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!
#	User	Rev	Content
1	douglas	22	// Dash Interface
2			//
3			// Douglas Thrift
4			//
5			// $Id$
6
7	douglas	41	#include <algorithm>
8	douglas	33	#include <iomanip>
9	douglas	25	#include <iostream>
10	douglas	33	#include <sstream>
11	douglas	25
12			#include <foreach.hpp>
13			#include <hash.hpp>
14	douglas	41	#include <iconv.hpp>
15	douglas	26	#include <regex.hpp>
16	douglas	39	#include <scopes.hpp>
17	douglas	37	#include <timing.hpp>
18	douglas	25
19	douglas	24	#include <Audacious.hpp>
20			#include <GPS.hpp>
21
22	douglas	33	#include <sys/types.h>
23			#include <sys/sysctl.h>
24			#include <sys/utsname.h>
25
26	douglas	25	#include <sqlite3.h>
27
28	douglas	26	#include "Display.hpp"
29
30			bool debug(false);
31
32	douglas	39	class DashInterface
33	douglas	33	{
34	douglas	41	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
35	douglas	40	enum { Running, Audio };
36			enum { Stopped, Paused, Playing } audio;
37	douglas	41	enum Level { Top, Artist, Album, Song } level;
38	douglas	39	Timing::Time now;
39	douglas	41	IConv::IConv ascii;
40	douglas	39	Display display;
41			Pthreads::ThreadMutex displayLock;
42	douglas	40	Audacious::Audacious audacious;
43	douglas	39	//GPS::GPS gps;
44
45	douglas	41	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	douglas	39	void Mode_(bool change = false)
55	douglas	35	{
56	douglas	39	switch (mode)
57			{
58			case Uname:
59	douglas	40	return Uname_(change);
60			case Music:
61			if (audacious.IsRunning())
62			{
63			int position(audacious.GetPlaylistPosition());
64	douglas	41	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
65	douglas	33
66	douglas	40	display.Set(0, 1, artist.size() > 20 ? artist.erase(20) : artist.append(20 - artist.size(), ' '));
67
68	douglas	41	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
69	douglas	40
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	douglas	39	case English:
91			case Metric:
92			case Nautical:
93	douglas	41	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	douglas	39	case Menu:
99	douglas	41	if (change)
100			level = Top;
101	douglas	39	}
102			}
103	douglas	33
104	douglas	39	void Uname_(bool change = false)
105			{
106			if (!now \|\| change)
107			{
108			utsname os;
109	douglas	33
110	douglas	39	::uname(&os);
111	douglas	33
112	douglas	39	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
113			Pcre::RegEx::Match match(version(os.release));
114	douglas	40	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
115	douglas	33
116	douglas	40	display.Set(0, 1, name.append(20 - name.size(), ' '));
117	douglas	39	}
118	douglas	33
119	douglas	39	int mib[] = { CTL_KERN, KERN_BOOTTIME };
120			timeval boottime;
121			size_t size(sizeof (boottime));
122	douglas	33
123	douglas	39	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
124			{
125			time_t uptime(now - boottime.tv_sec);
126	douglas	33
127	douglas	39	if (uptime > 60)
128			uptime += 30;
129	douglas	33
130	douglas	39	char *when;
131			int days(uptime / 86400);
132	douglas	33
133	douglas	39	uptime %= 86400;
134	douglas	33
135	douglas	39	int hours(uptime / 3600);
136	douglas	33
137	douglas	39	uptime %= 3600;
138	douglas	35
139	douglas	39	int minutes(uptime / 60), seconds(uptime % 60);
140	douglas	35
141	douglas	39	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
142	douglas	35
143	douglas	39	std::string then(when);
144	douglas	35
145	douglas	39	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	douglas	35	else
155	douglas	39	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	douglas	33	}
172
173	douglas	39	void Buttons(Display::KeyActivity activity)
174			{
175			_synchronized (displayLock)
176			if (mode != Menu)
177			{
178			bool change(false);
179	douglas	33
180	douglas	39	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	douglas	41	if (audacious.IsRunning())
192			audacious.PlaylistPrevious();
193	douglas	39
194			goto update;
195			case Display::RightPress:
196	douglas	41	if (audacious.IsRunning())
197			audacious.PlaylistNext();
198	douglas	39
199			goto update;
200			case Display::EnterPress:
201	douglas	41	previous = mode;
202	douglas	39	mode = Menu;
203
204			goto change;
205			case Display::ExitPress:
206	douglas	41	if (audacious.IsRunning())
207			audacious.PlayPause();
208	douglas	39
209			goto update;
210			default:
211			return;
212			}
213
214			change: change = true;
215
216			update: Mode_(change);
217			}
218			else
219	douglas	41	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	douglas	39	}
238
239			public:
240	douglas	41	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	douglas	33	{
242	douglas	39	_synchronized (displayLock)
243			{
244			display.Clear();
245			display.SetBacklight(100);
246			display.Set(2, 0, _B("--:--:-- -- ---"));
247	douglas	33
248	douglas	39	display.Set(Running, Display::Green, 0);
249			display.Set(Running, Display::Red, 100);
250	douglas	40	display.Set(Audio, Display::Green, 0);
251			display.Set(Audio, Display::Red, 100);
252	douglas	33
253	douglas	39	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
254	douglas	35
255	douglas	39	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	douglas	33	}
264
265	douglas	39	void Run()
266			{
267			_forever
268			{
269			_synchronized (displayLock)
270			{
271			now = Timing::GetTimeOfDay();
272	douglas	37
273	douglas	39	if (mode != Menu)
274			{
275			char when[16];
276	douglas	37
277	douglas	39	std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
278	douglas	37
279	douglas	39	display.Set(2, 0, when);
280			}
281
282	douglas	40	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	douglas	39	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	douglas	22	int main(int argc, char *argv[])
335			{
336	douglas	26	std::string device;
337
338	douglas	25	{
339	douglas	26	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
340			Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
341			Pcre::RegEx deviceName(_B("^-device=(.+)$"));
342	douglas	25
343	douglas	26	for (char *arg = argv + 1; arg; ++arg)
344	douglas	25	{
345	douglas	26	Pcre::RegEx::Match match;
346	douglas	25
347	douglas	26	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	douglas	25	}
358			}
359	douglas	26
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	douglas	39	DashInterface interface(device);
370	douglas	26
371	douglas	39	interface.Run();
372	douglas	26	}
373	douglas	25	catch (const std::exception &exception)
374			{
375			std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
376
377			return 1;
378			}
379
380	douglas	22	return 0;
381			}