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- Committer: Charles Kerr
- Date: 2012-02-15 19:25:19 UTC
- mfrom: (144.2.4 indicator-datetime)
- Revision ID: charles.kerr@canonical.com-20120215192519-288t3bik3u0u5zyc
lp:~mterry/indicator-datetime/libtimezonemap
- files removed:
- libmap
- libmap/data
- files modified:
- Makefile.am
added
removed
libmap/cc-timezone-map.c
1
/*
2
* Copyright (C) 2010 Intel, Inc
3
* Copyright (C) 2011 Canonical Ltd.
4
*
5
* Portions from Ubiquity, Copyright (C) 2009 Canonical Ltd.
6
* Written by Evan Dandrea <evand@ubuntu.com>
7
*
8
* This program is free software; you can redistribute it and/or modify
9
* it under the terms of the GNU General Public License as published by
10
* the Free Software Foundation; either version 2 of the License, or
11
* (at your option) any later version.
12
*
13
* This program is distributed in the hope that it will be useful,
14
* but WITHOUT ANY WARRANTY; without even the implied warranty of
15
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16
* GNU General Public License for more details.
17
*
18
* You should have received a copy of the GNU General Public License
19
* along with this program; if not, write to the Free Software
20
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21
*
22
* Author: Thomas Wood <thomas.wood@intel.com>
23
*
24
*/
25
26
#include "cc-timezone-map.h"
27
#include <math.h>
28
#include "tz.h"
29
30
G_DEFINE_TYPE (CcTimezoneMap, cc_timezone_map, GTK_TYPE_WIDGET)
31
32
#define TIMEZONE_MAP_PRIVATE(o) \
33
(G_TYPE_INSTANCE_GET_PRIVATE ((o), CC_TYPE_TIMEZONE_MAP, CcTimezoneMapPrivate))
34
35
36
typedef struct
37
{
38
gdouble offset;
39
guchar red;
40
guchar green;
41
guchar blue;
42
guchar alpha;
43
} CcTimezoneMapOffset;
44
45
struct _CcTimezoneMapPrivate
46
{
47
GdkPixbuf *orig_background;
48
GdkPixbuf *orig_color_map;
49
50
GdkPixbuf *background;
51
GdkPixbuf *color_map;
52
GdkPixbuf *olsen_map;
53
54
guchar *visible_map_pixels;
55
gint visible_map_rowstride;
56
57
gint olsen_map_channels;
58
guchar *olsen_map_pixels;
59
gint olsen_map_rowstride;
60
61
gdouble selected_offset;
62
63
gchar *watermark;
64
65
TzDB *tzdb;
66
TzLocation *location;
67
GHashTable *alias_db;
68
};
69
70
enum
71
{
72
LOCATION_CHANGED,
73
LAST_SIGNAL
74
};
75
76
static guint signals[LAST_SIGNAL];
77
78
79
static CcTimezoneMapOffset color_codes[] =
80
{
81
{-11.0, 43, 0, 0, 255 },
82
{-10.0, 85, 0, 0, 255 },
83
{-9.5, 102, 255, 0, 255 },
84
{-9.0, 128, 0, 0, 255 },
85
{-8.0, 170, 0, 0, 255 },
86
{-7.0, 212, 0, 0, 255 },
87
{-6.0, 255, 0, 1, 255 }, // north
88
{-6.0, 255, 0, 0, 255 }, // south
89
{-5.0, 255, 42, 42, 255 },
90
{-4.5, 192, 255, 0, 255 },
91
{-4.0, 255, 85, 85, 255 },
92
{-3.5, 0, 255, 0, 255 },
93
{-3.0, 255, 128, 128, 255 },
94
{-2.0, 255, 170, 170, 255 },
95
{-1.0, 255, 213, 213, 255 },
96
{0.0, 43, 17, 0, 255 },
97
{1.0, 85, 34, 0, 255 },
98
{2.0, 128, 51, 0, 255 },
99
{3.0, 170, 68, 0, 255 },
100
{3.5, 0, 255, 102, 255 },
101
{4.0, 212, 85, 0, 255 },
102
{4.5, 0, 204, 255, 255 },
103
{5.0, 255, 102, 0, 255 },
104
{5.5, 0, 102, 255, 255 },
105
{5.75, 0, 238, 207, 247 },
106
{6.0, 255, 127, 42, 255 },
107
{6.5, 204, 0, 254, 254 },
108
{7.0, 255, 153, 85, 255 },
109
{8.0, 255, 179, 128, 255 },
110
{9.0, 255, 204, 170, 255 },
111
{9.5, 170, 0, 68, 250 },
112
{10.0, 255, 230, 213, 255 },
113
{10.5, 212, 124, 21, 250 },
114
{11.0, 212, 170, 0, 255 },
115
{11.5, 249, 25, 87, 253 },
116
{12.0, 255, 204, 0, 255 },
117
{12.75, 254, 74, 100, 248 },
118
{13.0, 255, 85, 153, 250 },
119
{-100, 0, 0, 0, 0 }
120
};
121
122
static const gchar * olsen_map_timezones[] = {
123
"Africa/Abidjan",
124
"Africa/Accra",
125
"Africa/Addis_Ababa",
126
"Africa/Algiers",
127
"Africa/Asmara",
128
"Africa/Bamako",
129
"Africa/Bangui",
