Qt QDialogButtonBox 学习

widget.h

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QGridLayout>
#include <QDialogButtonBox>

namespace Ui {
class Widget;
}

class Widget : public QWidget
{
    Q_OBJECT

public:
    explicit Widget(QWidget *parent = nullptr);
    ~Widget();

public slots:
    void button_Box_func();

private:
    QDialogButtonBox *button_Box;
    QGridLayout *mainLayout;
    QPushButton *bnt_add;
    QPushButton *bnt_reset;
    QPushButton *bnt_remove;
    QPushButton *bnt_help;
    Ui::Widget *ui;
};

#endif // WIDGET_H

widget.cpp

#include "widget.h"
#include "ui_widget.h"
#include <QDebug>
#include <QPushButton>

Widget::Widget(QWidget *parent) :
    QWidget(parent),
    ui(new Ui::Widget)
{
    mainLayout = new QGridLayout();
    button_Box = new QDialogButtonBox(Qt::Vertical);
    bnt_add = new QPushButton(tr("&Add"));
    bnt_reset = new QPushButton(tr("Reset"));
    bnt_remove = new QPushButton(tr("&Remove"));
    bnt_help = new QPushButton(tr("Help"));

    button_Box->addButton(bnt_add, QDialogButtonBox::ActionRole);
    button_Box->addButton(bnt_reset, QDialogButtonBox::ActionRole);
    button_Box->addButton(bnt_remove, QDialogButtonBox::ActionRole);
    button_Box->addButton(bnt_help, QDialogButtonBox::ActionRole);

    connect(bnt_add, SIGNAL(clicked()), this, SLOT(button_Box_func()));
    connect(bnt_reset, SIGNAL(clicked()), this, SLOT(button_Box_func()));
    connect(bnt_remove, SIGNAL(clicked()), this, SLOT(button_Box_func()));
    connect(bnt_help, SIGNAL(clicked()), this, SLOT(button_Box_func()));

    mainLayout->addWidget(button_Box, 0, 0, Qt::AlignCenter);

    setLayout(mainLayout);
    ui->setupUi(this);
}

void Widget::button_Box_func()
{
    qDebug() << "clicked...";
}

Widget::~Widget()
{
    delete bnt_add;
    delete bnt_reset;
    delete bnt_remove;
    delete bnt_help;
    delete mainLayout;
    delete button_Box;
    delete ui;
}

main.cpp:

#include "widget.h"
#include <QApplication>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    Widget w;
    w.show();

    return a.exec();
}

运行结果: