////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2011-2022 The Octave Project Developers
//
// See the file COPYRIGHT.md in the top-level directory of this
// distribution or <https://octave.org/copyright/>.
//
// This file is part of Octave.
//
// Octave 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.
//
// Octave 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 Octave; see the file COPYING.  If not, see
// <https://www.gnu.org/licenses/>.
//
////////////////////////////////////////////////////////////////////////

// This file should not include config.h.  It is only included in other
// C++ source files that should have included config.h before including
// this file.

#include <QAction>
#include <QIcon>
#include <QString>
#include <QWidget>

#include "ToolBarButton.h"
#include "QtHandlesUtils.h"
#include "octave-qobject.h"
#include "gui-preferences-global.h"

OCTAVE_BEGIN_NAMESPACE(octave)

template <typename T>
ToolBarButton<T>::ToolBarButton (octave::base_qobject& oct_qobj,
                                 octave::interpreter& interp,
                                 const graphics_object& go, QAction *action)
: Object (oct_qobj, interp, go, action), m_separator (nullptr)
{
  typename T::properties& tp = properties<T> ();

  action->setToolTip (Utils::fromStdString (tp.get_tooltipstring ()));
  action->setVisible (tp.is_visible ());

  // Get the icon data from cdata or as a named icon
  QImage img = Utils::makeImageFromCData (tp.get_cdata (), 24, 24);

  if (img.width () == 0)
    {
      QIcon ico;
      std::string name = tp.get___named_icon__ ();
      if (! name.empty ())
        ico = get_icon (name);

      action->setIcon (ico);
    }
  else
    action->setIcon (QIcon (QPixmap::fromImage (img)));

  if (tp.is_separator ())
    {
      m_separator = new QAction (action);
      m_separator->setSeparator (true);
      m_separator->setVisible (tp.is_visible ());
    }
  action->setEnabled (tp.is_enable ());

  QWidget *w = qobject_cast<QWidget *> (action->parent ());

  w->insertAction (w->actions ().back (), action);
  if (m_separator)
    w->insertAction (action, m_separator);
}

template <typename T>
ToolBarButton<T>::~ToolBarButton (void)
{ }

template <typename T>
void
ToolBarButton<T>::update (int pId)
{
  typename T::properties& tp = properties<T> ();
  QAction *action = qWidget<QAction> ();

  switch (pId)
    {
    case base_properties::ID_VISIBLE:
      action->setVisible (tp.is_visible ());
      if (m_separator)
        m_separator->setVisible (tp.is_visible ());
      break;

    case T::properties::ID_TOOLTIPSTRING:
      action->setToolTip (Utils::fromStdString (tp.get_tooltipstring ()));
      break;

    case T::properties::ID_CDATA:
      {
        // Get the icon data from cdata or as a named icon
        QImage img = Utils::makeImageFromCData (tp.get_cdata (), 24, 24);

        if (img.width () == 0)
          {
            QIcon ico;
            std::string name = tp.get___named_icon__ ();
            if (! name.empty ())
              ico = get_icon (name);

            action->setIcon (ico);
          }
        else
          action->setIcon (QIcon (QPixmap::fromImage (img)));
      }
      break;

    case T::properties::ID_SEPARATOR:
      if (tp.is_separator ())
        {
          if (! m_separator)
            {
              m_separator = new QAction (action);
              m_separator->setSeparator (true);
              m_separator->setVisible (tp.is_visible ());

              QWidget *w = qobject_cast<QWidget *> (action->parent ());

              w->insertAction (action, m_separator);
            }
        }
      else
        {
          if (m_separator)
            delete m_separator;
          m_separator = nullptr;
        }
      break;

    case T::properties::ID_ENABLE:
      action->setEnabled (tp.is_enable ());
      break;

    default:
      Object::update (pId);
      break;
    }
}

template <typename T>
QIcon ToolBarButton<T>::get_icon (const std::string& name)
{
  return QIcon (global_icon_paths.at (ICON_THEME_OCTAVE) + QString::fromStdString (name) + ".png");
}

OCTAVE_END_NAMESPACE(octave)