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1 | /* | |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
19 | * | |
20 | */ | |
21 | ||
22 | #ifdef HAVE_CONFIG_H | |
23 | #include "config.h" | |
24 | #endif | |
25 | #include "viking.h" | |
26 | ||
27 | #include "gpx.h" | |
28 | ||
29 | #include <string.h> | |
30 | #include <stdlib.h> | |
31 | #include <stdio.h> | |
32 | #ifdef HAVE_UNISTD_H | |
33 | #include <unistd.h> | |
34 | #endif | |
35 | #include <glib.h> | |
36 | #include <glib/gstdio.h> | |
37 | #include <glib/gi18n.h> | |
38 | ||
39 | /* Relax some dependencies */ | |
40 | #if ! GLIB_CHECK_VERSION(2,12,0) | |
41 | static gboolean return_true (gpointer a, gpointer b, gpointer c) { return TRUE; } | |
42 | static g_hash_table_remove_all (GHashTable *ght) { g_hash_table_foreach_remove ( ght, (GHRFunc) return_true, FALSE ); } | |
43 | #endif | |
44 | ||
45 | #define TEST_BOOLEAN(str) (! ((str)[0] == '\0' || (str)[0] == '0' || (str)[0] == 'n' || (str)[0] == 'N' || (str)[0] == 'f' || (str)[0] == 'F') ) | |
46 | #define VIK_MAGIC "#VIK" | |
47 | #define GPX_MAGIC "<?xm" | |
48 | #define VIK_MAGIC_LEN 4 | |
49 | ||
50 | #ifdef WINDOWS | |
51 | #define FILE_SEP '\\' | |
52 | #else | |
53 | #define FILE_SEP '/' | |
54 | #endif | |
55 | ||
56 | typedef struct _Stack Stack; | |
57 | ||
58 | struct _Stack { | |
59 | Stack *under; | |
60 | gpointer *data; | |
61 | }; | |
62 | ||
63 | static void pop(Stack **stack) { | |
64 | Stack *tmp = (*stack)->under; | |
65 | g_free ( *stack ); | |
66 | *stack = tmp; | |
67 | } | |
68 | ||
69 | static void push(Stack **stack) | |
70 | { | |
71 | Stack *tmp = g_malloc ( sizeof ( Stack ) ); | |
72 | tmp->under = *stack; | |
73 | *stack = tmp; | |
74 | } | |
75 | ||
76 | static gboolean check_magic ( FILE *f, const gchar *magic_number ) | |
77 | { | |
78 | gchar magic[VIK_MAGIC_LEN]; | |
79 | gboolean rv = FALSE; | |
80 | gint8 i; | |
81 | if ( fread(magic, 1, sizeof(magic), f) == sizeof(magic) && | |
82 | strncmp(magic, magic_number, sizeof(magic)) == 0 ) | |
83 | rv = TRUE; | |
84 | for ( i = sizeof(magic)-1; i >= 0; i-- ) /* the ol' pushback */ | |
85 | ungetc(magic[i],f); | |
86 | return rv; | |
87 | } | |
88 | ||
89 | ||
90 | static gboolean str_starts_with ( const gchar *haystack, const gchar *needle, guint16 len_needle, gboolean must_be_longer ) | |
91 | { | |
92 | if ( strlen(haystack) > len_needle - (!must_be_longer) && strncasecmp ( haystack, needle, len_needle ) == 0 ) | |
93 | return TRUE; | |
94 | return FALSE; | |
95 | } | |
96 | ||
97 | static guint16 layer_type_from_string ( const gchar *str ) | |
98 | { | |
99 | guint8 i; | |
100 | for ( i = 0; i < VIK_LAYER_NUM_TYPES; i++ ) | |
101 | if ( strcasecmp ( str, vik_layer_get_interface(i)->name ) == 0 ) | |
102 | return i; | |
103 | return -1; | |
104 | } | |
105 | ||
106 | void file_write_layer_param ( FILE *f, const gchar *name, guint8 type, VikLayerParamData data ) { | |
107 | /* string lists are handled differently. We get a GList (that shouldn't | |
108 | * be freed) back for get_param and if it is null we shouldn't write | |
109 | * anything at all (otherwise we'd read in a list with an empty string, | |
