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 // Copyright:   (c) Julian Smart
   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 #if wxUSE_SYSTEM_OPTIONS
  27
  28 #include "wx/sysopt.h"
  29
  30 #ifndef WX_PRECOMP
  31     #include "wx/app.h"
  32     #include "wx/list.h"
  33     #include "wx/string.h"
  34     #include "wx/arrstr.h"
  35 #endif
  36
  37 // ----------------------------------------------------------------------------
  38 // private globals
  39 // ----------------------------------------------------------------------------
  40
  41 static wxArrayString gs_optionNames,
  42                      gs_optionValues;
  43
  44 // ============================================================================
  45 // wxSystemOptions implementation
  46 // ============================================================================
  47
  48 // Option functions (arbitrary name/value mapping)
  49 void wxSystemOptions::SetOption(const wxString& name, const wxString& value)
  50 {
  51     int idx = gs_optionNames.Index(name, false);
  52     if (idx == wxNOT_FOUND)
  53     {
  54         gs_optionNames.Add(name);
  55         gs_optionValues.Add(value);
  56     }
  57     else
  58     {
  59         gs_optionNames[idx] = name;
  60         gs_optionValues[idx] = value;
  61     }
  62 }
  63
  64 void wxSystemOptions::SetOption(const wxString& name, int value)
  65 {
  66     SetOption(name, wxString::Format(wxT("%d"), value));
  67 }
  68
  69 wxString wxSystemOptions::GetOption(const wxString& name)
  70 {
  71     wxString val;
  72
  73     int idx = gs_optionNames.Index(name, false);
  74     if ( idx != wxNOT_FOUND )
  75     {
  76         val = gs_optionValues[idx];
  77     }
  78     else // not set explicitly
  79     {
  80         // look in the environment: first for a variable named "wx_appname_name"
  81         // which can be set to affect the behaviour or just this application
  82         // and then for "wx_name" which can be set to change the option globally
  83         wxString var(name);
  84         var.Replace(wxT("."), wxT("_"));  // '.'s not allowed in env var names
  85         var.Replace(wxT("-"), wxT("_"));  // and neither are '-'s
  86
  87         wxString appname;
  88         if ( wxTheApp )
  89             appname = wxTheApp->GetAppName();
  90
  91         if ( !appname.empty() )
  92             val = wxGetenv(wxT("wx_") + appname + wxT('_') + var);
  93
  94         if ( val.empty() )
  95             val = wxGetenv(wxT("wx_") + var);
  96     }
  97
  98     return val;
  99 }
 100
 101 int wxSystemOptions::GetOptionInt(const wxString& name)
 102 {
 103     return wxAtoi (GetOption(name));
 104 }
 105
 106 bool wxSystemOptions::HasOption(const wxString& name)
 107 {
 108     return !GetOption(name).empty();
 109 }
 110
 111 #endif // wxUSE_SYSTEM_OPTIONS