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Another text truncate fix (map crash)
1 | harbaum | 71 | /* -*- Mode: C; indent-tabs-mode: nil; c-basic-offset: 4; tab-width: 4 -*- */ |
2 | /* vim:set et sw=4 ts=4 cino=t0,(0: */ | ||
3 | harbaum | 70 | /* |
4 | * Copyright (C) Till Harbaum 2009 <till@harbaum.org> | ||
5 | * | ||
6 | * osm-gps-map is free software: you can redistribute it and/or modify it | ||
7 | * under the terms of the GNU General Public License as published by the | ||
8 | * Free Software Foundation, either version 3 of the License, or | ||
9 | * (at your option) any later version. | ||
10 | * | ||
11 | * osm-gps-map is distributed in the hope that it will be useful, but | ||
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
14 | * See the GNU General Public License for more details. | ||
15 | * | ||
16 | * You should have received a copy of the GNU General Public License along | ||
17 | * with this program. If not, see <http://www.gnu.org/licenses/>. | ||
18 | */ | ||
19 | |||
20 | harbaum | 73 | #include "config.h" |
21 | #include <stdlib.h> // abs | ||
22 | harbaum | 124 | #include <string.h> |
23 | harbaum | 87 | #include <math.h> // M_PI/cos() |
24 | harbaum | 70 | |
25 | harbaum | 71 | /* parameters that can be overwritten from the config file: */ |
26 | harbaum | 77 | /* OSD_DIAMETER */ |
27 | /* OSD_X, OSD_Y */ | ||
28 | harbaum | 71 | |
29 | #ifndef USE_CAIRO | ||
30 | #error "OSD control display lacks a non-cairo implementation!" | ||
31 | harbaum | 70 | #endif |
32 | |||
33 | harbaum | 71 | #include <cairo.h> |
34 | |||
35 | #include "osm-gps-map.h" | ||
36 | harbaum | 112 | #include "converter.h" |
37 | harbaum | 73 | #include "osm-gps-map-osd-classic.h" |
38 | harbaum | 71 | |
39 | harbaum | 70 | //the osd controls |
40 | typedef struct { | ||
41 | harbaum | 74 | /* the offscreen representation of the OSD */ |
42 | harbaum | 108 | struct { |
43 | cairo_surface_t *surface; | ||
44 | gboolean rendered; | ||
45 | #ifdef OSD_GPS_BUTTON | ||
46 | gboolean gps_enabled; | ||
47 | #endif | ||
48 | } controls; | ||
49 | harbaum | 86 | |
50 | harbaum | 112 | #ifdef OSD_BALLOON |
51 | //a balloon with additional info | ||
52 | struct { | ||
53 | cairo_surface_t *surface; | ||
54 | harbaum | 113 | int orientation, offset_x, offset_y; |
55 | harbaum | 112 | |
56 | harbaum | 114 | gboolean just_created; |
57 | harbaum | 112 | float lat, lon; |
58 | OsmGpsMapRect_t rect; | ||
59 | |||
60 | /* function called to have the user app draw the contents */ | ||
61 | OsmGpsMapBalloonCallback cb; | ||
62 | gpointer data; | ||
63 | } balloon; | ||
64 | #endif | ||
65 | |||
66 | harbaum | 98 | #ifdef OSD_SCALE |
67 | harbaum | 110 | struct { |
68 | cairo_surface_t *surface; | ||
69 | int zoom; | ||
70 | } scale; | ||
71 | harbaum | 98 | #endif |
72 | harbaum | 110 | |
73 | harbaum | 105 | #ifdef OSD_CROSSHAIR |
74 | harbaum | 110 | struct { |
75 | cairo_surface_t *surface; | ||
76 | gboolean rendered; | ||
77 | } crosshair; | ||
78 | harbaum | 105 | #endif |
79 | |||
80 | harbaum | 122 | #ifdef OSD_NAV |
81 | struct { | ||
82 | cairo_surface_t *surface; | ||
83 | harbaum | 123 | float lat, lon; |
84 | char *name; | ||
85 | harbaum | 133 | gboolean imperial; // display distance imperial/metric |
86 | harbaum | 122 | } nav; |
87 | #endif | ||
88 | |||
89 | harbaum | 106 | #ifdef OSD_COORDINATES |
90 | harbaum | 110 | struct { |
91 | cairo_surface_t *surface; | ||
92 | float lat, lon; | ||
93 | } coordinates; | ||
94 | harbaum | 106 | #endif |
95 | |||
96 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
97 | harbaum | 110 | struct { |
98 | /* values to handle the "source" menu */ | ||
99 | cairo_surface_t *surface; | ||
100 | gboolean expanded; | ||
101 | gint shift, dir, count; | ||
102 | gint handler_id; | ||
103 | gint width, height; | ||
104 | harbaum | 111 | gboolean rendered; |
105 | harbaum | 110 | } source_sel; |
106 | harbaum | 88 | #endif |
107 | harbaum | 87 | |
108 | harbaum | 70 | } osd_priv_t; |
109 | |||
110 | harbaum | 112 | #ifdef OSD_BALLOON |
111 | /* most visual effects are hardcoded by now, but may be made */ | ||
112 | /* available via properties later */ | ||
113 | #ifndef BALLOON_AREA_WIDTH | ||
114 | #define BALLOON_AREA_WIDTH 290 | ||
115 | #endif | ||
116 | #ifndef BALLOON_AREA_HEIGHT | ||
117 | #define BALLOON_AREA_HEIGHT 75 | ||
118 | #endif | ||
119 | #ifndef BALLOON_CORNER_RADIUS | ||
120 | #define BALLOON_CORNER_RADIUS 10 | ||
121 | #endif | ||
122 | |||
123 | #define BALLOON_BORDER (BALLOON_CORNER_RADIUS/2) | ||
124 | #define BALLOON_WIDTH (BALLOON_AREA_WIDTH + 2 * BALLOON_BORDER) | ||
125 | #define BALLOON_HEIGHT (BALLOON_AREA_HEIGHT + 2 * BALLOON_BORDER) | ||
126 | #define BALLOON_TRANSPARENCY 0.8 | ||
127 | #define POINTER_HEIGHT 20 | ||
128 | #define POINTER_FOOT_WIDTH 20 | ||
129 | #define POINTER_OFFSET (BALLOON_CORNER_RADIUS*3/4) | ||
130 | #define BALLOON_SHADOW (BALLOON_CORNER_RADIUS/2) | ||
131 | #define BALLOON_SHADOW_TRANSPARENCY 0.2 | ||
132 | |||
133 | harbaum | 113 | #define BALLOON_W (BALLOON_WIDTH + BALLOON_SHADOW) |
134 | #define BALLOON_H (BALLOON_HEIGHT + POINTER_HEIGHT + BALLOON_SHADOW) | ||
135 | |||
136 | harbaum | 112 | #define CLOSE_BUTTON_RADIUS (BALLOON_CORNER_RADIUS) |
137 | |||
138 | harbaum | 150 | #if 0 |
139 | harbaum | 143 | #define FIN printf("entering function %s\n", __func__); |
140 | #define FOUT printf("leaving function %s\n", __func__); | ||
141 | harbaum | 150 | #else |
142 | #define FIN ; | ||
143 | #define FOUT ; | ||
144 | #endif | ||
145 | harbaum | 112 | |
146 | /* draw the bubble shape. this is used twice, once for the shape and once */ | ||
147 | /* for the shadow */ | ||
148 | static void | ||
149 | osm_gps_map_draw_balloon_shape (cairo_t *cr, int x0, int y0, int x1, int y1, | ||
150 | gboolean bottom, int px, int py, int px0, int px1) { | ||
151 | |||
152 | harbaum | 143 | FIN; |
153 | |||
154 | harbaum | 112 | cairo_move_to (cr, x0, y0 + BALLOON_CORNER_RADIUS); |
155 | cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS, | ||
156 | BALLOON_CORNER_RADIUS, -M_PI, -M_PI/2); | ||
157 | if(!bottom) { | ||
158 | /* insert top pointer */ | ||
159 | cairo_line_to (cr, px1, y0); | ||
160 | cairo_line_to (cr, px, py); | ||
161 | cairo_line_to (cr, px0, y0); | ||
162 | } | ||
163 | |||
164 | cairo_line_to (cr, x1 - BALLOON_CORNER_RADIUS, y0); | ||
165 | cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y0 + BALLOON_CORNER_RADIUS, | ||
166 | BALLOON_CORNER_RADIUS, -M_PI/2, 0); | ||
167 | cairo_line_to (cr, x1 , y1 - BALLOON_CORNER_RADIUS); | ||
168 | cairo_arc (cr, x1 - BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS, | ||
169 | BALLOON_CORNER_RADIUS, 0, M_PI/2); | ||
170 | if(bottom) { | ||
171 | /* insert bottom pointer */ | ||
172 | cairo_line_to (cr, px0, y1); | ||
173 | cairo_line_to (cr, px, py); | ||
174 | cairo_line_to (cr, px1, y1); | ||
175 | } | ||
176 | |||
177 | cairo_line_to (cr, x0 + BALLOON_CORNER_RADIUS, y1); | ||
178 | cairo_arc (cr, x0 + BALLOON_CORNER_RADIUS, y1 - BALLOON_CORNER_RADIUS, | ||
179 | BALLOON_CORNER_RADIUS, M_PI/2, M_PI); | ||
180 | |||
181 | cairo_close_path (cr); | ||
182 | harbaum | 143 | |
183 | FOUT; | ||
184 | harbaum | 112 | } |
185 | |||
186 | static void | ||
187 | osd_render_balloon(osm_gps_map_osd_t *osd) { | ||
188 | harbaum | 143 | FIN; |
189 | |||
190 | harbaum | 112 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
191 | |||
192 | harbaum | 150 | if(!priv->balloon.surface) |
193 | return; | ||
194 | |||
195 | harbaum | 112 | /* get zoom */ |
196 | gint zoom; | ||
197 | g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); | ||
198 | |||
199 | /* ------- convert given coordinate into screen position --------- */ | ||
200 | harbaum | 113 | gint xs, ys; |
201 | harbaum | 112 | osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), |
202 | priv->balloon.lat, priv->balloon.lon, | ||
203 | harbaum | 113 | &xs, &ys); |
204 | harbaum | 112 | |
205 | harbaum | 113 | gint x0 = 1, y0 = 1; |
206 | |||
207 | harbaum | 112 | /* check position of this relative to screen center to determine */ |
208 | /* pointer direction ... */ | ||
209 | harbaum | 113 | int pointer_x, pointer_x0, pointer_x1; |
210 | int pointer_y; | ||
211 | harbaum | 112 | |
212 | /* ... and calculate position */ | ||
213 | harbaum | 113 | int orientation = 0; |
214 | if(xs > osd->widget->allocation.width/2) { | ||
215 | priv->balloon.offset_x = -BALLOON_WIDTH + POINTER_OFFSET; | ||
216 | pointer_x = x0 - priv->balloon.offset_x; | ||
217 | harbaum | 112 | pointer_x0 = pointer_x - (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
218 | pointer_x1 = pointer_x0 - POINTER_FOOT_WIDTH; | ||
219 | harbaum | 113 | orientation |= 1; |
220 | harbaum | 112 | } else { |
221 | harbaum | 113 | priv->balloon.offset_x = -POINTER_OFFSET; |
222 | pointer_x = x0 - priv->balloon.offset_x; | ||
223 | harbaum | 112 | pointer_x1 = pointer_x + (BALLOON_CORNER_RADIUS - POINTER_OFFSET); |
224 | pointer_x0 = pointer_x1 + POINTER_FOOT_WIDTH; | ||
225 | } | ||
226 | |||
227 | gboolean bottom = FALSE; | ||
228 | harbaum | 113 | if(ys > osd->widget->allocation.height/2) { |
229 | priv->balloon.offset_y = -BALLOON_HEIGHT - POINTER_HEIGHT; | ||
230 | pointer_y = y0 - priv->balloon.offset_y; | ||
231 | harbaum | 112 | bottom = TRUE; |
232 | harbaum | 113 | orientation |= 2; |
233 | } else { | ||
234 | priv->balloon.offset_y = 0; | ||
235 | pointer_y = y0 - priv->balloon.offset_y; | ||
236 | harbaum | 112 | y0 += POINTER_HEIGHT; |
237 | harbaum | 113 | } |
238 | harbaum | 112 | |
239 | harbaum | 113 | /* if required orientation equals current one, then don't render */ |
240 | /* anything */ | ||
241 | if(orientation == priv->balloon.orientation) | ||
242 | return; | ||
243 | |||
244 | priv->balloon.orientation = orientation; | ||
245 | |||
246 | harbaum | 112 | /* calculate bottom/right of box */ |
247 | int x1 = x0 + BALLOON_WIDTH, y1 = y0 + BALLOON_HEIGHT; | ||
248 | |||
249 | /* save balloon screen coordinates for later use */ | ||
250 | priv->balloon.rect.x = x0 + BALLOON_BORDER; | ||
251 | priv->balloon.rect.y = y0 + BALLOON_BORDER; | ||
252 | priv->balloon.rect.w = x1 - x0 - 2*BALLOON_BORDER; | ||
253 | priv->balloon.rect.h = y1 - y0 - 2*BALLOON_BORDER; | ||
254 | |||
255 | harbaum | 152 | g_assert(priv->balloon.surface); |
256 | harbaum | 112 | cairo_t *cr = cairo_create(priv->balloon.surface); |
257 | harbaum | 113 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
258 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); | ||
259 | cairo_paint(cr); | ||
260 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
261 | harbaum | 112 | |
262 | /* --------- draw shadow --------------- */ | ||
263 | osm_gps_map_draw_balloon_shape (cr, | ||
264 | x0 + BALLOON_SHADOW, y0 + BALLOON_SHADOW, | ||
265 | x1 + BALLOON_SHADOW, y1 + BALLOON_SHADOW, | ||
266 | bottom, pointer_x, pointer_y, | ||
267 | pointer_x0 + BALLOON_SHADOW, pointer_x1 + BALLOON_SHADOW); | ||
