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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 | |
8c00358d GB |
24 | |
25 | #ifdef HAVE_MATH_H | |
ad0a8c2d | 26 | #include <math.h> |
8c00358d GB |
27 | #endif |
28 | #ifdef HAVE_SYS_TYPES_H | |
0c1044e9 | 29 | #include <sys/types.h> |
8c00358d GB |
30 | #endif |
31 | #ifdef HAVE_SYS_STAT_H | |
0c1044e9 | 32 | #include <sys/stat.h> |
8c00358d GB |
33 | #endif |
34 | #ifdef HAVE_STRING_H | |
0c1044e9 | 35 | #include <string.h> |
8c00358d | 36 | #endif |
8c721f83 | 37 | #include <stdlib.h> |
4c77d5e0 | 38 | #include <glib/gi18n.h> |
ad0a8c2d | 39 | |
8c721f83 | 40 | #include "config.h" |
ad0a8c2d EB |
41 | #include "globals.h" |
42 | #include "coords.h" | |
43 | #include "vikcoord.h" | |
44 | #include "download.h" | |
0c1044e9 | 45 | #include "background.h" |
ad0a8c2d EB |
46 | #include "vikwaypoint.h" |
47 | #include "viktrack.h" | |
48 | #include "vikviewport.h" | |
49 | #include "viktreeview.h" | |
50 | #include "viklayer.h" | |
51 | #include "vikaggregatelayer.h" | |
52 | #include "viklayerspanel.h" | |
c96fce26 | 53 | #include "vikmapslayer.h" |
ad0a8c2d | 54 | #include "vikdemlayer.h" |
8c721f83 | 55 | #include "dialog.h" |
ad0a8c2d EB |
56 | |
57 | #include "dem.h" | |
58 | #include "dems.h" | |
59 | ||
bce3a7b0 EB |
60 | #include "icons/icons.h" |
61 | ||
8c721f83 | 62 | #define MAPS_CACHE_DIR maps_layer_default_dir() |
0c1044e9 | 63 | |
0e25c0d0 | 64 | #define SRTM_CACHE_TEMPLATE "%ssrtm3-%s%s%c%02d%c%03d.hgt.zip" |
e6c50657 | 65 | #define SRTM_HTTP_SITE "dds.cr.usgs.gov" |
cc239505 | 66 | #define SRTM_HTTP_URI "/srtm/version2_1/SRTM3/OLD/" |
8c721f83 EB |
67 | |
68 | #ifdef VIK_CONFIG_DEM24K | |
69 | #define DEM24K_DOWNLOAD_SCRIPT "dem24k.pl" | |
70 | #endif | |
71 | ||
0c1044e9 | 72 | |
ad0a8c2d EB |
73 | static void dem_layer_marshall( VikDEMLayer *vdl, guint8 **data, gint *len ); |
74 | static VikDEMLayer *dem_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp ); | |
75 | static gboolean dem_layer_set_param ( VikDEMLayer *vdl, guint16 id, VikLayerParamData data, VikViewport *vp ); | |
76 | static VikLayerParamData dem_layer_get_param ( VikDEMLayer *vdl, guint16 id ); | |
77 | static void dem_layer_update_gc ( VikDEMLayer *vdl, VikViewport *vp, const gchar *color ); | |
07059501 | 78 | static void dem_layer_post_read ( VikLayer *vl, VikViewport *vp, gboolean from_file ); |
8c721f83 EB |
79 | static void srtm_draw_existence ( VikViewport *vp ); |
80 | ||
81 | #ifdef VIK_CONFIG_DEM24K | |
82 | static void dem24k_draw_existence ( VikViewport *vp ); | |
83 | #endif | |
ad0a8c2d EB |
84 | |
85 | static VikLayerParamScale param_scales[] = { | |
415302f4 | 86 | { 1, 10000, 10, 1 }, |
ad0a8c2d EB |
87 | { 1, 10000, 10, 1 }, |
88 | { 1, 10, 1, 0 }, | |
89 | }; | |
90 | ||
8c721f83 EB |
91 | static gchar *params_source[] = { |
92 | "SRTM Global 90m (3 arcsec)", | |
93 | #ifdef VIK_CONFIG_DEM24K | |
94 | "USA 10m (USGS 24k)", | |
95 | #endif | |
96 | "None", | |
4235f369 | 97 | NULL |
8c721f83 EB |
98 | }; |
99 | ||
100 | enum { DEM_SOURCE_SRTM, | |
101 | #ifdef VIK_CONFIG_DEM24K | |
102 | DEM_SOURCE_DEM24K, | |
103 | #endif | |
104 | DEM_SOURCE_NONE, | |
105 | }; | |
106 | ||
ad0a8c2d | 107 | static VikLayerParam dem_layer_params[] = { |
4c77d5e0 GB |
108 | { "files", VIK_LAYER_PARAM_STRING_LIST, VIK_LAYER_GROUP_NONE, N_("DEM Files:"), VIK_LAYER_WIDGET_FILELIST }, |
109 | { "source", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Download Source:"), VIK_LAYER_WIDGET_RADIOGROUP_STATIC, params_source, NULL }, | |
110 | { "color", VIK_LAYER_PARAM_STRING, VIK_LAYER_GROUP_NONE, N_("Color:"), VIK_LAYER_WIDGET_ENTRY }, | |
111 | { "min_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, N_("Min Elev:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 }, | |
112 | { "max_elev", VIK_LAYER_PARAM_DOUBLE, VIK_LAYER_GROUP_NONE, N_("Max Elev:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 0 }, | |
113 | { "line_thickness", VIK_LAYER_PARAM_UINT, VIK_LAYER_GROUP_NONE, N_("Line Thickness:"), VIK_LAYER_WIDGET_SPINBUTTON, param_scales + 1 }, | |
ad0a8c2d EB |
114 | }; |
115 | ||
8c721f83 | 116 | |
415302f4 | 117 | enum { PARAM_FILES=0, PARAM_SOURCE, PARAM_COLOR, PARAM_MIN_ELEV, PARAM_MAX_ELEV, PARAM_LINE_THICKNESS, NUM_PARAMS }; |
8c721f83 | 118 | |
0c1044e9 EB |
119 | static gpointer dem_layer_download_create ( VikWindow *vw, VikViewport *vvp); |
120 | static gboolean dem_layer_download_release ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ); | |
121 | static gboolean dem_layer_download_click ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ); | |
122 | ||
123 | static VikToolInterface dem_tools[] = { | |
4c77d5e0 | 124 | { N_("DEM Download/Import"), (VikToolConstructorFunc) dem_layer_download_create, NULL, NULL, NULL, |
bce3a7b0 | 125 | (VikToolMouseFunc) dem_layer_download_click, NULL, (VikToolMouseFunc) dem_layer_download_release, |
