void TabBar::tabRemoved(int index)
{
Q_UNUSED(index)
showCloseButton(currentIndex());
setVisible(!(count() == 1 && m_hideTabBarWithOneTab));
// Make sure to move add tab button to correct position when there are no normal tabs
if (normalTabsCount() == 0) {
int xForAddTabButton = cornerWidth(Qt::TopLeftCorner) + pinTabBarWidth();
if (QApplication::layoutDirection() == Qt::RightToLeft)
xForAddTabButton = width() - xForAddTabButton;
emit moveAddTabButton(xForAddTabButton);
}
}
void ComboTabBar::paintEvent(QPaintEvent* ev)
{
Q_UNUSED(ev);
// This is needed to apply style sheets
QStyleOption option;
option.init(this);
QPainter p(this);
style()->drawPrimitive(QStyle::PE_Widget, &option, &p, this);
#ifndef Q_OS_MAC
// Draw tabbar base even on parts of ComboTabBar that are not directly QTabBar
QStyleOptionTabBarBaseV2 opt;
TabBarHelper::initStyleBaseOption(&opt, m_mainTabBar, size());
// Left container
opt.rect.setX(m_leftContainer->x());
opt.rect.setWidth(m_leftContainer->width());
style()->drawPrimitive(QStyle::PE_FrameTabBarBase, &opt, &p);
// Right container
opt.rect.setX(m_rightContainer->x());
opt.rect.setWidth(m_rightContainer->width());
style()->drawPrimitive(QStyle::PE_FrameTabBarBase, &opt, &p);
if (m_mainBarOverFlowed) {
const int scrollButtonWidth = m_mainTabBarWidget->scrollButtonsWidth();
// Left scroll button
opt.rect.setX(m_mainTabBarWidget->x());
opt.rect.setWidth(scrollButtonWidth);
style()->drawPrimitive(QStyle::PE_FrameTabBarBase, &opt, &p);
// Right scroll button
opt.rect.setX(m_mainTabBarWidget->x() + m_mainTabBarWidget->width() - scrollButtonWidth);
opt.rect.setWidth(scrollButtonWidth);
style()->drawPrimitive(QStyle::PE_FrameTabBarBase, &opt, &p);
}
// Draw base even when main tabbar is empty
if (normalTabsCount() == 0) {
opt.rect.setX(m_mainTabBarWidget->x());
opt.rect.setWidth(m_mainTabBarWidget->width());
style()->drawPrimitive(QStyle::PE_FrameTabBarBase, &opt, &p);
}
#endif
}
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;
}