1 /* -*- c++ -*- */
2 /*
3  * Copyright 2008,2009,2011,2012,2014,2018 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
7  * GNU Radio 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, or (at your option)
10  * any later version.
11  *
12  * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
19  * the Free Software Foundation, Inc., 51 Franklin Street,
20  * Boston, MA 02110-1301, USA.
21  */
22 
23 #ifndef INCLUDED_QTGUI_SINK_C_IMPL_H
24 #define INCLUDED_QTGUI_SINK_C_IMPL_H
25 
26 #include <gnuradio/qtgui/sink_c.h>
27 
28 #include <gnuradio/fft/fft.h>
29 #include <gnuradio/filter/firdes.h>
30 #include <gnuradio/high_res_timer.h>
31 #include <gnuradio/qtgui/SpectrumGUIClass.h>
32 
33 namespace gr {
34 namespace qtgui {
35 
36 class QTGUI_API sink_c_impl : public sink_c
37 {
38 private:
39     void forecast(int noutput_items, gr_vector_int& ninput_items_required);
40 
41     void initialize();
42 
43     int d_fftsize;
44     filter::firdes::win_type d_wintype;
45     std::vector<float> d_window;
46     double d_center_freq;
47     double d_bandwidth;
48     std::string d_name;
49     gr::high_res_timer_type d_last_update;
50     bool d_update_active;
51 
52     const pmt::pmt_t d_port;
53 
54     bool d_shift;
55     fft::fft_complex* d_fft;
56 
57     int d_index;
58     gr_complex* d_residbuf;
59     float* d_magbuf;
60 
61     bool d_plotfreq, d_plotwaterfall, d_plottime, d_plotconst;
62 
63     gr::high_res_timer_type d_update_time;
64 
65     int d_argc;
66     char* d_argv;
67     QWidget* d_parent;
68     SpectrumGUIClass* d_main_gui;
69 
70     void windowreset();
71     void buildwindow();
72     void fftresize();
73     void check_clicked();
74     void fft(float* data_out, const gr_complex* data_in, int size);
75 
76     // Handles message input port for setting new center frequency.
77     // The message is a PMT pair (intern('freq'), double(frequency)).
78     void handle_set_freq(pmt::pmt_t msg);
79 
80 public:
81     sink_c_impl(int fftsize,
82                 int wintype,
83                 double fc,
84                 double bw,
85                 const std::string& name,
86                 bool plotfreq,
87                 bool plotwaterfall,
88                 bool plottime,
89                 bool plotconst,
90                 QWidget* parent);
91     ~sink_c_impl();
92 
93     bool check_topology(int ninputs, int noutputs);
94 
95     void exec_();
96     QWidget* qwidget();
97 
98 #ifdef ENABLE_PYTHON
99     PyObject* pyqwidget();
100 #else
101     void* pyqwidget();
102 #endif
103 
104     void set_fft_size(const int fftsize);
105     int fft_size() const;
106 
107     void set_frequency_range(const double centerfreq, const double bandwidth);
108     void set_fft_power_db(double min, double max);
109     void enable_rf_freq(bool en);
110 
111     // void set_time_domain_axis(double min, double max);
112     // void set_constellation_axis(double xmin, double xmax,
113     //                            double ymin, double ymax);
114     // void set_constellation_pen_size(int size);
115 
116     void set_update_time(double t);
117 
118     int general_work(int noutput_items,
119                      gr_vector_int& ninput_items,
120                      gr_vector_const_void_star& input_items,
121                      gr_vector_void_star& output_items);
122 };
123 
124 } /* namespace qtgui */
125 } /* namespace gr */
126 
127 #endif /* INCLUDED_QTGUI_SINK_C_IMPL_H */
128