/*

Copyright (C) 2011-2018 Michael Goffioul

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/>.

*/

#if ! defined (octave_Figure_h)
#define octave_Figure_h 1

#include <QRect>
#include <QStatusBar>

#include "GenericEventNotify.h"
#include "MenuContainer.h"
#include "Object.h"

class QMainWindow;
class QToolBar;
class QScreen;

namespace QtHandles
{

  enum MouseMode
  {
    // NOTE: These values must match the order of the buttons in the
    // MouseModeActionGroup object.

    NoMode      = 0,
    RotateMode  = 1,
    ZoomInMode  = 2,
    ZoomOutMode = 3,
    PanMode     = 4,
    TextMode    = 5,
    SelectMode  = 6
  };

  class Container;
  class FigureWindow;
  class MenuBar;
  class ToolBar;

  class MouseModeActionGroup;

  class Figure :
  public Object,
  public MenuContainer,
  public GenericEventNotifyReceiver
  {
    Q_OBJECT

    friend class ToolBar;

  public:
    Figure (const graphics_object& go, FigureWindow *win);
    ~Figure (void);

    static Figure * create (const graphics_object& go);

    QString fileName (void);
    void setFileName (const QString& name);

    MouseMode mouseMode (void);

    Container * innerContainer (void);
    QWidget * menu (void);
    void updateStatusBar (ColumnVector pt);

    bool eventNotifyBefore (QObject *watched, QEvent *event);
    void eventNotifyAfter (QObject *watched, QEvent *event);

  protected:
    enum UpdateBoundingBoxFlag
    {
      UpdateBoundingBoxPosition = 0x1,
      UpdateBoundingBoxSize     = 0x2,
      UpdateBoundingBoxAll      = 0x3
    };

  protected:
    void redraw (void);
    void show (void);
    void print (const QString& file_cmd, const QString& term);
    void update (int pId);
    void updateBoundingBox (bool internal = false, int flags = 0);
    void beingDeleted (void);

  private:
    void createFigureToolBarAndMenuBar (void);
    void showFigureToolBar (bool visible);
    void showMenuBar (bool visible, int height = -1);
    void addCustomToolBar (QToolBar *bar, bool visible);
    void showCustomToolBar (QToolBar *bar, bool visible);

    void updateFigureToolBarAndMenuBar (void);

    static void updateBoundingBoxHelper (void*);

    void close_figure_callback (void);

    void enableMouseTracking (void);

  private slots:
    void setMouseMode (MouseMode mode);
    void updateMenuBar (int height = -1);
    void updateContainer (void);
    void toggleAxes (void);
    void toggleGrid (void);
    void autoAxes (void);
    void figureWindowShown ();
    void screenChanged (QScreen*);

  public slots:
    uint8NDArray slotGetPixels (void);

  signals:
    void asyncUpdate (void);

  private:
    Container *m_container;
    bool m_blockUpdates;
    QToolBar *m_figureToolBar;
    MenuBar *m_menuBar;
    QStatusBar *m_statusBar;
    QRect m_innerRect;
    QRect m_outerRect;
    MouseModeActionGroup *m_mouseModeGroup;
    int m_previousHeight;
  };

}

#endif