110 | * not an empty string list. | |
111 | */ | |
112 | if ( type == VIK_LAYER_PARAM_STRING_LIST ) { | |
113 | if ( data.sl ) { | |
114 | GList *iter = (GList *)data.sl; | |
115 | while ( iter ) { | |
116 | fprintf ( f, "%s=", name ); | |
117 | fprintf ( f, "%s\n", (gchar *)(iter->data) ); | |
118 | iter = iter->next; | |
119 | } | |
120 | } | |
121 | } else { | |
122 | fprintf ( f, "%s=", name ); | |
123 | switch ( type ) | |
124 | { | |
125 | case VIK_LAYER_PARAM_DOUBLE: { | |
126 | // char buf[15]; /* locale independent */ | |
127 | // fprintf ( f, "%s\n", (char *) g_dtostr (data.d, buf, sizeof (buf)) ); break; | |
128 | fprintf ( f, "%f\n", data.d ); | |
129 | break; | |
130 | } | |
131 | case VIK_LAYER_PARAM_UINT: fprintf ( f, "%d\n", data.u ); break; | |
132 | case VIK_LAYER_PARAM_INT: fprintf ( f, "%d\n", data.i ); break; | |
133 | case VIK_LAYER_PARAM_BOOLEAN: fprintf ( f, "%c\n", data.b ? 't' : 'f' ); break; | |
134 | case VIK_LAYER_PARAM_STRING: fprintf ( f, "%s\n", data.s ); break; | |
135 | case VIK_LAYER_PARAM_COLOR: fprintf ( f, "#%.2x%.2x%.2x\n", (int)(data.c.red/256),(int)(data.c.green/256),(int)(data.c.blue/256)); break; | |
136 | } | |
137 | } | |
138 | } | |
139 | ||
140 | static void write_layer_params_and_data ( VikLayer *l, FILE *f ) | |
141 | { | |
142 | VikLayerParam *params = vik_layer_get_interface(l->type)->params; | |
143 | VikLayerFuncGetParam get_param = vik_layer_get_interface(l->type)->get_param; | |
144 | ||
145 | fprintf ( f, "name=%s\n", l->name ? l->name : "" ); | |
146 | if ( !l->visible ) | |
147 | fprintf ( f, "visible=f\n" ); | |
148 | ||
149 | if ( params && get_param ) | |
150 | { | |
151 | VikLayerParamData data; | |
152 | guint16 i, params_count = vik_layer_get_interface(l->type)->params_count; | |
153 | for ( i = 0; i < params_count; i++ ) | |
154 | { | |
155 | data = get_param(l,i); | |
156 | file_write_layer_param(f, params[i].name, params[i].type, data); | |
157 | } | |
158 | } | |
159 | if ( vik_layer_get_interface(l->type)->write_file_data ) | |
160 | { | |
161 | fprintf ( f, "\n\n~LayerData\n" ); | |
162 | vik_layer_get_interface(l->type)->write_file_data ( l, f ); | |
163 | fprintf ( f, "~EndLayerData\n" ); | |
164 | } | |
165 | /* foreach param: | |
166 | write param, and get_value, etc. | |
167 | then run layer data, and that's it. | |
168 | */ | |
169 | } | |
170 | ||
171 | static void file_write ( VikAggregateLayer *top, FILE *f, gpointer vp ) | |
172 | { | |
173 | Stack *stack = NULL; | |
174 | VikLayer *current_layer; | |
175 | struct LatLon ll; | |
176 | VikViewportDrawMode mode; | |
177 | gchar *modestring; | |
178 | ||
179 | push(&stack); | |
180 | stack->data = (gpointer) vik_aggregate_layer_get_children(VIK_AGGREGATE_LAYER(top)); | |
181 | stack->under = NULL; | |
182 | ||
183 | /* crazhy CRAZHY */ | |
184 | vik_coord_to_latlon ( vik_viewport_get_center ( VIK_VIEWPORT(vp) ), &ll ); | |
185 | ||
186 | mode = vik_viewport_get_drawmode ( VIK_VIEWPORT(vp) ); | |
187 | switch ( mode ) { | |
188 | case VIK_VIEWPORT_DRAWMODE_UTM: modestring = "utm"; break; | |