268 | |||
269 | cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_SHADOW_TRANSPARENCY); | ||
270 | cairo_fill_preserve (cr); | ||
271 | cairo_set_source_rgba (cr, 1, 0, 0, 1.0); | ||
272 | cairo_set_line_width (cr, 0); | ||
273 | cairo_stroke (cr); | ||
274 | |||
275 | /* --------- draw main shape ----------- */ | ||
276 | osm_gps_map_draw_balloon_shape (cr, x0, y0, x1, y1, | ||
277 | bottom, pointer_x, pointer_y, pointer_x0, pointer_x1); | ||
278 | |||
279 | cairo_set_source_rgba (cr, 1, 1, 1, BALLOON_TRANSPARENCY); | ||
280 | cairo_fill_preserve (cr); | ||
281 | cairo_set_source_rgba (cr, 0, 0, 0, BALLOON_TRANSPARENCY); | ||
282 | cairo_set_line_width (cr, 1); | ||
283 | cairo_stroke (cr); | ||
284 | |||
285 | if (priv->balloon.cb) { | ||
286 | harbaum | 136 | osm_gps_map_balloon_event_t event; |
287 | |||
288 | harbaum | 112 | /* clip in case application tries to draw in */ |
289 | /* exceed of the balloon */ | ||
290 | cairo_rectangle (cr, priv->balloon.rect.x, priv->balloon.rect.y, | ||
291 | priv->balloon.rect.w, priv->balloon.rect.h); | ||
292 | cairo_clip (cr); | ||
293 | harbaum | 136 | cairo_new_path (cr); /* current path is not consumed by cairo_clip */ |
294 | |||
295 | /* request the application to draw the balloon contents */ | ||
296 | event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_DRAW; | ||
297 | event.data.draw.rect = &priv->balloon.rect; | ||
298 | event.data.draw.cr = cr; | ||
299 | harbaum | 112 | |
300 | harbaum | 136 | priv->balloon.cb(&event, priv->balloon.data); |
301 | harbaum | 112 | } |
302 | harbaum | 113 | |
303 | harbaum | 112 | cairo_destroy(cr); |
304 | harbaum | 143 | |
305 | FOUT; | ||
306 | harbaum | 112 | } |
307 | |||
308 | /* return true if balloon is being displayed and if */ | ||
309 | /* the given coordinate is within this balloon */ | ||
310 | static gboolean | ||
311 | harbaum | 136 | osd_balloon_check(osm_gps_map_osd_t *osd, gboolean click, gboolean down, gint x, gint y) |
312 | harbaum | 112 | { |
313 | harbaum | 143 | FIN; |
314 | |||
315 | harbaum | 113 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
316 | harbaum | 112 | |
317 | harbaum | 113 | if(!priv->balloon.surface) |
318 | harbaum | 112 | return FALSE; |
319 | |||
320 | harbaum | 113 | gint xs, ys; |
321 | osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), | ||
322 | priv->balloon.lat, priv->balloon.lon, | ||
323 | &xs, &ys); | ||
324 | harbaum | 112 | |
325 | harbaum | 113 | xs += priv->balloon.rect.x + priv->balloon.offset_x; |
326 | ys += priv->balloon.rect.y + priv->balloon.offset_y; | ||
327 | harbaum | 112 | |
328 | harbaum | 114 | gboolean is_in = |
329 | (x > xs) && (x < xs + priv->balloon.rect.w) && | ||
330 | (y > ys) && (y < ys + priv->balloon.rect.h); | ||
331 | |||
332 | harbaum | 136 | /* is this a real click or is the application just checking for something? */ |
333 | if(click) { | ||
334 | harbaum | 114 | |
335 | harbaum | 136 | /* handle the fact that the balloon may have been created by the */ |
336 | /* button down event */ | ||
337 | if(!is_in && !down && !priv->balloon.just_created) { | ||
338 | /* the user actually clicked outside the balloon */ | ||
339 | |||
340 | /* close the balloon! */ | ||
341 | osm_gps_map_osd_clear_balloon (OSM_GPS_MAP(osd->widget)); | ||
342 | |||
343 | /* and inform application about this */ | ||
344 | if(priv->balloon.cb) { | ||
345 | osm_gps_map_balloon_event_t event; | ||
346 | event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_REMOVED; | ||
347 | priv->balloon.cb(&event, priv->balloon.data); | ||
348 | } | ||
349 | |||
350 | } | ||
351 | |||
352 | if(is_in && priv->balloon.cb) { | ||
353 | osm_gps_map_balloon_event_t event; | ||
354 | |||
355 | /* notify application of click */ | ||
356 | event.type = OSM_GPS_MAP_BALLOON_EVENT_TYPE_CLICK; | ||
357 | event.data.click.x = x - xs; | ||
358 | event.data.click.y = y - ys; | ||
359 | event.data.click.down = down; | ||
360 | |||
361 | priv->balloon.cb(&event, priv->balloon.data); | ||
362 | } | ||
363 | harbaum | 114 | } |
364 | harbaum | 143 | FOUT; |
365 | harbaum | 114 | return is_in; |
366 | harbaum | 113 | } |
367 | harbaum | 112 | |
368 | harbaum | 113 | void osm_gps_map_osd_clear_balloon (OsmGpsMap *map) { |
369 | harbaum | 143 | FIN; |
370 | |||
371 | harbaum | 112 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
372 | |||
373 | harbaum | 113 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
374 | g_return_if_fail (osd); | ||
375 | harbaum | 112 | |
376 | harbaum | 113 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
377 | g_return_if_fail (priv); | ||
378 | harbaum | 112 | |
379 | harbaum | 113 | if(priv->balloon.surface) { |
380 | cairo_surface_destroy(priv->balloon.surface); | ||
381 | priv->balloon.surface = NULL; | ||
382 | priv->balloon.lat = OSM_GPS_MAP_INVALID; | ||
383 | priv->balloon.lon = OSM_GPS_MAP_INVALID; | ||
384 | } | ||
385 | osm_gps_map_redraw(map); | ||
386 | harbaum | 143 | FOUT; |
387 | harbaum | 112 | } |
388 | |||
389 | void | ||
390 | harbaum | 113 | osm_gps_map_osd_draw_balloon (OsmGpsMap *map, float latitude, float longitude, |
391 | OsmGpsMapBalloonCallback cb, gpointer data) { | ||
392 | harbaum | 143 | FIN; |
393 | harbaum | 112 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
394 | |||
395 | harbaum | 113 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
396 | g_return_if_fail (osd); | ||
397 | harbaum | 112 | |
398 | harbaum | 113 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
399 | g_return_if_fail (priv); | ||
400 | harbaum | 112 | |
401 | harbaum | 113 | osm_gps_map_osd_clear_balloon (map); |
402 | |||
403 | /* allocate balloon surface */ | ||
404 | priv->balloon.surface = | ||
405 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
406 | BALLOON_W+2, BALLOON_H+2); | ||
407 | |||
408 | priv->balloon.lat = latitude; | ||
409 | priv->balloon.lon = longitude; | ||
410 | priv->balloon.cb = cb; | ||
411 | priv->balloon.data = data; | ||
412 | harbaum | 114 | priv->balloon.just_created = TRUE; |
413 | harbaum | 113 | |
414 | priv->balloon.orientation = -1; | ||
415 | |||
416 | osd_render_balloon(osd); | ||
417 | |||
418 | osm_gps_map_redraw(map); | ||
419 | harbaum | 143 | FOUT; |
420 | harbaum | 112 | } |
421 | |||
422 | #endif // OSD_BALLOON | ||
423 | |||
424 | harbaum | 70 | /* position and extent of bounding box */ |
425 | harbaum | 77 | #ifndef OSD_X |
426 | harbaum | 70 | #define OSD_X (10) |
427 | harbaum | 77 | #endif |
428 | |||
429 | #ifndef OSD_Y | ||
430 | harbaum | 70 | #define OSD_Y (10) |
431 | harbaum | 77 | #endif |
432 | harbaum | 70 | |
433 | /* parameters of the direction shape */ | ||
434 | harbaum | 77 | #ifndef OSD_DIAMETER |
435 | harbaum | 70 | #define D_RAD (30) // diameter of dpad |
436 | #else | ||
437 | harbaum | 77 | #define D_RAD (OSD_DIAMETER) |
438 | harbaum | 70 | #endif |
439 | #define D_TIP (4*D_RAD/5) // distance of arrow tip from dpad center | ||
440 | #define D_LEN (D_RAD/4) // length of arrow | ||
441 | #define D_WID (D_LEN) // width of arrow | ||
442 | |||
443 | /* parameters of the "zoom" pad */ | ||
444 | #define Z_STEP (D_RAD/4) // distance between dpad and zoom | ||
445 | #define Z_RAD (D_RAD/2) // radius of "caps" of zoom bar | ||
446 | |||
447 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
448 | harbaum | 70 | /* shadow also depends on control size */ |
449 | #define OSD_SHADOW (D_RAD/6) | ||
450 | harbaum | 74 | #else |
451 | #define OSD_SHADOW (0) | ||
452 | #endif | ||
453 | harbaum | 70 | |
454 | harbaum | 77 | /* normally the GPS button is in the center of the dpad. if there's */ |
455 | /* no dpad it will go into the zoom area */ | ||
456 | #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD) | ||
457 | #define Z_GPS 1 | ||
458 | #else | ||
459 | #define Z_GPS 0 | ||
460 | #endif | ||
461 | |||
462 | harbaum | 70 | /* total width and height of controls incl. shadow */ |
463 | harbaum | 77 | #define OSD_W (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD) |
464 | #if !Z_GPS | ||
465 | harbaum | 70 | #define OSD_H (2*D_RAD + Z_STEP + 2*Z_RAD + OSD_SHADOW) |
466 | harbaum | 77 | #else |
467 | #define OSD_H (2*Z_RAD + OSD_SHADOW) | ||
468 | #endif | ||
469 | harbaum | 70 | |
470 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
471 | harbaum | 70 | #define OSD_LBL_SHADOW (OSD_SHADOW/2) |
472 | harbaum | 74 | #endif |
473 | harbaum | 70 | |
474 | harbaum | 77 | #define Z_TOP ((1-Z_GPS) * (2 * D_RAD + Z_STEP)) |
475 | |||
476 | harbaum | 70 | #define Z_MID (Z_TOP + Z_RAD) |
477 | #define Z_BOT (Z_MID + Z_RAD) | ||
478 | #define Z_LEFT (Z_RAD) | ||
479 | harbaum | 77 | #define Z_RIGHT (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD) |
480 | #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2) | ||
481 | harbaum | 70 | |
482 | /* create the cairo shape used for the zoom buttons */ | ||
483 | static void | ||
484 | harbaum | 86 | osd_zoom_shape(cairo_t *cr, gint x, gint y) |
485 | harbaum | 71 | { |
486 | harbaum | 70 | cairo_move_to (cr, x+Z_LEFT, y+Z_TOP); |
487 | cairo_line_to (cr, x+Z_RIGHT, y+Z_TOP); | ||
488 | cairo_arc (cr, x+Z_RIGHT, y+Z_MID, Z_RAD, -M_PI/2, M_PI/2); | ||
489 | cairo_line_to (cr, x+Z_LEFT, y+Z_BOT); | ||
490 | cairo_arc (cr, x+Z_LEFT, y+Z_MID, Z_RAD, M_PI/2, -M_PI/2); | ||
491 | } | ||
492 | |||
493 | harbaum | 86 | /* ------------------- color/shadow functions ----------------- */ |
494 | |||
495 | #ifndef OSD_COLOR | ||
496 | /* if no color has been specified we just use the gdks default colors */ | ||
497 | static void | ||
498 | osd_labels(cairo_t *cr, gint width, gboolean enabled, | ||
499 | GdkColor *fg, GdkColor *disabled) { | ||
500 | if(enabled) gdk_cairo_set_source_color(cr, fg); | ||
501 | else gdk_cairo_set_source_color(cr, disabled); | ||
502 | cairo_set_line_width (cr, width); | ||
503 | } | ||
504 | #else | ||
505 | static void | ||
506 | osd_labels(cairo_t *cr, gint width, gboolean enabled) { | ||
507 | if(enabled) cairo_set_source_rgb (cr, OSD_COLOR); | ||
508 | else cairo_set_source_rgb (cr, OSD_COLOR_DISABLED); | ||
509 | cairo_set_line_width (cr, width); | ||
510 | } | ||
511 | #endif | ||
512 | |||
513 | #ifdef OSD_SHADOW_ENABLE | ||
514 | static void | ||
515 | osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) { | ||
516 | cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15); | ||
517 | cairo_set_line_width (cr, width); | ||
518 | } | ||
519 | #endif | ||
520 | |||
521 | harbaum | 76 | #ifndef OSD_NO_DPAD |
522 | harbaum | 70 | /* create the cairo shape used for the dpad */ |
523 | static void | ||
524 | harbaum | 86 | osd_dpad_shape(cairo_t *cr, gint x, gint y) |
525 | harbaum | 71 | { |
526 | harbaum | 70 | cairo_arc (cr, x+D_RAD, y+D_RAD, D_RAD, 0, 2 * M_PI); |
527 | } | ||
528 | harbaum | 76 | #endif |
529 | harbaum | 70 | |
530 | harbaum | 86 | #ifdef OSD_SHADOW_ENABLE |
531 | static void | ||
532 | osd_shape_shadow(cairo_t *cr) { | ||