130
"Africa/Banjul",
131
"Africa/Bissau",
132
"Africa/Blantyre",
133
"Africa/Brazzaville",
134
"Africa/Bujumbura",
135
"Africa/Cairo",
136
"Africa/Casablanca",
137
"Africa/Conakry",
138
"Africa/Dakar",
139
"Africa/Dar_es_Salaam",
140
"Africa/Djibouti",
141
"Africa/Douala",
142
"Africa/El_Aaiun",
143
"Africa/Freetown",
144
"Africa/Gaborone",
145
"Africa/Harare",
146
"Africa/Johannesburg",
147
"Africa/Kampala",
148
"Africa/Khartoum",
149
"Africa/Kigali",
150
"Africa/Kinshasa",
151
"Africa/Lagos",
152
"Africa/Libreville",
153
"Africa/Lome",
154
"Africa/Luanda",
155
"Africa/Lubumbashi",
156
"Africa/Lusaka",
157
"Africa/Malabo",
158
"Africa/Maputo",
159
"Africa/Maseru",
160
"Africa/Mbabane",
161
"Africa/Mogadishu",
162
"Africa/Monrovia",
163
"Africa/Nairobi",
164
"Africa/Ndjamena",
165
"Africa/Niamey",
166
"Africa/Nouakchott",
167
"Africa/Ouagadougou",
168
"Africa/Porto-Novo",
169
"Africa/Sao_Tome",
170
"Africa/Tripoli",
171
"Africa/Tunis",
172
"Africa/Windhoek",
173
"America/Adak",
174
"America/Anguilla",
175
"America/Antigua",
176
"America/Araguaina",
177
"America/Argentina/Buenos_Aires",
178
"America/Argentina/Catamarca",
179
"America/Argentina/Cordoba",
180
"America/Argentina/Jujuy",
181
"America/Argentina/La_Rioja",
182
"America/Argentina/Mendoza",
183
"America/Argentina/Rio_Gallegos",
184
"America/Argentina/San_Juan",
185
"America/Argentina/San_Luis",
186
"America/Argentina/Tucuman",
187
"America/Argentina/Ushuaia",
188
"America/Aruba",
189
"America/Asuncion",
190
"America/Atikokan",
191
"America/Bahia",
192
"America/Barbados",
193
"America/Belem",
194
"America/Belize",
195
"America/Blanc-Sablon",
196
"America/Boa_Vista",
197
"America/Bogota",
198
"America/Boise",
199
"America/Cambridge_Bay",
200
"America/Campo_Grande",
201
"America/Cancun",
202
"America/Caracas",
203
"America/Cayenne",
204
"America/Cayman",
205
"America/Chicago",
206
"America/Chihuahua",
207
"America/Coral_Harbour",
208
"America/Costa_Rica",
209
"America/Cuiaba",
210
"America/Curacao",
211
"America/Dawson",
212
"America/Dawson_Creek",
213
"America/Denver",
214
"America/Dominica",
215
"America/Edmonton",
216
"America/Eirunepe",
217
"America/El_Salvador",
218
"America/Fortaleza",
219
"America/Glace_Bay",
220
"America/Goose_Bay",
221
"America/Grand_Turk",
222
"America/Grenada",
223
"America/Guadeloupe",
224
"America/Guatemala",
225
"America/Guayaquil",
226
"America/Guyana",
227
"America/Halifax",
228
"America/Havana",
229
"America/Hermosillo",
230
"America/Indiana/Indianapolis",
231
"America/Indiana/Knox",
232
"America/Indiana/Marengo",
233
"America/Indiana/Petersburg",
234
"America/Indiana/Vevay",
235
"America/Indiana/Vincennes",
236
"America/Indiana/Winamac",
237
"America/Inuvik",
238
"America/Iqaluit",
239
"America/Jamaica",
240
"America/Juneau",
241
"America/Kentucky/Louisville",
242
"America/Kentucky/Monticello",
243
"America/La_Paz",
244
"America/Lima",
245
"America/Los_Angeles",
246
"America/Maceio",
247
"America/Managua",
248
"America/Manaus",
249
"America/Marigot",
250
"America/Martinique",
251
"America/Mazatlan",
252
"America/Menominee",
253
"America/Merida",
254
"America/Mexico_City",
255
"America/Miquelon",
256
"America/Moncton",
257
"America/Monterrey",
258
"America/Montevideo",
259
"America/Montreal",
260
"America/Montserrat",
261
"America/Nassau",
262
"America/New_York",
263
"America/Nipigon",
264
"America/Noronha",
265
"America/North_Dakota/Center",
266
"America/North_Dakota/Salem",
267
"America/Panama",
268
"America/Pangnirtung",
269
"America/Paramaribo",
270
"America/Phoenix",
271
"America/Port-au-Prince",
272
"America/Port_of_Spain",
273
"America/Porto_Velho",
274
"America/Puerto_Rico",
275
"America/Rainy_River",
276
"America/Rankin_Inlet",
277
"America/Recife",
278
"America/Regina",
279
"America/Resolute",
