src/common/strvararg.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/strvararg.cpp
   3 // Purpose:     macros for implementing type-safe vararg passing of strings
   4 // Author:      Vaclav Slavik
   5 // Created:     2007-02-19
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2007 REA Elektronik GmbH
   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 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #include "wx/strvararg.h"
  27 #include "wx/string.h"
  28
  29 // ============================================================================
  30 // implementation
  31 // ============================================================================
  32
  33 // ----------------------------------------------------------------------------
  34 // wxArgNormalizer<>
  35 // ----------------------------------------------------------------------------
  36
  37 const wxStringCharType *wxArgNormalizerNative<const wxString&>::get() const
  38 {
  39     return m_value.wx_str();
  40 }
  41
  42 const wxStringCharType *wxArgNormalizerNative<const wxCStrData&>::get() const
  43 {
  44     return m_value.AsInternal();
  45 }
  46
  47 #if wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY
  48 wxArgNormalizerWchar<const wxString&>::wxArgNormalizerWchar(const wxString& s)
  49     : wxArgNormalizerWithBuffer<wchar_t>(s.wc_str())
  50 {
  51 }
  52
  53 wxArgNormalizerWchar<const wxCStrData&>::wxArgNormalizerWchar(const wxCStrData& s)
  54     : wxArgNormalizerWithBuffer<wchar_t>(s.AsWCharBuf())
  55 {
  56 }
  57 #endif // wxUSE_UNICODE_UTF8 && !wxUSE_UTF8_LOCALE_ONLY
  58
  59 // ----------------------------------------------------------------------------
  60 // wxArgNormalizedString
  61 // ----------------------------------------------------------------------------
  62
  63 wxString wxArgNormalizedString::GetString() const
  64 {
  65     if ( !IsValid() )
  66         return wxEmptyString;
  67
  68 #if wxUSE_UTF8_LOCALE_ONLY
  69     return wxString(wx_reinterpret_cast(const char*, m_ptr));
  70 #else
  71     #if wxUSE_UNICODE_UTF8
  72         if ( wxLocaleIsUtf8 )
  73             return wxString(wx_reinterpret_cast(const char*, m_ptr));
  74         else
  75     #endif
  76         return wxString(wx_reinterpret_cast(const wxChar*, m_ptr));
  77 #endif // !wxUSE_UTF8_LOCALE_ONLY
  78 }
  79
  80 wxArgNormalizedString::operator wxString() const
  81 {
  82     return GetString();
  83 }
  84
  85 // ----------------------------------------------------------------------------
  86 // wxFormatString
  87 // ----------------------------------------------------------------------------
  88
  89 #if !wxUSE_UNICODE_WCHAR
  90 const char* wxFormatString::AsChar()
  91 {
  92     if ( m_char )
  93         return m_char.data();
  94
  95     // in ANSI build, wx_str() returns char*, in UTF-8 build, this function
  96     // is only called under UTF-8 locales, so we should return UTF-8 string,
  97     // which is, again, what wx_str() returns:
  98     if ( m_str )
  99         return m_str->wx_str();
 100
 101     // ditto wxCStrData:
 102     if ( m_cstr )
 103         return m_cstr->AsInternal();
 104
 105     // the last case is that wide string was passed in: in that case, we need
 106     // to convert it:
 107     wxASSERT( m_wchar );
 108
 109     m_char = wxConvLibc.cWC2MB(m_wchar.data());
 110
 111     return m_char.data();
 112 }
 113 #endif // !wxUSE_UNICODE_WCHAR
 114
 115 #if wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY
 116 const wchar_t* wxFormatString::AsWChar()
 117 {
 118     if ( m_wchar )
 119         return m_wchar.data();
 120
 121 #if wxUSE_UNICODE_WCHAR
 122     if ( m_str )
 123         return m_str->wc_str();
 124     if ( m_cstr )
 125         return m_cstr->AsInternal();
 126 #else // wxUSE_UNICODE_UTF8
 127     if ( m_str )
 128     {
 129         m_wchar = m_str->wc_str();
 130         return m_wchar.data();
 131     }
 132     if ( m_cstr )
 133     {
 134         m_wchar = m_cstr->AsWCharBuf();
 135         return m_wchar.data();
 136     }
 137 #endif // wxUSE_UNICODE_WCHAR/UTF8
 138
 139     // the last case is that narrow string was passed in: in that case, we need
 140     // to convert it:
 141     wxASSERT( m_char );
 142
 143     m_wchar = wxConvLibc.cMB2WC(m_char.data());
 144
 145     return m_wchar.data();
 146 }
 147 #endif // wxUSE_UNICODE && !wxUSE_UTF8_LOCALE_ONLY