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/*
* Copyright (C) 2004-2012 Geometer Plus <[email protected]>
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef __SORTEDCATALOGITEM_H__
#define __SORTEDCATALOGITEM_H__
#include <algorithm>
#include <ZLResource.h>
#include "../NetworkComparators.h"
#include "../NetworkItems.h"
class SortedCatalogItem : public NetworkCatalogItem {
public:
class BookItemFilter {
public:
bool accepts(NetworkItem* item) const;
};
class BySeriesFilter {
public:
bool accepts(NetworkItem* item) const;
};
//TODO maybe refactor (using templates is too complex for this simple case
//(templates were used because in C++ virtual methods can't be called from constructor)
template <class T, class F>
static SortedCatalogItem* create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags, T comparator, F filter);
template <class T>
static SortedCatalogItem* create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags, T comparator);
static SortedCatalogItem* create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags);
public:
SortedCatalogItem(const NetworkCatalogItem &parent, const ZLResource &resource, const NetworkItem::List &children, int flags);
public:
std::string loadChildren(NetworkItem::List &children, shared_ptr<ZLNetworkRequest::Listener> listener);
bool isEmpty() const;
//TODO following method should be in class NetworkLibrary or smth like that
static const ZLResource &resource(const std::string &resourceKey);
protected:
NetworkItem::List myChildren;
};
template <class T, class F>
SortedCatalogItem* SortedCatalogItem::create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags, T comparator, F filter) {
NetworkItem::List tmpChildren;
for (std::size_t i = 0; i < children.size(); ++i) {
shared_ptr<NetworkItem> child = children.at(i);
if (filter.accepts(&(*child))) {
tmpChildren.push_back(child);
}
}
std::sort(tmpChildren.begin(), tmpChildren.end(), comparator);
return new SortedCatalogItem(parent, resource(resourceKey), tmpChildren, flags);
}
template <class T>
SortedCatalogItem* SortedCatalogItem::create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags, T comparator) {
return create(parent, resourceKey, children, flags, comparator, BookItemFilter());
}
inline SortedCatalogItem* SortedCatalogItem::create(const NetworkCatalogItem &parent, const std::string &resourceKey,
const NetworkItem::List &children, int flags) {
BookItemFilter filter;
NetworkItem::List tmpChildren;
for (std::size_t i = 0; i < children.size(); ++i) {
shared_ptr<NetworkItem> child = children.at(i);
if (filter.accepts(&(*child))) {
tmpChildren.push_back(child);
}
}
return new SortedCatalogItem(parent, resource(resourceKey), tmpChildren, flags);
}
#endif /* __SORTEDCATALOGITEM_H__ */
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