kicad/common/widgets/text_ctrl_eval.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2017-2018 CERN
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* 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 3
* 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-3.0.html
* or you may search the http://www.gnu.org website for the version 3 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <widgets/text_ctrl_eval.h>
TEXT_CTRL_EVAL::TEXT_CTRL_EVAL( wxWindow* aParent, wxWindowID aId, const
wxString& aValue, const wxPoint& aPos, const wxSize& aSize, long aStyle,
const wxValidator& aValidator, const wxString& aName )
: wxTextCtrl( aParent, aId, aValue, aPos, aSize, aStyle | wxTE_PROCESS_ENTER, aValidator, aName )
{
Connect( wxEVT_SET_FOCUS,
wxFocusEventHandler( TEXT_CTRL_EVAL::onTextFocusGet ), NULL, this );
Connect( wxEVT_KILL_FOCUS,
wxFocusEventHandler( TEXT_CTRL_EVAL::onTextFocusLost ), NULL, this );
Connect( wxEVT_TEXT_ENTER,
wxCommandEventHandler( TEXT_CTRL_EVAL::onTextEnter ), NULL, this );
}
void TEXT_CTRL_EVAL::SetValue( const wxString& aValue )
{
wxTextCtrl::SetValue( aValue );
m_eval.clear( this );
}
void TEXT_CTRL_EVAL::onTextFocusGet( wxFocusEvent& aEvent )
{
auto oldStr = m_eval.textInput( this );
if( oldStr )
wxTextCtrl::SetValue( wxString::FromUTF8( oldStr ) );
aEvent.Skip();
}
void TEXT_CTRL_EVAL::onTextFocusLost( wxFocusEvent& aEvent )
{
evaluate();
aEvent.Skip();
}
void TEXT_CTRL_EVAL::onTextEnter( wxCommandEvent& aEvent )
{
evaluate();
// Accept the changes and close the parent dialog
wxCommandEvent event( wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK );
wxPostEvent( GetParent(), event );
}
void TEXT_CTRL_EVAL::evaluate()
{
if( GetValue().IsEmpty() )
wxTextCtrl::SetValue( "0" );
if( m_eval.process( GetValue().mb_str(), this ) )
wxTextCtrl::SetValue( wxString::FromUTF8( m_eval.result() ) );
}