Commit 3a422541 authored by Havoc Pennington's avatar Havoc Pennington Committed by Havoc Pennington

Convert GdkPixbuf to GObject, leaving it opaque (i.e. derivation is not

2000-06-21  Havoc Pennington  <hp@pobox.com>

* gdk-pixbuf.c: Convert GdkPixbuf to GObject, leaving it opaque
(i.e. derivation is not allowed, and there are no virtual methods
anyway).
(gdk_pixbuf_preinit): Call g_type_init() here.
(gdk_pixbuf_init): Add a user-friendly init function, for users
of standalone gdk-pixbuf

* gdk-pixbuf-animation.c: Convert to GObject, in the same
way GdkPixbufAnimation was done.

* gdk-pixbuf.h: Remove gdk_pixbuf_set_unref_handler() and
gdk_pixbuf_finalize() from API, since these are broken and don't
make sense with new GObject stuff.

2000-06-21  Havoc Pennington  <hp@pobox.com>

* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.

* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
parent 7b6c38f5
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk/gdkwindow.c (_gdk_window_destroy_hierarchy): Fix bug where
we didn't check window->bg_pixmap != GDK_NO_BG.
* gtk/gdk-pixbuf-loader.c: Change to reflect GObject-ification of
gdk-pixbuf
Thu Jun 22 14:02:19 BST 2000 Tony Gale <gale@gtk.org>
* docs/faq/gtk-faq.sgm: Move file to here.
......
......@@ -495,7 +495,7 @@ main (int argc, char **argv)
GdkPixbufLoader *pixbuf_loader;
pixbuf_init ();
gtk_init (&argc, &argv);
gdk_rgb_set_verbose (TRUE);
......
2000-06-21 Havoc Pennington <hp@pobox.com>
* gdk-pixbuf.c: Convert GdkPixbuf to GObject, leaving it opaque
(i.e. derivation is not allowed, and there are no virtual methods
anyway).
(gdk_pixbuf_preinit): Call g_type_init() here.
(gdk_pixbuf_init): Add a user-friendly init function, for users
of standalone gdk-pixbuf
* gdk-pixbuf-animation.c: Convert to GObject, in the same
way GdkPixbufAnimation was done.
* gdk-pixbuf.h: Remove gdk_pixbuf_set_unref_handler() and
gdk_pixbuf_finalize() from API, since these are broken and don't
make sense with new GObject stuff.
Wed Jun 21 16:02:48 2000 Owen Taylor <otaylor@redhat.com>
* gdk-pixbuf-io.c (gdk_pixbuf_load_module): Add feature to
......
......@@ -25,6 +25,68 @@
#include "gdk-pixbuf-io.h"
#include "gdk-pixbuf-private.h"
static void gdk_pixbuf_animation_class_init (GdkPixbufAnimationClass *klass);
static void gdk_pixbuf_animation_finalize (GObject *object);
static gpointer parent_class;
GType
gdk_pixbuf_animation_get_type (void)
{
static GType object_type = 0;
if (!object_type) {
static const GTypeInfo object_info = {
sizeof (GdkPixbufAnimationClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_pixbuf_animation_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkPixbufAnimation),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkPixbufAnimation",
&object_info);
}
return object_type;
}
static void
gdk_pixbuf_animation_class_init (GdkPixbufAnimationClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_pixbuf_animation_finalize;
}
static void
gdk_pixbuf_animation_finalize (GObject *object)
{
GdkPixbufAnimation *animation = GDK_PIXBUF_ANIMATION (object);
GList *l;
GdkPixbufFrame *frame;
for (l = animation->frames; l; l = l->next) {
frame = l->data;
gdk_pixbuf_unref (frame->pixbuf);
g_free (frame);
}
g_list_free (animation->frames);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
......@@ -87,10 +149,8 @@ gdk_pixbuf_animation_new_from_file (const char *filename)
pixbuf = (* image_module->load) (f);
fclose (f);
if (pixbuf)
g_assert (pixbuf->ref_count > 0);
else
return NULL;
if (pixbuf == NULL)
return NULL;
frame = g_new (GdkPixbufFrame, 1);
frame->pixbuf = pixbuf;
......@@ -99,8 +159,8 @@ gdk_pixbuf_animation_new_from_file (const char *filename)
frame->delay_time = -1;
frame->action = GDK_PIXBUF_FRAME_RETAIN;
animation = g_new0 (GdkPixbufAnimation, 1);
animation->ref_count = 1;
animation = GDK_PIXBUF_ANIMATION (g_type_create_instance (GDK_TYPE_PIXBUF_ANIMATION));
animation->n_frames = 1;
animation->frames = g_list_prepend (NULL, frame);
animation->width = gdk_pixbuf_get_width (pixbuf);
......@@ -118,50 +178,28 @@ gdk_pixbuf_animation_new_from_file (const char *filename)
* gdk_pixbuf_animation_ref:
* @animation: An animation.
