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jogshuttleconfig.cpp

/***************************************************************************
 *   Copyright (C) 2010 by Pascal Fleury (fleury@users.sourceforge.net)    *
 *                                                                         *
 *   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          *
 ***************************************************************************/

#include "jogshuttleconfig.h"

#include <vector>
#include <string>
#include <sstream>
#include <cstdio>

#include <stdlib.h>

using std::string;
using std::vector;
using std::stringstream;

// these 2 functions will convert the action maps to and from a string representation not unlike this:
// button1=rewind_one_frame;button2=forward_one_frame;button15=play

static const QChar DELIMITER = ';';
static const QChar KEY_VALUE_SEP = '=';
static const QString BUTTON_PREFIX("button");

QStringList JogShuttleConfig::actionMap(const QString& actionsConfig)
{
  QStringList actionMap;
  QStringList mappings = actionsConfig.split(DELIMITER);

  foreach (const QString& mapping, mappings) {
    QStringList parts = mapping.split(KEY_VALUE_SEP);
    if (parts.size() != 2) {
      fprintf(stderr, "Invalid button configuration: %s", mapping.toAscii().constData());
      continue;
    }
    // skip the 'button' prefix
    int button_id = parts[0].mid(BUTTON_PREFIX.length()).toInt();
    //fprintf(stderr, " - Handling map key='%s' (ID=%d), value='%s'\n", parts[0].data().toAscii(), button_id, parts[1].data().toAscii()); // DBG
    while (actionMap.size() <= button_id)
        actionMap << QString();
    actionMap[button_id] = parts[1];
  }
  
  //for (int i = 0; i < actionMap.size(); i++) fprintf(stderr, "button #%d -> action '%s'\n", i, actionMap[i].data().toAscii());  //DBG
  return actionMap;
}

QString JogShuttleConfig::actionMap(const QStringList& actionMap)
{
  QStringList mappings;
  for (int i=0; i < actionMap.size(); ++i) {
      if (actionMap[i] == "")
          continue;
      mappings << QString("%1%2%3%4").arg(BUTTON_PREFIX).arg(i).arg(KEY_VALUE_SEP).arg(actionMap[i]);
  }

  return mappings.join(DELIMITER);
}

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