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