void FancyTabWidget::MakeTabBar(QTabBar::Shape shape, bool text, bool icons, bool fancy) { QTabBar* bar = new QTabBar(this); bar->setShape(shape); bar->setDocumentMode(true); bar->setUsesScrollButtons(true); bar->setElideMode(Qt::ElideRight); if (shape == QTabBar::RoundedWest) { bar->setIconSize(QSize(22, 22)); } if (fancy) { bar->setStyle(proxy_style_.get()); } if (shape == QTabBar::RoundedNorth) top_layout_->insertWidget(0, bar); else side_layout_->insertWidget(0, bar); foreach (const Item& item, items_) { if (item.type_ != Item::Type_Tab) continue; QString label = item.tab_label_; if (shape == QTabBar::RoundedWest) { label = QFontMetrics(font()).elidedText(label, Qt::ElideMiddle, 100); } int tab_id = -1; if (icons && text) tab_id = bar->addTab(item.tab_icon_, label); else if (icons) tab_id = bar->addTab(item.tab_icon_, QString()); else if (text) tab_id = bar->addTab(label); // Adds tooltips only in Tabs mode or IconOnlyTabs mode // TODO in tab mode, show only if not elided, complicated since this doesn't inherit from QTabWidget if (shape == QTabBar::RoundedNorth && ((!text && icons) || (text && !icons))) bar->setTabToolTip(tab_id, item.tab_label_); } bar->setCurrentIndex(stack_->currentIndex()); connect(bar, SIGNAL(currentChanged(int)), SLOT(ShowWidget(int))); tab_bar_ = bar; }
void FancyTabWidget::MakeTabBar(QTabBar::Shape shape, bool text, bool icons, bool fancy) { QTabBar* bar = new QTabBar(this); bar->setShape(shape); bar->setDocumentMode(true); bar->setUsesScrollButtons(true); if (shape == QTabBar::RoundedWest) { bar->setIconSize(QSize(22, 22)); } if (fancy) { bar->setStyle(proxy_style_.data()); } if (shape == QTabBar::RoundedNorth) top_layout_->insertWidget(0, bar); else side_layout_->insertWidget(0, bar); foreach (const Item& item, items_) { if (item.type_ != Item::Type_Tab) continue; QString label = item.tab_label_; if (shape == QTabBar::RoundedWest) { label = QFontMetrics(font()).elidedText(label, Qt::ElideMiddle, 100); } int tab_id = -1; if (icons && text) tab_id = bar->addTab(item.tab_icon_, label); else if (icons) tab_id = bar->addTab(item.tab_icon_, QString()); else if (text) tab_id = bar->addTab(label); bar->setTabToolTip(tab_id, item.tab_label_); } bar->setCurrentIndex(stack_->currentIndex()); connect(bar, SIGNAL(currentChanged(int)), SLOT(ShowWidget(int))); tab_bar_ = bar; }
int main(int argc, char *argv[]) { QApplication app(argc, argv); auto *proxyStyle = new TabBarProxyStyle; app.setStyle(proxyStyle); QWidget widget; QStackedWidget stackedWidget; QTabBar tabBar; tabBar.setDocumentMode(true); tabBar.setTabsClosable(true); tabBar.setMovable(true); tabBar.setExpanding(false); // top tabBar.setShape(QTabBar::RoundedNorth); // bottom // tabBar.setShape(QTabBar::RoundedSouth); // left // tabBar.setShape(QTabBar::RoundedWest); // right // tabBar.setShape(QTabBar::RoundedEast); const auto shortLabel = QStringLiteral("Tab %1"); const auto longLabel = QStringLiteral("An Extremely Long Tab Label %1"); QMap<int, QWidget*> tabs; for (int i = 0; i < TabCount; i++) { QString tabNumberString = QString::number(i); QLabel *label = new QLabel(QStringLiteral("Tab %1 content").arg(tabNumberString)); tabs[i] = label; label->setAlignment(Qt::AlignCenter); stackedWidget.addWidget(label); tabBar.addTab(shortLabel.arg(tabNumberString)); } QObject::connect(&tabBar, &QTabBar::tabMoved, [&tabs](int from, int to) { QWidget *thisWidget = tabs[from]; QWidget *thatWidget = tabs[to]; tabs[from] = thatWidget; tabs[to] = thisWidget; }); QObject::connect(&tabBar, &QTabBar::currentChanged, [&stackedWidget, &tabs](int index) { if (index >= 0) stackedWidget.setCurrentWidget(tabs[index]); }); QObject::connect(&tabBar, &QTabBar::tabCloseRequested, [&stackedWidget, &tabBar, &tabs](int