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Scale OSD continued
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 | harbaum | 98 | #define OSD_SCALE |
29 | |||
30 | #define OSD_SCALE_W 100 | ||
31 | #define OSD_SCALE_H 20 | ||
32 | |||
33 | harbaum | 71 | #ifndef USE_CAIRO |
34 | #error "OSD control display lacks a non-cairo implementation!" | ||
35 | harbaum | 70 | #endif |
36 | |||
37 | harbaum | 71 | #include <cairo.h> |
38 | |||
39 | #include "osm-gps-map.h" | ||
40 | harbaum | 73 | #include "osm-gps-map-osd-classic.h" |
41 | harbaum | 71 | |
42 | harbaum | 70 | //the osd controls |
43 | typedef struct { | ||
44 | harbaum | 74 | /* the offscreen representation of the OSD */ |
45 | cairo_surface_t *overlay; | ||
46 | harbaum | 86 | |
47 | harbaum | 98 | #ifdef OSD_SCALE |
48 | cairo_surface_t *scale; | ||
49 | #endif | ||
50 | |||
51 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
52 | harbaum | 87 | /* values to handle the "source" menu */ |
53 | harbaum | 86 | cairo_surface_t *map_source; |
54 | gboolean expanded; | ||
55 | gint shift, dir, count; | ||
56 | gint handler_id; | ||
57 | harbaum | 87 | gint width, height; |
58 | harbaum | 88 | #endif |
59 | harbaum | 87 | |
60 | harbaum | 70 | } osd_priv_t; |
61 | |||
62 | /* position and extent of bounding box */ | ||
63 | harbaum | 77 | #ifndef OSD_X |
64 | harbaum | 70 | #define OSD_X (10) |
65 | harbaum | 77 | #endif |
66 | |||
67 | #ifndef OSD_Y | ||
68 | harbaum | 70 | #define OSD_Y (10) |
69 | harbaum | 77 | #endif |
70 | harbaum | 70 | |
71 | /* parameters of the direction shape */ | ||
72 | harbaum | 77 | #ifndef OSD_DIAMETER |
73 | harbaum | 70 | #define D_RAD (30) // diameter of dpad |
74 | #else | ||
75 | harbaum | 77 | #define D_RAD (OSD_DIAMETER) |
76 | harbaum | 70 | #endif |
77 | #define D_TIP (4*D_RAD/5) // distance of arrow tip from dpad center | ||
78 | #define D_LEN (D_RAD/4) // length of arrow | ||
79 | #define D_WID (D_LEN) // width of arrow | ||
80 | |||
81 | /* parameters of the "zoom" pad */ | ||
82 | #define Z_STEP (D_RAD/4) // distance between dpad and zoom | ||
83 | #define Z_RAD (D_RAD/2) // radius of "caps" of zoom bar | ||
84 | |||
85 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
86 | harbaum | 70 | /* shadow also depends on control size */ |
87 | #define OSD_SHADOW (D_RAD/6) | ||
88 | harbaum | 74 | #else |
89 | #define OSD_SHADOW (0) | ||
90 | #endif | ||
91 | harbaum | 70 | |
92 | harbaum | 77 | /* normally the GPS button is in the center of the dpad. if there's */ |
93 | /* no dpad it will go into the zoom area */ | ||
94 | #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD) | ||
95 | #define Z_GPS 1 | ||
96 | #else | ||
97 | #define Z_GPS 0 | ||
98 | #endif | ||
99 | |||
100 | harbaum | 70 | /* total width and height of controls incl. shadow */ |
101 | harbaum | 77 | #define OSD_W (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD) |
102 | #if !Z_GPS | ||
103 | harbaum | 70 | #define OSD_H (2*D_RAD + Z_STEP + 2*Z_RAD + OSD_SHADOW) |
104 | harbaum | 77 | #else |
105 | #define OSD_H (2*Z_RAD + OSD_SHADOW) | ||
106 | #endif | ||
107 | harbaum | 70 | |
108 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
109 | harbaum | 70 | #define OSD_LBL_SHADOW (OSD_SHADOW/2) |
110 | harbaum | 74 | #endif |
111 | harbaum | 70 | |
112 | harbaum | 77 | #define Z_TOP ((1-Z_GPS) * (2 * D_RAD + Z_STEP)) |
113 | |||
114 | harbaum | 70 | #define Z_MID (Z_TOP + Z_RAD) |
115 | #define Z_BOT (Z_MID + Z_RAD) | ||
116 | #define Z_LEFT (Z_RAD) | ||
117 | harbaum | 77 | #define Z_RIGHT (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD) |
118 | #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2) | ||
