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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2963 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/zipstream.h

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+/////////////////////////////////////////////////////////////////////////////
+// Name:        zipstream.h
+// Purpose:     wxZipInputStream for reading files from ZIP archive
+// Author:      Vaclav Slavik
+// Copyright:   (c) 1999 Vaclav Slavik
+// Licence:     wxWindows Licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef __ZIPSTREAM_H__
+#define __ZIPSTREAM_H__
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+#if wxUSE_ZLIB && wxUSE_STREAMS
+
+#include <wx/stream.h>
+
+//--------------------------------------------------------------------------------
+// wxZipInputStream
+//                  This class is input stream from ZIP archive. The archive
+//                  must be local file (accessible via FILE*)
+//--------------------------------------------------------------------------------
+
+
+class WXDLLEXPORT wxZipInputStream : public wxInputStream
+{
+    private:
+        size_t m_Size;
+        off_t m_Pos;
+        void *m_Archive;
+                // this void* is handle of archive .
+                // I'm sorry it is void and not proper type but I don't want
+                // to make unzip.h header public.
+
+    public:
+        wxZipInputStream(const wxString& archive, const wxString& file);
+                // archive is name of .zip archive, file is name of file to be extracted.
+                // Remember that archive must be local file accesible via fopen, fread functions!
+        ~wxZipInputStream();
+
+    protected:
+        virtual size_t StreamSize() const {return m_Size;}
+        virtual size_t OnSysRead(void *buffer, size_t bufsize);
+        virtual off_t OnSysSeek(off_t seek, wxSeekMode mode);
+        virtual off_t OnSysTell() const {return m_Pos;}
+};
+
+
+#endif // if use_zlib && use_streams
+
+#endif // __ZIPSTREAM_H__
+
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