X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3cacae09fad9fee2c9cb222455e0f9aa4fa11d37..b838cfc9151aea38402ad2b1ba5d2f97cf94e973:/src/common/datstrm.cpp

diff --git a/src/common/datstrm.cpp b/src/common/datstrm.cpp
index f4ccc714a4..e0bd854d4c 100644
--- a/src/common/datstrm.cpp
+++ b/src/common/datstrm.cpp
@@ -5,7 +5,7 @@
 // Modified by:
 // Created:     28/06/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Guilhem Lavaux 
+// Copyright:   (c) Guilhem Lavaux
 // Licence:   	wxWindows license
 /////////////////////////////////////////////////////////////////////////////
 
@@ -17,22 +17,19 @@
 #include "wx/wxprec.h"
 
 #ifdef __BORLANDC__
-#pragma hdrstop
+  #pragma hdrstop
 #endif
 
-#ifndef WX_PRECOMP
-#include "wx/defs.h"
-#endif
+#if wxUSE_STREAMS
 
 #include "wx/datstrm.h"
 
-#if !USE_SHARED_LIBRARY
-IMPLEMENT_CLASS(wxDataInputStream, wxFilterInputStream)
-IMPLEMENT_CLASS(wxDataOutputStream, wxFilterOutputStream)
-#endif
+// ---------------------------------------------------------------------------
+// wxDataInputStream
+// ---------------------------------------------------------------------------
 
 wxDataInputStream::wxDataInputStream(wxInputStream& s)
-  : wxFilterInputStream(s)
+  : m_input(&s), m_be_order(FALSE)
 {
 }
 
@@ -40,43 +37,36 @@ wxDataInputStream::~wxDataInputStream()
 {
 }
 
-unsigned long wxDataInputStream::Read32()
+wxUint32 wxDataInputStream::Read32()
 {
-  char buf[4];
-
-  if (!m_istream)
-    return 0;
+  wxUint32 i32;
 
-  Read(buf, 4);
+  m_input->Read(&i32, 4);
 
-  return (unsigned long)buf[0] |
-         ((unsigned long)buf[1] << 8) |
-         ((unsigned long)buf[2] << 16) |
-         ((unsigned long)buf[3] << 24);
+  if (m_be_order)
+    return wxUINT32_SWAP_ON_LE(i32);
+  else
+    return wxUINT32_SWAP_ON_BE(i32);
 }
 
-unsigned short wxDataInputStream::Read16()
+wxUint16 wxDataInputStream::Read16()
 {
-  char buf[2];
+  wxUint16 i16;
 
-  if (!m_istream)
-    return 0;
+  m_input->Read(&i16, 2);
 
-  Read(buf, 2);
-
-  return (unsigned short)buf[0] |
-         ((unsigned short)buf[1] << 8);
+  if (m_be_order)
+    return wxUINT16_SWAP_ON_LE(i16);
+  else
+    return wxUINT16_SWAP_ON_BE(i16);
 }
 
-unsigned char wxDataInputStream::Read8()
+wxUint8 wxDataInputStream::Read8()
 {
-  char buf;
-
-  if (!m_istream)
-    return 0;
+  wxUint8 buf;
 
-  Read(&buf, 1);
-  return (unsigned char)buf;
+  m_input->Read(&buf, 1);
+  return (wxUint8)buf;
 }
 
 // Must be at global scope for VC++ 5
@@ -84,111 +74,142 @@ extern "C" double ConvertFromIeeeExtended(const unsigned char *bytes);
 
 double wxDataInputStream::ReadDouble()
 {
-#if USE_APPLE_IEEE
+#if wxUSE_APPLE_IEEE
   char buf[10];
 
-  if (!m_istream)
-    return 0.0;
-
-  Read(buf, 10);
+  m_input->Read(buf, 10);
   return ConvertFromIeeeExtended((unsigned char *)buf);
 #else
   return 0.0;
 #endif
 }
 
-wxString wxDataInputStream::ReadLine()
+wxString wxDataInputStream::ReadString()
 {
-  char i_strg[255];
+  size_t len;
 
-  if (!m_istream)
-    return "";
+  len = Read32();
 
-  // TODO: Implement ReadLine
-  return i_strg;
+  if (len > 0)
+  {
+#if wxUSE_UNICODE
+    char *tmp = new char[len + 1];
+    m_input->Read(tmp, len);
+    tmp[len] = 0;
+    wxString s(tmp);
+    delete[] tmp;
+#else
+    wxString s;
+    m_input->Read(s.GetWriteBuf(len), len);
+    s.UngetWriteBuf();
+#endif
+    return s;
+  }
+  else
+    return wxEmptyString;
 }
 
-wxString wxDataInputStream::ReadString()
+wxDataInputStream& wxDataInputStream::operator>>(wxString& s)
 {
-  wxString wx_string;
-  char *string;
-  unsigned long len;
-
-  if (!m_istream)
-    return "";
-
-  len = Read32();
-  string = new char[len+1];
+  s = ReadString();
+  return *this;
+}
 
-  Read(string, len);
+wxDataInputStream& wxDataInputStream::operator>>(wxInt8& c)
+{
+  c = (wxInt8)Read8();
+  return *this;
+}
 
-  string[len] = 0;
-  wx_string = string;
-  delete string;
+wxDataInputStream& wxDataInputStream::operator>>(wxInt16& i)
+{
+  i = (wxInt16)Read16();
+  return *this;
+}
 
