/*

Copyright (C) 2011-2016 Jacob Dawid

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
<http://www.gnu.org/licenses/>.

*/

#if ! defined (octave_history_dock_widget_h)
#define octave_history_dock_widget_h 1

#include <QLineEdit>
#include <QListView>
#include <QSortFilterProxyModel>
#include <QStringListModel>
#include <QComboBox>
#include <QCheckBox>

#include "octave-dock-widget.h"

class history_dock_widget : public octave_dock_widget
{
  Q_OBJECT

public:

  history_dock_widget (QWidget *parent = 0);
  ~history_dock_widget (void) { }

public slots:

  void set_history (const QStringList& hist);
  void append_history (const QString& hist_entry);
  void clear_history (void);
  void save_settings (void);

signals:

  void information (const QString& message);

  /** Emitted, whenever the user double-clicked a command in the history. */
  void command_double_clicked (const QString& command);

  /** Emitted whenever the user selects command and chooses Create
      script from popupmenu. */
  void command_create_script (const QString& commands);

private slots:

  void update_filter_history ();
  void filter_activate (bool enable);

  void handle_double_click (QModelIndex modelIndex);
  void handle_contextmenu_copy (bool flag);
  void handle_contextmenu_evaluate (bool flag);
  void handle_contextmenu_create_script (bool flag);
  void handle_contextmenu_filter (void);
  void ctxMenu (const QPoint &pos);

  void copyClipboard ();
  void pasteClipboard ();
  void selectAll ();

  virtual void handle_visibility (bool visible);

private:

  void construct ();
  QListView *_history_list_view;
  QSortFilterProxyModel _sort_filter_proxy_model;

  /** Stores the current history_model. */
  QStringListModel *_history_model;

  QCheckBox *_filter_checkbox;
  QComboBox *_filter;
  QWidget *_filter_widget;
  bool _filter_shown;
  enum { MaxFilterHistory = 10 };
};

#endif

