src/common/sysopt.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/sysopt.cpp
   3 // Purpose:     wxSystemOptions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     2001-07-10
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   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 #if wxUSE_SYSTEM_OPTIONS
  28
  29 #include "wx/sysopt.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/app.h"
  33     #include "wx/list.h"
  34     #include "wx/string.h"
  35     #include "wx/arrstr.h"
  36 #endif
  37
  38 // ----------------------------------------------------------------------------
  39 // private globals
  40 // ----------------------------------------------------------------------------
  41
  42 static wxArrayString gs_optionNames,
  43                      gs_optionValues;
  44
  45 // ============================================================================
  46 // wxSystemOptions implementation
  47 // ============================================================================
  48
  49 // Option functions (arbitrary name/value mapping)
  50 void wxSystemOptions::SetOption(const wxString& name, const wxString& value)
  51 {
  52     int idx = gs_optionNames.Index(name, false);
  53     if (idx == wxNOT_FOUND)
  54     {
  55         gs_optionNames.Add(name);
  56         gs_optionValues.Add(value);
  57     }
  58     else
  59     {
  60         gs_optionNames[idx] = name;
  61         gs_optionValues[idx] = value;
  62     }
  63 }
  64
  65 void wxSystemOptions::SetOption(const wxString& name, int value)
  66 {
  67     SetOption(name, wxString::Format(wxT("%d"), value));
  68 }
  69
  70 wxString wxSystemOptions::GetOption(const wxString& name)
  71 {
  72     wxString val;
  73
  74     int idx = gs_optionNames.Index(name, false);
  75     if ( idx != wxNOT_FOUND )
  76     {
  77         val = gs_optionValues[idx];
  78     }
  79     else // not set explicitly
  80     {
  81         // look in the environment: first for a variable named "wx_appname_name"
  82         // which can be set to affect the behaviour or just this application
  83         // and then for "wx_name" which can be set to change the option globally
  84         wxString var(name);
  85         var.Replace(wxT("."), wxT("_"));  // '.'s not allowed in env var names
  86         var.Replace(wxT("-"), wxT("_"));  // and neither are '-'s
  87
  88         wxString appname;
  89         if ( wxTheApp )
  90             appname = wxTheApp->GetAppName();
  91
  92         if ( !appname.empty() )
  93             val = wxGetenv(wxT("wx_") + appname + wxT('_') + var);
  94
  95         if ( val.empty() )
  96             val = wxGetenv(wxT("wx_") + var);
  97     }
  98
  99     return val;
 100 }
 101
 102 int wxSystemOptions::GetOptionInt(const wxString& name)
 103 {
 104     return wxAtoi (GetOption(name));
 105 }
 106
 107 bool wxSystemOptions::HasOption(const wxString& name)
 108 {
 109     return !GetOption(name).empty();
 110 }
 111
 112 #endif // wxUSE_SYSTEM_OPTIONS