index) { QWidget *widget = tabs[index]; tabBar.removeTab(index); for (int i = index + 1; i < TabCount; i++) tabs[i-1] = tabs[i]; int currentIndex = tabBar.currentIndex(); if (currentIndex >= 0) stackedWidget.setCurrentWidget(tabs[currentIndex]); delete widget; }); QLayout *layout; switch (tabBar.shape()) { case QTabBar::RoundedEast: case QTabBar::TriangularEast: tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding); layout = new QHBoxLayout(&widget); layout->addWidget(&stackedWidget); layout->addWidget(&tabBar); break; case QTabBar::RoundedWest: case QTabBar::TriangularWest: tabBar.setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Expanding); layout = new QHBoxLayout(&widget); layout->addWidget(&tabBar); layout->addWidget(&stackedWidget); break; case QTabBar::RoundedNorth: case QTabBar::TriangularNorth: tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum); layout = new QVBoxLayout(&widget); layout->addWidget(&tabBar); layout->addWidget(&stackedWidget); break; case QTabBar::RoundedSouth: case QTabBar::TriangularSouth: tabBar.setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Minimum); layout = new QVBoxLayout(&widget); layout->addWidget(&stackedWidget); layout->addWidget(&tabBar); break; } TabBarForm form; layout->addWidget(&form); layout->setAlignment(&form, Qt::AlignHCenter); form.ui->documentModeButton->setChecked(tabBar.documentMode()); QObject::connect(form.ui->documentModeButton, &QCheckBox::toggled, [&] { tabBar.setDocumentMode(form.ui->documentModeButton->isChecked()); // QMacStyle (and maybe other styles) requires a re-polish to get the right font QApplication::sendEvent(&tabBar, new QEvent(QEvent::ThemeChange)); }); form.ui->movableTabsButton->setChecked(tabBar.isMovable()); QObject::connect(form.ui->movableTabsButton, &QCheckBox::toggled, [&] { tabBar.setMovable(form.ui->movableTabsButton->isChecked()); tabBar.update(); }); form.ui->closableTabsButton->setChecked(tabBar.tabsClosable()); QObject::connect(form.ui->closableTabsButton, &QCheckBox::toggled, [&] { tabBar.setTabsClosable(form.ui->closableTabsButton->isChecked()); tabBar.update(); }); form.ui->expandingTabsButton->setChecked(tabBar.expanding()); QObject::connect(form.ui->expandingTabsButton, &QCheckBox::toggled, [&] { tabBar.setExpanding(form.ui->expandingTabsButton->isChecked()); tabBar.update(); }); form.ui->displayIconButton->setChecked(!tabBar.tabIcon(0).isNull()); QObject::connect(form.ui->displayIconButton, &QCheckBox::toggled, [&] { const auto icon = form.ui->displayIconButton->isChecked() ? tabBar.style()->standardIcon(QStyle::SP_ComputerIcon) : QIcon(); for (int i = 0; i < tabBar.count(); i++) tabBar.setTabIcon(i, icon); }); form.ui->longLabelButton->setChecked(false); QObject::connect(form.ui->longLabelButton, &QCheckBox::toggled, [&] { const auto &label = form.ui->longLabelButton->isChecked() ? longLabel : shortLabel; for (int i = 0; i < tabBar.count(); i++) tabBar.setTabText(i, label.arg(i)); }); QObject::connect(form.ui->shapeComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), [&](int index) { Q_UNUSED(index); // TODO }); if (proxyStyle->alignment == Qt::AlignLeft) form.ui->leftAlignedButton->setChecked(true); else if (proxyStyle->alignment == Qt::AlignRight) form.ui->rightAlignedButton->setChecked(true); else form.ui->centeredButton->setChecked(true); QObject::connect(form.ui->textAlignmentGroup, QOverload<QAbstractButton *>::of(&QButtonGroup::buttonClicked), [&](QAbstractButton *b) { proxyStyle->alignment = b == form.ui->leftAlignedButton ? Qt::AlignLeft : b == form.ui->rightAlignedButton ? Qt::AlignRight : Qt::AlignCenter; QApplication::sendEvent(&tabBar, new QEvent(QEvent::StyleChange)); }); layout->setMargin(12); widget.show(); return app.exec(); }