119 | harbaum | 70 | |
120 | /* create the cairo shape used for the zoom buttons */ | ||
121 | static void | ||
122 | harbaum | 86 | osd_zoom_shape(cairo_t *cr, gint x, gint y) |
123 | harbaum | 71 | { |
124 | harbaum | 70 | cairo_move_to (cr, x+Z_LEFT, y+Z_TOP); |
125 | cairo_line_to (cr, x+Z_RIGHT, y+Z_TOP); | ||
126 | cairo_arc (cr, x+Z_RIGHT, y+Z_MID, Z_RAD, -M_PI/2, M_PI/2); | ||
127 | cairo_line_to (cr, x+Z_LEFT, y+Z_BOT); | ||
128 | cairo_arc (cr, x+Z_LEFT, y+Z_MID, Z_RAD, M_PI/2, -M_PI/2); | ||
129 | } | ||
130 | |||
131 | harbaum | 86 | /* ------------------- color/shadow functions ----------------- */ |
132 | |||
133 | #ifndef OSD_COLOR | ||
134 | /* if no color has been specified we just use the gdks default colors */ | ||
135 | static void | ||
136 | osd_labels(cairo_t *cr, gint width, gboolean enabled, | ||
137 | GdkColor *fg, GdkColor *disabled) { | ||
138 | if(enabled) gdk_cairo_set_source_color(cr, fg); | ||
139 | else gdk_cairo_set_source_color(cr, disabled); | ||
140 | cairo_set_line_width (cr, width); | ||
141 | } | ||
142 | #else | ||
143 | static void | ||
144 | osd_labels(cairo_t *cr, gint width, gboolean enabled) { | ||
145 | if(enabled) cairo_set_source_rgb (cr, OSD_COLOR); | ||
146 | else cairo_set_source_rgb (cr, OSD_COLOR_DISABLED); | ||
147 | cairo_set_line_width (cr, width); | ||
148 | } | ||
149 | #endif | ||
150 | |||
151 | #ifdef OSD_SHADOW_ENABLE | ||
152 | static void | ||
153 | osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) { | ||
154 | cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15); | ||
155 | cairo_set_line_width (cr, width); | ||
156 | } | ||
157 | #endif | ||
158 | |||
159 | harbaum | 76 | #ifndef OSD_NO_DPAD |
160 | harbaum | 70 | /* create the cairo shape used for the dpad */ |
161 | static void | ||
162 | harbaum | 86 | osd_dpad_shape(cairo_t *cr, gint x, gint y) |
163 | harbaum | 71 | { |
164 | harbaum | 70 | cairo_arc (cr, x+D_RAD, y+D_RAD, D_RAD, 0, 2 * M_PI); |
165 | } | ||
166 | harbaum | 76 | #endif |
167 | harbaum | 70 | |
168 | harbaum | 86 | #ifdef OSD_SHADOW_ENABLE |
169 | static void | ||
170 | osd_shape_shadow(cairo_t *cr) { | ||
171 | cairo_set_source_rgba (cr, 0, 0, 0, 0.2); | ||
172 | cairo_fill (cr); | ||
173 | cairo_stroke (cr); | ||
174 | } | ||
175 | #endif | ||
176 | |||
177 | #ifndef OSD_COLOR | ||
178 | /* if no color has been specified we just use the gdks default colors */ | ||
179 | static void | ||
180 | osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) { | ||
181 | gdk_cairo_set_source_color(cr, bg); | ||
182 | cairo_fill_preserve (cr); | ||
183 | gdk_cairo_set_source_color(cr, fg); | ||
184 | cairo_set_line_width (cr, 1); | ||
185 | cairo_stroke (cr); | ||
186 | } | ||
187 | #else | ||
188 | static void | ||
189 | osd_shape(cairo_t *cr) { | ||
190 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
191 | cairo_fill_preserve (cr); | ||
192 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
193 | cairo_set_line_width (cr, 1); | ||
194 | cairo_stroke (cr); | ||
195 | } | ||
196 | #endif | ||
197 | |||
198 | |||
199 | harbaum | 70 | static gboolean |
200 | osm_gps_map_in_circle(gint x, gint y, gint cx, gint cy, gint rad) | ||
201 | { | ||
202 | return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad); | ||
203 | } | ||
204 | |||
205 | harbaum | 76 | #ifndef OSD_NO_DPAD |
206 | harbaum | 70 | /* check whether x/y is within the dpad */ |
207 | static osd_button_t | ||
208 | harbaum | 86 | osd_check_dpad(gint x, gint y) |
209 | harbaum | 70 | { |
210 | /* within entire dpad circle */ | ||
211 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, D_RAD, D_RAD, D_RAD)) |
