truck/DashInterface/DashInterface.cpp

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

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

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

#include <GPS.hpp>

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

#include "Display.hpp"
#include "MenuList.hpp"

bool debug(false);

class DashInterface
{
        enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
        enum { Running, Audio };
        enum { Stopped, Paused, Playing } audio;
        Timing::Time now;
        Audacious::Audacious audacious;
        //GPS::GPS gps;
        MusicLibrary::Library library;
        MenuList *list;
        bool append;
        Display display;
        Pthreads::ThreadMutex displayLock;

        void Mode_(bool change = false)
        {
                if (mode != Menu)
                {
                        char when[16];

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

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

                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)
                        {
                                display.SetCursorPosition(19, 0);
                                display.SetCursorStyle(Display::InvertingBlinkingBlock);

                                append = true;
                                list = new TopList(display, audacious, append, library);

                                list->Render();
                        }
                }
        }

        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:
                                        return (--*list).Render();
                                case Display::DownPress:
                                        return (++*list).Render();
                                case Display::LeftPress:
                                        list = list->Left();

                                        goto render;
                                case Display::RightPress:
                                        list = list->Right();

                                        goto render;
                                case Display::EnterPress:
                                        list = list->Enter();

render:                         if (list != NULL)
                                                return list->Render();

                                        goto exit;
                                case Display::ExitPress:
                                        delete list;

exit:                           mode = previous;

                                        display.SetCursorStyle(Display::NoCursor);
                                        display.Set(0, 0, _B("  "));
                                        display.Set(18, 0, _B("  "));

                                        Mode_(true);
                                default:
                                        return;
                                }
        }

