+/*

+ * gedit-spinner.c

+ * This file is part of gedit

+ *

+ * Copyright (C) 2005 - Paolo Maggi

+ * Copyright (C) 2002-2004 Marco Pesenti Gritti

+ * Copyright (C) 2004 Christian Persch

+ * Copyright (C) 2000 - Eazel, Inc.

+ *

+ * This program is free software; you can redistribute it and/or modify

+ * it under the terms of the GNU General Public License as published by

+ * the Free Software Foundation; either version 2 of the License, or

+ * (at your option) any later version.

+ *

+ * This program 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 General Public License for more details.

+ *

+ * You should have received a copy of the GNU General Public License

+ * along with this program; if not, write to the Free Software

+ * Foundation, Inc., 59 Temple Place, Suite 330,

+ * Boston, MA 02111-1307, USA.

+ */

+

+/*

+ * This widget was originally written by Andy Hertzfeld <[email protected]> for

+ * Caja. It was then modified by Marco Pesenti Gritti and Christian Persch

+ * for Epiphany.

+ *

+ * Modified by the gedit Team, 2005. See the AUTHORS file for a

+ * list of people on the gedit Team.

+ * See the ChangeLog files for a list of changes.

+ *

+ * $Id$

+ */

+

+#ifdef HAVE_CONFIG_H

+#include <config.h>

+#endif

+

+#include "gedit-spinner.h"

+

+#include <gdk-pixbuf/gdk-pixbuf.h>

+#include <gtk/gtk.h>

+

+/* Spinner cache implementation */

+

+#define GEDIT_TYPE_SPINNER_CACHE (gedit_spinner_cache_get_type())

+#define GEDIT_SPINNER_CACHE(object) (G_TYPE_CHECK_INSTANCE_CAST((object), GEDIT_TYPE_SPINNER_CACHE, GeditSpinnerCache))

+#define GEDIT_SPINNER_CACHE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GEDIT_TYPE_SPINNER_CACHE, GeditSpinnerCacheClass))

+#define GEDIT_IS_SPINNER_CACHE(object) (G_TYPE_CHECK_INSTANCE_TYPE((object), GEDIT_TYPE_SPINNER_CACHE))

+#define GEDIT_IS_SPINNER_CACHE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GEDIT_TYPE_SPINNER_CACHE))

+#define GEDIT_SPINNER_CACHE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GEDIT_TYPE_SPINNER_CACHE, GeditSpinnerCacheClass))

+

+typedef struct _GeditSpinnerCache GeditSpinnerCache;

+typedef struct _GeditSpinnerCacheClass GeditSpinnerCacheClass;

+typedef struct _GeditSpinnerCachePrivate GeditSpinnerCachePrivate;

+

+struct _GeditSpinnerCacheClass

+{

+ GObjectClass parent_class;

+};

+

+struct _GeditSpinnerCache

+{

+ GObject parent_object;

+

+ /*< private >*/

+ GeditSpinnerCachePrivate *priv;

+};

+

+#define GEDIT_SPINNER_CACHE_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), GEDIT_TYPE_SPINNER_CACHE, GeditSpinnerCachePrivate))

+

+struct _GeditSpinnerCachePrivate

+{

+ /* Hash table of GdkScreen -> GeditSpinnerCacheData */

+ GHashTable *hash;

+};

+

+typedef struct

+{

+ guint ref_count;

+ GtkIconSize size;

+ gint width;

+ gint height;

+ GdkPixbuf **animation_pixbufs;

+ guint n_animation_pixbufs;

+} GeditSpinnerImages;

+

+#define LAST_ICON_SIZE GTK_ICON_SIZE_DIALOG + 1

+#define SPINNER_ICON_NAME "process-working"

+#define SPINNER_FALLBACK_ICON_NAME "mate-spinner"

+#define GEDIT_SPINNER_IMAGES_INVALID ((GeditSpinnerImages *) 0x1)

+

+typedef struct

+{

+ GdkScreen *screen;

+ GtkIconTheme *icon_theme;

+ GeditSpinnerImages *images[LAST_ICON_SIZE];

+} GeditSpinnerCacheData;

+

+static void gedit_spinner_cache_class_init (GeditSpinnerCacheClass *klass);

+static void gedit_spinner_cache_init (GeditSpinnerCache *cache);

+

+static GObjectClass *gedit_spinner_cache_parent_class;

