/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2000-2002 Ximian Inc.
*
* Authors: Not Zed <notzed@ximian.com>
* 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 <gtk/gtk.h>
#include <libgnome/gnome-i18n.h>
#include "filter-filter.h"
#include "filter-context.h"
#define d(x)
static int validate(FilterRule *fr);
static int filter_eq(FilterRule *fr, FilterRule *cm);
static xmlNodePtr xml_encode (FilterRule *fr);
static int xml_decode (FilterRule *fr, xmlNodePtr, RuleContext *rc);
static void rule_copy (FilterRule *dest, FilterRule *src);
/*static void build_code(FilterRule *, GString *out);*/
static GtkWidget *get_widget (FilterRule *fr, RuleContext *rc);
static void filter_filter_class_init (FilterFilterClass *klass);
static void filter_filter_init (FilterFilter *ff);
static void filter_filter_finalise (GObject *obj);
static FilterRuleClass *parent_class = NULL;
GType
filter_filter_get_type (void)
{
static GType type = 0;
if (!type) {
static const GTypeInfo info = {
sizeof (FilterFilterClass),
NULL, /* base_class_init */
NULL, /* base_class_finalize */
(GClassInitFunc) filter_filter_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (FilterFilter),
0, /* n_preallocs */
(GInstanceInitFunc) filter_filter_init,
};
type = g_type_register_static (FILTER_TYPE_RULE, "FilterFilter", &info, 0);
}
return type;
}
static void
filter_filter_class_init (FilterFilterClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
FilterRuleClass *fr_class = (FilterRuleClass *) klass;
parent_class = g_type_class_ref (FILTER_TYPE_RULE);
object_class->finalize = filter_filter_finalise;
/* override methods */
fr_class->validate = validate;
fr_class->eq = filter_eq;
fr_class->xml_encode = xml_encode;
fr_class->xml_decode = xml_decode;
/*fr_class->build_code = build_code;*/
fr_class->copy = rule_copy;
fr_class->get_widget = get_widget;
}
static void
filter_filter_init (FilterFilter *ff)
{
;
}
static void
unref_list (GList *l)
{
while (l) {
g_object_unref (l->data);
l = l->next;
}
}
static void
filter_filter_finalise (GObject *obj)
{
FilterFilter *ff = (FilterFilter *) obj;
unref_list (ff->actions);
g_list_free (ff->actions);
G_OBJECT_CLASS (parent_class)->finalize (obj);
}
/**
* filter_filter_new:
*
* Create a new FilterFilter object.
*
* Return value: A new #FilterFilter object.
**/
FilterFilter *
filter_filter_new (void)
{
return (FilterFilter *) g_object_new (FILTER_TYPE_FILTER, NULL, NULL);
}
void
filter_filter_add_action (FilterFilter *fr, FilterPart *fp)
{
fr->actions = g_list_append (fr->actions, fp);
filter_rule_emit_changed ((FilterRule *) fr);
}
void
filter_filter_remove_action (FilterFilter *fr, FilterPart *fp)
{
fr->actions = g_list_remove (fr->actions, fp);
filter_rule_emit_changed ((FilterRule *) fr);
}
void
filter_filter_replace_action (FilterFilter *fr, FilterPart *fp, FilterPart *new)
{
GList *l;
l = g_list_find (fr->actions, fp);
if (l) {
l->data = new;
} else {
fr->actions = g_list_append (fr->actions, new);
}
filter_rule_emit_changed ((FilterRule *) fr);
}
void
filter_filter_build_action (FilterFilter *fr, GString *out)
{
g_string_append (out, "(begin\n");
filter_part_build_code_list (fr->actions, out);
g_string_append (out, ")\n");
}
static int
validate (FilterRule *fr)
{
FilterFilter *ff = (FilterFilter *) fr;
GList *parts;
int valid;
valid = FILTER_RULE_CLASS (parent_class)->validate (fr);
/* validate rule actions */
parts = ff->actions;
while (parts && valid) {
valid = filter_part_validate ((FilterPart *) parts->data);
parts = parts->next;
}
return valid;
}
static int
list_eq (GList *al, GList *bl)
{
int truth = TRUE;
while (truth && al && bl) {
FilterPart *a = al->data, *b = bl->data;
truth = filter_part_eq (a, b);
al = al->next;
bl = bl->next;
}
return truth && al == NULL && bl == NULL;
}
static int
filter_eq (FilterRule *fr, FilterRule *cm)
{
return FILTER_RULE_CLASS (parent_class)->eq (fr, cm)
&& list_eq (((FilterFilter *) fr)->actions, ((FilterFilter *) cm)->actions);