533 | cairo_set_source_rgba (cr, 0, 0, 0, 0.2); | ||
534 | cairo_fill (cr); | ||
535 | cairo_stroke (cr); | ||
536 | } | ||
537 | #endif | ||
538 | |||
539 | #ifndef OSD_COLOR | ||
540 | /* if no color has been specified we just use the gdks default colors */ | ||
541 | static void | ||
542 | osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) { | ||
543 | gdk_cairo_set_source_color(cr, bg); | ||
544 | cairo_fill_preserve (cr); | ||
545 | gdk_cairo_set_source_color(cr, fg); | ||
546 | cairo_set_line_width (cr, 1); | ||
547 | cairo_stroke (cr); | ||
548 | } | ||
549 | #else | ||
550 | static void | ||
551 | osd_shape(cairo_t *cr) { | ||
552 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
553 | cairo_fill_preserve (cr); | ||
554 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
555 | cairo_set_line_width (cr, 1); | ||
556 | cairo_stroke (cr); | ||
557 | } | ||
558 | #endif | ||
559 | |||
560 | |||
561 | harbaum | 70 | static gboolean |
562 | osm_gps_map_in_circle(gint x, gint y, gint cx, gint cy, gint rad) | ||
563 | { | ||
564 | harbaum | 143 | FIN; |
565 | harbaum | 70 | return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad); |
566 | } | ||
567 | |||
568 | harbaum | 76 | #ifndef OSD_NO_DPAD |
569 | harbaum | 70 | /* check whether x/y is within the dpad */ |
570 | static osd_button_t | ||
571 | harbaum | 86 | osd_check_dpad(gint x, gint y) |
572 | harbaum | 70 | { |
573 | /* within entire dpad circle */ | ||
574 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, D_RAD, D_RAD, D_RAD)) |
575 | harbaum | 70 | { |
576 | /* convert into position relative to dpads centre */ | ||
577 | harbaum | 77 | x -= D_RAD; |
578 | y -= D_RAD; | ||
579 | harbaum | 70 | |
580 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
581 | harbaum | 70 | /* check for dpad center goes here! */ |
582 | if( osm_gps_map_in_circle(x, y, 0, 0, D_RAD/3)) | ||
583 | return OSD_GPS; | ||
584 | harbaum | 76 | #endif |
585 | harbaum | 70 | |
586 | if( y < 0 && abs(x) < abs(y)) | ||
587 | return OSD_UP; | ||
588 | |||
589 | if( y > 0 && abs(x) < abs(y)) | ||
590 | return OSD_DOWN; | ||
591 | |||
592 | if( x < 0 && abs(y) < abs(x)) | ||
593 | return OSD_LEFT; | ||
594 | |||
595 | if( x > 0 && abs(y) < abs(x)) | ||
596 | return OSD_RIGHT; | ||
597 | |||
598 | return OSD_BG; | ||
599 | } | ||
600 | return OSD_NONE; | ||
601 | } | ||
602 | harbaum | 76 | #endif |
603 | harbaum | 70 | |
604 | /* check whether x/y is within the zoom pads */ | ||
605 | static osd_button_t | ||
606 | harbaum | 86 | osd_check_zoom(gint x, gint y) { |
607 | harbaum | 77 | if( x > 0 && x < OSD_W && y > Z_TOP && y < Z_BOT) { |
608 | harbaum | 70 | |
609 | /* within circle around (-) label */ | ||
610 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, Z_LEFT, Z_MID, Z_RAD)) |
611 | harbaum | 70 | return OSD_OUT; |
612 | |||
613 | harbaum | 77 | /* within circle around (+) label */ |
614 | if( osm_gps_map_in_circle(x, y, Z_RIGHT, Z_MID, Z_RAD)) | ||
615 | return OSD_IN; | ||
616 | |||
617 | #if Z_GPS == 1 | ||
618 | /* within square around center */ | ||
619 | if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD) | ||
620 | return OSD_GPS; | ||
621 | #endif | ||
622 | |||
623 | harbaum | 70 | /* between center of (-) button and center of entire zoom control area */ |
624 | harbaum | 77 | if(x > OSD_LEFT && x < D_RAD) |
625 | harbaum | 70 | return OSD_OUT; |
626 | |||
627 | /* between center of (+) button and center of entire zoom control area */ | ||
628 | harbaum | 77 | if(x < OSD_RIGHT && x > D_RAD) |
629 | harbaum | 70 | return OSD_IN; |
630 | } | ||
631 | |||
632 | return OSD_NONE; | ||
633 | } | ||
634 | |||
635 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
636 | |||
637 | harbaum | 86 | /* place source selection at right border */ |
638 | #define OSD_S_RAD (Z_RAD) | ||
639 | #define OSD_S_X (-OSD_X) | ||
640 | #define OSD_S_Y (OSD_Y) | ||
641 | #define OSD_S_PW (2 * Z_RAD) | ||
642 | #define OSD_S_W (OSD_S_PW) | ||
643 | #define OSD_S_PH (2 * Z_RAD) | ||
644 | #define OSD_S_H (OSD_S_PH + OSD_SHADOW) | ||
645 | |||
646 | harbaum | 87 | /* size of usable area when expanded */ |
647 | harbaum | 110 | #define OSD_S_AREA_W (priv->source_sel.width) |
648 | #define OSD_S_AREA_H (priv->source_sel.height) | ||
649 | harbaum | 86 | #define OSD_S_EXP_W (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW) |
650 | #define OSD_S_EXP_H (OSD_S_AREA_H + OSD_SHADOW) | ||
651 | |||
652 | /* internal value to draw the arrow on the "puller" */ | ||
653 | #define OSD_S_D0 (OSD_S_RAD/2) | ||
654 | harbaum | 87 | #ifndef OSD_FONT_SIZE |
655 | harbaum | 146 | #define OSD_FONT_SIZE (16.0) |
656 | harbaum | 87 | #endif |
657 | #define OSD_TEXT_BORDER (OSD_FONT_SIZE/2) | ||
658 | #define OSD_TEXT_SKIP (OSD_FONT_SIZE/8) | ||
659 | harbaum | 86 | |
660 | harbaum | 88 | /* draw the shape of the source selection OSD, either only the puller (not expanded) */ |
661 | /* or the entire menu incl. the puller (expanded) */ | ||
662 | harbaum | 86 | static void |
663 | osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) { | ||
664 | harbaum | 110 | if(!priv->source_sel.expanded) { |
665 | harbaum | 86 | /* just draw the puller */ |
666 | cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
667 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
668 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
669 | } else { | ||
670 | /* draw the puller and the area itself */ | ||
671 | cairo_move_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y + OSD_S_AREA_H); | ||
672 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H); | ||
673 | if(OSD_S_Y > 0) { | ||
674 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
675 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
676 | } else { | ||
677 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_AREA_H-OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
678 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H - OSD_S_PH); | ||
679 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
680 | } | ||
681 | cairo_line_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y); | ||
682 | cairo_close_path (cr); | ||
683 | } | ||
684 | } | ||
685 | |||
686 | static void | ||
687 | harbaum | 87 | osd_source_content(osm_gps_map_osd_t *osd, cairo_t *cr, gint offset) { |
688 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
689 | harbaum | 86 | |
690 | harbaum | 87 | int py = offset + OSD_S_RAD - OSD_S_D0; |
691 | |||
692 | harbaum | 110 | if(!priv->source_sel.expanded) { |
693 | harbaum | 86 | /* draw the "puller" open (<) arrow */ |
694 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py); |
695 | harbaum | 86 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); |
696 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); | ||
697 | } else { | ||
698 | if(OSD_S_Y < 0) | ||
699 | harbaum | 87 | py += OSD_S_AREA_H - OSD_S_PH; |
700 | harbaum | 86 | |
701 | /* draw the "puller" close (>) arrow */ | ||
702 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD - OSD_S_D0/2, py); |
703 | harbaum | 86 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); |
704 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); | ||
705 | harbaum | 87 | cairo_stroke(cr); |
706 | |||
707 | /* don't draw a shadow for the text content */ | ||
708 | if(offset == 1) { | ||
709 | gint source; | ||
710 | g_object_get(osd->widget, "map-source", &source, NULL); | ||
711 | |||
712 | cairo_select_font_face (cr, "Sans", | ||
713 | CAIRO_FONT_SLANT_NORMAL, | ||
714 | CAIRO_FONT_WEIGHT_BOLD); | ||
715 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
716 | |||
717 | harbaum | 110 | int i, step = (priv->source_sel.height - 2*OSD_TEXT_BORDER) / |
718 | harbaum | 89 | OSM_GPS_MAP_SOURCE_LAST; |
719 | harbaum | 87 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { |
720 | cairo_text_extents_t extents; | ||
721 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
722 | cairo_text_extents (cr, src, &extents); | ||
723 | |||
724 | int x = offset + OSD_S_PW + OSD_TEXT_BORDER; | ||
725 | int y = offset + step * (i-1) + OSD_TEXT_BORDER; | ||
726 | |||
727 | /* draw filled rectangle if selected */ | ||
728 | if(source == i) { | ||
729 | cairo_rectangle(cr, x - OSD_TEXT_BORDER/2, | ||
730 | y - OSD_TEXT_SKIP, | ||
731 | harbaum | 110 | priv->source_sel.width - OSD_TEXT_BORDER, |
732 | harbaum | 87 | step + OSD_TEXT_SKIP); |
733 | cairo_fill(cr); | ||
734 | |||
735 | /* temprarily draw with background color */ | ||
736 | #ifndef OSD_COLOR | ||
737 | GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL]; | ||
738 | gdk_cairo_set_source_color(cr, &bg); | ||
739 | #else | ||
740 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
741 | #endif | ||
742 | } | ||
743 | |||
744 | cairo_move_to (cr, x, y + OSD_TEXT_SKIP - extents.y_bearing); | ||
745 | cairo_show_text (cr, src); | ||
746 | |||
747 | /* restore color */ | ||
748 | if(source == i) { | ||
749 | #ifndef OSD_COLOR | ||
750 | GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL]; | ||
751 | gdk_cairo_set_source_color(cr, &fg); | ||
752 | #else | ||
753 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
754 | #endif | ||
755 | } | ||
756 | } | ||
757 | } | ||
758 | harbaum | 86 | } |
759 | } | ||
760 | |||
761 | static void | ||
762 | harbaum | 111 | osd_render_source_sel(osm_gps_map_osd_t *osd, gboolean force_rerender) { |
763 | harbaum | 143 | FIN; |
764 | |||
765 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
766 | |||
767 | harbaum | 150 | if(!priv->source_sel.surface || |
768 | (priv->source_sel.rendered && !force_rerender)) | ||
769 | harbaum | 111 | return; |
770 | |||
771 | priv->source_sel.rendered = TRUE; | ||
772 | |||
773 | harbaum | 86 | #ifndef OSD_COLOR |
774 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
775 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
776 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
777 | #endif | ||
778 | |||
779 | /* draw source selector */ | ||
780 | harbaum | 152 | g_assert(priv->source_sel.surface); |
781 | harbaum | 110 | cairo_t *cr = cairo_create(priv->source_sel.surface); |
782 | harbaum | 86 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
783 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
784 | cairo_paint(cr); | ||
785 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
786 | |||
787 | #ifdef OSD_SHADOW_ENABLE | ||
788 | osd_source_shape(priv, cr, 1+OSD_SHADOW, 1+OSD_SHADOW); | ||
789 | osd_shape_shadow(cr); | ||
790 | #endif | ||
791 | |||
792 | osd_source_shape(priv, cr, 1, 1); | ||
793 | #ifndef OSD_COLOR | ||
794 | osd_shape(cr, &bg, &fg); | ||
795 | #else | ||
796 | osd_shape(cr); | ||
797 | #endif | ||
798 | |||
799 | #ifdef OSD_SHADOW_ENABLE | ||
800 | osd_labels_shadow(cr, Z_RAD/3, TRUE); | ||
801 | harbaum | 87 | osd_source_content(osd, cr, 1+OSD_LBL_SHADOW); |
802 | cairo_stroke (cr); | ||
803 | harbaum | 86 | #endif |
804 | #ifndef OSD_COLOR | ||
805 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); | ||
