include/wx/msgout.h

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/msgout.h
   3 // Purpose:     wxMessageOutput class. Shows a message to the user
   4 // Author:      Mattia Barbon
   5 // Modified by:
   6 // Created:     17.07.02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Mattia Barbon
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_MSGOUT_H_
  13 #define _WX_MSGOUT_H_
  14
  15 // ----------------------------------------------------------------------------
  16 // headers
  17 // ----------------------------------------------------------------------------
  18
  19 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) && !defined(__EMX__)
  20 // Some older compilers (such as EMX) cannot handle
  21 // #pragma interface/implementation correctly, iff
  22 // #pragma implementation is used in _two_ translation
  23 // units (as created by e.g. event.cpp compiled for
  24 // libwx_base and event.cpp compiled for libwx_gui_core).
  25 // So we must not use those pragmas for those compilers in
  26 // such files.
  27     #pragma interface "msgout.h"
  28 #endif
  29
  30 #include "wx/defs.h"
  31 #include "wx/wxchar.h"
  32
  33 // ----------------------------------------------------------------------------
  34 // wxMessageOutput is a class abstracting formatted output target, i.e.
  35 // something you can printf() to
  36 // ----------------------------------------------------------------------------
  37
  38 class WXDLLIMPEXP_BASE wxMessageOutput
  39 {
  40 public:
  41     virtual ~wxMessageOutput() { }
  42
  43     // show a message to the user
  44     virtual void Printf(const wxChar* format, ...)  ATTRIBUTE_PRINTF_2 = 0;
  45
  46     // gets the current wxMessageOutput object
  47     static wxMessageOutput* Get();
  48
  49     // sets the global wxMessageOutput instance; returns the previous one
  50     static wxMessageOutput* Set(wxMessageOutput* msgout);
  51
  52 private:
  53     static wxMessageOutput* ms_msgOut;
  54 };
  55
  56 // ----------------------------------------------------------------------------
  57 // implementation which sends output to stderr
  58 // ----------------------------------------------------------------------------
  59
  60 class WXDLLIMPEXP_BASE wxMessageOutputStderr : public wxMessageOutput
  61 {
  62 public:
  63     wxMessageOutputStderr() { }
  64
  65     virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
  66 };
  67
  68 // ----------------------------------------------------------------------------
  69 // implementation which shows output in a message box
  70 // ----------------------------------------------------------------------------
  71
  72 #if wxUSE_GUI
  73
  74 class WXDLLIMPEXP_CORE wxMessageOutputMessageBox : public wxMessageOutput
  75 {
  76 public:
  77     wxMessageOutputMessageBox() { }
  78
  79     virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
  80 };
  81
  82 #endif // wxUSE_GUI
  83
  84 // ----------------------------------------------------------------------------
  85 // implementation using the native way of outputting debug messages
  86 // ----------------------------------------------------------------------------
  87
  88 class WXDLLIMPEXP_BASE wxMessageOutputDebug : public wxMessageOutput
  89 {
  90 public:
  91     wxMessageOutputDebug() { }
  92
  93     virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
  94 };
  95
  96 // ----------------------------------------------------------------------------
  97 // implementation using wxLog (mainly for backwards compatibility)
  98 // ----------------------------------------------------------------------------
  99
 100 class WXDLLIMPEXP_BASE wxMessageOutputLog : public wxMessageOutput
 101 {
 102 public:
 103     wxMessageOutputLog() { }
 104
 105     virtual void Printf(const wxChar* format, ...) ATTRIBUTE_PRINTF_2;
 106 };
 107
 108 #endif
 109     // _WX_MSGOUT_H_