1 /* 2 This file is part of GNU APL, a free implementation of the 3 ISO/IEC Standard 13751, "Programming Language APL, Extended" 4 5 Copyright (C) 2018-2019 Dr. Jürgen Sauermann 6 7 This program is free software: you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation, either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. 19 */ 20 21 #ifndef __Quad_PLOT_DEFINED__ 22 #define __Quad_PLOT_DEFINED__ 23 24 #include <math.h> 25 #include <pthread.h> 26 #include <semaphore.h> 27 #include <vector> 28 29 #include "QuadFunction.hh" 30 #include "Value.hh" 31 32 class Plot_window_properties; 33 class Plot_data; 34 35 /// The class implementing ⎕PLOT 36 class Quad_PLOT : public QuadFunction 37 { 38 public: 39 /// Constructor. 40 Quad_PLOT(); 41 42 /// Denstructor. 43 ~Quad_PLOT(); 44 45 static Quad_PLOT * fun; ///< Built-in function. 46 static Quad_PLOT _fun; ///< Built-in function. 47 48 /// a semaphore protecting plot_threads 49 static sem_t * plot_threads_sema; 50 51 /// an array of threads (one per plot window) handling X events from the 52 /// window 53 static std::vector<pthread_t> plot_threads; 54 55 protected: 56 /// overloaded Function::eval_AB() 57 Token eval_AB(Value_P A, Value_P B); 58 59 /// overloaded Function::eval_B() 60 Token eval_B(Value_P B); 61 62 /// print attribute help text 63 void help() const; 64 65 /// plot the data (creating a new plot window in X) 66 Value_P plot_data(Plot_window_properties * w_props, 67 const Plot_data * data); 68 69 /// initialize the data to be plotted 70 Plot_data * setup_data(const Value * B); 71 72 /// whether to print some debug info during plotting 73 int verbosity; 74 }; 75 76 #endif // __Quad_PLOT_DEFINED__ 77