806 | #else | ||
807 | osd_labels(cr, Z_RAD/3, TRUE); | ||
808 | #endif | ||
809 | harbaum | 87 | osd_source_content(osd, cr, 1); |
810 | cairo_stroke (cr); | ||
811 | harbaum | 86 | |
812 | cairo_destroy(cr); | ||
813 | harbaum | 143 | FOUT; |
814 | harbaum | 86 | } |
815 | |||
816 | harbaum | 89 | /* re-allocate the buffer used to draw the menu. This is used */ |
817 | /* to collapse/expand the buffer */ | ||
818 | harbaum | 86 | static void |
819 | osd_source_reallocate(osm_gps_map_osd_t *osd) { | ||
820 | harbaum | 143 | FIN; |
821 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
822 | |||
823 | /* re-allocate offscreen bitmap */ | ||
824 | harbaum | 110 | g_assert (priv->source_sel.surface); |
825 | harbaum | 86 | |
826 | int w = OSD_S_W, h = OSD_S_H; | ||
827 | harbaum | 110 | if(priv->source_sel.expanded) { |
828 | harbaum | 87 | cairo_text_extents_t extents; |
829 | |||
830 | /* determine content size */ | ||
831 | harbaum | 152 | g_assert(priv->source_sel.surface); |
832 | harbaum | 110 | cairo_t *cr = cairo_create(priv->source_sel.surface); |
833 | harbaum | 87 | cairo_select_font_face (cr, "Sans", |
834 | CAIRO_FONT_SLANT_NORMAL, | ||
835 | CAIRO_FONT_WEIGHT_BOLD); | ||
836 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
837 | |||
838 | /* calculate menu size */ | ||
839 | int i, max_h = 0, max_w = 0; | ||
840 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { | ||
841 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
842 | cairo_text_extents (cr, src, &extents); | ||
843 | |||
844 | if(extents.width > max_w) max_w = extents.width; | ||
845 | if(extents.height > max_h) max_h = extents.height; | ||
846 | } | ||
847 | cairo_destroy(cr); | ||
848 | |||
849 | harbaum | 110 | priv->source_sel.width = max_w + 2*OSD_TEXT_BORDER; |
850 | priv->source_sel.height = OSM_GPS_MAP_SOURCE_LAST * | ||
851 | harbaum | 87 | (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER; |
852 | |||
853 | harbaum | 86 | w = OSD_S_EXP_W; |
854 | h = OSD_S_EXP_H; | ||
855 | } | ||
856 | |||
857 | harbaum | 110 | cairo_surface_destroy(priv->source_sel.surface); |
858 | priv->source_sel.surface = | ||
859 | harbaum | 86 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2); |
860 | |||
861 | harbaum | 111 | osd_render_source_sel(osd, TRUE); |
862 | harbaum | 143 | FOUT; |
863 | harbaum | 86 | } |
864 | |||
865 | #define OSD_HZ 15 | ||
866 | harbaum | 87 | #define OSD_TIME 500 |
867 | harbaum | 86 | |
868 | static gboolean osd_source_animate(gpointer data) { | ||
869 | harbaum | 143 | FIN; |
870 | harbaum | 86 | osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data; |
871 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
872 | int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X; | ||
873 | gboolean done = FALSE; | ||
874 | harbaum | 110 | priv->source_sel.count += priv->source_sel.dir; |
875 | harbaum | 86 | |
876 | /* shifting in */ | ||
877 | harbaum | 110 | if(priv->source_sel.dir < 0) { |
878 | if(priv->source_sel.count <= 0) { | ||
879 | priv->source_sel.count = 0; | ||
880 | harbaum | 86 | done = TRUE; |
881 | } | ||
882 | } else { | ||
883 | harbaum | 110 | if(priv->source_sel.count >= 1000) { |
884 | priv->source_sel.expanded = FALSE; | ||
885 | harbaum | 86 | osd_source_reallocate(osd); |
886 | |||
887 | harbaum | 110 | priv->source_sel.count = 1000; |
888 | harbaum | 86 | done = TRUE; |
889 | } | ||
890 | } | ||
891 | |||
892 | |||
893 | /* count runs linearly from 0 to 1000, map this nicely onto a position */ | ||
894 | |||
895 | harbaum | 111 | /* nice sinoid mapping */ |
896 | harbaum | 110 | float m = 0.5-cos(priv->source_sel.count * M_PI / 1000.0)/2; |
897 | harbaum | 111 | priv->source_sel.shift = |
898 | (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) + | ||
899 | harbaum | 86 | m * diff; |
900 | |||
901 | harbaum | 111 | /* make sure the screen is updated */ |
902 | harbaum | 86 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); |
903 | |||
904 | harbaum | 111 | /* stop animation if done */ |
905 | harbaum | 86 | if(done) |
906 | harbaum | 110 | priv->source_sel.handler_id = 0; |
907 | harbaum | 86 | |
908 | harbaum | 143 | FOUT; |
909 | harbaum | 86 | return !done; |
910 | } | ||
911 | |||
912 | /* switch between expand and collapse mode of source selection */ | ||
913 | static void | ||
914 | osd_source_toggle(osm_gps_map_osd_t *osd) | ||
915 | { | ||
916 | harbaum | 143 | FIN; |
917 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
918 | |||
919 | /* ignore clicks while animation is running */ | ||
920 | harbaum | 110 | if(priv->source_sel.handler_id) |
921 | harbaum | 86 | return; |
922 | |||
923 | harbaum | 111 | /* expand immediately, collapse is handle at the end of the */ |
924 | /* collapse animation */ | ||
925 | harbaum | 110 | if(!priv->source_sel.expanded) { |
926 | priv->source_sel.expanded = TRUE; | ||
927 | harbaum | 86 | osd_source_reallocate(osd); |
928 | |||
929 | harbaum | 110 | priv->source_sel.count = 1000; |
930 | priv->source_sel.shift = osd->widget->allocation.width - OSD_S_W; | ||
931 | priv->source_sel.dir = -1000/OSD_HZ; | ||
932 | harbaum | 86 | } else { |
933 | harbaum | 110 | priv->source_sel.count = 0; |
934 | harbaum | 111 | priv->source_sel.shift = osd->widget->allocation.width - |
935 | OSD_S_EXP_W + OSD_S_X; | ||
936 | harbaum | 110 | priv->source_sel.dir = +1000/OSD_HZ; |
937 | harbaum | 86 | } |
938 | |||
939 | harbaum | 111 | /* start timer to handle animation */ |
940 | priv->source_sel.handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, | ||
941 | osd_source_animate, osd); | ||
942 | harbaum | 143 | FOUT; |
943 | harbaum | 86 | } |
944 | |||
945 | harbaum | 89 | /* check if the user clicked inside the source selection area */ |
946 | harbaum | 70 | static osd_button_t |
947 | harbaum | 114 | osd_source_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) { |
948 | harbaum | 143 | FIN; |
949 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
950 | |||
951 | harbaum | 110 | if(!priv->source_sel.expanded) |
952 | harbaum | 86 | x -= osd->widget->allocation.width - OSD_S_W; |
953 | else | ||
954 | x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
955 | |||
956 | if(OSD_S_Y > 0) | ||
957 | y -= OSD_S_Y; | ||
958 | else | ||
959 | y -= osd->widget->allocation.height - OSD_S_PH + OSD_S_Y; | ||
960 | |||
961 | /* within square around puller? */ | ||
962 | if(y > 0 && y < OSD_S_PH && x > 0 && x < OSD_S_PW) { | ||
963 | /* really within puller shape? */ | ||
964 | if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) { | ||
965 | /* expand source selector */ | ||
966 | harbaum | 114 | if(down) |
967 | osd_source_toggle(osd); | ||
968 | harbaum | 86 | |
969 | /* tell upper layers that user clicked some background element */ | ||
970 | /* of the OSD */ | ||
971 | return OSD_BG; | ||
972 | } | ||
973 | } | ||
974 | harbaum | 88 | |
975 | /* check for clicks into data area */ | ||
976 | harbaum | 110 | if(priv->source_sel.expanded && !priv->source_sel.handler_id) { |
977 | harbaum | 94 | /* re-adjust from puller top to content top */ |
978 | if(OSD_S_Y < 0) | ||
979 | y += OSD_S_EXP_H - OSD_S_PH; | ||
980 | |||
981 | harbaum | 88 | if(x > OSD_S_PW && |
982 | x < OSD_S_PW + OSD_S_EXP_W && | ||
983 | y > 0 && | ||
984 | y < OSD_S_EXP_H) { | ||
985 | harbaum | 94 | |
986 | harbaum | 110 | int step = (priv->source_sel.height - 2*OSD_TEXT_BORDER) |
987 | harbaum | 89 | / OSM_GPS_MAP_SOURCE_LAST; |
988 | harbaum | 88 | |
989 | harbaum | 89 | y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP; |
990 | y /= step; | ||
991 | y += 1; | ||
992 | |||
993 | harbaum | 114 | if(down) { |
994 | gint old = 0; | ||
995 | g_object_get(osd->widget, "map-source", &old, NULL); | ||
996 | harbaum | 89 | |
997 | harbaum | 114 | if(y > OSM_GPS_MAP_SOURCE_NULL && |
998 | y <= OSM_GPS_MAP_SOURCE_LAST && | ||
999 | old != y) { | ||
1000 | g_object_set(osd->widget, "map-source", y, NULL); | ||
1001 | |||
1002 | osd_render_source_sel(osd, TRUE); | ||
1003 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); | ||
1004 | } | ||
1005 | harbaum | 89 | } |
1006 | harbaum | 143 | |
1007 | harbaum | 89 | /* return "clicked in OSD background" to prevent further */ |
1008 | /* processing by application */ | ||
1009 | harbaum | 88 | return OSD_BG; |
1010 | } | ||
1011 | } | ||
1012 | |||
1013 | harbaum | 143 | FOUT; |
1014 | harbaum | 86 | return OSD_NONE; |
1015 | } | ||
1016 | harbaum | 88 | #endif // OSD_SOURCE_SEL |
1017 | harbaum | 86 | |
1018 | static osd_button_t | ||
1019 | harbaum | 136 | osd_check_int(osm_gps_map_osd_t *osd, gboolean click, gboolean down, gint x, gint y) { |
1020 | harbaum | 143 | FIN; |
1021 | harbaum | 70 | osd_button_t but = OSD_NONE; |
1022 | |||
1023 | harbaum | 113 | #ifdef OSD_BALLOON |
1024 | harbaum | 114 | if(down) { |
1025 | /* needed to handle balloons that are created at click */ | ||
1026 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
1027 | priv->balloon.just_created = FALSE; | ||
1028 | } | ||
1029 | harbaum | 113 | #endif |
1030 | |||
1031 | harbaum | 86 | #ifdef OSD_SOURCE_SEL |
1032 | /* the source selection area is handles internally */ | ||
1033 | harbaum | 114 | but = osd_source_check(osd, down, x, y); |
1034 | harbaum | 86 | #endif |
1035 | harbaum | 114 | |
1036 | if(but == OSD_NONE) { | ||
1037 | harbaum | 120 | gint mx = x - OSD_X; |
1038 | gint my = y - OSD_Y; | ||
1039 | harbaum | 114 | |
1040 | if(OSD_X < 0) | ||
1041 | harbaum | 120 | mx -= (osd->widget->allocation.width - OSD_W); |
1042 | harbaum | 114 | |
1043 | if(OSD_Y < 0) | ||
1044 | harbaum | 120 | my -= (osd->widget->allocation.height - OSD_H); |
1045 | harbaum | 114 | |
1046 | /* first do a rough test for the OSD area. */ | ||
1047 | /* this is just to avoid an unnecessary detailed test */ | ||
1048 | harbaum | 120 | if(mx > 0 && mx < OSD_W && my > 0 && my < OSD_H) { |
1049 | harbaum | 76 | #ifndef OSD_NO_DPAD |
1050 | harbaum | 120 | but = osd_check_dpad(mx, my); |
1051 | harbaum | 76 | #endif |
1052 | harbaum | 114 | } |
1053 | harbaum | 70 | |
1054 | if(but == OSD_NONE) | ||
1055 | harbaum | 120 | but = osd_check_zoom(mx, my); |
1056 | harbaum | 70 | } |
1057 | |||
1058 | harbaum | 114 | #ifdef OSD_BALLOON |
1059 | if(but == OSD_NONE) { | ||
1060 | /* check if user clicked into balloon */ | ||
1061 | harbaum | 136 | if(osd_balloon_check(osd, click, down, x, y)) |
1062 | harbaum | 114 | but = OSD_BG; |
1063 | } | ||
1064 | #endif | ||
1065 | |||
1066 | harbaum | 143 | FOUT; |
1067 | harbaum | 70 | return but; |
1068 | } | ||
1069 | |||
1070 | harbaum | 76 | #ifndef OSD_NO_DPAD |
1071 | harbaum | 70 | static void |
1072 | harbaum | 86 | osd_dpad_labels(cairo_t *cr, gint x, gint y) { |
1073 | harbaum | 70 | /* move reference to dpad center */ |
1074 | x += D_RAD; | ||
1075 | y += D_RAD; | ||
1076 | |||
1077 | const static gint offset[][3][2] = { | ||
1078 | /* left arrow/triangle */ | ||
1079 | { { -D_TIP+D_LEN, -D_WID }, { -D_LEN, D_WID }, { +D_LEN, D_WID } }, | ||