5bfafde9 | 126 | (VikToolKeyFunc) NULL, GDK_CURSOR_IS_PIXMAP, &cursor_demdl_pixbuf }, |
0c1044e9 EB |
127 | }; |
128 | ||
129 | ||
ad0a8c2d EB |
130 | /* |
131 | */ | |
132 | ||
ad0a8c2d EB |
133 | static gchar *dem_colors[] = { |
134 | "#0000FF", | |
135 | "#9b793c", | |
136 | "#9c7d40", | |
137 | "#9d8144", | |
138 | "#9e8549", | |
139 | "#9f894d", | |
140 | "#a08d51", | |
141 | "#a29156", | |
142 | "#a3955a", | |
143 | "#a4995e", | |
144 | "#a69d63", | |
145 | "#a89f65", | |
146 | "#aaa267", | |
147 | "#ada569", | |
148 | "#afa76b", | |
149 | "#b1aa6d", | |
150 | "#b4ad6f", | |
151 | "#b6b071", | |
152 | "#b9b373", | |
153 | "#bcb676", | |
154 | "#beb978", | |
155 | "#c0bc7a", | |
156 | "#c2c07d", | |
157 | "#c4c37f", | |
158 | "#c6c681", | |
159 | "#c8ca84", | |
160 | "#cacd86", | |
161 | "#ccd188", | |
162 | "#cfd58b", | |
163 | "#c2ce84", | |
164 | "#b5c87e", | |
165 | "#a9c278", | |
166 | "#9cbb71", | |
167 | "#8fb56b", | |
168 | "#83af65", | |
169 | "#76a95e", | |
170 | "#6aa358", | |
171 | "#5e9d52", | |
172 | "#63a055", | |
173 | "#69a458", | |
174 | "#6fa85c", | |
175 | "#74ac5f", | |
176 | "#7ab063", | |
177 | "#80b467", | |
178 | "#86b86a", | |
179 | "#8cbc6e", | |
180 | "#92c072", | |
181 | "#94c175", | |
182 | "#97c278", | |
183 | "#9ac47c", | |
184 | "#9cc57f", | |
185 | "#9fc682", | |
186 | "#a2c886", | |
187 | "#a4c989", | |
188 | "#a7cb8d", | |
189 | "#aacd91", | |
190 | "#afce99", | |
191 | "#b5d0a1", | |
192 | "#bbd2aa", | |
193 | "#c0d3b2", | |
194 | "#c6d5ba", | |
195 | "#ccd7c3", | |
196 | "#d1d9cb", | |
197 | "#d7dbd4", | |
198 | "#DDDDDD", | |
199 | "#e0e0e0", | |
200 | "#e4e4e4", | |
201 | "#e8e8e8", | |
202 | "#ebebeb", | |
203 | "#efefef", | |
204 | "#f3f3f3", | |
205 | "#f7f7f7", | |
206 | "#fbfbfb", | |
207 | "#ffffff" | |
208 | }; | |
209 | ||
210 | /* | |
211 | "#9b793c", | |
212 | "#9e8549", | |
213 | "#a29156", | |
214 | "#a69d63", | |
215 | "#ada569", | |
216 | "#b4ad6f", | |
217 | "#bcb676", | |
218 | "#c2c07d", | |
219 | "#c8ca84", | |
220 | "#cfd58b", | |
221 | "#a9c278", | |
222 | "#83af65", | |
223 | "#5e9d52", | |
224 | "#6fa85c", | |
225 | "#80b467", | |
226 | "#92c072", | |
227 | "#9ac47c", | |
228 | "#a2c886", | |
229 | "#aacd91", | |
230 | "#bbd2aa", | |
231 | "#ccd7c3", | |
232 | "#DDDDDD", | |
233 | "#e8e8e8", | |
234 | "#f3f3f3", | |
235 | "#FFFFFF" | |
236 | }; | |
237 | */ | |
238 | ||
fa86f1c0 | 239 | static const guint DEM_N_COLORS = sizeof(dem_colors)/sizeof(dem_colors[0]); |
ad0a8c2d | 240 | |
ad0a8c2d EB |
241 | |
242 | VikLayerInterface vik_dem_layer_interface = { | |
243 | "DEM", | |
5bfafde9 | 244 | &vikdemlayer_pixbuf, |
ad0a8c2d | 245 | |
0c1044e9 EB |
246 | dem_tools, |
247 | sizeof(dem_tools) / sizeof(dem_tools[0]), | |
ad0a8c2d EB |
248 | |
249 | dem_layer_params, | |
250 | NUM_PARAMS, | |
251 | NULL, | |
252 | 0, | |
253 | ||
254 | VIK_MENU_ITEM_ALL, | |
255 | ||
256 | (VikLayerFuncCreate) vik_dem_layer_create, | |
257 | (VikLayerFuncRealize) NULL, | |
b112cbf5 | 258 | (VikLayerFuncPostRead) dem_layer_post_read, |
ad0a8c2d EB |
259 | (VikLayerFuncFree) vik_dem_layer_free, |
260 | ||
261 | (VikLayerFuncProperties) NULL, | |
262 | (VikLayerFuncDraw) vik_dem_layer_draw, | |
263 | (VikLayerFuncChangeCoordMode) NULL, | |
264 | ||
265 | (VikLayerFuncSetMenuItemsSelection) NULL, | |
266 | (VikLayerFuncGetMenuItemsSelection) NULL, | |
267 | ||
268 | (VikLayerFuncAddMenuItems) NULL, | |
269 | (VikLayerFuncSublayerAddMenuItems) NULL, | |
270 | ||
271 | (VikLayerFuncSublayerRenameRequest) NULL, | |
272 | (VikLayerFuncSublayerToggleVisible) NULL, | |
273 | ||
ad0a8c2d EB |
274 | (VikLayerFuncMarshall) dem_layer_marshall, |
275 | (VikLayerFuncUnmarshall) dem_layer_unmarshall, | |
276 | ||
277 | (VikLayerFuncSetParam) dem_layer_set_param, | |
278 | (VikLayerFuncGetParam) dem_layer_get_param, | |
279 | ||
280 | (VikLayerFuncReadFileData) NULL, | |
281 | (VikLayerFuncWriteFileData) NULL, | |
282 | ||
283 | (VikLayerFuncDeleteItem) NULL, | |
284 | (VikLayerFuncCopyItem) NULL, | |
285 | (VikLayerFuncPasteItem) NULL, | |
286 | (VikLayerFuncFreeCopiedItem) NULL, | |
287 | (VikLayerFuncDragDropRequest) NULL, | |
288 | }; | |
289 | ||
290 | struct _VikDEMLayer { | |
291 | VikLayer vl; | |
292 | GdkGC *gc; | |
293 | GdkGC **gcs; | |
294 | GList *files; | |
415302f4 | 295 | gdouble min_elev; |
ad0a8c2d EB |
296 | gdouble max_elev; |
297 | guint8 line_thickness; | |
298 | gchar *color; | |
8c721f83 | 299 | guint source; |
ad0a8c2d EB |
300 | }; |
301 | ||
302 | GType vik_dem_layer_get_type () | |
303 | { | |
304 | static GType vdl_type = 0; | |
305 | ||
306 | if (!vdl_type) | |
307 | { | |
308 | static const GTypeInfo vdl_info = | |
309 | { | |
310 | sizeof (VikDEMLayerClass), | |
311 | NULL, /* base_init */ | |
312 | NULL, /* base_finalize */ | |
313 | NULL, /* class init */ | |
314 | NULL, /* class_finalize */ | |
315 | NULL, /* class_data */ | |
316 | sizeof (VikDEMLayer), | |
