIPSIS, -1);
pango_layout_get_pixel_size (ell, &ell_w, NULL);
g_object_unref (ell);
if (width < ell_w) {
/* not even ellipsis fits, so hide the text */
pango_layout_set_text (layout, "", -1);
return;
}
/* shrink total available width by the width of the ellipsis */
width -= ell_w;
line = pango_layout_get_line (layout, 0);
text = g_string_new (pango_layout_get_text (layout));
if (pango_layout_line_x_to_index (line, width * PANGO_SCALE, &x, NULL)) {
g_string_set_size (text, x);
g_string_append (text, ELLIPSIS);
pango_layout_set_text (layout, text->str, -1);
}
g_string_free (text, TRUE);
}
static void
gdl_dock_item_grip_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GdlDockItemGrip *grip;
GtkContainer *container;
GtkRequisition button_requisition = { 0, };
GtkAllocation child_allocation;
g_return_if_fail (GDL_IS_DOCK_ITEM_GRIP (widget));
g_return_if_fail (allocation != NULL);
grip = GDL_DOCK_ITEM_GRIP (widget);
container = GTK_CONTAINER (widget);
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
child_allocation.x = allocation->x + container->border_width + ALIGN_BORDER;
else
child_allocation.x = allocation->x + allocation->width - container->border_width;
child_allocation.y = allocation->y + container->border_width;
gtk_widget_size_request (grip->_priv->close_button, &button_requisition);
if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_RTL)
child_allocation.x -= button_requisition.width;
child_allocation.width = button_requisition.width;
child_allocation.height = button_requisition.height;
gtk_widget_size_allocate (grip->_priv->close_button, &child_allocation);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
child_allocation.x += button_requisition.width;
gtk_widget_size_request (grip->_priv->iconify_button, &button_requisition);
if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_RTL)
child_allocation.x -= button_requisition.width;
child_allocation.width = button_requisition.width;
child_allocation.height = button_requisition.height;
gtk_widget_size_allocate (grip->_priv->iconify_button, &child_allocation);
if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_RTL)
child_allocation.x += button_requisition.width;
if (grip->title_window) {
GdkRectangle area;
/* set layout text */
ensure_title_and_icon_pixbuf (grip);
pango_layout_set_text (grip->_priv->title_layout, grip->_priv->title, -1);
gdl_dock_item_grip_get_title_area (grip, &area);
gdk_window_move_resize (grip->title_window,
area.x, area.y, area.width, area.height);
if (grip->_priv->icon_pixbuf)
area.width -= gdk_pixbuf_get_width (grip->_priv->icon_pixbuf) + 1;
/* ellipsize title if it doesn't fit the title area */
ellipsize_layout (grip->_priv->title_layout, area.width);
}
}
static void
gdl_dock_item_grip_add (GtkContainer *container,
GtkWidget *widget)
{
g_warning ("gtk_container_add not implemented for GdlDockItemGrip");
}
static void
gdl_dock_item_grip_remove (GtkContainer *container,
GtkWidget *widget)
{
g_warning ("gtk_container_remove not implemented for GdlDockItemGrip");
}
static void
gdl_dock_item_grip_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
GdlDockItemGrip *grip;
g_return_if_fail (GDL_IS_DOCK_ITEM_GRIP (container));
grip = GDL_DOCK_ITEM_GRIP (container);
if (include_internals) {
(* callback) (grip->_priv->close_button, callback_data);
(* callback) (grip->_priv->iconify_button, callback_data);
}
}
static GtkType
gdl_dock_item_grip_child_type (GtkContainer *container)
{
return G_TYPE_NONE;
}
static void
gdl_dock_item_grip_class_init (GdlDockItemGripClass *klass)
{
GObjectClass *gobject_class;
GtkObjectClass *gtk_object_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
parent_class = g_type_class_peek_parent (klass);
gobject_class = G_OBJECT_CLASS (klass);
gtk_object_class = GTK_OBJECT_CLASS (klass);
widget_class = GTK_WIDGET_CLASS (klass);
container_class = GTK_CONTAINER_CLASS (klass);
gobject_class->set_property = gdl_dock_item_grip_set_property;
gtk_object_class->destroy = gdl_dock_item_grip_destroy;
widget_class->expose_event = gdl_dock_item_grip_expose;
widget_class->realize = gdl_dock_item_grip_realize;
widget_class->unrealize = gdl_dock_item_grip_unrealize;
widget_class->map = gdl_dock_item_grip_map;
widget_class->unmap = gdl_dock_item_grip_unmap;
widget_class->size_request = gdl_dock_item_grip_size_request;
widget_class->size_allocate = gdl_dock_item_grip_size_allocate;
container_class->add = gdl_dock_item_grip_add;
container_class->remove = gdl_dock_item_grip_remove;
container_class->forall = gdl_dock_item_grip_forall;
container_class->child_type = gdl_dock_item_grip_child_type;
g_object_class_install_property (
gobject_class, PROP_ITEM,
g_param_spec_object ("item", _("Controlling dock item"),
_("Dockitem which 'owns' this grip"),
GDL_TYPE_DOCK_ITEM,
G_PARAM_WRITABLE | G_PARAM_CONSTRUCT_ONLY));
/* initialize stock images */
gdl_stock_init ();
}
GtkWidget *
gdl_dock_item_grip_new (GdlDockItem *item)
{
GdlDockItemGrip *grip = g_object_new (GDL_TYPE_DOCK_ITEM_GRIP, "item", item,
NULL);
return GTK_WIDGET (grip);
}
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