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/*
Scan Tailor - Interactive post-processing tool for scanned pages.
Copyright (C) Joseph Artsimovich <joseph.artsimovich@gmail.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 3 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 ABSTRACTFILTER_H_
#define ABSTRACTFILTER_H_
#include "RefCountable.h"
#include "PageView.h"
#include "PageOrderOption.h"
#include <vector>
class FilterUiInterface;
class PageId;
class ProjectReader;
class ProjectWriter;
class AbstractRelinker;
class QString;
class QDomDocument;
class QDomElement;
/**
* Filters represent processing stages, like "Deskew", "Margins" and "Output".
*/
class AbstractFilter : public RefCountable
{
public:
virtual ~AbstractFilter() {}
virtual QString getName() const = 0;
virtual PageView getView() const = 0;
virtual void selected() {}
virtual int selectedPageOrder() const { return -1; }
virtual void selectPageOrder(int option) {}
virtual std::vector<PageOrderOption> pageOrderOptions() const {
return std::vector<PageOrderOption>();
}
virtual void performRelinking(AbstractRelinker const& relinker) = 0;
virtual void preUpdateUI(FilterUiInterface* ui, PageId const& page_id) = 0;
virtual QDomElement saveSettings(
ProjectWriter const& writer, QDomDocument& doc) const = 0;
virtual void loadSettings(
ProjectReader const& reader, QDomElement const& filters_el) = 0;
};
#endif