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objecttypefilterproxymodel.h
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objecttypefilterproxymodel.h
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/*
objecttypefilterproxymodel.h
This file is part of GammaRay, the Qt application inspection and
manipulation tool.
Copyright (C) 2010-2011 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com
Author: Volker Krause <volker.krause@kdab.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, either version 2 of the License, or
(at your option) any later version.
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 GAMMARAY_OBJECTTYPEFILTERPROXYMODEL_H
#define GAMMARAY_OBJECTTYPEFILTERPROXYMODEL_H
#include <QSortFilterProxyModel>
#include "objectmodelbase.h"
namespace GammaRay {
class ObjectFilterProxyModelBase : public QSortFilterProxyModel
{
public:
explicit ObjectFilterProxyModelBase(QObject *parent = 0) : QSortFilterProxyModel(parent)
{
setDynamicSortFilter(true);
}
protected:
bool filterAcceptsRow(int source_row, const QModelIndex &source_parent) const
{
const QModelIndex source_index = sourceModel()->index(source_row, 0, source_parent);
if (!source_index.isValid()) {
return false;
}
QObject *obj = source_index.data(ObjectModel::ObjectRole).value<QObject*>();
Q_ASSERT(obj);
if (!filterAcceptsObject(obj)) {
return false;
}
return QSortFilterProxyModel::filterAcceptsRow(source_row, source_parent);
}
virtual bool filterAcceptsObject(QObject *object) const = 0;
};
template <typename T>
class ObjectTypeFilterProxyModel : public ObjectFilterProxyModelBase
{
public:
explicit ObjectTypeFilterProxyModel(QObject *parent = 0)
: ObjectFilterProxyModelBase(parent) {}
protected:
virtual bool filterAcceptsObject(QObject *object) const {
return qobject_cast<T*>(object);
}
};
}
#endif // GAMMARAY_OBJECTTYPEFILTERPROXYMODEL_H