* wxMemoryStreams updates

* Various fixes about wxGTK and Unicode
* Various fixes in wxStreams


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3010 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/mstream.cpp

@@ -33,24 +33,37 @@
 wxMemoryInputStream::wxMemoryInputStream(const char *data, size_t len)
   : wxInputStream()
 {
-/*
+  m_i_streambuf = new wxStreamBuffer(wxStreamBuffer::read);
   m_i_streambuf->SetBufferIO((char*) data, (char*) (data+len));
   m_i_streambuf->SetIntPosition(0); // seek to start pos
   m_i_streambuf->Fixed(TRUE);
-*/
+
   m_length = len;
 }
 
 wxMemoryInputStream::~wxMemoryInputStream()
 {
+  delete m_i_streambuf;
 }
 
 char wxMemoryInputStream::Peek()
 {
-/*
   return m_i_streambuf->GetBufferStart()[m_i_streambuf->GetIntPosition()];
-*/
-  return 0;
+}
+
+size_t wxMemoryInputStream::OnSysRead(void *buffer, size_t nbytes)
+{
+  return m_i_streambuf->Read(buffer, nbytes);
+}
+
+off_t wxMemoryInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
+{
+  return m_i_streambuf->Seek(pos, mode);
+}
+
+off_t wxMemoryInputStream::OnSysTell() const
+{
+  return m_i_streambuf->Tell();
 }
 
 // ----------------------------------------------------------------------------
@@ -60,15 +73,31 @@ char wxMemoryInputStream::Peek()
 wxMemoryOutputStream::wxMemoryOutputStream(char *data, size_t len)
   : wxOutputStream()
 {
-/*
+  m_o_streambuf = new wxStreamBuffer(wxStreamBuffer::write);
   if (data)
     m_o_streambuf->SetBufferIO(data, data+len);
   m_o_streambuf->Fixed(TRUE);
-*/
 }
 
 wxMemoryOutputStream::~wxMemoryOutputStream()
 {
+  delete m_o_streambuf;
 }
 
+size_t wxMemoryOutputStream::OnSysWrite(const void *buffer, size_t nbytes)
+{
+  return m_o_streambuf->Write(buffer, nbytes);
+}
+
+off_t wxMemoryOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
+{
+  return m_o_streambuf->Seek(pos, mode);
+}
+
+off_t wxMemoryOutputStream::OnSysTell() const
+{
+  return m_o_streambuf->Tell();
+}
+
+
 #endif