More work on streams

1 files changed, 48 insertions, 0 deletions

diff --git a/src/common/resources/inputstreambuffer.h b/src/common/resources/inputstreambuffer.h
new file mode 100644
index 0000000..93cb43c
--- /dev/null
+++ b/src/common/resources/inputstreambuffer.h
@@ -0,0 +1,48 @@
+// * This file is part of the COLOBOT source code
+// * Copyright (C) 2014 Polish Portal of Colobot (PPC)
+// *
+// * 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 3 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, see  http://www.gnu.org/licenses/.
+
+#pragma once
+
+#include <streambuf>
+#include <string>
+#include <physfs.h>
+
+class CInputStreamBuffer : public std::streambuf
+{
+public:
+    CInputStreamBuffer(size_t buffer_size = 512);
+    virtual ~CInputStreamBuffer();
+    
+    void open(const std::string &filename);
+    void close();
+    bool is_open();
+    size_t size();
+
+private:
+    int_type underflow();
+
+    std::streampos seekpos(std::streampos sp, std::ios_base::openmode which);
+    std::streampos seekoff(std::streamoff off, std::ios_base::seekdir way, std::ios_base::openmode which);
+
+    // copy ctor and assignment not implemented;
+    // copying not allowed
+    CInputStreamBuffer(const CInputStreamBuffer &);
+    CInputStreamBuffer &operator= (const CInputStreamBuffer &);
+    
+    PHYSFS_File *m_file;
+    char *m_buffer;
+    size_t m_buffer_size;
+};