// Created: 04/01/98
// RCS-ID: $Id$
// Copyright: (c) Guilhem Lavaux
-// Licence: wxWidgets licence
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
-#pragma implementation "mstream.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
m_i_streambuf = new wxStreamBuffer(wxStreamBuffer::read);
m_i_streambuf->SetBufferIO((void *)data, len); // const_cast
m_i_streambuf->SetIntPosition(0); // seek to start pos
- m_i_streambuf->Fixed(TRUE);
+ m_i_streambuf->Fixed(true);
+
+ m_length = len;
+}
+
+wxMemoryInputStream::wxMemoryInputStream(const wxMemoryOutputStream& stream)
+{
+ const wxFileOffset lenFile = stream.GetLength();
+ if ( lenFile == wxInvalidOffset )
+ {
+ m_i_streambuf = NULL;
+ m_lasterror = wxSTREAM_EOF;
+ return;
+ }
+ const size_t len = wx_truncate_cast(size_t, lenFile);
+ wxASSERT_MSG( len == lenFile + size_t(0), _T("huge files not supported") );
+
+ m_i_streambuf = new wxStreamBuffer(wxStreamBuffer::read);
+ m_i_streambuf->SetBufferIO(len); // create buffer
+ stream.CopyTo(m_i_streambuf->GetBufferStart(), len);
+ m_i_streambuf->SetIntPosition(0); // seek to start pos
+ m_i_streambuf->Fixed(true);
m_length = len;
}
char wxMemoryInputStream::Peek()
{
char *buf = (char *)m_i_streambuf->GetBufferStart();
+ size_t pos = m_i_streambuf->GetIntPosition();
+ if ( pos == m_length )
+ {
+ m_lasterror = wxSTREAM_READ_ERROR;
- return buf[m_i_streambuf->GetIntPosition()];
-}
+ return 0;
+ }
-bool wxMemoryInputStream::Eof() const
-{
- return !m_i_streambuf->GetBytesLeft();
+ return buf[pos];
}
size_t wxMemoryInputStream::OnSysRead(void *buffer, size_t nbytes)
return m_i_streambuf->GetIntPosition() - pos;
}
-off_t wxMemoryInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
+wxFileOffset wxMemoryInputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{
return m_i_streambuf->Seek(pos, mode);
}
-off_t wxMemoryInputStream::OnSysTell() const
+wxFileOffset wxMemoryInputStream::OnSysTell() const
{
return m_i_streambuf->Tell();
}
m_o_streambuf = new wxStreamBuffer(wxStreamBuffer::write);
if ( data )
m_o_streambuf->SetBufferIO(data, len);
- m_o_streambuf->Fixed(FALSE);
- m_o_streambuf->Flushable(FALSE);
+ m_o_streambuf->Fixed(false);
+ m_o_streambuf->Flushable(false);
}
wxMemoryOutputStream::~wxMemoryOutputStream()
return newpos - oldpos;
}
-off_t wxMemoryOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
+wxFileOffset wxMemoryOutputStream::OnSysSeek(wxFileOffset pos, wxSeekMode mode)
{
return m_o_streambuf->Seek(pos, mode);
}
-off_t wxMemoryOutputStream::OnSysTell() const
+wxFileOffset wxMemoryOutputStream::OnSysTell() const
{
return m_o_streambuf->Tell();
}