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#ifndef FUNCTIONTOOLBAR_INCLUDED
#define FUNCTIONTOOLBAR_INCLUDED

// TnzCore includes
#include "tdoubleparam.h"

// TnzQt includes
#include "toonzqt/lineedit.h"

// Qt includes
#include <QToolBar>
#include <QAction>

#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 TDoubleParam;
class TFrameHandle;

namespace DVGui
{
class MeasuredDoubleLineEdit;
}

class FrameNavigator;
class FunctionKeyframeNavigator;
class FunctionSelection;

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

namespace DVGui
{
class ToolBar : public QToolBar
{
public:
	ToolBar(QWidget *parent = 0) : QToolBar(parent)
	{
		setFixedHeight(22);			// ;_;
		setIconSize(QSize(23, 17)); //
	}
};
}

//*************************************************************************
//    FunctionToolbar  declaration
//*************************************************************************

class FunctionToolbar : public DVGui::ToolBar, public TParamObserver
{
	Q_OBJECT

	QToolBar *m_valueToolbar,
		*m_keyframeToolbar;

	DVGui::MeasuredDoubleLineEdit *m_valueFld;
	FrameNavigator *m_frameNavigator;
	FunctionKeyframeNavigator *m_keyframeNavigator;
	DVGui::LineEdit *m_stepFld;

	TDoubleParam *m_curve;
	TFrameHandle *m_frameHandle;

	FunctionSelection *m_selection;

	// in una toolbar ogni widget ha un'action associata
	QAction *m_valueFldAction;			// brutto: da eliminare. serve solo per fare show/hide
	QAction *m_keyframeNavigatorAction; // brutto: da eliminare. serve solo per fare show/hide

public:
	FunctionToolbar(QWidget *parent = 0);
	~FunctionToolbar();

	void setSelection(FunctionSelection *);
	void setFrameHandle(TFrameHandle *frameHandle);

	void onChange(const TParamChange &);

	bool anyWidgetHasFocus();

signals:

	void numericalColumnToggled();

public slots:

	void setCurve(TDoubleParam *curve);
	void setFrame(double frame);

private slots:

	void onValueFieldChanged();
	void onFrameSwitched();
	void onNavFrameSwitched();
	void onSelectionChanged();
};

#endif // FUNCTIONTOOLBAR_INCLUDED