make string at least empty (instead of containing garbage) if malloc() failed

[wxWidgets.git] / src / common / valtext.cpp

diff --git a/src/common/valtext.cpp b/src/common/valtext.cpp
index fc7bc3e4c752f86a5a57244ce0a5c6f1f408c7ca..90627aa28dc393b2e088dab9ac66a9098f208aaf 100644 (file)
--- a/src/common/valtext.cpp
+++ b/src/common/valtext.cpp
@@ -5,8 +5,8 @@
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 #ifdef __GNUG__
@@ -20,7 +20,7 @@
   #pragma hdrstop
 #endif
 
-#if wxUSE_VALIDATORS
+#if wxUSE_VALIDATORS && wxUSE_TEXTCTRL
 
 #ifndef WX_PRECOMP
   #include <stdio.h>
@@ -73,19 +73,19 @@ bool wxTextValidator::Copy(const wxTextValidator& val)
     m_validatorStyle = val.m_validatorStyle ;
     m_stringValue = val.m_stringValue ;
 
-    wxNode *node = val.m_includeList.First() ;
+    wxStringList::Node *node = val.m_includeList.GetFirst() ;
     while ( node )
     {
-        wxChar *s = (wxChar *)node->Data();
+        wxChar *s = node->GetData();
         m_includeList.Add(s);
-        node = node->Next();
+        node = node->GetNext();
     }
-    node = val.m_excludeList.First() ;
+    node = val.m_excludeList.GetFirst() ;
     while ( node )
     {
-        wxChar *s = (wxChar *)node->Data();
+        wxChar *s = node->GetData();
         m_excludeList.Add(s);
-        node = node->Next();
+        node = node->GetNext();
     }
     return TRUE;
 }
@@ -175,13 +175,13 @@ bool wxTextValidator::Validate(wxWindow *parent)
     {
         //it's only ok to have the members of the list
         errormsg = _("'%s' is invalid");
-        ok = FALSE;    
+        ok = FALSE;
     }
     else if ( (m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(val))
     {
         // it's only ok to have non-members of the list
         errormsg = _("'%s' is invalid");
-        ok = FALSE;    
+        ok = FALSE;
     }
 
     if ( !ok )
@@ -206,6 +206,9 @@ bool wxTextValidator::TransferToWindow(void)
     if( !CheckValidator() )
         return FALSE;
 
+    if (!m_stringValue)
+        return TRUE;
+
     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
     control->SetValue(* m_stringValue) ;
 
@@ -218,6 +221,9 @@ bool wxTextValidator::TransferFromWindow(void)
     if( !CheckValidator() )
         return FALSE;
 
+    if (!m_stringValue)
+        return TRUE;
+
     wxTextCtrl *control = (wxTextCtrl *) m_validatorWindow ;
     * m_stringValue = control->GetValue() ;
 
@@ -233,12 +239,12 @@ void wxTextValidator::SetIncludeList(const wxStringList& list)
 
     m_includeList.Clear();
     // TODO: replace with =
-    wxNode *node = list.First() ;
+    wxStringList::Node     *node = list.GetFirst();
     while ( node )
     {
-        wxChar *s = (wxChar *)node->Data();
+        wxChar *s = node->GetData();
         m_includeList.Add(s);
-        node = node->Next();
+        node = node->GetNext();
     }
 }
 
@@ -251,12 +257,12 @@ void wxTextValidator::SetExcludeList(const wxStringList& list)
 
     m_excludeList.Clear();
     // TODO: replace with =
-    wxNode *node = list.First() ;
+    wxStringList::Node  *node = list.GetFirst() ;
     while ( node )
     {
-        wxChar *s = (wxChar *)node->Data();
+        wxChar *s = node->GetData();
         m_excludeList.Add(s);
-        node = node->Next();
+        node = node->GetNext();
     }
 }
 
@@ -269,13 +275,13 @@ void wxTextValidator::OnChar(wxKeyEvent& event)
 
     if ( m_validatorWindow )
     {
-        int keyCode = (int)event.KeyCode();
+        int keyCode = event.GetKeyCode();
 
         // we don't filter special keys and Delete
         if (
              !(keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode > WXK_START) &&
              (
-                         ((m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(wxString((char) keyCode, 1))) ||
+              ((m_validatorStyle & wxFILTER_INCLUDE_CHAR_LIST) && !IsInCharIncludeList(wxString((char) keyCode, 1))) ||
               ((m_validatorStyle & wxFILTER_EXCLUDE_CHAR_LIST) && !IsNotInCharExcludeList(wxString((char) keyCode, 1))) ||
               ((m_validatorStyle & wxFILTER_ASCII) && !isascii(keyCode)) ||
               ((m_validatorStyle & wxFILTER_ALPHA) && !wxIsalpha(keyCode)) ||
@@ -303,8 +309,7 @@ static bool wxIsNumeric(const wxString& val)
     {
         // Allow for "," (French) as well as "." -- in future we should
         // use wxSystemSettings or other to do better localisation
-        if ((!isdigit(val[i])) && (val[i] != '.') && (val[i] != ','))
-          if(!((i == 0) && (val[i] == '-')))
+        if ((!isdigit(val[i])) && (val[i] != '.') && (val[i] != ',') && (val[i] != wxT('e')) && (val[i] != wxT('E')) && (val[i] != wxT('+')) && (val[i] != wxT('-')))
             return FALSE;
     }
     return TRUE;
@@ -333,4 +338,4 @@ bool wxTextValidator::IsNotInCharExcludeList(const wxString& val)
 }
 
 #endif
-  // wxUSE_VALIDATORS
+  // wxUSE_VALIDATORS && wxUSE_TEXTCTRL