280
"America/Rio_Branco",
281
"America/Santarem",
282
"America/Santiago",
283
"America/Santo_Domingo",
284
"America/Sao_Paulo",
285
"America/St_Barthelemy",
286
"America/St_Johns",
287
"America/St_Kitts",
288
"America/St_Lucia",
289
"America/St_Thomas",
290
"America/St_Vincent",
291
"America/Tegucigalpa",
292
"America/Thunder_Bay",
293
"America/Tijuana",
294
"America/Toronto",
295
"America/Tortola",
296
"America/Vancouver",
297
"America/Whitehorse",
298
"America/Winnipeg",
299
"America/Yellowknife",
300
"Ameriica/Swift_Current",
301
"Arctic/Longyearbyen",
302
"Asia/Aden",
303
"Asia/Almaty",
304
"Asia/Amman",
305
"Asia/Anadyr",
306
"Asia/Aqtau",
307
"Asia/Aqtobe",
308
"Asia/Ashgabat",
309
"Asia/Baghdad",
310
"Asia/Bahrain",
311
"Asia/Baku",
312
"Asia/Bangkok",
313
"Asia/Beirut",
314
"Asia/Bishkek",
315
"Asia/Brunei",
316
"Asia/Choibalsan",
317
"Asia/Chongqing",
318
"Asia/Colombo",
319
"Asia/Damascus",
320
"Asia/Dhaka",
321
"Asia/Dili",
322
"Asia/Dubai",
323
"Asia/Dushanbe",
324
"Asia/Gaza",
325
"Asia/Harbin",
326
"Asia/Ho_Chi_Minh",
327
"Asia/Hong_Kong",
328
"Asia/Hovd",
329
"Asia/Irkutsk",
330
"Asia/Jakarta",
331
"Asia/Jayapura",
332
"Asia/Jerusalem",
333
"Asia/Kabul",
334
"Asia/Kamchatka",
335
"Asia/Karachi",
336
"Asia/Kashgar",
337
"Asia/Katmandu",
338
"Asia/Kolkata",
339
"Asia/Krasnoyarsk",
340
"Asia/Kuala_Lumpur",
341
"Asia/Kuching",
342
"Asia/Kuwait",
343
"Asia/Macau",
344
"Asia/Magadan",
345
"Asia/Makassar",
346
"Asia/Manila",
347
"Asia/Muscat",
348
"Asia/Nicosia",
349
"Asia/Novosibirsk",
350
"Asia/Omsk",
351
"Asia/Oral",
352
"Asia/Phnom_Penh",
353
"Asia/Pontianak",
354
"Asia/Pyongyang",
355
"Asia/Qatar",
356
"Asia/Qyzylorda",
357
"Asia/Rangoon",
358
"Asia/Riyadh",
359
"Asia/Sakhalin",
360
"Asia/Samarkand",
361
"Asia/Seoul",
362
"Asia/Shanghai",
363
"Asia/Singapore",
364
"Asia/Taipei",
365
"Asia/Tashkent",
366
"Asia/Tbilisi",
367
"Asia/Tehran",
368
"Asia/Thimphu",
369
"Asia/Tokyo",
370
"Asia/Ulaanbaatar",
371
"Asia/Urumqi",
372
"Asia/Vientiane",
373
"Asia/Vladivostok",
374
"Asia/Yakutsk",
375
"Asia/Yekaterinburg",
376
"Asia/Yerevan",
377
"Atlantic/Azores",
378
"Atlantic/Bermuda",
379
"Atlantic/Canary",
380
"Atlantic/Cape_Verde",
381
"Atlantic/Faroe",
382
"Atlantic/Madeira",
383
"Atlantic/Reykjavik",
384
"Atlantic/South_Georgia",
385
"Atlantic/St_Helena",
386
"Atlantic/Stanley",
387
"Australia/Adelaide",
388
"Australia/Brisbane",
389
"Australia/Broken_Hill",
390
"Australia/Currie",
391
"Australia/Darwin",
392
"Australia/Eucla",
393
"Australia/Hobart",
394
"Australia/Lindeman",
395
"Australia/Lord_Howe",
396
"Australia/Melbourne",
397
"Australia/Perth",
398
"Australia/Sydney",
399
"Europe/Amsterdam",
400
"Europe/Andorra",
401
"Europe/Athens",
402
"Europe/Belgrade",
403
"Europe/Berlin",
404
"Europe/Bratislava",
405
"Europe/Brussels",
406
"Europe/Bucharest",
407
"Europe/Budapest",
408
"Europe/Chisinau",
409
"Europe/Copenhagen",
410
"Europe/Dublin",
411
"Europe/Gibraltar",
412
"Europe/Guernsey",
413
"Europe/Helsinki",
414
"Europe/Isle_of_Man",
415
"Europe/Istanbul",
416
"Europe/Jersey",
417
"Europe/Kaliningrad",
418
"Europe/Kiev",
419
"Europe/Lisbon",
420
"Europe/Ljubljana",
421
"Europe/London",
422
"Europe/Luxembourg",
423
"Europe/Madrid",
424
"Europe/Malta",
425
"Europe/Marienhamn",
426
"Europe/Minsk",
427
"Europe/Monaco",
428
"Europe/Moscow",
429
"Europe/Oslo",
430
"Europe/Paris",
431
"Europe/Podgorica",
432
"Europe/Prague",
433
"Europe/Riga",
434
"Europe/Rome",
435
"Europe/Samara",
436
"Europe/San_Marino",
437
"Europe/Sarajevo",
438
"Europe/Simferopol",
439
"Europe/Skopje",
440
"Europe/Sofia",
441
"Europe/Stockholm",
442
"Europe/Tallinn",
443
"Europe/Tirane",
444
"Europe/Uzhgorod",
445
"Europe/Vaduz",
446
"Europe/Vatican",
447
"Europe/Vienna",
448
"Europe/Vilnius",
449
"Europe/Volgograd",