+

+static GType

+gedit_spinner_cache_get_type (void)

+{

+ static GType type = 0;

+

+ if (G_UNLIKELY (type == 0))

+ {

+ const GTypeInfo our_info =

+ {

+ sizeof (GeditSpinnerCacheClass),

+ NULL,

+ NULL,

+ (GClassInitFunc) gedit_spinner_cache_class_init,

+ NULL,

+ NULL,

+ sizeof (GeditSpinnerCache),

+ 0,

+ (GInstanceInitFunc) gedit_spinner_cache_init

+ };

+

+ type = g_type_register_static (G_TYPE_OBJECT,

+ "GeditSpinnerCache",

+ &our_info, 0);

+ }

+

+ return type;

+}

+

+static GeditSpinnerImages *

+gedit_spinner_images_ref (GeditSpinnerImages *images)

+{

+ g_return_val_if_fail (images != NULL, NULL);

+

+ images->ref_count++;

+

+ return images;

+}

+

+static void

+gedit_spinner_images_unref (GeditSpinnerImages *images)

+{

+ g_return_if_fail (images != NULL);

+

+ images->ref_count--;

+ if (images->ref_count == 0)

+ {

+ guint i;

+

+ /* LOG ("Freeing spinner images %p for size %d", images, images->size); */

+

+ for (i = 0; i < images->n_animation_pixbufs; ++i)

+ {

+ g_object_unref (images->animation_pixbufs[i]);

+ }

+ g_free (images->animation_pixbufs);

+

+ g_free (images);

+ }

+}

+

+static void

+gedit_spinner_cache_data_unload (GeditSpinnerCacheData *data)

+{

+ GtkIconSize size;

+ GeditSpinnerImages *images;

+

+ g_return_if_fail (data != NULL);

+

+ /* LOG ("GeditSpinnerDataCache unload for screen %p", data->screen); */

+

+ for (size = GTK_ICON_SIZE_INVALID; size < LAST_ICON_SIZE; ++size)

+ {

+ images = data->images[size];

+ data->images[size] = NULL;

+

+ if (images != NULL && images != GEDIT_SPINNER_IMAGES_INVALID)

+ {

+ gedit_spinner_images_unref (images);

+ }

+ }

+}

+

+static GdkPixbuf *

+extract_frame (GdkPixbuf *grid_pixbuf,

+ int x,

+ int y,

+ int size)

+{

+ GdkPixbuf *pixbuf;

+

+ if (x + size > gdk_pixbuf_get_width (grid_pixbuf) ||

+ y + size > gdk_pixbuf_get_height (grid_pixbuf))

+ {

+ return NULL;

+ }

+

+ pixbuf = gdk_pixbuf_new_subpixbuf (grid_pixbuf,

+ x, y,

+ size, size);

+ g_return_val_if_fail (pixbuf != NULL, NULL);

+

+ return pixbuf;

+}

+

+static GdkPixbuf *

+scale_to_size (GdkPixbuf *pixbuf,

+ int dw,

+ int dh)

+{

+ GdkPixbuf *result;

+ int pw, ph;

+

+ g_return_val_if_fail (pixbuf != NULL, NULL);

+

+ pw = gdk_pixbuf_get_width (pixbuf);

+ ph = gdk_pixbuf_get_height (pixbuf);

+

+ if (pw != dw || ph != dh)

+ {

+ result = gdk_pixbuf_scale_simple (pixbuf, dw, dh,

+ GDK_INTERP_BILINEAR);

+ g_object_unref (pixbuf);

+ return result;

+ }

+

+ return pixbuf;

+}

+

+static GeditSpinnerImages *

+gedit_spinner_images_load (GdkScreen *screen,

+ GtkIconTheme *icon_theme,

+ GtkIconSize icon_size)

+{

+ GeditSpinnerImages *images;

+ GdkPixbuf *icon_pixbuf, *pixbuf;

+ GtkIconInfo *icon_info = NULL;

+ int grid_width, grid_height, x, y, requested_size, size, isw, ish, n;

+ const char *icon;

+ GSList *list = NULL, *l;

+

+ /* LOG ("GeditSpinnerCacheData loading for screen %p at size %d", screen, icon_size); */

+

+ /* START_PROFILER ("loading spinner animation") */

+

+ if (!gtk_icon_size_lookup_for_settings (gtk_settings_get_for_screen (screen),

+ icon_size, &isw, &ish))