189 | case VIK_VIEWPORT_DRAWMODE_EXPEDIA: modestring = "expedia"; break; | |
190 | case VIK_VIEWPORT_DRAWMODE_MERCATOR: modestring = "mercator"; break; | |
191 | default: | |
192 | g_critical("Houston, we've had a problem. mode=%d", mode); | |
193 | } | |
194 | ||
195 | fprintf ( f, "#VIKING GPS Data file " VIKING_URL "\n\nxmpp=%f\nympp=%f\nlat=%f\nlon=%f\nmode=%s\ncolor=%s\ndrawscale=%s\ndrawcentermark=%s", | |
196 | vik_viewport_get_xmpp ( VIK_VIEWPORT(vp) ), vik_viewport_get_ympp ( VIK_VIEWPORT(vp) ), ll.lat, ll.lon, | |
197 | modestring, vik_viewport_get_background_color(VIK_VIEWPORT(vp)), | |
198 | vik_viewport_get_draw_scale(VIK_VIEWPORT(vp)) ? "t" : "f", | |
199 | vik_viewport_get_draw_centermark(VIK_VIEWPORT(vp)) ? "t" : "f" ); | |
200 | ||
201 | if ( ! VIK_LAYER(top)->visible ) | |
202 | fprintf ( f, "visible=f\n" ); | |
203 | ||
204 | while (stack && stack->data) | |
205 | { | |
206 | current_layer = VIK_LAYER(((GList *)stack->data)->data); | |
207 | fprintf ( f, "\n~Layer %s\n", vik_layer_get_interface(current_layer->type)->name ); | |
208 | write_layer_params_and_data ( current_layer, f ); | |
209 | if ( current_layer->type == VIK_LAYER_AGGREGATE && !vik_aggregate_layer_is_empty(VIK_AGGREGATE_LAYER(current_layer)) ) | |
210 | { | |
211 | push(&stack); | |
212 | stack->data = (gpointer) vik_aggregate_layer_get_children(VIK_AGGREGATE_LAYER(current_layer)); | |
213 | } | |
214 | else if ( current_layer->type == VIK_LAYER_GPS && !vik_gps_layer_is_empty(VIK_GPS_LAYER(current_layer)) ) | |
215 | { | |
216 | push(&stack); | |
217 | stack->data = (gpointer) vik_gps_layer_get_children(VIK_GPS_LAYER(current_layer)); | |
218 | } | |
219 | else | |
220 | { | |
221 | stack->data = (gpointer) ((GList *)stack->data)->next; | |
222 | fprintf ( f, "~EndLayer\n\n" ); | |
223 | while ( stack && (!stack->data) ) | |
224 | { | |
225 | pop(&stack); | |
226 | if ( stack ) | |
227 | { | |
228 | stack->data = (gpointer) ((GList *)stack->data)->next; | |
229 | fprintf ( f, "~EndLayer\n\n" ); | |
230 | } | |
231 | } | |
232 | } | |
233 | } | |
234 | /* | |
235 | get vikaggregatelayer's children (?) | |
236 | foreach write ALL params, | |
237 | then layer data (IF function exists) | |
238 | then endlayer | |
239 | ||
240 | impl: | |
241 | stack of layers (LIST) we are working on | |
242 | when layer->next == NULL ... | |
243 | we move on. | |
244 | */ | |
245 | } | |
246 | ||
247 | static void string_list_delete ( gpointer key, gpointer l, gpointer user_data ) | |
248 | { | |
249 | /* 20071021 bugfix */ | |
250 | GList *iter = (GList *) l; | |
251 | while ( iter ) { | |
252 | g_free ( iter->data ); | |
253 | iter = iter->next; | |
254 | } | |
255 | g_list_free ( (GList *) l ); | |
256 | } | |
257 | ||
258 | static void string_list_set_param (gint i, GList *list, gpointer *layer_and_vp) | |
259 | { | |
260 | VikLayerParamData x; | |
261 | x.sl = list; | |
262 | vik_layer_set_param ( VIK_LAYER(layer_and_vp[0]), i, x, layer_and_vp[1] ); | |
263 | } | |
264 | ||
265 | static void file_read ( VikAggregateLayer *top, FILE *f, VikViewport *vp ) | |
266 | { | |
267 | Stack *stack; | |
268 | struct LatLon ll = { 0.0, 0.0 }; | |
