QT初学常用控件（Label pushbotton radio Slider...）代码创建方式

妖狐艹你老母 2022-06-10 10:18 52阅读 0赞

#include "widget.h"
    #include "qlabel.h"
    #include "QVBoxLayout"
    #include "QHBoxLayout"
    #include "QLineEdit"
    #include"QCompleter"
    #include"QTextEdit"
    #include"QPushButton"
    #include"QRadioButton"
    #include"QComboBox"
    #include"QGroupBox"
    #include"QSlider"
    #include"QTabWidget"
    #include"QDebug"
    
    
    void Widget::label_string(QString str)
    {
        qDebug()<<str;
    }
    
    void Widget::lineEdit_string(QString str)
    {
       qDebug()<<str;
    }
    
    void Widget::textEdit_string()
    {
        QTextEdit *edit=(QTextEdit*)sender();
          qDebug()<<edit->toPlainText();
    }
    
    void Widget::closeTab(int i)
    {
        QTabWidget *tab =(QTabWidget*)sender();
        tab->removeTab(i);
    }
    
    Widget::Widget(QWidget *parent)
        : QWidget(parent)
    {
    
        QVBoxLayout *vLayout_1 = new QVBoxLayout;
        QHBoxLayout *hLayout_1 = new QHBoxLayout;
        QHBoxLayout *hLayout_2 = new QHBoxLayout;
    
        //QLable
    
        QLabel *qlable=new QLabel;
        // qlable->setText("<font color = red>HELLO WORLD</font>");
        // qlable->setStyleSheet("QLabel{font:bold 24pix;color:green}");
        qlable->setText("<a href=www.baidu.com>网址</a>");
        vLayout_1->addWidget(qlable);
        connect(qlable,SIGNAL(linkActivated(QString)),this,SLOT(label_string(QString)));
        this->setLayout(vLayout_1);
        //QLable
    
        //QLineEdit
    
        QLineEdit *linEdit = new QLineEdit;
        linEdit->setCompleter(new QCompleter(QStringList()<<"你好！"<<"你好不好啊？"<<"我不好"));
        vLayout_1->addWidget(linEdit);
        connect(linEdit,SIGNAL(textChanged(QString)),this,SLOT(lineEdit_string(QString)));
        this->setLayout(vLayout_1);
        //QLineEdit
    
    
        //QTextEdit
            QTextEdit* textEdit=new QTextEdit;
           // textEdit->setText("<table border=1><tr><th>学号<th>姓名<th>班级"
             //                 "<tr><td>1001<td>张三<td>141"
              //                "<tr><td>1002<td>李四<td>142");
            textEdit->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
            vLayout_1->addWidget(textEdit);//textEdit
            connect(textEdit,SIGNAL(textChanged()),this,SLOT(textEdit_string()));
             this->setLayout(vLayout_1);
        //QTextEdit
    
    
    //    QPushButton *btn=new QPushButton;
    //    btn->setText("按钮");
    //    vLayout_1->addWidget(btn);
    //    this->setLayout(vLayout_1);
        // QpushButton
    
        // QRadioButton
    
            QRadioButton *radio1 = new QRadioButton("男");
            QRadioButton *radio2 = new QRadioButton("女");
            vLayout_1->addWidget(radio1);
            hLayout_1->addWidget(radio2);
            vLayout_1->addLayout(hLayout_1);
            connect(radio1,&QRadioButton::toggled,[](bool bl){qDebug()<<bl;});
            this->setLayout(vLayout_1);
       // QRadioButton
    
        //QComboBox
            QComboBox *combo = new QComboBox;
            combo->addItem("南京");
            combo->addItems(QStringList()<<"上海"<<"无锡");
            combo->setEditable(true);
            vLayout_1->addWidget(combo);
            connect(combo,SIGNAL(currentTextChanged(QString)),this,SLOT(lineEdit_string(QString)));
    
            this->setLayout(vLayout_1);
        //QComboBox
    
    
        //QGroupBox
    
        QGroupBox *group = new QGroupBox("按钮盒");
        QPushButton *btn_1 = new QPushButton("确认");
        QPushButton *btn_2 = new QPushButton("取消");
        hLayout_2->addWidget(btn_1);
        hLayout_2->addWidget(btn_2);
        group->setLayout(hLayout_2);
        vLayout_1->addWidget(group);
        this->setLayout(vLayout_1);
        //QGroupBox
    
        //QSlider
        QSlider *slider = new QSlider;
        slider->setMaximum(100);
        slider->setMinimum(0);
        vLayout_1->addWidget(slider);
        this->setLayout(vLayout_1);
        //QSlider
    
    
     //QTabWidget
        QTabWidget *tab= new QTabWidget;
        QPushButton *btn4=new  QPushButton("but1");
        QPushButton *btn5=new  QPushButton("but2");
        tab->addTab(btn4,"tab1");
        tab->addTab(btn5,"tab2");
        tab->setTabsClosable(true);
        vLayout_1->addWidget(tab);
        connect(tab,SIGNAL(tabCloseRequested(int)),this,SLOT(closeTab(int)));
    
        this->setLayout(vLayout_1);
    }
    
    Widget::~Widget()
    {
    
    }