/*
 * Copyright (C) 2009 Matthew Gates
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 */
 
#ifndef _TUINODEDOUBLE_HPP_
#define _TUINODEDOUBLE_HPP_ 1

#include "TuiNodeEditable.hpp"
#include <QObject>
#include <QString>


//! @class TuiNodeDouble
//! Allows navigation but also editing of a double value
class TuiNodeDouble : public TuiNodeEditable
{
	Q_OBJECT
public:
	//! Create a TuiNodeDouble node.
	//! @param text the text to be displayed for this node
	//! @param receiver a QObject which will receive a signal when the value 
	//! is changed
	//! @param method the method in the receiver which will be called when
	//! the value is changed.  Note that this should be passed using the 
	//! SLOT() macro.
	//! @param defValue the default value for the node
	//! @param min the minimum acceptable value for the node
	//! @param max the maximum acceptable value for the node
	//! @param inc the increment which will be added and subtracted
	//! from the current value when the up and down cursors are used
	//! @param parent the node for the parent menu item
	//! @param prev the previous node in the current menu (typically 
	//! shares the same parent)
	TuiNodeDouble(const QString& text, QObject* receiver, const char* method, double defValue, 
	              double min, double max, double inc, TuiNode* parent=NULL, TuiNode* prev=NULL);
	virtual TuiNodeResponse handleEditingKey(int key);
	virtual QString getDisplayText();

signals:
	void setValue(double b);

private:
	double value;
	//! persistent copy of the value in string format.
	//! This is necessary, because if the string is re-created from double
	//! on every digit entered, it is impossible to enter numbers with 0
	//! in any position after the decimal sign.
	QString stringValue;
	double minimum;
	double maximum;
	double increment;
	bool typing;
	bool typedDecimal;
	
};

#endif /*_TUINODEDOUBLE_HPP_*/