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     // NB: this format string should contian exactly one '%s'
 136     wxString errormsg;
 137
 138     bool includeList = (m_validatorStyle & wxFILTER_INCLUDE_LIST) != 0;
 139     if ( includeList || (m_validatorStyle & wxFILTER_EXCLUDE_LIST) )
 140     {
 141         // if includeList, it's only ok to have the members of the list,
 142         // otherwise it's only ok to have non-members
 143         ok = includeList == m_includeList.Member(val);
 144         if ( !ok )
 145         {
 146             errormsg = _("'%s' is invalid");
 147         }
 148     }
 149     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 150     {
 151         ok = FALSE;
 152
 153         errormsg = _("'%s' should only contain ASCII characters.");
 154     }
 155     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 156     {
 157         ok = FALSE;
 158
 159         errormsg = _("'%s' should only contain alphabetic characters.");
 160     }
 161     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 162     {
 163         ok = FALSE;
 164
 165         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 166     }
 167     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 168     {
 169         ok = FALSE;
 170
 171         errormsg = _("'%s' should be numeric.");
 172     }
 173     else if ( (m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(val))
 174     {
 175         //it's only ok to have the members of the list
 176         errormsg = _("'%s' is invalid");
 177         ok = FALSE;
 178     }
 179     else if ( (m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(val))
 180     {
 181         // it's only ok to have non-members of the list
 182         errormsg = _("'%s' is invalid");
 183         ok = FALSE;
 184     }
 185
 186     if ( !ok )
 187     {
 188         wxASSERT_MSG( !errormsg.empty(), _T("you forgot to set errormsg") );
 189
 190         m_validatorWindow->SetFocus();
 191
 192         wxString buf;
 193         buf.Printf(errormsg, val.c_str());
 194
 195         wxMessageBox(buf, _("Validation conflict"),
 196                      wxOK | wxICON_EXCLAMATION, parent);
 197     }
 198
 199     return ok;
 200 }
 201
 202 // Called to transfer data to the window
 203 bool wxTextValidator::TransferToWindow(void)
 204 {
 205     if( !CheckValidator() )
 206         return FALSE;
 207
 208     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 209     control->SetValue(* m_stringValue) ;
 210
 211     return TRUE;
 212 }
 213
 214 // Called to transfer data to the window
 215 bool wxTextValidator::TransferFromWindow(void)
 216 {
 217     if( !CheckValidator() )
 218         return FALSE;
 219
 220     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 221     * m_stringValue = control->GetValue() ;
 222
 223     return TRUE;
 224 }
 225
 226 void wxTextValidator::SetIncludeList(const wxStringList& list)
 227 {
 228 /*
 229     if ( !M_VTEXTDATA )
 230         return;
 231 */
 232
 233     m_includeList.Clear();
 234     // TODO: replace with =
 235     wxNode *node = list.First() ;
 236     while ( node )
 237     {
 238         wxChar *s = (wxChar *)node->Data();
 239         m_includeList.Add(s);
 240         node = node->Next();
 241     }
 242 }
 243
 244 void wxTextValidator::SetExcludeList(const wxStringList& list)
 245 {
 246 /*
 247     if ( !M_VTEXTDATA )
 248         return;
 249 */
 250
 251     m_excludeList.Clear();
 252     // TODO: replace with =
 253     wxNode *node = list.First() ;
 254     while ( node )
 255     {
 256         wxChar *s = (wxChar *)node->Data();
 257         m_excludeList.Add(s);
 258         node = node->Next();
 259     }
 260 }
 261
 262 void wxTextValidator::OnChar(wxKeyEvent& event)
 263 {
 264 /*
 265     if ( !M_VTEXTDATA )
 266         return;
 267 */
 268
 269     if ( m_validatorWindow )
 270     {
 271         int keyCode = (int)event.KeyCode();
 272
 273         // we don't filter special keys and Delete
 274         if (
 275              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
 276              (
 277                           ((m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(wxString((char) keyCode, 1))) ||
 278               ((m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(wxString((char) keyCode, 1))) ||
 279               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
 280               ((m_validatorStyle & wxFILTER_ALPHA) && !wxIsalpha(keyCode)) ||
 281               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsalnum(keyCode)) ||
 282               ((m_validatorStyle & wxFILTER_NUMERIC) && !wxIsdigit(keyCode)
 283                                 && keyCode != '.' && keyCode != ',' && keyCode != '-')
 284              )
 285            )
 286         {
 287             if ( !wxValidator::IsSilent() )
 288                 wxBell();
 289
 290             // eat message
 291             return;
 292         }
 293     }
 294
 295     event.Skip();
 296 }
 297
 298 static bool wxIsNumeric(const wxString& val)
 299 {
 300     int i;
 301     for ( i = 0; i < (int)val.Length(); i++)
 302     {
 303         // Allow for "," (French) as well as "." -- in future we should
 304         // use wxSystemSettings or other to do better localisation
 305         if ((!isdigit(val[i])) && (val[i] != '.') && (val[i] != ','))
 306           if(!((i == 0) && (val[i] == '-')))
 307             return FALSE;
 308     }
 309     return TRUE;
 310 }
 311
 312 bool wxTextValidator::IsInCharIncludeList(const wxString& val)
 313 {
 314     size_t i;
 315     for ( i = 0; i < val.Length(); i++)
 316     {
 317         if (!m_includeList.Member((wxString) val[i]))
 318             return FALSE;
 319     }
 320     return TRUE;
 321 }
 322
 323 bool wxTextValidator::IsNotInCharExcludeList(const wxString& val)
 324 {
 325     size_t i;
 326     for ( i = 0; i < val.Length(); i++)
 327     {
 328        if (m_excludeList.Member((wxString) val[i]))
 329        return FALSE;
 330     }
 331     return TRUE;
 332 }
 333
 334 #endif
 335   // wxUSE_VALIDATORS