269 | gchar buffer[4096]; | |
270 | gchar *line; | |
271 | guint16 len; | |
272 | long line_num = 0; | |
273 | ||
274 | VikLayerParam *params = NULL; /* for current layer, so we don't have to keep on looking up interface */ | |
275 | guint8 params_count = 0; | |
276 | ||
277 | GHashTable *string_lists = g_hash_table_new(g_direct_hash,g_direct_equal); | |
278 | ||
279 | push(&stack); | |
280 | stack->under = NULL; | |
281 | stack->data = (gpointer) top; | |
282 | ||
283 | while ( fgets ( buffer, 4096, f ) ) | |
284 | { | |
285 | line_num++; | |
286 | ||
287 | line = buffer; | |
288 | while ( *line == ' ' || *line =='\t' ) | |
289 | line++; | |
290 | ||
291 | if ( line[0] == '#' ) | |
292 | continue; | |
293 | ||
294 | ||
295 | len = strlen(line); | |
296 | if ( len > 0 && line[len-1] == '\n' ) | |
297 | line[--len] = '\0'; | |
298 | if ( len > 0 && line[len-1] == '\r' ) | |
299 | line[--len] = '\0'; | |
300 | ||
301 | if ( len == 0 ) | |
302 | continue; | |
303 | ||
304 | ||
305 | if ( line[0] == '~' ) | |
306 | { | |
307 | line++; len--; | |
308 | if ( *line == '\0' ) | |
309 | continue; | |
310 | else if ( str_starts_with ( line, "Layer ", 6, TRUE ) ) | |
311 | { | |
312 | int parent_type = VIK_LAYER(stack->data)->type; | |
313 | if ( ( ! stack->data ) || ((parent_type != VIK_LAYER_AGGREGATE) && (parent_type != VIK_LAYER_GPS)) ) | |
314 | { | |
315 | g_warning ( "Line %ld: Layer command inside non-Aggregate Layer (type %d)", line_num, parent_type ); | |
316 | push(&stack); /* inside INVALID layer */ | |
317 | stack->data = NULL; | |
318 | continue; | |
319 | } | |
320 | else | |
321 | { | |
322 | gint16 type = layer_type_from_string ( line+6 ); | |
323 | push(&stack); | |
324 | if ( type == -1 ) | |
325 | { | |
326 | g_warning ( "Line %ld: Unknown type %s", line_num, line+6 ); | |
327 | stack->data = NULL; | |
328 | } | |
329 | else if (parent_type == VIK_LAYER_GPS) | |
330 | { | |
331 | stack->data = (gpointer) vik_gps_layer_get_a_child(VIK_GPS_LAYER(stack->under->data)); | |
332 | params = vik_layer_get_interface(type)->params; | |
333 | params_count = vik_layer_get_interface(type)->params_count; | |
334 | } | |
335 | else | |
336 | { | |
337 | stack->data = (gpointer) vik_layer_create ( type, vp, NULL, FALSE ); | |
338 | params = vik_layer_get_interface(type)->params; | |
339 | params_count = vik_layer_get_interface(type)->params_count; | |
340 | } | |
341 | } | |
342 | } | |
343 | else if ( str_starts_with ( line, "EndLayer", 8, FALSE ) ) | |
344 | { | |
345 | if ( stack->under == NULL ) | |
346 | g_warning ( "Line %ld: Mismatched ~EndLayer command", line_num ); | |
347 | else | |
348 | { | |
349 | /* add any string lists we've accumulated */ | |
350 | gpointer layer_and_vp[2]; | |
351 | layer_and_vp[0] = stack->data; | |
352 | layer_and_vp[1] = vp; | |
353 | g_hash_table_foreach ( string_lists, (GHFunc) string_list_set_param, layer_and_vp ); | |
354 | g_hash_table_remove_all ( string_lists ); | |
355 | ||
356 | if ( stack->data && stack->under->data ) | |
357 | { | |
358 | if (VIK_LAYER(stack->under->data)->type == VIK_LAYER_AGGREGATE) { | |
