Qt常用控件

Bertha 。 2021-11-22 10:40 465阅读 0赞

### ![20190724195649392.png][]    控件栈容器 ###

![20190724200231234.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70][]

![20190724200500182.png][]

#ifndef MAINWINDOW_H
    #define MAINWINDOW_H
    
    #include <QMainWindow>
    
    namespace Ui {
    class MainWindow;
    }
    
    class MainWindow : public QMainWindow
    {
        Q_OBJECT
    
    public:
        explicit MainWindow(QWidget *parent = 0);
        ~MainWindow();
    //添加槽
    private slots:
        void on_change_clicked();
    
    private:
        Ui::MainWindow *ui;
    };
    
    #endif // MAINWINDOW_H

![20190724200645641.png][]

#include "mainwindow.h"
    #include "ui_mainwindow.h"
    
    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        //界面中的任何操作都是在这句话里面完成，代码写在这句话下面
        ui->setupUi(this);
    
      }
    
    MainWindow::~MainWindow()
    {
        delete ui;
    }
    
    void MainWindow::on_change_clicked()
    {
        static int i = 0;
        ui -> stackedWidget ->setCurrentIndex(++i % 4);
    }

![20190724201210873.png][]

![20190724202312773.png][]

###             ![20190724201817312.png][]                           ![20190724201833163.png][]   布局 ###

![20190724202811335.png][]            ![20190724202835444.png][]

###          效果： ###

![20190724202931675.png][]

![20190724203114119.png][]

### 效果： ###

![20190724203306885.png][]

![20190724203417823.png][]

![20190724203723824.png][]

![20190724204100572.png][]

![20190724204709110.png][]

### 效果： ###

![20190724204800960.png][]                                          ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70 1][]

![20190724205104397.png][]

![20190724212137831.png][]

#include "mainwindow.h"
    #include "ui_mainwindow.h"
    #include <QDebug>  //控制台打印
    #include <QCompleter> //设置有提示的内容
    #include <QStringList> //字符串列表
    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        //界面中的任何操作都是在这句话里面完成，代码写在这句话下面
        ui->setupUi(this);
    
         //QLineEdit
        QString str = ui->lineEdit->text();//获取内容
        qDebug() << str;
    
        //设置内容
        ui->lineEdit->setText("12345678");
    
        //设置内容显示间隙
        ui->lineEdit->setTextMargins(15,0,0,0);
    
        //设置内容显示方式
    //    ui->lineEdit->setEchoMode(QLineEdit::Password);
    
        //设置有提示的内容
        QStringList list;
        list << "hello" << "how are you" << "hehe";
        QCompleter *com = new QCompleter(list,this);
        com->setCaseSensitivity(Qt::CaseInsensitive);
    
        ui->lineEdit->setCompleter(com);
    
    }
    
    MainWindow::~MainWindow()
    {
        delete ui;
    }

### 效果： ###

![20190724212722439.png][]

![20190724212754597.png][]

![20190724212907396.png][]

![20190724213036104.png][]

![20190725075727452.png][]

![20190724214408553.png][]

![20190724214540551.png][]

![20190725080532794.png][]

###         如何向项目里面添加图片 ###

1）项目---> 添加新文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70 2][]

2）Resources--->image.qrc(右键)--->Open in  Editor--->添加--->添加前缀--->添加文件--->复制资源路径到剪贴板

![20190725082322267.png][]

![20190725091311228.png][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pzMTM0MjA4NDc3Ng_size_16_color_FFFFFF_t_70 3][]

![20190725091439534.png][]

#include "mainwindow.h"
    #include "ui_mainwindow.h"
    #include <QMovie>  //设置动画
    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        //界面中的任何操作都是在这句话里面完成，代码写在这句话下面
        ui->setupUi(this);
    
         //QLabel 设置文本内容
        ui->labelText->setText("^_^");
    
        //设置图片
       ui->labelImage->setPixmap(QPixmap("://C:/Users/Administrator/Desktop/1.jpg"));
           //让图片自动适应label大小
       ui->labelImage->setScaledContents(true);
    
       //创建动画
       QMovie *myMovie = new QMovie("://C:/Users/Administrator/Desktop/2.jpg");
         //设置动画
       ui->labelGif->setMovie(myMovie);
         //启动动画
       myMovie->start();
       //让动画自动适应label大小
       ui->labelGif->setScaledContents(true);
    
       //设置html
       ui->labelUrl->setText("<h1><a href=\"https://www.baidu.com\">百度一下</a></h1>");
          //打开外部链接
         ui->labelUrl->setOpenExternalLinks(true);
    }
    