317 | 0, | |
318 | NULL /* instance init */ | |
319 | }; | |
320 | vdl_type = g_type_register_static ( VIK_LAYER_TYPE, "VikDEMLayer", &vdl_info, 0 ); | |
321 | } | |
322 | ||
323 | return vdl_type; | |
324 | } | |
325 | ||
ad0a8c2d EB |
326 | static void dem_layer_marshall( VikDEMLayer *vdl, guint8 **data, gint *len ) |
327 | { | |
328 | vik_layer_marshall_params ( VIK_LAYER(vdl), data, len ); | |
329 | } | |
330 | ||
331 | static VikDEMLayer *dem_layer_unmarshall( guint8 *data, gint len, VikViewport *vvp ) | |
332 | { | |
fa86f1c0 EB |
333 | VikDEMLayer *rv = vik_dem_layer_new (); |
334 | gint i; | |
335 | ||
336 | /* TODO: share GCS between layers */ | |
337 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
338 | rv->gcs[i] = vik_viewport_new_gc ( vvp, dem_colors[i], rv->line_thickness ); | |
339 | ||
ad0a8c2d EB |
340 | vik_layer_unmarshall_params ( VIK_LAYER(rv), data, len, vvp ); |
341 | return rv; | |
342 | } | |
343 | ||
344 | gboolean dem_layer_set_param ( VikDEMLayer *vdl, guint16 id, VikLayerParamData data, VikViewport *vp ) | |
345 | { | |
346 | switch ( id ) | |
347 | { | |
348 | case PARAM_COLOR: if ( vdl->color ) g_free ( vdl->color ); vdl->color = g_strdup ( data.s ); break; | |
8c721f83 | 349 | case PARAM_SOURCE: vdl->source = data.u; break; |
415302f4 | 350 | case PARAM_MIN_ELEV: vdl->min_elev = data.d; break; |
ad0a8c2d EB |
351 | case PARAM_MAX_ELEV: vdl->max_elev = data.d; break; |
352 | case PARAM_LINE_THICKNESS: if ( data.u >= 1 && data.u <= 15 ) vdl->line_thickness = data.u; break; | |
353 | case PARAM_FILES: a_dems_load_list ( &(data.sl) ); a_dems_list_free ( vdl->files ); vdl->files = data.sl; break; | |
354 | } | |
355 | return TRUE; | |
356 | } | |
357 | ||
358 | static VikLayerParamData dem_layer_get_param ( VikDEMLayer *vdl, guint16 id ) | |
359 | { | |
360 | VikLayerParamData rv; | |
361 | switch ( id ) | |
362 | { | |
363 | case PARAM_FILES: rv.sl = vdl->files; break; | |
8c721f83 | 364 | case PARAM_SOURCE: rv.u = vdl->source; break; |
ad0a8c2d | 365 | case PARAM_COLOR: rv.s = vdl->color ? vdl->color : ""; break; |
415302f4 | 366 | case PARAM_MIN_ELEV: rv.d = vdl->min_elev; break; |
ad0a8c2d EB |
367 | case PARAM_MAX_ELEV: rv.d = vdl->max_elev; break; |
368 | case PARAM_LINE_THICKNESS: rv.i = vdl->line_thickness; break; | |
369 | } | |
370 | return rv; | |
371 | } | |
372 | ||
07059501 | 373 | static void dem_layer_post_read ( VikLayer *vl, VikViewport *vp, gboolean from_file ) |
ad0a8c2d | 374 | { |
94933cb8 | 375 | VikDEMLayer *vdl = VIK_DEM_LAYER(vl); |
ad0a8c2d EB |
376 | if ( vdl->gc ) |
377 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
378 | ||
379 | vdl->gc = vik_viewport_new_gc ( vp, vdl->color, vdl->line_thickness ); | |
380 | } | |
381 | ||
382 | VikDEMLayer *vik_dem_layer_new ( ) | |
383 | { | |
384 | VikDEMLayer *vdl = VIK_DEM_LAYER ( g_object_new ( VIK_DEM_LAYER_TYPE, NULL ) ); | |
fa86f1c0 | 385 | |
ad0a8c2d EB |
386 | vik_layer_init ( VIK_LAYER(vdl), VIK_LAYER_DEM ); |
387 | ||
388 | vdl->files = NULL; | |
389 | ||
390 | ||
391 | vdl->gc = NULL; | |
392 | ||
fa86f1c0 EB |
393 | vdl->gcs = g_malloc(sizeof(GdkGC *)*DEM_N_COLORS); |
394 | /* make new gcs only if we need it (copy layer -> use old) */ | |
ad0a8c2d | 395 | |
415302f4 | 396 | vdl->min_elev = 0.0; |
ad0a8c2d | 397 | vdl->max_elev = 1000.0; |
8c721f83 | 398 | vdl->source = DEM_SOURCE_SRTM; |
ad0a8c2d EB |
399 | vdl->line_thickness = 3; |
400 | vdl->color = NULL; | |
401 | return vdl; | |
402 | } | |
403 | ||
404 | ||
0c1044e9 | 405 | |
ad0a8c2d EB |
406 | static void vik_dem_layer_draw_dem ( VikDEMLayer *vdl, VikViewport *vp, VikDEM *dem ) |
407 | { | |
ad0a8c2d EB |
408 | VikDEMColumn *column; |
409 | ||
410 | struct LatLon dem_northeast, dem_southwest; | |
411 | gdouble max_lat, max_lon, min_lat, min_lon; | |
412 | ||
ad0a8c2d EB |
413 | /**** Check if viewport and DEM data overlap ****/ |
414 | ||
415 | /* get min, max lat/lon of viewport */ | |
0c1044e9 | 416 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); |
ad0a8c2d EB |
417 | |
418 | /* get min, max lat/lon of DEM data */ | |
419 | if ( dem->horiz_units == VIK_DEM_HORIZ_LL_ARCSECONDS ) { | |
420 | dem_northeast.lat = dem->max_north / 3600.0; | |
421 | dem_northeast.lon = dem->max_east / 3600.0; | |
422 | dem_southwest.lat = dem->min_north / 3600.0; | |
423 | dem_southwest.lon = dem->min_east / 3600.0; | |
424 | } else if ( dem->horiz_units == VIK_DEM_HORIZ_UTM_METERS ) { | |
425 | struct UTM dem_northeast_utm, dem_southwest_utm; | |
426 | dem_northeast_utm.northing = dem->max_north; | |
427 | dem_northeast_utm.easting = dem->max_east; | |
428 | dem_southwest_utm.northing = dem->min_north; | |
429 | dem_southwest_utm.easting = dem->min_east; | |
430 | dem_northeast_utm.zone = dem_southwest_utm.zone = dem->utm_zone; | |
431 | dem_northeast_utm.letter = dem_southwest_utm.letter = dem->utm_letter; | |
432 | ||