212 | harbaum | 70 | { |
213 | /* convert into position relative to dpads centre */ | ||
214 | harbaum | 77 | x -= D_RAD; |
215 | y -= D_RAD; | ||
216 | harbaum | 70 | |
217 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
218 | harbaum | 70 | /* check for dpad center goes here! */ |
219 | if( osm_gps_map_in_circle(x, y, 0, 0, D_RAD/3)) | ||
220 | return OSD_GPS; | ||
221 | harbaum | 76 | #endif |
222 | harbaum | 70 | |
223 | if( y < 0 && abs(x) < abs(y)) | ||
224 | return OSD_UP; | ||
225 | |||
226 | if( y > 0 && abs(x) < abs(y)) | ||
227 | return OSD_DOWN; | ||
228 | |||
229 | if( x < 0 && abs(y) < abs(x)) | ||
230 | return OSD_LEFT; | ||
231 | |||
232 | if( x > 0 && abs(y) < abs(x)) | ||
233 | return OSD_RIGHT; | ||
234 | |||
235 | return OSD_BG; | ||
236 | } | ||
237 | return OSD_NONE; | ||
238 | } | ||
239 | harbaum | 76 | #endif |
240 | harbaum | 70 | |
241 | /* check whether x/y is within the zoom pads */ | ||
242 | static osd_button_t | ||
243 | harbaum | 86 | osd_check_zoom(gint x, gint y) { |
244 | harbaum | 77 | if( x > 0 && x < OSD_W && y > Z_TOP && y < Z_BOT) { |
245 | harbaum | 70 | |
246 | /* within circle around (-) label */ | ||
247 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, Z_LEFT, Z_MID, Z_RAD)) |
248 | harbaum | 70 | return OSD_OUT; |
249 | |||
250 | harbaum | 77 | /* within circle around (+) label */ |
251 | if( osm_gps_map_in_circle(x, y, Z_RIGHT, Z_MID, Z_RAD)) | ||
252 | return OSD_IN; | ||
253 | |||
254 | #if Z_GPS == 1 | ||
255 | /* within square around center */ | ||
256 | if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD) | ||
257 | return OSD_GPS; | ||
258 | #endif | ||
259 | |||
260 | harbaum | 70 | /* between center of (-) button and center of entire zoom control area */ |
261 | harbaum | 77 | if(x > OSD_LEFT && x < D_RAD) |
262 | harbaum | 70 | return OSD_OUT; |
263 | |||
264 | /* between center of (+) button and center of entire zoom control area */ | ||
265 | harbaum | 77 | if(x < OSD_RIGHT && x > D_RAD) |
266 | harbaum | 70 | return OSD_IN; |
267 | } | ||
268 | |||
269 | return OSD_NONE; | ||
270 | } | ||
271 | |||
272 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
273 | |||
274 | harbaum | 86 | /* place source selection at right border */ |
275 | #define OSD_S_RAD (Z_RAD) | ||
276 | #define OSD_S_X (-OSD_X) | ||
277 | #define OSD_S_Y (OSD_Y) | ||
278 | #define OSD_S_PW (2 * Z_RAD) | ||
279 | #define OSD_S_W (OSD_S_PW) | ||
280 | #define OSD_S_PH (2 * Z_RAD) | ||
281 | #define OSD_S_H (OSD_S_PH + OSD_SHADOW) | ||
282 | |||
283 | harbaum | 87 | /* size of usable area when expanded */ |
284 | #define OSD_S_AREA_W (priv->width) | ||
285 | #define OSD_S_AREA_H (priv->height) | ||
286 | harbaum | 86 | #define OSD_S_EXP_W (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW) |
287 | #define OSD_S_EXP_H (OSD_S_AREA_H + OSD_SHADOW) | ||
288 | |||
289 | /* internal value to draw the arrow on the "puller" */ | ||
290 | #define OSD_S_D0 (OSD_S_RAD/2) | ||
291 | harbaum | 87 | #ifndef OSD_FONT_SIZE |
292 | #define OSD_FONT_SIZE 16.0 | ||
293 | #endif | ||
294 | #define OSD_TEXT_BORDER (OSD_FONT_SIZE/2) | ||
295 | #define OSD_TEXT_SKIP (OSD_FONT_SIZE/8) | ||
296 | harbaum | 86 | |
297 | harbaum | 88 | /* draw the shape of the source selection OSD, either only the puller (not expanded) */ |
298 | /* or the entire menu incl. the puller (expanded) */ | ||
299 | harbaum | 86 | static void |
300 | osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) { | ||
301 | if(!priv->expanded) { | ||
302 | /* just draw the puller */ | ||
303 | cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
304 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
