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;
        Music::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:	51
Committed:	2008-03-09T14:24:55-07:00 (17 years, 3 months ago) by douglas
File size:	8203 byte(s)
Log Message:	Finish the renaming!
#	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 <regex.hpp>
15	#include <scopes.hpp>
16	#include <timing.hpp>
17
18	#include <GPS.hpp>
19
20	#include <sys/types.h>
21	#include <sys/sysctl.h>
22	#include <sys/utsname.h>
23
24	#include "Display.hpp"
25	#include "MenuList.hpp"
26
27	bool debug(false);
28
29	class DashInterface
30	{
31	enum Mode { Uname, Music, English, Metric, Nautical, Menu } mode, previous;
32	enum { Running, Audio };
33	enum { Stopped, Paused, Playing } audio;
34	Timing::Time now;
35	Audacious::Audacious audacious;
36	//GPS::GPS gps;
37	Music::Library library;
38	MenuList *list;
39	bool append;
40	Display display;
41	Pthreads::ThreadMutex displayLock;
42
43	void Mode_(bool change = false)
44	{
45	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	switch (mode)
55	{
56	case Uname:
57	return Uname_(change);
58	case Music:
59	if (audacious.IsRunning())
60	{
61	int position(audacious.GetPlaylistPosition());
62	std::string artist(Filter(audacious.GetTupleFieldData(_B("artist"), position)));
63
64	artist.resize(20, ' ');
65	display.Set(0, 1, artist);
66
67	std::string title(Filter(audacious.GetTupleFieldData(_B("title"), position)));
68
69	title.resize(20, ' ');
70	display.Set(0, 2, title);
71
72	int played(audacious.GetOutputTime() / 1000);
73	int left(audacious.GetPlaylistTime(position) / 1000 - played);
74	char *times;
75
76	::asprintf(&times, "%2i:%02i -%2i:%02i", played / 60, played % 60, left / 60, left % 60);
77
78	std::string times_(times);
79
80	std::free(times);
81
82	times_.resize(20, ' ');
83	display.Set(0, 3, times_);
84	}
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	case English:
94	case Metric:
95	case Nautical:
96	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	case Menu:
102	if (change)
103	{
104	display.SetCursorPosition(19, 0);
105	display.SetCursorStyle(Display::InvertingBlinkingBlock);
106
107	append = true;
108	list = new TopList(display, audacious, append, library);
109
110	list->Render();
111	}
112	}
113	}
114
115	void Uname_(bool change = false)
116	{
117	if (!now \|\| change)
118	{
119	utsname os;
120
121	::uname(&os);
122
123	static Pcre::RegEx version(_B("^(\\d+\\.\\d+)-([A-Z])[A-Z](-p\\d+)?.$"));
124	Pcre::RegEx::Match match(version(os.release));
125	std::string name(os.sysname + _B(" ") + match[1] + match[2] + match[3]);
126
127	name.resize(20, ' ');
128	display.Set(0, 1, name);
129	}
130
131	int mib[] = { CTL_KERN, KERN_BOOTTIME };
132	timeval boottime;
133	size_t size(sizeof (boottime));
134
135	if (now && ::sysctl(mib, 2, &boottime, &size, NULL, 0) != -1 && boottime.tv_sec != 0)
136	{
137	time_t uptime(now - boottime.tv_sec);
138
139	if (uptime > 60)
140	uptime += 30;
141
142	char *when;
143	int days(uptime / 86400);
144
145	uptime %= 86400;
146
147	int hours(uptime / 3600);
148
149	uptime %= 3600;
150
151	int minutes(uptime / 60), seconds(uptime % 60);
152
153	::asprintf(&when, "%i+%02i:%02i:%02i", days, hours, minutes, seconds);
154
155	std::string then(when);
156
157	std::free(when);
158
159	then.resize(17, ' ');
160
161	if (change)
162	display.Set(0, 2, _B("up ") + then);
163	else
164	display.Set(3, 2, then);
165	}
166	else
167	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	std::string load_(load);
180
181	std::free(load);
182
183	load_.resize(20, ' ');
184	display.Set(0, 3, load_);
185	}
186	}
187
188	void Buttons(Display::KeyActivity activity)
189	{
190	_synchronized (displayLock)
191	if (mode != Menu)
192	{
193	bool change(false);
194
195	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	if (audacious.IsRunning())
207	audacious.PlaylistPrevious();
208
209	goto update;
210	case Display::RightPress:
211	if (audacious.IsRunning())
212	audacious.PlaylistNext();
213
214	goto update;
215	case Display::EnterPress:
216	previous = mode;
217	mode = Menu;
218
219	goto change;
220	case Display::ExitPress:
221	if (audacious.IsRunning())
222	audacious.PlayPause();
223
224	goto update;
225	default:
226	return;
227	}
228
229	change: change = true;
230
231	update: Mode_(change);
232	}
233	else
234	switch (activity)
235	{
236	case Display::UpPress:
237	return (--*list).Render();
238	case Display::DownPress:
239	return (++*list).Render();
240	case Display::LeftPress:
241	list = list->Left();
242
243	goto render;
244	case Display::RightPress:
245	list = list->Right();
246
247	goto render;
248	case Display::EnterPress:
249	list = list->Enter();
250
251	render: if (list != NULL)
252	return list->Render();
253
254	goto exit;
255	case Display::ExitPress:
256	delete list;
257
258	exit: mode = previous;
259
260	display.SetCursorStyle(Display::NoCursor);
261	display.Set(0, 0, _B(" "));
262	display.Set(18, 0, _B(" "));
263
264	Mode_(true);
265	default:
266	return;
267	}
268	}
269
270	public:
271	DashInterface(const std::string &device) : mode(Uname), audio(Stopped), display(device, reinterpret_cast<Display::Callback>(::Buttons), this)
272	{
273	_synchronized (displayLock)
274	{
275	display.Clear();
276	display.SetCursorStyle(Display::NoCursor);
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 (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	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	int main(int argc, char *argv[])
358	{
359	std::string device;
360
361	{
362	Pcre::RegEx devicePath(_B("^-device=(/.+)$"));
363	Pcre::RegEx deviceNumber(_B("^-device=([0-9]+)$"));
364	Pcre::RegEx deviceName(_B("^-device=(.+)$"));
365
366	for (char *arg = argv + 1; arg; ++arg)
367	{
368	Pcre::RegEx::Match match;
369
370	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	}
381	}
382
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	DashInterface interface(device);
393
394	interface.Run();
395	}
396	catch (const std::exception &exception)
397	{
398	std::cerr << argv[0] << _B(": ") << exception.what() << std::endl;
399
400	return 1;
401	}
402
403	return 0;
404	}