I have a MainWindow subclassed by QMainWindow, and also a QDockWindow on the bottom of the MainWindow. Then I add a QWidgetStack into the QDockWindow. The QWidgetStack contains two QHBox. Each QHBox is a toolbar. Finally, I want to switch on/off between the two toolbar by clicking a toolbutton, that is why I use a QWidgerStack in the QDockWindow.

However, despite of the swicth on/off functionality, the QDockWindow has a ridiculous presentation or performance, it can not show correctly!

Below is my code, Please Help Me!

Qt Code: 
  1. #include <qapplication.h>
  2. #include <qstring.h>
  3. #include <qmainwindow.h>
  4. #include <qdockwindow.h>
  5. #include <qtextedit.h>
  6. #include <qtoolbar.h>
  7. #include <qtoolbutton.h>
  8. #include <qpopupmenu.h>
  9. #include <qwidgetstack.h>
  10. #include <qhbox.h>
  11. #include <qlayout.h>
  12.  
  13.  
  14. class MainWindow:public QMainWindow
  15. {
  16. public:
  17.         MainWindow(const QString& filename );
  18.         QDockWindow *toolBarDockWindow;
  19.         QWidgetStack *toolBarStack;
  20.         QWidgetStack *mainWindowStack;
  21.         QToolButton* fileButton;
  22.         QToolButton* editButton;
  23.         QToolButton* graphicButton;
  24.         QTextEdit *textEdit;
  25.  
  26. private:
  27.         void init();
  28.         QString m_filename;
  29. };
  30.  
  31. MainWindow::MainWindow(const QString& filename)
  32.         :QMainWindow(0,0,WDestructiveClose)
  33. {
  34.         int screenW;
  35.         int screenH;
  36.         screenW = QApplication::desktop()->width();
  37.         screenH = QApplication::desktop()->height();
  38.         this->resize(screenW,screenH);
  39.         m_filename = QString::null;
  40.         init();
  41. }
  42.  
  43. void MainWindow::init()
  44. {
  45.         toolBarDockWindow = new QDockWindow  (QDockWindow::InDock,this,"toolbardockwindow",0);
  46.         toolBarDockWindow->setOrientation(Qt::Horizontal);
  47.         toolBarDockWindow->setHorizontallyStretchable(TRUE);
  48.         toolBarDockWindow->setVerticallyStretchable(TRUE);
  49.         toolBarDockWindow->setMovingEnabled(FALSE);
  50.         QColor tbBkgColor;
  51.         tbBkgColor.setHsv(205,167,189);
  52.         toolBarDockWindow->setPaletteBackgroundColor(tbBkgColor);
  53.         this->moveDockWindow(toolBarDockWindow,Qt::DockBottom);
  54.  
  55.         toolBarStack = new QWidgetStack(toolBarDockWindow);
  56.         QHBox* editToolBar = new QHBox(toolBarStack);
  57.         editToolBar->setSpacing(6);
  58.         editToolBar->setMargin(6);
  59.         QHBox* graphicToolBar = new QHBox(toolBarStack);
  60.         graphicToolBar->setSpacing(6);
  61.         graphicToolBar->setMargin(6);
  62.         toolBarStack->addWidget(editToolBar,0);
  63.         toolBarStack->addWidget(graphicToolBar,1);
  64.  
  65.         fileButton = new QToolButton(editToolBar,"filebutton");
  66.         fileButton->setUsesTextLabel(TRUE);
  67.         fileButton->setTextLabel("File",FALSE);
  68.         fileButton->setFont(QFont("Times",20,QFont::Bold));
  69.         fileButton->setPopupDelay(10);
  70.  
  71.         QPopupMenu *fileMenu = new QPopupMenu(this);
  72.         fileMenu->insertItem("New File",this,SLOT(fileNew()),Qt::Key_F1);
  73.         fileMenu->insertItem("Load File",this,SLOT(fileOpen()),Qt::Key_F2);
  74.         fileMenu->insertItem("Save File",this,SLOT(fileSave()),Qt::Key_F3);
  75.         fileMenu->insertItem("Save File As...",this,SLOT(fileSaveAs()),Qt::Key_F4);
  76.         fileButton->setPopup(fileMenu);
  77.  
  78.         editButton = new QToolButton(editToolBar,"editbutton");
  79.         editButton->setUsesTextLabel(TRUE);
  80.         editButton->setTextLabel("Edit",FALSE);
  81.         editButton->setFont(QFont("Times",20,QFont::Bold));
  82.  
  83.         graphicButton = new QToolButton(editToolBar,"graphicButton");
  84.         graphicButton->setUsesTextLabel(TRUE);
  85.         graphicButton->setTextLabel("Graphic",FALSE);
  86.         graphicButton->setFont(QFont("Times",20,QFont::Bold));
  87.  
  88.         QSpacerItem* editToolBarSpacer = new QSpacerItem(0,0                                                      ,QSizePolicy::Expanding,QSizePolicy::Minimum);
  89.         editToolBar->layout()->addItem(editToolBarSpacer);
  90.  
  91.         toolBarStack->raiseWidget(0);
  92.  
  93.         textEdit = new QTextEdit(this,"textedit");
  94.         textEdit->setTextFormat(Qt::PlainText);
  95.         textEdit->setFocus();
  96.         this->setCentralWidget(textEdit);
  97. }
  98.  
  99. int main(int argc, char *argv[])
  100. {
  101.         QApplication app(argc,argv);
  102.         QString filename = QString::null;
  103.         MainWindow *mainWindow = new MainWindow(filename);
  104.         app.setMainWidget(mainWindow);
  105.         mainWindow->show();
  106.  
  107.         return app.exec();
  108. }
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