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
   9 // Licence:     wxWindows licence
  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 && wxUSE_TEXTCTRL
  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     : wxValidator()
  65 {
  66     Copy(val);
  67 }
  68
  69 bool wxTextValidator::Copy(const wxTextValidator& val)
  70 {
  71     wxValidator::Copy(val);
  72
  73     m_validatorStyle = val.m_validatorStyle ;
  74     m_stringValue = val.m_stringValue ;
  75
  76     wxStringList::Node *node = val.m_includeList.GetFirst() ;
  77     while ( node )
  78     {
  79         wxChar *s = node->GetData();
  80         m_includeList.Add(s);
  81         node = node->GetNext();
  82     }
  83     node = val.m_excludeList.GetFirst() ;
  84     while ( node )
  85     {
  86         wxChar *s = node->GetData();
  87         m_excludeList.Add(s);
  88         node = node->GetNext();
  89     }
  90     return TRUE;
  91 }
  92
  93 wxTextValidator::~wxTextValidator()
  94 {
  95 }
  96
  97 static bool wxIsAlpha(const wxString& val)
  98 {
  99     int i;
 100     for ( i = 0; i < (int)val.Length(); i++)
 101     {
 102         if (!wxIsalpha(val[i]))
 103             return FALSE;
 104     }
 105     return TRUE;
 106 }
 107
 108 static bool wxIsAlphaNumeric(const wxString& val)
 109 {
 110     int i;
 111     for ( i = 0; i < (int)val.Length(); i++)
 112     {
 113         if (!wxIsalnum(val[i]))
 114             return FALSE;
 115     }
 116     return TRUE;
 117 }
 118
 119 // Called when the value in the window must be validated.
 120 // This function can pop up an error message.
 121 bool wxTextValidator::Validate(wxWindow *parent)
 122 {
 123     if( !CheckValidator() )
 124         return FALSE;
 125
 126     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 127
 128     // If window is disabled, simply return
 129     if ( !control->IsEnabled() )
 130         return TRUE;
 131
 132     wxString val(control->GetValue());
 133
 134     bool ok = TRUE;
 135
 136     // NB: this format string should contian exactly one '%s'
 137     wxString errormsg;
 138
 139     bool includeList = (m_validatorStyle & wxFILTER_INCLUDE_LIST) != 0;
 140     if ( includeList || (m_validatorStyle & wxFILTER_EXCLUDE_LIST) )
 141     {
 142         // if includeList, it's only ok to have the members of the list,
 143         // otherwise it's only ok to have non-members
 144         ok = includeList == m_includeList.Member(val);
 145         if ( !ok )
 146         {
 147             errormsg = _("'%s' is invalid");
 148         }
 149     }
 150     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 151     {
 152         ok = FALSE;
 153
 154         errormsg = _("'%s' should only contain ASCII characters.");
 155     }
 156     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 157     {
 158         ok = FALSE;
 159
 160         errormsg = _("'%s' should only contain alphabetic characters.");
 161     }
 162     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 163     {
 164         ok = FALSE;
 165
 166         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 167     }
 168     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 169     {
 170         ok = FALSE;
 171
 172         errormsg = _("'%s' should be numeric.");
 173     }
 174     else if ( (m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(val))
 175     {
 176         //it's only ok to have the members of the list
 177         errormsg = _("'%s' is invalid");
 178         ok = FALSE;
 179     }
 180     else if ( (m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(val))
 181     {
 182         // it's only ok to have non-members of the list
 183         errormsg = _("'%s' is invalid");
 184         ok = FALSE;
 185     }
 186
 187     if ( !ok )
 188     {
 189         wxASSERT_MSG( !errormsg.empty(), _T("you forgot to set errormsg") );
 190
 191         m_validatorWindow->SetFocus();
 192
 193         wxString buf;
 194         buf.Printf(errormsg, val.c_str());
 195
 196         wxMessageBox(buf, _("Validation conflict"),
 197                      wxOK | wxICON_EXCLAMATION, parent);
