src/common/valtext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        valtext.cpp
   3 // Purpose:     wxTextValidator
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "valtext.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20   #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_VALIDATORS
  24
  25 #ifndef WX_PRECOMP
  26   #include <stdio.h>
  27   #include "wx/textctrl.h"
  28   #include "wx/utils.h"
  29   #include "wx/msgdlg.h"
  30   #include "wx/intl.h"
  31 #endif
  32
  33 #include "wx/valtext.h"
  34
  35 #include <ctype.h>
  36 #include <string.h>
  37 #include <stdlib.h>
  38
  39 #ifdef __SALFORDC__
  40     #include <clib.h>
  41 #endif
  42
  43 IMPLEMENT_DYNAMIC_CLASS(wxTextValidator, wxValidator)
  44
  45 BEGIN_EVENT_TABLE(wxTextValidator, wxValidator)
  46     EVT_CHAR(wxTextValidator::OnChar)
  47 END_EVENT_TABLE()
  48
  49 static bool wxIsNumeric(const wxString& val);
  50
  51 wxTextValidator::wxTextValidator(long style, wxString *val)
  52 {
  53     m_validatorStyle = style ;
  54     m_stringValue = val ;
  55 /*
  56     m_refData = new wxVTextRefData;
  57
  58     M_VTEXTDATA->m_validatorStyle = style ;
  59     M_VTEXTDATA->m_stringValue = val ;
  60 */
  61 }
  62
  63 wxTextValidator::wxTextValidator(const wxTextValidator& val)
  64 {
  65     Copy(val);
  66 }
  67
  68 bool wxTextValidator::Copy(const wxTextValidator& val)
  69 {
  70     wxValidator::Copy(val);
  71
  72     m_validatorStyle = val.m_validatorStyle ;
  73     m_stringValue = val.m_stringValue ;
  74
  75     wxNode *node = val.m_includeList.First() ;
  76     while ( node )
  77     {
  78         wxChar *s = (wxChar *)node->Data();
  79         m_includeList.Add(s);
  80         node = node->Next();
  81     }
  82     node = val.m_excludeList.First() ;
  83     while ( node )
  84     {
  85         wxChar *s = (wxChar *)node->Data();
  86         m_excludeList.Add(s);
  87         node = node->Next();
  88     }
  89     return TRUE;
  90 }
  91
  92 wxTextValidator::~wxTextValidator()
  93 {
  94 }
  95
  96 static bool wxIsAlpha(const wxString& val)
  97 {
  98     int i;
  99     for ( i = 0; i < (int)val.Length(); i++)
 100     {
 101         if (!wxIsalpha(val[i]))
 102             return FALSE;
 103     }
 104     return TRUE;
 105 }
 106
 107 static bool wxIsAlphaNumeric(const wxString& val)
 108 {
 109     int i;
 110     for ( i = 0; i < (int)val.Length(); i++)
 111     {
 112         if (!wxIsalnum(val[i]))
 113             return FALSE;
 114     }
 115     return TRUE;
 116 }
 117
 118 // Called when the value in the window must be validated.
 119 // This function can pop up an error message.
