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