validators.cpp

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2013 Wayne Stambaugh <[email protected]>
 * Copyright (C) 2004-2019 KiCad Developers, see change_log.txt for contributors.
 * Copyright (C) 2018 CERN
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, you may find one here:
 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
 * or you may search the http://www.gnu.org website for the version 2 license,
 * or you may write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
 */
 
#include <string_utils.h>
#include <confirm.h>
#include <validators.h>
#include <template_fieldnames.h>
 
#include <wx/grid.h>
#include <wx/textctrl.h>
#include <wx/textentry.h>
#include <wx/log.h>
#include <wx/combo.h>
#include <wx/msgdlg.h>
 
 
FOOTPRINT_NAME_VALIDATOR::FOOTPRINT_NAME_VALIDATOR( wxString* aValue ) :
 wxTextValidator( wxFILTER_EXCLUDE_CHAR_LIST, aValue )
{
 // This list of characters follows the string from footprint.cpp which, in turn mimics the
 // strings from lib_id.cpp
 // TODO: Unify forbidden character lists
 wxString illegalChars = wxS( "%$<>\t\n\r\"\\/:" );
 SetCharExcludes( illegalChars );
 }
 
 
FILE_NAME_WITH_PATH_CHAR_VALIDATOR::FILE_NAME_WITH_PATH_CHAR_VALIDATOR( wxString* aValue ) :
 wxTextValidator( wxFILTER_EXCLUDE_CHAR_LIST | wxFILTER_EMPTY, aValue )
{
 // The Windows (DOS) file system forbidden characters already include the forbidden
 // file name characters for both Posix and OSX systems. The characters *?|"<> are
 // illegal and filtered by the validator, but /\: are valid (\ and : only on Windows.
 wxString illegalChars = wxFileName::GetForbiddenChars( wxPATH_DOS );
 wxTextValidator nameValidator( wxFILTER_EXCLUDE_CHAR_LIST );
 wxArrayString illegalCharList;
 
 for( unsigned i = 0; i < illegalChars.size(); i++ )
 {
 if( illegalChars[i] == '/' )
 continue;
 
#if defined (__WINDOWS__)
 if( illegalChars[i] == '\\' || illegalChars[i] == ':' )
 continue;
#endif
 illegalCharList.Add( wxString( illegalChars[i] ) );
 }
 
 SetExcludes( illegalCharList );
}
 
 
ENV_VAR_NAME_VALIDATOR::ENV_VAR_NAME_VALIDATOR( wxString* aValue ) :
 wxTextValidator()
{
 Connect( wxEVT_CHAR, wxKeyEventHandler( ENV_VAR_NAME_VALIDATOR::OnChar ) );
}
 
 
ENV_VAR_NAME_VALIDATOR::ENV_VAR_NAME_VALIDATOR( const ENV_VAR_NAME_VALIDATOR& val )
 : wxTextValidator()
{
 wxValidator::Copy( val );
 
 Connect( wxEVT_CHAR, wxKeyEventHandler( ENV_VAR_NAME_VALIDATOR::OnChar ) );
}
 
 
ENV_VAR_NAME_VALIDATOR::~ENV_VAR_NAME_VALIDATOR()
{
 Disconnect( wxEVT_CHAR, wxKeyEventHandler( ENV_VAR_NAME_VALIDATOR::OnChar ) );
}
 
 
void ENV_VAR_NAME_VALIDATOR::OnChar( wxKeyEvent& aEvent )
{
 if( !m_validatorWindow )
 {
 aEvent.Skip();
 return;
 }
 
 int keyCode = aEvent.GetKeyCode();
 
 // we don't filter special keys and delete
 if( keyCode < WXK_SPACE || keyCode == WXK_DELETE || keyCode >= WXK_START )
 {
 aEvent.Skip();
 return;
 }
 
 wxUniChar c = (wxUChar) keyCode;
 
 if( c == wxT( '_' ) )
 {
 // OK anywhere
 aEvent.Skip();
 }
 else if( wxIsdigit( c ) )
 {
 // not as first character
 long from, to;
 GetTextEntry()->GetSelection( &from, &to );
 
 if( from < 1 )
 wxBell();
 else
 aEvent.Skip();
 }
 else if( wxIsalpha( c ) )
 {
 // Capitals only.
 
