// Name: common/sstream.cpp
// Purpose: string-based streams implementation
// Author: Vadim Zeitlin
-// Modified by:
+// Modified by: Ryan Norton (UTF8 UNICODE)
// Created: 2004-09-19
// RCS-ID: $Id$
// Copyright: (c) 2004 Vadim Zeitlin <vadim@wxwindows.org>
// wxStringInputStream implementation
// ============================================================================
+// ----------------------------------------------------------------------------
+// construction/destruction
+// ----------------------------------------------------------------------------
+
+wxStringInputStream::wxStringInputStream(const wxString& s)
+#if wxUSE_UNICODE
+ : m_str(s), m_buf(wxMBConvUTF8().cWX2MB(s).release()), m_len(strlen(m_buf))
+#else
+ : m_str(s), m_buf((char*)s.c_str()), m_len(s.length())
+#endif
+{
+#if wxUSE_UNICODE
+ wxASSERT_MSG(m_buf != NULL, _T("Could not convert string to UTF8!"));
+#endif
+ m_pos = 0;
+}
+
+wxStringInputStream::~wxStringInputStream()
+{
+#if wxUSE_UNICODE
+ // Note: wx[W]CharBuffer uses malloc()/free()
+ free(m_buf);
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// getlength
+// ----------------------------------------------------------------------------
+
+wxFileOffset wxStringInputStream::GetLength() const
+{
+ return m_len;
+}
+
// ----------------------------------------------------------------------------
// seek/tell
// ----------------------------------------------------------------------------
-off_t wxStringInputStream::OnSysSeek(off_t ofs, wxSeekMode mode)
+wxFileOffset wxStringInputStream::OnSysSeek(wxFileOffset ofs, wxSeekMode mode)
{
switch ( mode )
{
break;
case wxFromEnd:
- ofs += m_str.length()*sizeof(wxChar);
+ ofs += m_len;
break;
case wxFromCurrent:
return wxInvalidOffset;
}
+ if ( ofs < 0 || wx_static_cast(size_t, ofs) >= m_len )
+ return wxInvalidOffset;
+
m_pos = wx_static_cast(size_t, ofs);
return ofs;
}
-off_t wxStringInputStream::OnSysTell() const
+wxFileOffset wxStringInputStream::OnSysTell() const
{
- return wx_static_cast(off_t, m_pos);
+ return wx_static_cast(wxFileOffset, m_pos);
}
// ----------------------------------------------------------------------------
size_t wxStringInputStream::OnSysRead(void *buffer, size_t size)
{
- const size_t sizeMax = m_str.length()*sizeof(wxChar) - m_pos;
+ const size_t sizeMax = m_len - m_pos;
if ( size >= sizeMax )
{
size = sizeMax;
}
- memcpy(buffer, m_str.data() + m_pos, size);
+ memcpy(buffer, m_buf + m_pos, size);
m_pos += size;
return size;
// wxStringOutputStream implementation
// ============================================================================
+// ----------------------------------------------------------------------------
+// seek/tell
+// ----------------------------------------------------------------------------
+
+wxFileOffset wxStringOutputStream::OnSysTell() const
+{
+ return wx_static_cast(wxFileOffset, m_pos);
+}
+
// ----------------------------------------------------------------------------
// actual IO
// ----------------------------------------------------------------------------
size_t wxStringOutputStream::OnSysWrite(const void *buffer, size_t size)
{
- // in Unicode mode we might not be able to write the last byte
- size_t len = size / sizeof(wxChar);
-
- const wxChar *p = wx_static_cast(const wxChar *, buffer);
+ const char *p = wx_static_cast(const char *, buffer);
- m_str->Append(wxString(p, p + len + 1));
+ // append the input buffer (may not be null terminated - thus
+ // the literal length
+ m_str->Append(wxString(p, m_conv, size));
// return number of bytes actually written
- return len*sizeof(wxChar);
+ m_pos += size;
+
+ return size;
}
#endif // wxUSE_STREAMS