/*
* Copyright (C) 2000 Helix Code Inc.
*
* Authors: Not Zed <notzed@lostzed.mmc.com.au>
* Jeffrey Stedfast <fejj@helixcode.com>
*
* 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 <config.h>
#include <glib.h>
#include <gtk/gtkframe.h>
#include <libgnome/gnome-defs.h>
#include <libgnome/gnome-i18n.h>
#include <libgnomeui/gnome-stock.h>
#include <glade/glade.h>
#include <gal/widgets/e-unicode.h>
#include "rule-editor.h"
#include "rule-context.h"
#include "filter-rule.h"
#define d(x)
static void set_source(RuleEditor *re, const char *source);
static void set_sensitive(RuleEditor *re);
static FilterRule *create_rule(RuleEditor *re);
static void rule_editor_class_init(RuleEditorClass *class);
static void rule_editor_init(RuleEditor *gspaper);
static void rule_editor_finalise(GtkObject *obj);
#define _PRIVATE(x)(((RuleEditor *)(x))->priv)
enum {
BUTTON_ADD,
BUTTON_EDIT,
BUTTON_DELETE,
BUTTON_UP,
BUTTON_DOWN,
BUTTON_LAST
};
struct _RuleEditorPrivate {
GtkButton *buttons[BUTTON_LAST];
};
static GnomeDialogClass *parent_class;
enum {
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
guint
rule_editor_get_type(void)
{
static guint type = 0;
if(!type) {
GtkTypeInfo type_info = {
"RuleEditor",
sizeof(RuleEditor),
sizeof(RuleEditorClass),
(GtkClassInitFunc)rule_editor_class_init,
(GtkObjectInitFunc)rule_editor_init,
(GtkArgSetFunc)NULL,
(GtkArgGetFunc)NULL
};
type = gtk_type_unique(gnome_dialog_get_type(), &type_info);
}
return type;
}
static void
rule_editor_class_init(RuleEditorClass *class)
{
GtkObjectClass *object_class;
object_class = (GtkObjectClass *)class;
parent_class = gtk_type_class(gnome_dialog_get_type());
object_class->finalize = rule_editor_finalise;
/* override methods */
class->set_source = set_source;
class->set_sensitive = set_sensitive;
class->create_rule = create_rule;
/* signals */
gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
}
static void
rule_editor_init(RuleEditor *o)
{
o->priv = g_malloc0(sizeof(*o->priv));
}
static void
rule_editor_finalise(GtkObject *obj)
{
RuleEditor *o = (RuleEditor *)obj;
gtk_object_unref((GtkObject *)o->context);
g_free(o->priv);
((GtkObjectClass *)(parent_class))->finalize(obj);
}
/**
* rule_editor_new:
*
* Create a new RuleEditor object.
*
* Return value: A new #RuleEditor object.
**/
RuleEditor *
rule_editor_new(RuleContext *f, const char *source)
{
GladeXML *gui;
RuleEditor *o = (RuleEditor *)gtk_type_new(rule_editor_get_type());
GtkWidget *w;
gui = glade_xml_new(FILTER_GLADEDIR "/filter.glade", "rule_editor");
rule_editor_construct(o, f, gui, source);
w = glade_xml_get_widget(gui, "rule_frame");
gtk_frame_set_label((GtkFrame *)w, _("Rules"));
gtk_object_unref((GtkObject *)gui);
return o;
}
/* used internally by implementations if required */
void
rule_editor_set_sensitive(RuleEditor *re)
{
return ((RuleEditorClass *)((GtkObject *)re)->klass)->set_sensitive(re);
}
/* used internally by implementations */
void
rule_editor_set_source(RuleEditor *re, const char *source)
{
return ((RuleEditorClass *)((GtkObject *)re)->klass)->set_source(re, source);
}
/* factory method for "add" button */
FilterRule *
rule_editor_create_rule(RuleEditor *re)
{
return ((RuleEditorClass *)((GtkObject *)re)->klass)->create_rule(re);
}
static FilterRule *
create_rule(RuleEditor *re)
{
FilterRule *rule = filter_rule_new();
FilterPart *part;
/* create a rule with 1 part in it */
part = rule_context_next_part(re->context, NULL);
filter_rule_add_part(rule, filter_part_clone(part));
return rule;
}
static void
add_editor_clicked (GtkWidget *dialog, int button, RuleEditor *re)