*
* Adds a reference to an animation. It must be released afterwards using
* gdk_pixbuf_animation_unref().
* Adds a reference to an animation. Deprecated; use
* g_object_ref(). The reference must be released afterwards using
* g_object_unref().
*
* Return value: The same as the @animation argument.
**/
GdkPixbufAnimation *
gdk_pixbuf_animation_ref (GdkPixbufAnimation *animation)
{
g_return_val_if_fail (animation != NULL, NULL);
g_return_val_if_fail (animation->ref_count > 0, NULL);
animation->ref_count++;
return animation;
return (GdkPixbufAnimation*) g_object_ref (G_OBJECT (animation));
}
/**
* gdk_pixbuf_animation_unref:
* @animation: An animation.
*
* Removes a reference from an animation. It will be destroyed when the
* reference count drops to zero. At that point, all the frames in the
* animation will be freed and their corresponding pixbufs will be unreferenced.
* Removes a reference from an animation. Deprecated; use g_object_unref().
**/
void
gdk_pixbuf_animation_unref (GdkPixbufAnimation *animation)
{
g_return_if_fail (animation != NULL);
g_return_if_fail (animation->ref_count > 0);
animation->ref_count--;
if (animation->ref_count == 0) {
GList *l;
GdkPixbufFrame *frame;
for (l = animation->frames; l; l = l->next) {
frame = l->data;
gdk_pixbuf_unref (frame->pixbuf);
g_free (frame);
}
g_list_free (animation->frames);
g_free (animation);
}
g_object_unref (G_OBJECT (animation));
}
/**
......
......@@ -60,8 +60,8 @@ gdk_pixbuf_new_from_data (const guchar *data, GdkColorspace colorspace, gboolean
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
pixbuf = g_new0 (GdkPixbuf, 1);
pixbuf->ref_count = 1;
pixbuf = GDK_PIXBUF (g_type_create_instance (GDK_TYPE_PIXBUF));
pixbuf->colorspace = colorspace;
pixbuf->n_channels = has_alpha ? 4 : 3;
pixbuf->bits_per_sample = bits_per_sample;
......
......@@ -451,9 +451,6 @@ gdk_pixbuf_new_from_file (const char *filename)
pixbuf = (* image_module->load) (f);
fclose (f);
if (pixbuf)
g_assert (pixbuf->ref_count > 0);
return pixbuf;
}
......
......@@ -270,9 +270,9 @@ gdk_pixbuf_loader_frame_done (GdkPixbufFrame *frame, gpointer loader)
priv->pixbuf = NULL;
if (priv->animation == NULL) {
priv->animation = g_new0 (GdkPixbufAnimation, 1);
priv->animation = GDK_PIXBUF_ANIMATION (g_type_create_instance (GDK_TYPE_PIXBUF_ANIMATION));
priv->animation->n_frames = 0;
priv->animation->ref_count = 1;
priv->animation->width = gdk_pixbuf_get_width (frame->pixbuf) + frame->x_offset;
priv->animation->height = gdk_pixbuf_get_height (frame->pixbuf) + frame->y_offset;
} else {
......
