#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 : 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 *);

	void hideEvent(QHideEvent *);

	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