1080 | /* right arrow/triangle */ | ||
1081 | { { +D_TIP-D_LEN, -D_WID }, { +D_LEN, D_WID }, { -D_LEN, D_WID } }, | ||
1082 | /* top arrow/triangle */ | ||
1083 | { { -D_WID, -D_TIP+D_LEN }, { D_WID, -D_LEN }, { D_WID, +D_LEN } }, | ||
1084 | /* bottom arrow/triangle */ | ||
1085 | { { -D_WID, +D_TIP-D_LEN }, { D_WID, +D_LEN }, { D_WID, -D_LEN } } | ||
1086 | }; | ||
1087 | |||
1088 | int i; | ||
1089 | for(i=0;i<4;i++) { | ||
1090 | cairo_move_to (cr, x + offset[i][0][0], y + offset[i][0][1]); | ||
1091 | cairo_rel_line_to (cr, offset[i][1][0], offset[i][1][1]); | ||
1092 | cairo_rel_line_to (cr, offset[i][2][0], offset[i][2][1]); | ||
1093 | } | ||
1094 | } | ||
1095 | harbaum | 76 | #endif |
1096 | harbaum | 70 | |
1097 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
1098 | /* draw the satellite dish icon in the center of the dpad */ | ||
1099 | harbaum | 77 | #define GPS_V0 (D_RAD/7) |
1100 | harbaum | 70 | #define GPS_V1 (D_RAD/10) |
1101 | #define GPS_V2 (D_RAD/5) | ||
1102 | |||
1103 | /* draw a satellite receiver dish */ | ||
1104 | harbaum | 77 | /* this is either drawn in the center of the dpad (if present) */ |
1105 | /* or in the middle of the zoom area */ | ||
1106 | harbaum | 70 | static void |
1107 | harbaum | 86 | osd_dpad_gps(cairo_t *cr, gint x, gint y) { |
1108 | harbaum | 70 | /* move reference to dpad center */ |
1109 | harbaum | 77 | x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3; |
1110 | y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0; | ||
1111 | harbaum | 70 | |
1112 | cairo_move_to (cr, x-GPS_V0, y+GPS_V0); | ||
1113 | cairo_rel_line_to (cr, +GPS_V0, -GPS_V0); | ||
1114 | cairo_rel_line_to (cr, +GPS_V0, +GPS_V0); | ||
1115 | cairo_close_path (cr); | ||
1116 | |||
1117 | cairo_move_to (cr, x+GPS_V1-GPS_V2, y-2*GPS_V2); | ||
1118 | cairo_curve_to (cr, x-GPS_V2, y, x+GPS_V1, y+GPS_V1, x+GPS_V1+GPS_V2, y); | ||
1119 | cairo_close_path (cr); | ||
1120 | |||
1121 | x += GPS_V1; | ||
1122 | cairo_move_to (cr, x, y-GPS_V2); | ||
1123 | cairo_rel_line_to (cr, +GPS_V1, -GPS_V1); | ||
1124 | } | ||
1125 | harbaum | 76 | #endif |
1126 | harbaum | 70 | |
1127 | #define Z_LEN (2*Z_RAD/3) | ||
1128 | |||
1129 | static void | ||
1130 | harbaum | 86 | osd_zoom_labels(cairo_t *cr, gint x, gint y) { |
1131 | harbaum | 70 | cairo_move_to (cr, x + Z_LEFT - Z_LEN, y + Z_MID); |
1132 | cairo_line_to (cr, x + Z_LEFT + Z_LEN, y + Z_MID); | ||
1133 | |||
1134 | cairo_move_to (cr, x + Z_RIGHT, y + Z_MID - Z_LEN); | ||
1135 | cairo_line_to (cr, x + Z_RIGHT, y + Z_MID + Z_LEN); | ||
1136 | cairo_move_to (cr, x + Z_RIGHT - Z_LEN, y + Z_MID); | ||
1137 | cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID); | ||
1138 | } | ||
1139 | |||
1140 | harbaum | 106 | #ifdef OSD_COORDINATES |
1141 | |||
1142 | harbaum | 107 | #ifndef OSD_COORDINATES_FONT_SIZE |
1143 | harbaum | 146 | #define OSD_COORDINATES_FONT_SIZE (12.0) |
1144 | harbaum | 107 | #endif |
1145 | |||
1146 | harbaum | 108 | #define OSD_COORDINATES_OFFSET (OSD_COORDINATES_FONT_SIZE/6) |
1147 | harbaum | 107 | |
1148 | harbaum | 108 | #define OSD_COORDINATES_W (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET) |
1149 | harbaum | 131 | #define OSD_COORDINATES_H (2*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET+OSD_COORDINATES_FONT_SIZE/4) |
1150 | harbaum | 108 | |
1151 | harbaum | 107 | /* these can be overwritten with versions that support */ |
1152 | /* localization */ | ||
1153 | #ifndef OSD_COORDINATES_CHR_N | ||
1154 | #define OSD_COORDINATES_CHR_N "N" | ||
1155 | #endif | ||
1156 | #ifndef OSD_COORDINATES_CHR_S | ||
1157 | #define OSD_COORDINATES_CHR_S "S" | ||
1158 | #endif | ||
1159 | #ifndef OSD_COORDINATES_CHR_E | ||
1160 | #define OSD_COORDINATES_CHR_E "E" | ||
1161 | #endif | ||
1162 | #ifndef OSD_COORDINATES_CHR_W | ||
1163 | #define OSD_COORDINATES_CHR_W "W" | ||
1164 | #endif | ||
1165 | |||
1166 | |||
1167 | |||
1168 | /* this is the classic geocaching notation */ | ||
1169 | static char | ||
1170 | *osd_latitude_str(float latitude) { | ||
1171 | char *c = OSD_COORDINATES_CHR_N; | ||
1172 | float integral, fractional; | ||
1173 | |||
1174 | if(isnan(latitude)) | ||
1175 | return NULL; | ||
1176 | |||
1177 | if(latitude < 0) { | ||
1178 | latitude = fabs(latitude); | ||
1179 | c = OSD_COORDINATES_CHR_S; | ||
1180 | } | ||
1181 | |||
1182 | fractional = modff(latitude, &integral); | ||
1183 | |||
1184 | return g_strdup_printf("%s %02d° %06.3f'", | ||
1185 | c, (int)integral, fractional*60.0); | ||
1186 | } | ||
1187 | |||
1188 | static char | ||
1189 | *osd_longitude_str(float longitude) { | ||
1190 | char *c = OSD_COORDINATES_CHR_E; | ||
1191 | float integral, fractional; | ||
1192 | |||
1193 | if(isnan(longitude)) | ||
1194 | return NULL; | ||
1195 | |||
1196 | if(longitude < 0) { | ||
1197 | longitude = fabs(longitude); | ||
1198 | c = OSD_COORDINATES_CHR_W; | ||
1199 | } | ||
1200 | |||
1201 | fractional = modff(longitude, &integral); | ||
1202 | |||
1203 | return g_strdup_printf("%s %03d° %06.3f'", | ||
1204 | c, (int)integral, fractional*60.0); | ||
1205 | } | ||
1206 | |||
1207 | harbaum | 124 | /* render a string at the given screen position */ |
1208 | static int | ||
1209 | osd_render_centered_text(cairo_t *cr, int y, int width, char *text) { | ||
1210 | harbaum | 143 | FIN; |
1211 | |||
1212 | if(!text) return y; | ||
1213 | |||
1214 | char *p = g_malloc(strlen(text)+4); // space for "...\n" | ||
1215 | strcpy(p, text); | ||
1216 | |||
1217 | harbaum | 124 | cairo_text_extents_t extents; |
1218 | harbaum | 152 | memset(&extents, 0, sizeof(cairo_text_extents_t)); |
1219 | harbaum | 124 | cairo_text_extents (cr, p, &extents); |
1220 | harbaum | 150 | g_assert(extents.width != 0.0); |
1221 | harbaum | 124 | |
1222 | /* check if text needs to be truncated */ | ||
1223 | harbaum | 152 | int trunc_at = strlen(text); |
1224 | harbaum | 124 | while(extents.width > width) { |
1225 | harbaum | 152 | |
1226 | /* cut off all utf8 multibyte remains so the actual */ | ||
1227 | /* truncation only deals with one byte */ | ||
1228 | while((p[trunc_at-1] & 0xc0) == 0x80) { | ||
1229 | trunc_at--; | ||
1230 | g_assert(trunc_at > 0); | ||
1231 | } | ||
1232 | |||
1233 | trunc_at--; | ||
1234 | harbaum | 144 | g_assert(trunc_at > 0); |
1235 | |||
1236 | harbaum | 143 | strcpy(p+trunc_at, "..."); |
1237 | harbaum | 124 | cairo_text_extents (cr, p, &extents); |
1238 | } | ||
1239 | |||
1240 | harbaum | 123 | cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); |
1241 | cairo_set_line_width (cr, OSD_COORDINATES_FONT_SIZE/6); | ||
1242 | harbaum | 124 | cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing); |
1243 | cairo_text_path (cr, p); | ||
1244 | harbaum | 123 | cairo_stroke (cr); |
1245 | |||
1246 | cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); | ||
1247 | harbaum | 124 | cairo_move_to (cr, (width - extents.width)/2, y - extents.y_bearing); |
1248 | cairo_show_text (cr, p); | ||
1249 | |||
1250 | g_free(p); | ||
1251 | |||
1252 | harbaum | 143 | /* skip + 1/5 line */ |
1253 | FOUT; | ||
1254 | return y + 6*OSD_COORDINATES_FONT_SIZE/5; | ||
1255 | harbaum | 123 | } |
1256 | |||
1257 | static void | ||
1258 | harbaum | 106 | osd_render_coordinates(osm_gps_map_osd_t *osd) |
1259 | { | ||
1260 | harbaum | 143 | FIN; |
1261 | harbaum | 106 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1262 | |||
1263 | harbaum | 150 | if(!priv->coordinates.surface) |
1264 | return; | ||
1265 | |||
1266 | harbaum | 107 | /* get current map position */ |
1267 | gfloat lat, lon; | ||
1268 | g_object_get(osd->widget, "latitude", &lat, "longitude", &lon, NULL); | ||
1269 | |||
1270 | harbaum | 108 | /* check if position has changed enough to require redraw */ |
1271 | harbaum | 110 | if(!isnan(priv->coordinates.lat) && !isnan(priv->coordinates.lon)) |
1272 | /* 1/60000 == 1/1000 minute */ | ||
1273 | if((fabsf(lat - priv->coordinates.lat) < 1/60000) && | ||
1274 | (fabsf(lon - priv->coordinates.lon) < 1/60000)) | ||
1275 | harbaum | 108 | return; |
1276 | |||
1277 | harbaum | 110 | priv->coordinates.lat = lat; |
1278 | priv->coordinates.lon = lon; | ||
1279 | harbaum | 108 | |
1280 | harbaum | 111 | /* first fill with transparency */ |
1281 | harbaum | 150 | |
1282 | harbaum | 152 | g_assert(priv->coordinates.surface); |
1283 | harbaum | 110 | cairo_t *cr = cairo_create(priv->coordinates.surface); |
1284 | harbaum | 106 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1285 | harbaum | 111 | // cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 0.5); |
1286 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); | ||
1287 | harbaum | 106 | cairo_paint(cr); |
1288 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
1289 | |||
1290 | harbaum | 107 | cairo_select_font_face (cr, "Sans", |
1291 | CAIRO_FONT_SLANT_NORMAL, | ||
1292 | CAIRO_FONT_WEIGHT_BOLD); | ||
1293 | cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE); | ||
1294 | |||
1295 | char *latitude = osd_latitude_str(lat); | ||
1296 | char *longitude = osd_longitude_str(lon); | ||
1297 | |||
1298 | harbaum | 124 | int y = OSD_COORDINATES_OFFSET; |
1299 | y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, latitude); | ||
1300 | y = osd_render_centered_text(cr, y, OSD_COORDINATES_W, longitude); | ||
1301 | harbaum | 123 | |
1302 | harbaum | 107 | g_free(latitude); |
1303 | g_free(longitude); | ||
1304 | |||
1305 | harbaum | 106 | cairo_destroy(cr); |
1306 | harbaum | 143 | FOUT; |
1307 | harbaum | 106 | } |
1308 | #endif // OSD_COORDINATES | ||
1309 | |||
1310 | harbaum | 122 | #ifdef OSD_NAV |
1311 | harbaum | 123 | #define OSD_NAV_W (8*OSD_COORDINATES_FONT_SIZE+2*OSD_COORDINATES_OFFSET) |
1312 | harbaum | 133 | #define OSD_NAV_H (11*OSD_COORDINATES_FONT_SIZE) |
1313 | harbaum | 122 | |
1314 | harbaum | 132 | /* http://mathforum.org/library/drmath/view/55417.html */ |
1315 | static float get_bearing(float lat1, float lon1, float lat2, float lon2) { | ||
1316 | return atan2( sin(lon2 - lon1) * cos(lat2), | ||
1317 | cos(lat1) * sin(lat2) - | ||
1318 | sin(lat1) * cos(lat2) * cos(lon2 - lon1)); | ||
1319 | } | ||
1320 | |||
1321 | /* http://mathforum.org/library/drmath/view/51722.html */ | ||
1322 | static float get_distance(float lat1, float lon1, float lat2, float lon2) { | ||
1323 | float aob = acos(cos(lat1) * cos(lat2) * cos(lon2 - lon1) + | ||
1324 | sin(lat1) * sin(lat2)); | ||
1325 | |||
1326 | // return(aob * 3959.0); /* great circle radius in miles */ | ||
1327 | |||
1328 | return(aob * 6371000.0); /* great circle radius in meters */ | ||
1329 | } | ||
1330 | |||
1331 | harbaum | 122 | static void |
1332 | osd_render_nav(osm_gps_map_osd_t *osd) | ||
1333 | { | ||
1334 | harbaum | 143 | FIN; |
1335 | harbaum | 122 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1336 | |||
1337 | harbaum | 123 | if(!priv->nav.surface || isnan(priv->nav.lat) || isnan(priv->nav.lon)) |
1338 | return; | ||
1339 | |||
