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ad0a8c2d 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 | */ | |
4c77d5e0 GB |
21 | #ifdef HAVE_CONFIG_H |
22 | #include "config.h" | |
23 | #endif | |
ad0a8c2d | 24 | #include <math.h> |
0c1044e9 EB |
25 | #include <sys/types.h> |
26 | #include <sys/stat.h> | |
27 | #include <string.h> | |
8c721f83 | 28 | #include <stdlib.h> |
4c77d5e0 | 29 | #include <glib/gi18n.h> |
ad0a8c2d | 30 | |
8c721f83 | 31 | #include "config.h" |
ad0a8c2d EB |
32 | #include "globals.h" |
33 | #include "coords.h" | |
34 | #include "vikcoord.h" | |
35 | #include "download.h" | |
0c1044e9 | 36 | #include "background.h" |
ad0a8c2d EB |
37 | #include "vikwaypoint.h" |
38 | #include "viktrack.h" | |
39 | #include "vikviewport.h" | |
40 | #include "viktreeview.h" | |
41 | #include "viklayer.h" | |
42 | #include "vikaggregatelayer.h" | |
43 | #include "viklayerspanel.h" | |
44 | #include "vikdemlayer.h" | |
45 | #include "vikdemlayer_pixmap.h" | |
0c1044e9 | 46 | #include "vikmapslayer.h" |
8c721f83 | 47 | #include "dialog.h" |
ad0a8c2d EB |
48 | |
49 | #include "dem.h" | |
50 | #include "dems.h" | |
51 | ||
bce3a7b0 EB |
52 | #include "icons/icons.h" |
53 | ||
8c721f83 | 54 | #define MAPS_CACHE_DIR maps_layer_default_dir() |
0c1044e9 | 55 | |
0e25c0d0 | 56 | #define SRTM_CACHE_TEMPLATE "%ssrtm3-%s%s%c%02d%c%03d.hgt.zip" |
8c721f83 EB |
57 | #define SRTM_FTP_SITE "e0srp01u.ecs.nasa.gov" |
58 | #define SRTM_FTP_URI "/srtm/version2/SRTM3/" | |
59 | ||
60 | #ifdef VIK_CONFIG_DEM24K | |
61 | #define DEM24K_DOWNLOAD_SCRIPT "dem24k.pl" | |
62 | #endif | |
63 | ||
0c1044e9 | 64 | |
ad0a8c2d EB |
65 | static void dem_layer_marshall( VikDEMLayer *vdl, guint8 **data, gint *len ); |
66 | static VikDEMLayer *dem_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp ); | |
67 | static gboolean dem_layer_set_param ( VikDEMLayer *vdl, guint16 id, VikLayerParamData data, VikViewport *vp ); | |
68 | static VikLayerParamData dem_layer_get_param ( VikDEMLayer *vdl, guint16 id ); | |
69 | static void dem_layer_update_gc ( VikDEMLayer *vdl, VikViewport *vp, const gchar *color ); | |
07059501 | 70 | static void dem_layer_post_read ( VikLayer *vl, VikViewport *vp, gboolean from_file ); |
8c721f83 EB |
71 | static void srtm_draw_existence ( VikViewport *vp ); |
72 | ||
73 | #ifdef VIK_CONFIG_DEM24K | |
74 | static void dem24k_draw_existence ( VikViewport *vp ); | |
75 | #endif | |
ad0a8c2d EB |
76 | |
77 | static VikLayerParamScale param_scales[] = { | |
415302f4 | 78 | { 1, 10000, 10, 1 }, |
ad0a8c2d EB |
79 | { 1, 10000, 10, 1 }, |
80 | { 1, 10, 1, 0 }, | |
81 | }; | |
82 | ||
8c721f83 EB |
83 | static gchar *params_source[] = { |
84 | "SRTM Global 90m (3 arcsec)", | |
85 | #ifdef VIK_CONFIG_DEM24K | |
86 | "USA 10m (USGS 24k)", | |
87 | #endif | |
88 | "None", | |
4235f369 | 89 | NULL |
8c721f83 EB |
90 | }; |
91 | ||
92 | enum { DEM_SOURCE_SRTM, | |
93 | #ifdef VIK_CONFIG_DEM24K | |
94 | DEM_SOURCE_DEM24K, | |
95 | #endif | |
96 | DEM_SOURCE_NONE, | |
97 | }; | |
98 | ||
ad0a8c2d | 99 | static VikLayerParam dem_layer_params[] = { |
4c77d5e0 GB |
100 | { "files", VIK_LAYER_PARAM_STRING_LIST, VIK_LAYER_GROUP_NONE, N_("DEM Files:"), VIK_LAYER_WIDGET_FILELIST }, |
101 | { "source", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Download Source:"), VIK_LAYER_WIDGET_RADIOGROUP_STATIC, params_source, NULL }, | |
102 | { "color", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Color:"), VIK_LAYER_WIDGET_ENTRY }, | |
103 | { "min_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, N_("Min Elev:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 }, | |
104 | { "max_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, N_("Max Elev:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 }, | |
105 | { "line_thickness", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Line Thickness:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 1 }, | |
ad0a8c2d EB |
106 | }; |
107 | ||
8c721f83 | 108 | |
415302f4 | 109 | enum { PARAM_FILES=0, PARAM_SOURCE, PARAM_COLOR, PARAM_MIN_ELEV, PARAM_MAX_ELEV, PARAM_LINE_THICKNESS, NUM_PARAMS }; |
8c721f83 | 110 | |
0c1044e9 EB |
111 | static gpointer dem_layer_download_create ( VikWindow *vw, VikViewport *vvp); |
112 | static gboolean dem_layer_download_release ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ); | |
113 | static gboolean dem_layer_download_click ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ); | |
114 | ||
115 | static VikToolInterface dem_tools[] = { | |
4c77d5e0 | 116 | { N_("DEM Download/Import"), (VikToolConstructorFunc) dem_layer_download_create, NULL, NULL, NULL, |
bce3a7b0 | 117 | (VikToolMouseFunc) dem_layer_download_click, NULL, (VikToolMouseFunc) dem_layer_download_release, |
f2f2f7bf | 118 | (VikToolKeyFunc) NULL, GDK_CURSOR_IS_PIXMAP, &cursor_demdl }, |
0c1044e9 EB |
119 | }; |
120 | ||
121 | ||
ad0a8c2d EB |
