#pragma once

#ifndef FRAMENVIGATOR_H

#define FRAMENVIGATOR_H

// TnzCore includes

#include "tcommon.h"

// TnzQt includes

#include "toonzqt/intfield.h"

// Qt includes

#include <qwidget></qwidget>

#include <qtoolbar></qtoolbar>

#undef DVAPI

#undef DVVAR

#ifdef TOONZQT_EXPORTS

#define DVAPI DV_EXPORT_API

#define DVVAR DV_EXPORT_VAR

#else

#define DVAPI DV_IMPORT_API

#define DVVAR DV_IMPORT_VAR

#endif

//======================================================

//    Forward declarations

class TFrameHandle;

//======================================================

//*****************************************************************************

//    KeyframeNavigator  declaration

//*****************************************************************************

/*!

  \brief    The FrameNavigator is a simple toolbar widget showing a numerical

            representation of an integer timeline.

  \details  A FrameNavigator is a TFrameHandle viewer composed of a line edit

            widget showing the current frame number, and a pair of directional

            arrow buttons that move to adjacent frames.

  \remark   The text field actually visualizes the internal integer \p m_frame

  \a +1

            (e.g. when \p m_frame is 0 then 1 is visualized).

*/

class DVAPI FrameNavigator final : public QToolBar {

  Q_OBJECT

  TFrameHandle *m_frameHandle;

  int m_frame;

  DVGui::IntLineEdit *m_lineEdit;

public:

  FrameNavigator(QWidget *parent = 0);

  ~FrameNavigator() {}

  int getFrame() const { return m_frame; }

  void setFrameHandle(TFrameHandle *);  //!< Attaches the navigator to the

                                        //! specified frameHandle.

  //!  \remark    Detaches from any previously attached frame handle.

  bool anyWidgetHasFocus();

signals:

  void frameSwitched();

public slots:

  void setFrame(

      int frame,

      bool notifyFrameHandler);  //!< Sets the navigator's current frame.

                                 //!  \deprecated  Remove the bool.

  void prevFrame() {

    setFrame(m_frame - 1, true);

  }  //!< Move to previous frame.

  void nextFrame() { setFrame(m_frame + 1, true); }  //!< Move to next frame.

protected:

  void showEvent(QShowEvent *) override;

  void hideEvent(QHideEvent *) override;

  void updateFrame(int frame);  //!< Changes frame without emitting any signal

                                //! and notifying the frameHandle.

protected slots:

  /*!

\details  Copies the value in the frame's line edit widget to the internal

current frame value.

*/

  void onEditingFinished();  //!< Slot invoked whenever current frame's text

                             //! editing is finished.

  void onFrameSwitched();

};

#endif  // FRAMENVIGATORTOOLBAR_H