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50a14534 EB |
1 | /* |
2 | * viking -- GPS Data and Topo Analyzer, Explorer, and Manager | |
3 | * | |
4 | * Copyright (C) 2003-2005, Evan Battaglia <gtoevan@gmx.net> | |
a482007a | 5 | * Copyright (C) 2005, Alex Foobarian <foobarian@gmail.com> |
50a14534 EB |
6 | * |
7 | * This program is free software; you can redistribute it and/or modify | |
8 | * it under the terms of the GNU General Public License as published by | |
9 | * the Free Software Foundation; either version 2 of the License, or | |
10 | * (at your option) any later version. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
20 | * | |
21 | */ | |
22 | ||
45acf79e MA |
23 | #ifdef HAVE_CONFIG_H |
24 | #include "config.h" | |
25 | #endif | |
26 | ||
4df1abf8 | 27 | #include <string.h> |
2f50c650 | 28 | #include <stdlib.h> |
45acf79e MA |
29 | #ifdef HAVE_SYS_TYPES_H |
30 | #include <sys/types.h> | |
31 | #endif | |
32 | #ifdef HAVE_UNISTD_H | |
33 | #include <unistd.h> | |
34 | #endif | |
4c77d5e0 GB |
35 | |
36 | #include <glib/gi18n.h> | |
37 | ||
50a14534 EB |
38 | #include "viking.h" |
39 | ||
2f50c650 | 40 | |
4df1abf8 EB |
41 | typedef struct { |
42 | gpointer clipboard; | |
c434d571 | 43 | gint pid; |
2cebc318 | 44 | VikClipboardDataType type; |
4df1abf8 EB |
45 | gint subtype; |
46 | guint16 layer_type; | |
c434d571 AF |
47 | guint len; |
48 | guint8 data[0]; | |
4df1abf8 | 49 | } vik_clipboard_t; |
50a14534 | 50 | |
4df1abf8 EB |
51 | static GtkTargetEntry target_table[] = { |
52 | { "application/viking", 0, 0 }, | |
53 | { "STRING", 0, 1 }, | |
54 | }; | |
50a14534 | 55 | |
2f50c650 AF |
56 | /***************************************************************** |
57 | ** functions which send to the clipboard client (we are owner) ** | |
58 | *****************************************************************/ | |
50a14534 | 59 | |
4df1abf8 EB |
60 | static void clip_get ( GtkClipboard *c, GtkSelectionData *selection_data, guint info, gpointer p ) |
61 | { | |
62 | vik_clipboard_t *vc = p; | |
4df1abf8 | 63 | if (info==0) { |
0a6cab71 | 64 | // g_print("clip_get: vc = %p, size = %d\n", vc, sizeof(*vc) + vc->len); |
c434d571 | 65 | gtk_selection_data_set ( selection_data, selection_data->target, 8, (void *)vc, sizeof(*vc) + vc->len ); |
50a14534 | 66 | } |
50a14534 EB |
67 | } |
68 | ||
4df1abf8 | 69 | static void clip_clear ( GtkClipboard *c, gpointer p ) |
50a14534 | 70 | { |
ddc47a46 | 71 | g_free(p); |
4df1abf8 EB |
72 | } |
73 | ||
74 | ||
2f50c650 AF |
75 | /************************************************************************** |
76 | ** functions which receive from the clipboard owner (we are the client) ** | |
77 | **************************************************************************/ | |
4df1abf8 EB |
78 | |
79 | /* our own data type */ | |
80 | static void clip_receive_viking ( GtkClipboard *c, GtkSelectionData *sd, gpointer p ) | |
81 | { | |