 198     }
 199
 200     return ok;
 201 }
 202
 203 // Called to transfer data to the window
 204 bool wxTextValidator::TransferToWindow(void)
 205 {
 206     if( !CheckValidator() )
 207         return FALSE;
 208
 209     if (!m_stringValue)
 210         return TRUE;
 211
 212     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 213     control->SetValue(* m_stringValue) ;
 214
 215     return TRUE;
 216 }
 217
 218 // Called to transfer data to the window
 219 bool wxTextValidator::TransferFromWindow(void)
 220 {
 221     if( !CheckValidator() )
 222         return FALSE;
 223
 224     if (!m_stringValue)
 225         return TRUE;
 226
 227     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 228     * m_stringValue = control->GetValue() ;
 229
 230     return TRUE;
 231 }
 232
 233 void wxTextValidator::SetIncludeList(const wxStringList& list)
 234 {
 235 /*
 236     if ( !M_VTEXTDATA )
 237         return;
 238 */
 239
 240     m_includeList.Clear();
 241     // TODO: replace with =
 242     wxStringList::Node     *node = list.GetFirst();
 243     while ( node )
 244     {
 245         wxChar *s = node->GetData();
 246         m_includeList.Add(s);
 247         node = node->GetNext();
 248     }
 249 }
 250
 251 void wxTextValidator::SetExcludeList(const wxStringList& list)
 252 {
 253 /*
 254     if ( !M_VTEXTDATA )
 255         return;
 256 */
 257
 258     m_excludeList.Clear();
 259     // TODO: replace with =
 260     wxStringList::Node  *node = list.GetFirst() ;
 261     while ( node )
 262     {
 263         wxChar *s = node->GetData();
 264         m_excludeList.Add(s);
 265         node = node->GetNext();
 266     }
 267 }
 268
 269 void wxTextValidator::OnChar(wxKeyEvent& event)
 270 {
 271 /*
 272     if ( !M_VTEXTDATA )
 273         return;
 274 */
 275
 276     if ( m_validatorWindow )
 277     {
 278         int keyCode = event.GetKeyCode();
 279
 280         // we don't filter special keys and Delete
 281         if (
 282              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
 283              (
 284               ((m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(wxString((char) keyCode, 1))) ||
 285               ((m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(wxString((char) keyCode, 1))) ||
 286               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
 287               ((m_validatorStyle & wxFILTER_ALPHA) && !wxIsalpha(keyCode)) ||
 288               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsalnum(keyCode)) ||
 289               ((m_validatorStyle & wxFILTER_NUMERIC) && !wxIsdigit(keyCode)
 290                                 && keyCode != '.' && keyCode != ',' && keyCode != '-')
 291              )
 292            )
 293         {
 294             if ( !wxValidator::IsSilent() )
 295                 wxBell();
 296
 297             // eat message
 298             return;
 299         }
 300     }
 301
 302     event.Skip();
 303 }
 304
 305 static bool wxIsNumeric(const wxString& val)
 306 {
 307     int i;
 308     for ( i = 0; i < (int)val.Length(); i++)
 309     {
 310         // Allow for "," (French) as well as "." -- in future we should
 311         // use wxSystemSettings or other to do better localisation
 312         if ((!isdigit(val[i])) && (val[i] != '.') && (val[i] != ',') && (val[i] != wxT('e')) && (val[i] != wxT('E')) && (val[i] != wxT('+')) && (val[i] != wxT('-')))
 313             return FALSE;
 314     }
 315     return TRUE;
 316 }
 317
 318 bool wxTextValidator::IsInCharIncludeList(const wxString& val)
 319 {
 320     size_t i;
 321     for ( i = 0; i < val.Length(); i++)
 322     {
 323         if (!m_includeList.Member((wxString) val[i]))
 324             return FALSE;
 325     }
 326     return TRUE;
 327 }
 328
 329 bool wxTextValidator::IsNotInCharExcludeList(const wxString& val)
 330 {
 331     size_t i;
 332     for ( i = 0; i < val.Length(); i++)
 333     {
 334        if (m_excludeList.Member((wxString) val[i]))
 335        return FALSE;
 336     }
 337     return TRUE;
 338 }
 339
 340 #endif
 341   // wxUSE_VALIDATORS && wxUSE_TEXTCTRL