diff options
Diffstat (limited to 'tests/manual/examples/widgets/itemviews/simpledommodel/dommodel.cpp')
-rw-r--r-- | tests/manual/examples/widgets/itemviews/simpledommodel/dommodel.cpp | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/tests/manual/examples/widgets/itemviews/simpledommodel/dommodel.cpp b/tests/manual/examples/widgets/itemviews/simpledommodel/dommodel.cpp new file mode 100644 index 0000000000..17f05c8be3 --- /dev/null +++ b/tests/manual/examples/widgets/itemviews/simpledommodel/dommodel.cpp @@ -0,0 +1,153 @@ +// Copyright (C) 2016 The Qt Company Ltd. +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +#include "dommodel.h" +#include "domitem.h" + +#include <QtXml> + +//! [0] +DomModel::DomModel(const QDomDocument &document, QObject *parent) + : QAbstractItemModel(parent), + domDocument(document), + rootItem(new DomItem(domDocument, 0)) +{ +} +//! [0] + +//! [1] +DomModel::~DomModel() +{ + delete rootItem; +} +//! [1] + +//! [2] +int DomModel::columnCount(const QModelIndex &parent) const +{ + Q_UNUSED(parent); + return 3; +} +//! [2] + +//! [3] +QVariant DomModel::data(const QModelIndex &index, int role) const +{ + if (!index.isValid()) + return QVariant(); + + if (role != Qt::DisplayRole) + return QVariant(); + + const DomItem *item = static_cast<DomItem*>(index.internalPointer()); + + const QDomNode node = item->node(); +//! [3] //! [4] + + switch (index.column()) { + case 0: + return node.nodeName(); + case 1: + { + const QDomNamedNodeMap attributeMap = node.attributes(); + QStringList attributes; + for (int i = 0; i < attributeMap.count(); ++i) { + QDomNode attribute = attributeMap.item(i); + attributes << attribute.nodeName() + "=\"" + + attribute.nodeValue() + '"'; + } + return attributes.join(' '); + } + case 2: + return node.nodeValue().split('\n').join(' '); + default: + break; + } + return QVariant(); +} +//! [4] + +//! [5] +Qt::ItemFlags DomModel::flags(const QModelIndex &index) const +{ + if (!index.isValid()) + return Qt::NoItemFlags; + + return QAbstractItemModel::flags(index); +} +//! [5] + +//! [6] +QVariant DomModel::headerData(int section, Qt::Orientation orientation, + int role) const +{ + if (orientation == Qt::Horizontal && role == Qt::DisplayRole) { + switch (section) { + case 0: + return tr("Name"); + case 1: + return tr("Attributes"); + case 2: + return tr("Value"); + default: + break; + } + } + return QVariant(); +} +//! [6] + +//! [7] +QModelIndex DomModel::index(int row, int column, const QModelIndex &parent) const +{ + if (!hasIndex(row, column, parent)) + return QModelIndex(); + + DomItem *parentItem; + + if (!parent.isValid()) + parentItem = rootItem; + else + parentItem = static_cast<DomItem*>(parent.internalPointer()); +//! [7] + +//! [8] + DomItem *childItem = parentItem->child(row); + if (childItem) + return createIndex(row, column, childItem); + return QModelIndex(); +} +//! [8] + +//! [9] +QModelIndex DomModel::parent(const QModelIndex &child) const +{ + if (!child.isValid()) + return QModelIndex(); + + DomItem *childItem = static_cast<DomItem*>(child.internalPointer()); + DomItem *parentItem = childItem->parent(); + + if (!parentItem || parentItem == rootItem) + return QModelIndex(); + + return createIndex(parentItem->row(), 0, parentItem); +} +//! [9] + +//! [10] +int DomModel::rowCount(const QModelIndex &parent) const +{ + if (parent.column() > 0) + return 0; + + DomItem *parentItem; + + if (!parent.isValid()) + parentItem = rootItem; + else + parentItem = static_cast<DomItem*>(parent.internalPointer()); + + return parentItem->node().childNodes().count(); +} +//! [10] |