82 | VikLayersPanel *vlp = p; | |
83 | vik_clipboard_t *vc; | |
84 | if (sd->length == -1) { | |
4c77d5e0 | 85 | g_warning ( _("paste failed") ); |
4df1abf8 EB |
86 | return; |
87 | } | |
2f50c650 | 88 | // g_print("clip receive: target = %s, type = %s\n", gdk_atom_name(sd->target), gdk_atom_name(sd->type)); |
4df1abf8 | 89 | g_assert(!strcmp(gdk_atom_name(sd->target), target_table[0].target)); |
4df1abf8 EB |
90 | |
91 | vc = (vik_clipboard_t *)sd->data; | |
0a6cab71 AF |
92 | // g_print(" sd->data = %p, sd->length = %d, vc->len = %d\n", sd->data, sd->length, vc->len); |
93 | ||
94 | if (sd->length != sizeof(*vc) + vc->len) { | |
4c77d5e0 | 95 | g_warning ( _("wrong clipboard data size") ); |
0a6cab71 AF |
96 | return; |
97 | } | |
4df1abf8 | 98 | |
2cebc318 | 99 | if ( vc->type == VIK_CLIPBOARD_DATA_LAYER ) |
50a14534 | 100 | { |
c434d571 AF |
101 | VikLayer *new_layer = vik_layer_unmarshall ( vc->data, vc->len, vik_layers_panel_get_viewport(vlp) ); |
102 | vik_layers_panel_add_layer ( vlp, new_layer ); | |
50a14534 | 103 | } |
2cebc318 | 104 | else if ( vc->type == VIK_CLIPBOARD_DATA_SUBLAYER ) |
50a14534 EB |
105 | { |
106 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
4df1abf8 | 107 | if ( sel && sel->type == vc->layer_type) |
50a14534 | 108 | { |
4df1abf8 | 109 | if ( vik_layer_get_interface(vc->layer_type)->paste_item ) |
ddc47a46 | 110 | vik_layer_get_interface(vc->layer_type)->paste_item ( sel, vc->subtype, vc->data, vc->len); |
50a14534 EB |
111 | } |
112 | else | |
4c77d5e0 | 113 | a_dialog_error_msg_extra ( VIK_GTK_WINDOW_FROM_WIDGET(GTK_WIDGET(vlp)), |
f5f53833 | 114 | _("The clipboard contains sublayer data for %s layers. " |
4c77d5e0 GB |
115 | "You must select a layer of this type to paste the clipboard data."), |
116 | vik_layer_get_interface(vc->layer_type)->name ); | |
4df1abf8 EB |
117 | } |
118 | } | |
119 | ||
120 | ||
2f50c650 | 121 | |
317cbf8a GB |
122 | /** |
123 | * clip_parse_latlon: | |
124 | * @text: text containing LatLon data. | |
125 | * @coord: computed coordinates. | |
126 | * | |
127 | * Utility func to handle pasted text: | |
128 | * search for N dd.dddddd W dd.dddddd, N dd° dd.dddd W dd° dd.ddddd and so forth. | |
129 | * | |
130 | * Returns: TRUE if coordinates are set. | |
4df1abf8 | 131 | */ |
2f50c650 AF |
132 | static gboolean clip_parse_latlon ( const gchar *text, struct LatLon *coord ) |
133 | { | |
134 | gint latdeg, londeg; | |
135 | gdouble latm, lonm; | |
136 | gdouble lat, lon; | |
137 | gchar *cand; | |
138 | gint len, i; | |
139 | gchar *s = g_strdup(text); | |
140 | ||
141 | // g_print("parsing %s\n", s); | |
142 | ||
143 | len = strlen(s); | |
144 | ||
145 | /* remove non-digits following digits; gets rid of degree symbols or whatever people use, and | |
146 | * punctuation | |
147 | */ | |
148 | for (i=0; i<len-2; i++) { | |
149 | if (g_ascii_isdigit (s[i]) && s[i+1] != '.' && !g_ascii_isdigit (s[i+1])) { | |