359 | vik_aggregate_layer_add_layer ( VIK_AGGREGATE_LAYER(stack->under->data), VIK_LAYER(stack->data) ); | |
360 | vik_layer_post_read ( VIK_LAYER(stack->data), vp, TRUE ); | |
361 | } | |
362 | else if (VIK_LAYER(stack->under->data)->type == VIK_LAYER_GPS) { | |
363 | /* TODO: anything else needs to be done here ? */ | |
364 | } | |
365 | else | |
366 | g_warning ( "Line %ld: EndLayer command inside non-Aggregate Layer (type %d)", line_num, VIK_LAYER(stack->data)->type ); | |
367 | } | |
368 | pop(&stack); | |
369 | } | |
370 | } | |
371 | else if ( str_starts_with ( line, "LayerData", 9, FALSE ) ) | |
372 | { | |
373 | if ( stack->data && vik_layer_get_interface(VIK_LAYER(stack->data)->type)->read_file_data ) | |
374 | vik_layer_get_interface(VIK_LAYER(stack->data)->type)->read_file_data ( VIK_LAYER(stack->data), f ); | |
375 | /* must read until hits ~EndLayerData */ | |
376 | ||
377 | else | |
378 | { /* simply skip layer data over */ | |
379 | while ( fgets ( buffer, 4096, f ) ) | |
380 | { | |
381 | line_num++; | |
382 | ||
383 | line = buffer; | |
384 | ||
385 | len = strlen(line); | |
386 | if ( len > 0 && line[len-1] == '\n' ) | |
387 | line[--len] = '\0'; | |
388 | if ( len > 0 && line[len-1] == '\r' ) | |
389 | line[--len] = '\0'; | |
390 | if ( strcasecmp ( line, "~EndLayerData" ) == 0 ) | |
391 | break; | |
392 | } | |
393 | continue; | |
394 | } | |
395 | } | |
396 | else | |
397 | { | |
398 | g_warning ( "Line %ld: Unknown tilde command", line_num ); | |
399 | } | |
400 | } | |
401 | else | |
402 | { | |
403 | gint32 eq_pos = -1; | |
404 | guint16 i; | |
405 | if ( ! stack->data ) | |
406 | continue; | |
407 | ||
408 | for ( i = 0; i < len; i++ ) | |
409 | if ( line[i] == '=' ) | |
410 | eq_pos = i; | |
411 | ||
412 | if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "xmpp", eq_pos ) == 0) /* "hard coded" params: global & for all layer-types */ | |
413 | vik_viewport_set_xmpp ( VIK_VIEWPORT(vp), strtod ( line+5, NULL ) ); | |
414 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "ympp", eq_pos ) == 0) | |
415 | vik_viewport_set_ympp ( VIK_VIEWPORT(vp), strtod ( line+5, NULL ) ); | |
416 | else if ( stack->under == NULL && eq_pos == 3 && strncasecmp ( line, "lat", eq_pos ) == 0 ) | |
417 | ll.lat = strtod ( line+4, NULL ); | |
418 | else if ( stack->under == NULL && eq_pos == 3 && strncasecmp ( line, "lon", eq_pos ) == 0 ) | |
419 | ll.lon = strtod ( line+4, NULL ); | |
420 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "mode", eq_pos ) == 0 && strcasecmp ( line+5, "utm" ) == 0) | |
421 | vik_viewport_set_drawmode ( VIK_VIEWPORT(vp), VIK_VIEWPORT_DRAWMODE_UTM); | |
422 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "mode", eq_pos ) == 0 && strcasecmp ( line+5, "expedia" ) == 0) | |
423 | vik_viewport_set_drawmode ( VIK_VIEWPORT(vp), VIK_VIEWPORT_DRAWMODE_EXPEDIA ); | |
424 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "mode", eq_pos ) == 0 && strcasecmp ( line+5, "google" ) == 0) | |
425 | { | |
426 | g_warning ( _("Draw mode '%s' no more supported"), "google" ); | |
427 | } | |
428 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "mode", eq_pos ) == 0 && strcasecmp ( line+5, "kh" ) == 0) | |
