gnome-control-center/libslab/gnome-utils.c

346 lines
6.6 KiB
C

#include "gnome-utils.h"
#include <string.h>
static void section_header_style_set (GtkWidget *, GtkStyle *, gpointer);
gboolean
load_image_by_id (GtkImage * image, GtkIconSize size, const gchar * image_id)
{
GdkPixbuf *pixbuf;
gint width;
gint height;
GtkIconTheme *icon_theme;
gchar *id;
gboolean icon_exists;
if (!image_id)
return FALSE;
id = g_strdup (image_id);
gtk_icon_size_lookup (size, &width, &height);
if (g_path_is_absolute (id))
{
pixbuf = gdk_pixbuf_new_from_file_at_size (id, width, height, NULL);
icon_exists = (pixbuf != NULL);
if (icon_exists)
{
gtk_image_set_from_pixbuf (image, pixbuf);
g_object_unref (pixbuf);
}
else
gtk_image_set_from_stock (image, "gtk-missing-image", size);
}
else
{
if ( /* file extensions are not copesetic with loading by "name" */
g_str_has_suffix (id, ".png") ||
g_str_has_suffix (id, ".svg") ||
g_str_has_suffix (id, ".xpm")
)
id[strlen (id) - 4] = '\0';
if (gtk_widget_has_screen (GTK_WIDGET (image)))
icon_theme =
gtk_icon_theme_get_for_screen (gtk_widget_get_screen (GTK_WIDGET
(image)));
else
icon_theme = gtk_icon_theme_get_default ();
icon_exists = gtk_icon_theme_has_icon (icon_theme, id);
if (icon_exists)
gtk_image_set_from_icon_name (image, id, size);
else
gtk_image_set_from_stock (image, "gtk-missing-image", size);
}
g_free (id);
return icon_exists;
}
GnomeDesktopItem *
load_desktop_item_by_unknown_id (const gchar * id)
{
GnomeDesktopItem *item;
GError *error = NULL;
item = gnome_desktop_item_new_from_uri (id, 0, &error);
if (!error)
return item;
else
{
g_error_free (error);
error = NULL;
}
item = gnome_desktop_item_new_from_file (id, 0, &error);
if (!error)
return item;
else
{
g_error_free (error);
error = NULL;
}
item = gnome_desktop_item_new_from_basename (id, 0, &error);
if (!error)
return item;
else
{
g_error_free (error);
error = NULL;
}
return NULL;
}
gpointer
get_gconf_value (const gchar * key)
{
GConfClient *client;
GConfValue *value;
GError *error = NULL;
gpointer retval = NULL;
GList *list;
GSList *slist;
GConfValue *value_i;
GSList *node;
client = gconf_client_get_default ();
value = gconf_client_get (client, key, &error);
if (error || ! value)
{
handle_g_error (&error, "%s: error getting %s", G_STRFUNC, key);
goto exit;
}
switch (value->type)
{
case GCONF_VALUE_STRING:
retval = (gpointer) g_strdup (gconf_value_get_string (value));
break;
case GCONF_VALUE_INT:
retval = GINT_TO_POINTER (gconf_value_get_int (value));
break;
case GCONF_VALUE_BOOL:
retval = GINT_TO_POINTER (gconf_value_get_bool (value));
break;
case GCONF_VALUE_LIST:
list = NULL;
slist = gconf_value_get_list (value);
for (node = slist; node; node = node->next)
{
value_i = (GConfValue *) node->data;
if (value_i->type == GCONF_VALUE_STRING)
list = g_list_append (list,
g_strdup (gconf_value_get_string (value_i)));
else if (value_i->type == GCONF_VALUE_INT)
list = g_list_append (list,
GINT_TO_POINTER (gconf_value_get_int (value_i)));
else
g_assert_not_reached ();
}
retval = (gpointer) list;
break;
default:
g_assert_not_reached ();
break;
}
exit:
g_object_unref (client);
if(value)
gconf_value_free (value);
return retval;
}
void
