text_ctrl_eval.h

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/*
 * This program source code file is part of KiCad, a free EDA CAD application.
 *
 * Copyright (C) 2017-2021 CERN
 * Copyright The KiCad Developers, see AUTHORS.txt for contributors.
 * @author Maciej Suminski <[email protected]>
 *
 * 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
 */
 
#pragma once
 
#include <optional>
#include <functional>
#include <wx/window.h>
#include <wx/textctrl.h>
#include <libeval/numeric_evaluator.h>

 
class TEXT_CTRL_EVAL : public wxTextCtrl
{
public:
    TEXT_CTRL_EVAL( wxWindow* aParent, wxWindowID aId, const wxString& aValue = wxEmptyString,
                    const wxPoint& aPos = wxDefaultPosition, const wxSize& aSize = wxDefaultSize,
                    long aStyle = 0, const wxValidator& aValidator = wxDefaultValidator,
                    const wxString& aName = wxTextCtrlNameStr );
 
    virtual ~TEXT_CTRL_EVAL()
    {
    }
 
    void SetCustomEval( std::function<void( TEXT_CTRL_EVAL* aCtrl )> aCustomEval )
    {
        m_customEval = std::move( aCustomEval );
    }

    void SetValue( const wxString& aValue ) override;
 
protected:
    NUMERIC_EVALUATOR m_eval;
 
    void onTextFocusGet( wxFocusEvent& aEvent );
    void onTextFocusLost( wxFocusEvent& aEvent );
    void onTextEnter( wxCommandEvent& aEvent );
 
    void evaluate();
 
private:
    std::optional<std::function<void( TEXT_CTRL_EVAL* aCtrl )>> m_customEval;
};