429 | { | |
430 | g_warning ( _("Draw mode '%s' no more supported"), "kh" ); | |
431 | } | |
432 | else if ( stack->under == NULL && eq_pos == 4 && strncasecmp ( line, "mode", eq_pos ) == 0 && strcasecmp ( line+5, "mercator" ) == 0) | |
433 | vik_viewport_set_drawmode ( VIK_VIEWPORT(vp), VIK_VIEWPORT_DRAWMODE_MERCATOR ); | |
434 | else if ( stack->under == NULL && eq_pos == 5 && strncasecmp ( line, "color", eq_pos ) == 0 ) | |
435 | vik_viewport_set_background_color ( VIK_VIEWPORT(vp), line+6 ); | |
436 | else if ( stack->under == NULL && eq_pos == 9 && strncasecmp ( line, "drawscale", eq_pos ) == 0 ) | |
437 | vik_viewport_set_draw_scale ( VIK_VIEWPORT(vp), TEST_BOOLEAN(line+10) ); | |
438 | else if ( stack->under == NULL && eq_pos == 14 && strncasecmp ( line, "drawcentermark", eq_pos ) == 0 ) | |
439 | vik_viewport_set_draw_centermark ( VIK_VIEWPORT(vp), TEST_BOOLEAN(line+15) ); | |
440 | else if ( stack->under && eq_pos == 4 && strncasecmp ( line, "name", eq_pos ) == 0 ) | |
441 | vik_layer_rename ( VIK_LAYER(stack->data), line+5 ); | |
442 | else if ( eq_pos == 7 && strncasecmp ( line, "visible", eq_pos ) == 0 ) | |
443 | VIK_LAYER(stack->data)->visible = TEST_BOOLEAN(line+8); | |
444 | else if ( eq_pos != -1 && stack->under ) | |
445 | { | |
446 | gboolean found_match = FALSE; | |
447 | ||
448 | /* go thru layer params. if len == eq_pos && starts_with jazz, set it. */ | |
449 | /* also got to check for name and visible. */ | |
450 | ||
451 | if ( ! params ) | |
452 | { | |
453 | g_warning ( "Line %ld: No options for this kind of layer", line_num ); | |
454 | continue; | |
455 | } | |
456 | ||
457 | for ( i = 0; i < params_count; i++ ) | |
458 | if ( strlen(params[i].name) == eq_pos && strncasecmp ( line, params[i].name, eq_pos ) == 0 ) | |
459 | { | |
460 | VikLayerParamData x; | |
461 | line += eq_pos+1; | |
462 | if ( params[i].type == VIK_LAYER_PARAM_STRING_LIST ) { | |
463 | GList *l = g_list_append ( g_hash_table_lookup ( string_lists, GINT_TO_POINTER ((gint) i) ), | |
464 | g_strdup(line) ); | |
465 | g_hash_table_replace ( string_lists, GINT_TO_POINTER ((gint)i), l ); | |
466 | /* add the value to a list, possibly making a new list. | |
467 | * this will be passed to the layer when we read an ~EndLayer */ | |
468 | } else { | |
469 | switch ( params[i].type ) | |
470 | { | |
471 | case VIK_LAYER_PARAM_DOUBLE: x.d = strtod(line, NULL); break; | |
472 | case VIK_LAYER_PARAM_UINT: x.u = strtoul(line, NULL, 10); break; | |
473 | case VIK_LAYER_PARAM_INT: x.i = strtol(line, NULL, 10); break; | |
474 | case VIK_LAYER_PARAM_BOOLEAN: x.b = TEST_BOOLEAN(line); break; | |
475 | case VIK_LAYER_PARAM_COLOR: memset(&(x.c), 0, sizeof(x.c)); /* default: black */ | |
476 | gdk_color_parse ( line, &(x.c) ); break; | |
477 | /* STRING or STRING_LIST -- if STRING_LIST, just set param to add a STRING */ | |
478 | default: x.s = line; | |
479 | } | |
480 | vik_layer_set_param ( VIK_LAYER(stack->data), i, x, vp ); | |
481 | } | |
482 | found_match = TRUE; | |
483 | break; | |
484 | } | |
485 | if ( ! found_match ) | |
