47 lines
884 B
C++
47 lines
884 B
C++
#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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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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#endif
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