/*
 * Project: MoleCuilder
 * Description: creates and alters molecular systems
 * Copyright (C)  2010-2012 University of Bonn. All rights reserved.
 * 
 *
 *   This file is part of MoleCuilder.
 *
 *    MoleCuilder 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.
 *
 *    MoleCuilder 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 MoleCuilder.  If not, see <http://www.gnu.org/licenses/>.
 */

/*
 * QtToolBar.cpp
 *
 *  Created on: Apr 26, 2012
 *      Author: ankele
 */

// include config.h
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "QtToolBar.hpp"

#include "CodePatterns/MemDebug.hpp"

#include "CodePatterns/Observer/Notification.hpp"

#include "Actions/ActionQueue.hpp"

QtToolBar::QtToolBar(QWidget * _parent) :
  QToolBar(_parent),
  Observer("QToolBar"),
  ActionQueue_observing(false),
  undoaction(addActionItem("undo", "undo the last Action", "edit-undo")),
  redoaction(addActionItem("redo", "redo the last Action", "edit-redo"))
{
  // gray out undo/redo buttons initially
  undoaction->setEnabled(false);
  redoaction->setEnabled(false);

  // sign in
  MoleCuilder::ActionQueue::getInstance().signOn(this, MoleCuilder::ActionQueue::ActionQueued);
  ActionQueue_observing = true;
}


QtToolBar::~QtToolBar()
{
  // sign off
  if (ActionQueue_observing)
    MoleCuilder::ActionQueue::getInstance().signOff(this, MoleCuilder::ActionQueue::ActionQueued);
}


QAction * QtToolBar::addActionItem(
    const std::string &token,
    const std::string &description,
    const std::string &icon_name)
{
  QAction *action = addAction(QString(description.c_str()));
  action->setIcon(FavActions.getIcon(token, icon_name));
  action->setToolTip(QString(description.c_str()));
  QtMenuPipe *pipe = new QtMenuPipe(token,action);
  QObject::connect(action, SIGNAL(triggered()),pipe,SLOT(called()));
  plumbing.push_back(pipe);
  present_actions.insert( token );
  return action;
}

void QtToolBar::addFavoriteActionItems(const unsigned int _max)
{
  // separate favorite actions
  addSeparator();
  FavActions.addToolBarActions(*this, _max);
}

void QtToolBar::update(Observable *publisher)
{
  ASSERT(0, "QtToolBar::update() - this should never be called, we are only subscribed to channels.");
}

void QtToolBar::subjectKilled(Observable *publisher)
{
  ActionQueue_observing = false;
}

void QtToolBar::recieveNotification(Observable *publisher, Notification_ptr notification)
{
  if (dynamic_cast<MoleCuilder::ActionQueue *>(publisher) != NULL) {
    switch(notification->getChannelNo()) {
      case MoleCuilder::ActionQueue::ActionQueued:
        undoaction->setEnabled(MoleCuilder::ActionQueue::getInstance().canUndo());
        redoaction->setEnabled(MoleCuilder::ActionQueue::getInstance().canRedo());
        break;
      default:
        ASSERT(0, "QtToolBar::recieveNotification() - cannot get here, not subscribed to channel "
            +toString(notification->getChannelNo()));
        break;
    }
  } else {
    ASSERT(0, "QtToolBar::recieveNotification() - cannot get here, we are only subscribed to ActionQueue.");
  }
}