450
"Europe/Warsaw",
451
"Europe/Zagreb",
452
"Europe/Zaporozhye",
453
"Europe/Zurich",
454
"Indian/Antananarivo",
455
"Indian/Chagos",
456
"Indian/Christmas",
457
"Indian/Cocos",
458
"Indian/Comoro",
459
"Indian/Kerguelen",
460
"Indian/Mahe",
461
"Indian/Maldives",
462
"Indian/Mauritius",
463
"Indian/Mayotte",
464
"Indian/Reunion",
465
"Pacific/Apia",
466
"Pacific/Auckland",
467
"Pacific/Chatham",
468
"Pacific/Easter",
469
"Pacific/Efate",
470
"Pacific/Enderbury",
471
"Pacific/Fakaofo",
472
"Pacific/Fiji",
473
"Pacific/Funafuti",
474
"Pacific/Galapagos",
475
"Pacific/Gambier",
476
"Pacific/Guadalcanal",
477
"Pacific/Guam",
478
"Pacific/Honolulu",
479
"Pacific/Johnston",
480
"Pacific/Kiritimati",
481
"Pacific/Kosrae",
482
"Pacific/Kwajalein",
483
"Pacific/Majuro",
484
"Pacific/Marquesas",
485
"Pacific/Midway",
486
"Pacific/Nauru",
487
"Pacific/Niue",
488
"Pacific/Norfolk",
489
"Pacific/Noumea",
490
"Pacific/Pago_Pago",
491
"Pacific/Palau",
492
"Pacific/Pitcairn",
493
"Pacific/Ponape",
494
"Pacific/Port_Moresby",
495
"Pacific/Rarotonga",
496
"Pacific/Saipan",
497
"Pacific/Tahiti",
498
"Pacific/Tarawa",
499
"Pacific/Tongatapu",
500
"Pacific/Truk",
501
"Pacific/Wake",
502
"Pacific/Wallis"
503
};
504
505
static void
506
cc_timezone_map_get_property (GObject *object,
507
guint property_id,
508
GValue *value,
509
GParamSpec *pspec)
510
{
511
switch (property_id)
512
{
513
default:
514
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
515
}
516
}
517
518
static void
519
cc_timezone_map_set_property (GObject *object,
520
guint property_id,
521
const GValue *value,
522
GParamSpec *pspec)
523
{
524
switch (property_id)
525
{
526
default:
527
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
528
}
529
}
530
531
static void
532
cc_timezone_map_dispose (GObject *object)
533
{
534
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (object)->priv;
535
536
if (priv->orig_background)
537
{
538
g_object_unref (priv->orig_background);
539
priv->orig_background = NULL;
540
}
541
542
if (priv->orig_color_map)
543
{
544
g_object_unref (priv->orig_color_map);
545
priv->orig_color_map = NULL;
546
}
547
548
if (priv->olsen_map)
549
{
550
g_object_unref (priv->olsen_map);
551
priv->olsen_map = NULL;
552
553
priv->olsen_map_channels = 0;
554
priv->olsen_map_pixels = NULL;
555
priv->olsen_map_rowstride = 0;
556
}
557
558
if (priv->background)
559
{
560
g_object_unref (priv->background);
561
priv->background = NULL;
562
}
563
564
if (priv->color_map)
565
{
566
g_object_unref (priv->color_map);
567
priv->color_map = NULL;
568
569
priv->visible_map_pixels = NULL;
570
priv->visible_map_rowstride = 0;
571
}
572
573
if (priv->alias_db)
574
{
575
g_hash_table_destroy (priv->alias_db);
576
priv->alias_db = NULL;
577
}
578
579
if (priv->watermark)
580
{
581
g_free (priv->watermark);
582
priv->watermark = NULL;
583
}
584
585
G_OBJECT_CLASS (cc_timezone_map_parent_class)->dispose (object);
586
}
587
588
static void
589
cc_timezone_map_finalize (GObject *object)
590
{
591
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (object)->priv;
592
593
if (priv->tzdb)
594
{
595
tz_db_free (priv->tzdb);
596
priv->tzdb = NULL;
597
}
598
599
600
G_OBJECT_CLASS (cc_timezone_map_parent_class)->finalize (object);
601
}
602
603
/* GtkWidget functions */
604
static void
605
cc_timezone_map_get_preferred_width (GtkWidget *widget,
606
gint *minimum,
607
gint *natural)
608
{
609
/* choose a minimum size small enough to prevent the window
610
* from growing horizontally
611
*/
612
if (minimum != NULL)
613
*minimum = 300;
614
if (natural != NULL)
615
*natural = 300;
616
}
617
618
static void
619
cc_timezone_map_get_preferred_height (GtkWidget *widget,
620
gint *minimum,
621
gint *natural)
622
{
623
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (widget)->priv;
