truck/DashInterface/DashInterface.cpp

// Dash Interface
//
// Douglas Thrift
//
// $Id$

#include <algorithm>
#include <iomanip>
#include <iostream>
#include <sstream>

#include <foreach.hpp>
#include <hash.hpp>
#include <iconv.hpp>
#include <regex.hpp>
#include <scopes.hpp>
#include <timing.hpp>

#include <Audacious.hpp>
#include <GPS.hpp>

#include <sys/types.h>
#include <sys/sysctl.h>
#include <sys/utsname.h>

#include <sqlite3.h>

#include "Display.hpp"

bool debug(false);

class DashInterface
{
        enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
        enum { Running, Audio };
        enum { Stopped, Paused, Playing } audio;
        enum Level { Top, Artist, Album, Song } level;
        Timing::Time now;
        IConv::IConv ascii;
        Display display;
        Pthreads::ThreadMutex displayLock;
        Audacious::Audacious audacious;
        //GPS::GPS gps;

        inline std::string Filter(const std::string input)
        {
                std::string output(ascii.Convert(input));

                std::replace(output.begin(), output.end(), '~', char(206));

                return output;
        }

        void Mode_(bool change = false)
        {
                switch (mode)
                {
                case Uname:
                        return Uname_(change);
                case Music:
                        if (audacious.IsRunning())
                        {
                                int position(audacious.GetPlaylistPosition());
                                std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));

                                display.Set(0, 1, artist.size() > 20 ? artist.erase(20) : artist.append(20 - artist.size(), ' '));

                                std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));

                                display.Set(0, 2, title.size() > 20 ? title.erase(20) : title.append(20 - title.size(), ' '));

                                int played(audacious.GetOutputTime() / 1000);
                                int left(audacious.GetPlaylistTime(position) / 1000 - played);
                                char *times;

                                ::asprintf(&times, "%2i:%02i -%2i:%02i", played / 60, played % 60, left / 60, left % 60);

                                display.Set(0, 3, times + std::string(20 - std::strlen(times), ' '));

                                std::free(times);
                        }
                        else
                        {
                                display.Set(0, 1, std::string(20, ' '));
                                display.Set(0, 2, std::string(20, ' '));
                                display.Set(0, 3, _B(" -:-- - -:--       "));
                        }

                        return;
                case English:
                case Metric:
                case Nautical:
                        display.Set(0, 1, _B("STUB: GPS ") + (mode == English ? _B("English   ") : mode == Metric ? _B("Metric    ") : _B("Nautical  ")));
                        display.Set(0, 2, std::string(20, ' '));
                        display.Set(0, 3, std::string(20, ' '));

                        return;
                case Menu:
                        if (change)
                                level = Top;
                }
        }

        void Uname_(bool change = false)
        {
                if (!now || change)
                {
                        utsname os;

                        ::uname(&os);

                        static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z]*(-p\\d+)?.*$"));
                        Pcre::RegEx::Match match(version(os.release));
                        std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);

                        display.Set(0, 1, name.append(20 - name.size(), ' '));
                }

                int mib[] = { CTL_KERN, KERN_BOOTTIME };
                timeval boottime;
                size_t size(sizeof (boottime));

                if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
                {
                        time_t uptime(now - boottime.tv_sec);

                        if (uptime > 60)
                                uptime += 30;

                        char *when;
                        int days(uptime / 86400);

                        uptime %= 86400;

                        int hours(uptime / 3600);

                        uptime %= 3600;

                        int minutes(uptime / 60), seconds(uptime % 60);

                        ::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);

                        std::string then(when);

                        then.append(17 - std::strlen(when), ' ');

                        std::free(when);

                        if (change)
                                display.Set(0, 2, _B("up ") + then);
                        else
                                display.Set(3, 2, then);
                }
                else
                        display.Set(0, 2, _B("up -+--:--:--       "));

                double averages[3];

                if (::getloadavg(averages, 3) == -1 || !now)
                        display.Set(0, 3, _B("-.--, -.--, -.--    "));
                else
                {
                        char *load;

                        ::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);

                        display.Set(0, 3, load + std::string(20 - std::strlen(load), ' '));

                        std::free(load);
                }
        }

        void Buttons(Display::KeyActivity activity)
        {
                _synchronized (displayLock)
                        if (mode != Menu)
                        {
                                bool change(false);

                                switch (activity)
                                {
                                case Display::UpPress:
                                        --mode;

                                        goto change;
                                case Display::DownPress:
                                        ++mode;

                                        goto change;
                                case Display::LeftPress:
                                        if (audacious.IsRunning())
                                                audacious.PlaylistPrevious();