150 | s[i+1] = ' '; | |
e0fca367 | 151 | if (!g_ascii_isalnum (s[i+2]) && s[i+2] != '-') { |
2f50c650 AF |
152 | s[i+2] = ' '; |
153 | } | |
154 | } | |
155 | } | |
156 | ||
157 | /* now try reading coordinates */ | |
158 | for (i=0; i<len; i++) { | |
159 | if (s[i] == 'N' || s[i] == 'S' || g_ascii_isdigit (s[i])) { | |
160 | gchar latc[2] = "SN"; | |
161 | gchar lonc[2] = "WE"; | |
162 | gint j, k; | |
163 | cand = s+i; | |
164 | ||
2f50c650 AF |
165 | for (j=0; j<2; j++) { |
166 | for (k=0; k<2; k++) { | |
167 | gchar fmt1[] = "N %d%*[ ]%lf W %d%*[ ]%lf"; | |
168 | gchar fmt2[] = "%d%*[ ]%lf N %d%*[ ]%lf W"; | |
169 | gchar fmt3[] = "N %lf W %lf"; | |
170 | gchar fmt4[] = "%lf N %lf W"; | |
171 | ||
172 | fmt1[0] = latc[j]; fmt1[13] = lonc[k]; | |
173 | fmt2[11] = latc[j]; fmt2[24] = lonc[k]; | |
174 | fmt3[0] = latc[j]; fmt3[6] = lonc[k]; | |
175 | fmt4[4] = latc[j]; fmt4[10] = lonc[k]; | |
176 | ||
177 | if (sscanf(cand, fmt1, &latdeg, &latm, &londeg, &lonm) == 4 || | |
178 | sscanf(cand, fmt2, &latdeg, &latm, &londeg, &lonm) == 4) { | |
179 | lat = (j*2-1) * (latdeg + latm / 60); | |
180 | lon = (k*2-1) * (londeg + lonm / 60); | |
181 | break; | |
182 | } | |
183 | if (sscanf(cand, fmt3, &lat, &lon) == 2 || | |
184 | sscanf(cand, fmt4, &lat, &lon) == 2) { | |
185 | lat *= (j*2-1); | |
186 | lon *= (k*2-1); | |
187 | break; | |
188 | } | |
189 | } | |
190 | if (k!=2) break; | |
191 | } | |
192 | if (j!=2) break; | |
193 | ||
194 | if (sscanf(cand, "%d%*[ ]%lf %d%*[ ]%lf", &latdeg, &latm, &londeg, &lonm) == 4) { | |
195 | lat = latdeg/abs(latdeg) * (abs(latdeg) + latm / 60); | |
196 | lon = londeg/abs(londeg) * (abs(londeg) + lonm / 60); | |
197 | break; | |
198 | } | |
199 | if (sscanf(cand, "%lf %lf", &lat, &lon) == 2) { | |
200 | break; | |
201 | } | |
202 | } | |
203 | } | |
204 | g_free(s); | |
205 | ||
7680e9fe AF |
206 | /* did we get to the end without actually finding a coordinate? */ |
207 | if (i<len && lat >= -90.0 && lat <= 90.0 && lon >= -180.0 && lon <= 180.0) { | |
2f50c650 AF |
208 | coord->lat = lat; |
209 | coord->lon = lon; | |
210 | return TRUE; | |
2f50c650 | 211 | } |
7680e9fe | 212 | return FALSE; |
2f50c650 AF |
213 | } |
214 | ||
215 | static void clip_add_wp(VikLayersPanel *vlp, struct LatLon *coord) | |
216 | { | |
217 | VikCoord vc; | |
218 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
219 | ||
220 | ||
221 | vik_coord_load_from_latlon ( &vc, VIK_COORD_LATLON, coord ); | |
222 | ||
223 | if (sel && sel->type == VIK_LAYER_TRW) { | |
224 | vik_trw_layer_new_waypoint ( VIK_TRW_LAYER(sel), VIK_GTK_WINDOW_FROM_LAYER(sel), &vc ); | |
225 | } else { | |
4c77d5e0 | 226 | a_dialog_error_msg_extra ( VIK_GTK_WINDOW_FROM_WIDGET(GTK_WIDGET(vlp)), _("In order to paste a waypoint, please select an appropriate layer to paste into."), NULL); |
2f50c650 AF |
227 | } |
228 | } | |
229 | ||
4df1abf8 EB |
230 | static void clip_receive_text (GtkClipboard *c, const gchar *text, gpointer p) |
