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