00001 /*********************************************************************** 00002 * * 00003 * MuViNo - ViTooKi Video Annotation Tool * 00004 * * 00005 * title: MP7View.hpp * 00006 * * 00007 * $Id: MP7View_8hpp-source.html,v 1.1 2004/09/27 07:24:51 mtaschwer Exp $ 00008 * * 00009 * ITEC institute of the University of Klagenfurt (Austria) * 00010 * http://www.itec.uni-klu.ac.at * 00011 * * 00012 * * 00013 * For more information visit the ViTooKi homepage: * 00014 * http://ViTooKi.sourceforge.net * 00015 * vitooki-user@lists.sourceforge.net * 00016 * vitooki-devel@lists.sourceforge.net * 00017 * * 00018 * This file is part of ViTooKi, a free video toolkit. * 00019 * ViTooKi is free software; you can redistribute it and/or * 00020 * modify it under the terms of the GNU General Public License * 00021 * as published by the Free Software Foundation; either version 2 * 00022 * of the License, or (at your option) any later version. * 00023 * * 00024 * This program is distributed in the hope that it will be useful, * 00025 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00026 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 00027 * GNU General Public License for more details. * 00028 * * 00029 * You should have received a copy of the GNU General Public License * 00030 * along with this program; if not, write to the Free Software * 00031 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * 00032 * MA 02111-1307, USA. * 00033 * * 00034 ***********************************************************************/ 00035 00036 #ifndef _MP7VIEW_HPP_ 00037 #define _MP7VIEW_HPP_ 00038 00039 #include "MP7Doc.hpp" 00040 00045 class MP7ListViewItem; 00046 00062 class MP7View 00063 { 00064 public: 00066 virtual ~MP7View() { } 00067 00071 virtual bool isValid() const { return doc != NULL && root != NULL; } 00072 00076 virtual bool equals(const MP7View &view) const 00077 { 00078 return doc == view.doc && root == view.root; 00079 } 00080 00082 virtual void setMP7Doc(MP7Doc *doc) { this->doc = doc; } 00083 00085 MP7ListViewItem *rootItem() const { return root; } 00086 00092 virtual MP7ListViewItem *parent(MP7ListViewItem *root = NULL) const { return NULL; } 00093 00094 /* ---------------------- Pure Virtual Methods ------------------------- */ 00095 00113 virtual MP7ListViewItem *setRoot(MP7ListViewItem *root, bool searchUp = false) = 0; 00114 00120 virtual void setEmpty() = 0; 00121 00127 virtual bool edit() = 0; 00128 00129 protected: 00131 MP7Doc *doc; 00132 00134 MP7ListViewItem *root; 00135 00137 MP7View() { doc = NULL; root = NULL; } 00138 }; 00139 00140 #endif /* _MP7VIEW_HPP_ */
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