433 | a_coords_utm_to_latlon(&dem_northeast_utm, &dem_northeast); | |
434 | a_coords_utm_to_latlon(&dem_southwest_utm, &dem_southwest); | |
435 | } | |
436 | ||
437 | if ( (max_lat > dem_northeast.lat && min_lat > dem_northeast.lat) || | |
438 | (max_lat < dem_southwest.lat && min_lat < dem_southwest.lat) ) | |
439 | return; | |
440 | else if ( (max_lon > dem_northeast.lon && min_lon > dem_northeast.lon) || | |
441 | (max_lon < dem_southwest.lon && min_lon < dem_southwest.lon) ) | |
442 | return; | |
443 | /* else they overlap */ | |
444 | ||
445 | /**** End Overlap Check ****/ | |
0c1044e9 EB |
446 | /* boxes to show where we have DEM instead of actually drawing the DEM. |
447 | * useful if we want to see what areas we have coverage for (if we want | |
448 | * to get elevation data for a track) but don't want to cover the map. | |
449 | */ | |
450 | ||
451 | #if 0 | |
452 | /* draw a box if a DEM is loaded. in future I'd like to add an option for this | |
453 | * this is useful if we want to see what areas we have dem for but don't want to | |
454 | * cover the map (or maybe we just need translucent DEM?) */ | |
455 | { | |
456 | VikCoord demne, demsw; | |
457 | gint x1, y1, x2, y2; | |
458 | vik_coord_load_from_latlon(&demne, vik_viewport_get_coord_mode(vp), &dem_northeast); | |
459 | vik_coord_load_from_latlon(&demsw, vik_viewport_get_coord_mode(vp), &dem_southwest); | |
460 | ||
461 | vik_viewport_coord_to_screen ( vp, &demne, &x1, &y1 ); | |
462 | vik_viewport_coord_to_screen ( vp, &demsw, &x2, &y2 ); | |
463 | ||
464 | if ( x1 > vik_viewport_get_width(vp) ) x1=vik_viewport_get_width(vp); | |
465 | if ( y2 > vik_viewport_get_height(vp) ) y2=vik_viewport_get_height(vp); | |
466 | if ( x2 < 0 ) x2 = 0; | |
467 | if ( y1 < 0 ) y1 = 0; | |
468 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
469 | FALSE, x2, y1, x1-x2, y2-y1 ); | |
0c1044e9 EB |
470 | return; |
471 | } | |
472 | #endif | |
ad0a8c2d EB |
473 | |
474 | if ( dem->horiz_units == VIK_DEM_HORIZ_LL_ARCSECONDS ) { | |
475 | VikCoord tmp; /* TODO: don't use coord_load_from_latlon, especially if in latlon drawing mode */ | |
476 | ||
477 | gdouble max_lat_as, max_lon_as, min_lat_as, min_lon_as; | |
478 | gdouble start_lat_as, end_lat_as, start_lon_as, end_lon_as; | |
479 | ||
480 | gdouble start_lat, end_lat, start_lon, end_lon; | |
481 | ||
482 | struct LatLon counter; | |
483 | ||
484 | guint x, y, start_x, start_y; | |
485 | ||
486 | gint16 elev; | |
487 | ||
488 | guint skip_factor = ceil ( vik_viewport_get_xmpp(vp) / 40 ); /* todo: smarter calculation. */ | |
489 | ||
490 | gdouble nscale_deg = dem->north_scale / ((gdouble) 3600); | |
491 | gdouble escale_deg = dem->east_scale / ((gdouble) 3600); | |
492 | ||
493 | max_lat_as = max_lat * 3600; | |
494 | min_lat_as = min_lat * 3600; | |
495 | max_lon_as = max_lon * 3600; | |
496 | min_lon_as = min_lon * 3600; | |
497 | ||
498 | start_lat_as = MAX(min_lat_as, dem->min_north); | |
499 | end_lat_as = MIN(max_lat_as, dem->max_north); | |
500 | start_lon_as = MAX(min_lon_as, dem->min_east); | |
501 | end_lon_as = MIN(max_lon_as, dem->max_east); | |
502 | ||
503 | start_lat = floor(start_lat_as / dem->north_scale) * nscale_deg; | |
504 | end_lat = ceil (end_lat_as / dem->north_scale) * nscale_deg; | |
505 | start_lon = floor(start_lon_as / dem->east_scale) * escale_deg; | |
506 | end_lon = ceil (end_lon_as / dem->east_scale) * escale_deg; | |
507 | ||
508 | vik_dem_east_north_to_xy ( dem, start_lon_as, start_lat_as, &start_x, &start_y ); | |
509 | ||
415302f4 EB |
510 | /* verify sane elev interval */ |
511 | if ( vdl->max_elev <= vdl->min_elev ) | |
512 | vdl->max_elev = vdl->min_elev + 1; | |
513 | ||
ad0a8c2d EB |
514 | for ( x=start_x, counter.lon = start_lon; counter.lon <= end_lon; counter.lon += escale_deg * skip_factor, x += skip_factor ) { |
515 | if ( x > 0 && x < dem->n_columns ) { | |
516 | column = g_ptr_array_index ( dem->columns, x ); | |
517 | for ( y=start_y, counter.lat = start_lat; counter.lat <= end_lat; counter.lat += nscale_deg * skip_factor, y += skip_factor ) { | |
518 | if ( y > column->n_points ) | |
519 | break; | |
520 | elev = column->points[y]; | |
415302f4 EB |
521 | |
522 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev ) | |
523 | elev=vdl->min_elev; | |
524 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev ) | |
525 | elev=vdl->max_elev; | |
526 | ||
527 | ||
ad0a8c2d EB |
528 | { |
529 | gint a, b; | |
530 | ||
531 | vik_coord_load_from_latlon(&tmp, vik_viewport_get_coord_mode(vp), &counter); | |
532 | vik_viewport_coord_to_screen(vp, &tmp, &a, &b); | |
533 | if ( elev == VIK_DEM_INVALID_ELEVATION ) | |
534 | ; /* don't draw it */ | |
535 | else if ( elev <= 0 ) | |
536 | vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 ); | |
537 | else | |
415302f4 | 538 | 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 |
539 | } |
540 | } /* for y= */ | |