+ goto loser;

+

+ requested_size = MAX (ish, isw);

+

+ /* Load the animation. The 'rest icon' is the 0th frame */

+ icon_info = gtk_icon_theme_lookup_icon (icon_theme,

+ SPINNER_ICON_NAME,

+ requested_size, 0);

+ if (icon_info == NULL)

+ {

+ g_warning ("Throbber animation not found");

+

+ /* If the icon naming spec compliant name wasn't found, try the old name */

+ icon_info = gtk_icon_theme_lookup_icon (icon_theme,

+ SPINNER_FALLBACK_ICON_NAME,

+ requested_size, 0);

+ if (icon_info == NULL)

+ {

+ g_warning ("Throbber fallback animation not found either");

+ goto loser;

+ }

+ }

+

+ g_assert (icon_info != NULL);

+

+ size = gtk_icon_info_get_base_size (icon_info);

+ icon = gtk_icon_info_get_filename (icon_info);

+

+ if (icon == NULL)

+ goto loser;

+

+ icon_pixbuf = gdk_pixbuf_new_from_file (icon, NULL);

+ gtk_icon_info_free (icon_info);

+ icon_info = NULL;

+

+ if (icon_pixbuf == NULL)

+ {

+ g_warning ("Could not load the spinner file");

+ goto loser;

+ }

+

+ grid_width = gdk_pixbuf_get_width (icon_pixbuf);

+ grid_height = gdk_pixbuf_get_height (icon_pixbuf);

+

+ n = 0;

+ for (y = 0; y < grid_height; y += size)

+ {

+ for (x = 0; x < grid_width ; x += size)

+ {

+ pixbuf = extract_frame (icon_pixbuf, x, y, size);

+

+ if (pixbuf)

+ {

+ list = g_slist_prepend (list, pixbuf);

+ ++n;

+ }

+ else

+ {

+ g_warning ("Cannot extract frame (%d, %d) from the grid\n", x, y);

+ }

+ }

+ }

+

+ g_object_unref (icon_pixbuf);

+

+ if (list == NULL)

+ goto loser;

+

+ /* g_assert (n > 0); */

+

+ if (size > requested_size)

+ {

+ for (l = list; l != NULL; l = l->next)

+ {

+ l->data = scale_to_size (l->data, isw, ish);

+ }

+ }

+

+ /* Now we've successfully got all the data */

+ images = g_new (GeditSpinnerImages, 1);

+ images->ref_count = 1;

+

+ images->size = icon_size;

+ images->width = images->height = requested_size;

+

+ images->n_animation_pixbufs = n;

+ images->animation_pixbufs = g_new (GdkPixbuf *, n);

+

+ for (l = list; l != NULL; l = l->next)

+ {

+ g_assert (l->data != NULL);

+ images->animation_pixbufs[--n] = l->data;

+ }

+ g_assert (n == 0);

+

+ g_slist_free (list);

+

+ /* STOP_PROFILER ("loading spinner animation") */

+ return images;

+

+loser:

+ if (icon_info)

+ {

+ gtk_icon_info_free (icon_info);

+ }

+

+ g_slist_foreach (list, (GFunc) g_object_unref, NULL);

+

+ /* STOP_PROFILER ("loading spinner animation") */

+

+ return NULL;

+}

+

+static GeditSpinnerCacheData *

+gedit_spinner_cache_data_new (GdkScreen *screen)

+{

+ GeditSpinnerCacheData *data;

+

+ data = g_new0 (GeditSpinnerCacheData, 1);

+

+ data->screen = screen;

+ data->icon_theme = gtk_icon_theme_get_for_screen (screen);

+ g_signal_connect_swapped (data->icon_theme,

+ "changed",

+ G_CALLBACK (gedit_spinner_cache_data_unload),

+ data);

+

+ return data;

+}

+

+static void

+gedit_spinner_cache_data_free (GeditSpinnerCacheData *data)

+{

+ g_return_if_fail (data != NULL);

+ g_return_if_fail (data->icon_theme != NULL);

+

+ g_signal_handlers_disconnect_by_func (data->icon_theme,

+ G_CALLBACK (gedit_spinner_cache_data_unload),

+ data);

+

+ gedit_spinner_cache_data_unload (data);

+

+ g_free (data);

+}

+

+static GeditSpinnerImages *

+gedit_spinner_cache_get_images (GeditSpinnerCache *cache,

+ GdkScreen *screen,

+ GtkIconSize icon_size)

