// -*- C++ -*-
/**
 * \file GuiCompare.h
 * This file is part of LyX, the document processor.
 * Licence details can be found in the file COPYING.
 *
 * \author Vincent van Ravesteijn
 *
 * Full author contact details are available in file CREDITS.
 */

#ifndef GUICOMPARE_H
#define GUICOMPARE_H

#include "GuiDialog.h"
#include "ui_CompareUi.h"
#include "qt_helpers.h"

namespace lyx {
namespace frontend {


class GuiCompare : public GuiDialog, public Ui::CompareUi
{
	Q_OBJECT

public:
	///
	GuiCompare(GuiView & lv);
	~GuiCompare();

	void closeEvent(QCloseEvent *);
		
private Q_SLOTS:
	///
	void slotOK();
	///
	void slotCancel();
	///
	void changeAdaptor();
	///
	void selectNewFile();
	///
	void selectOldFile();

	///
	void finished(bool aborted);
	///
	void nextIt(int);
	///
	void progressMax(int) const;

private:
	///
	void updateContents();
	///
	bool isValid();
	///
	bool initialiseParams(std::string const &) { return true; }
	///
	bool isBufferDependent() const { return false; }
	///
	void clearParams() {}
	///
	void dispatchParams() {}
	///
	void apply() {}


	/// enable or disable all controls and rename the Close/Cancel button
	void enableControls(bool enable) const;
	
	/// browse for a file
	QString browse(QString const & in_name) const;
	/// retrieve the buffer from the specified filename
	Buffer const * bufferFromFileName(std::string const & file) const;

	/// create the compare object and run the comparison
	int run();

private:
	/// the buffer that will contain the result
	Buffer * dest_buffer_;
	/// the buffer that will contain the result
	Buffer const * old_buffer_;
	/// the buffer that will contain the result
	Buffer const * new_buffer_;

	/// the window title
	mutable QString window_title_;
};



} // namespace frontend
} // namespace lyx

#endif // GUICOMPARE_H