void EmbeddedWebView::findScrollParent() { if (m_scrollParent) m_scrollParent->removeEventFilter(this); m_scrollParent = 0; m_scrollParentPadding = 4; QWidget *runner = this; int left, top, right, bottom; while (runner) { runner->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::Preferred); runner->getContentsMargins(&left, &top, &right, &bottom); m_scrollParentPadding += left + right + 4; if (runner->layout()) { runner->layout()->getContentsMargins(&left, &top, &right, &bottom); m_scrollParentPadding += left + right; } QWidget *p = runner->parentWidget(); if (p && qobject_cast<MessageView*>(runner) && // is this a MessageView? p->objectName() == "qt_scrollarea_viewport" && // in a viewport? qobject_cast<QAbstractScrollArea*>(p->parentWidget())) { // that is used? p->getContentsMargins(&left, &top, &right, &bottom); m_scrollParentPadding += left + right + 4; if (p->layout()) { p->layout()->getContentsMargins(&left, &top, &right, &bottom); m_scrollParentPadding += left + right; } m_scrollParent = p->parentWidget(); break; // then we have our actual message view } runner = p; } m_scrollParentPadding += style()->pixelMetric(QStyle::PM_ScrollBarExtent, 0, m_scrollParent); if (m_scrollParent) m_scrollParent->installEventFilter(this); }
// ------------------------------------------------------------------------- void ctkTreeComboBox::resizePopup() { // copied from QComboBox.cpp Q_D(ctkTreeComboBox); QStyle * const style = this->style(); QWidget* container = qobject_cast<QWidget*>(this->view()->parent()); QStyleOptionComboBox opt; this->initStyleOption(&opt); QRect listRect(style->subControlRect(QStyle::CC_ComboBox, &opt, QStyle::SC_ComboBoxListBoxPopup, this)); QRect screen = QApplication::desktop()->availableGeometry( QApplication::desktop()->screenNumber(this)); QPoint below = this->mapToGlobal(listRect.bottomLeft()); int belowHeight = screen.bottom() - below.y(); QPoint above = this->mapToGlobal(listRect.topLeft()); int aboveHeight = above.y() - screen.y(); bool boundToScreen = !this->window()->testAttribute(Qt::WA_DontShowOnScreen); const bool usePopup = style->styleHint(QStyle::SH_ComboBox_Popup, &opt, this); { int listHeight = 0; int count = 0; QStack<QModelIndex> toCheck; toCheck.push(this->view()->rootIndex()); #ifndef QT_NO_TREEVIEW QTreeView *treeView = qobject_cast<QTreeView*>(this->view()); if (treeView && treeView->header() && !treeView->header()->isHidden()) listHeight += treeView->header()->height(); #endif while (!toCheck.isEmpty()) { QModelIndex parent = toCheck.pop(); for (int i = 0; i < this->model()->rowCount(parent); ++i) { QModelIndex idx = this->model()->index(i, this->modelColumn(), parent); if (!idx.isValid()) { continue; } listHeight += this->view()->visualRect(idx).height(); /* + container->spacing() */; #ifndef QT_NO_TREEVIEW if (this->model()->hasChildren(idx) && treeView && treeView->isExpanded(idx)) { toCheck.push(idx); } #endif ++count; if (!usePopup && count > this->maxVisibleItems()) { toCheck.clear(); break; } } } listRect.setHeight(listHeight); } { // add the spacing for the grid on the top and the bottom; int heightMargin = 0;//2*container->spacing(); // add the frame of the container int marginTop, marginBottom; container->getContentsMargins(0, &marginTop, 0, &marginBottom); heightMargin += marginTop + marginBottom; //add the frame of the view this->view()->getContentsMargins(0, &marginTop, 0, &marginBottom); //marginTop += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(this->view()))->top; //marginBottom += static_cast<QAbstractScrollAreaPrivate *>(QObjectPrivate::get(this->view()))->bottom; heightMargin += marginTop + marginBottom; listRect.setHeight(listRect.height() + heightMargin); } // Add space for margin at top and bottom if the style wants it. if (usePopup) { listRect.setHeight(listRect.height() + style->pixelMetric(QStyle::PM_MenuVMargin, &opt, this) * 2); } // Make sure the popup is wide enough to display its contents. if (usePopup) { const int diff = d->computeWidthHint() - this->width(); if (diff > 0) { listRect.setWidth(listRect.width() + diff); } } //we need to activate the layout to make sure the min/maximum size are set when the widget was not yet show container->layout()->activate(); //takes account of the minimum/maximum size of the container listRect.setSize( listRect.size().expandedTo(container->minimumSize()) .boundedTo(container->maximumSize())); // make sure the widget fits on screen if (boundToScreen) { if (listRect.width() > screen.width() ) { listRect.setWidth(screen.width()); } if (this->mapToGlobal(listRect.bottomRight()).x() > screen.right()) { below.setX(screen.x() + screen.width() - listRect.width()); above.setX(screen.x() + screen.width() - listRect.width()); } if (this->mapToGlobal(listRect.topLeft()).x() < screen.x() ) { below.setX(screen.x()); above.setX(screen.x()); } } if (usePopup) { // Position horizontally. listRect.moveLeft(above.x()); #ifndef Q_WS_S60 // Position vertically so the curently selected item lines up // with the combo box. const QRect currentItemRect = this->view()->visualRect(this->view()->currentIndex()); const int offset = listRect.top() - currentItemRect.top(); listRect.moveTop(above.y() + offset - listRect.top()); #endif // Clamp the listRect height and vertical position so we don't expand outside the // available screen geometry.This may override the vertical position, but it is more // important to show as much as possible of the popup. const int height = !boundToScreen ? listRect.height() : qMin(listRect.height(), screen.height()); #ifdef Q_WS_S60 //popup needs to be stretched with screen minimum dimension listRect.setHeight(qMin(screen.height(), screen.width())); #else listRect.setHeight(height); #endif if (boundToScreen) { if (listRect.top() < screen.top()) { listRect.moveTop(screen.top()); } if (listRect.bottom() > screen.bottom()) { listRect.moveBottom(screen.bottom()); } } #ifdef Q_WS_S60 if (screen.width() < screen.height()) { // in portait, menu should be positioned above softkeys listRect.moveBottom(screen.bottom()); } else { TRect staConTopRect = TRect(); AknLayoutUtils::LayoutMetricsRect(AknLayoutUtils::EStaconTop, staConTopRect); listRect.setWidth(listRect.height()); //by default popup is centered on screen in landscape listRect.moveCenter(screen.center()); if (staConTopRect.IsEmpty()) { // landscape without stacon, menu should be at the right (opt.direction == Qt::LeftToRight) ? listRect.setRight(screen.right()) : listRect.setLeft(screen.left()); } } #endif } else if (!boundToScreen || listRect.height() <= belowHeight) { listRect.moveTopLeft(below); } else if (listRect.height() <= aboveHeight) { listRect.moveBottomLeft(above); } else if (belowHeight >= aboveHeight) { listRect.setHeight(belowHeight); listRect.moveTopLeft(below); } else { listRect.setHeight(aboveHeight); listRect.moveBottomLeft(above); } #if QT_VERSION < QT_VERSION_CHECK(5,0,0) && !defined QT_NO_IM if (QInputContext *qic = this->inputContext()) { qic->reset(); } #endif QScrollBar *sb = this->view()->horizontalScrollBar(); Qt::ScrollBarPolicy policy = this->view()->horizontalScrollBarPolicy(); bool needHorizontalScrollBar = (policy == Qt::ScrollBarAsNeeded || policy == Qt::ScrollBarAlwaysOn) && sb->minimum() < sb->maximum(); if (needHorizontalScrollBar) { listRect.adjust(0, 0, 0, sb->height()); } container->setGeometry(listRect); }
void QWidgetProto::getContentsMargins(int *left, int * top, int * right, int * bottom) const { QWidget *item = qscriptvalue_cast<QWidget*>(thisObject()); if (item) item->getContentsMargins(left, top, right, bottom); }