// -*- mode: c++; c-file-style: "linux"; c-basic-offset: 2; indent-tabs-mode: nil -*-
//
//  Copyright (C) 2004-2015 Andrej Vodopivec <andrej.vodopivec@gmail.com>
//
//  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, write to the Free Software
//  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
//  SPDX-License-Identifier: GPL-2.0+

#ifndef BTEXTCTRL_H
#define BTEXTCTRL_H

#include "precomp.h"
#include <wx/wx.h>
#include <wx/weakref.h>
#include "Configuration.h"

/*! A wxTextCtrl with parenthesis matching

 */
class BTextCtrl : public wxTextCtrl
{
public:
  BTextCtrl(wxWindow *parent,
            wxWindowID id,
            Configuration *cfg,
            const wxString &value = wxEmptyString,
            const wxPoint &pos = wxDefaultPosition,
            const wxSize &size = wxDefaultSize,
            long style = 0);

  virtual ~BTextCtrl();

  void SetSkipTab(bool skip)
    {
      m_skipTab = skip;
    }

  /*! The last BTextCtrl that got the keyboard focus, if it still exists.

    The symbols sidebars use this to route their button presses: if a text
    control (e.g. a wizard field) had the focus last, the symbol is inserted
    there instead of into the worksheet.

    Held as a wxWeakRef, which nulls itself when the control is destroyed:
    a closed wizard can therefore never leave a dangling pointer here, and no
    destructor needs to unregister the control anywhere (unregistering via the
    Configuration object crashed on shutdown when the Configuration died
    first, see issue #2027).
  */
  static wxTextCtrl *LastActive() { return m_lastActive; }

  //! Route sidebar button presses back to the worksheet again.
  static void ForgetLastActive() { m_lastActive = nullptr; }

private:
  //! See LastActive()
  static wxWeakRef<wxTextCtrl> m_lastActive;

  bool m_skipTab = true;

  bool MatchParenthesis(int code);

  void CloseParenthesis(const wxString &open, const wxString &close, bool fromOpen);

  void OnChar(wxKeyEvent &event);
  void OnFocus(wxFocusEvent &event);

  Configuration *m_config = NULL;
};

#endif // BTEXTCTRL_H