541 | } | |
542 | } /* for x= */ | |
543 | } else if ( dem->horiz_units == VIK_DEM_HORIZ_UTM_METERS ) { | |
544 | gdouble max_nor, max_eas, min_nor, min_eas; | |
545 | gdouble start_nor, start_eas, end_nor, end_eas; | |
546 | ||
547 | gint16 elev; | |
548 | ||
549 | guint x, y, start_x, start_y; | |
550 | ||
551 | VikCoord tmp; /* TODO: don't use coord_load_from_latlon, especially if in latlon drawing mode */ | |
552 | struct UTM counter; | |
553 | ||
554 | guint skip_factor = ceil ( vik_viewport_get_xmpp(vp) / 10 ); /* todo: smarter calculation. */ | |
555 | ||
0c1044e9 EB |
556 | VikCoord tleft, tright, bleft, bright; |
557 | ||
558 | vik_viewport_screen_to_coord ( vp, 0, 0, &tleft ); | |
559 | vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp), 0, &tright ); | |
560 | vik_viewport_screen_to_coord ( vp, 0, vik_viewport_get_height(vp), &bleft ); | |
561 | vik_viewport_screen_to_coord ( vp, vik_viewport_get_width(vp), vik_viewport_get_height(vp), &bright ); | |
562 | ||
563 | ||
ad0a8c2d EB |
564 | vik_coord_convert(&tleft, VIK_COORD_UTM); |
565 | vik_coord_convert(&tright, VIK_COORD_UTM); | |
566 | vik_coord_convert(&bleft, VIK_COORD_UTM); | |
567 | vik_coord_convert(&bright, VIK_COORD_UTM); | |
568 | ||
569 | max_nor = MAX(tleft.north_south, tright.north_south); | |
570 | min_nor = MIN(bleft.north_south, bright.north_south); | |
571 | max_eas = MAX(bright.east_west, tright.east_west); | |
572 | min_eas = MIN(bleft.east_west, tleft.east_west); | |
573 | ||
574 | start_nor = MAX(min_nor, dem->min_north); | |
575 | end_nor = MIN(max_nor, dem->max_north); | |
576 | if ( tleft.utm_zone == dem->utm_zone && bleft.utm_zone == dem->utm_zone | |
577 | && (tleft.utm_letter >= 'N') == (dem->utm_letter >= 'N') | |
578 | && (bleft.utm_letter >= 'N') == (dem->utm_letter >= 'N') ) /* if the utm zones/hemispheres are different, min_eas will be bogus */ | |
579 | start_eas = MAX(min_eas, dem->min_east); | |
580 | else | |
581 | start_eas = dem->min_east; | |
582 | if ( tright.utm_zone == dem->utm_zone && bright.utm_zone == dem->utm_zone | |
583 | && (tright.utm_letter >= 'N') == (dem->utm_letter >= 'N') | |
584 | && (bright.utm_letter >= 'N') == (dem->utm_letter >= 'N') ) /* if the utm zones/hemispheres are different, min_eas will be bogus */ | |
585 | end_eas = MIN(max_eas, dem->max_east); | |
586 | else | |
587 | end_eas = dem->max_east; | |
588 | ||
589 | start_nor = floor(start_nor / dem->north_scale) * dem->north_scale; | |
590 | end_nor = ceil (end_nor / dem->north_scale) * dem->north_scale; | |
591 | start_eas = floor(start_eas / dem->east_scale) * dem->east_scale; | |
592 | end_eas = ceil (end_eas / dem->east_scale) * dem->east_scale; | |
593 | ||
594 | vik_dem_east_north_to_xy ( dem, start_eas, start_nor, &start_x, &start_y ); | |
595 | ||
596 | /* TODO: why start_x and start_y are -1 -- rounding error from above? */ | |
597 | ||
598 | counter.zone = dem->utm_zone; | |
599 | counter.letter = dem->utm_letter; | |
600 | ||
601 | for ( x=start_x, counter.easting = start_eas; counter.easting <= end_eas; counter.easting += dem->east_scale * skip_factor, x += skip_factor ) { | |
602 | if ( x > 0 && x < dem->n_columns ) { | |
603 | column = g_ptr_array_index ( dem->columns, x ); | |
604 | for ( y=start_y, counter.northing = start_nor; counter.northing <= end_nor; counter.northing += dem->north_scale * skip_factor, y += skip_factor ) { | |
605 | if ( y > column->n_points ) | |
606 | continue; | |
607 | elev = column->points[y]; | |
415302f4 EB |
608 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev < vdl->min_elev ) |
609 | elev=vdl->min_elev; | |
610 | if ( elev != VIK_DEM_INVALID_ELEVATION && elev > vdl->max_elev ) | |
611 | elev=vdl->max_elev; | |
612 | ||
ad0a8c2d EB |
613 | { |
614 | gint a, b; | |
615 | vik_coord_load_from_utm(&tmp, vik_viewport_get_coord_mode(vp), &counter); | |
616 | vik_viewport_coord_to_screen(vp, &tmp, &a, &b); | |
617 | if ( elev == VIK_DEM_INVALID_ELEVATION ) | |
618 | ; /* don't draw it */ | |
619 | else if ( elev <= 0 ) | |
620 | vik_viewport_draw_rectangle(vp, vdl->gcs[0], TRUE, a-2, b-2, 4, 4 ); | |
621 | else | |
415302f4 | 622 | 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 |
623 | } |
624 | } /* for y= */ | |
625 | } | |
626 | } /* for x= */ | |
627 | } | |
628 | } | |
629 | ||
0c1044e9 EB |
630 | /* return the continent for the specified lat, lon */ |
631 | /* TODO */ | |
0e25c0d0 | 632 | static const gchar *srtm_continent_dir ( gint lat, gint lon ) |
0c1044e9 | 633 | { |
0e25c0d0 QT |
634 | extern const char *_srtm_continent_data[]; |
635 | static GHashTable *srtm_continent = NULL; | |
636 | const gchar *continent; | |
637 | gchar name[16]; | |
638 | ||
639 | if (!srtm_continent) { | |
640 | const gchar **s; | |
641 | ||
642 | srtm_continent = g_hash_table_new(g_str_hash, g_str_equal); | |
643 | s = _srtm_continent_data; | |
644 | while (*s != (gchar *)-1) { | |
