parent class is now CamelSeekableStream idem idem idem idem (_seek):

2000-01-24  bertrand  <bertrand@helixcode.com>

	* camel/camel-seekable-stream.c:
	* camel/camel-seekable-stream.h:

	* camel/camel-simple-data-wrapper-stream.h:  parent class is now
	CamelSeekableStream
	* camel/camel-stream-buffered-fs.h: idem
	* camel/camel-stream-buffered-fs.c: idem
	* camel/camel-stream-mem.h: idem
	* camel/camel-stream-mem.c: idem
	(_seek): change declaration
	* camel/camel-stream-fs.c: parent class is now
	CamelSeekableStream
	(_seek): change declaration

	* camel/camel-stream-fs.h: parent class is now
	CamelSeekableStream

Major compatible change in the stream hierarchy.
Removed the seek method from the general streams
so that we can use them as "DataSources".

svn path=/trunk/; revision=1622

1 files changed, 87 insertions, 0 deletions

diff --git a/camel/camel-seekable-stream.h b/camel/camel-seekable-stream.h
new file mode 100644
index 0000000000..7f00edc81a
--- /dev/null
+++ b/camel/camel-seekable-stream.h
@@ -0,0 +1,87 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+/* camel-stream-fs.h :stream based on unix filesystem */
+
+/* 
+ *
+ * Author : 
+ *  Bertrand Guiheneuf <bertrand@helixcode.com>
+ *
+ * Copyright 1999, 2000 HelixCode (http://www.helixcode.com) .
+ *
+ * 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
+ */
+
+
+#ifndef CAMEL_SEEKABLE_STREAM_H
+#define CAMEL_SEEKABLE_STREAM_H 1
+
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus }*/
+
+#include <gtk/gtk.h>
+#include <stdio.h>
+#include "camel-stream.h"
+
+#define CAMEL_SEEKABLE_STREAM_TYPE     (camel_seekable_stream_get_type ())
+#define CAMEL_SEEKABLE_STREAM(obj)     (GTK_CHECK_CAST((obj), CAMEL_SEEKABLE_STREAM_TYPE, CamelSeekableStream))
+#define CAMEL_SEEKABLE_STREAM_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), CAMEL_SEEKABLE_STREAM_TYPE, CamelSeekableStreamClass))
+#define CAMEL_IS_SEEKABLE_STREAM(o)    (GTK_CHECK_TYPE((o), CAMEL_SEEKABLE_STREAM_TYPE))
+
+
+typedef enum
+{
+	CAMEL_STREAM_SET,
+	CAMEL_STREAM_CUR,
+	CAMEL_STREAM_END
+
+} CamelStreamSeekPolicy;
+
+
+typedef struct 
+{
+	CamelStream parent_object;
+	
+} CamelSeekableStream;
+
+
+
+typedef struct {
+	CamelStreamClass parent_class;
+	
+	/* Virtual methods */	
+	gint (*seek)       (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy);
+
+
+} CamelSeekableStreamClass;
+
+
+
+/* Standard Gtk function */
+GtkType camel_seekable_stream_get_type (void);
+
+
+/* public methods */
+gint     camel_stream_seek      (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CAMEL_SEEKABLE_STREAM_H */