/* flip - pageflipper for TIFF animations
 * Copyright (C) 1999 Mark B. Allan (mba@reptilelabour.com)
 *
 * "flip" is free software; you can redistribute it and/or use 
 * it and/or modify it under the terms of the "Artistic License" 
 */
 
#include "InputLCD.h"

#include <limits.h>
#include <math.h>

InputLCD::InputLCD (QWidget* parent, const char* name)
	: QLCDNumber (parent, name)
{
	setFrameStyle( QFrame::Sunken | QFrame::Panel );
	setNumDigits( 4 );
	setMode( QLCDNumber::DEC );
	setCursor (sizeHorCursor);
//	setSegmentStyle( QLCDNumber::Flat );
	
	minInt		= -(INT_MAX-1);
	maxInt		=  (INT_MAX-1);
	LCDactive	= FALSE;
	display (" ");
}

//----------------------------------------------------------------
void	InputLCD::setActive (bool status)
{
	LCDactive = status;
	if (LCDactive == FALSE)
	{
		display (" ");
	}
}	

//----------------------------------------------------------------
void	InputLCD::setValue (int val)
{
	LCDactive	= TRUE;
	if (val < minInt)	val = minInt;
	if (val > maxInt)	val = maxInt;
	display (val);
}

//----------------------------------------------------------------
void	InputLCD::setMinInt (int val)
{
	minInt = val;
}
void	InputLCD::setMaxInt (int val)
{
	maxInt = val;
}

void	InputLCD::setMinMaxInt (int min, int max)
{
	minInt = min;
	maxInt = max;
}

//----------------------------------------------------------------
void InputLCD::mousePressEvent ( QMouseEvent *msEv )
{
	lastXPos	= msEv->x();
}

//----------------------------------------------------------------
void InputLCD::mouseMoveEvent ( QMouseEvent *msEv )
{
	int		tempInt;
	int		newInt;

	if (LCDactive)
	{
		tempInt = msEv->x()-lastXPos;
		switch (msEv->state())
		{
			case (LeftButton):
				break;
			case (LeftButton | ControlButton) :
				tempInt *= 10;
				break;
			default :
				tempInt = 0;
		}
		newInt = intValue() + tempInt;

		if (newInt < minInt)	newInt = minInt;
		else
		if (newInt > maxInt)	newInt = maxInt;

		if (intValue() != newInt )
		{
			emit	valueChanged(newInt);
			display (newInt);
		}
	}
	lastXPos = msEv->x();
}