122 | /* |
123 | */ | |
124 | ||
ad0a8c2d EB |
125 | static gchar *dem_colors[] = { |
126 | "#0000FF", | |
127 | "#9b793c", | |
128 | "#9c7d40", | |
129 | "#9d8144", | |
130 | "#9e8549", | |
131 | "#9f894d", | |
132 | "#a08d51", | |
133 | "#a29156", | |
134 | "#a3955a", | |
135 | "#a4995e", | |
136 | "#a69d63", | |
137 | "#a89f65", | |
138 | "#aaa267", | |
139 | "#ada569", | |
140 | "#afa76b", | |
141 | "#b1aa6d", | |
142 | "#b4ad6f", | |
143 | "#b6b071", | |
144 | "#b9b373", | |
145 | "#bcb676", | |
146 | "#beb978", | |
147 | "#c0bc7a", | |
148 | "#c2c07d", | |
149 | "#c4c37f", | |
150 | "#c6c681", | |
151 | "#c8ca84", | |
152 | "#cacd86", | |
153 | "#ccd188", | |
154 | "#cfd58b", | |
155 | "#c2ce84", | |
156 | "#b5c87e", | |
157 | "#a9c278", | |
158 | "#9cbb71", | |
159 | "#8fb56b", | |
160 | "#83af65", | |
161 | "#76a95e", | |
162 | "#6aa358", | |
163 | "#5e9d52", | |
164 | "#63a055", | |
165 | "#69a458", | |
166 | "#6fa85c", | |
167 | "#74ac5f", | |
168 | "#7ab063", | |
169 | "#80b467", | |
170 | "#86b86a", | |
171 | "#8cbc6e", | |
172 | "#92c072", | |
173 | "#94c175", | |
174 | "#97c278", | |
175 | "#9ac47c", | |
176 | "#9cc57f", | |
177 | "#9fc682", | |
178 | "#a2c886", | |
179 | "#a4c989", | |
180 | "#a7cb8d", | |
181 | "#aacd91", | |
182 | "#afce99", | |
183 | "#b5d0a1", | |
184 | "#bbd2aa", | |
185 | "#c0d3b2", | |
186 | "#c6d5ba", | |
187 | "#ccd7c3", | |
188 | "#d1d9cb", | |
189 | "#d7dbd4", | |
190 | "#DDDDDD", | |
191 | "#e0e0e0", | |
192 | "#e4e4e4", | |
193 | "#e8e8e8", | |
194 | "#ebebeb", | |
195 | "#efefef", | |
196 | "#f3f3f3", | |
197 | "#f7f7f7", | |
198 | "#fbfbfb", | |
199 | "#ffffff" | |
200 | }; | |
201 | ||
202 | /* | |
203 | "#9b793c", | |
204 | "#9e8549", | |
205 | "#a29156", | |
206 | "#a69d63", | |
207 | "#ada569", | |
208 | "#b4ad6f", | |
209 | "#bcb676", | |
210 | "#c2c07d", | |
211 | "#c8ca84", | |
212 | "#cfd58b", | |
213 | "#a9c278", | |
214 | "#83af65", | |
215 | "#5e9d52", | |
216 | "#6fa85c", | |
217 | "#80b467", | |
218 | "#92c072", | |
219 | "#9ac47c", | |
220 | "#a2c886", | |
221 | "#aacd91", | |
222 | "#bbd2aa", | |
223 | "#ccd7c3", | |
224 | "#DDDDDD", | |
225 | "#e8e8e8", | |
226 | "#f3f3f3", | |
227 | "#FFFFFF" | |
228 | }; | |
229 | */ | |
230 | ||
fa86f1c0 | 231 | static const guint DEM_N_COLORS = sizeof(dem_colors)/sizeof(dem_colors[0]); |
ad0a8c2d | 232 | |
ad0a8c2d EB |
233 | |
234 | VikLayerInterface vik_dem_layer_interface = { | |
235 | "DEM", | |
236 | &demlayer_pixbuf, | |
237 | ||
0c1044e9 EB |
238 | dem_tools, |
239 | sizeof(dem_tools) / sizeof(dem_tools[0]), | |
ad0a8c2d EB |
240 | |
241 | dem_layer_params, | |
242 | NUM_PARAMS, | |
243 | NULL, | |
244 | 0, | |
245 | ||
246 | VIK_MENU_ITEM_ALL, | |
247 | ||
248 | (VikLayerFuncCreate) vik_dem_layer_create, | |
249 | (VikLayerFuncRealize) NULL, | |
94933cb8 | 250 | dem_layer_post_read, |
ad0a8c2d EB |
251 | (VikLayerFuncFree) vik_dem_layer_free, |
252 | ||
253 | (VikLayerFuncProperties) NULL, | |
254 | (VikLayerFuncDraw) vik_dem_layer_draw, | |
255 | (VikLayerFuncChangeCoordMode) NULL, | |
256 | ||
257 | (VikLayerFuncSetMenuItemsSelection) NULL, | |
258 | (VikLayerFuncGetMenuItemsSelection) NULL, | |
259 | ||
260 | (VikLayerFuncAddMenuItems) NULL, | |
261 | (VikLayerFuncSublayerAddMenuItems) NULL, | |
262 | ||
263 | (VikLayerFuncSublayerRenameRequest) NULL, | |
264 | (VikLayerFuncSublayerToggleVisible) NULL, | |
265 | ||
ad0a8c2d EB |
266 | (VikLayerFuncMarshall) dem_layer_marshall, |
267 | (VikLayerFuncUnmarshall) dem_layer_unmarshall, | |
268 | ||
269 | (VikLayerFuncSetParam) dem_layer_set_param, | |
270 | (VikLayerFuncGetParam) dem_layer_get_param, | |
271 | ||
272 | (VikLayerFuncReadFileData) NULL, | |
273 | (VikLayerFuncWriteFileData) NULL, | |
274 | ||
275 | (VikLayerFuncDeleteItem) NULL, | |
276 | (VikLayerFuncCopyItem) NULL, | |
277 | (VikLayerFuncPasteItem) NULL, | |
278 | (VikLayerFuncFreeCopiedItem) NULL, | |
279 | (VikLayerFuncDragDropRequest) NULL, | |
280 | }; | |
281 | ||
282 | struct _VikDEMLayer { | |
283 | VikLayer vl; | |
284 | GdkGC *gc; | |
285 | GdkGC **gcs; | |
286 | GList *files; | |
415302f4 | 287 | gdouble min_elev; |
ad0a8c2d EB |
288 | gdouble max_elev; |
289 | guint8 line_thickness; | |
290 | gchar *color; | |
8c721f83 | 291 | guint source; |
ad0a8c2d EB |
292 | }; |
293 | ||
294 | GType vik_dem_layer_get_type () | |
295 | { | |
296 | static GType vdl_type = 0; | |
297 | ||
298 | if (!vdl_type) | |
299 | { | |
300 | static const GTypeInfo vdl_info = | |
301 | { | |
302 | sizeof (VikDEMLayerClass), | |
303 | NULL, /* base_init */ | |
304 | NULL, /* base_finalize */ | |
305 | NULL, /* class init */ | |
306 | NULL, /* class_finalize */ | |
307 | NULL, /* class_data */ | |
308 | sizeof (VikDEMLayer), | |
309 | 0, | |
310 | NULL /* instance init */ | |
311 | }; | |
312 | vdl_type = g_type_register_static ( VIK_LAYER_TYPE, "VikDEMLayer", &vdl_info, 0 ); | |
