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