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/****************************************************************************
**
** Copyright (C) 2019 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Design Tooling
**
** 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.
**
****************************************************************************/
#include "treemodel.h"
#include "treeitem.h"
#include "detail/graphicsview.h"
#include <QIcon>
namespace DesignTools {
TreeModel::TreeModel(QObject *parent)
: QAbstractItemModel(parent)
, m_view(nullptr)
, m_root(new TreeItem("Root"))
{}
TreeModel::~TreeModel()
{
if (m_root) {
delete m_root;
m_root = nullptr;
}
m_view = nullptr;
}
QVariant TreeModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid())
return QVariant();
TreeItem *item = static_cast<TreeItem *>(index.internalPointer());
if (role == Qt::DecorationRole && index.column() == 0)
return item->icon();
if (role != Qt::DisplayRole)
return QVariant();
return item->data(index.column());
}
QVariant TreeModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (role != Qt::DisplayRole)
return QVariant();
if (orientation == Qt::Horizontal)
return m_root->headerData(section);
return QVariant();
}
QModelIndex TreeModel::index(int row, int column, const QModelIndex &parent) const
{
if (!hasIndex(row, column, parent))
return QModelIndex();
TreeItem *parentItem = m_root;
if (parent.isValid())
parentItem = static_cast<TreeItem *>(parent.internalPointer());
if (TreeItem *childItem = parentItem->child(row))
return createIndex(row, column, childItem);
return QModelIndex();
}
QModelIndex TreeModel::parent(const QModelIndex &index) const
{
if (!index.isValid())
return QModelIndex();
TreeItem *childItem = static_cast<TreeItem *>(index.internalPointer());
if (TreeItem *parentItem = childItem->parent()) {
if (parentItem == m_root)
return QModelIndex();
return createIndex(parentItem->row(), 0, parentItem);
}
return QModelIndex();
}
int TreeModel::rowCount(const QModelIndex &parent) const
{
if (parent.column() > 0)
return 0;
TreeItem *parentItem = m_root;
if (parent.isValid())
parentItem = static_cast<TreeItem *>(parent.internalPointer());
return parentItem->rowCount();
}
int TreeModel::columnCount(const QModelIndex &parent) const
{
Q_UNUSED(parent)
return m_root->columnCount();
}
void TreeModel::setGraphicsView(GraphicsView *view)
{
m_view = view;
}
GraphicsView *TreeModel::graphicsView() const
{
return m_view;
}
void TreeModel::initialize()
{
if (m_root)
delete m_root;
m_root = new TreeItem("Root");
}
TreeItem *TreeModel::root()
{
return m_root;
}
TreeItem *TreeModel::find(unsigned int id)
{
return m_root->find(id);
}
} // End namespace DesignTools.
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