Delay checking for the requested sash position until the first

[wxWidgets.git] / src / common / wfstream.cpp

diff --git a/src/common/wfstream.cpp b/src/common/wfstream.cpp
index b43ddb3fba3cddc29897d8278995081f8774fb98..086022626645255f96ddbeedaef1c3d30c3f02d9 100644 (file)
--- a/src/common/wfstream.cpp
+++ b/src/common/wfstream.cpp
@@ -5,11 +5,11 @@
 // Modified by:
 // Created:     11/07/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Guilhem Lavaux 
-// Licence:     wxWindows license
+// Copyright:   (c) Guilhem Lavaux
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
 #pragma implementation "wfstream.h"
 #endif
 
@@ -33,64 +33,74 @@
 wxFileInputStream::wxFileInputStream(const wxString& fileName)
   : wxInputStream()
 {
-  m_file = new wxFile(fileName, wxFile::read);
-  m_file_destroy = TRUE;
+    m_file = new wxFile(fileName, wxFile::read);
+    m_file_destroy = TRUE;
 }
 
 wxFileInputStream::wxFileInputStream()
   : wxInputStream()
 {
-  m_file_destroy = FALSE;
-  m_file = NULL;
+    m_file_destroy = FALSE;
+    m_file = NULL;
 }
 
 wxFileInputStream::wxFileInputStream(wxFile& file)
 {
-  m_file = &file;
-  m_file_destroy = FALSE;
+    m_file = &file;
+    m_file_destroy = FALSE;
 }
 
 wxFileInputStream::wxFileInputStream(int fd)
 {
-  m_file = new wxFile(fd);
-  m_file_destroy = TRUE;
+    m_file = new wxFile(fd);
+    m_file_destroy = TRUE;
 }
 
 wxFileInputStream::~wxFileInputStream()
 {
-  if (m_file_destroy)
-    delete m_file;
+    if (m_file_destroy)
+        delete m_file;
 }
 
 size_t wxFileInputStream::GetSize() const
 {
-  return m_file->Length();
+    return m_file->Length();
 }
 
 size_t wxFileInputStream::OnSysRead(void *buffer, size_t size)
 {
-  off_t ret;
+    off_t ret = m_file->Read(buffer, size);
 
-  ret = m_file->Read(buffer, size);
+    // NB: we can't use a switch here because HP-UX CC doesn't allow
+    //     switching over long long (which off_t is in 64bit mode)
 
-  if (m_file->Eof())
-    m_lasterror = wxStream_EOF;
-  if (ret == wxInvalidOffset) {
-    m_lasterror = wxStream_READ_ERR;
-    ret = 0;
-  } 
+    if ( !ret )
+    {
+        // nothing read, so nothing more to read
+        m_lasterror = wxSTREAM_EOF;
+    }
+    else if ( ret == wxInvalidOffset )
+    {
+        m_lasterror = wxSTREAM_READ_ERROR;
+        ret = 0;
+    }
+    else
+    {
+        // normal case
+        m_lasterror = wxSTREAM_NO_ERROR;
+    }
 
-  return ret;
+    return ret;
 }
 
 off_t wxFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 {
-  return m_file->Seek(pos, mode);
+    return m_file->Seek(pos, mode);
 }
 
 off_t wxFileInputStream::OnSysTell() const
 {
-  return m_file->Tell();
+    return m_file->Tell();
 }
 
 // ----------------------------------------------------------------------------
@@ -99,74 +109,86 @@ off_t wxFileInputStream::OnSysTell() const
 
 wxFileOutputStream::wxFileOutputStream(const wxString& fileName)
 {
-  m_file = new wxFile(fileName, wxFile::write);
-  m_file_destroy = TRUE;
+    m_file = new wxFile(fileName, wxFile::write);
+    m_file_destroy = TRUE;
+
+    if (!m_file->IsOpened())
+    {
+        m_lasterror = wxSTREAM_WRITE_ERROR;
+    }
+    else
+    {
+        if (m_file->Error())
+            m_lasterror = wxSTREAM_WRITE_ERROR;
+    }
 }
 
 wxFileOutputStream::wxFileOutputStream(wxFile& file)
 {
-  m_file = &file;
-  m_file_destroy = FALSE;
+    m_file = &file;
+    m_file_destroy = FALSE;
 }
 
