/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2000-2002 Ximian Inc.
*
* Authors: Not Zed <notzed@lostzed.mmc.com.au>
* Jeffrey Stedfast <fejj@ximian.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <stdlib.h>
#include "filter-element.h"
struct _element_type {
char *name;
FilterElementFunc create;
void *data;
};
static gboolean validate (FilterElement *fe);
static int element_eq(FilterElement *fe, FilterElement *cm);
static void xml_create(FilterElement *fe, xmlNodePtr node);
static FilterElement *clone(FilterElement *fe);
static void copy_value(FilterElement *de, FilterElement *se);
static void filter_element_class_init (FilterElementClass *klass);
static void filter_element_init (FilterElement *fe);
static void filter_element_finalise (GObject *obj);
static GObjectClass *parent_class = NULL;
GType
filter_element_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (FilterElementClass),
NULL, /* base_class_init */
NULL, /* base_class_finalize */
(GClassInitFunc) filter_element_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (FilterElement),
0, /* n_preallocs */
(GInstanceInitFunc) filter_element_init,
};
type = g_type_register_static (G_TYPE_OBJECT, "FilterElement", &info, 0);
}
return type;
}
static void
filter_element_class_init (FilterElementClass *klass)
{
parent_class = g_type_class_ref (G_TYPE_OBJECT);
((GObjectClass *)klass)->finalize = filter_element_finalise;
/* override methods */
klass->validate = validate;
klass->eq = element_eq;
klass->xml_create = xml_create;
klass->clone = clone;
klass->copy_value = copy_value;
}
static void
filter_element_init (FilterElement *fe)
{
;
}
static void
filter_element_finalise (GObject *obj)
{
FilterElement *o = (FilterElement *)obj;
xmlFree (o->name);
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
/**
* filter_element_new:
*
* Create a new FilterElement object.
*
* Return value: A new #FilterElement object.
**/
FilterElement *
filter_element_new (void)
{
return (FilterElement *) g_object_new (FILTER_TYPE_ELEMENT, NULL, NULL);
}
gboolean
filter_element_validate (FilterElement *fe)
{
return FILTER_ELEMENT_GET_CLASS (fe)->validate (fe);
}
int
filter_element_eq (FilterElement *fe, FilterElement *cm)
{
FilterElementClass *klass;
klass = FILTER_ELEMENT_GET_CLASS (fe);
return (klass == FILTER_ELEMENT_GET_CLASS (cm)) && klass->eq (fe, cm);
}
/**
* filter_element_xml_create:
* @fe: filter element
* @node: xml node
*
* Create a new filter element based on an xml definition of
* that element.
**/
void
filter_element_xml_create (FilterElement *fe, xmlNodePtr node)
{
FILTER_ELEMENT_GET_CLASS (fe)->xml_create (fe, node);
}
/**
* filter_element_xml_encode:
* @fe: filter element
*
* Encode the values of a filter element into xml format.
*
* Return value:
**/
xmlNodePtr
filter_element_xml_encode (FilterElement *fe)
{
return FILTER_ELEMENT_GET_CLASS (fe)->xml_encode (fe);
}
/**
* filter_element_xml_decode:
* @fe: filter element
* @node: xml node
*
* Decode the values of a fitler element from xml format.
*
* Return value:
**/
int
filter_element_xml_decode (FilterElement *fe, xmlNodePtr node)
{
return FILTER_ELEMENT_GET_CLASS (fe)->xml_decode (fe, node);
}
/**
* filter_element_clone:
* @fe: filter element
*
* Clones the FilterElement @fe.
*
* Return value:
**/
FilterElement *
filter_element_clone (FilterElement *fe)
{
return FILTER_ELEMENT_GET_CLASS (fe)->clone (fe);
}
/**
* filter_element_get_widget:
* @fe: filter element
* @node: xml node
*
* Create a widget to represent this element.
