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 #if !USE_SHARED_LIBRARY
  44 IMPLEMENT_DYNAMIC_CLASS(wxTextValidator, wxValidator)
  45
  46 BEGIN_EVENT_TABLE(wxTextValidator, wxValidator)
  47     EVT_CHAR(wxTextValidator::OnChar)
  48 END_EVENT_TABLE()
  49 #endif
  50
  51 static bool wxIsNumeric(const wxString& val);
  52
  53 wxTextValidator::wxTextValidator(long style, wxString *val)
  54 {
  55     m_validatorStyle = style ;
  56     m_stringValue = val ;
  57 /*
  58     m_refData = new wxVTextRefData;
  59
  60     M_VTEXTDATA->m_validatorStyle = style ;
  61     M_VTEXTDATA->m_stringValue = val ;
  62 */
  63 }
  64
  65 wxTextValidator::wxTextValidator(const wxTextValidator& val)
  66 {
  67     Copy(val);
  68 }
  69
  70 bool wxTextValidator::Copy(const wxTextValidator& val)
  71 {
  72     wxValidator::Copy(val);
  73
  74     m_validatorStyle = val.m_validatorStyle ;
  75     m_stringValue = val.m_stringValue ;
  76
  77     wxNode *node = val.m_includeList.First() ;
  78     while ( node )
  79     {
  80         wxChar *s = (wxChar *)node->Data();
  81         m_includeList.Add(s);
  82         node = node->Next();
  83     }
  84     node = val.m_excludeList.First() ;
  85     while ( node )
  86     {
  87         wxChar *s = (wxChar *)node->Data();
  88         m_excludeList.Add(s);
  89         node = node->Next();
  90     }
  91     return TRUE;
  92 }
  93
  94 wxTextValidator::~wxTextValidator()
  95 {
  96 }
  97
  98 static bool wxIsAlpha(const wxString& val)
  99 {
 100     int i;
 101     for ( i = 0; i < (int)val.Length(); i++)
 102     {
 103         if (!isalpha(val[i]))
 104             return FALSE;
 105     }
 106     return TRUE;
 107 }
 108
 109 static bool wxIsAlphaNumeric(const wxString& val)
 110 {
 111     int i;
 112     for ( i = 0; i < (int)val.Length(); i++)
 113     {
 114         if (!isalnum(val[i]))
 115             return FALSE;
 116     }
 117     return TRUE;
 118 }
 119
 120 // Called when the value in the window must be validated.
 121 // This function can pop up an error message.
 122 bool wxTextValidator::Validate(wxWindow *parent)
 123 {
 124     if ( !m_validatorWindow )
 125         return FALSE;
 126     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 127         return FALSE;
 128     if ( !m_stringValue )
 129         return FALSE;
 130
 131     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 132
 133     // If window is disabled, simply return
 134     if ( !control->IsEnabled() )
 135         return TRUE;
 136
 137     wxString val(control->GetValue());
 138
 139     bool ok = TRUE;
 140
 141     // this format string should contian exactly one '%s'
 142     const wxChar *errormsg = _("'%s' is invalid");
 143
 144     if ( m_validatorStyle & wxFILTER_INCLUDE_LIST )
 145     {
 146         if ( !m_includeList.Member(val) )
 147         {
 148             ok = FALSE;
 149         }
 150     }
 151     else if ( m_validatorStyle & wxFILTER_EXCLUDE_LIST )
 152     {
 153         if ( m_excludeList.Member(val) )
 154         {
 155             ok = FALSE;
 156         }
 157     }
 158     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 159     {
 160         ok = FALSE;
 161
 162         errormsg = _("'%s' should only contain ASCII characters.");
 163     }
 164     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 165     {
 166         ok = FALSE;
 167
 168         errormsg = _("'%s' should only contain alphabetic characters.");
 169     }
 170     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 171     {
 172         ok = FALSE;
 173
 174         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 175     }
 176     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 177     {
 178         ok = FALSE;
 179
 180         errormsg = _("'%s' should be numeric.");
 181     }
 182
 183     if ( !ok )
 184     {
 185         m_validatorWindow->SetFocus();
 186
 187         wxString buf;
 188         buf.Printf(errormsg, val.c_str());
 189
 190         wxMessageBox(buf, _("Validation conflict"),
 191                      wxOK | wxICON_EXCLAMATION, parent);
 192     }
 193
 194     return ok;
 195 }
 196
 197 // Called to transfer data to the window
 198 bool wxTextValidator::TransferToWindow(void)
 199 {
 200     if ( !m_validatorWindow )
 201         return FALSE;
 202     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 203         return FALSE;
 204     if ( !m_stringValue )
 205         return FALSE;
 206
 207     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 208     control->SetValue(* m_stringValue) ;
 209
 210     return TRUE;
 211 }
 212
 213 // Called to transfer data to the window
 214 bool wxTextValidator::TransferFromWindow(void)
 215 {
 216     if ( !m_validatorWindow )
 217         return FALSE;
 218     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 219         return FALSE;
 220     if ( !m_stringValue )
 221         return FALSE;
 222
 223     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 224     * m_stringValue = control->GetValue() ;
 225
 226     return TRUE;
 227 }
 228
 229 void wxTextValidator::SetIncludeList(const wxStringList& list)
 230 {
 231 /*
 232     if ( !M_VTEXTDATA )
 233         return;
 234 */
 235
 236     m_includeList.Clear();
 237     // TODO: replace with =
 238     wxNode *node = list.First() ;
 239     while ( node )
 240     {
 241         wxChar *s = (wxChar *)node->Data();
 242         m_includeList.Add(s);
 243         node = node->Next();
 244     }
 245 }
 246
 247 void wxTextValidator::SetExcludeList(const wxStringList& list)
 248 {
 249 /*
 250     if ( !M_VTEXTDATA )
 251         return;
 252 */
 253
 254     m_excludeList.Clear();
 255     // TODO: replace with =
 256     wxNode *node = list.First() ;
 257     while ( node )
 258     {
 259         wxChar *s = (wxChar *)node->Data();
 260         m_excludeList.Add(s);
 261         node = node->Next();
 262     }
 263 }
 264
 265 void wxTextValidator::OnChar(wxKeyEvent& event)
 266 {
 267 /*
 268     if ( !M_VTEXTDATA )
 269         return;
 270 */
 271
 272     if ( m_validatorWindow )
 273     {
 274         int keyCode = event.KeyCode();
 275
 276         // we don't filter special keys and Delete
 277         if (
 278              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
 279              (
 280               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
 281               ((m_validatorStyle & wxFILTER_ALPHA) && !isalpha(keyCode)) ||
 282               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !isalnum(keyCode)) ||
 283               ((m_validatorStyle & wxFILTER_NUMERIC) && !isdigit(keyCode)
 284                                 && keyCode != '.' && keyCode != '-')
 285              )
 286            )
 287         {
 288             if ( !wxValidator::IsSilent() )
 289                 wxBell();
 290
 291             // eat message
 292             return;
 293         }
 294     }
 295
 296     event.Skip();
 297 }
 298
 299 static bool wxIsNumeric(const wxString& val)
 300 {
 301     int i;
 302     for ( i = 0; i < (int)val.Length(); i++)
 303     {
 304         if ((!isdigit(val[i])) && (val[i] != '.'))
 305           if(!((i == 0) && (val[i] == '-')))
 306             return FALSE;
 307     }
 308     return TRUE;
 309 }
 310
 311 #endif
 312   // wxUSE_VALIDATORS
 313