624
gint size;
625
626
/* The + 20 here is a slight tweak to make the map fill the
627
* panel better without causing horizontal growing
628
*/
629
size = 300 * gdk_pixbuf_get_height (priv->orig_background) / gdk_pixbuf_get_width (priv->orig_background) + 20;
630
if (minimum != NULL)
631
*minimum = size;
632
if (natural != NULL)
633
*natural = size;
634
}
635
636
static void
637
cc_timezone_map_size_allocate (GtkWidget *widget,
638
GtkAllocation *allocation)
639
{
640
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (widget)->priv;
641
642
if (priv->background)
643
g_object_unref (priv->background);
644
645
priv->background = gdk_pixbuf_scale_simple (priv->orig_background,
646
allocation->width,
647
allocation->height,
648
GDK_INTERP_BILINEAR);
649
650
if (priv->color_map)
651
g_object_unref (priv->color_map);
652
653
priv->color_map = gdk_pixbuf_scale_simple (priv->orig_color_map,
654
allocation->width,
655
allocation->height,
656
GDK_INTERP_BILINEAR);
657
658
priv->visible_map_pixels = gdk_pixbuf_get_pixels (priv->color_map);
659
priv->visible_map_rowstride = gdk_pixbuf_get_rowstride (priv->color_map);
660
661
GTK_WIDGET_CLASS (cc_timezone_map_parent_class)->size_allocate (widget,
662
allocation);
663
}
664
665
static void
666
cc_timezone_map_realize (GtkWidget *widget)
667
{
668
GdkWindowAttr attr = { 0, };
669
GtkAllocation allocation;
670
GdkCursor *cursor;
671
GdkWindow *window;
672
673
gtk_widget_get_allocation (widget, &allocation);
674
675
gtk_widget_set_realized (widget, TRUE);
676
677
attr.window_type = GDK_WINDOW_CHILD;
678
attr.wclass = GDK_INPUT_OUTPUT;
679
attr.width = allocation.width;
680
attr.height = allocation.height;
681
attr.x = allocation.x;
682
attr.y = allocation.y;
683
attr.event_mask = gtk_widget_get_events (widget)
684
| GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK;
685
686
window = gdk_window_new (gtk_widget_get_parent_window (widget), &attr,
687
GDK_WA_X | GDK_WA_Y);
688
689
gdk_window_set_user_data (window, widget);
690
691
cursor = gdk_cursor_new (GDK_HAND2);
692
gdk_window_set_cursor (window, cursor);
693
694
gtk_widget_set_window (widget, window);
695
}
696
697
698
static gdouble
699
convert_longtitude_to_x (gdouble longitude, gint map_width)
700
{
701
const gdouble xdeg_offset = -6;
702
gdouble x;
703
704
x = (map_width * (180.0 + longitude) / 360.0)
705
+ (map_width * xdeg_offset / 180.0);
706
707
return x;
708
}
709
710
static gdouble
711
radians (gdouble degrees)
712
{
713
return (degrees / 360.0) * G_PI * 2;
714
}
715
716
static gdouble
717
convert_latitude_to_y (gdouble latitude, gdouble map_height)
718
{
719
gdouble bottom_lat = -59;
720
gdouble top_lat = 81;
721
gdouble top_per, y, full_range, top_offset, map_range;
722
723
top_per = top_lat / 180.0;
724
y = 1.25 * log (tan (G_PI_4 + 0.4 * radians (latitude)));
725
full_range = 4.6068250867599998;
726
top_offset = full_range * top_per;
727
map_range = fabs (1.25 * log (tan (G_PI_4 + 0.4 * radians (bottom_lat))) - top_offset);
728
y = fabs (y - top_offset);
729
y = y / map_range;
730
y = y * map_height;
731
return y;
732
}
733
734
735
static gboolean
736
cc_timezone_map_draw (GtkWidget *widget,
737
cairo_t *cr)
738
{
739
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (widget)->priv;
740
GdkPixbuf *hilight, *orig_hilight, *pin;
741
GtkAllocation alloc;
742
gchar *file;
743
GError *err = NULL;
744
gdouble pointx, pointy;
745
gdouble alpha = 1.0;
746
char buf[16];
747
748
gtk_widget_get_allocation (widget, &alloc);
749
750
/* Check if insensitive */
751
if (gtk_widget_get_sensitive (widget))
752
alpha = 0.5;
753
754
/* paint background */
755
#if GTK_CHECK_VERSION(3,0,0)
756
GdkRGBA rgba;
757
gtk_style_context_get_background_color (gtk_widget_get_style_context (widget),
