Qt布局之管理

QDockWidget::DockWidgetClosable	停靠窗可关闭
QDockWidget::DockWidgetMovable	停靠窗可移动
QDockWidget::DockWidgetFloatable	停靠窗可浮动
QDockWidget::DockWidgetVerticalTitleBar	标题栏垂直放置
QDockWidget::AllDockWidgetFeatures	可关闭、可移动、可浮动
QDockWidget::NoDockWidgetFeatures	不可关闭、不可移动、不可浮动

void setAllowedAreas ( Qt::DockWidgetAreas areas )

Qt::LeftDockWidgetArea	可在中央控件的左侧停靠
Qt::RightDockWidgetArea	可在中央控件的右侧停靠
Qt::TopDockWidgetArea	可在中央控件的顶部停靠
Qt::BottomDockWidgetArea	可在中央控件的底部停靠
Qt::AllDockWidgetAreas	可在中央控件的任意方向停靠
Qt::NoDockWidgetArea	只可停靠在插入处

---

dockwindows.h

#ifndef DOCKWINDOWS_H
#define DOCKWINDOWS_H

#include <QtGui>

class DockWindows : public QMainWindow
{
  Q_OBJECT

public:
  DockWindows(QWidget *parent = 0, Qt::WFlags flags = 0);
  ~DockWindows();
};

#endif // DOCKWINDOWS_H

dockwindows.cpp

#include "dockwindows.h"
#include <QDockWidget>
DockWindows::DockWindows(QWidget *parent, Qt::WFlags flags)
  : QMainWindow(parent, flags)
{
  setWindowTitle(tr("Dock Windows"));
  QTextEdit *edt = new QTextEdit(tr("Main Window"),this);
  setCentralWidget(edt);  //把edt设置为中心控件
  
  //停靠窗口1：
  QDockWidget *dockWidget1 = new QDockWidget(tr("Dock Window 1"),this);
  dockWidget1->setFeatures(QDockWidget::DockWidgetMovable);
  dockWidget1->setAllowedAreas(Qt::LeftDockWidgetArea | Qt::RightDockWidgetArea);
  QTextEdit *edt1 = new QTextEdit(tr("Window 1"));
  dockWidget1->setWidget(edt1);
  addDockWidget(Qt::RightDockWidgetArea,dockWidget1);

  //停靠窗口2：
  QDockWidget *dockWidget2 = new QDockWidget(tr("Dock Window 2"),this);
  dockWidget2->setFeatures(QDockWidget::DockWidgetFloatable | QDockWidget::DockWidgetClosable);
  QTextEdit *edt2 = new QTextEdit(tr("Window 2"));
  dockWidget2->setWidget(edt2);
  addDockWidget(Qt::LeftDockWidgetArea,dockWidget2);

  //停靠窗口3：
  QDockWidget *dockWidget3 = new QDockWidget(tr("Dock Window 3"),this);
  dockWidget3->setFeatures(QDockWidget::AllDockWidgetFeatures);
  QTextEdit *edt3 = new QTextEdit(tr("Window 3"));
  dockWidget3->setWidget(edt3);
  addDockWidget(Qt::BottomDockWidgetArea,dockWidget3);
  
}

DockWindows::~DockWindows()
{

}