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