486 | g_warning ( "Line %ld: Unknown parameter. Line:\n%s", line_num, line ); | |
487 | } | |
488 | else | |
489 | g_warning ( "Line %ld: Invalid parameter or parameter outside of layer.", line_num ); | |
490 | } | |
491 | /* could be: | |
492 | [Layer Type=Bla] | |
493 | [EndLayer] | |
494 | [LayerData] | |
495 | name=this | |
496 | #comment | |
497 | */ | |
498 | } | |
499 | ||
500 | while ( stack ) | |
501 | { | |
502 | if ( stack->under && stack->under->data && stack->data ) | |
503 | { | |
504 | vik_aggregate_layer_add_layer ( VIK_AGGREGATE_LAYER(stack->under->data), VIK_LAYER(stack->data) ); | |
505 | vik_layer_post_read ( VIK_LAYER(stack->data), vp, TRUE ); | |
506 | } | |
507 | pop(&stack); | |
508 | } | |
509 | ||
510 | if ( ll.lat != 0.0 || ll.lon != 0.0 ) | |
511 | vik_viewport_set_center_latlon ( VIK_VIEWPORT(vp), &ll ); | |
512 | ||
513 | if ( ( ! VIK_LAYER(top)->visible ) && VIK_LAYER(top)->realized ) | |
514 | vik_treeview_item_set_visible ( VIK_LAYER(top)->vt, &(VIK_LAYER(top)->iter), FALSE ); | |
515 | ||
516 | /* delete anything we've forgotten about -- should only happen when file ends before an EndLayer */ | |
517 | g_hash_table_foreach ( string_lists, string_list_delete, NULL ); | |
518 | g_hash_table_destroy ( string_lists ); | |
519 | } | |
520 | ||
521 | /* | |
522 | read thru file | |
523 | if "[Layer Type=" | |
524 | push(&stack) | |
525 | new default layer of type (str_to_type) (check interface->name) | |
526 | if "[EndLayer]" | |
527 | VikLayer *vl = stack->data; | |
528 | pop(&stack); | |
529 | vik_aggregate_layer_add_layer(stack->data, vl); | |
530 | if "[LayerData]" | |
531 | vik_layer_data ( VIK_LAYER_DATA(stack->data), f, vp ); | |
532 | ||
533 | */ | |
534 | ||
535 | /* ---------------------------------------------------- */ | |
536 | ||
537 | static FILE *xfopen ( const char *fn, const char *mode ) | |
538 | { | |
539 | if ( strcmp(fn,"-") == 0 ) | |
540 | return stdin; | |
541 | else | |
542 | return g_fopen(fn, "r"); | |
543 | } | |
544 | ||
545 | static void xfclose ( FILE *f ) | |
546 | { | |
547 | if ( f != stdin && f != stdout ) { | |
548 | fclose ( f ); | |
549 | f = NULL; | |
550 | } | |
551 | } | |
552 | ||
553 | /* 0 on failure, 1 on success (vik file) 2 on success (other file) */ | |
554 | gshort a_file_load ( VikAggregateLayer *top, VikViewport *vp, const gchar *filename ) | |
555 | { | |
556 | gboolean is_gpx_file = check_file_ext ( filename, ".gpx" ); | |
557 | FILE *f = xfopen ( filename, "r" ); | |
558 | ||
559 | g_assert ( vp ); | |
560 | ||
561 | if ( ! f ) | |
562 | return 0; | |
563 | ||
564 | if ( !is_gpx_file && check_magic ( f, VIK_MAGIC ) ) | |
565 | { | |
566 | file_read ( top, f, vp ); | |
567 | if ( f != stdin ) | |
568 | xfclose(f); | |
569 | return 1; | |
570 | } | |
571 | else | |
572 | { | |
573 | VikCoord new_center; | |
574 | VikLayer *vtl = vik_layer_create ( VIK_LAYER_TRW, vp, NULL, FALSE ); | |
575 | vik_layer_rename ( vtl, a_file_basename ( filename ) ); | |
576 | ||
577 | if ( is_gpx_file || check_magic ( f, GPX_MAGIC ) ) | |
578 | a_gpx_read_file ( VIK_TRW_LAYER(vtl), f ); | |
579 | else | |
580 | a_gpspoint_read_file ( VIK_TRW_LAYER(vtl), f ); | |
