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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 | #ifdef HAVE_CONFIG_H | |
22 | #include "config.h" | |
23 | #endif | |
24 | ||
25 | #include <stdio.h> | |
26 | #include <string.h> | |
27 | #include <glib/gprintf.h> | |
28 | #include <glib/gi18n.h> | |
29 | ||
30 | #include "viking.h" | |
31 | #include "babel.h" | |
32 | #include "gpx.h" | |
33 | #include "acquire.h" | |
34 | ||
35 | /************************ FILTER LIST *******************/ | |
36 | // extern VikDataSourceInterface vik_datasource_gps_interface; | |
37 | // extern VikDataSourceInterface vik_datasource_google_interface; | |
38 | ||
39 | /*** Input is TRWLayer ***/ | |
40 | extern VikDataSourceInterface vik_datasource_bfilter_simplify_interface; | |
41 | extern VikDataSourceInterface vik_datasource_bfilter_dup_interface; | |
42 | ||
43 | /*** Input is a track and a TRWLayer ***/ | |
44 | extern VikDataSourceInterface vik_datasource_bfilter_polygon_interface; | |
45 | extern VikDataSourceInterface vik_datasource_bfilter_exclude_polygon_interface; | |
46 | ||
47 | /*** Input is a track ***/ | |
48 | ||
49 | const VikDataSourceInterface *filters[] = { | |
50 | &vik_datasource_bfilter_simplify_interface, | |
51 | &vik_datasource_bfilter_dup_interface, | |
52 | &vik_datasource_bfilter_polygon_interface, | |
53 | &vik_datasource_bfilter_exclude_polygon_interface, | |
54 | }; | |
55 | ||
56 | const guint N_FILTERS = sizeof(filters) / sizeof(filters[0]); | |
57 | ||
58 | VikTrack *filter_track = NULL; | |
59 | ||
60 | /********************************************************/ | |
61 | ||
62 | /* passed along to worker thread */ | |
63 | typedef struct { | |
64 | acq_dialog_widgets_t *w; | |
65 | gchar *cmd; | |
66 | gchar *extra; | |
67 | } w_and_interface_t; | |
68 | ||
69 | ||
70 | /********************************************************* | |
71 | * Definitions and routines for acquiring data from Data Sources in general | |
72 | *********************************************************/ | |
73 | ||
74 | static void progress_func ( BabelProgressCode c, gpointer data, acq_dialog_widgets_t *w ) | |
75 | { | |
76 | gdk_threads_enter (); | |
77 | if (!w->ok) { | |
78 | if ( w->source_interface->cleanup_func ) | |
79 | w->source_interface->cleanup_func( w->user_data ); | |
80 | g_free ( w ); | |
81 | gdk_threads_leave(); | |
82 | g_thread_exit ( NULL ); | |
83 | } | |
84 | gdk_threads_leave (); | |
85 | ||
86 | if ( w->source_interface->progress_func ) | |
87 | w->source_interface->progress_func ( (gpointer) c, data, w ); | |
88 | } | |
89 | ||
90 | ||
91 | /* this routine is the worker thread. there is only one simultaneous download allowed */ | |
92 | static void get_from_anything ( w_and_interface_t *wi ) | |
93 | { | |
94 | gchar *cmd = wi->cmd; | |
95 | gchar *extra = wi->extra; | |
96 | gboolean result = TRUE; | |
97 | VikTrwLayer *vtl = NULL; | |
98 | ||
99 | gboolean creating_new_layer = TRUE; | |
100 | ||
101 | acq_dialog_widgets_t *w = wi->w; | |
102 | VikDataSourceInterface *source_interface = wi->w->source_interface; | |
103 | g_free ( wi ); | |
104 | wi = NULL; | |
105 | ||
106 | gdk_threads_enter(); | |
107 | if (source_interface->mode == VIK_DATASOURCE_ADDTOLAYER) { | |
108 | VikLayer *current_selected = vik_layers_panel_get_selected ( w->vlp ); | |
109 | if ( IS_VIK_TRW_LAYER(current_selected) ) { | |
110 | vtl = VIK_TRW_LAYER(current_selected); | |
111 | creating_new_layer = FALSE; | |
112 | } | |
113 | } | |
114 | if ( creating_new_layer ) { | |
115 | vtl = VIK_TRW_LAYER ( vik_layer_create ( VIK_LAYER_TRW, w->vvp, NULL, FALSE ) ); | |
