如果您想要做这件事,我建议您使用QTabBar
而不是QTabWidget
。例如,您的代码可以是这样的(请记住,这只是一个非常简单的例子):
// Here some first widget
QWidget *wid1 = new QWidget(this);
QHBoxLayout *wid1Lay = new QHBoxLayout(wid1);
wid1Lay->addWidget(new QLabel(tr("Widget1")));
// Here some second widget
QWidget *wid2 = new QWidget(this);
QHBoxLayout *wid2Lay = new QHBoxLayout(wid2);
wid2Lay->addWidget(new QLabel(tr("Widget2")));
// Here some third widget
QWidget *wid3 = new QWidget(this);
QHBoxLayout *wid3Lay = new QHBoxLayout(wid3);
wid3Lay->addWidget(new QLabel(tr("Widget3")));
// Here your Tab bar with only bars
QTabBar *bar = new QTabBar(this);
bar->addTab("One");
bar->addTab("Two");
bar->addTab("Three");
// Here some label (for example, current time) and button
QLabel *lab = new QLabel(tr("Some text"), this);
QPushButton *but = new QPushButton(tr("Push"), this);
// Main layouts
QVBoxLayout *vLay = new QVBoxLayout(ui->centralWidget);
QHBoxLayout *hLay = new QHBoxLayout();
vLay->addLayout(hLay);
hLay->addWidget(bar);
// Spacer for expanding left and right sides
hLay->addItem(new QSpacerItem(0, 0, QSizePolicy::Expanding, QSizePolicy::Minimum));
hLay->addWidget(lab);
hLay->addWidget(but);
vLay->addWidget(wid1);
vLay->addWidget(wid2);
vLay->addWidget(wid3);
// Some simple connect with lambda for navigation
connect(bar, &QTabBar::currentChanged, [=] (int index) {
wid1->setVisible(false);
wid2->setVisible(false);
wid3->setVisible(false);
switch(index) {
case 0: wid1->setVisible(true);
break;
case 1: wid2->setVisible(true);
break;
case 2: wid3->setVisible(true);
break;
default:{}
}
});
emit bar->currentChanged(0);
可以通过使用QTabWidget::setCornerWidget实现。
快速示例:
QWidget* pTabCornerWidget = new QWidget(this);
QLabel* pLabelTime = new QLabel(pTabCornerWidget);
pLabelTime->setText("10:22:20");
QPushButton* pButton = new QPushButton(pTabCornerWidget);
pButton->setText("?");
pButton->setMaximumSize(QSize(25, 25));
QHBoxLayout* pHLayout = new QHBoxLayout(pTabCornerWidget);
pHLayout->addWidget(pLabelTime);
pHLayout->addWidget(pButton);
mUI.tabWidget->setCornerWidget(pTabCornerWidget, Qt::TopRightCorner);
QStackedWidget
来显示一个小部件而不是手动地隐藏和显示小部件。你可以直接连接到它的setCurrentIndex()
槽函数。 - Mike