本文整理汇总了C++中TabBar::grabMouse方法的典型用法代码示例。如果您正苦于以下问题：C++ TabBar::grabMouse方法的具体用法？C++ TabBar::grabMouse怎么用？C++ TabBar::grabMouse使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类TabBar的用法示例。
在下文中一共展示了TabBar::grabMouse方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: mouseMoveEvent
void TabBar::mouseMoveEvent(QMouseEvent* event) {
// while dragging
if (event->buttons() & Qt::LeftButton) {
// If we call winId() here, drag no longer works.
// qDebug() << "mouseMoveEvent. pos:" << event->pos() << "globalPos:" << event->globalPos();
// qDebug() << "mouseMoveEvent" << event;
// first mouse enter event after dragging
if (m_dragInitiated && geometry().contains(event->pos())) {
qDebug("first mouse enter event");
finishDrag();
// Start mouse move
emit onDetachTabEntered(event->screenPos().toPoint());
return QTabBar::mouseMoveEvent(event);
}
// dragging tab is over an another tab bar.
TabBar* anotherTabBar = App::tabBarAt(event->screenPos().x(), event->screenPos().y());
if (m_dragInitiated && anotherTabBar && anotherTabBar != this) {
qDebug("dragging tab is over an another tab bar.");
finishDrag();
// NOTE: dirty Hack!!!
//
// TabView A TabView B
// tab1 tab2 tab3
//
// When starting to move a tab1, in QTabBarPrivate d->pressedIndex is 0
// When tab1 passes tab2, d->pressedIndex is 1
// When tab1 moves to TabView B, this code block is executed and onDetachTabEntered is
// emitted
// In TabView::detachTabEntered, insertTab is called with tab1
// TabView B becomes the parent of tab1 and TabView A removes tab1 becaues it's no longer
// parent
// In paintEvent of TabView A, it tries to paint d->tabList[d->pressedIndex] but crash occurs
// because it's out of range
//
// In mouseReleaseEvent below, it resets d->pressedIndex to -1 to avoid the situation above
mouseReleaseEvent(new QMouseEvent(QEvent::MouseButtonRelease, event->screenPos().toPoint(),
Qt::LeftButton, Qt::LeftButton, Qt::NoModifier));
emit anotherTabBar->onDetachTabEntered(event->screenPos().toPoint());
anotherTabBar->m_sourceTabBar = this;
anotherTabBar->grabMouse();
return;
}
if (m_dragInitiated && m_fakeWindow) {
m_fakeWindow->moveWithOffset(event->globalPos());
return QTabBar::mouseMoveEvent(event);
}
// qDebug() << "manhattanLength? " << ((event->pos() - m_dragStartPos).manhattanLength() <
// QApplication::startDragDistance()) << "outside of tabbar? " <<
// !geometry().contains(event->pos());
if (!m_dragStartPos.isNull() && ((event->buttons() & Qt::LeftButton)) &&
((event->pos() - m_dragStartPos).manhattanLength() > QApplication::startDragDistance()) &&
(!geometry().contains(event->pos()))) {
m_dragInitiated = true;
// Stop the move to be able to convert to a drag
QMouseEvent finishMoveEvent(QEvent::MouseMove, event->pos(), Qt::NoButton, Qt::NoButton,
Qt::NoModifier);
QTabBar::mouseMoveEvent(&finishMoveEvent);
// Initiate Drag
qDebug("start dragging a tab");
m_fakeWindow = new FakeWindow(this, m_dragStartPos);
m_fakeWindow->show();
emit onDetachTabStarted(tabAt(m_dragStartPos), event->screenPos().toPoint());
} else {
QTabBar::mouseMoveEvent(event);
}
// not dragging
} else {
showCloseButtonOnActiveTab(event->pos());
}
}