313 | } | |
314 | ||
315 | return vdl_type; | |
316 | } | |
317 | ||
ad0a8c2d EB |
318 | static void dem_layer_marshall( VikDEMLayer *vdl, guint8 **data, gint *len ) |
319 | { | |
320 | vik_layer_marshall_params ( VIK_LAYER(vdl), data, len ); | |
321 | } | |
322 | ||
323 | static VikDEMLayer *dem_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp ) | |
324 | { | |
fa86f1c0 EB |
325 | VikDEMLayer *rv = vik_dem_layer_new (); |
326 | gint i; | |
327 | ||
328 | /* TODO: share GCS between layers */ | |
329 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
330 | rv->gcs[i] = vik_viewport_new_gc ( vvp, dem_colors[i], rv->line_thickness ); | |
331 | ||
ad0a8c2d EB |
332 | vik_layer_unmarshall_params ( VIK_LAYER(rv), data, len, vvp ); |
333 | return rv; | |
334 | } | |
335 | ||
336 | gboolean dem_layer_set_param ( VikDEMLayer *vdl, guint16 id, VikLayerParamData data, VikViewport *vp ) | |
337 | { | |
338 | switch ( id ) | |
339 | { | |
340 | case PARAM_COLOR: if ( vdl->color ) g_free ( vdl->color ); vdl->color = g_strdup ( data.s ); break; | |
8c721f83 | 341 | case PARAM_SOURCE: vdl->source = data.u; break; |
415302f4 | 342 | case PARAM_MIN_ELEV: vdl->min_elev = data.d; break; |
ad0a8c2d EB |
343 | case PARAM_MAX_ELEV: vdl->max_elev = data.d; break; |
344 | case PARAM_LINE_THICKNESS: if ( data.u >= 1 && data.u <= 15 ) vdl->line_thickness = data.u; break; | |
345 | case PARAM_FILES: a_dems_load_list ( &(data.sl) ); a_dems_list_free ( vdl->files ); vdl->files = data.sl; break; | |
346 | } | |
347 | return TRUE; | |
348 | } | |
349 | ||
350 | static VikLayerParamData dem_layer_get_param ( VikDEMLayer *vdl, guint16 id ) | |
351 | { | |
352 | VikLayerParamData rv; | |
353 | switch ( id ) | |
354 | { | |
355 | case PARAM_FILES: rv.sl = vdl->files; break; | |
8c721f83 | 356 | case PARAM_SOURCE: rv.u = vdl->source; break; |
ad0a8c2d | 357 | case PARAM_COLOR: rv.s = vdl->color ? vdl->color : ""; break; |
415302f4 | 358 | case PARAM_MIN_ELEV: rv.d = vdl->min_elev; break; |
ad0a8c2d EB |
359 | case PARAM_MAX_ELEV: rv.d = vdl->max_elev; break; |
360 | case PARAM_LINE_THICKNESS: rv.i = vdl->line_thickness; break; | |
361 | } | |
362 | return rv; | |
363 | } | |
364 | ||
07059501 | 365 | static void dem_layer_post_read ( VikLayer *vl, VikViewport *vp, gboolean from_file ) |
ad0a8c2d | 366 | { |
94933cb8 | 367 | VikDEMLayer *vdl = VIK_DEM_LAYER(vl); |
ad0a8c2d EB |
368 | if ( vdl->gc ) |
369 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
370 | ||
371 | vdl->gc = vik_viewport_new_gc ( vp, vdl->color, vdl->line_thickness ); | |
372 | } | |
373 | ||
374 | VikDEMLayer *vik_dem_layer_new ( ) | |
375 | { | |
376 | VikDEMLayer *vdl = VIK_DEM_LAYER ( g_object_new ( VIK_DEM_LAYER_TYPE, NULL ) ); | |
fa86f1c0 | 377 | |
ad0a8c2d EB |
378 | vik_layer_init ( VIK_LAYER(vdl), VIK_LAYER_DEM ); |
379 | ||
380 | vdl->files = NULL; | |
381 | ||
382 | ||
383 | vdl->gc = NULL; | |
384 | ||
fa86f1c0 EB |
385 | vdl->gcs = g_malloc(sizeof(GdkGC *)*DEM_N_COLORS); |
386 | /* make new gcs only if we need it (copy layer -> use old) */ | |
ad0a8c2d | 387 | |
415302f4 | 388 | vdl->min_elev = 0.0; |
ad0a8c2d | 389 | vdl->max_elev = 1000.0; |
8c721f83 | 390 | vdl->source = DEM_SOURCE_SRTM; |
ad0a8c2d EB |
391 | vdl->line_thickness = 3; |
392 | vdl->color = NULL; | |
393 | return vdl; | |
394 | } | |
395 | ||
396 | ||
0c1044e9 | 397 | |
ad0a8c2d EB |
398 | static void vik_dem_layer_draw_dem ( VikDEMLayer *vdl, VikViewport *vp, VikDEM *dem ) |
399 | { | |
ad0a8c2d EB |
400 | VikDEMColumn *column; |
401 | ||
402 | struct LatLon dem_northeast, dem_southwest; | |
403 | gdouble max_lat, max_lon, min_lat, min_lon; | |
404 | ||
ad0a8c2d EB |
405 | /**** Check if viewport and DEM data overlap ****/ |
406 | ||
407 | /* get min, max lat/lon of viewport */ | |
0c1044e9 | 408 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); |
ad0a8c2d EB |
409 | |
410 | /* get min, max lat/lon of DEM data */ | |
411 | if ( dem->horiz_units == VIK_DEM_HORIZ_LL_ARCSECONDS ) { | |
412 | dem_northeast.lat = dem->max_north / 3600.0; | |
413 | dem_northeast.lon = dem->max_east / 3600.0; | |
414 | dem_southwest.lat = dem->min_north / 3600.0; | |
415 | dem_southwest.lon = dem->min_east / 3600.0; | |
416 | } else if ( dem->horiz_units == VIK_DEM_HORIZ_UTM_METERS ) { | |
417 | struct UTM dem_northeast_utm, dem_southwest_utm; | |
418 | dem_northeast_utm.northing = dem->max_north; | |
419 | dem_northeast_utm.easting = dem->max_east; | |
420 | dem_southwest_utm.northing = dem->min_north; | |
421 | dem_southwest_utm.easting = dem->min_east; | |
422 | dem_northeast_utm.zone = dem_southwest_utm.zone = dem->utm_zone; | |
423 | dem_northeast_utm.letter = dem_southwest_utm.letter = dem->utm_letter; | |
424 | ||
425 | a_coords_utm_to_latlon(&dem_northeast_utm, &dem_northeast); | |
426 | a_coords_utm_to_latlon(&dem_southwest_utm, &dem_southwest); | |
427 | } | |
428 | ||