{
GtkWidget *item;
GList *l = NULL;
char *string;
switch (button) {
case 0:
if (!filter_rule_validate (re->edit)) {
/* no need to popup a dialog because the validate code does that. */
return;
}
gtk_object_ref (GTK_OBJECT (re->edit));
string = e_utf8_to_gtk_string (GTK_WIDGET (re->list), re->edit->name);
item = gtk_list_item_new_with_label (string);
g_free (string);
gtk_object_set_data (GTK_OBJECT (item), "rule", re->edit);
gtk_widget_show (item);
l = g_list_append (l, GTK_LIST_ITEM (item));
gtk_list_append_items (re->list, l);
gtk_list_select_child (re->list, item);
re->current = re->edit;
rule_context_add_rule (re->context, re->current);
case 1:
default:
gnome_dialog_close (GNOME_DIALOG (dialog));
case -1:
gtk_object_unref (GTK_OBJECT (re->edit));
re->edit = NULL;
rule_editor_set_sensitive (re);
}
}
static void
rule_add (GtkWidget *widget, RuleEditor *re)
{
GtkWidget *dialog;
GtkWidget *rules;
d(printf ("add rule\n"));
re->edit = rule_editor_create_rule (re);
filter_rule_set_source (re->edit, re->source);
rules = filter_rule_get_widget (re->edit, re->context);
dialog = gnome_dialog_new (_("Add Rule"),
GNOME_STOCK_BUTTON_OK,
GNOME_STOCK_BUTTON_CANCEL,
NULL);
gtk_window_set_policy (GTK_WINDOW (dialog), FALSE, TRUE, FALSE);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
gtk_box_pack_start (GTK_BOX (GNOME_DIALOG (dialog)->vbox), rules, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (dialog), "clicked", add_editor_clicked, re);
gtk_widget_show (dialog);
}
static void
edit_editor_clicked (GtkWidget *dialog, int button, RuleEditor *re)
{
GtkWidget *item;
char *string;
int pos;
switch (button) {
case 0:
if (!filter_rule_validate (re->edit)) {
/* no need to popup a dialog because the validate code does that. */
return;
}
pos = rule_context_get_rank_rule (re->context, re->current, re->source);
if (pos != -1) {
item = g_list_nth_data (((GtkList *)re->list)->children, pos);
string = e_utf8_to_gtk_string (GTK_WIDGET (item), re->current->name);
gtk_label_set_text (GTK_LABEL (GTK_BIN (item)->child), string);
g_free (string);
}
case 1:
default:
gnome_dialog_close (GNOME_DIALOG (dialog));
case -1:
gtk_object_unref (GTK_OBJECT (re->edit));
re->edit = NULL;
rule_editor_set_sensitive (re);
}
}
static void
rule_edit (GtkWidget *widget, RuleEditor *re)
{
GtkWidget *dialog;
GtkWidget *rules;
if (re->current == NULL)
return;
re->edit = re->current;
gtk_object_ref (GTK_OBJECT (re->edit));
rules = filter_rule_get_widget (re->current, re->context);
dialog = gnome_dialog_new (_("Edit Rule"),
GNOME_STOCK_BUTTON_OK,
GNOME_STOCK_BUTTON_CANCEL,
NULL);
gtk_window_set_policy (GTK_WINDOW (dialog), FALSE, TRUE, FALSE);
gtk_window_set_modal (GTK_WINDOW (dialog), TRUE);
gtk_box_pack_start (GTK_BOX (GNOME_DIALOG (dialog)->vbox), rules, TRUE, TRUE, 0);
gtk_signal_connect (GTK_OBJECT (dialog), "clicked", edit_editor_clicked, re);
gtk_widget_show (dialog);
}
static void
rule_delete (GtkWidget *widget, RuleEditor *re)
{
int pos;
GList *l;
GtkListItem *item;
d(printf ("delete rule\n"));
pos = rule_context_get_rank_rule (re->context, re->current, re->source);
if (pos != -1) {
rule_context_remove_rule (re->context, re->current);
item = g_list_nth_data (((GtkList *)re->list)->children, pos);
l = g_list_append (NULL, item);
gtk_list_remove_items (re->list, l);
g_list_free (l);
gtk_object_unref (GTK_OBJECT (re->current));
re->current = NULL;
}
rule_editor_set_sensitive (re);
}
static void
rule_move (RuleEditor *re, int from, int to)
{
GList *l;
GtkListItem *item;
