Tie the "always zoom to fit" setting in with the settings mgmt
[pulseview.git] / main.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, see <http://www.gnu.org/licenses/>.
18  */
19
20 #ifdef ENABLE_DECODE
21 #include <libsigrokdecode/libsigrokdecode.h> /* First, so we avoid a _POSIX_C_SOURCE warning. */
22 #endif
23
24 #include <stdint.h>
25 #include <libsigrokcxx/libsigrokcxx.hpp>
26
27 #include <getopt.h>
28
29 #include <QDebug>
30
31 #ifdef ENABLE_SIGNALS
32 #include "signalhandler.hpp"
33 #endif
34
35 #include "pv/application.hpp"
36 #include "pv/devicemanager.hpp"
37 #include "pv/mainwindow.hpp"
38 #ifdef ANDROID
39 #include <libsigrokandroidutils/libsigrokandroidutils.h>
40 #include "android/assetreader.hpp"
41 #include "android/loghandler.hpp"
42 #endif
43
44 #include "config.h"
45
46 #ifdef _WIN32
47 #include <QtPlugin>
48 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin)
49 Q_IMPORT_PLUGIN(QSvgPlugin)
50 #endif
51
52 void usage()
53 {
54         fprintf(stdout,
55                 "Usage:\n"
56                 "  %s [OPTION…] — %s\n"
57                 "\n"
58                 "Help Options:\n"
59                 "  -h, -?, --help                  Show help option\n"
60                 "\n"
61                 "Application Options:\n"
62                 "  -V, --version                   Show release version\n"
63                 "  -l, --loglevel                  Set libsigrok/libsigrokdecode loglevel\n"
64                 "  -i, --input-file                Load input from file\n"
65                 "  -I, --input-format              Input format\n"
66                 "\n", PV_BIN_NAME, PV_DESCRIPTION);
67 }
68
69 int main(int argc, char *argv[])
70 {
71         int ret = 0;
72         std::shared_ptr<sigrok::Context> context;
73         std::string open_file, open_file_format;
74
75         Application a(argc, argv);
76
77 #ifdef ANDROID
78         srau_init_environment();
79         pv::AndroidLogHandler::install_callbacks();
80         pv::AndroidAssetReader asset_reader;
81 #endif
82
83         // Parse arguments
84         while (1) {
85                 static const struct option long_options[] = {
86                         {"help", no_argument, nullptr, 'h'},
87                         {"version", no_argument, nullptr, 'V'},
88                         {"loglevel", required_argument, nullptr, 'l'},
89                         {"input-file", required_argument, nullptr, 'i'},
90                         {"input-format", required_argument, nullptr, 'I'},
91                         {nullptr, 0, nullptr, 0}
92                 };
93
94                 const int c = getopt_long(argc, argv,
95                         "l:Vh?i:I:", long_options, nullptr);
96                 if (c == -1)
97                         break;
98
99                 switch (c) {
100                 case 'h':
101                 case '?':
102                         usage();
103                         return 0;
104
105                 case 'V':
106                         // Print version info
107                         fprintf(stdout, "%s %s\n", PV_TITLE, PV_VERSION_STRING);
108                         return 0;
109
110                 case 'l':
111                 {
112                         const int loglevel = atoi(optarg);
113                         context->set_log_level(sigrok::LogLevel::get(loglevel));
114
115 #ifdef ENABLE_DECODE
116                         srd_log_loglevel_set(loglevel);
117 #endif
118
119                         break;
120                 }
121
122                 case 'i':
123                         open_file = optarg;
124                         break;
125
126                 case 'I':
127                         open_file_format = optarg;
128                         break;
129                 }
130         }
131
132         if (argc - optind > 1) {
133                 fprintf(stderr, "Only one file can be opened.\n");
134                 return 1;
135         } else if (argc - optind == 1) {
136                 open_file = argv[argc - 1];
137         }
138
139         // Initialise libsigrok
140         context = sigrok::Context::create();
141 #ifdef ANDROID
142         context->set_resource_reader(&asset_reader);
143 #endif
144         do {
145
146 #ifdef ENABLE_DECODE
147                 // Initialise libsigrokdecode
148                 if (srd_init(nullptr) != SRD_OK) {
149                         qDebug() << "ERROR: libsigrokdecode init failed.";
150                         break;
151                 }
152
153                 // Load the protocol decoders
154                 srd_decoder_load_all();
155 #endif
156
157                 try {
158                         // Create the device manager, initialise the drivers
159                         pv::DeviceManager device_manager(context);
160
161                         // Initialise the main window
162                         pv::MainWindow w(device_manager,
163                                 open_file, open_file_format);
164                         w.show();
165
166 #ifdef ENABLE_SIGNALS
167                         if (SignalHandler::prepare_signals()) {
168                                 SignalHandler *const handler =
169                                         new SignalHandler(&w);
170                                 QObject::connect(handler,
171                                         SIGNAL(int_received()),
172                                         &w, SLOT(close()));
173                                 QObject::connect(handler,
174                                         SIGNAL(term_received()),
175                                         &w, SLOT(close()));
176                         } else {
177                                 qWarning() <<
178                                         "Could not prepare signal handler.";
179                         }
180 #endif
181
182                         // Run the application
183                         ret = a.exec();
184
185                 } catch (std::exception e) {
186                         qDebug() << e.what();
187                 }
188
189 #ifdef ENABLE_DECODE
190                 // Destroy libsigrokdecode
191                 srd_exit();
192 #endif
193
194         } while (0);
195
196         return ret;
197 }