paysages3d/gui_qt/inputdouble.cpp
2012-04-05 20:09:39 +00:00

60 lines
1.4 KiB
C++

#include "inputdouble.h"
#include <QLabel>
#include "math.h"
InputDouble::InputDouble(QWidget* form, QString label, double* value, double min, double max, double small_step, double large_step):
BaseInput(form, label),
value(value), min(min), max(max), small_step(small_step), large_step(large_step)
{
slider = new QSlider(form);
slider->setOrientation(Qt::Horizontal);
slider->setMinimumWidth(200);
slider->setMaximumWidth(400);
slider->setMinimum(0);
slider->setMaximum(round((max - min) / small_step));
slider->setValue(round((*value - min) / small_step));
slider->setTickInterval(round(large_step / small_step));
slider->setTickPosition(QSlider::TicksBelow);
connect(slider, SIGNAL(valueChanged(int)), this, SLOT(applyValue()));
_preview = new QLabel(form);
_control = slider;
}
void InputDouble::updatePreview()
{
((QLabel*)_preview)->setText(QString::number(*value, 'g', 3));
BaseInput::updatePreview();
}
void InputDouble::applyValue()
{
int ivalue = slider->value();
if (ivalue == slider->maximum())
{
*value = max;
}
else
{
*value = min + ((double)ivalue) * small_step;
}
if (fabs(*value) < 0.0000001)
{
*value = 0.0;
}
BaseInput::applyValue();
}
void InputDouble::revert()
{
slider->setValue(round((*value - min) / small_step));
BaseInput::revert();
}