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nux  3.0.0
CoverflowModel.h
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00001 // -*- Mode: C++; indent-tabs-mode: nil; tab-width: 2 -*-
00002 /*
00003  * Copyright (C) 2012 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: Jason Smith <jason.smith@canonical.com>
00018  */
00019 
00020 #ifndef NUX_COVERFLOWMODEL_H
00021 #define NUX_COVERFLOWMODEL_H
00022 
00023 #include <memory>
00024 #include <vector>
00025 
00026 #include <sigc++/sigc++.h>
00027 #include "CoverflowItem.h"
00028 
00029 namespace nux
00030 {
00031 
00032 class CoverflowModel : public InitiallyUnownedObject
00033 {
00034   NUX_DECLARE_OBJECT_TYPE(CoverflowModel, InitiallyUnownedObject);
00035 public:
00036   typedef ObjectPtr<CoverflowModel> Ptr;
00037   typedef std::vector<CoverflowItem::Ptr> CoverflowItemList;
00038 
00039   CoverflowModel();
00040   ~CoverflowModel();
00041 
00042   CoverflowItemList const& Items() const;
00043 
00044   void AddItem(CoverflowItem::Ptr const& item);
00045   void InsertItem(CoverflowItem::Ptr const& item, size_t index);
00046   void RemoveItem(CoverflowItem::Ptr const& item);
00047 
00048   size_t IndexOf(CoverflowItem::Ptr const& item);
00049 
00050   CoverflowItem::Ptr Selection();
00051   size_t SelectionIndex();
00052 
00053   void SetSelection(size_t index);
00054   void SetSelection(CoverflowItem::Ptr item);
00055 
00056   void SelectNext();
00057   void SelectPrev();
00058 
00059   sigc::signal<void, CoverflowModel*, CoverflowItem::Ptr> item_added;
00060   sigc::signal<void, CoverflowModel*, CoverflowItem::Ptr> item_removed;
00061   sigc::signal<void, CoverflowModel*, CoverflowItem::Ptr> selection_changed;
00062 
00063 private:
00064   struct Impl;
00065   Impl* pimpl;
00066 };
00067 
00068 }
00069 
00070 #endif