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 #ifndef WX_PRECOMP
  24   #include "wx/defs.h"
  25 #endif
  26
  27 #if wxUSE_VALIDATORS
  28
  29 #ifndef WX_PRECOMP
  30   #include <stdio.h>
  31   #include "wx/textctrl.h"
  32   #include "wx/utils.h"
  33   #include "wx/msgdlg.h"
  34   #include "wx/intl.h"
  35 #endif
  36
  37 #include "wx/valtext.h"
  38
  39 #include <ctype.h>
  40 #include <string.h>
  41 #include <stdlib.h>
  42
  43 #ifdef __SALFORDC__
  44     #include <clib.h>
  45 #endif
  46
  47 #if !USE_SHARED_LIBRARY
  48 IMPLEMENT_DYNAMIC_CLASS(wxTextValidator, wxValidator)
  49
  50 BEGIN_EVENT_TABLE(wxTextValidator, wxValidator)
  51     EVT_CHAR(wxTextValidator::OnChar)
  52 END_EVENT_TABLE()
  53 #endif
  54
  55 static bool wxIsNumeric(const wxString& val);
  56
  57 wxTextValidator::wxTextValidator(long style, wxString *val)
  58 {
  59     m_validatorStyle = style ;
  60     m_stringValue = val ;
  61 /*
  62     m_refData = new wxVTextRefData;
  63
  64     M_VTEXTDATA->m_validatorStyle = style ;
  65     M_VTEXTDATA->m_stringValue = val ;
  66 */
  67 }
  68
  69 wxTextValidator::wxTextValidator(const wxTextValidator& val)
  70 {
  71     Copy(val);
  72 }
  73
  74 bool wxTextValidator::Copy(const wxTextValidator& val)
  75 {
  76     wxValidator::Copy(val);
  77
  78     m_validatorStyle = val.m_validatorStyle ;
  79     m_stringValue = val.m_stringValue ;
  80
  81     wxNode *node = val.m_includeList.First() ;
  82     while ( node )
  83     {
  84         wxChar *s = (wxChar *)node->Data();
  85         m_includeList.Add(s);
  86         node = node->Next();
  87     }
  88     node = val.m_excludeList.First() ;
  89     while ( node )
  90     {
  91         wxChar *s = (wxChar *)node->Data();
  92         m_excludeList.Add(s);
  93         node = node->Next();
  94     }
  95     return TRUE;
  96 }
  97
  98 wxTextValidator::~wxTextValidator()
  99 {
 100 }
 101
 102 static bool wxIsAlpha(const wxString& val)
 103 {
 104     int i;
 105     for ( i = 0; i < (int)val.Length(); i++)
 106     {
 107         if (!isalpha(val[i]))
 108             return FALSE;
 109     }
 110     return TRUE;
 111 }
 112
 113 static bool wxIsAlphaNumeric(const wxString& val)
 114 {
 115     int i;
 116     for ( i = 0; i < (int)val.Length(); i++)
 117     {
 118         if (!isalnum(val[i]))
 119             return FALSE;
 120     }
 121     return TRUE;
 122 }
 123
 124 // Called when the value in the window must be validated.
 125 // This function can pop up an error message.
 126 bool wxTextValidator::Validate(wxWindow *parent)
 127 {
 128     if ( !m_validatorWindow )
 129         return FALSE;
 130     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 131         return FALSE;
 132     if ( !m_stringValue )
 133         return FALSE;
 134
 135     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 136
 137     // If window is disabled, simply return
 138     if ( !control->IsEnabled() )
 139         return TRUE;
 140
 141     wxString val(control->GetValue());
 142
 143     bool ok = TRUE;
 144
 145     // this format string should contian exactly one '%s'
 146     const wxChar *errormsg = _("'%s' is invalid");
 147
 148     if ( m_validatorStyle & wxFILTER_INCLUDE_LIST )
 149     {
 150         if ( !m_includeList.Member(val) )
 151         {
 152             ok = FALSE;
 153         }
 154     }
 155     else if ( m_validatorStyle & wxFILTER_EXCLUDE_LIST )
 156     {
 157         if ( m_excludeList.Member(val) )
 158         {
 159             ok = FALSE;
 160         }
 161     }
 162     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 163     {
 164         ok = FALSE;
 165
 166         errormsg = _("'%s' should only contain ASCII characters.");
 167     }
 168     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 169     {
 170         ok = FALSE;
 171
 172         errormsg = _("'%s' should only contain alphabetic characters.");
 173     }
 174     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 175     {
 176         ok = FALSE;
 177
 178         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 179     }
 180     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 181     {
 182         ok = FALSE;
 183
 184         errormsg = _("'%s' should be numeric.");
 185     }
 186
 187     if ( !ok )
 188     {
 189         m_validatorWindow->SetFocus();
 190
 191         wxString buf;
 192         buf.Printf(errormsg, val.c_str());
 193
 194         wxMessageBox(buf, _("Validation conflict"),
 195                      wxOK | wxICON_EXCLAMATION, parent);
 196     }
 197
 198     return ok;
 199 }
 200
 201 // Called to transfer data to the window
 202 bool wxTextValidator::TransferToWindow(void)
 203 {
 204     if ( !m_validatorWindow )
 205         return FALSE;
 206     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 207         return FALSE;
 208     if ( !m_stringValue )
 209         return FALSE;
 210
 211     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 212     control->SetValue(* m_stringValue) ;
 213
 214     return TRUE;
 215 }
 216
 217 // Called to transfer data to the window
 218 bool wxTextValidator::TransferFromWindow(void)
 219 {
 220     if ( !m_validatorWindow )
 221         return FALSE;
 222     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 223         return FALSE;
 224     if ( !m_stringValue )
 225         return FALSE;
 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     wxNode *node = list.First() ;
 243     while ( node )
 244     {
 245         wxChar *s = (wxChar *)node->Data();
 246         m_includeList.Add(s);
 247         node = node->Next();
 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     wxNode *node = list.First() ;
 261     while ( node )
 262     {
 263         wxChar *s = (wxChar *)node->Data();
 264         m_excludeList.Add(s);
 265         node = node->Next();
 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.KeyCode();
 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_ASCII) && !isascii(keyCode)) ||
 285               ((m_validatorStyle & wxFILTER_ALPHA) && !isalpha(keyCode)) ||
 286               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !isalnum(keyCode)) ||
 287               ((m_validatorStyle & wxFILTER_NUMERIC) && !isdigit(keyCode)
 288                                 && keyCode != '.' && keyCode != '-')
 289              )
 290            )
 291         {
 292             if ( !wxValidator::IsSilent() )
 293                 wxBell();
 294
 295             // eat message
 296             return;
 297         }
 298     }
 299
 300     event.Skip();
 301 }
 302
 303 static bool wxIsNumeric(const wxString& val)
 304 {
 305     int i;
 306     for ( i = 0; i < (int)val.Length(); i++)
 307     {
 308         if ((!isdigit(val[i])) && (val[i] != '.'))
 309           if(!((i == 0) && (val[i] == '-')))
 310             return FALSE;
 311     }
 312     return TRUE;
 313 }
 314
 315 #endif
 316   // wxUSE_VALIDATORS
 317