// SPDX-License-Identifier: MIT
#include "valuecontrol.h"
#include <QHBoxLayout>
#include <QSignalBlocker>
#include <algorithm>

ValueControl::ValueControl(QWidget *parent) : QWidget(parent),
    m_slider(new QSlider(Qt::Horizontal, this)), m_number(new QSpinBox(this))
{
    auto *layout = new QHBoxLayout(this);
    layout->setContentsMargins(0, 0, 0, 0);
    layout->addWidget(m_slider, 1); layout->addWidget(m_number);
    m_slider->setMinimumWidth(100);
    setFocusProxy(m_number);
    connect(m_slider, &QSlider::valueChanged, m_number, &QSpinBox::setValue);
    connect(m_number, &QSpinBox::valueChanged, m_slider, &QSlider::setValue);
    connect(m_number, &QSpinBox::valueChanged, this, &ValueControl::valueChanged);
    setRange(0, 100);
}
void ValueControl::setRange(int minimum, int maximum)
{
    // Block the slider while changing its range so its old value cannot clamp
    // the number field before both controls have the new bounds.
    const QSignalBlocker block(m_slider);
    m_slider->setRange(minimum, maximum);
    m_number->setRange(minimum, maximum);
    m_slider->setValue(m_number->value());
    m_slider->setPageStep(std::max(1, (maximum - minimum) / 10));
    updateRangeHint();
}
void ValueControl::setSuffix(const QString &suffix)
{
    m_number->setSuffix(suffix); updateRangeHint();
}
void ValueControl::setSingleStep(int step)
{
    m_slider->setSingleStep(step); m_number->setSingleStep(step);
}
void ValueControl::updateRangeHint()
{
    m_slider->setToolTip(QString("%1–%2%3").arg(m_number->minimum()).arg(m_number->maximum()).arg(m_number->suffix()));
}