......@@ -30,10 +30,15 @@
typedef struct _GdkPixbufClass GdkPixbufClass;
#define GDK_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF, GdkPixbufClass))
#define GDK_IS_PIXBUF_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF))
#define GDK_PIXBUF_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF, GdkPixbufClass))
/* Private part of the GdkPixbuf structure */
struct _GdkPixbuf {
/* Reference count */
int ref_count;
GObject parent_instance;
/* Color space */
GdkColorspace colorspace;
......@@ -59,16 +64,15 @@ struct _GdkPixbuf {
/* User data for the destroy notification function */
gpointer destroy_fn_data;
/* Last unref handler, determines whether the pixbuf should be finalized */
GdkPixbufLastUnref last_unref_fn;
/* User data for the last unref handler */
gpointer last_unref_fn_data;
/* Do we have an alpha channel? */
guint has_alpha : 1;
};
struct _GdkPixbufClass {
GObjectClass parent_class;
};
/* Private part of the GdkPixbufFrame structure */
struct _GdkPixbufFrame {
/* The pixbuf with this frame's image data */
......@@ -85,10 +89,15 @@ struct _GdkPixbufFrame {
GdkPixbufFrameAction action;
};
typedef struct _GdkPixbufAnimationClass GdkPixbufAnimationClass;
#define GDK_PIXBUF_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
#define GDK_IS_PIXBUF_ANIMATION_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GDK_TYPE_PIXBUF_ANIMATION))
#define GDK_PIXBUF_ANIMATION_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimationClass))
/* Private part of the GdkPixbufAnimation structure */
struct _GdkPixbufAnimation {
/* Reference count */
int ref_count;
GObject parent_instance;
/* Number of frames */
int n_frames;
......@@ -100,6 +109,12 @@ struct _GdkPixbufAnimation {
int width, height;
};
struct _GdkPixbufAnimationClass {
GObjectClass parent_class;
};
#endif
......@@ -28,97 +28,86 @@
#include "gdk-pixbuf.h"
#include "gdk-pixbuf-private.h"
static void gdk_pixbuf_class_init (GdkPixbufClass *klass);
static void gdk_pixbuf_finalize (GObject *object);
/* Reference counting */
static gpointer parent_class;
GType
gdk_pixbuf_get_type (void)
{
static GType object_type = 0;
if (!object_type) {
static const GTypeInfo object_info = {
sizeof (GdkPixbufClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gdk_pixbuf_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GdkPixbuf),
0, /* n_preallocs */
(GInstanceInitFunc) NULL,
};
object_type = g_type_register_static (G_TYPE_OBJECT,
"GdkPixbuf",
&object_info);
}
return object_type;
}
static void
gdk_pixbuf_class_init (GdkPixbufClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gdk_pixbuf_finalize;
}
static void
gdk_pixbuf_finalize (GObject *object)
{
GdkPixbuf *pixbuf = GDK_PIXBUF (object);
if (pixbuf->destroy_fn)
(* pixbuf->destroy_fn) (pixbuf->pixels, pixbuf->destroy_fn_data);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
/**
* gdk_pixbuf_ref:
* @pixbuf: A pixbuf.
*
* Adds a reference to a pixbuf. It must be released afterwards using
* gdk_pixbuf_unref().
* Adds a reference to a pixbuf. Deprecated; use g_object_ref().
*
* Return value: The same as the @pixbuf argument.
**/
GdkPixbuf *
gdk_pixbuf_ref (GdkPixbuf *pixbuf)
{
g_return_val_if_fail (pixbuf != NULL, NULL);
g_return_val_if_fail (pixbuf->ref_count > 0, NULL);
pixbuf->ref_count++;
return pixbuf;
return (GdkPixbuf *) g_object_ref (G_OBJECT(pixbuf));
}
/**
* gdk_pixbuf_unref:
* @pixbuf: A pixbuf.
*
* Removes a reference from a pixbuf. If this is the last reference for the
* @pixbuf, then its last unref handler function will be called; if no handler
* has been defined, then the pixbuf will be finalized.
