src/common/stream.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        stream.cpp
   3 // Purpose:     wxStream base classes
   4 // Author:      Guilhem Lavaux
   5 // Modified by:
   6 // Created:     11/07/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Guilhem Lavaux
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "stream.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/setup.h"
  25 #endif
  26
  27 #include "wx/object.h"
  28 #include "wx/stream.h"
  29
  30 #if !USE_SHARED_LIBRARY
  31 IMPLEMENT_ABSTRACT_CLASS(wxInputStream, wxObject)
  32 IMPLEMENT_ABSTRACT_CLASS(wxOutputStream, wxObject)
  33 IMPLEMENT_ABSTRACT_CLASS2(wxStream, wxInputStream, wxOutputStream)
  34 IMPLEMENT_CLASS(wxFilterInputStream, wxInputStream)
  35 #endif
  36
  37 wxInputStream::wxInputStream()
  38   : wxObject()
  39 {
  40 }
  41
  42 wxInputStream::~wxInputStream()
  43 {
  44 }
  45
  46 #define BUF_TEMP_SIZE 10000
  47
  48 wxInputStream& wxInputStream::Read(wxOutputStream& stream_out)
  49 {
  50   char buf[BUF_TEMP_SIZE];
  51   size_t bytes_read = BUF_TEMP_SIZE;
  52
  53   while (bytes_read == BUF_TEMP_SIZE && !stream_out.Bad()) {
  54     bytes_read = Read(buf, bytes_read).LastRead();
  55
  56     stream_out.Write(buf, bytes_read);
  57   }
  58   return *this;
  59 }
  60
  61 wxOutputStream::wxOutputStream()
  62   : wxObject()
  63 {
  64 }
  65
  66 wxOutputStream::~wxOutputStream()
  67 {
  68 }
  69
  70 wxOutputStream& wxOutputStream::Write(wxInputStream& stream_in)
  71 {
  72    stream_in.Read(*this);
  73    return *this;
  74 }
  75
  76 wxFilterInputStream::wxFilterInputStream(wxInputStream& stream)
  77   : wxInputStream()
  78 {
  79   m_parent_i_stream = &stream;
  80 }
  81
  82 wxFilterInputStream::~wxFilterInputStream()
  83 {
  84 }
  85
  86 wxFilterOutputStream::wxFilterOutputStream(wxOutputStream& stream)
  87   : wxOutputStream()
  88 {
  89   m_parent_o_stream = &stream;
  90 }
  91
  92 wxFilterOutputStream::~wxFilterOutputStream()
  93 {
  94 }