set_gconf_value (const gchar * key, gconstpointer data)
{
GConfClient *client;
GConfValue *value;
GConfValueType type;
GConfValueType list_type;
GSList *slist = NULL;
GError *error = NULL;
GConfValue *value_i;
GList *node;
client = gconf_client_get_default ();
value = gconf_client_get (client, key, &error);
if (error)
{
handle_g_error (&error, "%s: error getting %s", G_STRFUNC, key);
goto exit;
}
type = value->type;
list_type =
(type ==
GCONF_VALUE_LIST ? gconf_value_get_list_type (value) : GCONF_VALUE_INVALID);
gconf_value_free (value);
value = gconf_value_new (type);
if (type == GCONF_VALUE_LIST)
gconf_value_set_list_type (value, list_type);
switch (type)
{
case GCONF_VALUE_STRING:
gconf_value_set_string (value, g_strdup ((gchar *) data));
break;
case GCONF_VALUE_INT:
gconf_value_set_int (value, GPOINTER_TO_INT (data));
break;
case GCONF_VALUE_BOOL:
gconf_value_set_bool (value, GPOINTER_TO_INT (data));
break;
case GCONF_VALUE_LIST:
for (node = (GList *) data; node; node = node->next)
{
value_i = gconf_value_new (list_type);
if (list_type == GCONF_VALUE_STRING)
gconf_value_set_string (value_i, (const gchar *) node->data);
else if (list_type == GCONF_VALUE_INT)
gconf_value_set_int (value_i, GPOINTER_TO_INT (node->data));
else
g_assert_not_reached ();
slist = g_slist_append (slist, value_i);
}
gconf_value_set_list_nocopy (value, slist);
break;
default:
g_assert_not_reached ();
break;
}
gconf_client_set (client, key, value, &error);
if (error)
handle_g_error (&error, "%s: error setting %s", G_STRFUNC, key);
exit:
gconf_value_free (value);
g_object_unref (client);
}
guint
connect_gconf_notify (const gchar * key, GConfClientNotifyFunc cb, gpointer user_data)
{
GConfClient *client;
guint conn_id;
GError *error = NULL;
client = gconf_client_get_default ();
conn_id = gconf_client_notify_add (client, key, cb, user_data, NULL, &error);
if (error)
handle_g_error (&error, "%s: error adding notify for (%s)", G_STRFUNC, key);
g_object_unref (client);
return conn_id;
}
void
handle_g_error (GError ** error, const gchar * msg_format, ...)
{
gchar *msg;
va_list args;
va_start (args, msg_format);
msg = g_strdup_vprintf (msg_format, args);
va_end (args);
if (*error)
{
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_WARNING,
"\nGError raised: [%s]\nuser_message: [%s]\n", (*error)->message, msg);
g_error_free (*error);
*error = NULL;
}
else
g_log (G_LOG_DOMAIN, G_LOG_LEVEL_WARNING, "\nerror raised: [%s]\n", msg);
g_free (msg);
}
GtkWidget *
get_main_menu_section_header (const gchar * markup)
{
GtkWidget *label;
gchar *text;
text = g_strdup_printf ("<span size=\"large\">%s</span>", markup);
label = gtk_label_new (text);
gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
gtk_widget_set_name (label, "gnome-main-menu-section-header");
g_signal_connect (G_OBJECT (label), "style-set", G_CALLBACK (section_header_style_set),
NULL);
g_free (text);
return label;
}
static void
section_header_style_set (GtkWidget * widget, GtkStyle * prev_style, gpointer user_data)
{
if (prev_style
&& widget->style->fg[GTK_STATE_SELECTED].green ==
prev_style->fg[GTK_STATE_SELECTED].green)
return;
gtk_widget_modify_fg (widget, GTK_STATE_NORMAL, &widget->style->bg[GTK_STATE_SELECTED]);
}