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/*
* Copyright (C) 2000 Helix Code Inc.
*
* Authors: Michael Zucchi <notzed@helixcode.com>
*
* Abstract filter argument class.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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 Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "filter-arg.h"
static void filter_arg_class_init (FilterArgClass *class);
static void filter_arg_init (FilterArg *gspaper);
static GtkObjectClass *parent_class;
enum {
CHANGED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
guint
filter_arg_get_type (void)
{
static guint type = 0;
if (!type) {
GtkTypeInfo type_info = {
"FilterArg",
sizeof (FilterArg),
sizeof (FilterArgClass),
(GtkClassInitFunc) filter_arg_class_init,
(GtkObjectInitFunc) filter_arg_init,
(GtkArgSetFunc) NULL,
(GtkArgGetFunc) NULL
};
type = gtk_type_unique (gtk_object_get_type (), &type_info);
}
return type;
}
static void
write_html_nothing(FilterArg *arg, GtkHTML *html, GtkHTMLStreamHandle *stream)
{
/* empty */
}
static void
write_text_nothing(FilterArg *arg, GString *string)
{
/* empty */
}
static void
edit_values_nothing(FilterArg *arg)
{
/* empty */
}
static void
free_value_nothing(FilterArg *arg, void *v)
{
/* empty */
}
static gint
compare_pointers(gpointer a, gpointer b)
{
return a==b;
}
static void
filter_arg_class_init (FilterArgClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *) class;
parent_class = gtk_type_class (gtk_object_get_type ());
class->write_html = write_html_nothing;
class->write_text = write_text_nothing;
class->edit_values = edit_values_nothing;
class->free_value = free_value_nothing;
signals[CHANGED] =
gtk_signal_new ("changed",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (FilterArgClass, changed),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}
static void
filter_arg_init (FilterArg *arg)
{
arg->values = NULL;
}
/**
* filter_arg_new:
*
* Create a new FilterArg widget.
*
* Return value: A new FilterArg widget.
**/
FilterArg *
filter_arg_new (char *name)
{
FilterArg *a = FILTER_ARG ( gtk_type_new (filter_arg_get_type ()));
if (name)
a->name = g_strdup(name);
return a;
}
void
filter_arg_add(FilterArg *arg, void *v)
{
arg->values = g_list_append(arg->values, v);
gtk_signal_emit(GTK_OBJECT(arg), signals[CHANGED]);
}
void
filter_arg_remove(FilterArg *arg, void *v)
{
arg->values = g_list_remove(arg->values, v);
((FilterArgClass *)(arg->object.klass))->free_value(arg, v);
gtk_signal_emit(GTK_OBJECT(arg), signals[CHANGED]);
}
void
filter_arg_write_html(FilterArg *arg, GtkHTML *html, GtkHTMLStreamHandle *stream)
{
((FilterArgClass *)(arg->object.klass))->write_html(arg, html, stream);
}
void
filter_arg_write_text(FilterArg *arg, GString *string)
{
((FilterArgClass *)(arg->object.klass))->write_text(arg, string);
}
void
filter_arg_edit_values(FilterArg *arg)
{
((FilterArgClass *)(arg->object.klass))->edit_values(arg);
}
xmlNodePtr
filter_arg_values_get_xml(FilterArg *arg)
{
return ((FilterArgClass *)(arg->object.klass))->values_get_xml(arg);
}
void
filter_arg_values_add_xml(FilterArg *arg, xmlNodePtr node)
{
((FilterArgClass *)(arg->object.klass))->values_add_xml(arg, node);
}
/* returns the number of args in the arg list */
int
filter_arg_get_count(FilterArg *arg)
{
int count=0;
GList *l;
for (l = arg->values;l;l=g_list_next(l))
count++;
return count;
}
void *
filter_arg_get_value(FilterArg *arg, int index)
{
int count=0;
GList *l;
for (l = arg->values;l && count<index;l=g_list_next(l))
count++;
if (l)
return l->data;
return NULL;
}
char *
filter_arg_get_value_as_string(FilterArg *arg, int index)
{
int count=0;
GList *l;
void *data;
data = filter_arg_get_value(arg, index);
if (data) {
return ((FilterArgClass *)(arg->object.klass))->get_value_as_string(arg, data);
} else {
return "";
}
}
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