429 | if ( (max_lat > dem_northeast.lat && min_lat > dem_northeast.lat) || | |
430 | (max_lat < dem_southwest.lat && min_lat < dem_southwest.lat) ) | |
431 | return; | |
432 | else if ( (max_lon > dem_northeast.lon && min_lon > dem_northeast.lon) || | |
433 | (max_lon < dem_southwest.lon && min_lon < dem_southwest.lon) ) | |
434 | return; | |
435 | /* else they overlap */ | |
436 | ||
437 | /**** End Overlap Check ****/ | |
0c1044e9 EB |
438 | /* boxes to show where we have DEM instead of actually drawing the DEM. |
439 | * useful if we want to see what areas we have coverage for (if we want | |
440 | * to get elevation data for a track) but don't want to cover the map. | |
441 | */ | |
442 | ||
443 | #if 0 | |
444 | /* draw a box if a DEM is loaded. in future I'd like to add an option for this | |
445 | * this is useful if we want to see what areas we have dem for but don't want to | |
446 | * cover the map (or maybe we just need translucent DEM?) */ | |
447 | { | |
448 | VikCoord demne, demsw; | |
449 | gint x1, y1, x2, y2; | |
450 | vik_coord_load_from_latlon(&demne, vik_viewport_get_coord_mode(vp), &dem_northeast); | |
451 | vik_coord_load_from_latlon(&demsw, vik_viewport_get_coord_mode(vp), &dem_southwest); | |
452 | ||
453 | vik_viewport_coord_to_screen ( vp, &demne, &x1, &y1 ); | |
454 | vik_viewport_coord_to_screen ( vp, &demsw, &x2, &y2 ); | |
455 | ||
456 | if ( x1 > vik_viewport_get_width(vp) ) x1=vik_viewport_get_width(vp); | |
457 | if ( y2 > vik_viewport_get_height(vp) ) y2=vik_viewport_get_height(vp); | |
458 | if ( x2 < 0 ) x2 = 0; | |
459 | if ( y1 < 0 ) y1 = 0; | |
460 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
461 | FALSE, x2, y1, x1-x2, y2-y1 ); | |
0c1044e9 EB |
462 | return; |
463 | } | |
464 | #endif | |
ad0a8c2d EB |
465 | |
466 | if ( dem->horiz_units == VIK_DEM_HORIZ_LL_ARCSECONDS ) { | |
467 | VikCoord tmp; /* TODO: don't use coord_load_from_latlon, especially if in latlon drawing mode */ | |
468 | ||
469 | gdouble max_lat_as, max_lon_as, min_lat_as, min_lon_as; | |
470 | gdouble start_lat_as, end_lat_as, start_lon_as, end_lon_as; | |
471 | ||
472 | gdouble start_lat, end_lat, start_lon, end_lon; | |
473 | ||
474 | struct LatLon counter; | |
475 | ||
476 | guint x, y, start_x, start_y; | |
477 | ||
478 | gint16 elev; | |
479 | ||
480 | guint skip_factor = ceil ( vik_viewport_get_xmpp(vp) / 40 ); /* todo: smarter calculation. */ | |
481 | ||
482 | gdouble nscale_deg = dem->north_scale / ((gdouble) 3600); | |
483 | gdouble escale_deg = dem->east_scale / ((gdouble) 3600); | |
484 | ||
485 | max_lat_as = max_lat * 3600; | |
486 | min_lat_as = min_lat * 3600; | |
487 | max_lon_as = max_lon * 3600; | |
488 | min_lon_as = min_lon * 3600; | |
489 | ||
490 | start_lat_as = MAX(min_lat_as, dem->min_north); | |
491 | end_lat_as = MIN(max_lat_as, dem->max_north); | |
492 | start_lon_as = MAX(min_lon_as, dem->min_east); | |
493 | end_lon_as = MIN(max_lon_as, dem->max_east); | |
494 | ||
495 | start_lat = floor(start_lat_as / dem->north_scale) * nscale_deg; | |
496 | end_lat = ceil (end_lat_as / dem->north_scale) * nscale_deg; | |
497 | start_lon = floor(start_lon_as / dem->east_scale) * escale_deg; | |
498 | end_lon = ceil (end_lon_as / dem->east_scale) * escale_deg; | |
499 | ||
500 | vik_dem_east_north_to_xy ( dem, start_lon_as, start_lat_as, &start_x, &start_y ); | |
501 | ||
415302f4 EB |
502 | /* verify sane elev interval */ |
503 | if ( vdl->max_elev <= vdl->min_elev ) | |
504 | vdl->max_elev = vdl->min_elev + 1; | |
505 | ||
ad0a8c2d EB |
506 | for ( x=start_x, counter.lon = start_lon; counter.lon <= end_lon; counter.lon += escale_deg * skip_factor, x += skip_factor ) { |
507 | if ( x > 0 && x < dem->n_columns ) { | |
508 | column = g_ptr_array_index ( dem->columns, x ); | |
509 | for ( y=start_y, counter.lat = start_lat; counter.lat <= end_lat; counter.lat += nscale_deg * skip_factor, y += skip_factor ) { | |
510 | if ( y > column->n_points ) | |
511 | break; | |
512 | elev = column->points[y]; | |
415302f4 EB |
513 | |
514 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev ) | |
515 | elev=vdl->min_elev; | |
516 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev ) | |
517 | elev=vdl->max_elev; | |
518 | ||
519 | ||
ad0a8c2d EB |
520 | { |
521 | gint a, b; | |
522 | ||
523 | vik_coord_load_from_latlon(&tmp, vik_viewport_get_coord_mode(vp), &counter); | |
524 | vik_viewport_coord_to_screen(vp, &tmp, &a, &b); | |
525 | if ( elev == VIK_DEM_INVALID_ELEVATION ) | |
526 | ; /* don't draw it */ | |
527 | else if ( elev <= 0 ) | |
528 | vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 ); | |
529 | else | |
415302f4 | 530 | vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor((elev - vdl->min_elev)/(vdl->max_elev - vdl->min_elev)*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 ); |
ad0a8c2d EB |
531 | } |
532 | } /* for y= */ | |
533 | } | |
