#include "propslider.h"

#include <QDebug>


PropSlider::PropSlider(QWidget *parent)
	:QSlider(parent),
	 mapped_value(mapValue())
{
	connect(this, SIGNAL(valueChanged(int)),
			this, SLOT(setValue(int)));
}


int PropSlider::mapValue() const
{
	return (value - min) * maximum() / (max - min);
}


double PropSlider::unmapValue() const
{
	return (double) mapped_value * (max - min) / maximum() + min;
}


void PropSlider::setMinimum(double min)
{
	this->min = min;
}


void PropSlider::setMaximum(double max)
{
	this->max = max;
	((QSlider *) this)->setMaximum((max-min) / step);
}


void PropSlider::setStep(double step)
{
	this->step = step;
	setMaximum(max);
}


void PropSlider::setValue(double value)
{
	qDebug() << "PropSlider, setting from double" << value;
	this->value = value;
	((QSlider *) this)->setValue(mapValue());
}


void PropSlider::setValue(int mapped_value) {
	qDebug() << "PropSlider, setting from int" << mapped_value;
	if (mapValue() != mapped_value) {
		qDebug() << "Mapped value changed, transmitting to GLArea";
		this->mapped_value = mapped_value;
		this->value = unmapValue();
		emit valueChanged(this->value);
	}
}