+{

+ GeditSpinnerCachePrivate *priv = cache->priv;

+ GeditSpinnerCacheData *data;

+ GeditSpinnerImages *images;

+

+ /* LOG ("Getting animation images for screen %p at size %d", screen, icon_size); */

+

+ g_return_val_if_fail (icon_size >= 0 && icon_size < LAST_ICON_SIZE, NULL);

+

+ /* Backward compat: "invalid" meant "native" size which doesn't exist anymore */

+ if (icon_size == GTK_ICON_SIZE_INVALID)

+ {

+ icon_size = GTK_ICON_SIZE_DIALOG;

+ }

+

+ data = g_hash_table_lookup (priv->hash, screen);

+ if (data == NULL)

+ {

+ data = gedit_spinner_cache_data_new (screen);

+ /* FIXME: think about what happens when the screen's display is closed later on */

+ g_hash_table_insert (priv->hash, screen, data);

+ }

+

+ images = data->images[icon_size];

+ if (images == GEDIT_SPINNER_IMAGES_INVALID)

+ {

+ /* Load failed, but don't try endlessly again! */

+ return NULL;

+ }

+

+ if (images != NULL)

+ {

+ /* Return cached data */

+ return gedit_spinner_images_ref (images);

+ }

+

+ images = gedit_spinner_images_load (screen, data->icon_theme, icon_size);

+

+ if (images == NULL)

+ {

+ /* Mark as failed-to-load */

+ data->images[icon_size] = GEDIT_SPINNER_IMAGES_INVALID;

+

+ return NULL;

+ }

+

+ data->images[icon_size] = images;

+

+ return gedit_spinner_images_ref (images);

+}

+

+static void

+gedit_spinner_cache_init (GeditSpinnerCache *cache)

+{

+ GeditSpinnerCachePrivate *priv;

+

+ priv = cache->priv = GEDIT_SPINNER_CACHE_GET_PRIVATE (cache);

+

+ /* LOG ("GeditSpinnerCache initialising"); */

+

+ priv->hash = g_hash_table_new_full (g_direct_hash,

+ g_direct_equal,

+ NULL,

+ (GDestroyNotify) gedit_spinner_cache_data_free);

+}

+

+static void

+gedit_spinner_cache_finalize (GObject *object)

+{

+ GeditSpinnerCache *cache = GEDIT_SPINNER_CACHE (object);

+ GeditSpinnerCachePrivate *priv = cache->priv;

+

+ g_hash_table_destroy (priv->hash);

+

+ /* LOG ("GeditSpinnerCache finalised"); */

+

+ G_OBJECT_CLASS (gedit_spinner_cache_parent_class)->finalize (object);

+}

+

+static void

+gedit_spinner_cache_class_init (GeditSpinnerCacheClass *klass)

+{

+ GObjectClass *object_class = G_OBJECT_CLASS (klass);

+

+ gedit_spinner_cache_parent_class = g_type_class_peek_parent (klass);

+

+ object_class->finalize = gedit_spinner_cache_finalize;

+

+ g_type_class_add_private (object_class, sizeof (GeditSpinnerCachePrivate));

+}

+

+static GeditSpinnerCache *spinner_cache = NULL;

+

+static GeditSpinnerCache *

+gedit_spinner_cache_ref (void)

+{

+ if (spinner_cache == NULL)

+ {

+ GeditSpinnerCache **cache_ptr;

+

+ spinner_cache = g_object_new (GEDIT_TYPE_SPINNER_CACHE, NULL);

+ cache_ptr = &spinner_cache;

+ g_object_add_weak_pointer (G_OBJECT (spinner_cache),

+ (gpointer *) cache_ptr);

+

+ return spinner_cache;

+ }

+

+ return g_object_ref (spinner_cache);

+}

+

+/* Spinner implementation */

+

+#define SPINNER_TIMEOUT 125 /* ms */

+

+#define GEDIT_SPINNER_GET_PRIVATE(object)(G_TYPE_INSTANCE_GET_PRIVATE ((object), GEDIT_TYPE_SPINNER, GeditSpinnerPrivate))

+

+struct _GeditSpinnerPrivate

+{

+ GtkIconTheme *icon_theme;

+ GeditSpinnerCache *cache;

+ GtkIconSize size;

+ GeditSpinnerImages *images;

+ guint current_image;

