Russian Qt Forum

#include <QApplication>
#include <QTabWidget>
#include <QPushButton>
#include <QDockWidget>

class TestPushButton:public QPushButton{
public:
    TestPushButton(QWidget*parent=0):QPushButton(parent){}
protected:
    virtual bool event(QEvent *e){
        switch((int)e->type()){
        case QEvent::MouseButtonRelease:
            setMinimumSize(width(),height());
        }
        return QPushButton::event(e);
    }
};

int main(int argc,char**argv){
    QApplication app(argc,argv);
    QDockWidget dw;
        QTabWidget *ptw=new QTabWidget;
        ptw->setTabPosition(QTabWidget::East);
        TestPushButton *ppb=new TestPushButton;
        ptw->addTab(ppb,"");
    dw.setWidget(ptw);
    dw.show();
    return app.exec();
}

int main(int argc,char**argv){
    QApplication app(argc,argv);
    QDockWidget dw;
    QWidget *pwgt=new QWidget;
    QGridLayout *pgl=new QGridLayout;
    pgl->setMargin(0);
        QTabWidget *ptw=new QTabWidget;
        ptw->setTabPosition(QTabWidget::East);
        ptw->addTab(new QWidget,"");
    pgl->addWidget(ptw,0,0,3,3);
        QStackedWidget *psw=new QStackedWidget;
        TestPushButton *ppb=new TestPushButton;
        psw->addWidget(ppb);
    pgl->addWidget(psw,1,1,1,1);
    pgl->addItem(new QSpacerItem(QApplication::style()->pixelMetric(QStyle::PM_TabBarTabHSpace)-QApplication::style()->pixelMetric(QStyle::PM_LayoutHorizontalSpacing),0),1,2);
    pwgt->setLayout(pgl);
    dw.setWidget(pwgt);
    dw.show();
    return app.exec();
}