* Added wxMMedia in the repository so people interrested in it can work on it

[wxWidgets.git] / utils / wxMMedia / mmfile.cpp

diff --git a/utils/wxMMedia/mmfile.cpp b/utils/wxMMedia/mmfile.cpp
new file mode 100644 (file)
index 0000000..fa57adf
--- /dev/null
+++ b/utils/wxMMedia/mmfile.cpp
@@ -0,0 +1,194 @@
+////////////////////////////////////////////////////////////////////////////////
+// Name:       mmfile.cpp
+// Purpose:    wxMMedia
+// Author:     Guilhem Lavaux
+// Created:    1997
+// Updated:    1998
+// Copyright:  (C) 1997, 1998, Guilhem Lavaux
+// License:    wxWindows license
+////////////////////////////////////////////////////////////////////////////////
+#ifdef __GNUG__
+#pragma implementation
+#endif
+#ifdef WX_PRECOMP
+#include "wx_prec.h"
+#else
+#include "wx/wx.h"
+#endif
+#include <wx/stream.h>
+#include <wx/fstream.h>
+#include <wx/mstream.h>
+
+#include "mmfile.h"
+
+#ifdef __BORLANDC__
+#pragma hdrstop
+#endif
+
+wxMMediaFile::wxMMediaFile()
+  : m_istream(NULL), m_i_temp(NULL), m_ostream(NULL), m_o_temp(NULL),
+    m_tmpfname((char *)NULL), m_mfname((char *)NULL),
+    m_seekable(FALSE)
+{
+}
+
+wxMMediaFile::wxMMediaFile(wxOutputStream& os, bool seekable)
+  : m_istream(NULL), m_i_temp(NULL), m_ostream(&os), m_o_temp(NULL),
+    m_tmpfname((char *)NULL), m_mfname((char *)NULL),
+    m_seekable(seekable)
+{
+}
+
+wxMMediaFile::wxMMediaFile(wxInputStream& is, bool preload, bool seekable)
+  : m_istream(&is), m_i_temp(NULL), m_ostream(NULL), m_o_temp(NULL),
+    m_tmpfname((char *)NULL), m_mfname((char *)NULL),
+    m_seekable(seekable)
+{
+/*
+  if (preload) {
+    wxMemoryStream *tmpstream = new wxMemoryStream();
+
+    m_o_temp = tmpstream;
+    m_i_temp = tmpstream;
+
+    m_o_temp->Write(is);
+  }
+*/
+}
+
+wxMMediaFile::wxMMediaFile(const wxString& fname)
+  : m_istream(NULL), m_i_temp(NULL), m_ostream(NULL), m_o_temp(NULL),
+    m_tmpfname((char *)NULL), m_mfname(fname),
+    m_seekable(TRUE)
+{
+  wxFileStream *s = new wxFileStream(fname);
+
+  m_mfname = fname;
+  m_istream = s;
+  m_ostream = s;
+}
+
+void wxMMediaFile::SetFile(wxInputStream& str, bool preload, bool seekable)
+{
+  CleanUpPrevious();
+  m_istream = &str;
+  m_ostream = NULL;
+  m_seekable = seekable;
+
+/*
+  if (preload) {
+    wxMemoryStream *tmpstream = new wxMemoryStream();
+
+    m_i_temp = tmpstream;
+    m_o_temp = tmpstream;
+
+    m_o_temp->Write(str);
+  }
+*/
+}
+
+void wxMMediaFile::SetFile(wxOutputStream& str, bool seekable)
+{
+  CleanUpPrevious();
+  m_ostream = &str;
+  m_istream = NULL;
+  m_seekable = seekable;
+}
+
+void wxMMediaFile::SetFile(const wxString& fname)
+{
+  CleanUpPrevious();
+
+  m_mfname = fname;
+  wxFileStream *f = new wxFileStream(fname);
+
+  SetFile(*f, FALSE, TRUE);
+}
+
+void wxMMediaFile::CleanUpPrevious()
+{
+  if (m_i_temp) {
+    m_i_temp->SeekI(0);
+
+    if (m_ostream)
+      m_ostream->Write(*m_i_temp);
+
+    delete m_i_temp; // Only one delete because m_tmpo* and m_tmpi* are linked
+
+    if (m_tmpfname)
+      wxRemoveFile(m_tmpfname);
+  }
+
+  if (!m_mfname.IsNull() && m_mfname != "")
+    delete m_istream;
+
+  m_i_temp = NULL;
+  m_o_temp = NULL;
+  m_istream = NULL;
+  m_ostream = NULL;
+}
+
+wxMMediaFile::~wxMMediaFile()
+{
+  CleanUpPrevious();
+}
+
+wxMMtime wxMMediaFile::GetLength()
+{
+  wxMMtime mm_time = {-1, 0, 0};
+  return mm_time;
+}
+
+wxMMtime wxMMediaFile::GetPosition()
+{
+  wxMMtime mm_time = {0, 0, 0};
+  return mm_time;
+}
+
+wxInputStream *wxMMediaFile::GetIRawData()
+{
+  if (!m_istream)
+    return NULL;
+
+  if (!m_seekable && !m_i_temp)
+    CacheIO();
+
+  return (m_i_temp) ? m_i_temp : m_istream;
+}
+
+wxOutputStream *wxMMediaFile::GetORawData()
+{
+  if (!m_ostream)
+    return NULL;
+
+  if (!m_seekable && !m_i_temp)
+    CacheIO();
+
+  return (m_o_temp) ? m_o_temp : m_ostream;
+}
+
+wxString wxMMediaFile::GetCurrentFile()
+{
+  if (!m_istream && !m_ostream)
+    return wxString((char *)NULL);
+
+  if (!m_mfname && !m_i_temp) 
+    CacheIO();
+
+  return (!m_tmpfname.IsEmpty()) ? m_tmpfname : m_mfname;
+}
+
+void wxMMediaFile::CacheIO()
+{
+  if ((!m_istream && !m_ostream) || m_i_temp)
+    return;
+
+  m_tmpfname = wxGetTempFileName("mmd");
+
+  wxFileStream *tmpstream = new wxFileStream(m_tmpfname);
+  m_i_temp = tmpstream;
+  m_o_temp = tmpstream;
+
+  if (m_istream)
+    tmpstream->wxOutputStream::Write(*m_istream);
+}