231 | { | |
232 | VikLayersPanel *vlp = p; | |
2f50c650 | 233 | struct LatLon coord; |
e0fca367 | 234 | // g_print("got text: %s\n", text); |
2f50c650 AF |
235 | if (clip_parse_latlon(text, &coord)) { |
236 | clip_add_wp(vlp, &coord); | |
237 | } | |
4df1abf8 EB |
238 | } |
239 | ||
4df1abf8 EB |
240 | static void clip_receive_html ( GtkClipboard *c, GtkSelectionData *sd, gpointer p ) |
241 | { | |
242 | VikLayersPanel *vlp = p; | |
00bb93da | 243 | gsize r, w; |
4df1abf8 | 244 | GError *err = NULL; |
2f50c650 AF |
245 | gchar *s, *span; |
246 | gint tag = 0, i; | |
247 | struct LatLon coord; | |
4df1abf8 EB |
248 | |
249 | if (sd->length == -1) { | |
250 | return; | |
251 | } | |
252 | ||
2f50c650 | 253 | /* - copying from Mozilla seems to give html in UTF-16. */ |
ddc47a46 | 254 | if (!(s = g_convert ( (gchar *)sd->data, sd->length, "UTF-8", "UTF-16", &r, &w, &err))) { |
4df1abf8 EB |
255 | return; |
256 | } | |
2f50c650 AF |
257 | // g_print("html is %d bytes long: %s\n", sd->length, s); |
258 | ||
259 | /* scrape a coordinate pasted from a geocaching.com page: look for a | |
260 | * telltale tag if possible, and then remove tags | |
261 | */ | |
262 | if (!(span = g_strstr_len(s, w, "<span id=\"LatLon\">"))) { | |
263 | span = s; | |
264 | } | |
265 | for (i=0; i<strlen(span); i++) { | |
266 | gchar c = span[i]; | |
267 | if (c == '<') { | |
268 | tag++; | |
269 | } | |
270 | if (tag>0) { | |
271 | span[i] = ' '; | |
272 | } | |
273 | if (c == '>') { | |
274 | if (tag>0) tag--; | |
275 | } | |
276 | } | |
277 | if (clip_parse_latlon(span, &coord)) { | |
278 | clip_add_wp(vlp, &coord); | |
279 | } | |
280 | ||
4df1abf8 EB |
281 | g_free(s); |
282 | } | |
283 | ||
317cbf8a GB |
284 | /** |
285 | * clip_receive_targets: | |
286 | * | |
287 | * Deal with various data types a clipboard may hold. | |
4df1abf8 EB |
288 | */ |
289 | void clip_receive_targets ( GtkClipboard *c, GdkAtom *a, gint n, gpointer p ) | |
290 | { | |
291 | VikLayersPanel *vlp = p; | |
292 | gint i; | |
293 | ||
2f50c650 | 294 | /* g_print("got targets\n"); */ |
4df1abf8 | 295 | for (i=0; i<n; i++) { |
2f50c650 | 296 | /* g_print(" ""%s""\n", gdk_atom_name(a[i])); */ |
4df1abf8 EB |
297 | if (!strcmp(gdk_atom_name(a[i]), "text/html")) { |
298 | gtk_clipboard_request_contents ( c, gdk_atom_intern("text/html", TRUE), clip_receive_html, vlp ); | |
299 | break; | |
300 | } | |
301 | if (a[i] == GDK_TARGET_STRING) { | |
302 | gtk_clipboard_request_text ( c, clip_receive_text, vlp ); | |
303 | break; | |
304 | } | |
305 | if (!strcmp(gdk_atom_name(a[i]), "application/viking")) { | |
306 | gtk_clipboard_request_contents ( c, gdk_atom_intern("application/viking", TRUE), clip_receive_viking, vlp ); | |
307 | break; | |
308 | } | |
50a14534 | 309 | } |
4df1abf8 EB |
310 | } |
311 | ||
312 | /********************************************************************************* | |
