src/common/msgout.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/msgout.cpp
   3 // Purpose:     wxMessageOutput implementation
   4 // Author:      Mattia Barbon
   5 // Modified by:
   6 // Created:     17.07.02
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) the wxWidgets team
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ---------------------------------------------------------------------------
  17 // headers
  18 // ---------------------------------------------------------------------------
  19
  20 // For compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #if defined(__BORLANDC__)
  24     #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28     #include "wx/string.h"
  29     #include "wx/ffile.h"
  30     #include "wx/app.h"
  31     #include "wx/intl.h"
  32     #include "wx/log.h"
  33     #if wxUSE_GUI
  34         #include "wx/msgdlg.h"
  35     #endif // wxUSE_GUI
  36 #endif
  37
  38 #include "wx/msgout.h"
  39 #include "wx/apptrait.h"
  40 #include <stdarg.h>
  41 #include <stdio.h>
  42
  43 #if defined(__WINDOWS__)
  44     #include "wx/msw/private.h"
  45 #endif
  46
  47 // ===========================================================================
  48 // implementation
  49 // ===========================================================================
  50
  51 #if wxUSE_BASE
  52
  53 // ----------------------------------------------------------------------------
  54 // wxMessageOutput
  55 // ----------------------------------------------------------------------------
  56
  57 wxMessageOutput* wxMessageOutput::ms_msgOut = 0;
  58
  59 wxMessageOutput* wxMessageOutput::Get()
  60 {
  61     if ( !ms_msgOut && wxTheApp )
  62     {
  63         ms_msgOut = wxTheApp->GetTraits()->CreateMessageOutput();
  64     }
  65
  66     return ms_msgOut;
  67 }
  68
  69 wxMessageOutput* wxMessageOutput::Set(wxMessageOutput* msgout)
  70 {
  71     wxMessageOutput* old = ms_msgOut;
  72     ms_msgOut = msgout;
  73     return old;
  74 }
  75
  76 #if !wxUSE_UTF8_LOCALE_ONLY
  77 void wxMessageOutput::DoPrintfWchar(const wxChar *format, ...)
  78 {
  79     va_list args;
  80     va_start(args, format);
  81     wxString out;
  82
  83     out.PrintfV(format, args);
  84     va_end(args);
  85
  86     Output(out);
  87 }
  88 #endif // !wxUSE_UTF8_LOCALE_ONLY
  89
  90 #if wxUSE_UNICODE_UTF8
  91 void wxMessageOutput::DoPrintfUtf8(const char *format, ...)
  92 {
  93     va_list args;
  94     va_start(args, format);
  95     wxString out;
  96
  97     out.PrintfV(format, args);
  98     va_end(args);
  99
 100     Output(out);
 101 }
 102 #endif // wxUSE_UNICODE_UTF8
 103
 104 // ----------------------------------------------------------------------------
 105 // wxMessageOutputBest
 106 // ----------------------------------------------------------------------------
 107
 108 void wxMessageOutputBest::Output(const wxString& str)
 109 {
 110 #ifdef __WINDOWS__
 111     // decide whether to use console output or not
 112     wxAppTraits * const traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
 113     const bool hasStderr = traits ? traits->CanUseStderr() : false;
 114
 115     if ( !(m_flags & wxMSGOUT_PREFER_MSGBOX) )
 116     {
 117         if ( hasStderr && traits->WriteToStderr(AppendLineFeedIfNeeded(str)) )
 118             return;
 119     }
 120
 121     wxString title;
 122     if ( wxTheApp )
 123         title = wxTheApp->GetAppDisplayName();
 124     else // Use some title to avoid default "Error"
 125         title = _("Message");
 126
 127     ::MessageBox(NULL, str.t_str(), title.t_str(), MB_ICONINFORMATION | MB_OK);
 128 #else // !__WINDOWS__
 129     wxUnusedVar(m_flags);
 130
 131     // TODO: use the native message box for the other ports too
 132     wxMessageOutputStderr::Output(str);
 133 #endif // __WINDOWS__/!__WINDOWS__
 134 }
 135
 136 // ----------------------------------------------------------------------------
 137 // wxMessageOutputStderr
 138 // ----------------------------------------------------------------------------
 139
 140 wxString wxMessageOutputStderr::AppendLineFeedIfNeeded(const wxString& str)
 141 {
 142     wxString strLF(str);
 143     if ( strLF.empty() || *strLF.rbegin() != '\n' )
 144         strLF += '\n';
 145
 146     return strLF;
 147 }
 148
 149 void wxMessageOutputStderr::Output(const wxString& str)
 150 {
 151     const wxString strWithLF = AppendLineFeedIfNeeded(str);
 152     const wxWX2MBbuf buf = strWithLF.mb_str();
 153
 154     if ( buf )
 155         fprintf(m_fp, "%s", (const char*) buf);
 156     else // print at least something
 157         fprintf(m_fp, "%s", (const char*) strWithLF.ToAscii());
 158
 159     fflush(m_fp);
 160 }
 161
 162 // ----------------------------------------------------------------------------
 163 // wxMessageOutputDebug
 164 // ----------------------------------------------------------------------------
 165
 166 void wxMessageOutputDebug::Output(const wxString& str)
 167 {
 168 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
 169     wxString out(AppendLineFeedIfNeeded(str));
 170     out.Replace(wxT("\t"), wxT("        "));
 171     out.Replace(wxT("\n"), wxT("\r\n"));
 172     ::OutputDebugString(out.t_str());
 173 #else
 174     // TODO: use native debug output function for the other ports too
 175     wxMessageOutputStderr::Output(str);
 176 #endif // platform
 177 }
 178
 179 // ----------------------------------------------------------------------------
 180 // wxMessageOutputLog
 181 // ----------------------------------------------------------------------------
 182
 183 void wxMessageOutputLog::Output(const wxString& str)
 184 {
 185     wxString out(str);
 186
 187     out.Replace(wxT("\t"), wxT("        "));
 188
 189     wxLogMessage(wxT("%s"), out.c_str());
 190 }
 191
 192 #endif // wxUSE_BASE
 193
 194 // ----------------------------------------------------------------------------
 195 // wxMessageOutputMessageBox
 196 // ----------------------------------------------------------------------------
 197
 198 #if wxUSE_GUI && wxUSE_MSGDLG
 199
 200 extern WXDLLEXPORT_DATA(const char) wxMessageBoxCaptionStr[] = "Message";
 201
 202 void wxMessageOutputMessageBox::Output(const wxString& str)
 203 {
 204     wxString out(str);
 205
 206     // the native MSW msg box understands the TABs, others don't
 207 #ifndef __WINDOWS__
 208     out.Replace(wxT("\t"), wxT("        "));
 209 #endif
 210
 211     wxString title = wxT("wxWidgets") ;
 212     if (wxTheApp) title = wxTheApp->GetAppDisplayName();
 213
 214     ::wxMessageBox(out, title);
 215 }
 216
 217 #endif // wxUSE_GUI