** Almost a total rewrite of every file, except for filter-driver which

2000-07-30  Not Zed  <NotZed@HelixCode.com>

        **  Almost a total rewrite of every file, except for filter-driver
        which just had minor updates.

        The rule format has changed.

svn path=/trunk/; revision=4418

1 files changed, 411 insertions, 0 deletions

diff --git a/filter/filter-filter.c b/filter/filter-filter.c
new file mode 100644
index 0000000000..9e902dbbd8
--- /dev/null
+++ b/filter/filter-filter.c
@@ -0,0 +1,411 @@
+/*
+ *  Copyright (C) 2000 Helix Code Inc.
+ *
+ *  Authors: Not Zed <notzed@lostzed.mmc.com.au>
+ *
+ *  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 <gtk/gtk.h>
+#include <gnome.h>
+#include <gnome-xml/xmlmemory.h>
+
+#include "filter-filter.h"
+#include "filter-context.h"
+
+#define d(x) x
+
+static xmlNodePtr xml_encode(FilterRule *);
+static int xml_decode(FilterRule *, xmlNodePtr, struct _RuleContext *f);
+/*static void build_code(FilterRule *, GString *out);*/
+static GtkWidget *get_widget(FilterRule *fr, struct _RuleContext *f);
+
+static void filter_filter_class_init	(FilterFilterClass *class);
+static void filter_filter_init	(FilterFilter *gspaper);
+static void filter_filter_finalise	(GtkObject *obj);
+
+#define _PRIVATE(x) (((FilterFilter *)(x))->priv)
+
+struct _FilterFilterPrivate {
+};
+
+static FilterRuleClass *parent_class;
+
+enum {
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+guint
+filter_filter_get_type (void)
+{
+	static guint type = 0;
+	
+	if (!type) {
+		GtkTypeInfo type_info = {
+			"FilterFilter",
+			sizeof(FilterFilter),
+			sizeof(FilterFilterClass),
+			(GtkClassInitFunc)filter_filter_class_init,
+			(GtkObjectInitFunc)filter_filter_init,
+			(GtkArgSetFunc)NULL,
+			(GtkArgGetFunc)NULL
+		};
+		
+		type = gtk_type_unique(filter_rule_get_type (), &type_info);
+	}
+	
+	return type;
+}
+
+static void
+filter_filter_class_init (FilterFilterClass *class)
+{
+	GtkObjectClass *object_class;
+	FilterRuleClass *filter_rule = (FilterRuleClass *)class;
+
+	object_class = (GtkObjectClass *)class;
+	parent_class = gtk_type_class(filter_rule_get_type ());
+
+	object_class->finalize = filter_filter_finalise;
+
+	/* override methods */
+	filter_rule->xml_encode = xml_encode;
+	filter_rule->xml_decode = xml_decode;
+	/*filter_rule->build_code = build_code;*/
+	filter_rule->get_widget = get_widget;
+
+	/* signals */
+
+	gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
+}
+
+static void
+filter_filter_init (FilterFilter *o)
+{
+	o->priv = g_malloc0(sizeof(*o->priv));
+}
+
+static void
+unref_list(GList *l)
+{
+	while (l) {
+		gtk_object_unref((GtkObject *)l->data);
+		l = g_list_next(l);
+	}
+}
+
+static void
+filter_filter_finalise(GtkObject *obj)
+{
+	FilterFilter *o = (FilterFilter *)obj;
+
+	unref_list(o->actions);
+
+        ((GtkObjectClass *)(parent_class))->finalize(obj);
+}
+
+/**
+ * filter_filter_new:
+ *
+ * Create a new FilterFilter object.
+ * 
+ * Return value: A new #FilterFilter object.
+ **/
+FilterFilter *
+filter_filter_new(void)
+{