305 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
306 | } else { | ||
307 | /* draw the puller and the area itself */ | ||
308 | cairo_move_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y + OSD_S_AREA_H); | ||
309 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H); | ||
310 | if(OSD_S_Y > 0) { | ||
311 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
312 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
313 | } else { | ||
314 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_AREA_H-OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
315 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H - OSD_S_PH); | ||
316 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
317 | } | ||
318 | cairo_line_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y); | ||
319 | cairo_close_path (cr); | ||
320 | } | ||
321 | } | ||
322 | |||
323 | static void | ||
324 | harbaum | 87 | osd_source_content(osm_gps_map_osd_t *osd, cairo_t *cr, gint offset) { |
325 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
326 | harbaum | 86 | |
327 | harbaum | 87 | int py = offset + OSD_S_RAD - OSD_S_D0; |
328 | |||
329 | harbaum | 86 | if(!priv->expanded) { |
330 | /* draw the "puller" open (<) arrow */ | ||
331 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py); |
332 | harbaum | 86 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); |
333 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); | ||
334 | } else { | ||
335 | if(OSD_S_Y < 0) | ||
336 | harbaum | 87 | py += OSD_S_AREA_H - OSD_S_PH; |
337 | harbaum | 86 | |
338 | /* draw the "puller" close (>) arrow */ | ||
339 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD - OSD_S_D0/2, py); |
340 | harbaum | 86 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); |
341 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); | ||
342 | harbaum | 87 | cairo_stroke(cr); |
343 | |||
344 | /* don't draw a shadow for the text content */ | ||
345 | if(offset == 1) { | ||
346 | gint source; | ||
347 | g_object_get(osd->widget, "map-source", &source, NULL); | ||
348 | |||
349 | cairo_select_font_face (cr, "Sans", | ||
350 | CAIRO_FONT_SLANT_NORMAL, | ||
351 | CAIRO_FONT_WEIGHT_BOLD); | ||
352 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
353 | |||
354 | harbaum | 89 | int i, step = (priv->height - 2*OSD_TEXT_BORDER) / |
355 | OSM_GPS_MAP_SOURCE_LAST; | ||
356 | harbaum | 87 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { |
357 | cairo_text_extents_t extents; | ||
358 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
359 | cairo_text_extents (cr, src, &extents); | ||
360 | |||
361 | int x = offset + OSD_S_PW + OSD_TEXT_BORDER; | ||
362 | int y = offset + step * (i-1) + OSD_TEXT_BORDER; | ||
363 | |||
364 | /* draw filled rectangle if selected */ | ||
365 | if(source == i) { | ||
366 | cairo_rectangle(cr, x - OSD_TEXT_BORDER/2, | ||
367 | y - OSD_TEXT_SKIP, | ||
368 | priv->width - OSD_TEXT_BORDER, | ||
369 | step + OSD_TEXT_SKIP); | ||
370 | cairo_fill(cr); | ||
371 | |||
372 | /* temprarily draw with background color */ | ||
373 | #ifndef OSD_COLOR | ||
374 | GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL]; | ||
375 | gdk_cairo_set_source_color(cr, &bg); | ||
376 | #else | ||
377 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
378 | #endif | ||
379 | } | ||
380 | |||
381 | cairo_move_to (cr, x, y + OSD_TEXT_SKIP - extents.y_bearing); | ||
382 | cairo_show_text (cr, src); | ||
383 | |||
384 | /* restore color */ | ||
385 | if(source == i) { | ||
386 | #ifndef OSD_COLOR | ||
387 | GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL]; | ||