-  return wx_string; 
+wxDataInputStream& wxDataInputStream::operator>>(wxInt32& i)
+{
+  i = (wxInt32)Read32();
+  return *this;
 }
 
-wxDataOutputStream::wxDataOutputStream(wxOutputStream& s)
- : wxFilterOutputStream(s)
+wxDataInputStream& wxDataInputStream::operator>>(wxUint8& c)
 {
+  c = Read8();
+  return *this;
 }
 
-void wxDataOutputStream::Write32(unsigned long i)
+wxDataInputStream& wxDataInputStream::operator>>(wxUint16& i)
 {
-  char buf[4];
+  i = Read16();
+  return *this;
+}
 
-  if (!m_ostream)
-    return;
+wxDataInputStream& wxDataInputStream::operator>>(wxUint32& i)
+{
+  i = Read32();
+  return *this;
+}
 
-  buf[0] = i & 0xff;
-  buf[1] = (i >> 8) & 0xff;
-  buf[2] = (i >> 16) & 0xff;
-  buf[3] = (i >> 24) & 0xff;
-  Write(buf, 4);
+wxDataInputStream& wxDataInputStream::operator>>(double& i)
+{
+  i = ReadDouble();
+  return *this;
 }
 
-void wxDataOutputStream::Write16(unsigned short i)
+wxDataInputStream& wxDataInputStream::operator>>(float& f)
 {
-  char buf[2];
+  f = (float)ReadDouble();
+  return *this;
+}
+
+// ---------------------------------------------------------------------------
+// wxDataOutputStream
+// ---------------------------------------------------------------------------
 
-  if (!m_ostream)
-    return;
+wxDataOutputStream::wxDataOutputStream(wxOutputStream& s)
+  : m_output(&s), m_be_order(FALSE)
+{
+}
 
-  buf[0] = i & 0xff;
-  buf[1] = (i >> 8) & 0xff;
-  Write(buf, 2);
+wxDataOutputStream::~wxDataOutputStream()
+{
 }
 
-void wxDataOutputStream::Write8(unsigned char i)
+void wxDataOutputStream::Write32(wxUint32 i)
 {
-  if (!m_ostream)
-    return;
+  wxUint32 i32;
 
-  Write(&i, 1);
+  if (m_be_order)
+    i32 = wxUINT32_SWAP_ON_LE(i);
+  else
+    i32 = wxUINT32_SWAP_ON_BE(i);
+  m_output->Write(&i32, 4);
 }
 
-void wxDataOutputStream::WriteLine(const wxString& line)
+void wxDataOutputStream::Write16(wxUint16 i)
 {
-#ifdef __WXMSW__
-  wxString tmp_string = line + "\r\n";
-#else
-  wxString tmp_string = line + '\n';
-#endif
+  wxUint16 i16;
 
-  if (!m_ostream)
-    return;
+  if (m_be_order)
+    i16 = wxUINT16_SWAP_ON_LE(i);
+  else
+    i16 = wxUINT16_SWAP_ON_BE(i);
 
-  Write((const char *) tmp_string, tmp_string.Length());
+  m_output->Write(&i16, 2);
 }
 
-void wxDataOutputStream::WriteString(const wxString& string)
+void wxDataOutputStream::Write8(wxUint8 i)
 {
-  if (!m_ostream)
-    return;
+  m_output->Write(&i, 1);
+}
 
-  Write32(string.Length());
-  Write((const char *) string, string.Length());
+void wxDataOutputStream::WriteString(const wxString& string)
+{
+  const wxWX2MBbuf buf = string.mb_str();
+  Write32(string.Len());
+  if (string.Len() > 0)
+      m_output->Write(buf, string.Len());
 }
 
 // Must be at global scope for VC++ 5
@@ -198,14 +219,78 @@ void wxDataOutputStream::WriteDouble(double d)
 {
   char buf[10];
 
-  if (!m_ostream)
-    return;
-
-#if USE_APPLE_IEEE
+#if wxUSE_APPLE_IEEE
   ConvertToIeeeExtended(d, (unsigned char *)buf);
 #else
-#	pragma warning "wxDataStream::WriteDouble() not using IeeeExtended - will not work!"
- buf[0] = '\0';
+#ifndef __VMS__
+# pragma warning "wxDataOutputStream::WriteDouble() not using IeeeExtended - will not work!"
+#endif
+   buf[0] = '\0';
 #endif
-  Write(buf, 10);
+  m_output->Write(buf, 10);
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(const wxChar *string)
+{
+  Write32(wxStrlen(string));
+  m_output->Write((const char *)string, wxStrlen(string)*sizeof(wxChar));
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(const wxString& string)
+{
+  WriteString(string);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxInt8 c)
+{
+  Write8((wxUint8)c);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxInt16 i)
+{
+  Write16((wxUint16)i);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxInt32 i)
+{
+  Write32((wxUint32)i);
+  return *this;
 }
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxUint8 c)
+{
+  Write8(c);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxUint16 i)
+{
+  Write16(i);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(wxUint32 i)
+{
+  Write32(i);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(double f)
+{
+  WriteDouble(f);
+  return *this;
+}
+
+wxDataOutputStream& wxDataOutputStream::operator<<(float f)
+{
+  WriteDouble((double)f);
+  return *this;
+}
+
+#endif
+  // wxUSE_STREAMS
+