QT 5 Basics 2 (Control article)

    Qvboxlayout *lay = new Qvboxlayout (this);  Create a vertical box



    Lebel article
  
    Lay->addwidget (label = new Qlabel ("<a href=www.baidu.com>baidu</a>")); Set up a link to Baidu

    Label->setpixmap (Qpixmap ("1.png"));                         Show bitmap

    Connect (label,&qlabel::linkactivated,[] (QString str) {

        Qdebug () <<str;                                            

    });


    
    Button class

    Lay->addwidget (Button = new Qpushbutton ("button"));

    Button->setstylesheet ("Qpushbutton {font:bold 16px; color:red} ");    
    HTML formatting font Red 16 pixels bold is blackbody

    Lay->addwidget (radio = new Qradiobutton ("RadioButton"));

    Radio->setstylesheet ("Qradiobutton {font:bold 16px; color:red} ");

    Lay->addwidget (New Qcheckbox ("Check"));



    ComboBox Chapter

    Lay->addwidget (Combox = new Qcombobox ());

    Combox->additem ("1");                                   Add an option

    Combox->additem ("2");                                   Two + options added

    Combox->seteditable (true);                              Set options to edit

    Combox->setcompleter (New Qcompleter (Combox->model ()));  Set default match



    

    Lay->addwidget (edit = new Qtextedit);

    Edit->settext ("<table border = 1><tr><th>head1</th><th>head2</th></tr > "      

                  "<tr><td>value1</td><td>value2</td></tr>"                     

                  "</table><br>"

    "</img>");

    Edit->setverticalscrollbarpolicy (qt::scrollbarasneeded); Set the value scroll bar, as needed

      IMG src=  Image address abbreviation

         HTML-formatted table border for boundary <tr> Yes row <th> is header <td> is cell

         <table> the beginning of the table <br> line break equals "\ n"

    Slider and Spinbox Articles

    Qslider *slider;

    Lay->addwidget (slider = new Qslider (qt::horizontal));

    Slider->setmaximum (100);

    Slider->setminimum (0);

    Qspinbox *spinbox;

    Lay->addwidget (Spinbox = new Qspinbox);

    Spinbox->setmaximum (100);

    Spinbox->setminimum (0);

    Connect (slider,signal (valuechanged (int)), Spinbox,slot (setValue (int)));   
    Connecting Spinbox and Sliders

    Connect (spinbox,signal (valuechanged (int)), Slider,slot (setValue (int)));  
    One value change causes the other value to be set



    LCD article

    Qlcdnumber *LCD;

    Lay->addwidget (LCD = new Qlcdnumber (10)); Set size

    Lcd->display ("12345:6");                Show numbers or strings

    Lcd->setsegmentstyle (Qlcdnumber::flat); Set paragraph style

QT 5 Basics 2 (Control article)