534 | } /* for x= */ | |
535 | } else if ( dem->horiz_units == VIK_DEM_HORIZ_UTM_METERS ) { | |
536 | gdouble max_nor, max_eas, min_nor, min_eas; | |
537 | gdouble start_nor, start_eas, end_nor, end_eas; | |
538 | ||
539 | gint16 elev; | |
540 | ||
541 | guint x, y, start_x, start_y; | |
542 | ||
543 | VikCoord tmp; /* TODO: don't use coord_load_from_latlon, especially if in latlon drawing mode */ | |
544 | struct UTM counter; | |
545 | ||
546 | guint skip_factor = ceil ( vik_viewport_get_xmpp(vp) / 10 ); /* todo: smarter calculation. */ | |
547 | ||
0c1044e9 EB |
548 | VikCoord tleft, tright, bleft, bright; |
549 | ||
550 | vik_viewport_screen_to_coord ( vp, 0, 0, &tleft ); | |
551 | vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp), 0, &tright ); | |
552 | vik_viewport_screen_to_coord ( vp, 0, vik_viewport_get_height(vp), &bleft ); | |
553 | vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp), vik_viewport_get_height(vp), &bright ); | |
554 | ||
555 | ||
ad0a8c2d EB |
556 | vik_coord_convert(&tleft, VIK_COORD_UTM); |
557 | vik_coord_convert(&tright, VIK_COORD_UTM); | |
558 | vik_coord_convert(&bleft, VIK_COORD_UTM); | |
559 | vik_coord_convert(&bright, VIK_COORD_UTM); | |
560 | ||
561 | max_nor = MAX(tleft.north_south, tright.north_south); | |
562 | min_nor = MIN(bleft.north_south, bright.north_south); | |
563 | max_eas = MAX(bright.east_west, tright.east_west); | |
564 | min_eas = MIN(bleft.east_west, tleft.east_west); | |
565 | ||
566 | start_nor = MAX(min_nor, dem->min_north); | |
567 | end_nor = MIN(max_nor, dem->max_north); | |
568 | if ( tleft.utm_zone == dem->utm_zone && bleft.utm_zone == dem->utm_zone | |
569 | && (tleft.utm_letter >= 'N') == (dem->utm_letter >= 'N') | |
570 | && (bleft.utm_letter >= 'N') == (dem->utm_letter >= 'N') ) /* if the utm zones/hemispheres are different, min_eas will be bogus */ | |
571 | start_eas = MAX(min_eas, dem->min_east); | |
572 | else | |
573 | start_eas = dem->min_east; | |
574 | if ( tright.utm_zone == dem->utm_zone && bright.utm_zone == dem->utm_zone | |
575 | && (tright.utm_letter >= 'N') == (dem->utm_letter >= 'N') | |
576 | && (bright.utm_letter >= 'N') == (dem->utm_letter >= 'N') ) /* if the utm zones/hemispheres are different, min_eas will be bogus */ | |
577 | end_eas = MIN(max_eas, dem->max_east); | |
578 | else | |
579 | end_eas = dem->max_east; | |
580 | ||
581 | start_nor = floor(start_nor / dem->north_scale) * dem->north_scale; | |
582 | end_nor = ceil (end_nor / dem->north_scale) * dem->north_scale; | |
583 | start_eas = floor(start_eas / dem->east_scale) * dem->east_scale; | |
584 | end_eas = ceil (end_eas / dem->east_scale) * dem->east_scale; | |
585 | ||
586 | vik_dem_east_north_to_xy ( dem, start_eas, start_nor, &start_x, &start_y ); | |
587 | ||
588 | /* TODO: why start_x and start_y are -1 -- rounding error from above? */ | |
589 | ||
590 | counter.zone = dem->utm_zone; | |
591 | counter.letter = dem->utm_letter; | |
592 | ||
593 | for ( x=start_x, counter.easting = start_eas; counter.easting <= end_eas; counter.easting += dem->east_scale * skip_factor, x += skip_factor ) { | |
594 | if ( x > 0 && x < dem->n_columns ) { | |
595 | column = g_ptr_array_index ( dem->columns, x ); | |
596 | for ( y=start_y, counter.northing = start_nor; counter.northing <= end_nor; counter.northing += dem->north_scale * skip_factor, y += skip_factor ) { | |
597 | if ( y > column->n_points ) | |
598 | continue; | |
599 | elev = column->points[y]; | |
415302f4 EB |
600 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev ) |
601 | elev=vdl->min_elev; | |
602 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev ) | |
603 | elev=vdl->max_elev; | |
604 | ||
ad0a8c2d EB |
605 | { |
606 | gint a, b; | |
607 | vik_coord_load_from_utm(&tmp, vik_viewport_get_coord_mode(vp), &counter); | |
608 | vik_viewport_coord_to_screen(vp, &tmp, &a, &b); | |
609 | if ( elev == VIK_DEM_INVALID_ELEVATION ) | |
610 | ; /* don't draw it */ | |
611 | else if ( elev <= 0 ) | |
612 | vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 ); | |
613 | else | |
415302f4 | 614 | vik_viewport_draw_rectangle(vp, vdl->gcs[(gint)floor((elev - vdl->min_elev)/(vdl->max_elev - vdl->min_elev)*(DEM_N_COLORS-2))+1], TRUE, a-2, b-2, 4, 4 ); |
ad0a8c2d EB |
615 | } |
616 | } /* for y= */ | |
617 | } | |
618 | } /* for x= */ | |
619 | } | |
620 | } | |
621 | ||
0c1044e9 EB |
622 | /* return the continent for the specified lat, lon */ |
623 | /* TODO */ | |
0e25c0d0 | 624 | static const gchar *srtm_continent_dir ( gint lat, gint lon ) |
0c1044e9 | 625 | { |
0e25c0d0 QT |
626 | extern const char *_srtm_continent_data[]; |
627 | static GHashTable *srtm_continent = NULL; | |
628 | const gchar *continent; | |
629 | gchar name[16]; | |
630 | ||
631 | if (!srtm_continent) { | |
632 | const gchar **s; | |
633 | ||
634 | srtm_continent = g_hash_table_new(g_str_hash, g_str_equal); | |
