1.3 窗口部件的布局

#include <QApplication>
#include <QHBoxLayout>
#include <QSlider>
#include <QSpinBox>
int main(int argc, char** argv)
{
    QApplication app(argc, argv);
    QWidget *pWindow = new QWidget;
    pWindow->setWindowTitle(QObject::tr("Enter Your Age"));
    
    QSpinBox *pSpinBox = new QSpinBox;
    //设置spinBox控件的取值范围
    pSpinBox->setRange(0, 130);
    QSlider *pSlider = new QSlider(Qt::Horizontal);
    pSlider->setRange(0, 130);
    QObject::connect(pSpinBox, SIGNAL(valueChanged(int)), pSlider, SLOT(setValue(int)));
    QObject::connect(pSlider, SIGNAL(valueChanged(int)), pSpinBox, SLOT(setValue(int)));
    //创建布局
    QHBoxLayout *pLayout = new QHBoxLayout;
    
    //向布局中添加控件
    pLayout->addWidget(pSpinBox);
    pLayout->addWidget(pSlider);
    
    //对窗口使用布局
    pWindow->setLayout(pLayout);
    pWindow->show();
    return app.exec();
}

图片:3.png