void ComboTabBar::ensureVisible(int index, int xmargin) { if (index == -1) { index = currentIndex(); } if (index < pinnedTabsCount()) { if (xmargin == -1) { xmargin = qMax(20, comboTabBarPixelMetric(PinnedTabWidth)); } m_pinnedTabBarWidget->ensureVisible(index, xmargin); } else { if (xmargin == -1) { xmargin = comboTabBarPixelMetric(OverflowedTabWidth); } index -= pinnedTabsCount(); m_mainTabBarWidget->ensureVisible(index, xmargin); } }
QSize TabBar::tabSizeHint(int index, bool fast) const { if (!m_window->isVisible()) { // Don't calculate it when window is not visible // It produces invalid size anyway return QSize(-1, -1); } const int pinnedTabWidth = comboTabBarPixelMetric(ComboTabBar::PinnedTabWidth); const int minTabWidth = comboTabBarPixelMetric(ComboTabBar::NormalTabMinimumWidth); QSize size = ComboTabBar::tabSizeHint(index); // The overflowed tabs have same size and we can use this fast method if (fast) { size.setWidth(index >= pinnedTabsCount() ? minTabWidth : pinnedTabWidth); return size; } WebTab* webTab = qobject_cast<WebTab*>(m_tabWidget->widget(index)); TabBar* tabBar = const_cast <TabBar*>(this); if (webTab && webTab->isPinned()) { size.setWidth(pinnedTabWidth); } else { int availableWidth = mainTabBarWidth() - comboTabBarPixelMetric(ExtraReservedWidth); if (availableWidth < 0) { return QSize(-1, -1); } const int normalTabsCount = ComboTabBar::normalTabsCount(); const int maxTabWidth = comboTabBarPixelMetric(ComboTabBar::NormalTabMaximumWidth); if (availableWidth >= maxTabWidth * normalTabsCount) { m_normalTabWidth = maxTabWidth; size.setWidth(m_normalTabWidth); } else if (normalTabsCount > 0) { const int minActiveTabWidth = comboTabBarPixelMetric(ComboTabBar::ActiveTabMinimumWidth); int maxWidthForTab = availableWidth / normalTabsCount; int realTabWidth = maxWidthForTab; bool adjustingActiveTab = false; if (realTabWidth < minActiveTabWidth) { maxWidthForTab = normalTabsCount > 1 ? (availableWidth - minActiveTabWidth) / (normalTabsCount - 1) : 0; realTabWidth = minActiveTabWidth; adjustingActiveTab = true; } bool tryAdjusting = availableWidth >= minTabWidth * normalTabsCount; if (m_showCloseOnInactive != 1 && tabsClosable() && availableWidth < (minTabWidth + 25) * normalTabsCount) { // Hiding close buttons to save some space tabBar->setTabsClosable(false); tabBar->showCloseButton(currentIndex()); } if (m_showCloseOnInactive == 1) { // Always showing close buttons tabBar->setTabsClosable(true); tabBar->showCloseButton(currentIndex()); } if (tryAdjusting) { m_normalTabWidth = maxWidthForTab; // Fill any empty space (we've got from rounding) with active tab if (index == mainTabBarCurrentIndex()) { if (adjustingActiveTab) { m_activeTabWidth = (availableWidth - minActiveTabWidth - maxWidthForTab * (normalTabsCount - 1)) + realTabWidth; } else { m_activeTabWidth = (availableWidth - maxWidthForTab * normalTabsCount) + maxWidthForTab; } size.setWidth(m_activeTabWidth); } else { size.setWidth(m_normalTabWidth); } } } // Restore close buttons according to preferences if (m_showCloseOnInactive != 2 && !tabsClosable() && availableWidth >= (minTabWidth + 25) * normalTabsCount) { tabBar->setTabsClosable(true); // Hide close buttons on pinned tabs for (int i = 0; i < count(); ++i) { tabBar->updatePinnedTabCloseButton(i); } } } if (index == count() - 1) { WebTab* lastMainActiveTab = qobject_cast<WebTab*>(m_tabWidget->widget(mainTabBarCurrentIndex())); int xForAddTabButton = cornerWidth(Qt::TopLeftCorner) + pinTabBarWidth() + normalTabsCount() * m_normalTabWidth; if (lastMainActiveTab && m_activeTabWidth > m_normalTabWidth) { xForAddTabButton += m_activeTabWidth - m_normalTabWidth; } if (QApplication::layoutDirection() == Qt::RightToLeft) { xForAddTabButton = width() - xForAddTabButton; } emit tabBar->moveAddTabButton(xForAddTabButton); } return size; }