public:
        DashInterface(const std::string &device) : mode(Uname), audio(Stopped), display(device, reinterpret_cast<Display::Callback>(::Buttons), this)
        {
                _synchronized (displayLock)
                {
                        display.Clear();
                        display.SetCursorStyle(Display::NoCursor);
                        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 (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:	47
Committed:	2008-03-07T03:08:31-08:00 (17 years, 3 months ago) by douglas
File size:	8210 byte(s)
Log Message:	Progress, needs moar workz.
#	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	26	#include <regex.hpp>
15	douglas	39	#include <scopes.hpp>
16	douglas	37	#include <timing.hpp>
17	douglas	25
18	douglas	24	#include <GPS.hpp>
19
20	douglas	33	#include <sys/types.h>
21			#include <sys/sysctl.h>
22			#include <sys/utsname.h>
23
24	douglas	26	#include "Display.hpp"
25	douglas	44	#include "MenuList.hpp"
26	douglas	26
27			bool debug(false);
28
29	douglas	39	class DashInterface
30	douglas	33	{
31	douglas	41	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
32	douglas	40	enum { Running, Audio };
33			enum { Stopped, Paused, Playing } audio;
34	douglas	39	Timing::Time now;
35	douglas	40	Audacious::Audacious audacious;
36	douglas	39	//GPS::GPS gps;
37	douglas	47	MusicLibrary::Library library;
38	douglas	44	MenuList *list;
39			bool append;
40	douglas	47	Display display;
41			Pthreads::ThreadMutex displayLock;
42	douglas	39
43			void Mode_(bool change = false)
44	douglas	35	{
45	douglas	46	if (mode != Menu)
46			{
47			char when[16];
48
49			std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
50
51			display.Set(2, 0, when);
52			}
53
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	douglas	44	{
104	douglas	46	display.SetCursorPosition(19, 0);
105	douglas	44	display.SetCursorStyle(Display::InvertingBlinkingBlock);
106
107			append = true;
108	douglas	47	list = new TopList(display, audacious, append, library);
109	douglas	44
110			list->Render();
111			}
112	douglas	39	}
113			}
114	douglas	33
115	douglas	39	void Uname_(bool change = false)
116			{
117			if (!now \|\| change)
118			{
119			utsname os;
120	douglas	33
121	douglas	39	::uname(&os);
122	douglas	33
123	douglas	39	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
124			Pcre::RegEx::Match match(version(os.release));
125	douglas	40	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
126	douglas	33
127	douglas	42	name.resize(20, ' ');
128			display.Set(0, 1, name);
129	douglas	39	}
130	douglas	33
131	douglas	39	int mib[] = { CTL_KERN, KERN_BOOTTIME };
132			timeval boottime;
133			size_t size(sizeof (boottime));
134	douglas	33
135	douglas	39	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
136			{
137			time_t uptime(now - boottime.tv_sec);
138	douglas	33
139	douglas	39	if (uptime > 60)
140			uptime += 30;
141	douglas	33
142	douglas	39	char *when;
143			int days(uptime / 86400);
144	douglas	33
145	douglas	39	uptime %= 86400;
146	douglas	33
147	douglas	39	int hours(uptime / 3600);
148	douglas	33
149	douglas	39	uptime %= 3600;
150	douglas	35
151	douglas	39	int minutes(uptime / 60), seconds(uptime % 60);
152	douglas	35
153	douglas	39	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
154	douglas	35
155	douglas	39	std::string then(when);
156	douglas	35
157	douglas	39	std::free(when);
158
159	douglas	42	then.resize(17, ' ');
160
161	douglas	39	if (change)
162			display.Set(0, 2, _B("up ") + then);
163			else
164			display.Set(3, 2, then);
165			}
166	douglas	35	else
167	douglas	39	display.Set(0, 2, _B("up -+--:--:-- "));
168
169			double averages[3];
170
171			if (::getloadavg(averages, 3) == -1 \|\| !now)
172			display.Set(0, 3, _B("-.--, -.--, -.-- "));
173			else
174			{
175			char *load;
176
177			::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);
178
179	douglas	42	std::string load_(load);
180	douglas	39
181			std::free(load);
182	douglas	42
183			load_.resize(20, ' ');
184			display.Set(0, 3, load_);
185	douglas	39	}
186	douglas	33	}
187
188	douglas	39	void Buttons(Display::KeyActivity activity)
189			{
190			_synchronized (displayLock)
191			if (mode != Menu)
192			{
193			bool change(false);
194	douglas	33
195	douglas	39	switch (activity)
196			{
197			case Display::UpPress:
198			--mode;
199
200			goto change;
201			case Display::DownPress:
202			++mode;
203
204			goto change;
205			case Display::LeftPress:
206	douglas	41	if (audacious.IsRunning())
207			audacious.PlaylistPrevious();
208	douglas	39
209			goto update;
210			case Display::RightPress:
211	douglas	41	if (audacious.IsRunning())
212			audacious.PlaylistNext();
213	douglas	39
214			goto update;
