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-rw-r--r--demos/interview/model.cpp147
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diff --git a/demos/interview/model.cpp b/demos/interview/model.cpp
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-/****************************************************************************
-**
-** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
-** All rights reserved.
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the demonstration applications of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** GNU Lesser General Public License Usage
-** This file may be used under the terms of the GNU Lesser General Public
-** License version 2.1 as published by the Free Software Foundation and
-** appearing in the file LICENSE.LGPL included in the packaging of this
-** file. Please review the following information to ensure the GNU Lesser
-** General Public License version 2.1 requirements will be met:
-** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain additional
-** rights. These rights are described in the Nokia Qt LGPL Exception
-** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU General
-** Public License version 3.0 as published by the Free Software Foundation
-** and appearing in the file LICENSE.GPL included in the packaging of this
-** file. Please review the following information to ensure the GNU General
-** Public License version 3.0 requirements will be met:
-** http://www.gnu.org/copyleft/gpl.html.
-**
-** Other Usage
-** Alternatively, this file may be used in accordance with the terms and
-** conditions contained in a signed written agreement between you and Nokia.
-**
-**
-**
-**
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include "model.h"
-#include <QIcon>
-#include <QPixmap>
-
-Model::Model(int rows, int columns, QObject *parent)
- : QAbstractItemModel(parent),
- services(QPixmap(":/images/services.png")),
- rc(rows), cc(columns),
- tree(new QVector<Node>(rows, Node(0)))
-{
-
-}
-
-Model::~Model()
-{
- delete tree;
-}
-
-QModelIndex Model::index(int row, int column, const QModelIndex &parent) const
-{
- if (row < rc && row >= 0 && column < cc && column >= 0) {
- Node *p = static_cast<Node*>(parent.internalPointer());
- Node *n = node(row, p);
- if (n)
- return createIndex(row, column, n);
- }
- return QModelIndex();
-}
-
-QModelIndex Model::parent(const QModelIndex &child) const
-{
- if (child.isValid()) {
- Node *n = static_cast<Node*>(child.internalPointer());
- Node *p = parent(n);
- if (p)
- return createIndex(row(p), 0, p);
- }
- return QModelIndex();
-}
-
-int Model::rowCount(const QModelIndex &parent) const
-{
- return (parent.isValid() && parent.column() != 0) ? 0 : rc;
-}
-
-int Model::columnCount(const QModelIndex &parent) const
-{
- Q_UNUSED(parent);
- return cc;
-}
-
-QVariant Model::data(const QModelIndex &index, int role) const
-{
- if (!index.isValid())
- return QVariant();
- if (role == Qt::DisplayRole)
- return "Item " + QString::number(index.row()) + ":" + QString::number(index.column());
- if (role == Qt::DecorationRole) {
- if (index.column() == 0)
- return iconProvider.icon(QFileIconProvider::Folder);
- return iconProvider.icon(QFileIconProvider::File);
- }
- return QVariant();
-}
-
-QVariant Model::headerData(int section, Qt::Orientation orientation, int role) const
-{
- if (role == Qt::DisplayRole)
- return QString::number(section);
- if (role == Qt::DecorationRole)
- return QVariant::fromValue(services);
- return QAbstractItemModel::headerData(section, orientation, role);
-}
-
-bool Model::hasChildren(const QModelIndex &parent) const
-{
- if (parent.isValid() && parent.column() != 0)
- return false;
- return rc > 0 && cc > 0;
-}
-
-Qt::ItemFlags Model::flags(const QModelIndex &index) const
-{
- if (!index.isValid())
- return 0;
- return (Qt::ItemIsDragEnabled|Qt::ItemIsSelectable|Qt::ItemIsEnabled);
-}
-
-Model::Node *Model::node(int row, Node *parent) const
-{
- if (parent && !parent->children)
- parent->children = new QVector<Node>(rc, Node(parent));
- QVector<Node> *v = parent ? parent->children : tree;
- return const_cast<Node*>(&(v->at(row)));
-}
-
-Model::Node *Model::parent(Node *child) const
-{
- return child ? child->parent : 0;
-}
-
-int Model::row(Node *node) const
-{
- const Node *first = node->parent ? &(node->parent->children->at(0)) : &(tree->at(0));
- return (node - first);
-}