1 files changed, 66 insertions, 0 deletions
diff --git a/src/streams-gzip.h b/src/streams-gzip.h
new file mode 100644
index 000000000..ace1b884d
--- /dev/null
+++ b/src/streams-gzip.h
@@ -0,0 +1,66 @@
+/*
+ * IO layer : gzip streambuf and streams
+ *
+ * Authors:
+ *   Johan Ceuppens <jceuppen at easynet dot be>
+ *
+ * Copyright (C) 2004 Johan Ceuppens
+ *
+ * Released under GNU LGPL, read the file 'COPYING.LIB' for more information
+ */
+
+#ifndef __STREAMS_GZIP_H_
+#define __STREAMS_GZIP_H_
+
+#include "streams-zlib.h"
+
+namespace Inkscape {
+
+class GZipHeaderException : public ZlibBufferException
+{
+public:
+    const char *what() const throw() { return "Invalid gzip file"; }
+};
+
+/**
+ * GZipBuffer
+ */
+
+class GZipBuffer : public ZlibBuffer
+{
+public:
+    
+    GZipBuffer(URIHandle& urih) //throws GZipHeaderException
+	: ZlibBuffer(urih)
+    { consume_header(); } 
+    ~GZipBuffer() {}
+    
+private:
+    
+    void consume_header() throw(GZipHeaderException);
+    void check_signature(guint8 *data) throw(GZipHeaderException);
+    void check_flags(guint8 *data) throw(GZipHeaderException);
+    gchar *get_filename();
+    gchar *get_comment();
+    guint16 get_crc();
+    void get_extrafield();
+    gchar *read_string() throw(GZipHeaderException);
+    
+    GZipBuffer& operator=(GZipBuffer const& rhs);
+    GZipBuffer(GZipBuffer const& rhs);
+
+};
+
+} // namespace Inkscape
+#endif // header guard
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :