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