+ guint timeout;

+ guint timer_task;

+ guint spinning : 1;

+ guint need_load : 1;

+};

+

+static void gedit_spinner_class_init (GeditSpinnerClass *class);

+static void gedit_spinner_init (GeditSpinner *spinner);

+

+static GObjectClass *parent_class;

+

+GType

+gedit_spinner_get_type (void)

+{

+ static GType type = 0;

+

+ if (G_UNLIKELY (type == 0))

+ {

+ const GTypeInfo our_info =

+ {

+ sizeof (GeditSpinnerClass),

+ NULL, /* base_init */

+ NULL, /* base_finalize */

+ (GClassInitFunc) gedit_spinner_class_init,

+ NULL,

+ NULL, /* class_data */

+ sizeof (GeditSpinner),

+ 0, /* n_preallocs */

+ (GInstanceInitFunc) gedit_spinner_init

+ };

+

+ type = g_type_register_static (GTK_TYPE_WIDGET,

+ "GeditSpinner",

+ &our_info, 0);

+ }

+

+ return type;

+}

+

+static gboolean

+gedit_spinner_load_images (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ if (priv->need_load)

+ {

+ /* START_PROFILER ("gedit_spinner_load_images") */

+

+ priv->images =

+ gedit_spinner_cache_get_images (priv->cache,

+ gtk_widget_get_screen (GTK_WIDGET (spinner)),

+ priv->size);

+

+ /* STOP_PROFILER ("gedit_spinner_load_images") */

+

+ priv->current_image = 0; /* 'rest' icon */

+ priv->need_load = FALSE;

+ }

+

+ return priv->images != NULL;

+}

+

+static void

+gedit_spinner_unload_images (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ if (priv->images != NULL)

+ {

+ gedit_spinner_images_unref (priv->images);

+ priv->images = NULL;

+ }

+

+ priv->current_image = 0;

+ priv->need_load = TRUE;

+}

+

+static void

+icon_theme_changed_cb (GtkIconTheme *icon_theme,

+ GeditSpinner *spinner)

+{

+ gedit_spinner_unload_images (spinner);

+ gtk_widget_queue_resize (GTK_WIDGET (spinner));

+}

+

+static void

+gedit_spinner_init (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv;

+

+ priv = spinner->priv = GEDIT_SPINNER_GET_PRIVATE (spinner);

+

+ GTK_WIDGET_SET_FLAGS (GTK_WIDGET (spinner), GTK_NO_WINDOW);

+

+ priv->cache = gedit_spinner_cache_ref ();

+ priv->size = GTK_ICON_SIZE_DIALOG;

+ priv->spinning = FALSE;

+ priv->timeout = SPINNER_TIMEOUT;

+ priv->need_load = TRUE;

+}

+

+static int

+gedit_spinner_expose (GtkWidget *widget,

+ GdkEventExpose *event)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (widget);

+ GeditSpinnerPrivate *priv = spinner->priv;

+ GeditSpinnerImages *images;

+ GdkPixbuf *pixbuf;

+ GdkGC *gc;

+ int x_offset, y_offset, width, height;

+ GdkRectangle pix_area, dest;

+

+ if (!GTK_WIDGET_DRAWABLE (spinner))

+ {

+ return FALSE;

+ }

+

+ if (priv->need_load &&

+ !gedit_spinner_load_images (spinner))

+ {

+ return FALSE;

+ }

+

+ images = priv->images;

+ if (images == NULL)

+ {

+ return FALSE;

+ }

+

+ /* Otherwise |images| will be NULL anyway */

+ g_assert (images->n_animation_pixbufs > 0);

+

+ g_assert (priv->current_image >= 0 &&

+ priv->current_image < images->n_animation_pixbufs);

+

+ pixbuf = images->animation_pixbufs[priv->current_image];

+

+ g_assert (pixbuf != NULL);

+

+ width = gdk_pixbuf_get_width (pixbuf);

+ height = gdk_pixbuf_get_height (pixbuf);

+

+ /* Compute the offsets for the image centered on our allocation */

+ x_offset = (widget->allocation.width - width) / 2;

+ y_offset = (widget->allocation.height - height) / 2;

+

+ pix_area.x = x_offset + widget->allocation.x;

+ pix_area.y = y_offset + widget->allocation.y;

+ pix_area.width = width;

+ pix_area.height = height;

