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 <stdio.h>
  25     #include "wx/textctrl.h"
  26     #include "wx/utils.h"
  27     #include "wx/msgdlg.h"
  28     #include "wx/intl.h"
  29 #endif
  30
  31 #include "wx/valtext.h"
  32
  33 #include <ctype.h>
  34 #include <string.h>
  35 #include <stdlib.h>
  36
  37 #ifdef __SALFORDC__
  38     #include <clib.h>
  39 #endif
  40
  41 #if !USE_SHARED_LIBRARY
  42 IMPLEMENT_DYNAMIC_CLASS(wxTextValidator, wxValidator)
  43
  44 BEGIN_EVENT_TABLE(wxTextValidator, wxValidator)
  45     EVT_CHAR(wxTextValidator::OnChar)
  46 END_EVENT_TABLE()
  47 #endif
  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 (!isalpha(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 (!isalnum(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 ( !m_validatorWindow )
 123         return FALSE;
 124     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 125         return FALSE;
 126     if ( !m_stringValue )
 127         return FALSE;
 128
 129     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 130
 131     // If window is disabled, simply return
 132     if ( !control->IsEnabled() )
 133         return TRUE;
 134
 135     wxString val(control->GetValue());
 136
 137     bool ok = TRUE;
 138
 139     // this format string should contian exactly one '%s'
 140     const wxChar *errormsg = _("'%s' is invalid");
 141
 142     if ( m_validatorStyle & wxFILTER_INCLUDE_LIST )
 143     {
 144         if ( !m_includeList.Member(val) )
 145         {
 146             ok = FALSE;
 147         }
 148     }
 149     else if ( m_validatorStyle & wxFILTER_EXCLUDE_LIST )
 150     {
 151         if ( m_excludeList.Member(val) )
 152         {
 153             ok = FALSE;
 154         }
 155     }
 156     else if ( (m_validatorStyle & wxFILTER_ASCII) && !val.IsAscii() )
 157     {
 158         ok = FALSE;
 159
 160         errormsg = _("'%s' should only contain ASCII characters.");
 161     }
 162     else if ( (m_validatorStyle & wxFILTER_ALPHA) && !wxIsAlpha(val) )
 163     {
 164         ok = FALSE;
 165
 166         errormsg = _("'%s' should only contain alphabetic characters.");
 167     }
 168     else if ( (m_validatorStyle & wxFILTER_ALPHANUMERIC) && !wxIsAlphaNumeric(val))
 169     {
 170         ok = FALSE;
 171
 172         errormsg = _("'%s' should only contain alphabetic or numeric characters.");
 173     }
 174     else if ( (m_validatorStyle & wxFILTER_NUMERIC) && !wxIsNumeric(val))
 175     {
 176         ok = FALSE;
 177
 178         errormsg = _("'%s' should be numeric.");
 179     }
 180
 181     if ( !ok )
 182     {
 183         m_validatorWindow->SetFocus();
 184
 185         wxString buf;
 186         buf.Printf(errormsg, val.c_str());
 187
 188         wxMessageBox(buf, _("Validation conflict"),
 189                      wxOK | wxICON_EXCLAMATION, parent);
 190     }
 191
 192     return ok;
 193 }
 194
 195 // Called to transfer data to the window
 196 bool wxTextValidator::TransferToWindow(void)
 197 {
 198     if ( !m_validatorWindow )
 199         return FALSE;
 200     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 201         return FALSE;
 202     if ( !m_stringValue )
 203         return FALSE;
 204
 205     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 206     control->SetValue(* m_stringValue) ;
 207
 208     return TRUE;
 209 }
 210
 211 // Called to transfer data to the window
 212 bool wxTextValidator::TransferFromWindow(void)
 213 {
 214     if ( !m_validatorWindow )
 215         return FALSE;
 216     if ( !m_validatorWindow->IsKindOf(CLASSINFO(wxTextCtrl)) )
 217         return FALSE;
 218     if ( !m_stringValue )
 219         return FALSE;
 220
 221     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
 222     * m_stringValue = control->GetValue() ;
 223
 224     return TRUE;
 225 }
 226
 227 void wxTextValidator::SetIncludeList(const wxStringList& list)
 228 {
 229 /*
 230     if ( !M_VTEXTDATA )
 231         return;
 232 */
 233
 234     m_includeList.Clear();
 235     // TODO: replace with =
 236     wxNode *node = list.First() ;
 237     while ( node )
 238     {
 239         wxChar *s = (wxChar *)node->Data();
 240         m_includeList.Add(s);
 241         node = node->Next();
 242     }
 243 }
 244
 245 void wxTextValidator::SetExcludeList(const wxStringList& list)
 246 {
 247 /*
 248     if ( !M_VTEXTDATA )
 249         return;
 250 */
 251
 252     m_excludeList.Clear();
 253     // TODO: replace with =
 254     wxNode *node = list.First() ;
 255     while ( node )
 256     {
 257         wxChar *s = (wxChar *)node->Data();
 258         m_excludeList.Add(s);
 259         node = node->Next();
 260     }
 261 }
 262
 263 void wxTextValidator::OnChar(wxKeyEvent& event)
 264 {
 265 /*
 266     if ( !M_VTEXTDATA )
 267         return;
 268 */
 269
 270     if ( m_validatorWindow )
 271     {
 272         int keyCode = event.KeyCode();
 273
 274         // we don't filter special keys and Delete
 275         if (
 276              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
 277              (
 278               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
 279               ((m_validatorStyle & wxFILTER_ALPHA) && !isalpha(keyCode)) ||
 280               ((m_validatorStyle & wxFILTER_ALPHANUMERIC) && !isalnum(keyCode)) ||
 281               ((m_validatorStyle & wxFILTER_NUMERIC) && !isdigit(keyCode)
 282                                 && keyCode != '.' && keyCode != '-')
 283              )
 284            )
 285         {
 286             if ( !wxValidator::IsSilent() )
 287                 wxBell();
 288
 289             // eat message
 290             return;
 291         }
 292     }
 293
 294     event.Skip();
 295 }
 296
 297 static bool wxIsNumeric(const wxString& val)
 298 {
 299     int i;
 300     for ( i = 0; i < (int)val.Length(); i++)
 301     {
 302         if ((!isdigit(val[i])) && (val[i] != '.'))
 303           if(!((i == 0) && (val[i] == '-')))
 304             return FALSE;
 305     }
 306     return TRUE;
 307 }
 308