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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> | |
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 | } |
4df1abf8 | 54 | if (info==1) { |
2cebc318 | 55 | if (vc->type == VIK_CLIPBOARD_DATA_LAYER) { |
4df1abf8 EB |
56 | gtk_selection_data_set_text ( selection_data, VIK_LAYER(vc->clipboard)->name, -1 ); |
57 | } | |
50a14534 EB |
58 | } |
59 | } | |
60 | ||
4df1abf8 | 61 | static void clip_clear ( GtkClipboard *c, gpointer p ) |
50a14534 | 62 | { |
ddc47a46 | 63 | g_free(p); |
4df1abf8 EB |
64 | } |
65 | ||
66 | ||
2f50c650 AF |
67 | /************************************************************************** |
68 | ** functions which receive from the clipboard owner (we are the client) ** | |
69 | **************************************************************************/ | |
4df1abf8 EB |
70 | |
71 | /* our own data type */ | |
72 | static void clip_receive_viking ( GtkClipboard *c, GtkSelectionData *sd, gpointer p ) | |
73 | { | |
74 | VikLayersPanel *vlp = p; | |
75 | vik_clipboard_t *vc; | |
76 | if (sd->length == -1) { | |
0a6cab71 | 77 | g_warning ( "paste failed" ); |
4df1abf8 EB |
78 | return; |
79 | } | |
2f50c650 | 80 | // g_print("clip receive: target = %s, type = %s\n", gdk_atom_name(sd->target), gdk_atom_name(sd->type)); |
4df1abf8 | 81 | g_assert(!strcmp(gdk_atom_name(sd->target), target_table[0].target)); |
4df1abf8 EB |
82 | |
83 | vc = (vik_clipboard_t *)sd->data; | |
0a6cab71 AF |
84 | // g_print(" sd->data = %p, sd->length = %d, vc->len = %d\n", sd->data, sd->length, vc->len); |
85 | ||
86 | if (sd->length != sizeof(*vc) + vc->len) { | |
87 | g_warning ( "wrong clipboard data size" ); | |
88 | return; | |
89 | } | |
4df1abf8 | 90 | |
2cebc318 | 91 | if ( vc->type == VIK_CLIPBOARD_DATA_LAYER ) |
50a14534 | 92 | { |
c434d571 AF |
93 | VikLayer *new_layer = vik_layer_unmarshall ( vc->data, vc->len, vik_layers_panel_get_viewport(vlp) ); |
94 | vik_layers_panel_add_layer ( vlp, new_layer ); | |
50a14534 | 95 | } |
2cebc318 | 96 | else if ( vc->type == VIK_CLIPBOARD_DATA_SUBLAYER ) |
50a14534 EB |
97 | { |
98 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
4df1abf8 | 99 | if ( sel && sel->type == vc->layer_type) |
50a14534 | 100 | { |
4df1abf8 | 101 | if ( vik_layer_get_interface(vc->layer_type)->paste_item ) |
ddc47a46 | 102 | vik_layer_get_interface(vc->layer_type)->paste_item ( sel, vc->subtype, vc->data, vc->len); |
50a14534 EB |
103 | } |
104 | else | |
4df1abf8 EB |
105 | 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 ); |
106 | } | |
107 | } | |
108 | ||
109 | ||
2f50c650 | 110 | |
4df1abf8 | 111 | /* |
2f50c650 AF |
112 | * utility func to handle pasted text: |
113 | * search for N dd.dddddd W dd.dddddd, N dd° dd.dddd W dd° dd.ddddd and so forth | |
4df1abf8 | 114 | */ |
2f50c650 AF |
115 | static gboolean clip_parse_latlon ( const gchar *text, struct LatLon *coord ) |
116 | { | |
117 | gint latdeg, londeg; | |
118 | gdouble latm, lonm; | |
119 | gdouble lat, lon; | |
120 | gchar *cand; | |
121 | gint len, i; | |
122 | gchar *s = g_strdup(text); | |
123 | ||
124 | // g_print("parsing %s\n", s); | |
125 | ||
126 | len = strlen(s); | |
127 | ||
128 | /* remove non-digits following digits; gets rid of degree symbols or whatever people use, and | |
129 | * punctuation | |
130 | */ | |
131 | for (i=0; i<len-2; i++) { | |
132 | if (g_ascii_isdigit (s[i]) && s[i+1] != '.' && !g_ascii_isdigit (s[i+1])) { | |
133 | s[i+1] = ' '; | |
e0fca367 | 134 | if (!g_ascii_isalnum (s[i+2]) && s[i+2] != '-') { |
2f50c650 AF |
135 | s[i+2] = ' '; |
136 | } | |
137 | } | |
138 | } | |
139 | ||
140 | /* now try reading coordinates */ | |
141 | for (i=0; i<len; i++) { | |
142 | if (s[i] == 'N' || s[i] == 'S' || g_ascii_isdigit (s[i])) { | |
143 | gchar latc[2] = "SN"; | |
144 | gchar lonc[2] = "WE"; | |
145 | gint j, k; | |
146 | cand = s+i; | |
147 | ||
148 | // printf("Trying >>>>> %s\n", cand); | |
149 | ||
150 | for (j=0; j<2; j++) { | |
151 | for (k=0; k<2; k++) { | |
152 | gchar fmt1[] = "N %d%*[ ]%lf W %d%*[ ]%lf"; | |
153 | gchar fmt2[] = "%d%*[ ]%lf N %d%*[ ]%lf W"; | |
154 | gchar fmt3[] = "N %lf W %lf"; | |
155 | gchar fmt4[] = "%lf N %lf W"; | |
156 | ||
157 | fmt1[0] = latc[j]; fmt1[13] = lonc[k]; | |
158 | fmt2[11] = latc[j]; fmt2[24] = lonc[k]; | |
159 | fmt3[0] = latc[j]; fmt3[6] = lonc[k]; | |
160 | fmt4[4] = latc[j]; fmt4[10] = lonc[k]; | |
161 | ||
162 | if (sscanf(cand, fmt1, &latdeg, &latm, &londeg, &lonm) == 4 || | |
163 | sscanf(cand, fmt2, &latdeg, &latm, &londeg, &lonm) == 4) { | |
164 | lat = (j*2-1) * (latdeg + latm / 60); | |
165 | lon = (k*2-1) * (londeg + lonm / 60); | |
166 | break; | |
167 | } | |
168 | if (sscanf(cand, fmt3, &lat, &lon) == 2 || | |
169 | sscanf(cand, fmt4, &lat, &lon) == 2) { | |
170 | lat *= (j*2-1); | |
171 | lon *= (k*2-1); | |
172 | break; | |
173 | } | |
174 | } | |
175 | if (k!=2) break; | |
176 | } | |
177 | if (j!=2) break; | |
178 | ||
179 | if (sscanf(cand, "%d%*[ ]%lf %d%*[ ]%lf", &latdeg, &latm, &londeg, &lonm) == 4) { | |
180 | lat = latdeg/abs(latdeg) * (abs(latdeg) + latm / 60); | |
181 | lon = londeg/abs(londeg) * (abs(londeg) + lonm / 60); | |
182 | break; | |
183 | } | |
184 | if (sscanf(cand, "%lf %lf", &lat, &lon) == 2) { | |
185 | break; | |
186 | } | |
187 | } | |
188 | } | |
189 | g_free(s); | |
190 | ||
7680e9fe AF |
191 | /* did we get to the end without actually finding a coordinate? */ |
192 | if (i<len && lat >= -90.0 && lat <= 90.0 && lon >= -180.0 && lon <= 180.0) { | |
2f50c650 AF |
193 | coord->lat = lat; |
194 | coord->lon = lon; | |
195 | return TRUE; | |
2f50c650 | 196 | } |
7680e9fe | 197 | return FALSE; |
2f50c650 AF |
198 | } |
199 | ||
200 | static void clip_add_wp(VikLayersPanel *vlp, struct LatLon *coord) | |
201 | { | |
202 | VikCoord vc; | |
203 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
204 | ||
205 | ||
206 | vik_coord_load_from_latlon ( &vc, VIK_COORD_LATLON, coord ); | |
207 | ||
208 | if (sel && sel->type == VIK_LAYER_TRW) { | |
209 | vik_trw_layer_new_waypoint ( VIK_TRW_LAYER(sel), VIK_GTK_WINDOW_FROM_LAYER(sel), &vc ); | |
210 | } else { | |
211 | 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); | |
212 | } | |
213 | } | |
214 | ||
4df1abf8 EB |
215 | static void clip_receive_text (GtkClipboard *c, const gchar *text, gpointer p) |
216 | { | |
217 | VikLayersPanel *vlp = p; | |
2f50c650 | 218 | struct LatLon coord; |
e0fca367 | 219 | // g_print("got text: %s\n", text); |
2f50c650 AF |
220 | if (clip_parse_latlon(text, &coord)) { |
221 | clip_add_wp(vlp, &coord); | |
222 | } | |
4df1abf8 EB |
223 | } |
224 | ||
4df1abf8 EB |
225 | static void clip_receive_html ( GtkClipboard *c, GtkSelectionData *sd, gpointer p ) |
226 | { | |
227 | VikLayersPanel *vlp = p; | |
ddc47a46 | 228 | guint r, w; |
4df1abf8 | 229 | GError *err = NULL; |
2f50c650 AF |
230 | gchar *s, *span; |
231 | gint tag = 0, i; | |
232 | struct LatLon coord; | |
4df1abf8 EB |
233 | |
234 | if (sd->length == -1) { | |
235 | return; | |
236 | } | |
237 | ||
2f50c650 | 238 | /* - copying from Mozilla seems to give html in UTF-16. */ |
ddc47a46 | 239 | if (!(s = g_convert ( (gchar *)sd->data, sd->length, "UTF-8", "UTF-16", &r, &w, &err))) { |
4df1abf8 EB |
240 | return; |
241 | } | |
2f50c650 AF |
242 | // g_print("html is %d bytes long: %s\n", sd->length, s); |
243 | ||
244 | /* scrape a coordinate pasted from a geocaching.com page: look for a | |
245 | * telltale tag if possible, and then remove tags | |
246 | */ | |
247 | if (!(span = g_strstr_len(s, w, "<span id=\"LatLon\">"))) { | |
248 | span = s; | |
249 | } | |
250 | for (i=0; i<strlen(span); i++) { | |
251 | gchar c = span[i]; | |
252 | if (c == '<') { | |
253 | tag++; | |
254 | } | |
255 | if (tag>0) { | |
256 | span[i] = ' '; | |
257 | } | |
258 | if (c == '>') { | |
259 | if (tag>0) tag--; | |
260 | } | |
261 | } | |
262 | if (clip_parse_latlon(span, &coord)) { | |
263 | clip_add_wp(vlp, &coord); | |
264 | } | |
265 | ||
4df1abf8 EB |
266 | g_free(s); |
267 | } | |
268 | ||
269 | /* | |
270 | * deal with various data types a clipboard may hold | |
271 | */ | |
272 | void clip_receive_targets ( GtkClipboard *c, GdkAtom *a, gint n, gpointer p ) | |
273 | { | |
274 | VikLayersPanel *vlp = p; | |
275 | gint i; | |
276 | ||
2f50c650 | 277 | /* g_print("got targets\n"); */ |
4df1abf8 | 278 | for (i=0; i<n; i++) { |
2f50c650 | 279 | /* g_print(" ""%s""\n", gdk_atom_name(a[i])); */ |
4df1abf8 EB |
280 | if (!strcmp(gdk_atom_name(a[i]), "text/html")) { |
281 | gtk_clipboard_request_contents ( c, gdk_atom_intern("text/html", TRUE), clip_receive_html, vlp ); | |
282 | break; | |
283 | } | |
284 | if (a[i] == GDK_TARGET_STRING) { | |
285 | gtk_clipboard_request_text ( c, clip_receive_text, vlp ); | |
286 | break; | |
287 | } | |
288 | if (!strcmp(gdk_atom_name(a[i]), "application/viking")) { | |
