** 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, 304 insertions, 0 deletions

diff --git a/filter/filter-option.c b/filter/filter-option.c
new file mode 100644
index 0000000000..31be216f25
--- /dev/null
+++ b/filter/filter-option.c
@@ -0,0 +1,304 @@
+/*
+ *  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-option.h"
+#include "filter-part.h"
+#include "e-util/e-sexp.h"
+
+#define d(x)
+
+static void xml_create(FilterElement *fe, xmlNodePtr node);
+static xmlNodePtr xml_encode(FilterElement *fe);
+static int xml_decode(FilterElement *fe, xmlNodePtr node);
+static FilterElement *clone(FilterElement *fe);
+static GtkWidget *get_widget(FilterElement *fe);
+static void build_code(FilterElement *fe, GString *out, struct _FilterPart *ff);
+static void format_sexp(FilterElement *, GString *);
+
+static void filter_option_class_init	(FilterOptionClass *class);
+static void filter_option_init	(FilterOption *gspaper);
+static void filter_option_finalise	(GtkObject *obj);
+
+#define _PRIVATE(x) (((FilterOption *)(x))->priv)
+
+struct _FilterOptionPrivate {
+};
+
+static FilterElementClass *parent_class;
+
+enum {
+	LAST_SIGNAL
+};
+
+static guint signals[LAST_SIGNAL] = { 0 };
+
+guint
+filter_option_get_type (void)
+{
+	static guint type = 0;
+	
+	if (!type) {
+		GtkTypeInfo type_info = {
+			"FilterOption",
+			sizeof(FilterOption),
+			sizeof(FilterOptionClass),
+			(GtkClassInitFunc)filter_option_class_init,
+			(GtkObjectInitFunc)filter_option_init,
+			(GtkArgSetFunc)NULL,
+			(GtkArgGetFunc)NULL
+		};
+		
+		type = gtk_type_unique(filter_element_get_type (), &type_info);
+	}
+	
+	return type;
+}
+
+static void
+filter_option_class_init (FilterOptionClass *class)
+{
+	GtkObjectClass *object_class;
+	FilterElementClass *filter_element = (FilterElementClass *)class;
+
+	object_class = (GtkObjectClass *)class;
+	parent_class = gtk_type_class(filter_element_get_type ());
+
+	object_class->finalize = filter_option_finalise;
+
+	/* override methods */
+	filter_element->xml_create = xml_create;
+	filter_element->xml_encode = xml_encode;
+	filter_element->xml_decode = xml_decode;
+	filter_element->clone = clone;
+	filter_element->get_widget = get_widget;
+	filter_element->build_code = build_code;
+	filter_element->format_sexp = format_sexp;
+
+	/* signals */
+
+	gtk_object_class_add_signals(object_class, signals, LAST_SIGNAL);
+}
+
+static void
+filter_option_init (FilterOption *o)
+{
+	o->priv = g_malloc0(sizeof(*o->priv));
+}
+
+static void
+filter_option_finalise(GtkObject *obj)
+{
+	FilterOption *o = (FilterOption *)obj;
+
+	o = o;
+
+        ((GtkObjectClass *)(parent_class))->finalize(obj);
+}
+
+/**
+ * filter_option_new:
+ *
+ * Create a new FilterOption object.
+ * 
+ * Return value: A new #FilterOption object.