* Removes a reference from a pixbuf. Deprecated; use
* g_object_unref().
*
* See also: gdk_pixbuf_set_last_unref_handler().
**/
void
gdk_pixbuf_unref (GdkPixbuf *pixbuf)
{
g_return_if_fail (pixbuf != NULL);
g_return_if_fail (pixbuf->ref_count > 0);
if (pixbuf->ref_count > 1)
pixbuf->ref_count--;
else if (pixbuf->last_unref_fn)
(* pixbuf->last_unref_fn) (pixbuf, pixbuf->last_unref_fn_data);
else
gdk_pixbuf_finalize (pixbuf);
}
/**
* gdk_pixbuf_set_last_unref_handler:
* @pixbuf: A pixbuf.
* @last_unref_fn: Handler function for the last unref.
* @last_unref_fn_data: Closure data to pass to the last unref handler function.
*
* Sets the handler function for the @pixbuf's last unref handler. When
* gdk_pixbuf_unref() is called on this pixbuf and it has a reference count of
* 1, i.e. its last reference, then the last unref handler will be called. This
* function should determine whether to finalize the pixbuf or just continue.
* If it wishes to finalize the pixbuf, it should do so by calling
* gdk_pixbuf_finalize().
*
* See also: gdk_pixbuf_finalize().
**/
void
gdk_pixbuf_set_last_unref_handler (GdkPixbuf *pixbuf, GdkPixbufLastUnref last_unref_fn,
gpointer last_unref_fn_data)
{
g_return_if_fail (pixbuf != NULL);
pixbuf->last_unref_fn = last_unref_fn;
pixbuf->last_unref_fn_data = last_unref_fn_data;
}
/**
* gdk_pixbuf_finalize:
* @pixbuf: A pixbuf with a reference count of 1.
*
* Finalizes a pixbuf by calling its destroy notification function to free the
* pixel data and freeing the pixbuf itself. This function is meant to be
* called only from within a #GdkPixbufLastUnref handler function, and the
* specified @pixbuf must have a reference count of 1, i.e. its last reference.
**/
void
gdk_pixbuf_finalize (GdkPixbuf *pixbuf)
{
g_return_if_fail (pixbuf != NULL);
g_return_if_fail (pixbuf->ref_count == 1);
if (pixbuf->destroy_fn)
(* pixbuf->destroy_fn) (pixbuf->pixels, pixbuf->destroy_fn_data);
g_free (pixbuf);
g_object_unref (G_OBJECT (pixbuf));
}
......@@ -357,9 +346,17 @@ const char *gdk_pixbuf_version = GDK_PIXBUF_VERSION;
void
gdk_pixbuf_preinit (gpointer app, gpointer modinfo)
{
g_type_init ();
}
void
gdk_pixbuf_postinit (gpointer app, gpointer modinfo)
{
}
void
gdk_pixbuf_init (void)
{
gdk_pixbuf_preinit (NULL, NULL);
gdk_pixbuf_postinit (NULL, NULL);
}
......@@ -32,6 +32,7 @@ extern "C" {
#include <glib.h>
#include <gdk-pixbuf/gdk-pixbuf-features.h>
#include <gobject/gobject.h>
......@@ -42,28 +43,30 @@ typedef enum {
/* All of these are opaque structures */
typedef struct _GdkPixbuf GdkPixbuf;
typedef struct _GdkPixbufFrame GdkPixbufFrame;
typedef struct _GdkPixbufAnimation GdkPixbufAnimation;
typedef struct _GdkPixbufFrame GdkPixbufFrame;
#define GDK_TYPE_PIXBUF (gdk_pixbuf_get_type ())
#define GDK_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF, GdkPixbuf))
#define GDK_IS_PIXBUF(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF))
#define GDK_TYPE_PIXBUF_ANIMATION (gdk_pixbuf_animation_get_type ())
#define GDK_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_CAST ((object), GDK_TYPE_PIXBUF_ANIMATION, GdkPixbufAnimation))
