/**
* gimp_unit_menu_get_pixel_digits:
* @menu: a #GimpUnitMenu
*
* Retrieve the number of digits for a pixel size as set by
* gimp_unit_menu_set_pixel_digits().
*
* Return value: the configured number of digits for a pixel size
**/
gint
gimp_unit_menu_get_pixel_digits (GimpUnitMenu *menu)
{
g_return_val_if_fail (GIMP_IS_UNIT_MENU (menu), 0);
return menu->pixel_digits;
}
/**
* gimp_unit_menu_get_unit:
* @menu: The unit menu you want to know the unit of.
*
* Returns the #GimpUnit the user has selected from the #GimpUnitMenu.
*
* Returns: The unit the user has selected.
**/
GimpUnit
gimp_unit_menu_get_unit (GimpUnitMenu *menu)
{
g_return_val_if_fail (GIMP_IS_UNIT_MENU (menu), GIMP_UNIT_INCH);
return menu->unit;
}
/**
* gimp_unit_menu_set_pixel_digits:
* @menu: a #GimpUnitMenu
* @digits: the number of digits to display for a pixel size
*
* A GimpUnitMenu can be setup to control the number of digits shown
* by attached spinbuttons. Please refer to the documentation of
* gimp_unit_menu_update() to see how this is done.
*
* This function allows to specify the number of digits shown for a
* size in pixels. Usually this is 0 (only full pixels). If you want
* to allow the user to specify sub-pixel sizes using the attached
* spinbuttons, specify the number of digits after the decimal point
* here. You should do this after attaching your spinbuttons.
**/
void
gimp_unit_menu_set_pixel_digits (GimpUnitMenu *menu,
gint digits)
{
GimpUnit unit;
g_return_if_fail (GIMP_IS_UNIT_MENU (menu));
menu->pixel_digits = digits;
gimp_unit_menu_update (GTK_WIDGET (menu), &unit);
}
static void
gimp_unit_menu_destroy (GtkObject *object)
{
GimpUnitMenu *gum;
g_return_if_fail (object != NULL);
g_return_if_fail (GIMP_IS_UNIT_MENU (object));
gum = GIMP_UNIT_MENU (object);
if (gum->format)
g_free (gum->format);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
/**
* gimp_unit_menu_set_unit:
* @menu: The unit menu you want to set the unit for.
* @unit: The new unit.
*
* Sets a new #GimpUnit for the specified #GimpUnitMenu.
**/
void
gimp_unit_menu_set_unit (GimpUnitMenu *menu,
GimpUnit unit)
{
GtkWidget *menuitem = NULL;
GList *items;
gint user_unit;
g_return_if_fail (GIMP_IS_UNIT_MENU (menu));
g_return_if_fail (((unit >= GIMP_UNIT_PIXEL) &&
((unit > GIMP_UNIT_PIXEL) || menu->show_pixels) &&
(unit < gimp_unit_get_number_of_units ())) ||
((unit == GIMP_UNIT_PERCENT) && menu->show_percent));
if (unit == menu->unit)
return;
items = GTK_MENU_SHELL (GTK_OPTION_MENU (menu)->menu)->children;
user_unit = (GIMP_UNIT_END +
(((menu->show_pixels || menu->show_percent) ? 2 : 0) +
((menu->show_pixels && menu->show_percent) ? 1 : 0)));
if ((unit >= GIMP_UNIT_END) && (unit != GIMP_UNIT_PERCENT))
{
gchar *string;
if ((g_list_length (items) - 3) >= user_unit)
{
gtk_widget_destroy (GTK_WIDGET (g_list_nth_data (items,
user_unit - 1)));
gtk_widget_destroy (GTK_WIDGET (g_list_nth_data (items,
user_unit - 1)));
}
menuitem = gtk_menu_item_new ();
gtk_menu_shell_append (GTK_MENU_SHELL (GTK_OPTION_MENU (menu)->menu),
menuitem);
gtk_widget_set_sensitive (menuitem, FALSE);
gtk_menu_reorder_child (GTK_MENU (GTK_OPTION_MENU (menu)->menu),
menuitem, user_unit - 1);
gtk_widget_show (menuitem);
string = gimp_unit_format_string (menu->format, unit);
menuitem = gtk_menu_item_new_with_label (string);
g_free (string);
gtk_menu_shell_append (GTK_MENU_SHELL (GTK_OPTION_MENU (menu)->menu),
menuitem);
g_object_set_data (G_OBJECT (menuitem), "gimp_unit_menu",
GINT_TO_POINTER (unit));
gtk_menu_reorder_child (GTK_MENU (GTK_OPTION_MENU (menu)->menu),
menuitem, user_unit);
gtk_widget_show (menuitem);
g_signal_connect (menuitem, "activate",
G_CALLBACK (gimp_unit_menu_callback),
menu);
}
menu->unit = unit;
gtk_option_menu_set_history (GTK_OPTION_MENU (menu),
(unit == GIMP_UNIT_PIXEL) ? 0 :
((unit == GIMP_UNIT_PERCENT) ?
(menu->show_pixels ? 1 : 0) :
(((menu->show_pixels ||
menu->show_percent) ? 2 : 0) +
((menu->show_pixels &&
menu->show_percent) ? 1 : 0) +
((unit < GIMP_UNIT_END) ?
(unit - 1) : GIMP_UNIT_END))));
g_signal_emit (menu, gimp_unit_menu_signals[UNIT_CHANGED], 0);
}
