00001 /*!@file Devices/KeyBoard.H a simple keyboard interface */ 00002 00003 // //////////////////////////////////////////////////////////////////// // 00004 // The iLab Neuromorphic Vision C++ Toolkit - Copyright (C) 2000-2003 // 00005 // by the University of Southern California (USC) and the iLab at USC. // 00006 // See http://iLab.usc.edu for information about this project. // 00007 // //////////////////////////////////////////////////////////////////// // 00008 // Major portions of the iLab Neuromorphic Vision Toolkit are protected // 00009 // under the U.S. patent ``Computation of Intrinsic Perceptual Saliency // 00010 // in Visual Environments, and Applications'' by Christof Koch and // 00011 // Laurent Itti, California Institute of Technology, 2001 (patent // 00012 // pending; application number 09/912,225 filed July 23, 2001; see // 00013 // http://pair.uspto.gov/cgi-bin/final/home.pl for current status). // 00014 // //////////////////////////////////////////////////////////////////// // 00015 // This file is part of the iLab Neuromorphic Vision C++ Toolkit. // 00016 // // 00017 // The iLab Neuromorphic Vision C++ Toolkit is free software; you can // 00018 // redistribute it and/or modify it under the terms of the GNU General // 00019 // Public License as published by the Free Software Foundation; either // 00020 // version 2 of the License, or (at your option) any later version. // 00021 // // 00022 // The iLab Neuromorphic Vision C++ Toolkit is distributed in the hope // 00023 // that it will be useful, but WITHOUT ANY WARRANTY; without even the // 00024 // implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR // 00025 // PURPOSE. See the GNU General Public License for more details. // 00026 // // 00027 // You should have received a copy of the GNU General Public License // 00028 // along with the iLab Neuromorphic Vision C++ Toolkit; if not, write // 00029 // to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, // 00030 // Boston, MA 02111-1307 USA. // 00031 // //////////////////////////////////////////////////////////////////// // 00032 // 00033 // Primary maintainer for this file: Naila Rizvi <nrizvi@usc.edu> 00034 // $HeadURL: svn://isvn.usc.edu/software/invt/trunk/saliency/src/Devices/KeyBoard.H $ 00035 // $Id: KeyBoard.H 13695 2010-07-25 18:19:38Z dberg $ 00036 // 00037 00038 #ifndef KEYBOARD_H_DEFINED 00039 #define KEYBOARD_H_DEFINED 00040 00041 #include <termios.h> 00042 00043 //! Possible keys returned by our access methods 00044 enum KeyBoardKey { 00045 KBD_NONE, KBD_KEY1, KBD_KEY2, KBD_KEY3, KBD_KEY4, KBD_KEY5, KBD_OTHER 00046 }; 00047 00048 00049 //! Simple interface to a keyboard 00050 /*! This class provides basic methods to check whether a key was 00051 pressed on the keyboard. It is used by the Beobot, which has a small 00052 keypad with just 5 keys. */ 00053 class KeyBoard 00054 { 00055 public: 00056 //! Constructor 00057 KeyBoard(); 00058 00059 //! Destructor 00060 ~KeyBoard(); 00061 00062 //! Get a key from the keyboard 00063 /*! @param block if true, this function will block until a key is 00064 pressed. Otherwise, it will return the key pressed if any, or 00065 KBD_NONE if no key was pressed. */ 00066 KeyBoardKey getKey(const bool block); 00067 00068 //! get the key from the keybard and return as an int 00069 /*! @param block if true, this function will block until a key is 00070 pressed. */ 00071 int getKeyAsChar(const bool block); 00072 00073 private: 00074 // Enable/disables blocking mode 00075 void setBlocking(const bool block); 00076 00077 // convert from char to KeyBoardKey 00078 KeyBoardKey fromChar(const char c) const; 00079 00080 struct termios stored_settings; 00081 bool blocking; // keep track of whether we are blocking or not 00082 }; 00083 00084 #endif 00085 00086 // ###################################################################### 00087 /* So things look consistent in everyone's emacs... */ 00088 /* Local Variables: */ 00089 /* indent-tabs-mode: nil */ 00090 /* End: */
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