215			case Display::EnterPress:
216	douglas	41	previous = mode;
217	douglas	39	mode = Menu;
218
219			goto change;
220			case Display::ExitPress:
221	douglas	41	if (audacious.IsRunning())
222			audacious.PlayPause();
223	douglas	39
224			goto update;
225			default:
226			return;
227			}
228
229			change: change = true;
230
231			update: Mode_(change);
232			}
233			else
234	douglas	41	switch (activity)
235			{
236			case Display::UpPress:
237	douglas	46	return (--*list).Render();
238			case Display::DownPress:
239	douglas	44	return (++*list).Render();
240	douglas	41	case Display::LeftPress:
241	douglas	44	list = list->Left();
242
243			goto render;
244	douglas	41	case Display::RightPress:
245	douglas	44	list = list->Right();
246
247			goto render;
248	douglas	41	case Display::EnterPress:
249	douglas	44	list = list->Enter();
250
251			render: if (list != NULL)
252			return list->Render();
253
254			goto exit;
255	douglas	41	case Display::ExitPress:
256	douglas	44	delete list;
257	douglas	41
258	douglas	44	exit: mode = previous;
259
260			display.SetCursorStyle(Display::NoCursor);
261	douglas	41	display.Set(0, 0, _B(" "));
262			display.Set(18, 0, _B(" "));
263
264			Mode_(true);
265			default:
266			return;
267			}
268	douglas	39	}
269
270			public:
271	douglas	47	DashInterface(const std::string &device) : mode(Uname), audio(Stopped), display(device, reinterpret_cast<Display::Callback>(::Buttons), this)
272	douglas	33	{
273	douglas	39	_synchronized (displayLock)
274			{
275			display.Clear();
276	douglas	46	display.SetCursorStyle(Display::NoCursor);
277	douglas	39	display.SetBacklight(100);
278			display.Set(2, 0, _B("--:--:-- -- ---"));
279	douglas	33
280	douglas	39	display.Set(Running, Display::Green, 0);
281			display.Set(Running, Display::Red, 100);
282	douglas	40	display.Set(Audio, Display::Green, 0);
283			display.Set(Audio, Display::Red, 100);
284	douglas	33
285	douglas	39	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
286	douglas	35
287	douglas	39	display.KeyReporting(mask, mask);
288
289			Uname_();
290
291			display.Store();
292			display.Set(Running, Display::Green, 100);
293			display.Set(Running, Display::Red, 0);
294			}
295	douglas	33	}
296
297	douglas	39	void Run()
298			{
299			_forever
300			{
301			_synchronized (displayLock)
302			{
303			now = Timing::GetTimeOfDay();
304	douglas	37
305	douglas	40	if (audacious.IsRunning() && audacious.IsPlaying())
306			if (audacious.IsPaused())
307			{
308			if (audio != Paused)
309			{
310			display.Set(Audio, Display::Green, 100);
311			display.Set(Audio, Display::Red, 100);
312
313			audio = Paused;
314			}
315			}
316			else
317			{
318			if (audio != Playing)
319			{
320			display.Set(Audio, Display::Green, 100);
321			display.Set(Audio, Display::Red, 0);
322
323			audio = Playing;
324			}
325			}
326			else if (audio != Stopped)
327			{
328			display.Set(Audio, Display::Green, 0);
329			display.Set(Audio, Display::Red, 100);
330
331			audio = Stopped;
332			}
333
334	douglas	39	Mode_();
335			}
336
337			Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
338			}
339			}
340
341			friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
342			{
343			interface->Buttons(activity);
344			}
345
346			inline friend Mode &operator ++(Mode &mode)
347			{
348			return mode = Mode((mode + 1) % Menu);
349			}
350
351			inline friend Mode &operator --(Mode &mode)
352			{
353			return mode = Mode((Menu + mode - 1) % Menu);
354			}
355			};
356
357	douglas	22	int main(int argc, char *argv[])
358			{
359	douglas	26	std::string device;
360
361	douglas	25	{
362	douglas	26	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
363			Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
364			Pcre::RegEx deviceName(_B("^-device=(.+)$"));
365	douglas	25
366	douglas	26	for (char *arg = argv + 1; arg; ++arg)
367	douglas	25	{
368	douglas	26	Pcre::RegEx::Match match;
369	douglas	25
370	douglas	26	if (*arg == _B("-debug"))
371			debug = true;
372			else if (match = devicePath(*arg))
373			device = match[1];
374			else if (match = deviceNumber(*arg))
375			device = _B("/dev/cuaU") + match[1];
376			else if (match = deviceName(*arg))
377			device = _B("/dev/") + match[1];
378			else
379			goto usage;
380	douglas	25	}
381			}
382	douglas	26
383			if (device.empty())
384			{
385			usage: std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;
386
387			return 2;
388			}
389
390			try
391			{
392	douglas	39	DashInterface interface(device);
393	douglas	26
394	douglas	39	interface.Run();
395	douglas	26	}
396	douglas	25	catch (const std::exception &exception)
397			{
398			std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
399
400			return 1;
401			}
402
403	douglas	22	return 0;
404			}