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 "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(), '~', '\xce');

                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)));

                                artist.resize(20, ' ');
                                display.Set(0, 1, artist);

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

                                title.resize(20, ' ');
                                display.Set(0, 2, title);

                                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);

                                std::string times_(times);

                                std::free(times);

                                times_.resize(20, ' ');
                                display.Set(0, 3, 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]);

                        name.resize(20, ' ');
                        display.Set(0, 1, name);
                }

                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);

                        std::free(when);

                        then.resize(17, ' ');

                        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]);

                        std::string load_(load);

                        std::free(load);

                        load_.resize(20, ' ');
                        display.Set(0, 3, 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:	42
Committed:	2008-03-06T13:04:20-08:00 (17 years, 3 months ago) by douglas
File size:	7926 byte(s)
Log Message:	Beginnings of a menu?
#	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	26	#include "Display.hpp"
27
28			bool debug(false);
29
30	douglas	39	class DashInterface
31	douglas	33	{
32	douglas	41	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
33	douglas	40	enum { Running, Audio };
34			enum { Stopped, Paused, Playing } audio;
35	douglas	41	enum Level { Top, Artist, Album, Song } level;
36	douglas	39	Timing::Time now;
37	douglas	41	IConv::IConv ascii;
38	douglas	39	Display display;
39			Pthreads::ThreadMutex displayLock;
40	douglas	40	Audacious::Audacious audacious;
41	douglas	39	//GPS::GPS gps;
42
43	douglas	41	inline std::string Filter(const std::string input)
44			{
45			std::string output(ascii.Convert(input));
46
47	douglas	42	std::replace(output.begin(), output.end(), '~', '\xce');
48	douglas	41
49			return output;
50			}
51
52	douglas	39	void Mode_(bool change = false)
53	douglas	35	{
54	douglas	39	switch (mode)
55			{
56			case Uname:
57	douglas	40	return Uname_(change);
58			case Music:
59			if (audacious.IsRunning())
60			{
61			int position(audacious.GetPlaylistPosition());
62	douglas	41	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
63	douglas	33
64	douglas	42	artist.resize(20, ' ');
65			display.Set(0, 1, artist);
66	douglas	40
67	douglas	41	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
68	douglas	40
69	douglas	42	title.resize(20, ' ');
70			display.Set(0, 2, title);
71	douglas	40
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	douglas	42	std::string times_(times);
79	douglas	40
80			std::free(times);
81	douglas	42
82			times_.resize(20, ' ');
83			display.Set(0, 3, times_);
84	douglas	40	}
85			else
86			{
87			display.Set(0, 1, std::string(20, ' '));
88			display.Set(0, 2, std::string(20, ' '));
89			display.Set(0, 3, _B(" -:-- - -:-- "));
90			}
91
92			return;
93	douglas	39	case English:
94			case Metric:
95			case Nautical:
96	douglas	41	display.Set(0, 1, _B("STUB: GPS ") + (mode == English ? _B("English ") : mode == Metric ? _B("Metric ") : _B("Nautical ")));
97			display.Set(0, 2, std::string(20, ' '));
98			display.Set(0, 3, std::string(20, ' '));
99
100			return;
101	douglas	39	case Menu:
102	douglas	41	if (change)
103			level = Top;
104	douglas	39	}
105			}
106	douglas	33
107	douglas	39	void Uname_(bool change = false)
108			{
109			if (!now \|\| change)
110			{
111			utsname os;
112	douglas	33
113	douglas	39	::uname(&os);
114	douglas	33
115	douglas	39	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
116			Pcre::RegEx::Match match(version(os.release));
117	douglas	40	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
118	douglas	33
119	douglas	42	name.resize(20, ' ');
120			display.Set(0, 1, name);
121	douglas	39	}
122	douglas	33
123	douglas	39	int mib[] = { CTL_KERN, KERN_BOOTTIME };
124			timeval boottime;
125			size_t size(sizeof (boottime));
126	douglas	33
127	douglas	39	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
128			{
129			time_t uptime(now - boottime.tv_sec);
130	douglas	33
131	douglas	39	if (uptime > 60)
132			uptime += 30;
133	douglas	33
134	douglas	39	char *when;
135			int days(uptime / 86400);
136	douglas	33
137	douglas	39	uptime %= 86400;
138	douglas	33
139	douglas	39	int hours(uptime / 3600);
140	douglas	33
141	douglas	39	uptime %= 3600;
142	douglas	35
143	douglas	39	int minutes(uptime / 60), seconds(uptime % 60);
144	douglas	35
145	douglas	39	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
146	douglas	35
147	douglas	39	std::string then(when);
148	douglas	35
149	douglas	39	std::free(when);
150
151	douglas	42	then.resize(17, ' ');
152
153	douglas	39	if (change)
154			display.Set(0, 2, _B("up ") + then);
155			else
156			display.Set(3, 2, then);
157			}
158	douglas	35	else
159	douglas	39	display.Set(0, 2, _B("up -+--:--:-- "));
160