    MainWindow::~MainWindow()
    {
        delete ui;
    }

###             效果： ###

![20190725091744441.png][]

![20190725092011680.png][]

![20190725092041145.png][]

![20190725092908741.png][]

![20190725093508883.png][]

![20190725093555901.png][]

#include "mainwindow.h"
    #include "ui_mainwindow.h"
    MainWindow::MainWindow(QWidget *parent) :
        QMainWindow(parent),
        ui(new Ui::MainWindow)
    {
        //界面中的任何操作都是在这句话里面完成，代码写在这句话下面
        ui->setupUi(this);
    
         //数码管
         ui->lcdNumber->display(123); //设置内容
    
         //进度条
         ui->progressBar->setMinimum(0);//设置最小值
         ui->progressBar->setMaximum(200);//设置最大值
         ui->progressBar->setValue(100);//设置当前值
    }
    MainWindow::~MainWindow()
    {
        delete ui;
    }

###                效果：     ###

![20190725093735730.png][]

[20190724195649392.png]: /images/20211122/361c803e6fdc425088f158ed89a3b987.png
[20190724200231234.png]: /images/20211122/3179fc0131684c3e9f77663bb8d66b4e.png
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[20190724200500182.png]: /images/20211122/c5c6d8f077584d259971dc93c6fb61ef.png
[20190724200645641.png]: /images/20211122/e54d1b898f4d4cd5a740e751dccce52d.png
[20190724201210873.png]: /images/20211122/6a68786d439a4cb0b3f3d4adc45a1b7a.png
[20190724202312773.png]: /images/20211122/97d294db137049ebbb3e2cd0af53acf3.png
[20190724201817312.png]: https://img-blog.csdnimg.cn/20190724201817312.png
[20190724201833163.png]: /images/20211122/862c7f200ade45c9a45f8ca4c9110078.png
[20190724202811335.png]: https://img-blog.csdnimg.cn/20190724202811335.png
[20190724202835444.png]: /images/20211122/acaa81697e7149b58a026522390a0d59.png
[20190724202931675.png]: /images/20211122/879f430a05d34217aff9d097b69693d8.png
[20190724203114119.png]: /images/20211122/1eadd3343fac4238b7da7dad362cbc3e.png
[20190724203306885.png]: /images/20211122/0185a1602ce14e4e8054aa0b2baa6083.png
[20190724203417823.png]: /images/20211122/9bfe078d4c504996ae701c46a07ca653.png
[20190724203723824.png]: /images/20211122/6353eaaf9e69443c9059d57af907b3f6.png
[20190724204100572.png]: /images/20211122/d061224b8f79431c9a63919a8efc74b3.png
[20190724204709110.png]: /images/20211122/9c0751dac95a4624a2ba6509287bcdbe.png
[20190724204800960.png]: https://img-blog.csdnimg.cn/20190724204800960.png
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[20190724205104397.png]: /images/20211122/0f0eb4455d4c4eb39f289f8d848d356d.png
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[20190724212907396.png]: /images/20211122/28198231a77342ed99de477f5a7c29e2.png
[20190724213036104.png]: /images/20211122/25538af46e2c4aadb1764aefbc300c6d.png
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[20190724214408553.png]: /images/20211122/1f43269c61fe41f1b663e5c7933a0e09.png
[20190724214540551.png]: /images/20211122/8ab0a18964604bc9bbb12abefdb77948.png
[20190725080532794.png]: /images/20211122/e88a7f22c3ec440493beb60d6c5236f9.png
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[20190725082322267.png]: /images/20211122/e8c77cc8dcb9482eb577382f202d2fd0.png
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[20190725091439534.png]: /images/20211122/f3e62b77c72d438f8b1550e1803e4be2.png
[20190725091744441.png]: /images/20211122/fd6bcabab82d41e19e8719df21917bd5.png
[20190725092011680.png]: /images/20211122/4ffeeed2fcea4e0599c9f7095f616663.png
[20190725092041145.png]: /images/20211122/8e70ea33a23b4176a4edebf4f3f621d3.png
[20190725092908741.png]: /images/20211122/f5b3b30675c94915aeeef9948c450d28.png
[20190725093508883.png]: /images/20211122/b5a19d3171a04736960926111b6cc77c.png
[20190725093555901.png]: /images/20211122/3d4006dd46c643208b34fbe84c398315.png
[20190725093735730.png]: /images/20211122/e84f7ee3891949ab9acd8c1362c3740b.png