645 | continent = *s++; | |
646 | while (*s) { | |
0654760a | 647 | g_hash_table_insert(srtm_continent, (gpointer) *s, (gpointer) continent); |
0e25c0d0 QT |
648 | s++; |
649 | } | |
650 | s++; | |
651 | } | |
652 | } | |
653 | g_snprintf(name, sizeof(name), "%c%02d%c%03d", | |
654 | (lat >= 0) ? 'N' : 'S', ABS(lat), | |
655 | (lon >= 0) ? 'E' : 'W', ABS(lon)); | |
656 | ||
657 | return(g_hash_table_lookup(srtm_continent, name)); | |
0c1044e9 EB |
658 | } |
659 | ||
ad0a8c2d EB |
660 | void vik_dem_layer_draw ( VikDEMLayer *vdl, gpointer data ) |
661 | { | |
662 | VikViewport *vp = (VikViewport *) data; | |
663 | GList *dems_iter = vdl->files; | |
664 | VikDEM *dem; | |
0c1044e9 | 665 | |
0c1044e9 EB |
666 | |
667 | /* search for SRTM3 90m */ | |
8c721f83 EB |
668 | |
669 | if ( vdl->source == DEM_SOURCE_SRTM ) | |
670 | srtm_draw_existence ( vp ); | |
671 | #ifdef VIK_CONFIG_DEM24K | |
672 | else if ( vdl->source == DEM_SOURCE_DEM24K ) | |
673 | dem24k_draw_existence ( vp ); | |
674 | #endif | |
0c1044e9 | 675 | |
ad0a8c2d EB |
676 | while ( dems_iter ) { |
677 | dem = a_dems_get ( (const char *) (dems_iter->data) ); | |
678 | if ( dem ) | |
679 | vik_dem_layer_draw_dem ( vdl, vp, dem ); | |
680 | dems_iter = dems_iter->next; | |
681 | } | |
682 | } | |
683 | ||
684 | void vik_dem_layer_free ( VikDEMLayer *vdl ) | |
685 | { | |
fa86f1c0 | 686 | gint i; |
ad0a8c2d EB |
687 | if ( vdl->gc != NULL ) |
688 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
689 | ||
690 | if ( vdl->color != NULL ) | |
691 | g_free ( vdl->color ); | |
692 | ||
fa86f1c0 EB |
693 | if ( vdl->gcs ) |
694 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
695 | g_object_unref ( vdl->gcs[i] ); | |
696 | g_free ( vdl->gcs ); | |
697 | ||
ad0a8c2d EB |
698 | a_dems_list_free ( vdl->files ); |
699 | } | |
700 | ||
701 | static void dem_layer_update_gc ( VikDEMLayer *vdl, VikViewport *vp, const gchar *color ) | |
702 | { | |
ad0a8c2d EB |
703 | if ( vdl->color ) |
704 | g_free ( vdl->color ); | |
705 | ||
706 | vdl->color = g_strdup ( color ); | |
707 | ||
708 | if ( vdl->gc ) | |
709 | g_object_unref ( G_OBJECT(vdl->gc) ); | |
710 | ||
711 | vdl->gc = vik_viewport_new_gc ( vp, vdl->color, vdl->line_thickness ); | |
ad0a8c2d EB |
712 | } |
713 | ||
714 | VikDEMLayer *vik_dem_layer_create ( VikViewport *vp ) | |
715 | { | |
716 | VikDEMLayer *vdl = vik_dem_layer_new (); | |
fa86f1c0 EB |
717 | gint i; |
718 | ||
719 | /* TODO: share GCS between layers */ | |
720 | for ( i = 0; i < DEM_N_COLORS; i++ ) | |
721 | vdl->gcs[i] = vik_viewport_new_gc ( vp, dem_colors[i], vdl->line_thickness ); | |
722 | ||
ad0a8c2d EB |
723 | dem_layer_update_gc ( vdl, vp, "red" ); |
724 | return vdl; | |
725 | } | |
8c721f83 EB |
726 | /************************************************************** |
727 | **** SOURCES & DOWNLOADING | |
728 | **************************************************************/ | |
729 | typedef struct { | |
730 | gchar *dest; | |
731 | gdouble lat, lon; | |
732 | ||
733 | GMutex *mutex; | |
734 | VikDEMLayer *vdl; /* NULL if not alive */ | |
735 | ||
736 | guint source; | |
737 | } DEMDownloadParams; | |
738 | ||
ad0a8c2d | 739 | |
0c1044e9 | 740 | /************************************************** |
8c721f83 EB |
741 | * SOURCE: SRTM * |
742 | **************************************************/ | |
743 | ||
744 | static void srtm_dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
0c1044e9 | 745 | { |
8c721f83 | 746 | gint intlat, intlon; |
0e25c0d0 | 747 | const gchar *continent_dir; |
8c721f83 EB |
748 | |
749 | intlat = (int)floor(p->lat); | |
750 | intlon = (int)floor(p->lon); | |
0e25c0d0 QT |
751 | continent_dir = srtm_continent_dir(intlat, intlon); |
752 | ||
753 | if (!continent_dir) { | |
4258f4e2 | 754 | g_warning(N_("No SRTM data available for %f, %f"), p->lat, p->lon); |
0e25c0d0 QT |
755 | return; |
756 | } | |
757 | ||
65a64219 | 758 | gchar *src_fn = g_strdup_printf("%s%s/%c%02d%c%03d.hgt.zip", |
e6c50657 | 759 | SRTM_HTTP_URI, |
0e25c0d0 | 760 | continent_dir, |
8c721f83 EB |
761 | (intlat >= 0) ? 'N' : 'S', |
762 | ABS(intlat), | |
763 | (intlon >= 0) ? 'E' : 'W', | |
764 | ABS(intlon) ); | |
765 | ||
1ac37c09 | 766 | static DownloadOptions options = { NULL, 0, a_check_map_file }; |
e6c50657 | 767 | a_http_download_get_url ( SRTM_HTTP_SITE, src_fn, p->dest, &options ); |
8c721f83 | 768 | g_free ( src_fn ); |
0c1044e9 EB |
769 | } |
770 | ||
8c721f83 | 771 | static gchar *srtm_lat_lon_to_dest_fn ( gdouble lat, gdouble lon ) |
0c1044e9 | 772 | { |
8c721f83 | 773 | gint intlat, intlon; |
0e25c0d0 QT |
774 | const gchar *continent_dir; |
775 | ||
8c721f83 EB |
776 | intlat = (int)floor(lat); |
777 | intlon = (int)floor(lon); | |
0e25c0d0 QT |
778 | continent_dir = srtm_continent_dir(intlat, intlon); |
779 | ||
780 | if (!continent_dir) | |
781 | continent_dir = "nowhere"; | |
782 | ||
