最近写一个弹出菜单，使用的是QT5.12.12，

效果展示图：

头文件如下：

#ifndef WIDGET_H
#define WIDGET_H

#include <QWidget>
#include <QGroupBox>
#include <QComboBox>
#include <QRadioButton>
#include <QLabel>
#include <QVector>
#include <QStringList>

#include <QVBoxLayout>
#include <QHBoxLayout>

#include <vector>

#include <QButtonGroup>

QT_BEGIN_NAMESPACE
namespace Ui { class Widget; }
QT_END_NAMESPACE

class OutPort
{
public:
    void addViaComboBox();
    void addVetComboBox();
};

class ModePattern: public QGroupBox
{
    Q_OBJECT
public:
    explicit ModePattern(const QString &str = nullptr);
    ~ModePattern();
    void addPattern(const QString &str);
signals:
    void outString(const QStringList & str);

private:
    QString name_;
    QStringList emit_data;
    QStringList * pattern_comboBox_list_;
    QStringList * data_comboBox_list_;      //未使用


    QVBoxLayout * main_vbox;

    QLabel *label_1;
    QLabel *label_2;
    QLabel *label_3_0;
    QLabel *label_3_1;

    QComboBox * pattern_comboBox_;
//    QComboBox * oterComboBox_;

    QButtonGroup * radioButton_group;
    QRadioButton *radioButton_1;
    QRadioButton *radioButton_2;
    QRadioButton *radioButton_3;

    std::vector<QVBoxLayout *> vbox_vector;
    std::vector<QHBoxLayout *> hbox_vector;
    std::vector<QLabel *> label_vector;

    void newWidget();
    void setWidgetStyle();
    void setWidgetLayout();

};



class ModeLine: public QGroupBox
{
    Q_OBJECT
public:
    
    explicit ModeLine(const QString &str = nullptr);
    ~ModeLine();

signals:
    void outString(const QStringList & str);

private:
    QString name_;
    QStringList emit_data;
//    QStringList * comboBox_1_0_string_list_;
//    QStringList * comboBox_1_1_string_list_;
//    QStringList * comboBox_2_0_string_list_;
//    QStringList * comboBox_2_1_string_list_;


    QVBoxLayout *main_vbox;
    QLabel * label_1;
    QLabel * label_2;
    QLabel * label_3;

    QComboBox * comboBox_1_0;
    QComboBox * comboBox_1_1;
    QComboBox * comboBox_2_0;
    QComboBox * comboBox_2_1;


    void newWidget();
    void setWidgetStyle();
    void setWidgetLayout();

};



class ModeData: public QGroupBox
{
    Q_OBJECT
public:
    explicit ModeData(const QString &str = nullptr);
    ~ModeData();
private:

    void newWidget();
    void setWidgetStyle();
    void setWidgetLayout();

    QString name_;

};





class Widget : public QWidget
{
    Q_OBJECT

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

    void addViaComboBox();
    void addVetComboBox();
private:
    int32_t label_normall_width;
    int32_t label_normall_heigth;
    int32_t label_icon_width;
    int32_t label_icon_heigth;
    int32_t comboBox_normall_width;
    int32_t comboBox_normall_heigth;

    QVBoxLayout * main_vbox;  //totul layou

    QComboBox * viaComboBox_;
    QComboBox * vetComboBox_;

    QLabel * viaLable_;
    QLabel * viaLable_icon_;
    QLabel * vetLable_;
    QLabel * vetLable_icon_;

    std::vector<QVBoxLayout *> vbox_vector;
    std::vector<QHBoxLayout *> hbox_vector;
    std::vector<QLabel *> label_vector;

    // son class
    ModePattern * pattern;
    ModeLine * line;
    ModeData * end_modue;

    void initData();
    void newWidget();
    void setWidgetStyle();
    void setWidgetLayout();

private:
    Ui::Widget *ui;
};