758
gtk_widget_get_state_flags (widget),
759
&rgba);
760
gdk_cairo_set_source_rgba (cr, &rgba);
761
#else
762
GtkStyle * style = gtk_widget_get_style (widget);
763
gdk_cairo_set_source_color (cr, &style->bg[gtk_widget_get_state (widget)]);
764
#endif
765
cairo_paint (cr);
766
gdk_cairo_set_source_pixbuf (cr, priv->background, 0, 0);
767
cairo_paint_with_alpha (cr, alpha);
768
769
/* paint watermark */
770
if (priv->watermark) {
771
cairo_text_extents_t extent;
772
cairo_select_font_face(cr, "Sans", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL);
773
cairo_set_font_size(cr, 12.0);
774
cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
775
cairo_text_extents(cr, priv->watermark, &extent);
776
cairo_move_to(cr, alloc.width - extent.x_advance + extent.x_bearing - 5,
777
alloc.height - extent.height - extent.y_bearing - 5);
778
cairo_show_text(cr, priv->watermark);
779
cairo_stroke(cr);
780
}
781
782
if (!priv->location) {
783
return TRUE;
784
}
785
786
/* paint hilight */
787
file = g_strdup_printf (DATADIR "/timezone_%s.png",
788
g_ascii_formatd (buf, sizeof (buf),
789
"%g", priv->selected_offset));
790
orig_hilight = gdk_pixbuf_new_from_file (file, &err);
791
g_free (file);
792
file = NULL;
793
794
if (!orig_hilight)
795
{
796
g_warning ("Could not load hilight: %s",
797
(err) ? err->message : "Unknown Error");
798
if (err)
799
g_clear_error (&err);
800
}
801
else
802
{
803
804
hilight = gdk_pixbuf_scale_simple (orig_hilight, alloc.width,
805
alloc.height, GDK_INTERP_BILINEAR);
806
gdk_cairo_set_source_pixbuf (cr, hilight, 0, 0);
807
808
cairo_paint_with_alpha (cr, alpha);
809
g_object_unref (hilight);
810
g_object_unref (orig_hilight);
811
}
812
813
/* load pin icon */
814
pin = gdk_pixbuf_new_from_file (DATADIR "/pin.png", &err);
815
816
if (err)
817
{
818
g_warning ("Could not load pin icon: %s", err->message);
819
g_clear_error (&err);
820
}
821
822
pointx = convert_longtitude_to_x (priv->location->longitude, alloc.width);
823
pointy = convert_latitude_to_y (priv->location->latitude, alloc.height);
824
825
if (pointy > alloc.height)
826
pointy = alloc.height;
827
828
if (pin)
829
{
830
gdk_cairo_set_source_pixbuf (cr, pin, pointx - 8, pointy - 14);
831
cairo_paint_with_alpha (cr, alpha);
832
g_object_unref (pin);
833
}
834
835
return TRUE;
836
}
837
838
static void
839
cc_timezone_map_class_init (CcTimezoneMapClass *klass)
840
{
841
GObjectClass *object_class = G_OBJECT_CLASS (klass);
842
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
843
844
g_type_class_add_private (klass, sizeof (CcTimezoneMapPrivate));
845
846
object_class->get_property = cc_timezone_map_get_property;
847
object_class->set_property = cc_timezone_map_set_property;
848
object_class->dispose = cc_timezone_map_dispose;
849
object_class->finalize = cc_timezone_map_finalize;
850
851
widget_class->get_preferred_width = cc_timezone_map_get_preferred_width;
852
widget_class->get_preferred_height = cc_timezone_map_get_preferred_height;
853
widget_class->size_allocate = cc_timezone_map_size_allocate;
854
widget_class->realize = cc_timezone_map_realize;
855
widget_class->draw = cc_timezone_map_draw;
856
857
signals[LOCATION_CHANGED] = g_signal_new ("location-changed",
858
CC_TYPE_TIMEZONE_MAP,
859
G_SIGNAL_RUN_FIRST,
860
0,
861
NULL,
862
NULL,
863
g_cclosure_marshal_VOID__POINTER,
864
G_TYPE_NONE, 1,
865
G_TYPE_POINTER);
866
}
867
868
869
static gint
870
sort_locations (TzLocation *a,
871
TzLocation *b)
872
{
873
if (a->dist > b->dist)
874
return 1;
875
876
if (a->dist < b->dist)
877
return -1;
878
879
return 0;
880
}
881
882
static void
883
set_location (CcTimezoneMap *map,
884
TzLocation *location)
885
{
886
CcTimezoneMapPrivate *priv = map->priv;
887
TzInfo *info;
888
889
priv->location = location;