}
static xmlNodePtr
xml_encode (FilterRule *fr)
{
FilterFilter *ff = (FilterFilter *) fr;
xmlNodePtr node, set, work;
GList *l;
node = FILTER_RULE_CLASS (parent_class)->xml_encode (fr);
g_assert (node != NULL);
set = xmlNewNode (NULL, "actionset");
xmlAddChild (node, set);
l = ff->actions;
while (l) {
work = filter_part_xml_encode ((FilterPart *) l->data);
xmlAddChild (set, work);
l = l->next;
}
return node;
}
static void
load_set (xmlNodePtr node, FilterFilter *ff, RuleContext *rc)
{
xmlNodePtr work;
char *rulename;
FilterPart *part;
work = node->childs;
while (work) {
if (!strcmp (work->name, "part")) {
rulename = xmlGetProp (work, "name");
part = filter_context_find_action ((FilterContext *) rc, rulename);
if (part) {
part = filter_part_clone (part);
filter_part_xml_decode (part, work);
filter_filter_add_action (ff, part);
} else {
g_warning ("cannot find rule part '%s'\n", rulename);
}
xmlFree (rulename);
} else {
g_warning ("Unknown xml node in part: %s", work->name);
}
work = work->next;
}
}
static int
xml_decode (FilterRule *fr, xmlNodePtr node, RuleContext *rc)
{
FilterFilter *ff = (FilterFilter *) fr;
xmlNodePtr work;
int result;
result = FILTER_RULE_CLASS (parent_class)->xml_decode (fr, node, rc);
if (result != 0)
return result;
work = node->childs;
while (work) {
if (!strcmp (work->name, "actionset")) {
load_set (work, ff, rc);
}
work = work->next;
}
return 0;
}
static void
rule_copy (FilterRule *dest, FilterRule *src)
{
FilterFilter *fdest, *fsrc;
GList *node;
fdest = (FilterFilter *) dest;
fsrc = (FilterFilter *) src;
if (fdest->actions) {
g_list_foreach (fdest->actions, (GFunc) gtk_object_unref, NULL);
g_list_free (fdest->actions);
fdest->actions = NULL;
}
node = fsrc->actions;
while (node) {
FilterPart *part = node->data;
g_object_ref (part);
fdest->actions = g_list_append (fdest->actions, part);
node = node->next;
}
FILTER_RULE_CLASS (parent_class)->copy (dest, src);
}
/*static void build_code(FilterRule *fr, GString *out)
{
return FILTER_RULE_CLASS (parent_class)->build_code (fr, out);
}*/
struct _part_data {
FilterRule *fr;
FilterContext *f;
FilterPart *part;
GtkWidget *partwidget, *container;
};
static void
option_activate (GtkMenuItem *item, struct _part_data *data)
{
FilterPart *part = g_object_get_data ((GObject *) item, "part");
FilterPart *newpart;
/* dont update if we haven't changed */
if (!strcmp (part->title, data->part->title))
return;
/* here we do a widget shuffle, throw away the old widget/rulepart,
and create another */
if (data->partwidget)
gtk_container_remove (GTK_CONTAINER (data->container), data->partwidget);
newpart = filter_part_clone (part);
filter_part_copy_values (newpart, data->part);
filter_filter_replace_action ((FilterFilter *) data->fr, data->part, newpart);
g_object_unref (data->part);
data->part = newpart;
data->partwidget = filter_part_get_widget (newpart);
if (data->partwidget)
gtk_box_pack_start (GTK_BOX (data->container), data->partwidget, FALSE, FALSE, 0);
g_object_set_data ((GObject *) data->container, "part", newpart);
}
static GtkWidget *
get_rule_part_widget (FilterContext *f, FilterPart *newpart, FilterRule *fr)
{
FilterPart *part = NULL;
GtkWidget *menu;
GtkWidget *item;
GtkWidget *omenu;
GtkWidget *hbox;
GtkWidget *p;
int index = 0, current = 0;
struct _part_data *data;
data = g_malloc0 (sizeof (*data));
data->fr = fr;
data->f = f;
data->part = newpart;
hbox = gtk_hbox_new (FALSE, 0);
p = filter_part_get_widget (newpart);
data->partwidget = p;
data->container = hbox;
menu = gtk_menu_new ();
while ((part = filter_context_next_action (f, part))) {
item = gtk_menu_item_new_with_label (_(part->title));
g_object_set_data ((GObject *) item, "part", part);
g_signal_connect (item, "activate", GTK_SIGNAL_FUNC (option_activate), data);
gtk_menu_append (GTK_MENU (menu), item);
gtk_widget_show (item);
if (!strcmp (newpart->title, part->title))
current = index;
index++;
}
omenu = gtk_option_menu_new ();