+	FilterFilter *o = (FilterFilter *)gtk_type_new(filter_filter_get_type ());
+	return o;
+}
+
+void		filter_filter_add_action	(FilterFilter *fr, FilterPart *fp)
+{
+	fr->actions = g_list_append(fr->actions, fp);
+}
+
+void		filter_filter_remove_action	(FilterFilter *fr, FilterPart *fp)
+{
+	fr->actions = g_list_remove(fr->actions, fp);
+}
+
+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);
+	}
+}
+
+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 xmlNodePtr xml_encode(FilterRule *fr)
+{
+	xmlNodePtr node, set, work;
+	GList *l;
+	FilterFilter *ff = (FilterFilter *)fr;
+
+        node = ((FilterRuleClass *)(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 = g_list_next(l);
+	}
+	return node;
+
+}
+
+static void load_set(xmlNodePtr node, FilterFilter *ff, RuleContext *f)
+{
+	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 *)f, 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("Unknwon xml node in part: %s", work->name);
+		}
+		work = work->next;
+	}
+}
+
+static int xml_decode(FilterRule *fr, xmlNodePtr node, struct _RuleContext *f)
+{
+	xmlNodePtr work;
+	FilterFilter *ff = (FilterFilter *)fr;
+	int result;
+	
+        result = ((FilterRuleClass *)(parent_class))->xml_decode(fr, node, f);
+	if (result != 0)
+		return result;
+
+	work = node->childs;
+	while (work) {
+		if (!strcmp(work->name, "actionset")) {
+			load_set(work, ff, f);
+		}
+		work = work->next;
+	}
+	return 0;
+}
+
+/*static void build_code(FilterRule *fr, GString *out)
+{
+        return ((FilterRuleClass *)(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 = gtk_object_get_data((GtkObject *)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((GtkContainer *)data->container, data->partwidget);
+	newpart = filter_part_clone(part);
+	filter_filter_replace_action((FilterFilter *)data->fr, data->part, newpart);
+	gtk_object_unref((GtkObject *)data->part);
+	data->part = newpart;
+	data->partwidget = filter_part_get_widget(newpart);
+	if (data->partwidget)
+		gtk_box_pack_start((GtkBox *)data->container, data->partwidget, FALSE, FALSE, 0);
+}
+
+static GtkWidget *
+get_rule_part_widget(FilterContext *f, FilterPart *newpart, FilterRule *fr)
+{
+	FilterPart *part = NULL;
+	GtkMenu *menu;
+	GtkMenuItem *item;
+	GtkOptionMenu *omenu;
+	GtkHBox *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 = (GtkHBox *)gtk_hbox_new(FALSE, 0);
+	p = filter_part_get_widget(newpart);
+
+	data->partwidget = p;
+	data->container = (GtkWidget *)hbox;
+
+	menu = (GtkMenu *)gtk_menu_new();
+	while ((part=filter_context_next_action(f, part))) {
+		item = (GtkMenuItem *)gtk_menu_item_new_with_label(part->title);
+		gtk_object_set_data((GtkObject *)item, "part", part);
+		gtk_signal_connect((GtkObject *)item, "activate", option_activate, data);
+		gtk_menu_append(menu, (GtkWidget *)item);
+		gtk_widget_show((GtkWidget *)item);
+		if (!strcmp(newpart->title, part->title)) {
+			current = index;
+		}
+		index++;
+	}
+
+	omenu = (GtkOptionMenu *)gtk_option_menu_new();
+	gtk_option_menu_set_menu(omenu, (GtkWidget *)menu);
+	gtk_option_menu_set_history(omenu, current);
+	gtk_widget_show((GtkWidget *)omenu);