635 | s = _srtm_continent_data; | |
636 | while (*s != (gchar *)-1) { | |
637 | continent = *s++; | |
638 | while (*s) { | |
0654760a | 639 | g_hash_table_insert(srtm_continent, (gpointer) *s, (gpointer) continent); |
0e25c0d0 QT |
640 | s++; |
641 | } | |
642 | s++; | |
643 | } | |
644 | } | |
645 | g_snprintf(name, sizeof(name), "%c%02d%c%03d", | |
646 | (lat >= 0) ? 'N' : 'S', ABS(lat), | |
647 | (lon >= 0) ? 'E' : 'W', ABS(lon)); | |
648 | ||
649 | return(g_hash_table_lookup(srtm_continent, name)); | |
0c1044e9 EB |
650 | } |
651 | ||
ad0a8c2d EB |
652 | void vik_dem_layer_draw ( VikDEMLayer *vdl, gpointer data ) |
653 | { | |
654 | VikViewport *vp = (VikViewport *) data; | |
655 | GList *dems_iter = vdl->files; | |
656 | VikDEM *dem; | |
0c1044e9 | 657 | |
0c1044e9 EB |
658 | |
659 | /* search for SRTM3 90m */ | |
8c721f83 EB |
660 | |
661 | if ( vdl->source == DEM_SOURCE_SRTM ) | |
662 | srtm_draw_existence ( vp ); | |
663 | #ifdef VIK_CONFIG_DEM24K | |
664 | else if ( vdl->source == DEM_SOURCE_DEM24K ) | |
665 | dem24k_draw_existence ( vp ); | |
666 | #endif | |
0c1044e9 | 667 | |
ad0a8c2d EB |
668 | while ( dems_iter ) { |
669 | dem = a_dems_get ( (const char *) (dems_iter->data) ); | |
670 | if ( dem ) | |
671 | vik_dem_layer_draw_dem ( vdl, vp, dem ); | |
672 | dems_iter = dems_iter->next; | |
673 | } | |
674 | } | |
675 | ||
676 | void vik_dem_layer_free ( VikDEMLayer *vdl ) | |
677 | { | |
fa86f1c0 | 678 | gint i; |
ad0a8c2d EB |
679 | if ( vdl->gc != NULL ) |
680 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
681 | ||
682 | if ( vdl->color != NULL ) | |
683 | g_free ( vdl->color ); | |
684 | ||
fa86f1c0 EB |
685 | if ( vdl->gcs ) |
686 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
687 | g_object_unref ( vdl->gcs[i] ); | |
688 | g_free ( vdl->gcs ); | |
689 | ||
ad0a8c2d EB |
690 | a_dems_list_free ( vdl->files ); |
691 | } | |
692 | ||
693 | static void dem_layer_update_gc ( VikDEMLayer *vdl, VikViewport *vp, const gchar *color ) | |
694 | { | |
ad0a8c2d EB |
695 | if ( vdl->color ) |
696 | g_free ( vdl->color ); | |
697 | ||
698 | vdl->color = g_strdup ( color ); | |
699 | ||
700 | if ( vdl->gc ) | |
701 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
702 | ||
703 | vdl->gc = vik_viewport_new_gc ( vp, vdl->color, vdl->line_thickness ); | |
ad0a8c2d EB |
704 | } |
705 | ||
706 | VikDEMLayer *vik_dem_layer_create ( VikViewport *vp ) | |
707 | { | |
708 | VikDEMLayer *vdl = vik_dem_layer_new (); | |
fa86f1c0 EB |
709 | gint i; |
710 | ||
711 | /* TODO: share GCS between layers */ | |
712 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
713 | vdl->gcs[i] = vik_viewport_new_gc ( vp, dem_colors[i], vdl->line_thickness ); | |
714 | ||
ad0a8c2d EB |
715 | dem_layer_update_gc ( vdl, vp, "red" ); |
716 | return vdl; | |
717 | } | |
8c721f83 EB |
718 | /************************************************************** |
719 | **** SOURCES & DOWNLOADING | |
720 | **************************************************************/ | |
721 | typedef struct { | |
722 | gchar *dest; | |
723 | gdouble lat, lon; | |
724 | ||
725 | GMutex *mutex; | |
726 | VikDEMLayer *vdl; /* NULL if not alive */ | |
727 | ||
728 | guint source; | |
729 | } DEMDownloadParams; | |
730 | ||
ad0a8c2d | 731 | |
0c1044e9 | 732 | /************************************************** |
8c721f83 EB |
733 | * SOURCE: SRTM * |
734 | **************************************************/ | |
735 | ||
736 | static void srtm_dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
0c1044e9 | 737 | { |
8c721f83 | 738 | gint intlat, intlon; |
0e25c0d0 | 739 | const gchar *continent_dir; |
8c721f83 EB |
740 | |
741 | intlat = (int)floor(p->lat); | |
742 | intlon = (int)floor(p->lon); | |
0e25c0d0 QT |
743 | continent_dir = srtm_continent_dir(intlat, intlon); |
744 | ||
745 | if (!continent_dir) { | |
4258f4e2 | 746 | g_warning(N_("No SRTM data available for %f, %f"), p->lat, p->lon); |
0e25c0d0 QT |
747 | return; |
748 | } | |
749 | ||
750 | gchar *src_fn = g_strdup_printf("%s%s%s%c%02d%c%03d.hgt.zip", | |
8c721f83 | 751 | SRTM_FTP_URI, |
0e25c0d0 QT |
752 | continent_dir, |
753 | G_DIR_SEPARATOR_S, | |
8c721f83 EB |
754 | (intlat >= 0) ? 'N' : 'S', |
755 | ABS(intlat), | |
756 | (intlon >= 0) ? 'E' : 'W', | |
757 | ABS(intlon) ); | |
758 | ||
1ac37c09 | 759 | static DownloadOptions options = { NULL, 0, a_check_map_file }; |
8c721f83 EB |
760 | a_ftp_download_get_url ( SRTM_FTP_SITE, src_fn, p->dest, &options ); |
761 | g_free ( src_fn ); | |
0c1044e9 EB |
762 | } |
763 | ||
8c721f83 | 764 | static gchar *srtm_lat_lon_to_dest_fn ( gdouble lat, gdouble lon ) |
0c1044e9 | 765 | { |
8c721f83 | 766 | gint intlat, intlon; |
0e25c0d0 QT |
767 | const gchar *continent_dir; |
768 | ||
8c721f83 EB |
769 | intlat = (int)floor(lat); |
770 | intlon = (int)floor(lon); | |
0e25c0d0 QT |
771 | continent_dir = srtm_continent_dir(intlat, intlon); |