 if( wxIslower( c ) )
 {
 // You may wonder why this scope is so twisted, so make yourself comfortable and read:
 // 1. Changing the keyCode and/or uniChar in the event and passing it on
 // doesn't work. Some platforms look at the original copy as long as the event
 // isn't vetoed.
 // 2. Inserting characters by hand does not move the cursor, meaning either you insert
 // text backwards (lp:#1798869) or always append, no matter where is the cursor.
 // wxTextEntry::{Get/Set}InsertionPoint() do not work at all here.
 // 3. There is wxTextEntry::ForceUpper(), but it is not yet available in common
 // wxWidgets packages.
 //
 // So here we are, with a command event handler that converts
 // the text to upper case upon every change.
 wxTextCtrl* textCtrl = dynamic_cast<wxTextCtrl*>( GetTextEntry() );
 
 if( textCtrl )
 {
 textCtrl->Connect( textCtrl->GetId(), wxEVT_COMMAND_TEXT_UPDATED,
 wxCommandEventHandler( ENV_VAR_NAME_VALIDATOR::OnTextChanged ) );
 }
 }
 
 aEvent.Skip();
 }
 else
 {
 wxBell();
 }
}
 
 
void ENV_VAR_NAME_VALIDATOR::OnTextChanged( wxCommandEvent& event )
{
 wxTextCtrl* textCtrl = dynamic_cast<wxTextCtrl*>( event.GetEventObject() );
 
 if( textCtrl )
 {
 if( !textCtrl->IsModified() )
 return;
 
 long insertionPoint = textCtrl->GetInsertionPoint();
 textCtrl->ChangeValue( textCtrl->GetValue().Upper() );
 textCtrl->SetInsertionPoint( insertionPoint );
 textCtrl->Disconnect( textCtrl->GetId(), wxEVT_COMMAND_TEXT_UPDATED );
 }
 
 event.Skip();
}
 
 
bool REGEX_VALIDATOR::Validate( wxWindow* aParent )
{
 // If window is disabled, simply return
 if( !m_validatorWindow->IsEnabled() )
 return true;
 
 wxTextEntry* const textEntry = GetTextEntry();
 
 if( !textEntry )
 return false;
 
 bool valid = true;
 const wxString& value = textEntry->GetValue();
 
 if( m_regEx.Matches( value ) )
 {
 size_t start, len;
 m_regEx.GetMatch( &start, &len );
 
 if( start != 0 || len != value.Length() ) // whole string must match
 valid = false;
 }
 else // no match at all
 {
 valid = false;
 }
 
 if( !valid )
 {
 m_validatorWindow->SetFocus();
 DisplayError( aParent, wxString::Format( _( "Incorrect value: %s" ), value ) );
 return false;
 }
 
 return true;
}
 
 
void REGEX_VALIDATOR::compileRegEx( const wxString& aRegEx, int aFlags )
{
 if( !m_regEx.Compile( aRegEx, aFlags ) )
 {
 throw std::runtime_error( "REGEX_VALIDATOR: Invalid regular expression: "
 + aRegEx.ToStdString() );
 }
 
 m_regExString = aRegEx;
 m_regExFlags = aFlags;
}
 
 
NETNAME_VALIDATOR::NETNAME_VALIDATOR( wxString *aVal ) :
 wxTextValidator(),
 m_allowSpaces( false )
{
}
 
 
NETNAME_VALIDATOR::NETNAME_VALIDATOR( const NETNAME_VALIDATOR& aValidator ) :
 wxTextValidator( aValidator ),
 m_allowSpaces( aValidator.m_allowSpaces )
{
}
 
 
NETNAME_VALIDATOR::NETNAME_VALIDATOR( bool aAllowSpaces ) :
 wxTextValidator(),
 m_allowSpaces( aAllowSpaces )
{
}
 
 
bool NETNAME_VALIDATOR::Validate( wxWindow *aParent )
{
 // If window is disabled, simply return
 if ( !m_validatorWindow->IsEnabled() )
 return true;
 
 wxTextEntry * const text = GetTextEntry();
 
 if ( !text )
 return false;
 
 const wxString& errormsg = IsValid( text->GetValue() );
 
 if( !errormsg.empty() )
 {
 m_validatorWindow->SetFocus();
 wxMessageBox( errormsg, _( "Invalid signal name" ), wxOK | wxICON_EXCLAMATION, aParent );
 return false;
 }
 
 return true;
}
 
 
wxString NETNAME_VALIDATOR::IsValid( const wxString& str ) const
{
 if( str.Contains( '\r' ) || str.Contains( '\n' ) )
 return _( "Signal names cannot contain CR or LF characters" );
 
 if( !m_allowSpaces && ( str.Contains( ' ' ) || str.Contains( '\t' ) ) )
 return _( "Signal names cannot contain spaces" );
 
 return wxString();
}
 
 
void KIUI::ValidatorTransferToWindowWithoutEvents( wxValidator& aValidator )
{
 wxWindow* ctrl = aValidator.GetWindow();
 
 wxCHECK_RET( ctrl != nullptr, wxS( "Transferring validator data without a control" ) );
 
 wxEventBlocker orient_update_blocker( ctrl, wxEVT_ANY );
 aValidator.TransferToWindow();
}
 
