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