*
* Return value:
**/
GtkWidget *
filter_element_get_widget (FilterElement *fe)
{
return FILTER_ELEMENT_GET_CLASS (fe)->get_widget (fe);
}
/**
* filter_element_build_code:
* @fe: filter element
* @out: output buffer
* @ff:
*
* Add the code representing this element to the output string @out.
**/
void
filter_element_build_code (FilterElement *fe, GString *out, struct _FilterPart *ff)
{
FILTER_ELEMENT_GET_CLASS (fe)->build_code (fe, out, ff);
}
/**
* filter_element_format_sexp:
* @fe: filter element
* @out: output buffer
*
* Format the value(s) of this element in a method suitable for the context of
* sexp where it is used. Usually as space separated, double-quoted strings.
**/
void
filter_element_format_sexp (FilterElement *fe, GString *out)
{
FILTER_ELEMENT_GET_CLASS (fe)->format_sexp (fe, out);
}
void
filter_element_set_data (FilterElement *fe, gpointer data)
{
fe->data = data;
}
/* default implementations */
static gboolean
validate (FilterElement *fe)
{
return TRUE;
}
static int
element_eq (FilterElement *fe, FilterElement *cm)
{
return ((fe->name && cm->name && strcmp (fe->name, cm->name) == 0)
|| (fe->name == NULL && cm->name == NULL));
}
static void
xml_create (FilterElement *fe, xmlNodePtr node)
{
fe->name = (char *)xmlGetProp (node, (const unsigned char *)"name");
}
static FilterElement *
clone (FilterElement *fe)
{
xmlNodePtr node;
FilterElement *new;
new = (FilterElement *) g_object_new (G_OBJECT_TYPE (fe), NULL, NULL);
node = filter_element_xml_encode (fe);
filter_element_xml_decode (new, node);
xmlFreeNodeList (node);
return new;
}
/* This is somewhat hackish, implement all the base cases in here */
#include "filter-input.h"
#include "filter-option.h"
#include "filter-code.h"
#include "filter-colour.h"
#include "filter-datespec.h"
#include "filter-int.h"
#include "filter-file.h"
#include "filter-label.h"
static void
copy_value(FilterElement *de, FilterElement *se)
{
if (IS_FILTER_INPUT(se)) {
if (IS_FILTER_INPUT(de)) {
if (((FilterInput *)se)->values)
filter_input_set_value((FilterInput*)de, ((FilterInput *)se)->values->data);
} else if (IS_FILTER_INT(de)) {
((FilterInt *)de)->val = atoi((char *) ((FilterInput *)se)->values->data);
}
} else if (IS_FILTER_COLOUR(se)) {
if (IS_FILTER_COLOUR(de)) {
FilterColour *s = (FilterColour *)se;
FilterColour *d = (FilterColour *)de;
d->color = s->color;
}
} else if (IS_FILTER_DATESPEC(se)) {
if (IS_FILTER_DATESPEC(de)) {
FilterDatespec *s = (FilterDatespec *)se, *d = (FilterDatespec *)de;
d->type = s->type;
d->value = s->value;
}
} else if (IS_FILTER_INT(se)) {
if (IS_FILTER_INT(de)) {
FilterInt *s = (FilterInt *)se, *d = (FilterInt *)de;
d->val = s->val;
} else if (IS_FILTER_INPUT(de)) {
FilterInt *s = (FilterInt *)se;
FilterInput *d = (FilterInput *)de;
char *v;
v = g_strdup_printf("%d", s->val);
filter_input_set_value(d, v);
g_free(v);
}
} else if (IS_FILTER_OPTION(se)) {
if (IS_FILTER_OPTION(de)) {
FilterOption *s = (FilterOption *)se, *d = (FilterOption *)de;
if (s->current)
filter_option_set_current(d, s->current->value);
}
}
}
/* only copies the value, not the name/type */
void
filter_element_copy_value (FilterElement *de, FilterElement *se)
{
FILTER_ELEMENT_GET_CLASS (de)->copy_value(de, se);
}