+

+ if (!gdk_rectangle_intersect (&event->area, &pix_area, &dest))

+ {

+ return FALSE;

+ }

+

+ gc = gdk_gc_new (widget->window);

+ gdk_draw_pixbuf (widget->window, gc, pixbuf,

+ dest.x - x_offset - widget->allocation.x,

+ dest.y - y_offset - widget->allocation.y,

+ dest.x, dest.y,

+ dest.width, dest.height,

+ GDK_RGB_DITHER_MAX, 0, 0);

+ g_object_unref (gc);

+

+ return FALSE;

+}

+

+static gboolean

+bump_spinner_frame_cb (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ /* This can happen when we've unloaded the images on a theme

+ * change, but haven't been in the queued size request yet.

+ * Just skip this update.

+ */

+ if (priv->images == NULL)

+ return TRUE;

+

+ priv->current_image++;

+ if (priv->current_image >= priv->images->n_animation_pixbufs)

+ {

+ /* the 0th frame is the 'rest' icon */

+ priv->current_image = MIN (1, priv->images->n_animation_pixbufs);

+ }

+

+ gtk_widget_queue_draw (GTK_WIDGET (spinner));

+

+ /* run again */

+ return TRUE;

+}

+

+/**

+ * gedit_spinner_start:

+ * @spinner: a #GeditSpinner

+ *

+ * Start the spinner animation.

+ **/

+void

+gedit_spinner_start (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ priv->spinning = TRUE;

+

+ if (GTK_WIDGET_MAPPED (GTK_WIDGET (spinner)) &&

+ priv->timer_task == 0 &&

+ gedit_spinner_load_images (spinner))

+ {

+ /* the 0th frame is the 'rest' icon */

+ priv->current_image = MIN (1, priv->images->n_animation_pixbufs);

+

+ priv->timer_task = g_timeout_add_full (G_PRIORITY_LOW,

+ priv->timeout,

+ (GSourceFunc) bump_spinner_frame_cb,

+ spinner,

+ NULL);

+ }

+}

+

+static void

+gedit_spinner_remove_update_callback (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ if (priv->timer_task != 0)

+ {

+ g_source_remove (priv->timer_task);

+ priv->timer_task = 0;

+ }

+}

+

+/**

+ * gedit_spinner_stop:

+ * @spinner: a #GeditSpinner

+ *

+ * Stop the spinner animation.

+ **/

+void

+gedit_spinner_stop (GeditSpinner *spinner)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ priv->spinning = FALSE;

+ priv->current_image = 0;

+

+ if (priv->timer_task != 0)

+ {

+ gedit_spinner_remove_update_callback (spinner);

+

+ if (GTK_WIDGET_MAPPED (GTK_WIDGET (spinner)))

+ gtk_widget_queue_draw (GTK_WIDGET (spinner));

+ }

+}

+

+/*

+ * gedit_spinner_set_size:

+ * @spinner: a #GeditSpinner

+ * @size: the size of type %GtkIconSize

+ *

+ * Set the size of the spinner.

+ **/

+void

+gedit_spinner_set_size (GeditSpinner *spinner,

+ GtkIconSize size)

+{

+ if (size == GTK_ICON_SIZE_INVALID)

+ {

+ size = GTK_ICON_SIZE_DIALOG;

+ }

+

+ if (size != spinner->priv->size)

+ {

+ gedit_spinner_unload_images (spinner);

+

+ spinner->priv->size = size;

+

+ gtk_widget_queue_resize (GTK_WIDGET (spinner));

+ }

+}

+

+#if 0

+/*

+* gedit_spinner_set_timeout:

+* @spinner: a #GeditSpinner

+* @timeout: time delay between updates to the spinner.

+*

+* Sets the timeout delay for spinner updates.

+**/

+void

+gedit_spinner_set_timeout (GeditSpinner *spinner,

+ guint timeout)

+{

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ if (timeout != priv->timeout)

+ {

+ gedit_spinner_stop (spinner);

+

+ priv->timeout = timeout;

+

+ if (priv->spinning)

+ {

+ gedit_spinner_start (spinner);

+ }

+ }

+}

+#endif

+

+static void

+gedit_spinner_size_request (GtkWidget *widget,

+ GtkRequisition *requisition)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (widget);

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ if ((priv->need_load &&

+ !gedit_spinner_load_images (spinner)) ||

+ priv->images == NULL)

+ {

+ requisition->width = requisition->height = 0;

