629d6eda5c
Replace Nokia contact email address with Qt Project website. Change-Id: I431bbbf76d7c27d8b502f87947675c116994c415 Reviewed-by: Rohan McGovern <rohan.mcgovern@nokia.com>
148 lines
4.4 KiB
C++
148 lines
4.4 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "model.h"
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#include <QIcon>
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#include <QPixmap>
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Model::Model(int rows, int columns, QObject *parent)
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: QAbstractItemModel(parent),
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services(QPixmap(":/images/services.png")),
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rc(rows), cc(columns),
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tree(new QVector<Node>(rows, Node(0)))
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{
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}
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Model::~Model()
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{
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delete tree;
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}
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QModelIndex Model::index(int row, int column, const QModelIndex &parent) const
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{
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if (row < rc && row >= 0 && column < cc && column >= 0) {
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Node *p = static_cast<Node*>(parent.internalPointer());
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Node *n = node(row, p);
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if (n)
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return createIndex(row, column, n);
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}
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return QModelIndex();
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}
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QModelIndex Model::parent(const QModelIndex &child) const
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{
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if (child.isValid()) {
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Node *n = static_cast<Node*>(child.internalPointer());
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Node *p = parent(n);
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if (p)
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return createIndex(row(p), 0, p);
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}
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return QModelIndex();
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}
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int Model::rowCount(const QModelIndex &parent) const
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{
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return (parent.isValid() && parent.column() != 0) ? 0 : rc;
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}
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int Model::columnCount(const QModelIndex &parent) const
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{
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Q_UNUSED(parent);
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return cc;
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}
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QVariant Model::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid())
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return QVariant();
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if (role == Qt::DisplayRole)
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return "Item " + QString::number(index.row()) + ":" + QString::number(index.column());
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if (role == Qt::DecorationRole) {
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if (index.column() == 0)
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return iconProvider.icon(QFileIconProvider::Folder);
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return iconProvider.icon(QFileIconProvider::File);
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}
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return QVariant();
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}
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QVariant Model::headerData(int section, Qt::Orientation orientation, int role) const
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{
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if (role == Qt::DisplayRole)
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return QString::number(section);
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if (role == Qt::DecorationRole)
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return QVariant::fromValue(services);
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return QAbstractItemModel::headerData(section, orientation, role);
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}
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bool Model::hasChildren(const QModelIndex &parent) const
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{
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if (parent.isValid() && parent.column() != 0)
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return false;
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return rc > 0 && cc > 0;
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}
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Qt::ItemFlags Model::flags(const QModelIndex &index) const
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{
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if (!index.isValid())
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return 0;
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return (Qt::ItemIsDragEnabled|Qt::ItemIsSelectable|Qt::ItemIsEnabled);
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}
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Model::Node *Model::node(int row, Node *parent) const
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{
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if (parent && !parent->children)
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parent->children = new QVector<Node>(rc, Node(parent));
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QVector<Node> *v = parent ? parent->children : tree;
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return const_cast<Node*>(&(v->at(row)));
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}
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Model::Node *Model::parent(Node *child) const
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{
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return child ? child->parent : 0;
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}
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int Model::row(Node *node) const
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{
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const Node *first = node->parent ? &(node->parent->children->at(0)) : &(tree->at(0));
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return (node - first);
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}
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