772 | ||
773 | if (!continent_dir) | |
774 | continent_dir = "nowhere"; | |
775 | ||
776 | return g_strdup_printf("srtm3-%s%s%c%02d%c%03d.hgt.zip", | |
777 | continent_dir, | |
778 | G_DIR_SEPARATOR_S, | |
8c721f83 EB |
779 | (intlat >= 0) ? 'N' : 'S', |
780 | ABS(intlat), | |
781 | (intlon >= 0) ? 'E' : 'W', | |
782 | ABS(intlon) ); | |
0c1044e9 | 783 | |
0c1044e9 EB |
784 | } |
785 | ||
8c721f83 EB |
786 | /* TODO: generalize */ |
787 | static void srtm_draw_existence ( VikViewport *vp ) | |
0c1044e9 | 788 | { |
8c721f83 EB |
789 | gdouble max_lat, max_lon, min_lat, min_lon; |
790 | gchar buf[strlen(MAPS_CACHE_DIR)+strlen(SRTM_CACHE_TEMPLATE)+30]; | |
791 | gint i, j; | |
792 | ||
793 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); | |
794 | ||
795 | for (i = floor(min_lat); i <= floor(max_lat); i++) { | |
796 | for (j = floor(min_lon); j <= floor(max_lon); j++) { | |
0e25c0d0 QT |
797 | const gchar *continent_dir; |
798 | if ((continent_dir = srtm_continent_dir(i, j)) == NULL) | |
799 | continue; | |
8c721f83 EB |
800 | g_snprintf(buf, sizeof(buf), SRTM_CACHE_TEMPLATE, |
801 | MAPS_CACHE_DIR, | |
0e25c0d0 QT |
802 | continent_dir, |
803 | G_DIR_SEPARATOR_S, | |
8c721f83 EB |
804 | (i >= 0) ? 'N' : 'S', |
805 | ABS(i), | |
806 | (j >= 0) ? 'E' : 'W', | |
807 | ABS(j) ); | |
45acf79e | 808 | if ( g_file_test(buf, G_FILE_TEST_EXISTS ) == TRUE ) { |
8c721f83 EB |
809 | VikCoord ne, sw; |
810 | gint x1, y1, x2, y2; | |
811 | sw.north_south = i; | |
812 | sw.east_west = j; | |
813 | sw.mode = VIK_COORD_LATLON; | |
814 | ne.north_south = i+1; | |
815 | ne.east_west = j+1; | |
816 | ne.mode = VIK_COORD_LATLON; | |
817 | vik_viewport_coord_to_screen ( vp, &sw, &x1, &y1 ); | |
818 | vik_viewport_coord_to_screen ( vp, &ne, &x2, &y2 ); | |
819 | if ( x1 < 0 ) x1 = 0; | |
820 | if ( y2 < 0 ) y2 = 0; | |
821 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
822 | FALSE, x1, y2, x2-x1, y1-y2 ); | |
823 | } | |
824 | } | |
825 | } | |
0c1044e9 EB |
826 | } |
827 | ||
8c721f83 EB |
828 | |
829 | /************************************************** | |
830 | * SOURCE: USGS 24K * | |
831 | **************************************************/ | |
832 | ||
833 | #ifdef VIK_CONFIG_DEM24K | |
834 | ||
835 | static void dem24k_dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
0c1044e9 | 836 | { |
8c721f83 EB |
837 | /* TODO: dest dir */ |
838 | gchar *cmdline = g_strdup_printf("%s %.03f %.03f", | |
839 | DEM24K_DOWNLOAD_SCRIPT, | |
840 | floor(p->lat*8)/8, | |
841 | ceil(p->lon*8)/8 ); | |
842 | /* FIX: don't use system, use execv or something. check for existence */ | |
843 | system(cmdline); | |
844 | } | |
0c1044e9 | 845 | |
8c721f83 EB |
846 | static gchar *dem24k_lat_lon_to_dest_fn ( gdouble lat, gdouble lon ) |
847 | { | |
848 | return g_strdup_printf("dem24k/%d/%d/%.03f,%.03f.dem", | |
849 | (gint) lat, | |
850 | (gint) lon, | |
851 | floor(lat*8)/8, | |
852 | ceil(lon*8)/8); | |
853 | } | |
0c1044e9 | 854 | |
8c721f83 EB |
855 | /* TODO: generalize */ |
856 | static void dem24k_draw_existence ( VikViewport *vp ) | |
857 | { | |
858 | gdouble max_lat, max_lon, min_lat, min_lon; | |
859 | gchar buf[strlen(MAPS_CACHE_DIR)+40]; | |
860 | gdouble i, j; | |
0c1044e9 | 861 | |
8c721f83 | 862 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); |
0c1044e9 | 863 | |
8c721f83 EB |
864 | for (i = floor(min_lat*8)/8; i <= floor(max_lat*8)/8; i+=0.125) { |
865 | /* check lat dir first -- faster */ | |
866 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/", | |
867 | MAPS_CACHE_DIR, | |
868 | (gint) i ); | |
6b1a58ec | 869 | if ( g_file_test(buf, G_FILE_TEST_EXISTS) == FALSE ) |
8c721f83 EB |
870 | continue; |
871 | for (j = floor(min_lon*8)/8; j <= floor(max_lon*8)/8; j+=0.125) { | |
872 | /* check lon dir first -- faster */ | |
873 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/%d/", | |
874 | MAPS_CACHE_DIR, | |
875 | (gint) i, | |
876 | (gint) j ); | |
45acf79e | 877 | if ( g_file_test(buf, G_FILE_TEST_EXISTS) == FALSE ) |
8c721f83 EB |
878 | continue; |
879 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/%d/%.03f,%.03f.dem", | |
880 | MAPS_CACHE_DIR, | |
881 | (gint) i, | |
882 | (gint) j, | |
883 | floor(i*8)/8, | |
884 | floor(j*8)/8 ); | |
45acf79e | 885 | if ( g_file_test(buf, G_FILE_TEST_EXISTS ) == TRUE ) { |
8c721f83 EB |
886 | VikCoord ne, sw; |
887 | gint x1, y1, x2, y2; | |
888 | sw.north_south = i; | |
889 | sw.east_west = j-0.125; | |
890 | sw.mode = VIK_COORD_LATLON; | |
891 | ne.north_south = i+0.125; | |
892 | ne.east_west = j; | |
893 | ne.mode = VIK_COORD_LATLON; | |
894 | vik_viewport_coord_to_screen ( vp, &sw, &x1, &y1 ); | |
895 | vik_viewport_coord_to_screen ( vp, &ne, &x2, &y2 ); | |
896 | if ( x1 < 0 ) x1 = 0; | |
897 | if ( y2 < 0 ) y2 = 0; | |
898 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
899 | FALSE, x1, y2, x2-x1, y1-y2 ); | |
