#include "smallwidget.h"

SmallWidget::SmallWidget(QWidget *parent) : QWidget(parent)
{
    spinBox = new QSpinBox(this);
    spinBox->setGeometry(20,20,100,50);

    slider = new QSlider(Qt::Vertical,this); // Horizontal 垂直方向
    slider->setGeometry(140,20,40,100);

    slider->setMaximum(100);

    QHBoxLayout *layout = new QHBoxLayout(this);
    layout->addWidget(spinBox);
    layout->addWidget(slider);

    setLayout(layout); // 设置当前 QWidget 的布局

    connect(slider,&QSlider::valueChanged,[&](int val){
        spinBox->setValue(val);
    });

    connect(spinBox, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int)));

}