161			double averages[3];
162
163			if (::getloadavg(averages, 3) == -1 \|\| !now)
164			display.Set(0, 3, _B("-.--, -.--, -.-- "));
165			else
166			{
167			char *load;
168
169			::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);
170
171	douglas	42	std::string load_(load);
172	douglas	39
173			std::free(load);
174	douglas	42
175			load_.resize(20, ' ');
176			display.Set(0, 3, load_);
177	douglas	39	}
178	douglas	33	}
179
180	douglas	39	void Buttons(Display::KeyActivity activity)
181			{
182			_synchronized (displayLock)
183			if (mode != Menu)
184			{
185			bool change(false);
186	douglas	33
187	douglas	39	switch (activity)
188			{
189			case Display::UpPress:
190			--mode;
191
192			goto change;
193			case Display::DownPress:
194			++mode;
195
196			goto change;
197			case Display::LeftPress:
198	douglas	41	if (audacious.IsRunning())
199			audacious.PlaylistPrevious();
200	douglas	39
201			goto update;
202			case Display::RightPress:
203	douglas	41	if (audacious.IsRunning())
204			audacious.PlaylistNext();
205	douglas	39
206			goto update;
207			case Display::EnterPress:
208	douglas	41	previous = mode;
209	douglas	39	mode = Menu;
210
211			goto change;
212			case Display::ExitPress:
213	douglas	41	if (audacious.IsRunning())
214			audacious.PlayPause();
215	douglas	39
216			goto update;
217			default:
218			return;
219			}
220
221			change: change = true;
222
223			update: Mode_(change);
224			}
225			else
226	douglas	41	switch (activity)
227			{
228			case Display::UpPress:
229			case Display::DownPress:
230			case Display::LeftPress:
231			case Display::RightPress:
232			case Display::EnterPress:
233			return;
234			case Display::ExitPress:
235			mode = previous;
236
237			display.Set(0, 0, _B(" "));
238			display.Set(18, 0, _B(" "));
239
240			Mode_(true);
241			default:
242			return;
243			}
244	douglas	39	}
245
246			public:
247	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)
248	douglas	33	{
249	douglas	39	_synchronized (displayLock)
250			{
251			display.Clear();
252			display.SetBacklight(100);
253			display.Set(2, 0, _B("--:--:-- -- ---"));
254	douglas	33
255	douglas	39	display.Set(Running, Display::Green, 0);
256			display.Set(Running, Display::Red, 100);
257	douglas	40	display.Set(Audio, Display::Green, 0);
258			display.Set(Audio, Display::Red, 100);
259	douglas	33
260	douglas	39	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
261	douglas	35
262	douglas	39	display.KeyReporting(mask, mask);
263
264			Uname_();
265
266			display.Store();
267			display.Set(Running, Display::Green, 100);
268			display.Set(Running, Display::Red, 0);
269			}
270	douglas	33	}
271
272	douglas	39	void Run()
273			{
274			_forever
275			{
276			_synchronized (displayLock)
277			{
278			now = Timing::GetTimeOfDay();
279	douglas	37
280	douglas	39	if (mode != Menu)
281			{
282			char when[16];
283	douglas	37
284	douglas	39	std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
285	douglas	37
286	douglas	39	display.Set(2, 0, when);
287			}
288
289	douglas	40	if (audacious.IsRunning() && audacious.IsPlaying())
290			if (audacious.IsPaused())
291			{
292			if (audio != Paused)
293			{
294			display.Set(Audio, Display::Green, 100);
295			display.Set(Audio, Display::Red, 100);
296
297			audio = Paused;
298			}
299			}
300			else
301			{
302			if (audio != Playing)
303			{
304			display.Set(Audio, Display::Green, 100);
305			display.Set(Audio, Display::Red, 0);
306
307			audio = Playing;
308			}
309			}
310			else if (audio != Stopped)
311			{
312			display.Set(Audio, Display::Green, 0);
313			display.Set(Audio, Display::Red, 100);
314
315			audio = Stopped;
316			}
317
318	douglas	39	Mode_();
319			}
320
321			Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
322			}
323			}
324
325			friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
326			{
327			interface->Buttons(activity);
328			}
329
330			inline friend Mode &operator ++(Mode &mode)
331			{
332			return mode = Mode((mode + 1) % Menu);
333			}
334
335			inline friend Mode &operator --(Mode &mode)
336			{
337			return mode = Mode((Menu + mode - 1) % Menu);
338			}
339			};
340
341	douglas	22	int main(int argc, char *argv[])
342			{
343	douglas	26	std::string device;
344
345	douglas	25	{
346	douglas	26	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
347			Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
348			Pcre::RegEx deviceName(_B("^-device=(.+)$"));
349	douglas	25
350	douglas	26	for (char *arg = argv + 1; arg; ++arg)
351	douglas	25	{
352	douglas	26	Pcre::RegEx::Match match;
353	douglas	25
354	douglas	26	if (*arg == _B("-debug"))
355			debug = true;
356			else if (match = devicePath(*arg))
357			device = match[1];
358			else if (match = deviceNumber(*arg))
359			device = _B("/dev/cuaU") + match[1];
360			else if (match = deviceName(*arg))
361			device = _B("/dev/") + match[1];
362			else
363			goto usage;
364	douglas	25	}
365			}
366	douglas	26
367			if (device.empty())
368			{
369			usage: std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;
370
371			return 2;
372			}
373
374			try
375			{
376	douglas	39	DashInterface interface(device);
377	douglas	26
378	douglas	39	interface.Run();
379	douglas	26	}
380	douglas	25	catch (const std::exception &exception)
381			{
382			std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
383
384			return 1;
385			}
386
387	douglas	22	return 0;
388			}