890
891
info = tz_info_from_location (priv->location);
892
893
priv->selected_offset = tz_location_get_utc_offset (priv->location)
894
/ (60.0*60.0) + ((info->daylight) ? -1.0 : 0.0);
895
896
g_signal_emit (map, signals[LOCATION_CHANGED], 0, priv->location);
897
898
tz_info_free (info);
899
}
900
901
static TzLocation *
902
get_loc_for_xy (GtkWidget * widget, gint x, gint y)
903
{
904
CcTimezoneMapPrivate *priv = CC_TIMEZONE_MAP (widget)->priv;
905
guchar r, g, b, a;
906
guchar *pixels;
907
gint rowstride;
908
gint i;
909
910
const GPtrArray *array;
911
gint width, height;
912
GList *distances = NULL;
913
GtkAllocation alloc;
914
915
rowstride = priv->visible_map_rowstride;
916
pixels = priv->visible_map_pixels;
917
918
r = pixels[(rowstride * y + x * 4)];
919
g = pixels[(rowstride * y + x * 4) + 1];
920
b = pixels[(rowstride * y + x * 4) + 2];
921
a = pixels[(rowstride * y + x * 4) + 3];
922
923
924
for (i = 0; color_codes[i].offset != -100; i++)
925
{
926
if (color_codes[i].red == r && color_codes[i].green == g
927
&& color_codes[i].blue == b && color_codes[i].alpha == a)
928
{
929
priv->selected_offset = color_codes[i].offset;
930
}
931
}
932
933
gtk_widget_queue_draw (widget);
934
935
/* work out the co-ordinates */
936
937
array = tz_get_locations (priv->tzdb);
938
939
gtk_widget_get_allocation (widget, &alloc);
940
width = alloc.width;
941
height = alloc.height;
942
943
for (i = 0; i < array->len; i++)
944
{
945
gdouble pointx, pointy, dx, dy;
946
TzLocation *loc = array->pdata[i];
947
948
pointx = convert_longtitude_to_x (loc->longitude, width);
949
pointy = convert_latitude_to_y (loc->latitude, height);
950
951
dx = pointx - x;
952
dy = pointy - y;
953
954
loc->dist = dx * dx + dy * dy;
955
distances = g_list_prepend (distances, loc);
956
957
}
958
distances = g_list_sort (distances, (GCompareFunc) sort_locations);
959
960
TzLocation * loc = (TzLocation*) distances->data;
961
962
g_list_free (distances);
963
964
return loc;
965
}
966
967
static gboolean
968
button_press_event (GtkWidget *widget,
969
GdkEventButton *event)
970
{
971
TzLocation * loc = get_loc_for_xy (widget, event->x, event->y);
972
set_location (CC_TIMEZONE_MAP (widget), loc);
973
return TRUE;
974
}
975
976
static void
977
state_flags_changed (GtkWidget *widget)
978
{
979
// To catch sensitivity changes
980
gtk_widget_queue_draw (widget);
981
}
982
983
static void
984
load_backward_tz (CcTimezoneMap *self)
985
{
986
GError *error = NULL;
987
char **lines, *contents;
988
guint i;
989
990
self->priv->alias_db = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
991
992
if (g_file_get_contents (GNOMECC_DATA_DIR "/datetime/backward", &contents, NULL, &error) == FALSE)
993
{
994
g_warning ("Failed to load 'backward' file: %s", error->message);
995
return;
996
}
997
lines = g_strsplit (contents, "\n", -1);
998
g_free (contents);
999
for (i = 0; lines[i] != NULL; i++)
1000
{
1001
char **items;
1002
guint j;
1003
char *real, *alias;
1004
1005
if (g_ascii_strncasecmp (lines[i], "Link\t", 5) != 0)
1006
continue;
1007
1008
items = g_strsplit (lines[i], "\t", -1);
1009
real = NULL;
1010
alias = NULL;
1011
/* Skip the "Link<tab>" part */
1012
for (j = 1; items[j] != NULL; j++)
1013
{
1014
if (items[j][0] == '\0')
1015
continue;
1016
if (real == NULL)
1017
{
1018
real = items[j];
1019
continue;
1020
}
1021
alias = items[j];
1022
break;
1023
}
1024
1025
if (real == NULL || alias == NULL)
1026
g_warning ("Could not parse line: %s", lines[i]);
1027
1028
g_hash_table_insert (self->priv->alias_db, g_strdup (alias), g_strdup (real));
1029
g_strfreev (items);
1030
}
1031
g_strfreev (lines);
1032
}
1033
1034
static void
1035
cc_timezone_map_init (CcTimezoneMap *self)
1036
{
1037
CcTimezoneMapPrivate *priv;
1038
GError *err = NULL;
