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)
        {
                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.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.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:	44
Committed:	2008-03-06T15:21:03-08:00 (17 years, 4 months ago) by douglas
File size:	8396 byte(s)
Log Message:	Cleanup!
#	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	switch (mode)
57	{
58	case Uname:
59	return Uname_(change);
60	case Music:
61	if (audacious.IsRunning())
62	{
63	int position(audacious.GetPlaylistPosition());
64	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
65
66	artist.resize(20, ' ');
67	display.Set(0, 1, artist);
68
69	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
70
71	title.resize(20, ' ');
72	display.Set(0, 2, title);
73
74	int played(audacious.GetOutputTime() / 1000);
75	int left(audacious.GetPlaylistTime(position) / 1000 - played);
76	char *times;
77
78	::asprintf(&times, "%2i:%02i -%2i:%02i", played / 60, played % 60, left / 60, left % 60);
79
80	std::string times_(times);
81
82	std::free(times);
83
84	times_.resize(20, ' ');
85	display.Set(0, 3, times_);
86	}
87	else
88	{
89	display.Set(0, 1, std::string(20, ' '));
90	display.Set(0, 2, std::string(20, ' '));
91	display.Set(0, 3, _B(" -:-- - -:-- "));
92	}
93
94	return;
95	case English:
96	case Metric:
97	case Nautical:
98	display.Set(0, 1, _B("STUB: GPS ") + (mode == English ? _B("English ") : mode == Metric ? _B("Metric ") : _B("Nautical ")));
99	display.Set(0, 2, std::string(20, ' '));
100	display.Set(0, 3, std::string(20, ' '));
101
102	return;
103	case Menu:
104	if (change)
105	{
106	display.SetCursorStyle(Display::InvertingBlinkingBlock);
107
108	append = true;
109	list = new TopList(display, audacious, append);
110
111	list->Render();
112	}
113	}
114	}
115
116	void Uname_(bool change = false)
117	{
118	if (!now \|\| change)
119	{
120	utsname os;
121
122	::uname(&os);
123
124	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
125	Pcre::RegEx::Match match(version(os.release));
126	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
127
128	name.resize(20, ' ');
129	display.Set(0, 1, name);
130	}
131
132	int mib[] = { CTL_KERN, KERN_BOOTTIME };
133	timeval boottime;
134	size_t size(sizeof (boottime));
135
136	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
137	{
138	time_t uptime(now - boottime.tv_sec);
139
140	if (uptime > 60)
141	uptime += 30;
142
143	char *when;
144	int days(uptime / 86400);
145
146	uptime %= 86400;
147
148	int hours(uptime / 3600);
149
150	uptime %= 3600;
151
152	int minutes(uptime / 60), seconds(uptime % 60);
153
154	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
155
156	std::string then(when);
157
158	std::free(when);
159
160	then.resize(17, ' ');
161
162	if (change)
163	display.Set(0, 2, _B("up ") + then);
164	else
165	display.Set(3, 2, then);
166	}
167	else
168	display.Set(0, 2, _B("up -+--:--:-- "));
169
170	double averages[3];
171
172	if (::getloadavg(averages, 3) == -1 \|\| !now)
173	display.Set(0, 3, _B("-.--, -.--, -.-- "));
174	else
175	{
176	char *load;
177
178	::asprintf(&load, "%.2f, %.2f, %.2f", averages[0], averages[1] , averages[2]);
179
180	std::string load_(load);
181
182	std::free(load);
183
184	load_.resize(20, ' ');
185	display.Set(0, 3, load_);
186	}
187	}
188
189	void Buttons(Display::KeyActivity activity)
190	{
191	_synchronized (displayLock)
192	if (mode != Menu)
193	{
194	bool change(false);
195
196	switch (activity)
197	{
198	case Display::UpPress:
199	--mode;
200
201	goto change;
202	case Display::DownPress:
203	++mode;
204
205	goto change;
206	case Display::LeftPress:
207	if (audacious.IsRunning())
208	audacious.PlaylistPrevious();
209
210	goto update;
211	case Display::RightPress:
212	if (audacious.IsRunning())
213	audacious.PlaylistNext();
214
215	goto update;
216	case Display::EnterPress:
217	previous = mode;
