66 lines
1.6 KiB
C++
66 lines
1.6 KiB
C++
/*
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* Copyright (C) 2013 Emeric Poupon
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*
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* This file is part of LMS.
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*
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* LMS is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* LMS is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with LMS. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef FILTER_WIDGET_HPP
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#define FILTER_WIDGET_HPP
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#include <boost/foreach.hpp>
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#include <string>
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#include <list>
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#include <Wt/WSignal>
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#include <Wt/WContainerWidget>
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#include "database/SqlQuery.hpp"
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namespace UserInterface {
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class FilterWidget : public Wt::WContainerWidget {
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public:
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struct Constraint {
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WhereClause where; // WHERE SQL clause
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};
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FilterWidget(Wt::WContainerWidget* parent = 0) : Wt::WContainerWidget(parent) {}
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virtual ~FilterWidget() {}
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// Refresh filter Widget using constraints created by parent filters
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virtual void refresh(const Constraint& constraint) = 0;
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// Update constraints for child filters
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virtual void getConstraint(Constraint& constraint) = 0;
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// Emitted when a constraint has changed
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Wt::Signal<void>& update() { return _update; };
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protected:
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void emitUpdate() { _update.emit(); }
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private:
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Wt::Signal<void> _update;
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};
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} // namespace UserInterface
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#endif
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