116 | vik_layer_rename ( VIK_LAYER ( vtl ), _(source_interface->layer_title) ); | |
117 | gtk_label_set_text ( GTK_LABEL(w->status), _("Working...") ); | |
118 | } | |
119 | gdk_threads_leave(); | |
120 | ||
121 | // TODO consider removing 'type' and make everything run via the specficied process function | |
122 | switch ( source_interface->type ) { | |
123 | case VIK_DATASOURCE_GPSBABEL_DIRECT: | |
124 | result = a_babel_convert_from (vtl, cmd, extra, (BabelStatusFunc) progress_func, w); | |
125 | break; | |
126 | case VIK_DATASOURCE_URL: | |
127 | result = a_babel_convert_from_url (vtl, cmd, extra, (BabelStatusFunc) progress_func, w); | |
128 | break; | |
129 | case VIK_DATASOURCE_SHELL_CMD: | |
130 | result = a_babel_convert_from_shellcommand ( vtl, cmd, extra, (BabelStatusFunc) progress_func, w); | |
131 | break; | |
132 | case VIK_DATASOURCE_INTERNAL: | |
133 | if ( source_interface->process_func ) | |
134 | result = source_interface->process_func ( vtl, cmd, extra, (BabelStatusFunc) progress_func, w ); | |
135 | break; | |
136 | default: | |
137 | g_critical("Houston, we've had a problem."); | |
138 | } | |
139 | ||
140 | g_free ( cmd ); | |
141 | g_free ( extra ); | |
142 | ||
143 | if (!result) { | |
144 | gdk_threads_enter(); | |
145 | gtk_label_set_text ( GTK_LABEL(w->status), _("Error: acquisition failed.") ); | |
146 | if ( creating_new_layer ) | |
147 | g_object_unref ( G_OBJECT ( vtl ) ); | |
148 | gdk_threads_leave(); | |
149 | } | |
150 | else { | |
151 | gdk_threads_enter(); | |
152 | if (w->ok) { | |
153 | gtk_label_set_text ( GTK_LABEL(w->status), _("Done.") ); | |
154 | if ( creating_new_layer ) { | |
155 | /* Only create the layer if it actually contains anything useful */ | |
156 | if ( g_hash_table_size (vik_trw_layer_get_tracks(vtl)) || | |
157 | g_hash_table_size (vik_trw_layer_get_waypoints(vtl)) ) { | |
158 | vik_layer_post_read ( VIK_LAYER(vtl), w->vvp, TRUE ); | |
159 | vik_aggregate_layer_add_layer( vik_layers_panel_get_top_layer(w->vlp), VIK_LAYER(vtl)); | |
160 | } | |
161 | else | |
162 | gtk_label_set_text ( GTK_LABEL(w->status), _("No data.") ); | |
163 | } | |
164 | /* View this data if available and is desired */ | |
165 | if ( vtl && source_interface->autoview ) { | |
166 | vik_trw_layer_auto_set_view ( vtl, vik_layers_panel_get_viewport(w->vlp) ); | |
167 | vik_layers_panel_emit_update (w->vlp); | |
168 | } | |
169 | if ( source_interface->keep_dialog_open ) { | |
170 | gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT, TRUE ); | |
171 | gtk_dialog_set_response_sensitive ( GTK_DIALOG(w->dialog), GTK_RESPONSE_REJECT, FALSE ); | |
172 | } else { | |
173 | gtk_dialog_response ( GTK_DIALOG(w->dialog), GTK_RESPONSE_ACCEPT ); | |
174 | } | |
175 | } else { | |
176 | /* canceled */ | |
177 | if ( creating_new_layer ) | |
178 | g_object_unref(vtl); | |
179 | } | |
180 | } | |
181 | if ( source_interface->cleanup_func ) | |
182 | source_interface->cleanup_func ( w->user_data ); | |
183 | ||
184 | if ( w->ok ) { | |
185 | w->ok = FALSE; | |
186 | } else { | |
187 | g_free ( w ); | |
188 | } | |
189 | ||
190 | gdk_threads_leave(); | |
191 | g_thread_exit ( NULL ); | |
192 | } | |
193 | ||
194 | ||
195 | static gchar *write_tmp_trwlayer ( VikTrwLayer *vtl ) | |
196 | { | |
197 | int fd_src; | |
198 | gchar *name_src; | |
199 | FILE *f; | |
200 | g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0); | |
201 | f = fdopen(fd_src, "w"); | |
202 | a_gpx_write_file(vtl, f); | |
203 | fclose(f); | |
204 | f = NULL; | |
205 | return name_src; | |