 wxFileOutputStream::wxFileOutputStream()
-  : wxOutputStream()
+                  : wxOutputStream()
 {
-  m_file_destroy = FALSE;
-  m_file = NULL;
+    m_file_destroy = FALSE;
+    m_file = NULL;
 }
 
 wxFileOutputStream::wxFileOutputStream(int fd)
 {
-  m_file = new wxFile(fd);
-  m_file_destroy = TRUE;
+    m_file = new wxFile(fd);
+    m_file_destroy = TRUE;
 }
 
 wxFileOutputStream::~wxFileOutputStream()
 {
-  if (m_file_destroy) {
-    Sync();
-    delete m_file;
-  }
+    if (m_file_destroy)
+    {
+        Sync();
+        delete m_file;
+    }
 }
 
 size_t wxFileOutputStream::OnSysWrite(const void *buffer, size_t size)
 {
-  size_t ret = m_file->Write(buffer, size);
-  if (m_file->Error())
-    m_lasterror = wxStream_WRITE_ERR;
-  else
-    m_lasterror = wxStream_NOERROR;
-  return ret;
+    size_t ret = m_file->Write(buffer, size);
+
+    m_lasterror = m_file->Error() ? wxSTREAM_WRITE_ERROR : wxSTREAM_NO_ERROR;
+
+    return ret;
 }
 
 off_t wxFileOutputStream::OnSysTell() const
 {
-  return m_file->Tell();
+    return m_file->Tell();
 }
 
 off_t wxFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 {
-  return m_file->Seek(pos, mode);
+    return m_file->Seek(pos, mode);
 }
 
 void wxFileOutputStream::Sync()
 {
-  wxOutputStream::Sync();
-  m_file->Flush();
+    wxOutputStream::Sync();
+    m_file->Flush();
 }
 
 size_t wxFileOutputStream::GetSize() const
 {
-  return m_file->Length();
+    return m_file->Length();
 }
 
 // ----------------------------------------------------------------------------
 // wxFileStream
 // ----------------------------------------------------------------------------
+
 wxFileStream::wxFileStream(const wxString& fileName)
- : wxFileInputStream(fileName), wxFileOutputStream(*wxFileInputStream::m_file)
+            : wxFileInputStream(fileName)
 {
+    wxFileOutputStream::m_file = wxFileInputStream::m_file;
 }
 
 // ----------------------------------------------------------------------------
@@ -176,64 +198,65 @@ wxFileStream::wxFileStream(const wxString& fileName)
 wxFFileInputStream::wxFFileInputStream(const wxString& fileName)
   : wxInputStream()
 {
-  m_file = new wxFFile(fileName, "r");
-  m_file_destroy = TRUE;
+    m_file = new wxFFile(fileName, _T("rb"));
+    m_file_destroy = TRUE;
 }
 
 wxFFileInputStream::wxFFileInputStream()
   : wxInputStream()
 {
-  m_file_destroy = FALSE;
-  m_file = NULL;
+    m_file_destroy = FALSE;
+    m_file = NULL;
 }
 
 wxFFileInputStream::wxFFileInputStream(wxFFile& file)
 {
-  m_file = &file;
-  m_file_destroy = FALSE;
+    m_file = &file;
+    m_file_destroy = FALSE;
 }
 
 wxFFileInputStream::wxFFileInputStream(FILE *file)
 {
-  m_file = new wxFFile(file);
-  m_file_destroy = TRUE;
+    m_file = new wxFFile(file);
+    m_file_destroy = TRUE;
 }
 
 wxFFileInputStream::~wxFFileInputStream()
 {
-  if (m_file_destroy)
-    delete m_file;
+    if (m_file_destroy)
+        delete m_file;
 }
 
 size_t wxFFileInputStream::GetSize() const
 {
-  return m_file->Length();
+    return m_file->Length();
 }
 
 size_t wxFFileInputStream::OnSysRead(void *buffer, size_t size)
 {
-  off_t ret;
+    off_t ret;
 
-  ret = m_file->Read(buffer, size);
+    ret = m_file->Read(buffer, size);
 