+
+	gtk_box_pack_start((GtkBox *)hbox, (GtkWidget *)omenu, FALSE, FALSE, 0);
+	if (p) {
+		gtk_box_pack_start((GtkBox *)hbox, p, FALSE, FALSE, 0);
+	}
+	gtk_widget_show_all((GtkWidget *)hbox);
+
+	return (GtkWidget *)hbox;
+}
+
+struct _rule_data {
+	FilterRule *fr;
+	FilterContext *f;
+	GtkWidget *parts;
+};
+
+static void
+less_parts(GtkWidget *button, struct _rule_data *data)
+{
+	GList *l;
+	FilterPart *part;
+	GtkWidget *w;
+
+	l = ((FilterFilter *)data->fr)->actions;
+	if (g_list_length(l) < 2)
+		return;
+
+	/* remove the last one from the list */
+	l = g_list_last(l);
+	part = l->data;
+	filter_filter_remove_action((FilterFilter *)data->fr, part);
+	gtk_object_unref((GtkObject *)part);
+
+	/* and from the display */
+	l = g_list_last(GTK_BOX(data->parts)->children);
+	w = ((GtkBoxChild *)l->data)->widget;
+	gtk_container_remove((GtkContainer *)data->parts, w);
+}
+
+static void
+more_parts(GtkWidget *button, struct _rule_data *data)
+{
+	FilterPart *new;
+	GtkWidget *w;
+
+	/* create a new rule entry, use the first type of rule */
+	new = filter_context_next_action((FilterContext *)data->f, NULL);
+	if (new) {
+		new = filter_part_clone(new);
+		filter_filter_add_action((FilterFilter *)data->fr, new);
+		w = get_rule_part_widget(data->f, new, data->fr);
+		gtk_box_pack_start((GtkBox *)data->parts, w, FALSE, FALSE, 0);
+	}
+}
+
+static GtkWidget *get_widget(FilterRule *fr, struct _RuleContext *f)
+{
+	GtkWidget *widget;
+	GtkVBox *parts, *inframe;
+	GtkHBox *hbox;
+	GtkWidget *w;
+	GtkFrame *frame;
+	GList *l;
+	FilterPart *part;
+	struct _rule_data *data;
+	FilterFilter *ff = (FilterFilter *)fr;
+
+	d(printf("filter filter.get widget\n"));
+
+        widget = ((FilterRuleClass *)(parent_class))->get_widget(fr, f);
+
+	/* and now for the action area */
+	frame = (GtkFrame *)gtk_frame_new("Perform actions");
+	inframe = (GtkVBox *)gtk_vbox_new(FALSE, 3);
+	gtk_container_add((GtkContainer *)frame, (GtkWidget *)inframe);
+	
+	parts = (GtkVBox *)gtk_vbox_new(FALSE, 3);
+	data = g_malloc0(sizeof(*data));
+	data->f = (FilterContext *)f;
+	data->fr = fr;
+	data->parts = (GtkWidget *)parts;
+	
+	l = ff->actions;
+	while (l) {
+		part = l->data;
+		d(printf("adding action %s\n", part->title));
+		w = get_rule_part_widget((FilterContext *)f, part, fr);
+		gtk_box_pack_start((GtkBox *)parts, (GtkWidget *)w, FALSE, FALSE, 3);
+		l = g_list_next(l);
+	}
+	gtk_box_pack_start((GtkBox *)inframe, (GtkWidget *)parts, FALSE, FALSE, 3);
+	
+	hbox = (GtkHBox *)gtk_hbox_new(FALSE, 3);
+	w = gtk_button_new_with_label("Less");
+	gtk_signal_connect((GtkObject *)w, "clicked", less_parts, data);
+	gtk_box_pack_end((GtkBox *)hbox, (GtkWidget *)w, FALSE, FALSE, 0);
+	w = gtk_button_new_with_label("More");
+	gtk_signal_connect((GtkObject *)w, "clicked", more_parts, data);
+	gtk_box_pack_end((GtkBox *)hbox, (GtkWidget *)w, FALSE, FALSE, 0);
+	gtk_box_pack_start((GtkBox *)inframe, (GtkWidget *)hbox, FALSE, FALSE, 3);
+
+	gtk_widget_show_all((GtkWidget *)frame);
+
+	gtk_box_pack_start((GtkBox *)widget, (GtkWidget *)frame, FALSE, FALSE, 3);
+
+	return widget;
+}
+