diff options
Diffstat (limited to 'tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/abstractitemcontainer.cpp')
| -rw-r--r-- | tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/abstractitemcontainer.cpp | 382 |
1 files changed, 0 insertions, 382 deletions
diff --git a/tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/abstractitemcontainer.cpp b/tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/abstractitemcontainer.cpp deleted file mode 100644 index 00481a638d..0000000000 --- a/tests/benchmarks/gui/graphicsview/functional/GraphicsViewBenchmark/widgets/abstractitemcontainer.cpp +++ /dev/null @@ -1,382 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2016 The Qt Company Ltd. -** Contact: https://www.qt.io/licensing/ -** -** This file is part of the examples of the Qt Toolkit. -** -** $QT_BEGIN_LICENSE:GPL-EXCEPT$ -** Commercial License Usage -** Licensees holding valid commercial Qt licenses may use this file in -** accordance with the commercial license agreement provided with the -** Software or, alternatively, in accordance with the terms contained in -** a written agreement between you and The Qt Company. For licensing terms -** and conditions see https://www.qt.io/terms-conditions. For further -** information use the contact form at https://www.qt.io/contact-us. -** -** GNU General Public License Usage -** Alternatively, this file may be used under the terms of the GNU -** General Public License version 3 as published by the Free Software -** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT -** included in the packaging of this file. Please review the following -** information to ensure the GNU General Public License requirements will -** be met: https://www.gnu.org/licenses/gpl-3.0.html. -** -** $QT_END_LICENSE$ -** -****************************************************************************/ -#include <QDebug> -#include <QGraphicsLayout> - -#include "abstractitemcontainer.h" -#include "abstractitemview.h" -#include "abstractviewitem.h" -#include "scrollbar.h" - -AbstractItemContainer::AbstractItemContainer(int bufferSize, QGraphicsWidget *parent) - : GvbWidget(parent), - m_items(), - m_itemView(0), - m_prototype(0), - m_bufferSize(bufferSize), - m_twoColumns(false) -{ -} - -AbstractItemContainer::~AbstractItemContainer() -{ - delete m_prototype; - m_prototype = 0; -} - -AbstractViewItem *AbstractItemContainer::prototype() -{ - return m_prototype; -} - -int AbstractItemContainer::bufferSize() const -{ - return m_bufferSize; -} - -bool AbstractItemContainer::event(QEvent *e) -{ - if (e->type() == QEvent::LayoutRequest) - updateItemBuffer(); - - return QGraphicsWidget::event(e); -} - - -bool AbstractItemContainer::eventFilter(QObject *obj, QEvent *event) -{ - if (event->type()==QEvent::GraphicsSceneResize && m_itemView) { - const bool caching = m_itemView->listItemCaching(); - m_itemView->setListItemCaching(false); - - QSizeF s = m_itemView->size(); - s.setWidth(s.width()-m_itemView->verticalScrollBar()->size().width()); - adjustVisibleContainerSize(s); - - m_itemView->updateViewContent(); - updateItemBuffer(); - - m_itemView->setListItemCaching(caching); - } - - return QGraphicsWidget::eventFilter(obj, event); -} - -QVariant AbstractItemContainer::itemChange(GraphicsItemChange change, const QVariant &value) -{ - QVariant ichange = QGraphicsWidget::itemChange(change,value); - - if (change == ItemPositionChange) { - if (m_itemView && layout() && !layout()->isActivated()) - m_itemView->refreshContainerGeometry(); - } - return ichange; - } - -/*virtual*/ -void AbstractItemContainer::setItemView(AbstractItemView *view) -{ - m_itemView = view; - - if (m_itemView) { - setParentItem(m_itemView); - m_itemView->installEventFilter(this); - } -} -/*virtual*/ -void AbstractItemContainer::setItemPrototype(AbstractViewItem *ptype) -{ - m_prototype = ptype; - m_prototype->setParentItem(0); - m_prototype->hide(); -} - -/*virtual*/ -void AbstractItemContainer::reset() -{ - qDeleteAll(m_items); - m_items.clear(); - updateItemBuffer(); -} - - -/*virtual*/ -void AbstractItemContainer::addItem(const QModelIndex &index) -{ - if (m_items.count() < maxItemCountInItemBuffer() || - (m_items.count() > 0 && - m_items.first()->modelIndex().row()-1 <= index.row() && - m_items.last()->modelIndex().row() >= index.row())) { - int itemPos = 0; - if (m_items.count() != 0) - itemPos = qMax(0, index.row() - m_items.first()->modelIndex().row()); - - if (itemPos >= m_items.count() || m_items.at(itemPos)->modelIndex() != index) { - AbstractViewItem *item = 0; - if (m_prototype) - item = m_prototype->newItemInstance(); - - if (item) { - item->setModel(m_itemView->model()); - item->setTwoColumns(m_twoColumns); - m_items.insert(itemPos, item); - addItemToVisibleLayout(itemPos, item); - - if (item->modelIndex() != index) { - item->setModelIndex(index); - } - } - } - updateItemBuffer(); - } -} -void AbstractItemContainer::removeItem(const QModelIndex &index) -{ - AbstractViewItem *item = findItemByIndex(index); - - if (item) { - if (maxItemCountInItemBuffer() < m_items.count()) { - m_items.removeOne(item); - removeItemFromVisibleLayout(item); - - delete