/*

  This file is part of serialplot.

  serialplot 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.

  serialplot 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 serialplot.  If not, see <http://www.gnu.org/licenses/>.

*/

#include <QKeyEvent>

#include <QtDebug>

#include "commandedit.h"

class HexCommandValidator : public QRegExpValidator

{

    input = input.toUpper();

    // don't let pos to be altered at this stage

    int orgPos = pos;

    auto r = QRegExpValidator::validate(input, pos);

    pos = orgPos;

    // try fixing up spaces

    if (r != QValidator::Acceptable)

    {

        input = input.replace(" ", "");

        input.replace(QRegExp("([0-9A-F]{2}(?!$))"), "\\1 ");

        if (pos == input.size()-1) pos = input.size();

        r = QRegExpValidator::validate(input, pos);

    }

    return r;

}

CommandEdit::CommandEdit(QWidget *parent) :

    QLineEdit(parent)

{

    hexValidator = new HexCommandValidator(this);

    ascii_mode = true;

    setValidator(asciiValidator);

}

CommandEdit::~CommandEdit()

{

    delete hexValidator;

}

static QString unEscape(QString str);

static QString escape(QString str);

void CommandEdit::setMode(bool ascii)

{

    ascii_mode = ascii;

    if (ascii)

    {

        setValidator(asciiValidator);

        auto hexText = text().remove(" ");

        // try patching HEX string in case of missing nibble so that

        // input doesn't turn into gibberish

        if (hexText.size() % 2 == 1)

        {