783 | return g_strdup_printf("srtm3-%s%s%c%02d%c%03d.hgt.zip", | |
784 | continent_dir, | |
785 | G_DIR_SEPARATOR_S, | |
8c721f83 EB |
786 | (intlat >= 0) ? 'N' : 'S', |
787 | ABS(intlat), | |
788 | (intlon >= 0) ? 'E' : 'W', | |
789 | ABS(intlon) ); | |
0c1044e9 | 790 | |
0c1044e9 EB |
791 | } |
792 | ||
8c721f83 EB |
793 | /* TODO: generalize */ |
794 | static void srtm_draw_existence ( VikViewport *vp ) | |
0c1044e9 | 795 | { |
8c721f83 EB |
796 | gdouble max_lat, max_lon, min_lat, min_lon; |
797 | gchar buf[strlen(MAPS_CACHE_DIR)+strlen(SRTM_CACHE_TEMPLATE)+30]; | |
798 | gint i, j; | |
799 | ||
800 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); | |
801 | ||
802 | for (i = floor(min_lat); i <= floor(max_lat); i++) { | |
803 | for (j = floor(min_lon); j <= floor(max_lon); j++) { | |
0e25c0d0 QT |
804 | const gchar *continent_dir; |
805 | if ((continent_dir = srtm_continent_dir(i, j)) == NULL) | |
806 | continue; | |
8c721f83 EB |
807 | g_snprintf(buf, sizeof(buf), SRTM_CACHE_TEMPLATE, |
808 | MAPS_CACHE_DIR, | |
0e25c0d0 QT |
809 | continent_dir, |
810 | G_DIR_SEPARATOR_S, | |
8c721f83 EB |
811 | (i >= 0) ? 'N' : 'S', |
812 | ABS(i), | |
813 | (j >= 0) ? 'E' : 'W', | |
814 | ABS(j) ); | |
45acf79e | 815 | if ( g_file_test(buf, G_FILE_TEST_EXISTS ) == TRUE ) { |
8c721f83 EB |
816 | VikCoord ne, sw; |
817 | gint x1, y1, x2, y2; | |
818 | sw.north_south = i; | |
819 | sw.east_west = j; | |
820 | sw.mode = VIK_COORD_LATLON; | |
821 | ne.north_south = i+1; | |
822 | ne.east_west = j+1; | |
823 | ne.mode = VIK_COORD_LATLON; | |
824 | vik_viewport_coord_to_screen ( vp, &sw, &x1, &y1 ); | |
825 | vik_viewport_coord_to_screen ( vp, &ne, &x2, &y2 ); | |
826 | if ( x1 < 0 ) x1 = 0; | |
827 | if ( y2 < 0 ) y2 = 0; | |
828 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
829 | FALSE, x1, y2, x2-x1, y1-y2 ); | |
830 | } | |
831 | } | |
832 | } | |
0c1044e9 EB |
833 | } |
834 | ||
8c721f83 EB |
835 | |
836 | /************************************************** | |
837 | * SOURCE: USGS 24K * | |
838 | **************************************************/ | |
839 | ||
840 | #ifdef VIK_CONFIG_DEM24K | |
841 | ||
842 | static void dem24k_dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
0c1044e9 | 843 | { |
8c721f83 EB |
844 | /* TODO: dest dir */ |
845 | gchar *cmdline = g_strdup_printf("%s %.03f %.03f", | |
846 | DEM24K_DOWNLOAD_SCRIPT, | |
847 | floor(p->lat*8)/8, | |
848 | ceil(p->lon*8)/8 ); | |
849 | /* FIX: don't use system, use execv or something. check for existence */ | |
850 | system(cmdline); | |
851 | } | |
0c1044e9 | 852 | |
8c721f83 EB |
853 | static gchar *dem24k_lat_lon_to_dest_fn ( gdouble lat, gdouble lon ) |
854 | { | |
855 | return g_strdup_printf("dem24k/%d/%d/%.03f,%.03f.dem", | |
856 | (gint) lat, | |
857 | (gint) lon, | |
858 | floor(lat*8)/8, | |
859 | ceil(lon*8)/8); | |
860 | } | |
0c1044e9 | 861 | |
8c721f83 EB |
862 | /* TODO: generalize */ |
863 | static void dem24k_draw_existence ( VikViewport *vp ) | |
864 | { | |
865 | gdouble max_lat, max_lon, min_lat, min_lon; | |
866 | gchar buf[strlen(MAPS_CACHE_DIR)+40]; | |
867 | gdouble i, j; | |
0c1044e9 | 868 | |
8c721f83 | 869 | vik_viewport_get_min_max_lat_lon ( vp, &min_lat, &max_lat, &min_lon, &max_lon ); |
0c1044e9 | 870 | |
8c721f83 EB |
871 | for (i = floor(min_lat*8)/8; i <= floor(max_lat*8)/8; i+=0.125) { |
872 | /* check lat dir first -- faster */ | |
873 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/", | |
874 | MAPS_CACHE_DIR, | |
875 | (gint) i ); | |
6b1a58ec | 876 | if ( g_file_test(buf, G_FILE_TEST_EXISTS) == FALSE ) |
8c721f83 EB |
877 | continue; |
878 | for (j = floor(min_lon*8)/8; j <= floor(max_lon*8)/8; j+=0.125) { | |
879 | /* check lon dir first -- faster */ | |
880 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/%d/", | |
881 | MAPS_CACHE_DIR, | |
882 | (gint) i, | |
883 | (gint) j ); | |
45acf79e | 884 | if ( g_file_test(buf, G_FILE_TEST_EXISTS) == FALSE ) |
8c721f83 EB |
885 | continue; |
886 | g_snprintf(buf, sizeof(buf), "%sdem24k/%d/%d/%.03f,%.03f.dem", | |
887 | MAPS_CACHE_DIR, | |
888 | (gint) i, | |
889 | (gint) j, | |
890 | floor(i*8)/8, | |
891 | floor(j*8)/8 ); | |
45acf79e | 892 | if ( g_file_test(buf, G_FILE_TEST_EXISTS ) == TRUE ) { |
8c721f83 EB |
893 | VikCoord ne, sw; |
894 | gint x1, y1, x2, y2; | |
895 | sw.north_south = i; | |
896 | sw.east_west = j-0.125; | |
897 | sw.mode = VIK_COORD_LATLON; | |
898 | ne.north_south = i+0.125; | |
899 | ne.east_west = j; | |
900 | ne.mode = VIK_COORD_LATLON; | |
901 | vik_viewport_coord_to_screen ( vp, &sw, &x1, &y1 ); | |
902 | vik_viewport_coord_to_screen ( vp, &ne, &x2, &y2 ); | |
903 | if ( x1 < 0 ) x1 = 0; | |
904 | if ( y2 < 0 ) y2 = 0; | |
905 | vik_viewport_draw_rectangle ( vp, GTK_WIDGET(vp)->style->black_gc, | |
906 | FALSE, x1, y2, x2-x1, y1-y2 ); | |
907 | } | |
908 | } | |
909 | } | |
910 | } | |
911 | #endif | |
0c1044e9 | 912 | |
8c721f83 EB |