                                        goto update;
                                case Display::RightPress:
                                        if (audacious.IsRunning())
                                                audacious.PlaylistNext();

                                        goto update;
                                case Display::EnterPress:
                                        previous = mode;
                                        mode = Menu;

                                        goto change;
                                case Display::ExitPress:
                                        if (audacious.IsRunning())
                                                audacious.PlayPause();

                                        goto update;
                                default:
                                        return;
                                }

change:                 change = true;

update:                 Mode_(change);
                        }
                        else
                                switch (activity)
                                {
                                case Display::UpPress:
                                case Display::DownPress:
                                case Display::LeftPress:
                                case Display::RightPress:
                                case Display::EnterPress:
                                        return;
                                case Display::ExitPress:
                                        mode = previous;

                                        display.Set(0, 0, _B("  "));
                                        display.Set(18, 0, _B("  "));

                                        Mode_(true);
                                default:
                                        return;
                                }
        }

public:
        DashInterface(const std::string &device) : mode(Uname), audio(Stopped), ascii(_B("ASCII//TRANSLIT//IGNORE"), _B("UTF-8")), display(device, reinterpret_cast<Display::Callback>(::Buttons), this)
        {
                _synchronized (displayLock)
                {
                        display.Clear();
                        display.SetBacklight(100);
                        display.Set(2, 0, _B("--:--:-- -- ---"));

                        display.Set(Running, Display::Green, 0);
                        display.Set(Running, Display::Red, 100);
                        display.Set(Audio, Display::Green, 0);
                        display.Set(Audio, Display::Red, 100);

                        uint8_t mask(Display::Up | Display::Enter | Display::Cancel | Display::Left | Display::Right | Display::Down);

                        display.KeyReporting(mask, mask);

                        Uname_();

                        display.Store();
                        display.Set(Running, Display::Green, 100);
                        display.Set(Running, Display::Red, 0);
                }
        }

        void Run()
        {
                _forever
                {
                        _synchronized (displayLock)
                        {
                                now = Timing::GetTimeOfDay();

                                if (mode != Menu)
                                {
                                        char when[16];

                                        std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));

                                        display.Set(2, 0, when);
                                }

                                if (audacious.IsRunning() && audacious.IsPlaying())
                                        if (audacious.IsPaused())
                                        {
                                                if (audio != Paused)
                                                {
                                                        display.Set(Audio, Display::Green, 100);
                                                        display.Set(Audio, Display::Red, 100);

                                                        audio = Paused;
                                                }
                                        }
                                        else
                                        {
                                                if (audio != Playing)
                                                {
                                                        display.Set(Audio, Display::Green, 100);
                                                        display.Set(Audio, Display::Red, 0);

                                                        audio = Playing;
                                                }
                                        }
                                else if (audio != Stopped)
                                {
                                        display.Set(Audio, Display::Green, 0);
                                        display.Set(Audio, Display::Red, 100);

                                        audio = Stopped;
                                }

                                Mode_();
                        }

                        Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
                }
        }

        friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
        {
                interface->Buttons(activity);
        }

        inline friend Mode &operator ++(Mode &mode)
        {
                return mode = Mode((mode + 1) % Menu);
        }

        inline friend Mode &operator --(Mode &mode)
        {
                return mode = Mode((Menu + mode - 1) % Menu);
        }
};

int main(int argc, char *argv[])
{
        std::string device;

        {
                Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
                Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
                Pcre::RegEx deviceName(_B("^-device=(.+)$"));

                for (char **arg = argv + 1; *arg; ++arg)
                {
                        Pcre::RegEx::Match match;

                        if (*arg == _B("-debug"))
                                debug = true;
                        else if (match = devicePath(*arg))
                                device = match[1];
                        else if (match = deviceNumber(*arg))
                                device = _B("/dev/cuaU") + match[1];
                        else if (match = deviceName(*arg))
                                device = _B("/dev/") + match[1];
                        else
                                goto usage;
                }
        }

        if (device.empty())
        {
usage:  std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;

                return 2;
        }

        try
        {
                DashInterface interface(device);

                interface.Run();
        }
        catch (const std::exception &exception)
        {
                std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;