-  if (m_file->Eof())
-    m_lasterror = wxStream_EOF;
-  if (ret == wxInvalidOffset) {
-    m_lasterror = wxStream_READ_ERR;
-    ret = 0;
-  } 
+    if (m_file->Eof())
+        m_lasterror = wxSTREAM_EOF;
+    if (ret == wxInvalidOffset)
+    {
+        m_lasterror = wxSTREAM_READ_ERROR;
+        ret = 0;
+    }
 
-  return ret;
+    return ret;
 }
 
 off_t wxFFileInputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 {
-  return m_file->Seek(pos, mode);
+    return ( m_file->Seek(pos, mode) ? pos : wxInvalidOffset );
 }
 
 off_t wxFFileInputStream::OnSysTell() const
 {
-  return m_file->Tell();
+    return m_file->Tell();
 }
 
 // ----------------------------------------------------------------------------
@@ -242,75 +265,89 @@ off_t wxFFileInputStream::OnSysTell() const
 
 wxFFileOutputStream::wxFFileOutputStream(const wxString& fileName)
 {
-  m_file = new wxFFile(fileName, "w+");
-  m_file_destroy = TRUE;
+    m_file = new wxFFile(fileName, _T("w+b"));
+    m_file_destroy = TRUE;
+
+    if (!m_file->IsOpened())
+    {
+        m_lasterror = wxSTREAM_WRITE_ERROR;
+    }
+    else
+    {
+        if (m_file->Error())
+            m_lasterror = wxSTREAM_WRITE_ERROR;
+    }
 }
 
 wxFFileOutputStream::wxFFileOutputStream(wxFFile& file)
 {
-  m_file = &file;
-  m_file_destroy = FALSE;
+    m_file = &file;
+    m_file_destroy = FALSE;
 }
 
 wxFFileOutputStream::wxFFileOutputStream()
   : wxOutputStream()
 {
-  m_file_destroy = FALSE;
-  m_file = NULL;
+    m_file_destroy = FALSE;
+    m_file = NULL;
 }
 
 wxFFileOutputStream::wxFFileOutputStream(FILE *file)
 {
-  m_file = new wxFFile(file);
-  m_file_destroy = TRUE;
+    m_file = new wxFFile(file);
+    m_file_destroy = TRUE;
 }
 
 wxFFileOutputStream::~wxFFileOutputStream()
 {
-  if (m_file_destroy) {
-    Sync();
-    delete m_file;
-  }
+    if (m_file_destroy)
+    {
+        Sync();
+        delete m_file;
+    }
 }
 
 size_t wxFFileOutputStream::OnSysWrite(const void *buffer, size_t size)
 {
-  size_t ret = m_file->Write(buffer, size);
-  if (m_file->Error())
-    m_lasterror = wxStream_WRITE_ERR;
-  else
-    m_lasterror = wxStream_NOERROR;
-  return ret;
+    size_t ret = m_file->Write(buffer, size);
+    if (m_file->Error())
+        m_lasterror = wxSTREAM_WRITE_ERROR;
+    else
+        m_lasterror = wxSTREAM_NO_ERROR;
+    return ret;
 }
 
 off_t wxFFileOutputStream::OnSysTell() const
 {
-  return m_file->Tell();
+    return m_file->Tell();
 }
 
 off_t wxFFileOutputStream::OnSysSeek(off_t pos, wxSeekMode mode)
 {
-  return m_file->Seek(pos, mode);
+    return ( m_file->Seek(pos, mode) ? pos : wxInvalidOffset );
 }
 
 void wxFFileOutputStream::Sync()
 {
-  wxOutputStream::Sync();
-  m_file->Flush();
+    wxOutputStream::Sync();
+    m_file->Flush();
 }
 
 size_t wxFFileOutputStream::GetSize() const
 {
-  return m_file->Length();
+    return m_file->Length();
 }
 
 // ----------------------------------------------------------------------------
 // wxFFileStream
 // ----------------------------------------------------------------------------
+
 wxFFileStream::wxFFileStream(const wxString& fileName)
- : wxFFileInputStream(fileName), wxFFileOutputStream(*wxFFileInputStream::m_file)
+             : wxFFileInputStream(fileName)
 {
+    wxFFileOutputStream::m_file = wxFFileInputStream::m_file;
 }
+
 #endif
   // wxUSE_STREAMS && wxUSE_FILE