913 | /************************************************** |
914 | * SOURCES -- DOWNLOADING & IMPORTING TOOL * | |
915 | ************************************************** | |
916 | */ | |
0c1044e9 | 917 | |
8c721f83 EB |
918 | static void weak_ref_cb ( gpointer ptr, GObject * dead_vdl ) |
919 | { | |
920 | DEMDownloadParams *p = ptr; | |
921 | g_mutex_lock ( p->mutex ); | |
922 | p->vdl = NULL; | |
923 | g_mutex_unlock ( p->mutex ); | |
924 | } | |
0c1044e9 | 925 | |
8c721f83 EB |
926 | /* Try to add file full_path. |
927 | * full_path will be copied. | |
928 | * returns FALSE if file does not exists, TRUE otherwise. | |
929 | */ | |
930 | static gboolean dem_layer_add_file ( VikDEMLayer *vdl, const gchar *full_path ) | |
931 | { | |
45acf79e | 932 | if ( g_file_test(full_path, G_FILE_TEST_EXISTS ) == TRUE ) { |
b01c3429 | 933 | /* only load if file size is not 0 (not in progress) */ |
0c1044e9 | 934 | struct stat sb; |
8c721f83 | 935 | stat (full_path, &sb); |
0c1044e9 | 936 | if ( sb.st_size ) { |
8c721f83 EB |
937 | gchar *duped_path = g_strdup(full_path); |
938 | vdl->files = g_list_prepend ( vdl->files, duped_path ); | |
939 | a_dems_load ( duped_path ); | |
b01c3429 | 940 | g_debug("%s: %s", __FUNCTION__, duped_path); |
8c721f83 | 941 | vik_layer_emit_update ( VIK_LAYER(vdl) ); |
0c1044e9 | 942 | } |
8c721f83 EB |
943 | return TRUE; |
944 | } else | |
945 | return FALSE; | |
946 | } | |
947 | ||
948 | static void dem_download_thread ( DEMDownloadParams *p, gpointer threaddata ) | |
949 | { | |
950 | if ( p->source == DEM_SOURCE_SRTM ) | |
951 | srtm_dem_download_thread ( p, threaddata ); | |
952 | #ifdef VIK_CONFIG_DEM24K | |
953 | else if ( p->source == DEM_SOURCE_DEM24K ) | |
954 | dem24k_dem_download_thread ( p, threaddata ); | |
955 | #endif | |
956 | ||
957 | gdk_threads_enter(); | |
958 | g_mutex_lock ( p->mutex ); | |
959 | if ( p->vdl ) { | |
960 | g_object_weak_unref ( G_OBJECT(p->vdl), weak_ref_cb, p ); | |
961 | ||
962 | if ( dem_layer_add_file ( p->vdl, p->dest ) ) | |
963 | vik_layer_emit_update ( VIK_LAYER(p->vdl) ); | |
964 | } | |
965 | g_mutex_unlock ( p->mutex ); | |
966 | gdk_threads_leave(); | |
967 | } | |
968 | ||
969 | ||
970 | static void free_dem_download_params ( DEMDownloadParams *p ) | |
971 | { | |
972 | g_mutex_free ( p->mutex ); | |
973 | g_free ( p->dest ); | |
974 | g_free ( p ); | |
975 | } | |
976 | ||
977 | static gpointer dem_layer_download_create ( VikWindow *vw, VikViewport *vvp) | |
978 | { | |
979 | return vvp; | |
980 | } | |
981 | ||
982 | ||
983 | static gboolean dem_layer_download_release ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ) | |
984 | { | |
985 | VikCoord coord; | |
986 | struct LatLon ll; | |
987 | ||
988 | gchar *full_path; | |
989 | gchar *dem_file = NULL; | |
990 | ||
8c721f83 | 991 | if ( vdl->source == DEM_SOURCE_NONE ) |
4c77d5e0 | 992 | a_dialog_error_msg ( VIK_GTK_WINDOW_FROM_LAYER(vdl), _("No download source selected. Edit layer properties.") ); |
8c721f83 EB |
993 | |
994 | vik_viewport_screen_to_coord ( vvp, event->x, event->y, &coord ); | |
995 | vik_coord_to_latlon ( &coord, &ll ); | |
996 | ||
997 | ||
998 | if ( vdl->source == DEM_SOURCE_SRTM ) | |
999 | dem_file = srtm_lat_lon_to_dest_fn ( ll.lat, ll.lon ); | |
1000 | #ifdef VIK_CONFIG_DEM24K | |
1001 | else if ( vdl->source == DEM_SOURCE_DEM24K ) | |
1002 | dem_file = dem24k_lat_lon_to_dest_fn ( ll.lat, ll.lon ); | |
1003 | #endif | |
1004 | ||
1005 | if ( ! dem_file ) | |
1006 | return TRUE; | |
1007 | ||
1008 | full_path = g_strdup_printf("%s%s", MAPS_CACHE_DIR, dem_file ); | |
1009 | ||
b01c3429 | 1010 | g_debug("%s: %s", __FUNCTION__, full_path); |
8c721f83 EB |
1011 | |
1012 | // TODO: check if already in filelist | |
1013 | ||
1014 | if ( ! dem_layer_add_file(vdl, full_path) ) { | |
4c77d5e0 | 1015 | gchar *tmp = g_strdup_printf ( _("Downloading DEM %s"), dem_file ); |
8c721f83 EB |
1016 | DEMDownloadParams *p = g_malloc(sizeof(DEMDownloadParams)); |
1017 | p->dest = g_strdup(full_path); | |
1018 | p->lat = ll.lat; | |
1019 | p->lon = ll.lon; | |
1020 | p->vdl = vdl; | |
1021 | p->mutex = g_mutex_new(); | |
1022 | p->source = vdl->source; | |
1023 | g_object_weak_ref(G_OBJECT(p->vdl), weak_ref_cb, p ); | |
1024 | ||
1025 | a_background_thread ( VIK_GTK_WINDOW_FROM_LAYER(vdl), tmp, | |
1026 | (vik_thr_func) dem_download_thread, p, | |
1027 | (vik_thr_free_func) free_dem_download_params, NULL, 1 ); | |
0c1044e9 EB |
1028 | } |
1029 | ||
8c721f83 EB |
1030 | g_free ( dem_file ); |
1031 | g_free ( full_path ); | |
1032 | ||
0c1044e9 EB |
1033 | return TRUE; |
1034 | } | |
1035 | ||
1036 | static gboolean dem_layer_download_click ( VikDEMLayer *vdl, GdkEventButton *event, VikViewport *vvp ) | |
1037 | { | |
1038 | /* choose & keep track of cache dir | |
1039 | * download in background thread | |
1040 | * download over area */ | |
1041 | return TRUE; | |
1042 | } | |
1043 | ||
1044 |