1340 | harbaum | 122 | /* first fill with transparency */ |
1341 | harbaum | 152 | g_assert(priv->nav.surface); |
1342 | harbaum | 122 | cairo_t *cr = cairo_create(priv->nav.surface); |
1343 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | ||
1344 | harbaum | 132 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); |
1345 | harbaum | 122 | cairo_paint(cr); |
1346 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
1347 | |||
1348 | harbaum | 123 | cairo_select_font_face (cr, "Sans", |
1349 | CAIRO_FONT_SLANT_NORMAL, | ||
1350 | CAIRO_FONT_WEIGHT_BOLD); | ||
1351 | cairo_set_font_size (cr, OSD_COORDINATES_FONT_SIZE); | ||
1352 | |||
1353 | char *latitude = osd_latitude_str(priv->nav.lat); | ||
1354 | char *longitude = osd_longitude_str(priv->nav.lon); | ||
1355 | |||
1356 | harbaum | 124 | int y = OSD_COORDINATES_OFFSET; |
1357 | y = osd_render_centered_text(cr, y, OSD_NAV_W, priv->nav.name); | ||
1358 | y = osd_render_centered_text(cr, y, OSD_NAV_W, latitude); | ||
1359 | y = osd_render_centered_text(cr, y, OSD_NAV_W, longitude); | ||
1360 | harbaum | 123 | |
1361 | g_free(latitude); | ||
1362 | g_free(longitude); | ||
1363 | |||
1364 | harbaum | 131 | /* draw the compass */ |
1365 | int radius = (OSD_NAV_H - y - 5*OSD_COORDINATES_FONT_SIZE/4)/2; | ||
1366 | if(radius > OSD_NAV_W/2) | ||
1367 | radius = OSD_NAV_W/2; | ||
1368 | |||
1369 | int x = OSD_NAV_W/2+1; | ||
1370 | y += radius; | ||
1371 | |||
1372 | cairo_stroke (cr); | ||
1373 | |||
1374 | /* draw background */ | ||
1375 | cairo_arc(cr, x, y, radius, 0, 2*M_PI); | ||
1376 | cairo_set_source_rgba (cr, 1, 1, 1, 0.5); | ||
1377 | cairo_fill_preserve (cr); | ||
1378 | cairo_set_source_rgb (cr, 0, 0, 0); | ||
1379 | cairo_set_line_width (cr, 1); | ||
1380 | cairo_stroke (cr); | ||
1381 | |||
1382 | /* draw pointer */ | ||
1383 | #define ARROW_WIDTH 0.3 | ||
1384 | #define ARROW_LENGTH 0.7 | ||
1385 | |||
1386 | harbaum | 132 | coord_t *gps = osm_gps_map_get_gps (OSM_GPS_MAP(osd->widget)); |
1387 | if(gps) { | ||
1388 | float arot = get_bearing(gps->rlat, gps->rlon, | ||
1389 | deg2rad(priv->nav.lat), deg2rad(priv->nav.lon)); | ||
1390 | harbaum | 131 | |
1391 | harbaum | 132 | cairo_move_to(cr, |
1392 | x + radius * ARROW_LENGTH * sin(arot), | ||
1393 | y + radius * ARROW_LENGTH * -cos(arot)); | ||
1394 | |||
1395 | cairo_line_to(cr, | ||
1396 | x + radius * -ARROW_LENGTH * sin(arot+ARROW_WIDTH), | ||
1397 | y + radius * -ARROW_LENGTH * -cos(arot+ARROW_WIDTH)); | ||
1398 | |||
1399 | cairo_line_to(cr, | ||
1400 | x + radius * -0.5 * ARROW_LENGTH * sin(arot), | ||
1401 | y + radius * -0.5 * ARROW_LENGTH * -cos(arot)); | ||
1402 | |||
1403 | cairo_line_to(cr, | ||
1404 | x + radius * -ARROW_LENGTH * sin(arot-ARROW_WIDTH), | ||
1405 | y + radius * -ARROW_LENGTH * -cos(arot-ARROW_WIDTH)); | ||
1406 | |||
1407 | cairo_close_path(cr); | ||
1408 | cairo_set_source_rgb (cr, 0, 0, 0); | ||
1409 | cairo_fill (cr); | ||
1410 | harbaum | 131 | |
1411 | harbaum | 132 | y += radius + OSD_COORDINATES_FONT_SIZE/4; |
1412 | harbaum | 131 | |
1413 | harbaum | 132 | float dist = get_distance(gps->rlat, gps->rlon, |
1414 | deg2rad(priv->nav.lat), deg2rad(priv->nav.lon)); | ||
1415 | harbaum | 131 | |
1416 | harbaum | 132 | char *dist_str = NULL; |
1417 | harbaum | 133 | if(!priv->nav.imperial) { |
1418 | /* metric is easy ... */ | ||
1419 | if(dist<1000) | ||
1420 | dist_str = g_strdup_printf("%u m", (int)dist); | ||
1421 | else | ||
1422 | dist_str = g_strdup_printf("%.1f km", dist/1000); | ||
1423 | } else { | ||
1424 | /* and now the hard part: scale for useful imperial values :-( */ | ||
1425 | /* try to convert to feet, 1ft == 0.3048 m */ | ||
1426 | |||
1427 | if(dist/(3*0.3048) >= 1760.0) /* more than 1760 yard? */ | ||
1428 | dist_str = g_strdup_printf("%.1f mi", dist/(0.3048*3*1760.0)); | ||
1429 | else if(dist/0.3048 >= 100) /* more than 100 feet? */ | ||
1430 | dist_str = g_strdup_printf("%.1f yd", dist/(0.3048*3)); | ||
1431 | else | ||
1432 | dist_str = g_strdup_printf("%.0f ft", dist/0.3048); | ||
1433 | } | ||
1434 | harbaum | 132 | |
1435 | y = osd_render_centered_text(cr, y, OSD_NAV_W, dist_str); | ||
1436 | g_free(dist_str); | ||
1437 | } | ||
1438 | harbaum | 131 | |
1439 | harbaum | 122 | cairo_destroy(cr); |
1440 | harbaum | 143 | FOUT; |
1441 | harbaum | 122 | } |
1442 | |||
1443 | harbaum | 123 | void osm_gps_map_osd_clear_nav (OsmGpsMap *map) { |
1444 | harbaum | 143 | FIN; |
1445 | harbaum | 123 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
1446 | |||
1447 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); | ||
1448 | g_return_if_fail (osd); | ||
1449 | |||
1450 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
1451 | g_return_if_fail (priv); | ||
1452 | |||
1453 | if(priv->nav.surface) { | ||
1454 | cairo_surface_destroy(priv->nav.surface); | ||
1455 | priv->nav.surface = NULL; | ||
1456 | priv->nav.lat = OSM_GPS_MAP_INVALID; | ||
1457 | priv->nav.lon = OSM_GPS_MAP_INVALID; | ||
1458 | if(priv->nav.name) g_free(priv->nav.name); | ||
1459 | } | ||
1460 | osm_gps_map_redraw(map); | ||
1461 | harbaum | 143 | FOUT; |
1462 | harbaum | 123 | } |
1463 | |||
1464 | void | ||
1465 | harbaum | 133 | osm_gps_map_osd_draw_nav (OsmGpsMap *map, gboolean imperial, |
1466 | float latitude, float longitude, char *name) { | ||
1467 | harbaum | 143 | FIN; |
1468 | harbaum | 123 | g_return_if_fail (OSM_IS_GPS_MAP (map)); |
1469 | |||
1470 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); | ||
1471 | g_return_if_fail (osd); | ||
1472 | |||
1473 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
1474 | g_return_if_fail (priv); | ||
1475 | |||
1476 | osm_gps_map_osd_clear_nav (map); | ||
1477 | |||
1478 | /* allocate balloon surface */ | ||
1479 | priv->nav.surface = | ||
1480 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
1481 | OSD_NAV_W+2, OSD_NAV_H+2); | ||
1482 | |||
1483 | priv->nav.lat = latitude; | ||
1484 | priv->nav.lon = longitude; | ||
1485 | priv->nav.name = g_strdup(name); | ||
1486 | harbaum | 133 | priv->nav.imperial = imperial; |
1487 | harbaum | 123 | |
1488 | osd_render_nav(osd); | ||
1489 | |||
1490 | osm_gps_map_redraw(map); | ||
1491 | harbaum | 143 | FOUT; |
1492 | harbaum | 123 | } |
1493 | |||
1494 | harbaum | 122 | #endif // OSD_NAV |
1495 | |||
1496 | |||
1497 | harbaum | 105 | #ifdef OSD_CROSSHAIR |
1498 | |||
1499 | #ifndef OSD_CROSSHAIR_RADIUS | ||
1500 | harbaum | 106 | #define OSD_CROSSHAIR_RADIUS 10 |
1501 | harbaum | 105 | #endif |
1502 | |||
1503 | harbaum | 106 | #define OSD_CROSSHAIR_TICK (OSD_CROSSHAIR_RADIUS/2) |
1504 | #define OSD_CROSSHAIR_BORDER (OSD_CROSSHAIR_TICK + OSD_CROSSHAIR_RADIUS/4) | ||
1505 | #define OSD_CROSSHAIR_W ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2) | ||
1506 | #define OSD_CROSSHAIR_H ((OSD_CROSSHAIR_RADIUS+OSD_CROSSHAIR_BORDER)*2) | ||
1507 | harbaum | 105 | |
1508 | static void | ||
1509 | harbaum | 106 | osd_render_crosshair_shape(cairo_t *cr) { |
1510 | harbaum | 143 | FIN; |
1511 | harbaum | 106 | cairo_arc (cr, OSD_CROSSHAIR_W/2, OSD_CROSSHAIR_H/2, |
1512 | OSD_CROSSHAIR_RADIUS, 0, 2*M_PI); | ||
1513 | |||
1514 | cairo_move_to (cr, OSD_CROSSHAIR_W/2 - OSD_CROSSHAIR_RADIUS, | ||
1515 | OSD_CROSSHAIR_H/2); | ||
1516 | cairo_rel_line_to (cr, -OSD_CROSSHAIR_TICK, 0); | ||
1517 | cairo_move_to (cr, OSD_CROSSHAIR_W/2 + OSD_CROSSHAIR_RADIUS, | ||
1518 | OSD_CROSSHAIR_H/2); | ||
1519 | cairo_rel_line_to (cr, OSD_CROSSHAIR_TICK, 0); | ||
1520 | |||
1521 | cairo_move_to (cr, OSD_CROSSHAIR_W/2, | ||
1522 | OSD_CROSSHAIR_H/2 - OSD_CROSSHAIR_RADIUS); | ||
1523 | cairo_rel_line_to (cr, 0, -OSD_CROSSHAIR_TICK); | ||
1524 | cairo_move_to (cr, OSD_CROSSHAIR_W/2, | ||
1525 | OSD_CROSSHAIR_H/2 + OSD_CROSSHAIR_RADIUS); | ||
1526 | cairo_rel_line_to (cr, 0, OSD_CROSSHAIR_TICK); | ||
1527 | |||
1528 | cairo_stroke (cr); | ||
1529 | harbaum | 143 | FOUT; |
1530 | harbaum | 106 | } |
1531 | |||
1532 | static void | ||
1533 | harbaum | 105 | osd_render_crosshair(osm_gps_map_osd_t *osd) |
1534 | { | ||
1535 | harbaum | 143 | FIN; |
1536 | harbaum | 105 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1537 | |||
1538 | harbaum | 150 | if(!priv->crosshair.surface || priv->crosshair.rendered) |
1539 | harbaum | 110 | return; |
1540 | |||
1541 | priv->crosshair.rendered = TRUE; | ||
1542 | |||
1543 | harbaum | 105 | /* first fill with transparency */ |
1544 | harbaum | 152 | g_assert(priv->crosshair.surface); |
1545 | harbaum | 110 | cairo_t *cr = cairo_create(priv->crosshair.surface); |
1546 | harbaum | 105 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1547 | harbaum | 106 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 0.0); |
1548 | harbaum | 105 | cairo_paint(cr); |
1549 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
1550 | |||
1551 | harbaum | 106 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); |
1552 | |||
1553 | cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.5); | ||
1554 | cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/2); | ||
1555 | osd_render_crosshair_shape(cr); | ||
1556 | |||
1557 | cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.5); | ||
1558 | cairo_set_line_width (cr, OSD_CROSSHAIR_RADIUS/4); | ||
1559 | osd_render_crosshair_shape(cr); | ||
1560 | |||
1561 | harbaum | 105 | cairo_destroy(cr); |
1562 | harbaum | 143 | FOUT; |
1563 | harbaum | 105 | } |
1564 | #endif | ||
1565 | |||
1566 | #ifdef OSD_SCALE | ||
1567 | |||
1568 | #ifndef OSD_SCALE_FONT_SIZE | ||
1569 | harbaum | 146 | #define OSD_SCALE_FONT_SIZE (12.0) |
1570 | harbaum | 105 | #endif |
1571 | #define OSD_SCALE_W (10*OSD_SCALE_FONT_SIZE) | ||
1572 | #define OSD_SCALE_H (5*OSD_SCALE_FONT_SIZE/2) | ||
1573 | |||
1574 | harbaum | 103 | /* various parameters used to create the scale */ |
1575 | #define OSD_SCALE_H2 (OSD_SCALE_H/2) | ||
1576 | #define OSD_SCALE_TICK (2*OSD_SCALE_FONT_SIZE/3) | ||
1577 | #define OSD_SCALE_M (OSD_SCALE_H2 - OSD_SCALE_TICK) | ||
1578 | #define OSD_SCALE_I (OSD_SCALE_H2 + OSD_SCALE_TICK) | ||
1579 | #define OSD_SCALE_FD (OSD_SCALE_FONT_SIZE/4) | ||
1580 | harbaum | 99 | |
1581 | harbaum | 70 | static void |
1582 | harbaum | 98 | osd_render_scale(osm_gps_map_osd_t *osd) |
1583 | { | ||
1584 | harbaum | 143 | FIN; |
1585 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1586 | harbaum | 103 | |
1587 | harbaum | 150 | if(!priv->scale.surface) |
1588 | return; | ||
1589 | |||
1590 | harbaum | 103 | /* this only needs to be rendered if the zoom has changed */ |
1591 | gint zoom; | ||
1592 | g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); | ||
1593 | harbaum | 110 | if(zoom == priv->scale.zoom) |
1594 | harbaum | 103 | return; |
1595 | |||
1596 | harbaum | 110 | priv->scale.zoom = zoom; |
1597 | harbaum | 103 | |
1598 | harbaum | 99 | float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget)); |
1599 | harbaum | 70 | |
1600 | harbaum | 98 | /* first fill with transparency */ |
1601 | harbaum | 152 | g_assert(priv->scale.surface); |