+ **/
+FilterOption *
+filter_option_new(void)
+{
+	FilterOption *o = (FilterOption *)gtk_type_new(filter_option_get_type ());
+	return o;
+}
+
+static struct _filter_option *
+find_option(FilterOption *fo, const char *name)
+{
+	GList *l = fo->options;
+	struct _filter_option *op;
+
+	while (l) {
+		op = l->data;
+		if (!strcmp(name, op->value)) {
+			return op;
+		}
+		l = g_list_next(l);
+	}
+	return NULL;
+}
+
+static void xml_create(FilterElement *fe, xmlNodePtr node)
+{
+	FilterOption *fo = (FilterOption *)fe;
+	xmlNodePtr n, work;
+	struct _filter_option *op;
+
+	/* parent implementation */
+        ((FilterElementClass *)(parent_class))->xml_create(fe, node);
+
+	n = node->childs;
+	while (n) {
+		if (!strcmp(n->name, "option")) {
+			op = g_malloc0(sizeof(*op));
+			op->value = xmlGetProp(n, "value");
+			work = n->childs;
+			while (work) {
+				if (!strcmp(work->name, "title")) {
+					if (!op->title) {
+						op->title = xmlNodeGetContent(work);
+					}
+				} else if (!strcmp(work->name, "code")) {
+					if (!op->code) {
+						op->code = xmlNodeGetContent(work);
+					}
+				}
+				work = work->next;
+			}
+			d(printf("creating new option:\n title %s\n value %s\n code %s\n", op->title, op->value, op->code));
+			fo->options = g_list_append(fo->options, op);
+			if (fo->current == NULL)
+				fo->current = op;
+		} else {
+			g_warning("Unknown xml node within optionlist: %s\n", n->name);
+		}
+		n = n->next;
+	}
+}
+
+static xmlNodePtr xml_encode(FilterElement *fe)
+{
+	xmlNodePtr value;
+	FilterOption *fo = (FilterOption *)fe;
+
+	d(printf("Encoding option as xml\n"));
+	value = xmlNewNode(NULL, "value");
+	xmlSetProp(value, "name", fe->name);
+	xmlSetProp(value, "type", "option");
+	if (fo->current) {
+		xmlSetProp(value, "value", fo->current->value);
+	}
+	return value;
+}
+
+static int xml_decode(FilterElement *fe, xmlNodePtr node)
+{
+	FilterOption *fo = (FilterOption *)fe;
+	char *value;
+
+	d(printf("Decoding option from xml\n"));
+	fe->name = xmlGetProp(node, "name");
+	value = xmlGetProp(node, "value");
+	if (value) {
+		fo->current = find_option(fo, value);
+		xmlFree(value);
+	} else {
+		fo->current = NULL;
+	}
+	return 0;
+}
+
+static void option_activate(GtkMenuItem *item, FilterOption *fo)
+{
+	fo->current = gtk_object_get_data((GtkObject *)item, "option");
+	d(printf("option changed to %s\n", fo->current->title));
+}
+
+static GtkWidget *get_widget(FilterElement *fe)
+{
+	FilterOption *fo = (FilterOption *)fe;
+	GtkMenu *menu;
+	GtkOptionMenu *omenu;
+	GtkMenuItem *item;
+	GList *l = fo->options;
+	struct _filter_option *op;
+	int index = 0, current=0;
+
+	menu = (GtkMenu *)gtk_menu_new();
+	while (l) {
+		op = l->data;
+		item = (GtkMenuItem *)gtk_menu_item_new_with_label(op->title);
+		gtk_object_set_data((GtkObject *)item, "option", op);
+		gtk_signal_connect((GtkObject *)item, "activate", option_activate, fo);
+		gtk_menu_append(menu, (GtkWidget *)item);
+		gtk_widget_show((GtkWidget *)item);
+		if (op == fo->current) {
+			current = index;
+		}
+		l = g_list_next(l);
+		index++;
+	}
+
+	omenu = (GtkOptionMenu *)gtk_option_menu_new();
+	gtk_option_menu_set_menu(omenu, (GtkWidget *)menu);
+	gtk_option_menu_set_history(omenu, current);
+
+	return (GtkWidget *)omenu;
+}
+
+static void build_code(FilterElement *fe, GString *out, struct _FilterPart *ff)
+{
+	FilterOption *fo = (FilterOption *)fe;
+
+	d(printf("building option code %p, current = %p\n", fo, fo->current));
+
+	if (fo->current) {
+		filter_part_expand_code(ff, fo->current->code, out);
+	}
+}
+
+static void format_sexp(FilterElement *fe, GString *out)
+{
+	FilterOption *fo = (FilterOption *)fe;
+
+	if (fo->current) {
+		e_sexp_encode_string(out, fo->current->value);
+	}
+}
+
+static FilterElement *clone(FilterElement *fe)
+{
+	FilterOption *fo = (FilterOption *)fe, *new;
+	GList *l;
+	struct _filter_option *fn, *op;
+
+	d(printf("cloning option\n"));
+
+        new = FILTER_OPTION(((FilterElementClass *)(parent_class))->clone(fe));
+	l = fo->options;
+	while (l) {
+		op = l->data;
+		fn = g_malloc(sizeof(*fn));
+		d(printf("  option %s\n", op->title));
+		fn->title = g_strdup(op->title);
+		fn->value = g_strdup(op->value);
+		fn->code = g_strdup(op->code);
+		new->options = g_list_append(new->options, fn);
+		l = g_list_next(l);
+
+		if (new->current == NULL)
+			new->current = fn;
+	}
+
+	d(printf("cloning option code %p, current = %p\n", new, new->current));
+
+	return (FilterElement *)new;
+}