/usr/include/unity-2d-private/listmodelwrapper.h is in libunity-2d-private-dev 5.10.0-0ubuntu1.
This file is owned by root:root, with mode 0o644.
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* Copyright (C) 2011 Canonical, Ltd.
*
* Authors:
* Florian Boucault <florian.boucault@canonical.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef LISTMODELWRAPPER_H
#define LISTMODELWRAPPER_H
// Qt
#include <QAbstractListModel>
#include <QList>
#include <sigc++/signal.h>
#include <vector>
template <class WrapperItem, class ItemClass>
class ListModelWrapper : public QAbstractListModel
{
Q_ENUMS(Roles)
public:
explicit ListModelWrapper(const std::vector<ItemClass>& list,
sigc::signal<void, ItemClass> itemAddedSignal,
sigc::signal<void, ItemClass> itemRemovedSignal,
QObject *parent = 0);
~ListModelWrapper();
enum Roles {
RoleItem
};
QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const;
int rowCount(const QModelIndex& parent = QModelIndex()) const;
const QList<WrapperItem*>& rawList() const;
private:
void onItemAdded(ItemClass item);
void onItemRemoved(ItemClass item);
void onItemChanged(ItemClass item);
QList<WrapperItem*> m_list;
QMap<ItemClass, int> m_indexes;
void addItem(ItemClass item, int index);
void removeItem(ItemClass item, int index);
};
template <class WrapperItem, class ItemClass>
ListModelWrapper<WrapperItem, ItemClass>::ListModelWrapper(const std::vector<ItemClass>& list,
sigc::signal<void, ItemClass> itemAddedSignal,
sigc::signal<void, ItemClass> itemRemovedSignal,
QObject *parent) :
QAbstractListModel(parent)
{
QHash<int, QByteArray> roles;
roles[ListModelWrapper::RoleItem] = "item";
setRoleNames(roles);
for (unsigned int i=0; i<list.size(); i++) {
addItem(list[i], i);
}
itemAddedSignal.connect(sigc::mem_fun(this, &ListModelWrapper::onItemAdded));
itemRemovedSignal.connect(sigc::mem_fun(this, &ListModelWrapper::onItemRemoved));
}
template <class WrapperItem, class ItemClass>
ListModelWrapper<WrapperItem, ItemClass>::~ListModelWrapper()
{
m_indexes.clear();
while (!m_list.isEmpty()) {
delete m_list.takeFirst();
}
}
template <class WrapperItem, class ItemClass>
int ListModelWrapper<WrapperItem, ItemClass>::rowCount(const QModelIndex& parent) const
{
Q_UNUSED(parent)
return m_list.count();
}
template <class WrapperItem, class ItemClass>
const QList<WrapperItem*>& ListModelWrapper<WrapperItem, ItemClass>::rawList() const
{
return m_list;
}
template <class WrapperItem, class ItemClass>
QVariant ListModelWrapper<WrapperItem, ItemClass>::data(const QModelIndex& index, int role) const
{
if (!index.isValid()) {
return QVariant();
}
WrapperItem* item = m_list.at(index.row());
if (role == ListModelWrapper::RoleItem) {
return QVariant::fromValue(item);
} else {
return QVariant();
}
}
template <class WrapperItem, class ItemClass>
void ListModelWrapper<WrapperItem, ItemClass>::onItemAdded(ItemClass item)
{
/* FIXME: figure out actual index of item; for now items are appended */
int index = m_list.count();
beginInsertRows(QModelIndex(), index, index);
addItem(item, index);
endInsertRows();
}
template <class WrapperItem, class ItemClass>
void ListModelWrapper<WrapperItem, ItemClass>::onItemRemoved(ItemClass item)
{
int index = m_indexes[item];
beginInsertRows(QModelIndex(), index, index);
removeItem(item, index);
endInsertRows();
}
template <class WrapperItem, class ItemClass>
void ListModelWrapper<WrapperItem, ItemClass>::onItemChanged(ItemClass item)
{
QModelIndex itemIndex = index(m_indexes[item]);
Q_EMIT dataChanged(itemIndex, itemIndex);
}
template <class WrapperItem, class ItemClass>
void ListModelWrapper<WrapperItem, ItemClass>::addItem(ItemClass item, int index)
{
m_indexes.insert(item, index);
m_list.insert(index, new WrapperItem(item));
}
template <class WrapperItem, class ItemClass>
void ListModelWrapper<WrapperItem, ItemClass>::removeItem(ItemClass item, int index)
{
m_indexes.remove(item);
delete m_list.takeAt(index);
}
#endif // LISTMODELWRAPPER_H
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