1602 | harbaum | 110 | cairo_t *cr = cairo_create(priv->scale.surface); |
1603 | harbaum | 98 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1604 | harbaum | 100 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); |
1605 | harbaum | 103 | // pink for testing: cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2); |
1606 | harbaum | 98 | cairo_paint(cr); |
1607 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
1608 | |||
1609 | /* determine the size of the scale width in meters */ | ||
1610 | harbaum | 103 | float width = (OSD_SCALE_W-OSD_SCALE_FONT_SIZE/6) * m_per_pix; |
1611 | harbaum | 102 | |
1612 | harbaum | 98 | /* scale this to useful values */ |
1613 | int exp = logf(width)*M_LOG10E; | ||
1614 | int mant = width/pow(10,exp); | ||
1615 | harbaum | 99 | int width_metric = mant * pow(10,exp); |
1616 | harbaum | 103 | char *dist_str = NULL; |
1617 | if(width_metric<1000) | ||
1618 | dist_str = g_strdup_printf("%u m", width_metric); | ||
1619 | else | ||
1620 | dist_str = g_strdup_printf("%u km", width_metric/1000); | ||
1621 | harbaum | 99 | width_metric /= m_per_pix; |
1622 | |||
1623 | harbaum | 102 | /* and now the hard part: scale for useful imperial values :-( */ |
1624 | /* try to convert to feet, 1ft == 0.3048 m */ | ||
1625 | width /= 0.3048; | ||
1626 | float imp_scale = 0.3048; | ||
1627 | char *dist_imp_unit = "ft"; | ||
1628 | harbaum | 99 | |
1629 | harbaum | 102 | if(width >= 100) { |
1630 | /* 1yd == 3 feet */ | ||
1631 | width /= 3.0; | ||
1632 | imp_scale *= 3.0; | ||
1633 | dist_imp_unit = "yd"; | ||
1634 | |||
1635 | if(width >= 1760.0) { | ||
1636 | /* 1mi == 1760 yd */ | ||
1637 | width /= 1760.0; | ||
1638 | imp_scale *= 1760.0; | ||
1639 | dist_imp_unit = "mi"; | ||
1640 | } | ||
1641 | } | ||
1642 | |||
1643 | harbaum | 103 | /* also convert this to full tens/hundreds */ |
1644 | exp = logf(width)*M_LOG10E; | ||
1645 | mant = width/pow(10,exp); | ||
1646 | int width_imp = mant * pow(10,exp); | ||
1647 | char *dist_str_imp = g_strdup_printf("%u %s", width_imp, dist_imp_unit); | ||
1648 | harbaum | 102 | |
1649 | harbaum | 103 | /* convert back to pixels */ |
1650 | width_imp *= imp_scale; | ||
1651 | width_imp /= m_per_pix; | ||
1652 | |||
1653 | harbaum | 99 | cairo_select_font_face (cr, "Sans", |
1654 | CAIRO_FONT_SLANT_NORMAL, | ||
1655 | CAIRO_FONT_WEIGHT_BOLD); | ||
1656 | harbaum | 102 | cairo_set_font_size (cr, OSD_SCALE_FONT_SIZE); |
1657 | harbaum | 99 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); |
1658 | |||
1659 | cairo_text_extents_t extents; | ||
1660 | cairo_text_extents (cr, dist_str, &extents); | ||
1661 | |||
1662 | harbaum | 100 | cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); |
1663 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6); |
1664 | cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD); | ||
1665 | harbaum | 100 | cairo_text_path (cr, dist_str); |
1666 | cairo_stroke (cr); | ||
1667 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, |
1668 | OSD_SCALE_H2+OSD_SCALE_FD + extents.height); | ||
1669 | cairo_text_path (cr, dist_str_imp); | ||
1670 | cairo_stroke (cr); | ||
1671 | harbaum | 100 | |
1672 | cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); | ||
1673 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD); |
1674 | harbaum | 99 | cairo_show_text (cr, dist_str); |
1675 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, |
1676 | OSD_SCALE_H2+OSD_SCALE_FD + extents.height); | ||
1677 | cairo_show_text (cr, dist_str_imp); | ||
1678 | harbaum | 99 | |
1679 | harbaum | 103 | g_free(dist_str); |
1680 | g_free(dist_str_imp); | ||
1681 | |||
1682 | harbaum | 99 | /* draw white line */ |
1683 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); | ||
1684 | cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); | ||
1685 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/3); |
1686 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M); | ||
1687 | cairo_rel_line_to (cr, 0, OSD_SCALE_TICK); | ||
1688 | harbaum | 99 | cairo_rel_line_to (cr, width_metric, 0); |
1689 | harbaum | 103 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); |
1690 | harbaum | 99 | cairo_stroke(cr); |
1691 | harbaum | 103 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I); |
1692 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); | ||
1693 | cairo_rel_line_to (cr, width_imp, 0); | ||
1694 | cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK); | ||
1695 | cairo_stroke(cr); | ||
1696 | harbaum | 99 | |
1697 | /* draw black line */ | ||
1698 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); | ||
1699 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6); |
1700 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M); | ||
1701 | cairo_rel_line_to (cr, 0, OSD_SCALE_TICK); | ||
1702 | harbaum | 99 | cairo_rel_line_to (cr, width_metric, 0); |
1703 | harbaum | 103 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); |
1704 | harbaum | 99 | cairo_stroke(cr); |
1705 | harbaum | 103 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I); |
1706 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); | ||
1707 | cairo_rel_line_to (cr, width_imp, 0); | ||
1708 | cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK); | ||
1709 | cairo_stroke(cr); | ||
1710 | harbaum | 99 | |
1711 | harbaum | 98 | cairo_destroy(cr); |
1712 | harbaum | 143 | FOUT; |
1713 | harbaum | 98 | } |
1714 | harbaum | 105 | #endif |
1715 | harbaum | 98 | |
1716 | static void | ||
1717 | harbaum | 108 | osd_render_controls(osm_gps_map_osd_t *osd) |
1718 | harbaum | 98 | { |
1719 | harbaum | 143 | FIN; |
1720 | harbaum | 98 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1721 | |||
1722 | harbaum | 150 | if(!priv->controls.surface) |
1723 | return; | ||
1724 | |||
1725 | harbaum | 108 | if(priv->controls.rendered |
1726 | #ifdef OSD_GPS_BUTTON | ||
1727 | && (priv->controls.gps_enabled == (osd->cb != NULL)) | ||
1728 | #endif | ||
1729 | ) | ||
1730 | return; | ||
1731 | |||
1732 | #ifdef OSD_GPS_BUTTON | ||
1733 | priv->controls.gps_enabled = (osd->cb != NULL); | ||
1734 | #endif | ||
1735 | harbaum | 110 | priv->controls.rendered = TRUE; |
1736 | harbaum | 108 | |
1737 | harbaum | 86 | #ifndef OSD_COLOR |
1738 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
1739 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
1740 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
1741 | harbaum | 74 | #endif |
1742 | harbaum | 70 | |
1743 | /* first fill with transparency */ | ||
1744 | harbaum | 152 | g_assert(priv->controls.surface); |
1745 | harbaum | 108 | cairo_t *cr = cairo_create(priv->controls.surface); |
1746 | harbaum | 70 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
1747 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
1748 | cairo_paint(cr); | ||
1749 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
1750 | |||
1751 | /* --------- draw zoom and dpad shape shadow ----------- */ | ||
1752 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
1753 | harbaum | 86 | osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
1754 | osd_shape_shadow(cr); | ||
1755 | harbaum | 76 | #ifndef OSD_NO_DPAD |
1756 | harbaum | 86 | osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
1757 | osd_shape_shadow(cr); | ||
1758 | harbaum | 74 | #endif |
1759 | harbaum | 76 | #endif |
1760 | harbaum | 70 | |
1761 | /* --------- draw zoom and dpad shape ----------- */ | ||
1762 | |||
1763 | harbaum | 86 | osd_zoom_shape(cr, 1, 1); |
1764 | harbaum | 74 | #ifndef OSD_COLOR |
1765 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
1766 | harbaum | 74 | #else |
1767 | harbaum | 86 | osd_shape(cr); |
1768 | harbaum | 74 | #endif |
1769 | harbaum | 76 | #ifndef OSD_NO_DPAD |
1770 | harbaum | 86 | osd_dpad_shape(cr, 1, 1); |
1771 | harbaum | 74 | #ifndef OSD_COLOR |
1772 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
1773 | harbaum | 74 | #else |
1774 | harbaum | 86 | osd_shape(cr); |
1775 | harbaum | 74 | #endif |
1776 | harbaum | 76 | #endif |
1777 | harbaum | 70 | |
1778 | /* --------- draw zoom and dpad labels --------- */ | ||
1779 | |||
1780 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
1781 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/3, TRUE); |
1782 | harbaum | 86 | osd_zoom_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
1783 | harbaum | 76 | #ifndef OSD_NO_DPAD |
1784 | harbaum | 86 | osd_dpad_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
1785 | harbaum | 76 | #endif |
1786 | harbaum | 87 | cairo_stroke(cr); |
1787 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
1788 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL); |
1789 | harbaum | 86 | osd_dpad_gps(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
1790 | harbaum | 87 | cairo_stroke(cr); |
1791 | harbaum | 74 | #endif |
1792 | harbaum | 76 | #endif |
1793 | harbaum | 70 | |
1794 | harbaum | 74 | #ifndef OSD_COLOR |
1795 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); |
1796 | harbaum | 74 | #else |
1797 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE); |
1798 | harbaum | 74 | #endif |
1799 | harbaum | 87 | osd_zoom_labels(cr, 1, 1); |
1800 | #ifndef OSD_NO_DPAD | ||
1801 | osd_dpad_labels(cr, 1, 1); | ||
1802 | #endif | ||
1803 | cairo_stroke(cr); | ||
1804 | |||
1805 | harbaum | 74 | #ifndef OSD_COLOR |
1806 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da); |
1807 | harbaum | 74 | #else |
1808 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL); |
1809 | harbaum | 74 | #endif |
1810 | harbaum | 87 | #ifdef OSD_GPS_BUTTON |
1811 | osd_dpad_gps(cr, 1, 1); | ||
1812 | harbaum | 76 | #endif |
1813 | harbaum | 87 | cairo_stroke(cr); |
1814 | harbaum | 70 | |
1815 | cairo_destroy(cr); | ||
1816 | harbaum | 108 | } |
1817 | harbaum | 86 | |
1818 | harbaum | 108 | static void |
1819 | osd_render(osm_gps_map_osd_t *osd) | ||
1820 | { | ||
1821 | harbaum | 111 | /* this function is actually called pretty often since the */ |
1822 | /* OSD contents may have changed (due to a coordinate/zoom change). */ | ||
1823 | /* The different OSD parts have to make sure that they don't */ | ||
1824 | /* render unneccessarily often and thus waste CPU power */ | ||
1825 | |||
1826 | harbaum | 108 | osd_render_controls(osd); |
1827 | |||
1828 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
1829 | harbaum | 111 | osd_render_source_sel(osd, FALSE); |
1830 | harbaum | 88 | #endif |
1831 | harbaum | 98 | |
1832 | #ifdef OSD_SCALE | ||
1833 | osd_render_scale(osd); | ||
1834 | #endif | ||
1835 | harbaum | 105 | |
1836 | #ifdef OSD_CROSSHAIR | ||
1837 | osd_render_crosshair(osd); | ||
1838 | #endif | ||
1839 | harbaum | 106 | |
1840 | harbaum | 122 | #ifdef OSD_NAV |
1841 | osd_render_nav(osd); | ||
1842 | #endif | ||
1843 | |||
1844 | harbaum | 106 | #ifdef OSD_COORDINATES |
1845 | osd_render_coordinates(osd); | ||
1846 | #endif | ||
1847 | harbaum | 70 | } |
1848 | |||
1849 | static void | ||
