a7dddd9f3b
Add wxMessageOutputWithConv mix-in class to avoid duplicating the same code in wxLogStream and wxMessageOutputStderr. Also derive wxLogStderr from wxMessageOutputStderr to reuse its code without having to create a temporary object of this type (which will be more expensive now that doing it involves creating a heap-allocated conversion object copy).
238 lines
6.5 KiB
C++
238 lines
6.5 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: src/common/msgout.cpp
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// Purpose: wxMessageOutput implementation
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// Author: Mattia Barbon
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// Modified by:
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// Created: 17.07.02
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// Copyright: (c) the wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ---------------------------------------------------------------------------
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// headers
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// ---------------------------------------------------------------------------
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// For compilers that support precompilation, includes "wx.h".
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#include "wx/wxprec.h"
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#if defined(__BORLANDC__)
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#pragma hdrstop
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#endif
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#ifndef WX_PRECOMP
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#include "wx/string.h"
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#include "wx/ffile.h"
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#include "wx/app.h"
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#include "wx/intl.h"
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#include "wx/log.h"
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#if wxUSE_GUI
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#include "wx/msgdlg.h"
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#endif // wxUSE_GUI
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#endif
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#include "wx/msgout.h"
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#include "wx/apptrait.h"
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#include <stdarg.h>
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#include <stdio.h>
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#if defined(__WINDOWS__)
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#include "wx/msw/private.h"
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#endif
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// ===========================================================================
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// implementation
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// ===========================================================================
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#if wxUSE_BASE
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// ----------------------------------------------------------------------------
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// wxMessageOutput
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// ----------------------------------------------------------------------------
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wxMessageOutput* wxMessageOutput::ms_msgOut = 0;
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wxMessageOutput* wxMessageOutput::Get()
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{
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if ( !ms_msgOut && wxTheApp )
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{
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ms_msgOut = wxTheApp->GetTraits()->CreateMessageOutput();
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}
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return ms_msgOut;
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}
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wxMessageOutput* wxMessageOutput::Set(wxMessageOutput* msgout)
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{
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wxMessageOutput* old = ms_msgOut;
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ms_msgOut = msgout;
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return old;
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}
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#if !wxUSE_UTF8_LOCALE_ONLY
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void wxMessageOutput::DoPrintfWchar(const wxChar *format, ...)
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{
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va_list args;
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va_start(args, format);
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wxString out;
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out.PrintfV(format, args);
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va_end(args);
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Output(out);
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}
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#endif // !wxUSE_UTF8_LOCALE_ONLY
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#if wxUSE_UNICODE_UTF8
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void wxMessageOutput::DoPrintfUtf8(const char *format, ...)
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{
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va_list args;
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va_start(args, format);
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wxString out;
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out.PrintfV(format, args);
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va_end(args);
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Output(out);
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}
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#endif // wxUSE_UNICODE_UTF8
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// ----------------------------------------------------------------------------
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// wxMessageOutputBest
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// ----------------------------------------------------------------------------
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void wxMessageOutputBest::Output(const wxString& str)
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{
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#ifdef __WINDOWS__
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// decide whether to use console output or not
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wxAppTraits * const traits = wxTheApp ? wxTheApp->GetTraits() : NULL;
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const bool hasStderr = traits ? traits->CanUseStderr() : false;
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if ( !(m_flags & wxMSGOUT_PREFER_MSGBOX) )
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{
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if ( hasStderr && traits->WriteToStderr(AppendLineFeedIfNeeded(str)) )
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return;
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}
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wxString title;
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if ( wxTheApp )
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title = wxTheApp->GetAppDisplayName();
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else // Use some title to avoid default "Error"
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title = _("Message");
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::MessageBox(NULL, str.t_str(), title.t_str(), MB_ICONINFORMATION | MB_OK);
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#else // !__WINDOWS__
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wxUnusedVar(m_flags);
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// TODO: use the native message box for the other ports too
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wxMessageOutputStderr::Output(str);
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#endif // __WINDOWS__/!__WINDOWS__
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}
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// ----------------------------------------------------------------------------
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// wxMessageOutputWithConv
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// ----------------------------------------------------------------------------
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wxString wxMessageOutputWithConv::AppendLineFeedIfNeeded(const wxString& str)
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{
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wxString strLF(str);
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if ( strLF.empty() || *strLF.rbegin() != '\n' )
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strLF += '\n';
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return strLF;
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}
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wxCharBuffer wxMessageOutputWithConv::PrepareForOutput(const wxString& str)
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{
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wxString strWithLF = AppendLineFeedIfNeeded(str);
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#if defined(__WINDOWS__)
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// Determine whether the encoding is UTF-16. In that case, the file
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// should have been opened in "wb" mode, and EOL conversion must be done
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// here as it won't be done at stdio level.
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if ( m_conv->GetMBNulLen() == 2 )
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{
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strWithLF.Replace("\n", "\r\n");
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}
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#endif // __WINDOWS__
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return m_conv->cWX2MB(strWithLF.c_str());
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}
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// ----------------------------------------------------------------------------
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// wxMessageOutputStderr
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// ----------------------------------------------------------------------------
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wxMessageOutputStderr::wxMessageOutputStderr(FILE *fp, const wxMBConv& conv)
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: wxMessageOutputWithConv(conv),
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m_fp(fp)
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{
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}
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void wxMessageOutputStderr::Output(const wxString& str)
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{
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const wxCharBuffer& buf = PrepareForOutput(str);
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fwrite(buf, buf.length(), 1, m_fp);
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fflush(m_fp);
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}
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// ----------------------------------------------------------------------------
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// wxMessageOutputDebug
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// ----------------------------------------------------------------------------
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void wxMessageOutputDebug::Output(const wxString& str)
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{
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#if defined(__WINDOWS__)
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wxString out(AppendLineFeedIfNeeded(str));
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out.Replace(wxT("\t"), wxT(" "));
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out.Replace(wxT("\n"), wxT("\r\n"));
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::OutputDebugString(out.t_str());
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#else
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// TODO: use native debug output function for the other ports too
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wxMessageOutputStderr::Output(str);
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#endif // platform
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}
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// ----------------------------------------------------------------------------
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// wxMessageOutputLog
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// ----------------------------------------------------------------------------
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void wxMessageOutputLog::Output(const wxString& str)
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{
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wxString out(str);
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out.Replace(wxT("\t"), wxT(" "));
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wxLogMessage(wxT("%s"), out.c_str());
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}
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#endif // wxUSE_BASE
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// ----------------------------------------------------------------------------
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// wxMessageOutputMessageBox
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// ----------------------------------------------------------------------------
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#if wxUSE_GUI && wxUSE_MSGDLG
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extern WXDLLEXPORT_DATA(const char) wxMessageBoxCaptionStr[] = "Message";
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void wxMessageOutputMessageBox::Output(const wxString& str)
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{
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wxString out(str);
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// the native MSW msg box understands the TABs, others don't
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#ifndef __WINDOWS__
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out.Replace(wxT("\t"), wxT(" "));
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#endif
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wxString title = wxT("wxWidgets") ;
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if (wxTheApp) title = wxTheApp->GetAppDisplayName();
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::wxMessageBox(out, title);
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}
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#endif // wxUSE_GUI
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