                return 1;
        }

        return 0;
}
Revision:	41
Committed:	2008-03-06T02:41:40-08:00 (17 years, 3 months ago) by douglas
File size:	8032 byte(s)
Log Message:	Moar progress!
#	Content
1	// Dash Interface
2	//
3	// Douglas Thrift
4	//
5	// $Id$
6
7	#include <algorithm>
8	#include <iomanip>
9	#include <iostream>
10	#include <sstream>
11
12	#include <foreach.hpp>
13	#include <hash.hpp>
14	#include <iconv.hpp>
15	#include <regex.hpp>
16	#include <scopes.hpp>
17	#include <timing.hpp>
18
19	#include <Audacious.hpp>
20	#include <GPS.hpp>
21
22	#include <sys/types.h>
23	#include <sys/sysctl.h>
24	#include <sys/utsname.h>
25
26	#include <sqlite3.h>
27
28	#include "Display.hpp"
29
30	bool debug(false);
31
32	class DashInterface
33	{
34	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
35	enum { Running, Audio };
36	enum { Stopped, Paused, Playing } audio;
37	enum Level { Top, Artist, Album, Song } level;
38	Timing::Time now;
39	IConv::IConv ascii;
40	Display display;
41	Pthreads::ThreadMutex displayLock;
42	Audacious::Audacious audacious;
43	//GPS::GPS gps;
44
45	inline std::string Filter(const std::string input)
46	{
47	std::string output(ascii.Convert(input));
48
49	std::replace(output.begin(), output.end(), '~', char(206));
50
51	return output;
52	}
53
54	void Mode_(bool change = false)
55	{
56	switch (mode)
57	{
58	case Uname:
59	return Uname_(change);
60	case Music:
61	if (audacious.IsRunning())
62	{
63	int position(audacious.GetPlaylistPosition());
64	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
65
66	display.Set(0, 1, artist.size() > 20 ? artist.erase(20) : artist.append(20 - artist.size(), ' '));
67
68	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
69
70	display.Set(0, 2, title.size() > 20 ? title.erase(20) : title.append(20 - title.size(), ' '));
71
72	int played(audacious.GetOutputTime() / 1000);
73	int left(audacious.GetPlaylistTime(position) / 1000 - played);
74	char *times;
75
76	::asprintf(&times, "%2i:%02i -%2i:%02i", played / 60, played % 60, left / 60, left % 60);
77
78	display.Set(0, 3, times + std::string(20 - std::strlen(times), ' '));
79
80	std::free(times);
81	}
82	else
83	{
84	display.Set(0, 1, std::string(20, ' '));
85	display.Set(0, 2, std::string(20, ' '));
86	display.Set(0, 3, _B(" -:-- - -:-- "));
87	}
88
89	return;
90	case English:
91	case Metric:
92	case Nautical:
93	display.Set(0, 1, _B("STUB: GPS ") + (mode == English ? _B("English ") : mode == Metric ? _B("Metric ") : _B("Nautical ")));
94	display.Set(0, 2, std::string(20, ' '));
95	display.Set(0, 3, std::string(20, ' '));
96
97	return;
98	case Menu:
99	if (change)
100	level = Top;
101	}
102	}
103
104	void Uname_(bool change = false)
105	{
106	if (!now \|\| change)
107	{
108	utsname os;
109
110	::uname(&os);
111
112	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
113	Pcre::RegEx::Match match(version(os.release));
114	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
115
116	display.Set(0, 1, name.append(20 - name.size(), ' '));
117	}
118
119	int mib[] = { CTL_KERN, KERN_BOOTTIME };
120	timeval boottime;
121	size_t size(sizeof (boottime));
122
123	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
124	{
125	time_t uptime(now - boottime.tv_sec);
126
127	if (uptime > 60)
128	uptime += 30;
129
130	char *when;
131	int days(uptime / 86400);
132
133	uptime %= 86400;
134
135	int hours(uptime / 3600);
136
137	uptime %= 3600;
138
139	int minutes(uptime / 60), seconds(uptime % 60);
140
141	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
142
143	std::string then(when);
144
145	then.append(17 - std::strlen(when), ' ');
146
147	std::free(when);
148
149	if (change)
150	display.Set(0, 2, _B("up ") + then);
151	else
152	display.Set(3, 2, then);
153	}
154	else
155	display.Set(0, 2, _B("up -+--:--:-- "));
156
157	double averages[3];
158
159	if (::getloadavg(averages, 3) == -1 \|\| !now)
160	display.Set(0, 3, _B("-.--, -.--, -.-- "));
161	else
162	{
163	char *load;
164
165	::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);
166
167	display.Set(0, 3, load + std::string(20 - std::strlen(load), ' '));
168
169	std::free(load);
170	}
171	}
172
173	void Buttons(Display::KeyActivity activity)
174	{
