E* Interpolated Graph Replanner Wed Dec 12 18:55:40 2007
00001 /* 00002 * Copyright (C) 2004 00003 * Swiss Federal Institute of Technology, Lausanne. All rights reserved. 00004 * 00005 * Author: Roland Philippsen <roland dot philippsen at gmx net> 00006 * Autonomous Systems Lab <http://asl.epfl.ch/> 00007 * 00008 * This program is free software; you can redistribute it and/or modify 00009 * it under the terms of the GNU General Public License as published by 00010 * the Free Software Foundation; either version 2 of the License, or 00011 * (at your option) any later version. 00012 * 00013 * This program is distributed in the hope that it will be useful, 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00016 * GNU General Public License for more details. 00017 * 00018 * You should have received a copy of the GNU General Public License 00019 * along with this program; if not, write to the Free Software 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00021 * USA 00022 */ 00023 00024 00025 #ifndef GFX_VIEWPORT_HPP 00026 #define GFX_VIEWPORT_HPP 00027 00028 00029 #include <gfx/Subwindow.hpp> 00030 #include <boost/shared_ptr.hpp> 00031 #include <map> 00032 #include <limits> 00033 00034 00035 namespace gfx { 00036 00037 00038 class Mousehandler; 00039 00040 00042 class Viewport: 00043 public Subwindow 00044 { 00045 public: 00046 typedef enum { NONE, LEFT, MIDDLE, RIGHT } button_t; 00047 00048 00049 Viewport(const std::string & name, 00050 logical_bbox_t realbbox, 00051 logical_bbox_t lbbox, 00052 bool enable = true, 00053 bool preserve_aspect = true, 00054 double remap_thresh = std::numeric_limits<double>::round_error()); 00055 00056 Viewport * Clone(const std::string & newname) const; 00057 00058 00059 virtual void PushProjection() const; 00060 virtual void PopProjection() const; 00061 00062 void Remap(logical_bbox_t realbbox); 00063 logical_point_t PaddedScreen2Real(screen_point_t pixel) const; 00064 00066 void SetMousehandler(button_t button, 00067 boost::shared_ptr<Mousehandler> mousehandler); 00068 00069 00070 protected: 00071 virtual void PostResize(); 00072 virtual void Click(int button, int state, screen_point_t mouse); 00073 virtual void Drag(screen_point_t mouse); 00074 00075 typedef std::map<button_t, boost::shared_ptr<Mousehandler> > handler_t; 00076 handler_t m_handler; 00077 00078 00079 private: 00080 void CalculatePadding(); 00081 00082 00083 const double m_remap_thresh; 00084 logical_bbox_t m_padded_sbbox; 00085 logical_point_t m_padded_ssize; 00086 logical_bbox_t m_rbbox; 00087 logical_point_t m_rsize; 00088 bool m_preserve_aspect; 00089 button_t m_lastdown; 00090 }; 00091 00092 00094 class PassiveViewport: 00095 public Viewport 00096 { 00097 public: 00098 PassiveViewport(const std::string & name, 00099 logical_bbox_t realbbox, 00100 logical_bbox_t lbbox, 00101 bool preserve_aspect, 00102 double remap_thresh); 00103 00104 protected: 00105 virtual void Click(int button, int state, screen_point_t mouse); 00106 }; 00107 00108 } 00109 00110 #endif // GFX_VIEWPORT_HPP