d(printf ("moving %d to %d\n", from, to));
rule_context_rank_rule (re->context, re->current, to);
item = g_list_nth_data (re->list->children, from);
l = g_list_append (NULL, item);
gtk_list_remove_items_no_unref (re->list, l);
gtk_list_insert_items (re->list, l, to);
gtk_list_select_child (re->list, GTK_WIDGET (item));
rule_editor_set_sensitive (re);
}
static void
rule_up (GtkWidget *widget, RuleEditor *re)
{
int pos;
d(printf ("up rule\n"));
pos = rule_context_get_rank_rule (re->context, re->current, re->source);
if (pos > 0)
rule_move (re, pos, pos - 1);
}
static void
rule_down (GtkWidget *widget, RuleEditor *re)
{
int pos;
d(printf ("down rule\n"));
pos = rule_context_get_rank_rule (re->context, re->current, re->source);
rule_move (re, pos, pos + 1);
}
static struct {
char *name;
GtkSignalFunc func;
} edit_buttons[] = {
{ "rule_add", rule_add },
{ "rule_edit", rule_edit },
{ "rule_delete", rule_delete },
{ "rule_up", rule_up },
{ "rule_down", rule_down },
};
static void
set_sensitive (RuleEditor *re)
{
FilterRule *rule = NULL;
int index = -1, count = 0;
while ((rule = rule_context_next_rule(re->context, rule, re->source))) {
if (rule == re->current)
index = count;
count++;
}
d(printf("index = %d count=%d\n", index, count));
count--;
gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_EDIT]), index != -1);
gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_DELETE]), index != -1);
gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_UP]), index > 0);
gtk_widget_set_sensitive(GTK_WIDGET(re->priv->buttons[BUTTON_DOWN]), index >= 0 && index < count);
}
static void
select_rule (GtkWidget *w, GtkWidget *child, RuleEditor *re)
{
re->current = gtk_object_get_data (GTK_OBJECT (child), "rule");
g_assert (re->current);
rule_editor_set_sensitive (re);
}
static void
double_click (GtkWidget *widget, GdkEventButton *event, RuleEditor *re)
{
if (re->current && event->type == GDK_2BUTTON_PRESS)
rule_edit (widget, re);
}
static void
set_source(RuleEditor *re, const char *source)
{
FilterRule *rule = NULL;
GList *newitems = NULL;
gtk_list_clear_items(GTK_LIST(re->list), 0, -1);
d(printf("Checking for rules that are of type %s\n", source));
while ((rule = rule_context_next_rule(re->context, rule, source)) != NULL) {
GtkWidget *item;
char *s;
d(printf(" hit %s(%d)\n", rule->name, source));
s = e_utf8_to_gtk_string(GTK_WIDGET(re->list), rule->name);
item = gtk_list_item_new_with_label(s);
g_free(s);
gtk_object_set_data(GTK_OBJECT(item), "rule", rule);
gtk_widget_show(GTK_WIDGET(item));
newitems = g_list_append(newitems, item);
}
gtk_list_append_items(re->list, newitems);
g_free(re->source);
re->source = g_strdup(source);
re->current = NULL;
rule_editor_set_sensitive(re);
}
void
rule_editor_construct(RuleEditor *re, RuleContext *context, GladeXML *gui, const char *source)
{
GtkWidget *w;
int i;
re->context = context;
gtk_object_ref((GtkObject *)context);
w = glade_xml_get_widget(gui, "rule_editor");
gtk_box_pack_start((GtkBox *)GNOME_DIALOG(re)->vbox, w, TRUE, TRUE, 0);
for (i=0; i<BUTTON_LAST; i++) {
re->priv->buttons[i] = (GtkButton *)w = glade_xml_get_widget(gui, edit_buttons[i].name);
gtk_signal_connect(GTK_OBJECT(w), "clicked", edit_buttons[i].func, re);
}
re->list = (GtkList *) w = glade_xml_get_widget(gui, "rule_list");
gtk_signal_connect(GTK_OBJECT(w), "select_child", select_rule, re);
gtk_signal_connect(GTK_OBJECT(w), "button_press_event", double_click, re);
rule_editor_set_source(re, source);
gnome_dialog_append_buttons((GnomeDialog *)re, GNOME_STOCK_BUTTON_OK, GNOME_STOCK_BUTTON_CANCEL, 0);
}