/*
 * This file is part of OpenModelica.
 *
 * Copyright (c) 1998-CurrentYear, Linkoping University,
 * Department of Computer and Information Science,
 * SE-58183 Linkoping, Sweden.
 *
 * All rights reserved.
 *
 * THIS PROGRAM IS PROVIDED UNDER THE TERMS OF GPL VERSION 3
 * AND THIS OSMC PUBLIC LICENSE (OSMC-PL).
 * ANY USE, REPRODUCTION OR DISTRIBUTION OF THIS PROGRAM CONSTITUTES RECIPIENT'S
 * ACCEPTANCE OF THE OSMC PUBLIC LICENSE.
 *
 * The OpenModelica software and the Open Source Modelica
 * Consortium (OSMC) Public License (OSMC-PL) are obtained
 * from Linkoping University, either from the above address,
 * from the URLs: http://www.ida.liu.se/projects/OpenModelica or
 * http://www.openmodelica.org, and in the OpenModelica distribution.
 * GNU version 3 is obtained from: http://www.gnu.org/copyleft/gpl.html.
 *
 * This program is distributed WITHOUT ANY WARRANTY; without
 * even the implied warranty of  MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE, EXCEPT AS EXPRESSLY SET FORTH
 * IN THE BY RECIPIENT SELECTED SUBSIDIARY LICENSE CONDITIONS
 * OF OSMC-PL.
 *
 * See the full OSMC Public License conditions for more details.
 *
 * Main Author 2011: Adeel Asghar
 *
 */

#include "Legend.h"
#include "iostream"
#if QWT_VERSION < 0x060100
#include "qwt_legend_item.h"
#else
#include "qwt_legend_label.h"
#endif

using namespace OMPlot;

Legend::Legend(Plot *pParent)
{
  mpPlot = pParent;
  mpPlotCurve = 0;

  mpSetupAction = new QAction(tr("Setup"), this);
  connect(mpSetupAction, SIGNAL(triggered()), SLOT(showSetupDialog()));

  setContextMenuPolicy(Qt::CustomContextMenu);
  connect(this, SIGNAL(customContextMenuRequested(QPoint)), SLOT(legendMenu(QPoint)));
}

Legend::~Legend()
{

}

void Legend::showSetupDialog()
{
  if (mpPlotCurve)
  {
    mpPlot->getParentPlotWindow()->showSetupDialog(mpPlotCurve->getNameStructure());
    mpPlotCurve = 0;
  }
}

void Legend::legendMenu(const QPoint& pos)
{
#if QWT_VERSION >= 0x060100
  QwtPlotItem *pQwtPlotItem = qvariant_cast<QwtPlotItem*>(itemInfo(childAt(pos)));
  mpPlotCurve = dynamic_cast<PlotCurve*>(pQwtPlotItem);
#else
  mpPlotCurve = dynamic_cast<PlotCurve*>(find(childAt(pos)));
#endif
  if (mpPlotCurve)
  {
    /* context menu */
    QMenu menu(mpPlot);
    menu.addAction(mpSetupAction);
    menu.exec(mapToGlobal(pos));
  }
}