#endif // WIDGET_H

cpp文件如下

#include "widget.h"
#include "ui_widget.h"


Widget::Widget(QWidget *parent)
    : QWidget(parent)
    , ui(new Ui::Widget)
{
    ui->setupUi(this);

    this->setFixedSize(330,460);
//    this->setFixedSize(330,460);
    initData();
    newWidget();
    setWidgetStyle();
    setWidgetLayout();
}

void Widget::initData()
{
    label_normall_width = 60;
    label_normall_heigth = 22;
    label_icon_width = 15;
    label_icon_heigth = 15;
    comboBox_normall_width = 220;
    comboBox_normall_heigth = 22;
}
void Widget::newWidget()
{
    //son class
    pattern     = new ModePattern("Pattern");
    line        = new ModeLine("Line");
    end_modue   = new ModeData("data");

    //my class data

    viaComboBox_ = new QComboBox(this);
    vetComboBox_ = new QComboBox(this);

    viaLable_      = new QLabel("Via",this);
    viaLable_icon_ = new QLabel("",this);
    vetLable_      = new QLabel("Vet",this);
    vetLable_icon_ = new QLabel("",this);

    label_vector.emplace_back(viaLable_);
    label_vector.emplace_back(viaLable_icon_);
    label_vector.emplace_back(vetLable_);
    label_vector.emplace_back(vetLable_icon_);
}

void Widget::setWidgetStyle()
{

    viaLable_->setFixedSize(label_normall_width,label_normall_heigth);
    viaLable_icon_->setFixedSize(label_icon_width,label_icon_heigth);
    vetLable_->setFixedSize(label_normall_width,label_normall_heigth);
    vetLable_icon_->setFixedSize(label_icon_width,label_icon_heigth);

}

void Widget::setWidgetLayout()
{
    main_vbox = new QVBoxLayout(this);
    QHBoxLayout * via_hbox = new QHBoxLayout(this);
    QHBoxLayout * vet_hbox = new QHBoxLayout(this);

    hbox_vector.emplace_back(via_hbox);
    hbox_vector.emplace_back(vet_hbox);

    via_hbox->addWidget(viaLable_);
    via_hbox->addWidget(viaLable_icon_);
    via_hbox->addWidget(viaComboBox_);

    vet_hbox->addWidget(vetLable_);
    vet_hbox->addWidget(vetLable_icon_);
    vet_hbox->addWidget(vetComboBox_);

    main_vbox->addLayout(via_hbox);
    main_vbox->addLayout(vet_hbox);

    main_vbox->addWidget(pattern);
    main_vbox->addWidget(line);
    main_vbox->addWidget(end_modue);

    this->setLayout(main_vbox);

}

void Widget::addViaComboBox()
{

}

void Widget::addVetComboBox()
{

}

Widget::~Widget()
{
    delete ui;

    delete pattern;
    delete line;
    delete end_modue;
}


//-------------------------------------------
ModePattern::ModePattern(const QString &str):name_(str)

{
    this->setTitle(str);
    newWidget();
    setWidgetStyle();
    setWidgetLayout();

}
void ModePattern::newWidget()
{
    pattern_comboBox_list_ = new QStringList;
    main_vbox = new QVBoxLayout;

    pattern_comboBox_ = new QComboBox(this);
//    oterComboBox_    = new QComboBox(this);

    radioButton_1 = new QRadioButton("pattern",this);
    radioButton_2 = new QRadioButton("",this);
    radioButton_3 = new QRadioButton("",this);

    label_1   = new QLabel("1",this);
    label_2   = new QLabel("1",this);
    label_3_0 = new QLabel("1",this);
    label_3_1 = new QLabel("1",this);

    label_vector.emplace_back(label_1);
    label_vector.emplace_back(label_2);
    label_vector.emplace_back(label_3_0);
    label_vector.emplace_back(label_3_1);

    connect(pattern_comboBox_,&QComboBox::currentTextChanged,
            [=](const QString &str)
            {
                emit_data.append(str);
                emit outString(emit_data);
            }
            );

