new class. Will handle all sort of information media (Mime mail messages,

1999-08-24  bertrand  <Bertrand.Guiheneuf@aful.org>

	* camel/camel-medium.c (camel_medium_class_init):
	new class. Will handle all sort of information media
	(Mime mail messages, Lotus Notes  mail messages,
	postit notes, faxes, who knows .... :)
	CamelMimePart will inherit from it.

	* camel/camel-mime-part.c (_set_disposition):
	(_set_description):
	description and disposition parameters are now const.


	* camel/gmime-content-field.c (gmime_content_field_free): added
	assertion code.

	* camel/providers/MH/camel-mh-folder.c (_get_message):
	uses buffered stream.

	* camel/camel-stream-buffered-fs.c:
	new stream to accelerate file ops.

Thanks to jwz, I've decided to add a level of abstraction to Camel.
In the future, it should be able to handle other mail systems, but
also non-mail information vehicles.

Enough for today. Roller time!

svn path=/trunk/; revision=1140

1 files changed, 197 insertions, 0 deletions

diff --git a/camel/camel-medium.c b/camel/camel-medium.c
new file mode 100644
index 0000000000..8414432a07
--- /dev/null
+++ b/camel/camel-medium.c
@@ -0,0 +1,197 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* camelMedium.c : Abstract class for a medium */
+
+
+/* 
+ *
+ * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@inria.fr> .
+ *
+ * This program is free software; you can redistribute it and/or 
+ * modify it under the terms of the GNU 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 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
+ */
+#include <config.h>
+#include "camel-medium.h"
+#include <stdio.h>
+#include "gmime-content-field.h"
+#include "string-utils.h"
+#include "camel-log.h"
+#include "gmime-utils.h"
+#include "camel-simple-data-wrapper.h"
+
+
+
+
+
+static CamelDataWrapperClass *parent_class=NULL;
+
+/* Returns the class for a CamelMedium */
+#define CMP_CLASS(so) CAMEL_MEDIUM_CLASS (GTK_OBJECT(so)->klass)
+
+static void _add_header (CamelMedium *medium, gchar *header_name, gchar *header_value);
+static void _remove_header (CamelMedium *medium, const gchar *header_name);
+static const gchar *_get_header (CamelMedium *medium, const gchar *header_name);
+
+
+static void _finalize (GtkObject *object);
+
+static void
+camel_medium_class_init (CamelMediumClass *camel_medium_class)
+{
+	CamelDataWrapperClass *camel_data_wrapper_class = CAMEL_DATA_WRAPPER_CLASS (camel_medium_class);
+	GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_data_wrapper_class);
+
+	parent_class = gtk_type_class (camel_data_wrapper_get_type ());
+	
+	/* virtual method definition */
+	camel_medium_class->add_header = _add_header;
+	camel_medium_class->remove_header = _remove_header;
+	camel_medium_class->get_header = _get_header;
+	
+	
+	
+	/* virtual method overload */
+	//	camel_data_wrapper_class->write_to_stream = _write_to_stream;
+	//camel_data_wrapper_class->construct_from_stream = _construct_from_stream;
+
+	gtk_object_class->finalize = _finalize;
+}
+
+static void
+camel_medium_init (gpointer   object,  gpointer   klass)
+{
+	CamelMedium *camel_medium = CAMEL_MEDIUM (object);
+	
+	camel_medium->headers =  g_hash_table_new (g_str_hash, g_str_equal);
+}
+
+
+
+
+GtkType
+camel_medium_get_type (void)
+{
+	static GtkType camel_medium_type = 0;
+	
+	if (!camel_medium_type)	{
+		GtkTypeInfo camel_medium_info =	
+		{
+			"CamelMedium",
+			sizeof (CamelMedium),
+			sizeof (CamelMediumClass),
+			(GtkClassInitFunc) camel_medium_class_init,
+			(GtkObjectInitFunc) camel_medium_init,
+				/* reserved_1 */ NULL,
+				/* reserved_2 */ NULL,
+			(GtkClassInitFunc) NULL,
+		};
+		
+		camel_medium_type = gtk_type_unique (camel_data_wrapper_get_type (), &camel_medium_info);
+	}
+	
+	return camel_medium_type;
+}
+
+
+static void           
+_finalize (GtkObject *object)
+{
+	CamelMedium *medium = CAMEL_MEDIUM (object);
+
+
+	CAMEL_LOG_FULL_DEBUG ("Entering CamelMedium::finalize\n");
+
+	if (medium->headers) {
+		g_hash_table_destroy (medium->headers);
+	}
+
+	GTK_OBJECT_CLASS (parent_class)->finalize (object);
+	CAMEL_LOG_FULL_DEBUG ("Leaving CamelMedium::finalize\n");
+}
+
+
+static void
+_add_header (CamelMedium *medium, gchar *header_name, gchar *header_value)
+{
+	gboolean header_exists;
+	gchar *old_header_name;
+	gchar *old_header_value;
+	
+
+	header_exists = g_hash_table_lookup_extended (medium->headers, header_name, 
+						      (gpointer *) &old_header_name,
+						      (gpointer *) &old_header_value);
+	if (header_exists) {
+		g_free (old_header_name);
+		g_free (old_header_value);
+	}
+	
+	g_hash_table_insert (medium->headers, header_name, header_value);
+}
+
+
+void
+camel_medium_add_header (CamelMedium *medium, gchar *header_name, gchar *header_value)
+{
+	CMP_CLASS(medium)->add_header(medium, header_name, header_value);
+}
+
+
+
+static void
+_remove_header (CamelMedium *medium, const gchar *header_name)
+{
+	
+	gboolean header_exists;
+	gchar *old_header_name;
+	gchar *old_header_value;
+	
+	header_exists = g_hash_table_lookup_extended (medium->headers, header_name, 
+						      (gpointer *) &old_header_name,
+						      (gpointer *) &old_header_value);
+	if (header_exists) {
+		g_free (old_header_name);
+		g_free (old_header_value);
+	}
+	
+	g_hash_table_remove (medium->headers, header_name);
+	
+}
+
+void
+camel_medium_remove_header (CamelMedium *medium, const gchar *header_name)
+{
+	CMP_CLASS(medium)->remove_header(medium, header_name);
+}
+
+
+
+static const gchar *
+_get_header (CamelMedium *medium, const gchar *header_name)
+{
+	
+	gchar *old_header_name;
+	gchar *old_header_value;
+	gchar *header_value;
+	
+	header_value = (gchar *)g_hash_table_lookup (medium->headers, header_name);
+	return header_value;
+}
+
+const gchar *
+camel_medium_get_header (CamelMedium *medium, const gchar *header_name)
+{
+	return CMP_CLASS(medium)->get_header (medium, header_name);
+}
+