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background: Load ~/Pictures asynchronously

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Using the new gdk-pixbuf helper functions in 2.23.0.

https://bugzilla.gnome.org/show_bug.cgi?id=635601
This commit is contained in:
Bastien Nocera 2010-12-13 16:19:58 +00:00
parent 9580be8d17
commit 44fbef70a2
2 changed files with 82 additions and 23 deletions
Download patch file Download diff file Expand all files Collapse all files

2
configure.ac
View file

@ -80,6 +80,7 @@ GTK_REQUIRED_VERSION=2.91.6
DESKTOP_SCHEMAS_REQUIRED_VERSION=0.1.3
PA_REQUIRED_VERSION=0.9.16
CANBERRA_REQUIRED_VERSION=0.13
GDKPIXBUF_REQUIRED_VERSION=2.23.0
COMMON_MODULES="gtk+-3.0 >= $GTK_REQUIRED_VERSION
glib-2.0 >= $GLIB_REQUIRED_VERSION
@ -98,6 +99,7 @@ PKG_CHECK_MODULES(GIO, gio-2.0 gio-unix-2.0)
PKG_CHECK_MODULES(XML, libxml-2.0)
PKG_CHECK_MODULES(UPOWER, upower-glib >= 0.9.1)
PKG_CHECK_MODULES(CANBERRA, libcanberra-gtk3 >= $CANBERRA_REQUIRED_VERSION)
PKG_CHECK_MODULES(PIXBUF, gdk-pixbuf-2.0 >= $GDKPIXBUF_REQUIRED_VERSION)
AC_SUBST(CANBERRA_CFLAGS)
AC_SUBST(CANBERRA_LIBS)
PKG_CHECK_MODULES(PULSEAUDIO,

103
panels/background/bg-pictures-source.c
View file

@ -116,6 +116,80 @@ bg_pictures_source_class_init (BgPicturesSourceClass *klass)
object_class->finalize = bg_pictures_source_finalize;
}
static void
picture_scaled (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
BgPicturesSource *bg_source = BG_PICTURES_SOURCE (user_data);
GnomeWPItem *item;
GError *error = NULL;
GdkPixbuf *pixbuf;
GtkTreeIter iter;
GtkTreePath *tree_path;
GtkListStore *store;
store = bg_source_get_liststore (BG_SOURCE (bg_source));
item = g_object_get_data (source_object, "item");
pixbuf = gdk_pixbuf_new_from_stream_finish (res, &error);
if (pixbuf == NULL)
{
g_warning ("Failed to load image: %s", error->message);
g_error_free (error);
gnome_wp_item_free (item);
return;
}
/* insert the item into the liststore */
gtk_list_store_insert_with_values (store, &iter, 0,
0, pixbuf,
1, item,
-1);
tree_path = gtk_tree_model_get_path (GTK_TREE_MODEL (store),
&iter);
item->rowref = gtk_tree_row_reference_new (GTK_TREE_MODEL (store),
tree_path);
gtk_tree_path_free (tree_path);
g_object_unref (pixbuf);
}
static void
picture_opened_for_read (GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
BgPicturesSource *bg_source = BG_PICTURES_SOURCE (user_data);
GnomeWPItem *item;
GFileInputStream *stream;
GError *error = NULL;
item = g_object_get_data (source_object, "item");
stream = g_file_read_finish (G_FILE (source_object), res, &error);
if (stream == NULL)
{
char *filename;
filename = g_file_get_path (G_FILE (source_object));
g_warning ("Failed to load picture '%s': %s", filename, error->message);
g_free (filename);
g_error_free (error);
gnome_wp_item_free (item);
return;
}
g_object_set_data (G_OBJECT (stream), "item", item);
gdk_pixbuf_new_from_stream_at_scale_async (G_INPUT_STREAM (stream),
THUMBNAIL_WIDTH, THUMBNAIL_HEIGHT,
TRUE,
NULL,
picture_scaled, bg_source);
g_object_unref (stream);
}
static void
file_info_async_ready (GObject *source,
GAsyncResult *res,
@ -127,8 +201,6 @@ file_info_async_ready (GObject *source,
GError *err = NULL;
GFile *parent;
gchar *path;
GtkListStore *store = bg_source_get_liststore (BG_SOURCE (bg_source));
files = g_file_enumerator_next_files_finish (G_FILE_ENUMERATOR (source),
res,
&err);
@ -162,17 +234,15 @@ file_info_async_ready (GObject *source,
if (!strcmp ("image/png", content_type)
|| !strcmp ("image/jpeg", content_type))
{
GdkPixbuf *pixbuf;
GnomeWPItem *item;
gchar *filename;
GtkTreeIter iter;
GtkTreePath *tree_path;
GFile *file;
filename = g_build_filename (path, g_file_info_get_name (info), NULL);
/* create a new GnomeWpItem */
item = gnome_wp_item_new (filename, NULL,
info,
info,
priv->thumb_factory);
if (!item)
@ -182,24 +252,11 @@ file_info_async_ready (GObject *source,
continue;
}
/* insert the item into the liststore */
pixbuf = gdk_pixbuf_new_from_file_at_scale (filename,
THUMBNAIL_WIDTH, THUMBNAIL_HEIGHT,
TRUE,
NULL);
gtk_list_store_insert_with_values (store, &iter, 0,
0, pixbuf,
1, item,
-1);
tree_path = gtk_tree_model_get_path (GTK_TREE_MODEL (store),
&iter);
item->rowref =
gtk_tree_row_reference_new (GTK_TREE_MODEL (store),
tree_path);
gtk_tree_path_free (tree_path);
file = g_file_new_for_path (filename);
g_free (filename);
g_object_unref (pixbuf);
g_object_set_data (G_OBJECT (file), "item", item);
g_file_read_async (file, 0, NULL, picture_opened_for_read, bg_source);
g_object_unref (file);
}
}