Qt之停靠窗口QDockWidget类

设置停靠窗口的一般流程 1、创建一个QDockWidget对象的停靠窗口 2、设置此停靠窗体的属性，通常调用setFeatures()以及setAllowAreas()两种方法 3、新建一个要插入停靠窗口的控件，常用的有QListWidget和QTextEdit 4、将控件插入停靠窗口，调用QDockWidget的setWidget()方法 5、使用addDockWidget方法在MainWindow中加入此停靠窗口

步骤：

1、新建Qt GUI应用，项目名称DockWindows，基类选择"QMainWindow"，类名选择"DockWindows"，取消"创建界面" 2、修改DockWindows.h，DockWindows.cpp文件，在构造函数中实现窗口的初始化以及功能实现

DockWindows.h

#ifndef DOCKWINDOWS_H#define DOCKWINDOWS_H#include 
    
     class DockWindows : public QMainWindow{    Q_OBJECTpublic:    explicit DockWindows(QWidget *parent = 0);    ~DockWindows();};#endif // DOCKWINDOWS_H
    

 

DockWindows.cpp

#include "dockwindows.h"#include "ui_dockwindows.h"#include
    
     #include
     
      DockWindows::DockWindows(QWidget *parent) :    QMainWindow(parent){    setWindowTitle(tr("windows"));  //设置主窗口的标题栏文字    QTextEdit *te = new QTextEdit(this);  //定义一个QTextEdit对象作为主窗口    te->setText(tr("Main Window"));    te->setAlignment(Qt::AlignCenter);    setCentralWidget(te);     //将此编辑框设为主窗口的中央窗体    //停靠窗口1    QDockWidget *dock = new QDockWidget(tr("DockWindow1"), this);    dock->setFeatures(QDockWidget::DockWidgetMovable);  //可移动    dock->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);    //可以在主窗口的左/右边停靠    QTextEdit *te1 =new QTextEdit();    te1->setText(tr("Window1,The dock widget can be moved between docks by the user" ""));    dock->setWidget(te1);    addDockWidget(Qt::RightDockWidgetArea,dock);    //停靠窗口2    dock=new QDockWidget(tr("DockWindow2"),this);    dock->setFeatures(QDockWidget::DockWidgetClosable|QDockWidget::DockWidgetFloatable); //可关闭、可浮动    //  QDockWidget::NoDockWidgetFeatures   //不可以关闭，不可以移动，不可以浮动    dock->setAllowedAreas(Qt::TopDockWidgetArea | Qt::BottomDockWidgetArea);    //顶端停靠，底部停靠    QTextEdit *te2 =new QTextEdit();    te2->setText(tr("Window2,The dock widget can be detached from the main window,""and floated as an independent window, and can be closed"));    dock->setWidget(te2);    addDockWidget(Qt::RightDockWidgetArea,dock);      //停靠窗口3      dock=new QDockWidget(tr("DockWindow3"),this);      dock->setFeatures(QDockWidget::AllDockWidgetFeatures);     //全部特性      QTextEdit *te3 =new QTextEdit();      te3->setText(tr("Window3,The dock widget can be closed, moved, and floated"));      dock->setWidget(te3);      addDockWidget(Qt::RightDockWidgetArea,dock);}DockWindows::~DockWindows(){}
     
    

 

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