}

void ModePattern::setWidgetStyle()
{

}

void ModePattern::setWidgetLayout()
{
    QHBoxLayout *hbox_1 = new QHBoxLayout();
    QHBoxLayout *hbox_2 = new QHBoxLayout();
    QHBoxLayout *hbox_3 = new QHBoxLayout();
    QVBoxLayout *vbox_radio = new QVBoxLayout();

    hbox_1->addWidget(label_1);
    hbox_1->addWidget(pattern_comboBox_);

    vbox_radio->addWidget(radioButton_1);
    vbox_radio->addWidget(radioButton_2);
    vbox_radio->addWidget(radioButton_3);

    hbox_2->addWidget(label_2);
    hbox_2->addLayout(vbox_radio);

    hbox_3->addWidget(label_3_0);
    hbox_3->addWidget(label_3_1);

    main_vbox->addLayout(hbox_1);
    main_vbox->addLayout(hbox_2);
    main_vbox->addLayout(hbox_3);

    this->setLayout(main_vbox);
}

void ModePattern::addPattern(const QString &str)
{
    pattern_comboBox_list_->append(str);
    pattern_comboBox_->addItem(str);
}

ModePattern::~ModePattern()
{
    delete pattern_comboBox_list_;

}


//-------------------------------------------
ModeLine::ModeLine(const QString &str ):name_(str)
{
    this->setTitle(str);
    newWidget();
    setWidgetStyle();
    setWidgetLayout();
}
void ModeLine::newWidget()
{
    emit_data.reserve(4);         //扩容四个空间

    main_vbox = new QVBoxLayout;

    label_1 = new QLabel("1",this);
    label_2 = new QLabel("2",this);
    label_3 = new QLabel("3",this);


    comboBox_1_0 = new QComboBox(this);
    comboBox_1_1 = new QComboBox(this);
    comboBox_2_0 = new QComboBox(this);
    comboBox_2_1 = new QComboBox(this);

    connect(comboBox_1_0,QComboBox::currentTextChanged,
            [&](const QString &str)
            {
                emit_data[0] = str;
                qDebug() << str;
            }
            );
    connect(comboBox_1_1,QComboBox::currentTextChanged,
            [&](const QString &str)
            {
                emit_data[1] = str;
                qDebug() << str;
            }
            );
    connect(comboBox_2_0,QComboBox::currentTextChanged,
            [&](const QString &str)
            {
                emit_data[0] = str;
                qDebug() << str;
            }
            );
    connect(comboBox_2_1,QComboBox::currentTextChanged,
            [&](const QString &str)
            {
                emit_data[0] = str;
                qDebug() << str;
            }
            );
}
void ModeLine::setWidgetStyle()
{

}
void ModeLine::setWidgetLayout()
{
    QHBoxLayout *hbox_1 = new QHBoxLayout();
    QHBoxLayout *hbox_2 = new QHBoxLayout();
    QHBoxLayout *hbox_3 = new QHBoxLayout();
    QHBoxLayout *hbox_4 = new QHBoxLayout();

    hbox_1->addWidget(label_1);

    hbox_2->addWidget(label_2);
    hbox_2->addWidget(comboBox_1_0);
    hbox_2->addWidget(comboBox_1_1);

    hbox_3->addWidget(label_3);
    hbox_3->addWidget(comboBox_2_0);
    hbox_3->addWidget(comboBox_2_1);

    main_vbox->addLayout(hbox_1);
    main_vbox->addLayout(hbox_2);
    main_vbox->addLayout(hbox_3);

    this->setLayout(main_vbox);
}
ModeLine::~ModeLine()
{
   
}


//-------------------------------------------
ModeData::ModeData(const QString &str ):name_(str)
{

}

ModeData::~ModeData()
{

}