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"
#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;
        IConv::IConv ascii;
        Display display;
        Pthreads::ThreadMutex displayLock;
        Audacious::Audacious audacious;
        //GPS::GPS gps;
        MenuList *list;
        bool append;

        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)
        {
                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);

                                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), ascii(_B("ASCII//TRANSLIT//IGNORE"), _B("UTF-8")), 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:	46
Committed:	2008-03-06T19:47:57-08:00 (17 years, 3 months ago) by douglas
File size:	8468 byte(s)
Log Message:	Woo, actually tested that! Note to self: this is why you test early and often, but you knew that already.
#	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 "Display.hpp"
27	#include "MenuList.hpp"
28
29	bool debug(false);
30
31	class DashInterface
32	{
33	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
34	enum { Running, Audio };
35	enum { Stopped, Paused, Playing } audio;
36	Timing::Time now;
37	IConv::IConv ascii;
38	Display display;
39	Pthreads::ThreadMutex displayLock;
40	Audacious::Audacious audacious;
41	//GPS::GPS gps;
42	MenuList *list;
43	bool append;
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(), '~', '\xce');
50
51	return output;
52	}
53
54	void Mode_(bool change = false)
55	{
56	if (mode != Menu)
57	{
58	char when[16];
59
60	std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
61
62	display.Set(2, 0, when);
63	}
64
65	switch (mode)
66	{
67	case Uname:
68	return Uname_(change);
69	case Music:
70	if (audacious.IsRunning())
71	{
72	int position(audacious.GetPlaylistPosition());
73	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
74
75	artist.resize(20, ' ');
76	display.Set(0, 1, artist);
77
78	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
79
80	title.resize(20, ' ');
81	display.Set(0, 2, title);
82
83	int played(audacious.GetOutputTime() / 1000);
84	int left(audacious.GetPlaylistTime(position) / 1000 - played);
85	char *times;
86
87	::asprintf(&times, "%2i:%02i -%2i:%02i", played / 60, played % 60, left / 60, left % 60);
88
89	std::string times_(times);
90
91	std::free(times);
92
93	times_.resize(20, ' ');
94	display.Set(0, 3, times_);
95	}
96	else
97	{
98	display.Set(0, 1, std::string(20, ' '));
99	display.Set(0, 2, std::string(20, ' '));
100	display.Set(0, 3, _B(" -:-- - -:-- "));
101	}
102
103	return;
104	case English:
105	case Metric:
106	case Nautical:
107	display.Set(0, 1, _B("STUB: GPS ") + (mode == English ? _B("English ") : mode == Metric ? _B("Metric ") : _B("Nautical ")));
108	display.Set(0, 2, std::string(20, ' '));
109	display.Set(0, 3, std::string(20, ' '));
110
111	return;
112	case Menu:
113	if (change)
114	{
115	display.SetCursorPosition(19, 0);
116	display.SetCursorStyle(Display::InvertingBlinkingBlock);
117
118	append = true;
119	list = new TopList(display, audacious, append);
120
121	list->Render();
122	}
123	}
124	}
125
126	void Uname_(bool change = false)
127	{
128	if (!now \|\| change)
129	{
130	utsname os;
131
132	::uname(&os);
133
134	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
135	Pcre::RegEx::Match match(version(os.release));
136	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
137
138	name.resize(20, ' ');
139	display.Set(0, 1, name);
140	}
141
142	int mib[] = { CTL_KERN, KERN_BOOTTIME };
143	timeval boottime;
144	size_t size(sizeof (boottime));
145
146	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
147	{
148	time_t uptime(now - boottime.tv_sec);
149
150	if (uptime > 60)
151	uptime += 30;
152
153	char *when;
154	int days(uptime / 86400);
155
156	uptime %= 86400;
157
158	int hours(uptime / 3600);
159
160	uptime %= 3600;
161
162	int minutes(uptime / 60), seconds(uptime % 60);
163
164	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
165
166	std::string then(when);
167
168	std::free(when);
169
170	then.resize(17, ' ');
171
172	if (change)
173	display.Set(0, 2, _B("up ") + then);
174	else
175	display.Set(3, 2, then);
176	}
177	else
178	display.Set(0, 2, _B("up -+--:--:-- "));
179
180	double averages[3];
181
182	if (::getloadavg(averages, 3) == -1 \|\| !now)
183	display.Set(0, 3, _B("-.--, -.--, -.-- "));
184	else
185	{
186	char *load;
187
188	::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);
189
190	std::string load_(load);
