#ifndef FILEFIELD_H
#define FILEFIELD_H

#include "tcommon.h"
#include <QWidget>
#include <QFileDialog>
#include "tfilepath.h"
#include "toonzqt/lineedit.h"

#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 declaration
class QPushButton;

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

namespace DVGui
{

//=============================================================================
/*! \class DVGui::FileField
		\brief The FileField class provides an object to manage file browser.

		Inherits \b QWidget.

		The object FileField is composed of two part, a field \b LineEdit and a
		button \b QPushButton. Click button to open a directory browser popup
		that is used to choose a directory.
		You can set in constructor default path.
		Maximum height object is fixed to \b DVGui::WidgetHeight.
		By default dialog permit user to select only folder, but using setFileMode()
		you can indicate what the user may select in the file dialog, folder or file;
		you can also set file type using setFilters().
*/
class DVAPI FileField : public QWidget
{
	Q_OBJECT

	LineEdit *m_field;
	QStringList m_filters;
	QFileDialog::FileMode m_fileMode;
	QString m_windowTitle;

protected: //used in the child class for CleanupSettings
	QPushButton *m_fileBrowseButton;
	QString m_lastSelectedPath;

public:
	/* N.B. Vedi il commento della classe BrowserPopupController in filebrowserpopup.cpp*/
	class BrowserPopupController
	{
	public:
		BrowserPopupController() {}
		virtual ~BrowserPopupController() {}
		virtual bool isExecute() { return true; };
		virtual QString getPath() { return QString(); };
		virtual void openPopup(QStringList, bool, QString){};
	};

	static BrowserPopupController *m_browserPopupController;

	FileField(QWidget *parent = 0, QString path = QString(), bool readOnly = false);
	~FileField() {}

	/*! Set what the user may select in the file dialog:
			\li QFileDialog::DirectoryOnly show only directory.
			\li QFileDialog::AnyFile, QFileDialog::ExistingFile, QFileDialog::Directory, QFileDialog::ExistingFiles
					show directory and file. */
	void setFileMode(const QFileDialog::FileMode &fileMode);
	/*! Set file type in dialog popup. */
	void setFilters(const QStringList &filters);
	void setValidator(const QValidator *v) { m_field->setValidator(v); }
	QString getPath();
	void setPath(const QString &path);

	static void setBrowserPopupController(BrowserPopupController *controller);
	static BrowserPopupController *getBrowserPopupController();

protected slots:
	/*! Open a static file dialog popup to browse and choose directories. If a
			directory is seleceted and choose, set field to this directory. */
	//reimplemented in the "save in" filefield in CleanupSettings
	virtual void browseDirectory();

signals:
	/*!	This signal is emitted when path in field change, or by field edit or by
			browse popup. */
	void pathChanged();
};

//-----------------------------------------------------------------------------
} //namespace DVGui
//-----------------------------------------------------------------------------

#endif // FILEFIELD_H