QT控件-白红宇

QT控件

阅读量：3701 次

发布时间：2019-05-21

本文共 2819 字，大约阅读时间需要 9 分钟。

传智课程学习笔记。

很多控件，

#include "MyWidget.h"#include 
   
    #include 
    
          // disply static text, or image#include 
     
      #include 
      
        // single line#include 
       
        #include 
        
         #include 
         
          #include 
          
            // multi lines, rich text#include 
           
             // readonly textedit#include 
            
              //#include 
             
               // 模拟方式显示数值#include 
              
                // 数字#include 
               
                #include 
                
                 #include 
                 
                  #include 
                  
                    // 不介绍,不算控件#include 
                   
                    #include 
                    
                     #include 
                     
                      #include 
                      
                       #include 
                       
                        #include 
                        
                         MyWidget::MyWidget(QWidget *parent) : QWidget(parent){ QVBoxLayout* lay = new QVBoxLayout(this); QLabel* label; QComboBox* combo; QPushButton* button; QRadioButton* radio; QTextEdit* edit; QGroupBox* group; lay->addWidget(label = new QLabel("
                         baidu")); label->setPixmap(QPixmap("../aaa.png")); connect(label, &QLabel::linkActivated, [](QString str){ qDebug() << str; }); lay->addWidget(button = new QPushButton("Button")); button->setStyleSheet("QPushButton {font:bold 16px; color:red; padding:5px}"); lay->addWidget(radio = new QRadioButton("Radio")); radio->setStyleSheet("QRadioButton {font:bold 16px; color:red; padding:5px}"); connect(radio, &QRadioButton::clicked, [](bool v){ qDebug() << v; }); lay->addWidget(new QCheckBox("check box")); lay->addWidget(combo = new QComboBox()); combo->addItem("Select item1"); combo->addItem("Select item2"); combo->setEditable(true); connect(combo, SIGNAL(currentIndexChanged(QString)), this, SLOT(slotComboBoxIndexChanged(QString))); combo->setCompleter(new QCompleter(combo->model())); lay->addWidget(edit = new QTextEdit); edit->setText("
                         
" "
" "
" "
                                                                                 head1                             head2                            
                                                       value1                             value2                            
                                                       value3                             value4                            
                          
                         
                         
" "
                         "); _edit = edit; connect(edit, &QTextEdit::textChanged, [&](){ // QTextEdit* edit = (QTextEdit*)this->sender(); qDebug() << _edit->toPlainText(); }); edit->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); edit->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); lay->addWidget(group = new QGroupBox("Some items")); QHBoxLayout* hBoxLay; group->setLayout(hBoxLay = new QHBoxLayout); hBoxLay->addWidget(new QPushButton("aaaa")); hBoxLay->addWidget(new QPushButton("aaaa")); QSlider* slider; QSpinBox* spinBox; lay->addWidget(slider = new QSlider(Qt::Horizontal)); slider->setMaximum(100); slider->setMinimum(0); lay->addWidget(spinBox = new QSpinBox); spinBox->setMaximum(100); spinBox->setMinimum(0); connect(slider, SIGNAL(valueChanged(int)), spinBox, SLOT(setValue(int))); connect(spinBox, SIGNAL(valueChanged(int)), slider, SLOT(setValue(int))); lay->addWidget(new QDateTimeEdit); QLCDNumber* lcd; lay->addWidget(lcd = new QLCDNumber(10)); lcd->display(12345); lcd->setMode(QLCDNumber::Hex); lcd->setSegmentStyle(QLCDNumber::Outline);}void MyWidget::slotComboBoxIndexChanged(const QString &str){ qDebug() << "slotComboBoxIndexChanged" << str;}int main(int argc, char** argv){ QApplication app(argc, argv); MyWidget w; w.show(); return app.exec();}