1850 | harbaum | 86 | osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable) |
1851 | harbaum | 70 | { |
1852 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
1853 | harbaum | 70 | |
1854 | /* OSD itself uses some off-screen rendering, so check if the */ | ||
1855 | /* offscreen buffer is present and create it if not */ | ||
1856 | harbaum | 108 | if(!priv->controls.surface) { |
1857 | harbaum | 70 | /* create overlay ... */ |
1858 | harbaum | 108 | priv->controls.surface = |
1859 | harbaum | 86 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2); |
1860 | |||
1861 | harbaum | 108 | priv->controls.rendered = FALSE; |
1862 | #ifdef OSD_GPS_BUTTON | ||
1863 | priv->controls.gps_enabled = FALSE; | ||
1864 | #endif | ||
1865 | |||
1866 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
1867 | harbaum | 86 | /* the initial OSD state is alway not-expanded */ |
1868 | harbaum | 110 | priv->source_sel.surface = |
1869 | harbaum | 86 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1870 | OSD_S_W+2, OSD_S_H+2); | ||
1871 | harbaum | 111 | priv->source_sel.rendered = FALSE; |
1872 | harbaum | 88 | #endif |
1873 | harbaum | 86 | |
1874 | harbaum | 98 | #ifdef OSD_SCALE |
1875 | harbaum | 110 | priv->scale.surface = |
1876 | harbaum | 98 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1877 | harbaum | 103 | OSD_SCALE_W, OSD_SCALE_H); |
1878 | harbaum | 110 | priv->scale.zoom = -1; |
1879 | harbaum | 98 | #endif |
1880 | |||
1881 | harbaum | 105 | #ifdef OSD_CROSSHAIR |
1882 | harbaum | 110 | priv->crosshair.surface = |
1883 | harbaum | 105 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1884 | OSD_CROSSHAIR_W, OSD_CROSSHAIR_H); | ||
1885 | harbaum | 110 | priv->crosshair.rendered = FALSE; |
1886 | harbaum | 105 | #endif |
1887 | |||
1888 | harbaum | 106 | #ifdef OSD_COORDINATES |
1889 | harbaum | 110 | priv->coordinates.surface = |
1890 | harbaum | 106 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, |
1891 | OSD_COORDINATES_W, OSD_COORDINATES_H); | ||
1892 | harbaum | 108 | |
1893 | harbaum | 110 | priv->coordinates.lat = priv->coordinates.lon = OSM_GPS_MAP_INVALID; |
1894 | harbaum | 106 | #endif |
1895 | |||
1896 | harbaum | 70 | /* ... and render it */ |
1897 | harbaum | 86 | osd_render(osd); |
1898 | harbaum | 70 | } |
1899 | |||
1900 | // now draw this onto the original context | ||
1901 | harbaum | 75 | cairo_t *cr = gdk_cairo_create(drawable); |
1902 | harbaum | 77 | |
1903 | harbaum | 113 | gint x, y; |
1904 | harbaum | 77 | |
1905 | harbaum | 106 | #ifdef OSD_SCALE |
1906 | x = OSD_X; | ||
1907 | y = -OSD_Y; | ||
1908 | if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W; | ||
1909 | if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H; | ||
1910 | harbaum | 77 | |
1911 | harbaum | 110 | cairo_set_source_surface(cr, priv->scale.surface, x, y); |
1912 | harbaum | 106 | cairo_paint(cr); |
1913 | #endif | ||
1914 | |||
1915 | #ifdef OSD_CROSSHAIR | ||
1916 | x = (osd->widget->allocation.width - OSD_CROSSHAIR_W)/2; | ||
1917 | y = (osd->widget->allocation.height - OSD_CROSSHAIR_H)/2; | ||
1918 | |||
1919 | harbaum | 110 | cairo_set_source_surface(cr, priv->crosshair.surface, x, y); |
1920 | harbaum | 106 | cairo_paint(cr); |
1921 | #endif | ||
1922 | |||
1923 | harbaum | 122 | #ifdef OSD_NAV |
1924 | harbaum | 123 | if(priv->nav.surface) { |
1925 | x = OSD_X; | ||
1926 | if(x < 0) x += osd->widget->allocation.width - OSD_NAV_W; | ||
1927 | y = (osd->widget->allocation.height - OSD_NAV_H)/2; | ||
1928 | |||
1929 | cairo_set_source_surface(cr, priv->nav.surface, x, y); | ||
1930 | cairo_paint(cr); | ||
1931 | } | ||
1932 | harbaum | 122 | #endif |
1933 | |||
1934 | harbaum | 106 | #ifdef OSD_COORDINATES |
1935 | x = -OSD_X; | ||
1936 | y = -OSD_Y; | ||
1937 | if(x < 0) x += osd->widget->allocation.width - OSD_COORDINATES_W; | ||
1938 | if(y < 0) y += osd->widget->allocation.height - OSD_COORDINATES_H; | ||
1939 | |||
1940 | harbaum | 110 | cairo_set_source_surface(cr, priv->coordinates.surface, x, y); |
1941 | harbaum | 106 | cairo_paint(cr); |
1942 | #endif | ||
1943 | |||
1944 | harbaum | 113 | #ifdef OSD_BALLOON |
1945 | if(priv->balloon.surface) { | ||
1946 | |||
1947 | /* convert given lat lon into screen coordinates */ | ||
1948 | gint x, y; | ||
1949 | osm_gps_map_geographic_to_screen (OSM_GPS_MAP(osd->widget), | ||
1950 | priv->balloon.lat, priv->balloon.lon, | ||
1951 | &x, &y); | ||
1952 | |||
1953 | /* check if balloon needs to be rerendered */ | ||
1954 | osd_render_balloon(osd); | ||
1955 | |||
1956 | cairo_set_source_surface(cr, priv->balloon.surface, | ||
1957 | x + priv->balloon.offset_x, | ||
1958 | y + priv->balloon.offset_y); | ||
1959 | cairo_paint(cr); | ||
1960 | } | ||
1961 | #endif | ||
1962 | |||
1963 | harbaum | 106 | x = OSD_X; |
1964 | if(x < 0) | ||
1965 | x += osd->widget->allocation.width - OSD_W; | ||
1966 | |||
1967 | y = OSD_Y; | ||
1968 | if(y < 0) | ||
1969 | y += osd->widget->allocation.height - OSD_H; | ||
1970 | |||
1971 | harbaum | 108 | cairo_set_source_surface(cr, priv->controls.surface, x, y); |
1972 | harbaum | 70 | cairo_paint(cr); |
1973 | harbaum | 86 | |
1974 | #ifdef OSD_SOURCE_SEL | ||
1975 | harbaum | 110 | if(!priv->source_sel.handler_id) { |
1976 | harbaum | 86 | /* the OSD source selection is not being animated */ |
1977 | harbaum | 110 | if(!priv->source_sel.expanded) |
1978 | harbaum | 86 | x = osd->widget->allocation.width - OSD_S_W; |
1979 | else | ||
1980 | x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
1981 | } else | ||
1982 | harbaum | 110 | x = priv->source_sel.shift; |
1983 | harbaum | 86 | |
1984 | y = OSD_S_Y; | ||
1985 | if(OSD_S_Y < 0) { | ||
1986 | harbaum | 110 | if(!priv->source_sel.expanded) |
1987 | harbaum | 86 | y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y; |
1988 | else | ||
1989 | y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y; | ||
1990 | } | ||
1991 | |||
1992 | harbaum | 110 | cairo_set_source_surface(cr, priv->source_sel.surface, x, y); |
1993 | harbaum | 86 | cairo_paint(cr); |
1994 | #endif | ||
1995 | |||
1996 | harbaum | 70 | cairo_destroy(cr); |
1997 | harbaum | 143 | FOUT; |
1998 | harbaum | 70 | } |
1999 | |||
2000 | static void | ||
2001 | harbaum | 86 | osd_free(osm_gps_map_osd_t *osd) |
2002 | harbaum | 70 | { |
2003 | harbaum | 143 | FIN; |
2004 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
2005 | harbaum | 70 | |
2006 | harbaum | 108 | if (priv->controls.surface) |
2007 | cairo_surface_destroy(priv->controls.surface); | ||
2008 | harbaum | 88 | |
2009 | #ifdef OSD_SOURCE_SEL | ||
2010 | harbaum | 110 | if(priv->source_sel.handler_id) |
2011 | gtk_timeout_remove(priv->source_sel.handler_id); | ||
2012 | harbaum | 86 | |
2013 | harbaum | 110 | if (priv->source_sel.surface) |
2014 | cairo_surface_destroy(priv->source_sel.surface); | ||
2015 | harbaum | 88 | #endif |
2016 | harbaum | 86 | |
2017 | harbaum | 98 | #ifdef OSD_SCALE |
2018 | harbaum | 110 | if (priv->scale.surface) |
2019 | cairo_surface_destroy(priv->scale.surface); | ||
2020 | harbaum | 98 | #endif |
2021 | |||
2022 | harbaum | 105 | #ifdef OSD_CROSSHAIR |
2023 | harbaum | 110 | if (priv->crosshair.surface) |
2024 | cairo_surface_destroy(priv->crosshair.surface); | ||
2025 | harbaum | 105 | #endif |
2026 | |||
2027 | harbaum | 122 | #ifdef OSD_NAV |
2028 | if (priv->nav.surface) | ||
2029 | cairo_surface_destroy(priv->nav.surface); | ||
2030 | #endif | ||
2031 | |||
2032 | harbaum | 106 | #ifdef OSD_COORDINATES |
2033 | harbaum | 110 | if (priv->coordinates.surface) |
2034 | cairo_surface_destroy(priv->coordinates.surface); | ||
2035 | harbaum | 106 | #endif |
2036 | |||
2037 | harbaum | 112 | #ifdef OSD_BALLOON |
2038 | if (priv->balloon.surface) | ||
2039 | cairo_surface_destroy(priv->balloon.surface); | ||
2040 | #endif | ||
2041 | |||
2042 | harbaum | 73 | g_free(priv); |
2043 | harbaum | 143 | FOUT; |
2044 | harbaum | 73 | } |
2045 | |||
2046 | harbaum | 87 | static gboolean |
2047 | osd_busy(osm_gps_map_osd_t *osd) | ||
2048 | { | ||
2049 | harbaum | 143 | FIN; |
2050 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
2051 | harbaum | 87 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
2052 | harbaum | 110 | return (priv->source_sel.handler_id != 0); |
2053 | harbaum | 88 | #else |
2054 | return FALSE; | ||
2055 | #endif | ||
2056 | harbaum | 87 | } |
2057 | |||
2058 | harbaum | 136 | static osd_button_t |
2059 | osd_check(osm_gps_map_osd_t *osd, gboolean down, gint x, gint y) { | ||
2060 | harbaum | 143 | FIN; |
2061 | harbaum | 136 | return osd_check_int(osd, TRUE, down, x, y); |
2062 | } | ||
2063 | |||
2064 | harbaum | 73 | static osm_gps_map_osd_t osd_classic = { |
2065 | harbaum | 88 | .widget = NULL, |
2066 | |||
2067 | harbaum | 86 | .draw = osd_draw, |
2068 | .check = osd_check, | ||
2069 | .render = osd_render, | ||
2070 | .free = osd_free, | ||
2071 | harbaum | 87 | .busy = osd_busy, |
2072 | harbaum | 73 | |
2073 | .cb = NULL, | ||
2074 | .data = NULL, | ||
2075 | |||
2076 | .priv = NULL | ||
2077 | }; | ||
2078 | |||
2079 | /* this is the only function that's externally visible */ | ||
2080 | void | ||
2081 | osm_gps_map_osd_classic_init(OsmGpsMap *map) | ||
2082 | { | ||
2083 | harbaum | 143 | FIN; |
2084 | harbaum | 73 | osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1); |
2085 | |||
2086 | harbaum | 112 | #ifdef OSD_BALLOON |
2087 | priv->balloon.lat = OSM_GPS_MAP_INVALID; | ||
2088 | priv->balloon.lon = OSM_GPS_MAP_INVALID; | ||
2089 | #endif | ||
2090 | |||
2091 | harbaum | 73 | osd_classic.priv = priv; |
2092 | |||
2093 | osm_gps_map_register_osd(map, &osd_classic); | ||
2094 | harbaum | 143 | FOUT; |
2095 | harbaum | 73 | } |
2096 | |||
2097 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
2098 | harbaum | 74 | /* below are osd specific functions which aren't used by osm-gps-map */ |
2099 | /* but instead are to be used by the main application */ | ||
2100 | harbaum | 76 | void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb, |
2101 | gpointer data) { | ||
2102 | harbaum | 143 | FIN; |
2103 | harbaum | 73 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
2104 | g_return_if_fail (osd); | ||
2105 | |||
2106 | osd->cb = cb; | ||
2107 | osd->data = data; | ||
2108 | |||
2109 | harbaum | 70 | /* this may have changed the state of the gps button */ |
2110 | /* we thus re-render the overlay */ | ||
2111 | harbaum | 73 | osd->render(osd); |
2112 | harbaum | 70 | |
2113 | harbaum | 73 | osm_gps_map_redraw(map); |
2114 | harbaum | 143 | FOUT; |
2115 | harbaum | 70 | } |
2116 | harbaum | 76 | #endif |
2117 | harbaum | 86 | |
2118 | osd_button_t | ||
2119 | osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) { | ||
2120 | harbaum | 143 | FIN; |
2121 | harbaum | 86 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
2122 | g_return_val_if_fail (osd, OSD_NONE); | ||
2123 | |||
2124 | harbaum | 136 | return osd_check_int(osd, FALSE, TRUE, x, y); |
2125 | harbaum | 86 | } |