item; - } - else { - m_items.removeOne(item); - removeItemFromVisibleLayout(item); - - QModelIndex newIndex = m_itemView->nextIndex(m_items.last()->modelIndex()); - if (newIndex.isValid()) { - // Item readded as last item in buffer. - m_items.append(item); - addItemToVisibleLayout(m_items.count() - 1, item); - item->setModelIndex(newIndex); - } else { - // Item readded as first item in buffer. - newIndex = m_itemView->previousIndex(m_items.first()->modelIndex()); - - m_items.prepend(item); - addItemToVisibleLayout(0, item); - item->setModelIndex(newIndex); - } - } - } -} - -/*virtual*/ -int AbstractItemContainer::itemCount() const -{ - return m_items.count(); -} - -AbstractViewItem *AbstractItemContainer::firstItem() -{ - return m_items.first(); -} - -/*virtual*/ -AbstractViewItem* AbstractItemContainer::itemAt(const int row) const -{ - if (row<0 || row >= m_items.count()) - return 0; - return m_items.at(row); -} - -AbstractViewItem* AbstractItemContainer::findItemByIndex(const QModelIndex &index) const -{ - AbstractViewItem *item = 0; - for (int i = 0; i < m_items.count(); ++i) { - if (m_items.at(i)->modelIndex() == index) { - item = m_items.at(i); - break; - } - } - return item; -} - -bool AbstractItemContainer::itemVisibleInView(AbstractViewItem* item, const QRectF &viewRect, bool fullyVisible) const -{ - if (!item || !m_itemView) - return false; - - QRectF itemRectBoundingRect = item->mapToItem(m_itemView, item->boundingRect()).boundingRect(); - - if (fullyVisible && viewRect.contains(itemRectBoundingRect)) - return true; - else if (viewRect.intersects(itemRectBoundingRect)) - return true; - - return false; -} - -void AbstractItemContainer::updateItemBuffer() -{ - if (!m_itemView || (m_itemView && !m_itemView->boundingRect().isValid())) - return; - - int maxCount = maxItemCountInItemBuffer(); - - if (m_items.count() < maxCount) { - // New items needs to be added. - QModelIndex index; - if (m_items.count() > 0) - index = m_items.last()->modelIndex(); - while (m_items.count() < maxCount) { - index = m_itemView->nextIndex(index); - - if (!index.isValid()) - break; - - insertItem(m_items.count(), index); - } - - index = m_items.first()->modelIndex(); - while (m_items.count() < maxCount) { - index = m_itemView->previousIndex(index); - - if (!index.isValid()) - break; - - insertItem(0, index); - } - } - - QRectF viewRect = boundingRect(); - - while (m_items.count() > maxCount) { - int firstVisible = 0; - int lastVisible = 0; - findFirstAndLastVisibleBufferIndex(firstVisible, lastVisible, viewRect, false); - - AbstractViewItem* item = 0; - if (lastVisible != m_items.count() - 1) { - item = m_items.takeLast(); - } - else if (firstVisible != 0 && m_items.first()->modelIndex().row() != firstVisible-1) { - item = m_items.takeFirst(); - } - else { - // All the items are visible. Take the item at the end of the buffer. - item = m_items.takeLast(); - } - - m_items.removeOne(item); - removeItemFromVisibleLayout(item); - delete item; - } -} - -void AbstractItemContainer::insertItem(int pos, const QModelIndex &index) -{ - AbstractViewItem *item = 0; - if (m_prototype) - item = m_prototype->newItemInstance(); - - if (item) { - item->setModel(m_itemView->model()); - item->setModelIndex(index); - item->setTwoColumns(m_twoColumns); - m_items.insert(pos, item); - addItemToVisibleLayout(pos, item); - item->updateItemContents(); - if (pos == 0) - m_itemView->scrollContentsBy(qreal(0.0), - item->effectiveSizeHint(Qt::PreferredSize).height()); - } -} - -void AbstractItemContainer::findFirstAndLastVisibleBufferIndex(int &firstVisibleBufferIndex, - int &lastVisibleBufferIndex, - const QRectF &viewRect, - bool fullyVisible) const -{ - if (layout() && !layout()->isActivated()) - layout()->activate(); - - firstVisibleBufferIndex = -1; - lastVisibleBufferIndex = -1; - - int count = m_items.count(); - for (int i = 0; i < count; ++i) { - if (itemVisibleInView(m_items.at(i), viewRect, fullyVisible)) { - if (firstVisibleBufferIndex == -1) - firstVisibleBufferIndex = i; - lastVisibleBufferIndex = i; - } - else if ( lastVisibleBufferIndex != -1 ) - break; // lastVisibleBufferIndex is already set - } -} - -/*virtual*/ -int AbstractItemContainer::maxItemCountInItemBuffer() const -{ - if (m_itemView && !m_itemView->boundingRect().isEmpty()) - { - return m_itemView->indexCount(); - } - return 0; -} - - -void AbstractItemContainer::themeChange() -{ - for (int i = 0; i <m_items.count(); ++i) - m_items.at(i)->themeChange(); -} - -void AbstractItemContainer::updateContent() -{ - for (int i = 0; i <m_items.count(); ++i) - m_items.at(i)->updateItemContents(); -} - -void AbstractItemContainer::setSubtreeCacheEnabled(bool enabled) -{ - for (int i = 0; i <m_items.count(); ++i) - m_items.at(i)->setSubtreeCacheEnabled(enabled); - if (m_prototype) - m_prototype->setSubtreeCacheEnabled(enabled); -} - -void AbstractItemContainer::setTwoColumns(const bool enabled) -{ - if (m_twoColumns == enabled) - return; - - m_twoColumns = enabled; - - for (int i = 0; i < m_items.count(); ++i) - m_items.at(i)->setTwoColumns(enabled); -} - -bool AbstractItemContainer::twoColumns() -{ - return m_twoColumns; -} - |