 120 bool wxTextValidator::Validate(wxWindow *parent)
 121 {
 122     if( !CheckValidator() )
 123         return FALSE;
 124
 125     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 126
 127     // If window is disabled, simply return
 128     if ( !control->IsEnabled() )
 129         return TRUE;
 130
 131     wxString val(control->GetValue());
 132
 133     bool ok = TRUE;
 134
 135     // this format string should contian exactly one '%s'
 136     const wxChar *errormsg = _("'%s' is invalid");
 137
 138     if ( m_validatorStyle & wxFILTER_INCLUDE_LIST )
 139     {
 140         if ( !m_includeList.Member(val) )
 141         {
 142             ok = FALSE;
 143         }
 144     }
 145     else if ( m_validatorStyle & wxFILTER_EXCLUDE_LIST )
 146     {
 147         if ( m_excludeList.Member(val) )
 148         {
 149             ok = FALSE;
 150         }
 151     }
 152     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 153     {
 154         ok = FALSE;
 155
 156         errormsg = _("'%s' should only contain ASCII characters.");
 157     }
 158     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 159     {
 160         ok = FALSE;
 161
 162         errormsg = _("'%s' should only contain alphabetic characters.");
 163     }
 164     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 165     {
 166         ok = FALSE;
 167
 168         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 169     }
 170     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 171     {
 172         ok = FALSE;
 173
 174         errormsg = _("'%s' should be numeric.");
 175     }
 176
 177     if ( !ok )
 178     {
 179         m_validatorWindow->SetFocus();
 180
 181         wxString buf;
 182         buf.Printf(errormsg, val.c_str());
 183
 184         wxMessageBox(buf, _("Validation conflict"),
 185                      wxOK | wxICON_EXCLAMATION, parent);
 186     }
 187
 188     return ok;
 189 }
 190
 191 // Called to transfer data to the window
 192 bool wxTextValidator::TransferToWindow(void)
 193 {
 194     if( !CheckValidator() )
 195         return FALSE;
 196
 197     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 198     control->SetValue(* m_stringValue) ;
 199
 200     return TRUE;
 201 }
 202
 203 // Called to transfer data to the window
 204 bool wxTextValidator::TransferFromWindow(void)
 205 {
 206     if( !CheckValidator() )
 207         return FALSE;
 208
 209     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 210     * m_stringValue = control->GetValue() ;
 211
 212     return TRUE;
 213 }
 214
 215 void wxTextValidator::SetIncludeList(const wxStringList& list)
 216 {
 217 /*
 218     if ( !M_VTEXTDATA )
 219         return;
 220 */
 221
 222     m_includeList.Clear();
 223     // TODO: replace with =
 224     wxNode *node = list.First() ;
 225     while ( node )
 226     {
 227         wxChar *s = (wxChar *)node->Data();
 228         m_includeList.Add(s);
 229         node = node->Next();
 230     }
 231 }
 232
 233 void wxTextValidator::SetExcludeList(const wxStringList& list)
 234 {
 235 /*
 236     if ( !M_VTEXTDATA )
 237         return;
 238 */
 239
 240     m_excludeList.Clear();
 241     // TODO: replace with =
 242     wxNode *node = list.First() ;
 243     while ( node )
 244     {
 245         wxChar *s = (wxChar *)node->Data();
 246         m_excludeList.Add(s);
 247         node = node->Next();
 248     }
 249 }
 250
 251 void wxTextValidator::OnChar(wxKeyEvent& event)
 252 {
 253 /*
 254     if ( !M_VTEXTDATA )
 255         return;
 256 */
 257
 258     if ( m_validatorWindow )
 259     {
 260         int keyCode = (int)event.KeyCode();
 261
 262         // we don't filter special keys and Delete
 263         if (
 264              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
 265              (
 266               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
 267               ((m_validatorStyle & wxFILTER_ALPHA) && !wxIsalpha(keyCode)) ||
 268               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsalnum(keyCode)) ||
 269               ((m_validatorStyle & wxFILTER_NUMERIC) && !wxIsdigit(keyCode)
 270                                 && keyCode != '.' && keyCode != ',' && keyCode != '-')
 271              )
 272            )
 273         {
 274             if ( !wxValidator::IsSilent() )
 275                 wxBell();
 276
 277             // eat message
 278             return;
 279         }
 280     }
 281
 282     event.Skip();
 283 }
 284
 285 static bool wxIsNumeric(const wxString& val)
 286 {
 287     int i;
 288     for ( i = 0; i < (int)val.Length(); i++)
 289     {
 290         // Allow for "," (French) as well as "." -- in future we should
 291         // use wxSystemSettings or other to do better localisation
 292         if ((!isdigit(val[i])) && (val[i] != '.') && (val[i] != ','))
 293           if(!((i == 0) && (val[i] == '-')))
 294             return FALSE;
 295     }
 296     return TRUE;
 297 }
 298
 299 #endif
 300   // wxUSE_VALIDATORS