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unity  6.0.0
RadioOptionFilter.h
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00001 // -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
00002 /*
00003  * Copyright (C) 2011 Canonical Ltd
00004  *
00005  * This program is free software: you can redistribute it and/or modify
00006  * it under the terms of the GNU General Public License version 3 as
00007  * published by the Free Software Foundation.
00008  *
00009  * This program is distributed in the hope that it will be useful,
00010  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00011  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00012  * GNU General Public License for more details.
00013  *
00014  * You should have received a copy of the GNU General Public License
00015  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
00016  *
00017  * Authored by: Neil Jagdish Patel <neil.patel@canonical.com>
00018  */
00019 
00020 #ifndef UNITY_RADIO_OPTION_FILTER_H
00021 #define UNITY_RADIO_OPTION_FILTER_H
00022 
00023 #include "Filter.h"
00024 
00025 namespace unity
00026 {
00027 namespace dash
00028 {
00029 
00030 class RadioOptionFilter : public Filter
00031 {
00032 public:
00033   typedef std::shared_ptr<RadioOptionFilter> Ptr;
00034   typedef std::vector<FilterOption::Ptr> RadioOptions;
00035 
00036   RadioOptionFilter(DeeModel* model, DeeModelIter* iter);
00037 
00038   void Clear();
00039 
00040   nux::ROProperty<RadioOptions> options;
00041 
00042   sigc::signal<void, FilterOption::Ptr> option_added;
00043   sigc::signal<void, FilterOption::Ptr> option_removed;
00044 
00045 protected:
00046   void Update(Filter::Hints& hints);
00047 
00048 private:
00049   void UpdateState();
00050   RadioOptions const& get_options() const;
00051   void OptionChanged(bool is_active, std::string const& id);
00052 
00053 private:
00054   RadioOptions options_;
00055   bool ignore_changes_;
00056 };
00057 
00058 }
00059 }
00060 
00061 #endif