1 files changed, 122 insertions, 0 deletions
diff --git a/src/io/base64stream.h b/src/io/base64stream.h
new file mode 100644
index 000000000..7bfe73e5f
--- /dev/null
+++ b/src/io/base64stream.h
@@ -0,0 +1,122 @@
+#ifndef __INKSCAPE_IO_BASE64STREAM_H__
+#define __INKSCAPE_IO_BASE64STREAM_H__
+
+/**
+ * Base64-enabled input and output streams
+ *
+ * This class allows easy encoding and decoding
+ * of Base64 data with a stream interface, hiding
+ * the implementation from the user.
+ *
+ * Authors:
+ *   Bob Jamison <rjamison@titan.com>
+ *
+ * Copyright (C) 2004 Inkscape.org
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+
+#include "inkscapestream.h"
+
+
+
+namespace Inkscape
+{
+namespace IO
+{
+
+//#########################################################################
+//# B A S E 6 4     I N P U T    S T R E A M
+//#########################################################################
+
+/**
+ * This class is for decoding a Base-64 encoded InputStream source
+ *
+ */
+class Base64InputStream : public BasicInputStream
+{
+
+public:
+
+    Base64InputStream(InputStream &sourceStream);
+    
+    virtual ~Base64InputStream();
+    
+    virtual int available();
+    
+    virtual void close();
+    
+    virtual int get();
+    
+private:
+
+    int outBytes[3];
+
+    int outCount;
+
+    int padCount;
+
+    bool done;
+
+}; // class Base64InputStream
+
+
+
+
+//#########################################################################
+//# B A S E 6 4   O U T P U T    S T R E A M
+//#########################################################################
+
+/**
+ * This class is for Base-64 encoding data going to the
+ * destination OutputStream
+ *
+ */
+class Base64OutputStream : public BasicOutputStream
+{
+
+public:
+
+    Base64OutputStream(OutputStream &destinationStream);
+    
+    virtual ~Base64OutputStream();
+    
+    virtual void close();
+    
+    virtual void flush();
+    
+    virtual void put(int ch);
+
+    /**
+     * Sets the maximum line length for base64 output.  If
+     * set to <=0, then there will be no line breaks;
+     */
+    virtual void setColumnWidth(int val)
+        { columnWidth = val; }
+
+private:
+
+    void putCh(int ch);
+
+    int column;
+
+    int columnWidth;
+
+    unsigned long outBuf;
+
+    int bitCount;
+
+}; // class Base64OutputStream
+
+
+
+
+
+
+
+} // namespace IO
+} // namespace Inkscape
+
+
+#endif /* __INKSCAPE_IO_BASE64STREAM_H__ */