581 | ||
582 | vik_layer_post_read ( vtl, vp, TRUE ); | |
583 | ||
584 | vik_aggregate_layer_add_layer ( top, vtl ); | |
585 | ||
586 | if ( vik_trw_layer_find_center ( VIK_TRW_LAYER(vtl), &new_center ) ) | |
587 | vik_viewport_set_center_coord ( VIK_VIEWPORT(vp), &new_center ); | |
588 | xfclose(f); | |
589 | return 2; | |
590 | } | |
591 | } | |
592 | ||
593 | gboolean a_file_save ( VikAggregateLayer *top, gpointer vp, const gchar *filename ) | |
594 | { | |
595 | FILE *f = g_fopen(filename, "w"); | |
596 | ||
597 | if ( ! f ) | |
598 | return FALSE; | |
599 | ||
600 | file_write ( top, f, vp ); | |
601 | ||
602 | fclose(f); | |
603 | f = NULL; | |
604 | ||
605 | return TRUE; | |
606 | } | |
607 | ||
608 | ||
609 | const gchar *a_file_basename ( const gchar *filename ) | |
610 | { | |
611 | const gchar *t = filename + strlen(filename) - 1; | |
612 | while ( --t > filename ) | |
613 | if ( *(t-1) == FILE_SEP ) | |
614 | break; | |
615 | if ( t >= filename ) | |
616 | return t; | |
617 | return filename; | |
618 | } | |
619 | ||
620 | /* example: | |
621 | gboolean is_gpx = check_file_ext ( "a/b/c.gpx", ".gpx" ); | |
622 | */ | |
623 | gboolean check_file_ext ( const gchar *filename, const gchar *fileext ) | |
624 | { | |
625 | const gchar *basename = a_file_basename(filename); | |
626 | g_assert( filename ); | |
627 | g_assert( fileext && fileext[0]=='.' ); | |
628 | if (!basename) | |
629 | return FALSE; | |
630 | ||
631 | const char * dot = strrchr(basename, '.'); | |
632 | if (dot && !strcmp(dot, fileext)) | |
633 | return TRUE; | |
634 | ||
635 | return FALSE; | |
636 | } | |
637 | ||
638 | gboolean a_file_export ( VikTrwLayer *vtl, const gchar *filename, gshort file_type ) | |
639 | { | |
640 | FILE *f = g_fopen ( filename, "w" ); | |
641 | if ( f ) | |
642 | { | |
643 | if ( file_type == FILE_TYPE_GPSMAPPER ) | |
644 | a_gpsmapper_write_file ( vtl, f ); | |
645 | else if ( file_type == FILE_TYPE_GPX ) | |
646 | a_gpx_write_file ( vtl, f ); | |
647 | else | |
648 | a_gpspoint_write_file ( vtl, f ); | |
649 | fclose ( f ); | |
650 | f = NULL; | |
651 | return TRUE; | |
652 | } | |
653 | return FALSE; | |
654 | } | |
655 | ||
656 | const gchar *a_get_viking_dir() | |
657 | { | |
658 | static gchar *viking_dir = NULL; | |
659 | ||
660 | // TODO: use g_get_user_config_dir ? | |
661 | ||
662 | if (!viking_dir) { | |
663 | const gchar *home = g_getenv("HOME"); | |
664 | if (!home || g_access(home, W_OK)) | |
665 | home = g_get_home_dir (); | |
666 | #ifdef HAVE_MKDTEMP | |
667 | if (!home || g_access(home, W_OK)) | |
668 | { | |
669 | static gchar temp[] = {"/tmp/vikXXXXXX"}; | |
670 | home = mkdtemp(temp); | |
671 | } | |
672 | #endif | |
673 | if (!home || g_access(home, W_OK)) | |
674 | /* Fatal error */ | |
675 | g_critical("Unable to find a base directory"); | |
676 | ||
677 | /* Build the name of the directory */ | |
678 | viking_dir = g_build_filename(home, ".viking", NULL); | |
679 | if (g_file_test(viking_dir, G_FILE_TEST_EXISTS) == FALSE) | |
680 | g_mkdir(viking_dir, 0755); | |
681 | } | |
682 | ||
683 | return viking_dir; | |
684 | } |