#define GDK_IS_PIXBUF_ANIMATION(object) (G_TYPE_CHECK_INSTANCE_TYPE ((object), GDK_TYPE_PIXBUF_ANIMATION))
/* Handler that must free the pixel array */
typedef void (* GdkPixbufDestroyNotify) (guchar *pixels, gpointer data);
/* Handler for the last unref operation */
typedef void (* GdkPixbufLastUnref) (GdkPixbuf *pixbuf, gpointer data);
GType gdk_pixbuf_get_type (void);
/* Reference counting */
GdkPixbuf *gdk_pixbuf_ref (GdkPixbuf *pixbuf);
void gdk_pixbuf_unref (GdkPixbuf *pixbuf);
void gdk_pixbuf_set_last_unref_handler (GdkPixbuf *pixbuf,
GdkPixbufLastUnref last_unref_fn,
gpointer last_unref_fn_data);
void gdk_pixbuf_finalize (GdkPixbuf *pixbuf);
/* GdkPixbuf accessors */
GdkColorspace gdk_pixbuf_get_colorspace (const GdkPixbuf *pixbuf);
......@@ -192,6 +195,8 @@ typedef enum {
GDK_PIXBUF_FRAME_REVERT
} GdkPixbufFrameAction;
GType gdk_pixbuf_animation_get_type (void);
GdkPixbufAnimation *gdk_pixbuf_animation_new_from_file (const char *filename);
GdkPixbufAnimation *gdk_pixbuf_animation_ref (GdkPixbufAnimation *animation);
......@@ -214,6 +219,8 @@ GdkPixbufFrameAction gdk_pixbuf_frame_get_action (GdkPixbufFrame *frame);
/* General (presently empty) initialization hooks, primarily for gnome-libs */
void gdk_pixbuf_preinit (gpointer app, gpointer modinfo);
void gdk_pixbuf_postinit (gpointer app, gpointer modinfo);
/* A more user-friendly init function */
void gdk_pixbuf_init (void);
......
......@@ -1214,8 +1214,8 @@ gdk_pixbuf__gif_image_load_animation (FILE *file)
g_return_val_if_fail (file != NULL, NULL);
context = new_context ();
context->animation = g_new (GdkPixbufAnimation, 1);
context->animation->ref_count = 1;
context->animation = GDK_PIXBUF_ANIMATION (g_type_create_instance (GDK_TYPE_PIXBUF_ANIMATION));
context->animation->n_frames = 0;
context->animation->frames = NULL;
context->animation->width = 0;
......
......@@ -226,9 +226,11 @@ int
main (int argc, char **argv)
{
int result;
result = EXIT_SUCCESS;
gdk_pixbuf_init ();
/* Run some tests. */
if (!simple_composite_test ()) {
result = EXIT_FAILURE;
......
......@@ -288,7 +288,9 @@ _gdk_window_destroy_hierarchy (GdkWindow *window,
_gdk_window_clear_update_area (window);
gdk_window_free_paint_stack (window);
if (private->bg_pixmap && private->bg_pixmap != GDK_PARENT_RELATIVE_BG)
if (private->bg_pixmap &&
private->bg_pixmap != GDK_PARENT_RELATIVE_BG &&
private->bg_pixmap != GDK_NO_BG)
{
gdk_pixmap_unref (private->bg_pixmap);
private->bg_pixmap = NULL;
......
......@@ -270,9 +270,9 @@ gdk_pixbuf_loader_frame_done (GdkPixbufFrame *frame, gpointer loader)
priv->pixbuf = NULL;
if (priv->animation == NULL) {
priv->animation = g_new0 (GdkPixbufAnimation, 1);
priv->animation = GDK_PIXBUF_ANIMATION (g_type_create_instance (GDK_TYPE_PIXBUF_ANIMATION));
priv->animation->n_frames = 0;
priv->animation->ref_count = 1;
priv->animation->width = gdk_pixbuf_get_width (frame->pixbuf) + frame->x_offset;
priv->animation->height = gdk_pixbuf_get_height (frame->pixbuf) + frame->y_offset;
} else {
......
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