 
FIELD_VALIDATOR::FIELD_VALIDATOR( int aFieldId, wxString* aValue ) :
 wxTextValidator( wxFILTER_EXCLUDE_CHAR_LIST, aValue ), m_fieldId( aFieldId )
{
 // Fields cannot contain carriage returns, line feeds, or tabs.
 wxString excludes( wxT( "\r\n\t" ) );
 
 // The reference and sheet name fields cannot contain spaces.
 if( aFieldId == REFERENCE_FIELD )
 {
 excludes += wxT( " " );
 }
 else if( m_fieldId == SHEETNAME_V )
 {
 excludes += wxT( "/" );
 }
 
 long style = GetStyle();
 
 // The reference, sheetname and sheetfilename fields cannot be empty.
 if( aFieldId == REFERENCE_FIELD || aFieldId == SHEETNAME_V || aFieldId == SHEETFILENAME_V )
 {
 style |= wxFILTER_EMPTY;
 }
 
 SetStyle( style );
 SetCharExcludes( excludes );
}
 
 
FIELD_VALIDATOR::FIELD_VALIDATOR( const FIELD_VALIDATOR& aValidator ) :
 wxTextValidator( aValidator ), m_fieldId( aValidator.m_fieldId )
{
}
 
 
bool FIELD_VALIDATOR::Validate( wxWindow* aParent )
{
 // If window is disabled, simply return
 if( !m_validatorWindow->IsEnabled() )
 return true;
 
 wxTextEntry* const text = GetTextEntry();
 
 if( !text )
 return false;
 
 wxString val( text->GetValue() );
 wxString msg;
 
 if( HasFlag( wxFILTER_EMPTY ) && val.empty() )
 msg.Printf( _( "The value of the field cannot be empty." ) );
 
 if( HasFlag( wxFILTER_EXCLUDE_CHAR_LIST ) && ContainsExcludedCharacters( val ) )
 {
 wxArrayString badCharsFound;
 
 for( const wxUniCharRef& excludeChar : GetCharExcludes() )
 {
 if( val.Find( excludeChar ) != wxNOT_FOUND )
 {
 if( excludeChar == '\r' )
 badCharsFound.Add( _( "carriage return" ) );
 else if( excludeChar == '\n' )
 badCharsFound.Add( _( "line feed" ) );
 else if( excludeChar == '\t' )
 badCharsFound.Add( _( "tab" ) );
 else if( excludeChar == ' ' )
 badCharsFound.Add( _( "space" ) );
 else
 badCharsFound.Add( wxString::Format( wxT( "'%c'" ), excludeChar ) );
 }
 }
 
 wxString badChars;
 
 for( size_t i = 0; i < badCharsFound.GetCount(); i++ )
 {
 if( !badChars.IsEmpty() )
 {
 if( badCharsFound.GetCount() == 2 )
 {
 badChars += _( " or " );
 }
 else
 {
 if( i < badCharsFound.GetCount() - 2 )
 badChars += _( ", or " );
 else
 badChars += wxT( ", " );
 }
 }
 
 badChars += badCharsFound.Item( i );
 }
 
 switch( m_fieldId )
 {
 case REFERENCE_FIELD:
 msg.Printf( _( "The reference designator cannot contain %s character(s)." ), badChars );
 break;
 
 case VALUE_FIELD:
 msg.Printf( _( "The value field cannot contain %s character(s)." ), badChars );
 break;
 
 case FOOTPRINT_FIELD:
 msg.Printf( _( "The footprint field cannot contain %s character(s)." ), badChars );
 break;
 
 case DATASHEET_FIELD:
 msg.Printf( _( "The datasheet field cannot contain %s character(s)." ), badChars );
 break;
 
 case SHEETNAME_V:
 msg.Printf( _( "The sheet name cannot contain %s character(s)." ), badChars );
 break;
 
 case SHEETFILENAME_V:
 msg.Printf( _( "The sheet filename cannot contain %s character(s)." ), badChars );
 break;
 
 default:
 msg.Printf( _( "The field cannot contain %s character(s)." ), badChars );
 break;
 };
 }
 else if( m_fieldId == REFERENCE_FIELD && val.Contains( wxT( "${" ) ) )
 {
 msg.Printf( _( "The reference designator cannot contain text variable references" ) );
 }
 
 if( !msg.empty() )
 {
 m_validatorWindow->SetFocus();
 
 wxMessageBox( msg, _( "Field Validation Error" ), wxOK | wxICON_EXCLAMATION, aParent );
 
 return false;
 }
 
 return true;
}