gtk_option_menu_set_menu (GTK_OPTION_MENU (omenu), menu);
gtk_option_menu_set_history (GTK_OPTION_MENU (omenu), current);
gtk_widget_show (omenu);
gtk_box_pack_start (GTK_BOX (hbox), omenu, FALSE, FALSE, 0);
if (p)
gtk_box_pack_start (GTK_BOX (hbox), p, FALSE, FALSE, 0);
gtk_widget_show_all (hbox);
return hbox;
}
struct _rule_data {
FilterRule *fr;
FilterContext *f;
GtkWidget *parts;
};
static void
less_parts (GtkWidget *button, struct _rule_data *data)
{
FilterPart *part;
GtkWidget *rule;
GList *l;
l = ((FilterFilter *) data->fr)->actions;
if (g_list_length (l) < 2)
return;
rule = g_object_get_data ((GObject *) button, "rule");
part = g_object_get_data ((GObject *) rule, "part");
/* remove the part from the list */
filter_filter_remove_action ((FilterFilter *) data->fr, part);
g_object_unref (part);
/* and from the display */
gtk_container_remove (GTK_CONTAINER (data->parts), rule);
gtk_container_remove (GTK_CONTAINER (data->parts), button);
}
static void
attach_rule (GtkWidget *rule, struct _rule_data *data, FilterPart *part, int row)
{
GtkWidget *remove;
gtk_table_attach (GTK_TABLE (data->parts), rule, 0, 1, row, row + 1,
GTK_EXPAND | GTK_FILL, 0, 0, 0);
remove = gtk_button_new_from_stock (GTK_STOCK_REMOVE);
g_object_set_data ((GObject *) remove, "rule", rule);
g_object_set_data ((GObject *) rule, "part", part);
/*gtk_button_set_relief (GTK_BUTTON (remove), GTK_RELIEF_NONE);*/
g_signal_connect (remove, "clicked", GTK_SIGNAL_FUNC (less_parts), data);
gtk_table_attach (GTK_TABLE (data->parts), remove, 1, 2, row, row + 1,
0, 0, 0, 0);
gtk_widget_show (remove);
}
static void
more_parts (GtkWidget *button, struct _rule_data *data)
{
FilterPart *new;
/* create a new rule entry, use the first type of rule */
new = filter_context_next_action ((FilterContext *) data->f, NULL);
if (new) {
GtkWidget *w;
guint16 rows;
new = filter_part_clone (new);
filter_filter_add_action ((FilterFilter *) data->fr, new);
w = get_rule_part_widget (data->f, new, data->fr);
rows = GTK_TABLE (data->parts)->nrows;
gtk_table_resize (GTK_TABLE (data->parts), rows + 1, 2);
attach_rule (w, data, new, rows);
}
}
static GtkWidget *
get_widget (FilterRule *fr, RuleContext *rc)
{
GtkWidget *widget, *hbox, *add, *frame;
GtkWidget *parts, *inframe, *w;
GtkWidget *scrolledwindow;
GtkObject *hadj, *vadj;
GList *l;
FilterPart *part;
struct _rule_data *data;
FilterFilter *ff = (FilterFilter *)fr;
int rows, i = 0;
widget = FILTER_RULE_CLASS (parent_class)->get_widget (fr, rc);
/* and now for the action area */
frame = gtk_frame_new (_("Then"));
inframe = gtk_vbox_new (FALSE, 3);
gtk_container_add (GTK_CONTAINER (frame), inframe);
rows = g_list_length (ff->actions);
parts = gtk_table_new (rows, 2, FALSE);
data = g_malloc0 (sizeof (*data));
data->f = (FilterContext *) rc;
data->fr = fr;
data->parts = parts;
hbox = gtk_hbox_new (FALSE, 3);
add = gtk_button_new_from_stock (GTK_STOCK_ADD);
/* gtk_button_set_relief (GTK_BUTTON (add), GTK_RELIEF_NONE); */
g_signal_connect (add, "clicked", GTK_SIGNAL_FUNC (more_parts), data);
gtk_box_pack_start (GTK_BOX (hbox), add, FALSE, FALSE, 3);
gtk_box_pack_start (GTK_BOX (inframe), hbox, FALSE, FALSE, 3);
l = ff->actions;
while (l) {
part = l->data;
d(printf ("adding action %s\n", part->title));
w = get_rule_part_widget ((FilterContext *) rc, part, fr);
attach_rule (w, data, part, i++);
l = l->next;
}
hadj = gtk_adjustment_new (0.0, 0.0, 1.0, 1.0 ,1.0, 1.0);
vadj = gtk_adjustment_new (0.0, 0.0, 1.0, 1.0 ,1.0, 1.0);
scrolledwindow = gtk_scrolled_window_new (GTK_ADJUSTMENT (hadj), GTK_ADJUSTMENT (vadj));
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolledwindow),
GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (scrolledwindow), parts);
gtk_box_pack_start (GTK_BOX (inframe), scrolledwindow, TRUE, TRUE, 3);
/*gtk_box_pack_start (GTK_BOX (inframe), parts, FALSE, FALSE, 3);*/
gtk_widget_show_all (frame);
gtk_box_pack_start (GTK_BOX (widget), frame, TRUE, TRUE, 3);
return widget;
}