289 | gtk_clipboard_request_contents ( c, gdk_atom_intern("application/viking", TRUE), clip_receive_viking, vlp ); | |
290 | break; | |
291 | } | |
50a14534 | 292 | } |
4df1abf8 EB |
293 | } |
294 | ||
295 | /********************************************************************************* | |
296 | ** public functions ** | |
297 | *********************************************************************************/ | |
298 | ||
299 | /* | |
300 | * make a copy of selected object and associate ourselves with the clipboard | |
301 | */ | |
2cebc318 | 302 | void a_clipboard_copy_selected ( VikLayersPanel *vlp ) |
4df1abf8 EB |
303 | { |
304 | VikLayer *sel = vik_layers_panel_get_selected ( vlp ); | |
305 | GtkTreeIter iter; | |
2cebc318 QT |
306 | VikClipboardDataType type; |
307 | guint16 layer_type = 0; | |
308 | gint subtype = 0; | |
ddc47a46 | 309 | guint8 *data = NULL; |
c434d571 | 310 | guint len; |
4df1abf8 EB |
311 | |
312 | if ( ! sel ) | |
313 | return; | |
314 | ||
315 | vik_treeview_get_selected_iter ( sel->vt, &iter ); | |
316 | ||
ddc47a46 | 317 | if ( vik_treeview_item_get_type ( sel->vt, &iter ) == VIK_TREEVIEW_TYPE_SUBLAYER ) { |
2cebc318 QT |
318 | type = VIK_CLIPBOARD_DATA_SUBLAYER; |
319 | layer_type = sel->type; | |
320 | if ( vik_layer_get_interface(layer_type)->copy_item) { | |
321 | subtype = vik_treeview_item_get_data(sel->vt, &iter); | |
322 | vik_layer_get_interface(layer_type)->copy_item(sel, subtype, vik_treeview_item_get_pointer(sel->vt, &iter), &data, &len ); | |
c434d571 | 323 | } |
4df1abf8 EB |
324 | } |
325 | else | |
326 | { | |
2cebc318 | 327 | type = VIK_CLIPBOARD_DATA_LAYER; |
c434d571 | 328 | vik_layer_marshall ( sel, &data, &len ); |
4df1abf8 | 329 | } |
ddc47a46 | 330 | |
2cebc318 QT |
331 | if (data) |
332 | a_clipboard_copy( type, layer_type, subtype, len, data); | |
ddc47a46 | 333 | |
2cebc318 | 334 | } |
ddc47a46 | 335 | |
2cebc318 QT |
336 | void a_clipboard_copy( VikClipboardDataType type, guint16 layer_type, gint subtype, guint len, guint8 * data) |
337 | { | |
338 | vik_clipboard_t * vc = g_malloc(sizeof(*vc) + len); | |
339 | GtkClipboard *c = gtk_clipboard_get ( GDK_SELECTION_CLIPBOARD ); | |
ddc47a46 | 340 | |
2cebc318 QT |
341 | vc->type = type; |
342 | vc->layer_type = layer_type; | |
343 | vc->subtype = subtype; | |
344 | vc->len = len; | |
345 | memcpy(vc->data, data, len); | |
346 | g_free(data); | |
347 | vc->pid = getpid(); | |
348 | gtk_clipboard_set_with_data ( c, target_table, G_N_ELEMENTS(target_table), clip_get, clip_clear, vc ); | |
4df1abf8 EB |
349 | } |
350 | ||
351 | /* | |
352 | * to deal with multiple data types, we first request the type of data on the clipboard, | |
353 | * and handle them in the callback | |
354 | */ | |
355 | gboolean a_clipboard_paste ( VikLayersPanel *vlp ) | |
356 | { | |
357 | GtkClipboard *c = gtk_clipboard_get ( GDK_SELECTION_CLIPBOARD ); | |
358 | gtk_clipboard_request_targets ( c, clip_receive_targets, vlp ); | |
359 | return TRUE; | |
50a14534 | 360 | } |
2f50c650 | 361 |