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