900 | } | |
901 | } | |
902 | } | |
903 | } | |
904 | #endif | |
0c1044e9 | 905 | |
8c721f83 EB |
906 | /************************************************** |
907 | * SOURCES -- DOWNLOADING & IMPORTING TOOL * | |
908 | ************************************************** | |
909 | */ | |
0c1044e9 | 910 | |
8c721f83 EB |
911 | static void weak_ref_cb ( gpointer ptr, GObject * dead_vdl ) |
912 | { | |
913 | DEMDownloadParams *p = ptr; | |
914 | g_mutex_lock ( p->mutex ); | |
915 | p->vdl = NULL; | |
916 | g_mutex_unlock ( p->mutex ); | |
917 | } | |
0c1044e9 | 918 | |
8c721f83 EB |
919 | /* Try to add file full_path. |
920 | * full_path will be copied. | |
921 | * returns FALSE if file does not exists, TRUE otherwise. | |
922 | */ | |
923 | static gboolean dem_layer_add_file ( VikDEMLayer *vdl, const gchar *full_path ) | |
924 | { | |
45acf79e | 925 | if ( g_file_test(full_path, G_FILE_TEST_EXISTS ) == TRUE ) { |
0c1044e9 EB |
926 | /* only load if file size is not 0 (not in progress */ |
927 | struct stat sb; | |
8c721f83 | 928 | stat (full_path, &sb); |
0c1044e9 | 929 | if ( sb.st_size ) { |
8c721f83 EB |
930 | gchar *duped_path = g_strdup(full_path); |
931 | vdl->files = g_list_prepend ( vdl->files, duped_path ); | |
932 | a_dems_load ( duped_path ); | |
933 | g_warning(duped_path); | |
934 | vik_layer_emit_update ( VIK_LAYER(vdl) ); | |
0c1044e9 | 935 | } |
8c721f83 EB |
936 | return TRUE; |
937 | } else | |
938 | return FALSE; | |
939 | } | |
940 | ||
941 | static void dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
942 | { | |
943 | if ( p->source == DEM_SOURCE_SRTM ) | |
944 | srtm_dem_download_thread ( p, threaddata ); | |
945 | #ifdef VIK_CONFIG_DEM24K | |
946 | else if ( p->source == DEM_SOURCE_DEM24K ) | |
947 | dem24k_dem_download_thread ( p, threaddata ); | |
948 | #endif | |
949 | ||
950 | gdk_threads_enter(); | |
951 | g_mutex_lock ( p->mutex ); | |
952 | if ( p->vdl ) { | |
953 | g_object_weak_unref ( G_OBJECT(p->vdl), weak_ref_cb, p ); | |
954 | ||
955 | if ( dem_layer_add_file ( p->vdl, p->dest ) ) | |
956 | vik_layer_emit_update ( VIK_LAYER(p->vdl) ); | |
957 | } | |
958 | g_mutex_unlock ( p->mutex ); | |
959 | gdk_threads_leave(); | |
960 | } | |
961 | ||
962 | ||
963 | static void free_dem_download_params ( DEMDownloadParams *p ) | |
964 | { | |
965 | g_mutex_free ( p->mutex ); | |
966 | g_free ( p->dest ); | |
967 | g_free ( p ); | |
968 | } | |
969 | ||
970 | static gpointer dem_layer_download_create ( VikWindow *vw, VikViewport *vvp) | |
971 | { | |
972 | return vvp; | |
973 | } | |
974 | ||
975 | ||
976 | static gboolean dem_layer_download_release ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ) | |
977 | { | |
978 | VikCoord coord; | |
979 | struct LatLon ll; | |
980 | ||
981 | gchar *full_path; | |
982 | gchar *dem_file = NULL; | |
983 | ||
8c721f83 | 984 | if ( vdl->source == DEM_SOURCE_NONE ) |
4c77d5e0 | 985 | a_dialog_error_msg ( VIK_GTK_WINDOW_FROM_LAYER(vdl), _("No download source selected. Edit layer properties.") ); |
8c721f83 EB |
986 | |
987 | vik_viewport_screen_to_coord ( vvp, event->x, event->y, &coord ); | |
988 | vik_coord_to_latlon ( &coord, &ll ); | |
989 | ||
990 | ||
991 | if ( vdl->source == DEM_SOURCE_SRTM ) | |
992 | dem_file = srtm_lat_lon_to_dest_fn ( ll.lat, ll.lon ); | |
993 | #ifdef VIK_CONFIG_DEM24K | |
994 | else if ( vdl->source == DEM_SOURCE_DEM24K ) | |
995 | dem_file = dem24k_lat_lon_to_dest_fn ( ll.lat, ll.lon ); | |
996 | #endif | |
997 | ||
998 | if ( ! dem_file ) | |
999 | return TRUE; | |
1000 | ||
1001 | full_path = g_strdup_printf("%s%s", MAPS_CACHE_DIR, dem_file ); | |
1002 | ||
1003 | g_warning(full_path); | |
1004 | ||
1005 | // TODO: check if already in filelist | |
1006 | ||
1007 | if ( ! dem_layer_add_file(vdl, full_path) ) { | |
4c77d5e0 | 1008 | gchar *tmp = g_strdup_printf ( _("Downloading DEM %s"), dem_file ); |
8c721f83 EB |
1009 | DEMDownloadParams *p = g_malloc(sizeof(DEMDownloadParams)); |
1010 | p->dest = g_strdup(full_path); | |
1011 | p->lat = ll.lat; | |
1012 | p->lon = ll.lon; | |
1013 | p->vdl = vdl; | |
1014 | p->mutex = g_mutex_new(); | |
1015 | p->source = vdl->source; | |
1016 | g_object_weak_ref(G_OBJECT(p->vdl), weak_ref_cb, p ); | |
1017 | ||
1018 | a_background_thread ( VIK_GTK_WINDOW_FROM_LAYER(vdl), tmp, | |
1019 | (vik_thr_func) dem_download_thread, p, | |
1020 | (vik_thr_free_func) free_dem_download_params, NULL, 1 ); | |
0c1044e9 EB |
1021 | } |
1022 | ||
8c721f83 EB |
1023 | g_free ( dem_file ); |
1024 | g_free ( full_path ); | |
1025 | ||
0c1044e9 EB |
1026 | return TRUE; |
1027 | } | |
1028 | ||
1029 | static gboolean dem_layer_download_click ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ) | |
1030 | { | |
1031 | /* choose & keep track of cache dir | |
1032 | * download in background thread | |
1033 | * download over area */ | |
1034 | return TRUE; | |
1035 | } | |
1036 | ||
1037 |