206 | } | |
207 | ||
208 | /* TODO: write with name of old track */ | |
209 | static gchar *write_tmp_track ( VikTrack *track ) | |
210 | { | |
211 | int fd_src; | |
212 | gchar *name_src; | |
213 | FILE *f; | |
214 | g_assert ((fd_src = g_file_open_tmp("tmp-viking.XXXXXX", &name_src, NULL)) >= 0); | |
215 | f = fdopen(fd_src, "w"); | |
216 | a_gpx_write_track_file(track, f); /* Thank you Guilhem! Just when I needed this function... -- Evan */ | |
217 | fclose(f); | |
218 | f = NULL; | |
219 | return name_src; | |
220 | } | |
221 | ||
222 | /* TODO: cleanup, getr rid of redundancy */ | |
223 | ||
224 | /* depending on type of filter, often only vtl or track will be given. | |
225 | * the other can be NULL. | |
226 | */ | |
227 | static void acquire ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikDataSourceInterface *source_interface, | |
228 | VikTrwLayer *vtl, VikTrack *track ) | |
229 | { | |
230 | /* for manual dialogs */ | |
231 | GtkWidget *dialog = NULL; | |
232 | GtkWidget *status; | |
233 | gchar *cmd = NULL; | |
234 | gchar *extra = NULL; | |
235 | gchar *cmd_off = NULL; | |
236 | gchar *extra_off = NULL; | |
237 | acq_dialog_widgets_t *w; | |
238 | gpointer user_data; | |
239 | ||
240 | /* for UI builder */ | |
241 | gpointer pass_along_data; | |
242 | VikLayerParamData *paramdatas = NULL; | |
243 | ||
244 | w_and_interface_t *wi; | |
245 | ||
246 | /*** INIT AND CHECK EXISTENCE ***/ | |
247 | if ( source_interface->init_func ) | |
248 | user_data = source_interface->init_func(); | |
249 | else | |
250 | user_data = NULL; | |
251 | pass_along_data = user_data; | |
252 | ||
253 | if ( source_interface->check_existence_func ) { | |
254 | gchar *error_str = source_interface->check_existence_func(); | |
255 | if ( error_str ) { | |
256 | a_dialog_error_msg ( GTK_WINDOW(vw), error_str ); | |
257 | g_free ( error_str ); | |
258 | return; | |
259 | } | |
260 | } | |
261 | ||
262 | /* BUILD UI & GET OPTIONS IF NECESSARY. */ | |
263 | ||
264 | /* POSSIBILITY 0: NO OPTIONS. DO NOTHING HERE. */ | |
265 | /* POSSIBILITY 1: ADD_SETUP_WIDGETS_FUNC */ | |
266 | if ( source_interface->add_setup_widgets_func ) { | |
267 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
268 | ||
269 | gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT ); | |
270 | GtkWidget *response_w = NULL; | |
271 | #if GTK_CHECK_VERSION (2, 20, 0) | |
272 | response_w = gtk_dialog_get_widget_for_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT ); | |
273 | #endif | |
274 | ||
275 | source_interface->add_setup_widgets_func(dialog, vvp, user_data); | |
276 | gtk_window_set_title ( GTK_WINDOW(dialog), _(source_interface->window_title) ); | |
277 | ||
278 | if ( response_w ) | |
279 | gtk_widget_grab_focus ( response_w ); | |
280 | ||
281 | if ( gtk_dialog_run ( GTK_DIALOG(dialog) ) != GTK_RESPONSE_ACCEPT ) { | |
282 | source_interface->cleanup_func(user_data); | |
283 | gtk_widget_destroy(dialog); | |
284 | return; | |
285 | } | |
286 | } | |
287 | /* POSSIBILITY 2: UI BUILDER */ | |
288 | else if ( source_interface->params ) { | |
289 | paramdatas = a_uibuilder_run_dialog ( source_interface->window_title, GTK_WINDOW(vw), | |
290 | source_interface->params, source_interface->params_count, | |
291 | source_interface->params_groups, source_interface->params_groups_count, | |
292 | source_interface->params_defaults ); | |
293 | if ( paramdatas ) | |
294 | pass_along_data = paramdatas; | |
295 | else | |
296 | return; /* TODO: do we have to free anything here? */ | |
297 | } | |
298 | ||
299 | /* CREATE INPUT DATA & GET COMMAND STRING */ | |