1039
1040
priv = self->priv = TIMEZONE_MAP_PRIVATE (self);
1041
1042
priv->orig_background = gdk_pixbuf_new_from_file (DATADIR "/bg.png",
1043
&err);
1044
1045
if (!priv->orig_background)
1046
{
1047
g_warning ("Could not load background image: %s",
1048
(err) ? err->message : "Unknown error");
1049
g_clear_error (&err);
1050
}
1051
1052
priv->orig_color_map = gdk_pixbuf_new_from_file (DATADIR "/cc.png",
1053
&err);
1054
if (!priv->orig_color_map)
1055
{
1056
g_warning ("Could not load background image: %s",
1057
(err) ? err->message : "Unknown error");
1058
g_clear_error (&err);
1059
}
1060
1061
priv->olsen_map = gdk_pixbuf_new_from_file (DATADIR "/olsen_map.png",
1062
&err);
1063
if (!priv->olsen_map)
1064
{
1065
g_warning ("Could not load olsen map: %s",
1066
(err) ? err->message : "Unknown error");
1067
g_clear_error (&err);
1068
}
1069
priv->olsen_map_channels = gdk_pixbuf_get_n_channels (priv->olsen_map);
1070
priv->olsen_map_pixels = gdk_pixbuf_get_pixels (priv->olsen_map);
1071
priv->olsen_map_rowstride = gdk_pixbuf_get_rowstride (priv->olsen_map);
1072
1073
priv->tzdb = tz_load_db ();
1074
1075
g_signal_connect (self, "button-press-event", G_CALLBACK (button_press_event),
1076
NULL);
1077
g_signal_connect (self, "state-flags-changed", G_CALLBACK (state_flags_changed),
1078
NULL);
1079
1080
load_backward_tz (self);
1081
}
1082
1083
CcTimezoneMap *
1084
cc_timezone_map_new (void)
1085
{
1086
return g_object_new (CC_TYPE_TIMEZONE_MAP, NULL);
1087
}
1088
1089
void
1090
cc_timezone_map_set_timezone (CcTimezoneMap *map,
1091
const gchar *timezone)
1092
{
1093
GPtrArray *locations;
1094
guint i;
1095
char *real_tz;
1096
1097
real_tz = g_hash_table_lookup (map->priv->alias_db, timezone);
1098
1099
locations = tz_get_locations (map->priv->tzdb);
1100
1101
for (i = 0; i < locations->len; i++)
1102
{
1103
TzLocation *loc = locations->pdata[i];
1104
1105
if (!g_strcmp0 (loc->zone, real_tz ? real_tz : timezone))
1106
{
1107
set_location (map, loc);
1108
break;
1109
}
1110
}
1111
1112
gtk_widget_queue_draw (GTK_WIDGET (map));
1113
}
1114
1115
void
1116
cc_timezone_map_set_coords (CcTimezoneMap *map, gdouble lon, gdouble lat)
1117
{
1118
const gchar * zone = cc_timezone_map_get_timezone_at_coords (map, lon, lat);
1119
cc_timezone_map_set_timezone (map, zone);
1120
}
1121
1122
const gchar *
1123
cc_timezone_map_get_timezone_at_coords (CcTimezoneMap *map, gdouble lon, gdouble lat)
1124
{
1125
gint x = (int)(2048.0 / 360.0 * (180.0 + lon));
1126
gint y = (int)(1024.0 / 180.0 * (90.0 - lat));
1127
gint offset = map->priv->olsen_map_rowstride * y + x * map->priv->olsen_map_channels;
1128
guchar color0 = map->priv->olsen_map_pixels[offset];
1129
guchar color1 = map->priv->olsen_map_pixels[offset + 1];
1130
gint zone = ((color0 & 248) << 1) + ((color1 >>4) & 15);
1131
1132
const gchar * city = NULL;
1133
if (zone < G_N_ELEMENTS(olsen_map_timezones))
1134
city = olsen_map_timezones[zone];
1135
1136
if (city != NULL) {
1137
return city;
1138
}
1139
else {
1140
GtkAllocation alloc;
1141
gtk_widget_get_allocation (GTK_WIDGET (map), &alloc);
1142
x = convert_longtitude_to_x(lon, alloc.width);
1143
y = convert_latitude_to_y(lat, alloc.height);
1144
TzLocation * loc = get_loc_for_xy(GTK_WIDGET (map), x, y);
1145
return loc->zone;
1146
}
1147
}
1148
1149
void
1150
cc_timezone_map_set_watermark (CcTimezoneMap *map, const gchar * watermark)
1151
{
1152
if (map->priv->watermark)
1153
g_free (map->priv->watermark);
1154
1155
map->priv->watermark = g_strdup (watermark);
1156
gtk_widget_queue_draw (GTK_WIDGET (map));
1157
}
1158
1159
TzLocation *
1160
cc_timezone_map_get_location (CcTimezoneMap *map)
1161
{
1162
return map->priv->location;
1163
}
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Version: 2.0.1