+ gtk_icon_size_lookup_for_settings (gtk_widget_get_settings (widget),

+ priv->size,

+ &requisition->width,

+ &requisition->height);

+ return;

+ }

+

+ requisition->width = priv->images->width;

+ requisition->height = priv->images->height;

+

+ /* FIXME fix this hack */

+ /* allocate some extra margin so we don't butt up against toolbar edges */

+ if (priv->size != GTK_ICON_SIZE_MENU)

+ {

+ requisition->width += 2;

+ requisition->height += 2;

+ }

+}

+

+static void

+gedit_spinner_map (GtkWidget *widget)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (widget);

+ GeditSpinnerPrivate *priv = spinner->priv;

+

+ GTK_WIDGET_CLASS (parent_class)->map (widget);

+

+ if (priv->spinning)

+ {

+ gedit_spinner_start (spinner);

+ }

+}

+

+static void

+gedit_spinner_unmap (GtkWidget *widget)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (widget);

+

+ gedit_spinner_remove_update_callback (spinner);

+

+ GTK_WIDGET_CLASS (parent_class)->unmap (widget);

+}

+

+static void

+gedit_spinner_dispose (GObject *object)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (object);

+

+ g_signal_handlers_disconnect_by_func

+ (spinner->priv->icon_theme,

+ G_CALLBACK (icon_theme_changed_cb), spinner);

+

+ G_OBJECT_CLASS (parent_class)->dispose (object);

+}

+

+static void

+gedit_spinner_finalize (GObject *object)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (object);

+

+ gedit_spinner_remove_update_callback (spinner);

+ gedit_spinner_unload_images (spinner);

+

+ g_object_unref (spinner->priv->cache);

+

+ G_OBJECT_CLASS (parent_class)->finalize (object);

+}

+

+static void

+gedit_spinner_screen_changed (GtkWidget *widget,

+ GdkScreen *old_screen)

+{

+ GeditSpinner *spinner = GEDIT_SPINNER (widget);

+ GeditSpinnerPrivate *priv = spinner->priv;

+ GdkScreen *screen;

+

+ if (GTK_WIDGET_CLASS (parent_class)->screen_changed)

+ {

+ GTK_WIDGET_CLASS (parent_class)->screen_changed (widget, old_screen);

+ }

+

+ screen = gtk_widget_get_screen (widget);

+

+ /* FIXME: this seems to be happening when then spinner is destroyed!? */

+ if (old_screen == screen)

+ return;

+

+ /* We'll get mapped again on the new screen, but not unmapped from

+ * the old screen, so remove timeout here.

+ */

+ gedit_spinner_remove_update_callback (spinner);

+

+ gedit_spinner_unload_images (spinner);

+

+ if (old_screen != NULL)

+ {

+ g_signal_handlers_disconnect_by_func

+ (gtk_icon_theme_get_for_screen (old_screen),

+ G_CALLBACK (icon_theme_changed_cb), spinner);

+ }

+

+ priv->icon_theme = gtk_icon_theme_get_for_screen (screen);

+ g_signal_connect (priv->icon_theme, "changed",

+ G_CALLBACK (icon_theme_changed_cb), spinner);

+}

+

+static void

+gedit_spinner_class_init (GeditSpinnerClass *class)

+{

+ GObjectClass *object_class = G_OBJECT_CLASS (class);

+ GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (class);

+

+ parent_class = g_type_class_peek_parent (class);

+

+ object_class->dispose = gedit_spinner_dispose;

+ object_class->finalize = gedit_spinner_finalize;

+

+ widget_class->expose_event = gedit_spinner_expose;

+ widget_class->size_request = gedit_spinner_size_request;

+ widget_class->map = gedit_spinner_map;

+ widget_class->unmap = gedit_spinner_unmap;

+ widget_class->screen_changed = gedit_spinner_screen_changed;

+

+ g_type_class_add_private (object_class, sizeof (GeditSpinnerPrivate));

+}

+

+/*

+ * gedit_spinner_new:

+ *

+ * Create a new #GeditSpinner. The spinner is a widget

+ * that gives the user feedback about network status with

+ * an animated image.

+ *

+ * Return Value: the spinner #GtkWidget

+ **/

+GtkWidget *

+gedit_spinner_new (void)

+{

+ return GTK_WIDGET (g_object_new (GEDIT_TYPE_SPINNER, NULL));

+}