313 | ** public functions ** | |
314 | *********************************************************************************/ | |
315 | ||
317cbf8a GB |
316 | /** |
317 | * a_clipboard_copy_selected: | |
318 | * | |
319 | * Make a copy of selected object and associate ourselves with the clipboard. | |
4df1abf8 | 320 | */ |
2cebc318 | 321 | void a_clipboard_copy_selected ( VikLayersPanel *vlp ) |
4df1abf8 EB |
322 | { |
323 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
324 | GtkTreeIter iter; | |
2cebc318 QT |
325 | VikClipboardDataType type; |
326 | guint16 layer_type = 0; | |
327 | gint subtype = 0; | |
ddc47a46 | 328 | guint8 *data = NULL; |
c434d571 | 329 | guint len; |
4df1abf8 EB |
330 | |
331 | if ( ! sel ) | |
332 | return; | |
333 | ||
334 | vik_treeview_get_selected_iter ( sel->vt, &iter ); | |
f5f53833 | 335 | layer_type = sel->type; |
4df1abf8 | 336 | |
ddc47a46 | 337 | if ( vik_treeview_item_get_type ( sel->vt, &iter ) == VIK_TREEVIEW_TYPE_SUBLAYER ) { |
2cebc318 | 338 | type = VIK_CLIPBOARD_DATA_SUBLAYER; |
2cebc318 QT |
339 | if ( vik_layer_get_interface(layer_type)->copy_item) { |
340 | subtype = vik_treeview_item_get_data(sel->vt, &iter); | |
341 | vik_layer_get_interface(layer_type)->copy_item(sel, subtype, vik_treeview_item_get_pointer(sel->vt, &iter), &data, &len ); | |
c434d571 | 342 | } |
4df1abf8 EB |
343 | } |
344 | else | |
345 | { | |
494eb388 | 346 | gint ilen; |
2cebc318 | 347 | type = VIK_CLIPBOARD_DATA_LAYER; |
494eb388 QT |
348 | vik_layer_marshall ( sel, &data, &ilen ); |
349 | len = ilen; | |
4df1abf8 | 350 | } |
ddc47a46 | 351 | |
2cebc318 QT |
352 | if (data) |
353 | a_clipboard_copy( type, layer_type, subtype, len, data); | |
ddc47a46 | 354 | |
2cebc318 | 355 | } |
ddc47a46 | 356 | |
2cebc318 QT |
357 | void a_clipboard_copy( VikClipboardDataType type, guint16 layer_type, gint subtype, guint len, guint8 * data) |
358 | { | |
359 | vik_clipboard_t * vc = g_malloc(sizeof(*vc) + len); | |
360 | GtkClipboard *c = gtk_clipboard_get ( GDK_SELECTION_CLIPBOARD ); | |
ddc47a46 | 361 | |
2cebc318 QT |
362 | vc->type = type; |
363 | vc->layer_type = layer_type; | |
364 | vc->subtype = subtype; | |
365 | vc->len = len; | |
366 | memcpy(vc->data, data, len); | |
367 | g_free(data); | |
368 | vc->pid = getpid(); | |
369 | gtk_clipboard_set_with_data ( c, target_table, G_N_ELEMENTS(target_table), clip_get, clip_clear, vc ); | |
4df1abf8 EB |
370 | } |
371 | ||
317cbf8a GB |
372 | /** |
373 | * a_clipboard_paste: | |
374 | * | |
375 | * To deal with multiple data types, we first request the type of data on the clipboard, | |
376 | * and handle them in the callback. | |
4df1abf8 EB |
377 | */ |
378 | gboolean a_clipboard_paste ( VikLayersPanel *vlp ) | |
379 | { | |
380 | GtkClipboard *c = gtk_clipboard_get ( GDK_SELECTION_CLIPBOARD ); | |
381 | gtk_clipboard_request_targets ( c, clip_receive_targets, vlp ); | |
382 | return TRUE; | |
50a14534 | 383 | } |
2f50c650 | 384 |