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/* GTK - The GIMP Toolkit
* gtkprintbackend.h: Abstract printer backend interfaces
* Copyright (C) 2006, Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <string.h>
#include <glib.h>
#include <gmodule.h>
#include "gtkprinteroptionset.h"
#include "gtkalias.h"
/*****************************************
* GtkPrinterOptionSet *
*****************************************/
enum {
CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
/* ugly side-effect of aliasing */
#undef gtk_printer_option_set
G_DEFINE_TYPE (GtkPrinterOptionSet, gtk_printer_option_set, G_TYPE_OBJECT)
static void
gtk_printer_option_set_finalize (GObject *object)
{
GtkPrinterOptionSet *set = GTK_PRINTER_OPTION_SET (object);
g_hash_table_destroy (set->hash);
g_ptr_array_foreach (set->array, (GFunc)g_object_unref, NULL);
g_ptr_array_free (set->array, TRUE);
G_OBJECT_CLASS (gtk_printer_option_set_parent_class)->finalize (object);
}
static void
gtk_printer_option_set_init (GtkPrinterOptionSet *set)
{
set->array = g_ptr_array_new ();
set->hash = g_hash_table_new (g_str_hash, g_str_equal);
}
static void
gtk_printer_option_set_class_init (GtkPrinterOptionSetClass *class)
{
GObjectClass *gobject_class = (GObjectClass *)class;
gobject_class->finalize = gtk_printer_option_set_finalize;
signals[CHANGED] =
g_signal_new ("changed",
G_TYPE_FROM_CLASS (gobject_class),
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkPrinterOptionSetClass, changed),
NULL, NULL,
g_cclosure_marshal_VOID__VOID,
G_TYPE_NONE, 0);
}
static void
emit_changed (GtkPrinterOptionSet *set)
{
g_signal_emit (set, signals[CHANGED], 0);
}
GtkPrinterOptionSet *
gtk_printer_option_set_new (void)
{
return g_object_new (GTK_TYPE_PRINTER_OPTION_SET, NULL);
}
void
gtk_printer_option_set_remove (GtkPrinterOptionSet *set,
GtkPrinterOption *option)
{
int i;
for (i = 0; i < set->array->len; i++)
{
if (g_ptr_array_index (set->array, i) == option)
{
g_ptr_array_remove_index (set->array, i);
g_hash_table_remove (set->hash, option->name);
g_signal_handlers_disconnect_by_func (option, emit_changed, set);
g_object_unref (option);
break;
}
}
}
void
gtk_printer_option_set_add (GtkPrinterOptionSet *set,
GtkPrinterOption *option)
{
g_object_ref (option);
if (gtk_printer_option_set_lookup (set, option->name))
gtk_printer_option_set_remove (set, option);
g_ptr_array_add (set->array, option);
g_hash_table_insert (set->hash, option->name, option);
g_signal_connect_object (option, "changed", G_CALLBACK (emit_changed), set, G_CONNECT_SWAPPED);
}
GtkPrinterOption *
gtk_printer_option_set_lookup (GtkPrinterOptionSet *set,
const char *name)
{
gpointer ptr;
ptr = g_hash_table_lookup (set->hash, name);
return GTK_PRINTER_OPTION (ptr);
}
void
gtk_printer_option_set_clear_conflicts (GtkPrinterOptionSet *set)
{
gtk_printer_option_set_foreach (set,
(GtkPrinterOptionSetFunc)gtk_printer_option_clear_has_conflict,
NULL);
}
static int
safe_strcmp (const char *a, const char *b)
{
if (a == NULL)
a = "";
if (b == NULL)
b = "";
return strcmp (a, b);
}
GList *
gtk_printer_option_set_get_groups (GtkPrinterOptionSet *set)
{
GtkPrinterOption *option;
GList *list = NULL;
int i;
for (i = 0; i < set->array->len; i++)
{
option = g_ptr_array_index (set->array, i);
if (g_list_find_custom (list, option->group, (GCompareFunc)safe_strcmp) == NULL)
list = g_list_prepend (list, g_strdup (option->group));
}
return g_list_reverse (list);
}
void
gtk_printer_option_set_foreach_in_group (GtkPrinterOptionSet *set,
const char *group,
GtkPrinterOptionSetFunc func,
gpointer user_data)
{
GtkPrinterOption *option;
int i;
for (i = 0; i < set->array->len; i++)
{
option = g_ptr_array_index (set->array, i);
if (group == NULL ||
(option->group != NULL && strcmp (group, option->group) == 0))
func (option, user_data);
}
}
void
gtk_printer_option_set_foreach (GtkPrinterOptionSet *set,
GtkPrinterOptionSetFunc func,
gpointer user_data)
{
gtk_printer_option_set_foreach_in_group (set, NULL, func, user_data);
}
#define __GTK_PRINTER_OPTION_SET_C__
#include "gtkaliasdef.c"
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