consolemenu.hpp

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//-----------------------------------------------------------------------------------------
/*

Fix8 is released under the GNU LESSER GENERAL PUBLIC LICENSE Version 3.

Fix8 Open Source FIX Engine.
Copyright (C) 2010-16 David L. Dight <fix@fix8.org>

Fix8 is free software: you can  redistribute it and / or modify  it under the  terms of the
GNU Lesser General  Public License as  published  by the Free  Software Foundation,  either
version 3 of the License, or (at your option) any later version.

Fix8 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.

You should  have received a copy of the GNU Lesser General Public  License along with Fix8.
If not, see <http://www.gnu.org/licenses/>.

BECAUSE THE PROGRAM IS  LICENSED FREE OF  CHARGE, THERE IS NO  WARRANTY FOR THE PROGRAM, TO
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*/
//-------------------------------------------------------------------------------------------------
#ifndef FIX8_CONSOLEMENU_HPP_
#define FIX8_CONSOLEMENU_HPP_

//-------------------------------------------------------------------------------------------------
namespace FIX8 {

//-------------------------------------------------------------------------------------------------
using MsgList = std::deque<FIX8::Message *>;

//-------------------------------------------------------------------------------------------------
class ConsoleMenu
{
   const F8MetaCntx& _ctx;
   std::istream& _is;
   std::ostream& _os;
   int _lpp;
   static const f8String _opt_keys, _fld_prompt;

public:
   ConsoleMenu (const F8MetaCntx& ctx, std::istream& is=std::cin, std::ostream& os=std::cout, int lpp=20)
      : _ctx(ctx), _is(is), _os(os), _lpp(lpp) {}

   virtual ~ConsoleMenu () {}

   F8API virtual const BaseMsgEntry *SelectMsg() const;
   F8API virtual const FieldTable::Pair *SelectField(const Message *msg, int groupid = 0) const;
   F8API virtual int SelectRealm(const unsigned short fnum, const RealmBase *rb) const;
   F8API Message *SelectFromMsg(const MsgList& lst) const;
   F8API virtual int CreateMsgs(tty_save_state& tty, MsgList& lst) const;
   F8API int CreateMsgsFrom(tty_save_state& tty, MsgList& lst, const MsgList& from) const;
   F8API Message *RemoveMsg(tty_save_state& tty, MsgList& lst) const;
   F8API void EditMsg(tty_save_state& tty, const FieldTable::Pair *fld, Message *msg) const;
   F8API virtual int EditMsgs(tty_save_state& tty, MsgList& lst) const;
   F8API virtual int DeleteMsgs(tty_save_state& tty, MsgList& lst) const;
   F8API virtual int DeleteAllMsgs(tty_save_state& tty, MsgList& lst) const;

   int get_lpp() const { return _lpp; }
   void set_lpp(int lpp) { _lpp = lpp; }

   bool get_yn(const f8String& prompt, bool echo=false) const { return toupper(get_key(prompt, echo)) == 'Y'; }
   char get_key(const f8String& prompt=std::string(), bool echo=false) const
   {
      char ch(0);
      _is.clear();
      if (!prompt.empty())
         _os << prompt << std::flush;
      _is.get(ch);
      if (!_is.bad() && ch != 0x3 && ch != 0xa)
      {
         if (echo)
            _os << ch;
         return ch;
      }
      return 0;
   }
   F8API f8String& GetString(tty_save_state& tty, f8String& to) const;
};

//-------------------------------------------------------------------------------------------------

} // FIX8

#endif // FIX8_CONSOLEMENU_HPP_