300 | ||
301 | if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER ) { | |
302 | gchar *name_src = write_tmp_trwlayer ( vtl ); | |
303 | ||
304 | ((VikDataSourceGetCmdStringFuncWithInput) source_interface->get_cmd_string_func) | |
305 | ( pass_along_data, &cmd, &extra, name_src ); | |
306 | ||
307 | g_free ( name_src ); | |
308 | /* TODO: delete the tmp file? or delete it only after we're done with it? */ | |
309 | } else if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK ) { | |
310 | gchar *name_src = write_tmp_trwlayer ( vtl ); | |
311 | gchar *name_src_track = write_tmp_track ( track ); | |
312 | ||
313 | ((VikDataSourceGetCmdStringFuncWithInputInput) source_interface->get_cmd_string_func) | |
314 | ( pass_along_data, &cmd, &extra, name_src, name_src_track ); | |
315 | ||
316 | g_free ( name_src ); | |
317 | g_free ( name_src_track ); | |
318 | } else if ( source_interface->inputtype == VIK_DATASOURCE_INPUTTYPE_TRACK ) { | |
319 | gchar *name_src_track = write_tmp_track ( track ); | |
320 | ||
321 | ((VikDataSourceGetCmdStringFuncWithInput) source_interface->get_cmd_string_func) | |
322 | ( pass_along_data, &cmd, &extra, name_src_track ); | |
323 | ||
324 | g_free ( name_src_track ); | |
325 | } else if ( source_interface->get_cmd_string_func ) | |
326 | source_interface->get_cmd_string_func ( pass_along_data, &cmd, &extra ); | |
327 | ||
328 | /* Get data for Off command */ | |
329 | if ( source_interface->off_func ) { | |
330 | source_interface->off_func ( pass_along_data, &cmd_off, &extra_off ); | |
331 | } | |
332 | ||
333 | /* cleanup for option dialogs */ | |
334 | if ( source_interface->add_setup_widgets_func ) { | |
335 | gtk_widget_destroy(dialog); | |
336 | dialog = NULL; | |
337 | } else if ( source_interface->params ) { | |
338 | a_uibuilder_free_paramdatas ( paramdatas, source_interface->params, source_interface->params_count ); | |
339 | } | |
340 | ||
341 | /*** LET'S DO IT! ***/ | |
342 | ||
343 | if ( ! cmd ) | |
344 | return; | |
345 | ||
346 | w = g_malloc(sizeof(*w)); | |
347 | wi = g_malloc(sizeof(*wi)); | |
348 | wi->w = w; | |
349 | wi->w->source_interface = source_interface; | |
350 | wi->cmd = cmd; | |
351 | wi->extra = extra; /* usually input data type (?) */ | |
352 | ||
353 | dialog = gtk_dialog_new_with_buttons ( "", GTK_WINDOW(vw), 0, GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT, NULL ); | |
354 | gtk_dialog_set_response_sensitive ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT, FALSE ); | |
355 | gtk_window_set_title ( GTK_WINDOW(dialog), _(source_interface->window_title) ); | |
356 | ||
357 | ||
358 | w->dialog = dialog; | |
359 | w->ok = TRUE; | |
360 | status = gtk_label_new (_("Status: detecting gpsbabel")); | |
361 | gtk_box_pack_start ( GTK_BOX(GTK_DIALOG(dialog)->vbox), status, FALSE, FALSE, 5 ); | |
362 | gtk_dialog_set_default_response ( GTK_DIALOG(dialog), GTK_RESPONSE_ACCEPT ); | |
363 | gtk_widget_show_all(status); | |
364 | w->status = status; | |
365 | ||
366 | w->vw = vw; | |
367 | w->vlp = vlp; | |
368 | w->vvp = vvp; | |
369 | if ( source_interface->add_progress_widgets_func ) { | |
370 | source_interface->add_progress_widgets_func ( dialog, user_data ); | |
371 | } | |
372 | w->user_data = user_data; | |
373 | ||
374 | ||
375 | g_thread_create((GThreadFunc)get_from_anything, wi, FALSE, NULL ); | |
376 | ||
377 | gtk_dialog_run ( GTK_DIALOG(dialog) ); | |
378 | if ( w->ok ) | |
379 | w->ok = FALSE; /* tell thread to stop. TODO: add mutex */ | |
380 | else { | |
381 | if ( cmd_off ) { | |
382 | /* Turn off */ | |