191
192	std::free(load);
193
194	load_.resize(20, ' ');
195	display.Set(0, 3, load_);
196	}
197	}
198
199	void Buttons(Display::KeyActivity activity)
200	{
201	_synchronized (displayLock)
202	if (mode != Menu)
203	{
204	bool change(false);
205
206	switch (activity)
207	{
208	case Display::UpPress:
209	--mode;
210
211	goto change;
212	case Display::DownPress:
213	++mode;
214
215	goto change;
216	case Display::LeftPress:
217	if (audacious.IsRunning())
218	audacious.PlaylistPrevious();
219
220	goto update;
221	case Display::RightPress:
222	if (audacious.IsRunning())
223	audacious.PlaylistNext();
224
225	goto update;
226	case Display::EnterPress:
227	previous = mode;
228	mode = Menu;
229
230	goto change;
231	case Display::ExitPress:
232	if (audacious.IsRunning())
233	audacious.PlayPause();
234
235	goto update;
236	default:
237	return;
238	}
239
240	change: change = true;
241
242	update: Mode_(change);
243	}
244	else
245	switch (activity)
246	{
247	case Display::UpPress:
248	return (--*list).Render();
249	case Display::DownPress:
250	return (++*list).Render();
251	case Display::LeftPress:
252	list = list->Left();
253
254	goto render;
255	case Display::RightPress:
256	list = list->Right();
257
258	goto render;
259	case Display::EnterPress:
260	list = list->Enter();
261
262	render: if (list != NULL)
263	return list->Render();
264
265	goto exit;
266	case Display::ExitPress:
267	delete list;
268
269	exit: mode = previous;
270
271	display.SetCursorStyle(Display::NoCursor);
272	display.Set(0, 0, _B(" "));
273	display.Set(18, 0, _B(" "));
274
275	Mode_(true);
276	default:
277	return;
278	}
279	}
280
281	public:
282	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)
283	{
284	_synchronized (displayLock)
285	{
286	display.Clear();
287	display.SetCursorStyle(Display::NoCursor);
288	display.SetBacklight(100);
289	display.Set(2, 0, _B("--:--:-- -- ---"));
290
291	display.Set(Running, Display::Green, 0);
292	display.Set(Running, Display::Red, 100);
293	display.Set(Audio, Display::Green, 0);
294	display.Set(Audio, Display::Red, 100);
295
296	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
297
298	display.KeyReporting(mask, mask);
299
300	Uname_();
301
302	display.Store();
303	display.Set(Running, Display::Green, 100);
304	display.Set(Running, Display::Red, 0);
305	}
306	}
307
308	void Run()
309	{
310	_forever
311	{
312	_synchronized (displayLock)
313	{
314	now = Timing::GetTimeOfDay();
315
316	if (audacious.IsRunning() && audacious.IsPlaying())
317	if (audacious.IsPaused())
318	{
319	if (audio != Paused)
320	{
321	display.Set(Audio, Display::Green, 100);
322	display.Set(Audio, Display::Red, 100);
323
324	audio = Paused;
325	}
326	}
327	else
328	{
329	if (audio != Playing)
330	{
331	display.Set(Audio, Display::Green, 100);
332	display.Set(Audio, Display::Red, 0);
333
334	audio = Playing;
335	}
336	}
337	else if (audio != Stopped)
338	{
339	display.Set(Audio, Display::Green, 0);
340	display.Set(Audio, Display::Red, 100);
341
342	audio = Stopped;
343	}
344
345	Mode_();
346	}
347
348	Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
349	}
350	}
351
352	friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
353	{
354	interface->Buttons(activity);
355	}
356
357	inline friend Mode &operator ++(Mode &mode)
358	{
359	return mode = Mode((mode + 1) % Menu);
360	}
361
362	inline friend Mode &operator --(Mode &mode)
363	{
364	return mode = Mode((Menu + mode - 1) % Menu);
365	}
366	};
367
368	int main(int argc, char *argv[])
369	{
370	std::string device;
371
372	{
373	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
374	Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
375	Pcre::RegEx deviceName(_B("^-device=(.+)$"));
376
377	for (char *arg = argv + 1; arg; ++arg)
378	{
379	Pcre::RegEx::Match match;
380
381	if (*arg == _B("-debug"))
382	debug = true;
383	else if (match = devicePath(*arg))
384	device = match[1];
385	else if (match = deviceNumber(*arg))
386	device = _B("/dev/cuaU") + match[1];
387	else if (match = deviceName(*arg))
388	device = _B("/dev/") + match[1];
389	else
390	goto usage;
391	}
392	}
393
394	if (device.empty())
395	{
396	usage: std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;
397
398	return 2;
399	}
400
401	try
402	{
403	DashInterface interface(device);
404
405	interface.Run();
406	}
407	catch (const std::exception &exception)
408	{
409	std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
410
411	return 1;
412	}
413
414	return 0;
415	}