218	mode = Menu;
219
220	goto change;
221	case Display::ExitPress:
222	if (audacious.IsRunning())
223	audacious.PlayPause();
224
225	goto update;
226	default:
227	return;
228	}
229
230	change: change = true;
231
232	update: Mode_(change);
233	}
234	else
235	switch (activity)
236	{
237	case Display::UpPress:
238	return (++*list).Render();
239	case Display::DownPress:
240	return (--*list).Render();
241	case Display::LeftPress:
242	list = list->Left();
243
244	goto render;
245	case Display::RightPress:
246	list = list->Right();
247
248	goto render;
249	case Display::EnterPress:
250	list = list->Enter();
251
252	render: if (list != NULL)
253	return list->Render();
254
255	goto exit;
256	case Display::ExitPress:
257	delete list;
258
259	exit: mode = previous;
260
261	display.SetCursorStyle(Display::NoCursor);
262	display.Set(0, 0, _B(" "));
263	display.Set(18, 0, _B(" "));
264
265	Mode_(true);
266	default:
267	return;
268	}
269	}
270
271	public:
272	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)
273	{
274	_synchronized (displayLock)
275	{
276	display.Clear();
277	display.SetBacklight(100);
278	display.Set(2, 0, _B("--:--:-- -- ---"));
279
280	display.Set(Running, Display::Green, 0);
281	display.Set(Running, Display::Red, 100);
282	display.Set(Audio, Display::Green, 0);
283	display.Set(Audio, Display::Red, 100);
284
285	uint8_t mask(Display::Up \| Display::Enter \| Display::Cancel \| Display::Left \| Display::Right \| Display::Down);
286
287	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	}
296
297	void Run()
298	{
299	_forever
300	{
301	_synchronized (displayLock)
302	{
303	now = Timing::GetTimeOfDay();
304
305	if (mode != Menu)
306	{
307	char when[16];
308
309	std::strftime(when, sizeof (when), "%l:%M:%S %p %Z", std::localtime(now));
310
311	display.Set(2, 0, when);
312	}
313
314	if (audacious.IsRunning() && audacious.IsPlaying())
315	if (audacious.IsPaused())
316	{
317	if (audio != Paused)
318	{
319	display.Set(Audio, Display::Green, 100);
320	display.Set(Audio, Display::Red, 100);
321
322	audio = Paused;
323	}
324	}
325	else
326	{
327	if (audio != Playing)
328	{
329	display.Set(Audio, Display::Green, 100);
330	display.Set(Audio, Display::Red, 0);
331
332	audio = Playing;
333	}
334	}
335	else if (audio != Stopped)
336	{
337	display.Set(Audio, Display::Green, 0);
338	display.Set(Audio, Display::Red, 100);
339
340	audio = Stopped;
341	}
342
343	Mode_();
344	}
345
346	Timing::NanoSleep(Timing::Time(1) -= Timing::GetTimeOfDay().GetNanoseconds());
347	}
348	}
349
350	friend void Buttons(Display::KeyActivity activity, DashInterface *interface)
351	{
352	interface->Buttons(activity);
353	}
354
355	inline friend Mode &operator ++(Mode &mode)
356	{
357	return mode = Mode((mode + 1) % Menu);
358	}
359
360	inline friend Mode &operator --(Mode &mode)
361	{
362	return mode = Mode((Menu + mode - 1) % Menu);
363	}
364	};
365
366	int main(int argc, char *argv[])
367	{
368	std::string device;
369
370	{
371	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
372	Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
373	Pcre::RegEx deviceName(_B("^-device=(.+)$"));
374
375	for (char *arg = argv + 1; arg; ++arg)
376	{
377	Pcre::RegEx::Match match;
378
379	if (*arg == _B("-debug"))
380	debug = true;
381	else if (match = devicePath(*arg))
382	device = match[1];
383	else if (match = deviceNumber(*arg))
384	device = _B("/dev/cuaU") + match[1];
385	else if (match = deviceName(*arg))
386	device = _B("/dev/") + match[1];
387	else
388	goto usage;
389	}
390	}
391
392	if (device.empty())
393	{
394	usage: std::cout << _B("Usage: ") << argv[0] << _B(" [-debug] [-device=device]") << std::endl;
395
396	return 2;
397	}
398
399	try
400	{
401	DashInterface interface(device);
402
403	interface.Run();
404	}
405	catch (const std::exception &exception)
406	{
407	std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
408
409	return 1;
410	}
411
412	return 0;
413	}