383 | a_babel_convert_from (NULL, cmd_off, extra_off, NULL, NULL); | |
384 | } | |
385 | g_free ( w ); /* thread has finished; free w */ | |
386 | } | |
387 | gtk_widget_destroy ( dialog ); | |
388 | } | |
389 | ||
390 | void a_acquire ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikDataSourceInterface *source_interface ) { | |
391 | acquire ( vw, vlp, vvp, source_interface, NULL, NULL ); | |
392 | } | |
393 | ||
394 | static void acquire_trwlayer_callback ( GObject *menuitem, gpointer *pass_along ) | |
395 | { | |
396 | VikDataSourceInterface *iface = g_object_get_data ( menuitem, "vik_acq_iface" ); | |
397 | VikWindow *vw = pass_along[0]; | |
398 | VikLayersPanel *vlp = pass_along[1]; | |
399 | VikViewport *vvp = pass_along[2]; | |
400 | VikTrwLayer *vtl = pass_along[3]; | |
401 | VikTrack *tr = pass_along[4]; | |
402 | ||
403 | acquire ( vw, vlp, vvp, iface, vtl, tr ); | |
404 | } | |
405 | ||
406 | static GtkWidget *acquire_build_menu ( VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, | |
407 | VikTrwLayer *vtl, VikTrack *track, /* both passed to acquire, although for many filters only one ness */ | |
408 | const gchar *menu_title, vik_datasource_inputtype_t inputtype ) | |
409 | { | |
410 | static gpointer pass_along[5]; | |
411 | GtkWidget *menu_item=NULL, *menu=NULL; | |
412 | GtkWidget *item=NULL; | |
413 | int i; | |
414 | ||
415 | pass_along[0] = vw; | |
416 | pass_along[1] = vlp; | |
417 | pass_along[2] = vvp; | |
418 | pass_along[3] = vtl; | |
419 | pass_along[4] = track; | |
420 | ||
421 | for ( i = 0; i < N_FILTERS; i++ ) { | |
422 | if ( filters[i]->inputtype == inputtype ) { | |
423 | if ( ! menu_item ) { /* do this just once, but return NULL if no filters */ | |
424 | menu = gtk_menu_new(); | |
425 | menu_item = gtk_menu_item_new_with_mnemonic ( menu_title ); | |
426 | gtk_menu_item_set_submenu (GTK_MENU_ITEM (menu_item), menu ); | |
427 | } | |
428 | ||
429 | item = gtk_menu_item_new_with_label ( filters[i]->window_title ); | |
430 | g_object_set_data ( G_OBJECT(item), "vik_acq_iface", (gpointer) filters[i] ); | |
431 | g_signal_connect ( G_OBJECT(item), "activate", G_CALLBACK(acquire_trwlayer_callback), pass_along ); | |
432 | gtk_menu_shell_append (GTK_MENU_SHELL (menu), item); | |
433 | gtk_widget_show ( item ); | |
434 | } | |
435 | } | |
436 | ||
437 | return menu_item; | |
438 | } | |
439 | ||
440 | GtkWidget *a_acquire_trwlayer_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrwLayer *vtl) | |
441 | { | |
442 | return acquire_build_menu ( vw, vlp, vvp, vtl, NULL, "_Filter", VIK_DATASOURCE_INPUTTYPE_TRWLAYER ); | |
443 | } | |
444 | ||
445 | GtkWidget *a_acquire_trwlayer_track_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrwLayer *vtl) | |
446 | { | |
447 | if ( filter_track == NULL ) | |
448 | return NULL; | |
449 | else { | |
450 | gchar *menu_title = g_strdup_printf ( "Filter with %s", filter_track->name ); | |
451 | GtkWidget *rv = acquire_build_menu ( vw, vlp, vvp, vtl, filter_track, | |
452 | menu_title, VIK_DATASOURCE_INPUTTYPE_TRWLAYER_TRACK ); | |
453 | g_free ( menu_title ); | |
454 | return rv; | |
455 | } | |
456 | } | |
457 | ||
458 | GtkWidget *a_acquire_track_menu (VikWindow *vw, VikLayersPanel *vlp, VikViewport *vvp, VikTrack *tr) | |
459 | { | |
460 | return acquire_build_menu ( vw, vlp, vvp, NULL, tr, "Filter", VIK_DATASOURCE_INPUTTYPE_TRACK ); | |
461 | } | |
462 | ||
463 | void a_acquire_set_filter_track ( VikTrack *tr ) | |
464 | { | |
465 | if ( filter_track ) | |
466 | vik_track_free ( filter_track ); | |
467 | ||
468 | filter_track = tr; | |
469 | vik_track_ref ( tr ); | |
470 | } |