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/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** GNU Lesser General Public License Usage
** Alternatively, 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 1.0, 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.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/
#include <QtDebug>
#include "TestContainer.h"
#include "TreeModel.h"
using namespace QPatternistSDK;
TreeModel::TreeModel(const QStringList columnData,
QObject *p) : QAbstractItemModel(p),
m_root(0),
m_columnData(columnData)
{
}
TreeModel::~TreeModel()
{
}
QVariant TreeModel::data(const QModelIndex &idx, int role) const
{
if(!idx.isValid())
return QVariant();
TreeItem *item = static_cast<TreeItem *>(idx.internalPointer());
Q_ASSERT(item);
return item->data(static_cast<Qt::ItemDataRole>(role), idx.column());
}
QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if(orientation == Qt::Horizontal && role == Qt::DisplayRole)
return m_columnData.value(section);
return QVariant();
}
void TreeModel::childChanged(TreeItem *item)
{
if (item) {
const QModelIndex index = createIndex(item->row(), 0, item);
dataChanged(index, index);
} else {
layoutChanged();
}
}
QModelIndex TreeModel::index(int row, int column, const QModelIndex &p) const
{
const int c = columnCount(p);
if(row < 0 || column < 0 || column >= c)
return QModelIndex();
TreeItem *parentItem;
if(p.isValid())
parentItem = static_cast<TreeItem *>(p.internalPointer());
else
parentItem = m_root;
if(!parentItem)
return QModelIndex();
TreeItem *childItem = parentItem->child(row);
if(childItem)
return createIndex(row, column, childItem);
else
return QModelIndex();
}
QModelIndex TreeModel::parent(const QModelIndex &idx) const
{
if(!idx.isValid())
return QModelIndex();
TreeItem *childItem = static_cast<TreeItem *>(idx.internalPointer());
Q_ASSERT(childItem);
TreeItem *parentItem = childItem->parent();
if(!parentItem || parentItem == m_root)
return QModelIndex();
Q_ASSERT(parentItem);
return createIndex(parentItem->row(), 0, parentItem);
}
Qt::ItemFlags TreeModel::flags(const QModelIndex &idx) const
{
/* Not sure about this code. */
if(!idx.isValid())
return Qt::ItemFlags();
return Qt::ItemIsEnabled | Qt::ItemIsSelectable;
}
int TreeModel::rowCount(const QModelIndex &p) const
{
if(p.column() > 0)
return 0;
const TreeItem *parentItem;
if(p.isValid())
parentItem = static_cast<TreeItem *>(p.internalPointer());
else
{
if(m_root)
parentItem = m_root;
else
return 0;
}
return parentItem->childCount();
}
int TreeModel::columnCount(const QModelIndex &p) const
{
if(p.isValid())
return static_cast<TreeItem *>(p.internalPointer())->columnCount();
else
return m_columnData.count();
}
TreeItem *TreeModel::root() const
{
return m_root;
}
void TreeModel::setRoot(TreeItem *r)
{
TreeItem *const oldRoot = m_root;
m_root = r;
if(m_root)
connect(r, SIGNAL(changed(TreeItem *)), SLOT(childChanged(TreeItem *)));
reset(); /* Notify views that we have radically changed. */
delete oldRoot;
}
// vim: et:ts=4:sw=4:sts=4
|