175	_synchronized (displayLock)
176	if (mode != Menu)
177	{
178	bool change(false);
179
180	switch (activity)
181	{
182	case Display::UpPress:
183	--mode;
184
185	goto change;
186	case Display::DownPress:
187	++mode;
188
189	goto change;
190	case Display::LeftPress:
191	if (audacious.IsRunning())
192	audacious.PlaylistPrevious();
193
194	goto update;
195	case Display::RightPress:
196	if (audacious.IsRunning())
197	audacious.PlaylistNext();
198
199	goto update;
200	case Display::EnterPress:
201	previous = mode;
202	mode = Menu;
203
204	goto change;
205	case Display::ExitPress:
206	if (audacious.IsRunning())
207	audacious.PlayPause();
208
209	goto update;
210	default:
211	return;
212	}
213
214	change: change = true;
215
216	update: Mode_(change);
217	}
218	else
219	switch (activity)
220	{
221	case Display::UpPress:
222	case Display::DownPress:
223	case Display::LeftPress:
224	case Display::RightPress:
225	case Display::EnterPress:
226	return;
227	case Display::ExitPress:
228	mode = previous;
229
230	display.Set(0, 0, _B(" "));
231	display.Set(18, 0, _B(" "));
232
233	Mode_(true);
234	default:
235	return;
236	}
237	}
238
239	public:
240	DashInterface(const std::string &device) : mode(Uname), audio(Stopped), ascii(_B("ASCII//TRANSLIT//IGNORE"), _B("UTF-8")), display(device, reinterpret_cast<Display::Callback>(::Buttons), this)
241	{
242	_synchronized (displayLock)
243	{
244	display.Clear();
245	display.SetBacklight(100);
246	display.Set(2, 0, _B("--:--:-- -- ---"));
247
248	display.Set(Running, Display::Green, 0);
249	display.Set(Running, Display::Red, 100);
250	display.Set(Audio, Display::Green, 0);
251	display.Set(Audio, Display::Red, 100);
252
253	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
254
255	display.KeyReporting(mask, mask);
256
257	Uname_();
258
259	display.Store();
260	display.Set(Running, Display::Green, 100);
261	display.Set(Running, Display::Red, 0);
262	}
263	}
264
265	void Run()
266	{
267	_forever
268	{
269	_synchronized (displayLock)
270	{
271	now = Timing::GetTimeOfDay();
272
273	if (mode != Menu)
274	{
275	char when[16];
276
277	std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
278
279	display.Set(2, 0, when);
280	}
281
282	if (audacious.IsRunning() && audacious.IsPlaying())
283	if (audacious.IsPaused())
284	{
285	if (audio != Paused)
286	{
287	display.Set(Audio, Display::Green, 100);
288	display.Set(Audio, Display::Red, 100);
289
290	audio = Paused;
291	}
292	}
293	else
294	{
295	if (audio != Playing)
296	{
297	display.Set(Audio, Display::Green, 100);
298	display.Set(Audio, Display::Red, 0);
299
300	audio = Playing;
301	}
302	}
303	else if (audio != Stopped)
304	{
305	display.Set(Audio, Display::Green, 0);
306	display.Set(Audio, Display::Red, 100);
307
308	audio = Stopped;
309	}
310
311	Mode_();
312	}
313
314	Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
315	}
316	}
317
318	friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
319	{
320	interface->Buttons(activity);
321	}
322
323	inline friend Mode &operator ++(Mode &mode)
324	{
325	return mode = Mode((mode + 1) % Menu);
326	}
327
328	inline friend Mode &operator --(Mode &mode)
329	{
330	return mode = Mode((Menu + mode - 1) % Menu);
331	}
332	};
333
334	int main(int argc, char *argv[])
335	{
336	std::string device;
337
338	{
339	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
340	Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
341	Pcre::RegEx deviceName(_B("^-device=(.+)$"));
342
343	for (char *arg = argv + 1; arg; ++arg)
344	{
345	Pcre::RegEx::Match match;
346
347	if (*arg == _B("-debug"))
348	debug = true;
349	else if (match = devicePath(*arg))
350	device = match[1];
351	else if (match = deviceNumber(*arg))
352	device = _B("/dev/cuaU") + match[1];
353	else if (match = deviceName(*arg))
354	device = _B("/dev/") + match[1];
355	else
356	goto usage;
357	}
358	}
359
360	if (device.empty())
361	{
362	usage: std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;
363
364	return 2;
365	}
366
367	try
368	{
369	DashInterface interface(device);
370
371	interface.Run();
372	}
373	catch (const std::exception &exception)
374	{
375	std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
376
377	return 1;
378	}
379
380	return 0;
381	}