QSize TabBar::tabSizeHint(int index) const
{
MainView *view = qobject_cast<MainView *>(parent());
int buttonSize = view->addTabButton()->size().width();
int tabBarWidth = view->size().width() - buttonSize;
int baseWidth = view->sizeHint().width() / BASE_WIDTH_DIVISOR;
int minWidth = view->sizeHint().width() / MIN_WIDTH_DIVISOR;
int w;
if (baseWidth*count() < tabBarWidth)
{
w = baseWidth;
}
else
{
if (count() > 0 && tabBarWidth / count() > minWidth)
{
w = tabBarWidth / count();
}
else
{
w = minWidth;
}
}
int h = KTabBar::tabSizeHint(index).height();
QSize ts = QSize(w, h);
return ts;
}
void TabBar::showTabPreview()
{
if (m_isFirstTimeOnTab)
m_isFirstTimeOnTab = false;
//delete previous tab preview
delete m_previewPopup.data();
m_previewPopup.clear();
MainView *mv = qobject_cast<MainView *>(parent());
WebTab *indexedTab = mv->webTab(m_currentTabPreviewIndex);
WebTab *currentTab = mv->webTab(currentIndex());
// check if view && currentView exist before using them :)
if (!currentTab || !indexedTab)
return;
// no previews during load
if (indexedTab->isPageLoading())
return;
// Make sure the hovered webtab match the current size
// Only the active one is updated by window resize events
indexedTab->resize(currentTab->size());
m_previewPopup = new TabPreviewPopup(indexedTab , this);
int tabWidth = tabSizeHint(m_currentTabPreviewIndex).width();
int tabBarWidth = mv->size().width();
int leftIndex = tabRect(m_currentTabPreviewIndex).x() + (tabRect(m_currentTabPreviewIndex).width() - tabWidth) / 2;
int popupWidth = m_previewPopup.data()->thumbnailSize().width();
// Center the popup if the tab width is bigger or smaller
leftIndex += (tabWidth - popupWidth) / 2;
if (leftIndex < 0)
{
leftIndex = 0;
}
else if (leftIndex + tabWidth > tabBarWidth)
{
leftIndex = tabBarWidth - tabWidth;
}
QPoint pos(leftIndex, tabRect(m_currentTabPreviewIndex).y() + tabRect(m_currentTabPreviewIndex).height());
m_previewPopup.data()->show(mapToGlobal(pos));
}