Qt：QButtonGroup

ゝ一世哀愁。 2023-01-12 11:46 90阅读 0赞

1、新建一个QtGUI应用，基类选择QWidget，取消创建界面，添加资源文件

2、widget.h中

#ifndef WIDGET_H
    #define WIDGET_H
    
    #include <QWidget>
    #include <QCheckBox>
    #include <QButtonGroup>
    
    class Widget : public QWidget
    {
        Q_OBJECT
    
    public:
        Widget(QWidget *parent = 0);
        ~Widget();
    
    private:
        QButtonGroup *chk_group[2];
    
        QCheckBox *exclusive[3];
        QCheckBox *non_exclusive[3];
    
    private slots:
        void chkChanged();
    };
    
    #endif // WIDGET_H

widget.cpp中

#include "widget.h"
    #include <QDebug>
    #include <QString>
    Widget::Widget(QWidget *parent)
        : QWidget(parent)
    {
        QString str1[3] = {"游戏", "Offices", "Develop"};
        QString str2[3] = {"P&rogramming", "Q&t", "O&S"};
    
        chk_group[0] = new QButtonGroup(this);
        chk_group[1] = new QButtonGroup(this);
    
        int xpos = 30;
        int ypos = 30;
    
        for(int i = 0; i < 3; ++i){
            exclusive[i] = new QCheckBox(str1[i], this); //可以在多个项目中多选
            exclusive[i]->setGeometry(xpos, ypos, 100, 30);
            chk_group[0]->addButton(exclusive[i]);  //分组
    
            non_exclusive[i] = new QCheckBox(str2[i], this);
            non_exclusive[i]->setGeometry(xpos + 120, ypos, 100, 30);
            chk_group[1]->addButton(exclusive[i]);
    
            connect(non_exclusive[i], SIGNAL(clicked()), this,
                                  SLOT(chkChanged()));
    
            ypos += 40;
        }
        chk_group[0]->setExclusive(false);  //单选
        chk_group[1]->setExclusive(true);   //多选
    
            exclusive[0]->setIcon(QIcon(":resources/browser.png"));
            exclusive[1]->setIcon(QIcon(":resources/calendar.png"));
            exclusive[2]->setIcon(QIcon(":resources/chat.png"));
    
            non_exclusive[0]->setIcon(QIcon(":resources/editor.png"));
            non_exclusive[1]->setIcon(QIcon(":resources/mail.png"));
            non_exclusive[2]->setIcon(QIcon(":resources/users.png"));
    }
    
    Widget::~Widget()
    {
    
    }
    
    void Widget::chkChanged()
    {
        for(int i = 0 ; i < 3 ; i++)
        {
            if(non_exclusive[i]->checkState())
            {
                qDebug("checkbox %d selected ", i+1);
            }
        }
    }

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[215ed9e7d8bf5330caa93aac082c2c67bea.jpg]: /images/20221119/e800fa93825c4930b35bedd5628c70c5.png