388 | gdk_cairo_set_source_color(cr, &fg); | ||
389 | #else | ||
390 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
391 | #endif | ||
392 | } | ||
393 | } | ||
394 | } | ||
395 | harbaum | 86 | } |
396 | } | ||
397 | |||
398 | static void | ||
399 | osd_render_source_sel(osm_gps_map_osd_t *osd) { | ||
400 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
401 | |||
402 | #ifndef OSD_COLOR | ||
403 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
404 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
405 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
406 | #endif | ||
407 | |||
408 | /* draw source selector */ | ||
409 | cairo_t *cr = cairo_create(priv->map_source); | ||
410 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | ||
411 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
412 | cairo_paint(cr); | ||
413 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
414 | |||
415 | #ifdef OSD_SHADOW_ENABLE | ||
416 | osd_source_shape(priv, cr, 1+OSD_SHADOW, 1+OSD_SHADOW); | ||
417 | osd_shape_shadow(cr); | ||
418 | #endif | ||
419 | |||
420 | osd_source_shape(priv, cr, 1, 1); | ||
421 | #ifndef OSD_COLOR | ||
422 | osd_shape(cr, &bg, &fg); | ||
423 | #else | ||
424 | osd_shape(cr); | ||
425 | #endif | ||
426 | |||
427 | #ifdef OSD_SHADOW_ENABLE | ||
428 | osd_labels_shadow(cr, Z_RAD/3, TRUE); | ||
429 | harbaum | 87 | osd_source_content(osd, cr, 1+OSD_LBL_SHADOW); |
430 | cairo_stroke (cr); | ||
431 | harbaum | 86 | #endif |
432 | #ifndef OSD_COLOR | ||
433 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); | ||
434 | #else | ||
435 | osd_labels(cr, Z_RAD/3, TRUE); | ||
436 | #endif | ||
437 | harbaum | 87 | osd_source_content(osd, cr, 1); |
438 | cairo_stroke (cr); | ||
439 | harbaum | 86 | |
440 | cairo_destroy(cr); | ||
441 | } | ||
442 | |||
443 | harbaum | 89 | /* re-allocate the buffer used to draw the menu. This is used */ |
444 | /* to collapse/expand the buffer */ | ||
445 | harbaum | 86 | static void |
446 | osd_source_reallocate(osm_gps_map_osd_t *osd) { | ||
447 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
448 | |||
449 | /* re-allocate offscreen bitmap */ | ||
450 | g_assert (priv->map_source); | ||
451 | |||
452 | int w = OSD_S_W, h = OSD_S_H; | ||
453 | if(priv->expanded) { | ||
454 | harbaum | 87 | /* ... and right of it the waypoint id */ |
455 | cairo_text_extents_t extents; | ||
456 | |||
457 | /* determine content size */ | ||
458 | cairo_t *cr = cairo_create(priv->map_source); | ||
459 | cairo_select_font_face (cr, "Sans", | ||
460 | CAIRO_FONT_SLANT_NORMAL, | ||
461 | CAIRO_FONT_WEIGHT_BOLD); | ||
462 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
463 | |||
464 | /* calculate menu size */ | ||
465 | int i, max_h = 0, max_w = 0; | ||
466 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { | ||
467 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
468 | cairo_text_extents (cr, src, &extents); | ||
469 | |||
470 | if(extents.width > max_w) max_w = extents.width; | ||
471 | if(extents.height > max_h) max_h = extents.height; | ||
472 | } | ||
473 | cairo_destroy(cr); | ||
474 | |||
475 | priv->width = max_w + 2*OSD_TEXT_BORDER; | ||
476 | priv->height = OSM_GPS_MAP_SOURCE_LAST * | ||
477 | (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER; | ||
478 | |||
479 | harbaum | 86 | w = OSD_S_EXP_W; |
480 | h = OSD_S_EXP_H; | ||
481 | } | ||
482 | |||
483 | harbaum | 87 | cairo_surface_destroy(priv->map_source); |
484 | harbaum | 86 | priv->map_source = |
485 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2); | ||
486 | |||
487 | osd_render_source_sel(osd); | ||
488 | } | ||
489 | |||
490 | #define OSD_HZ 15 | ||
491 | harbaum | 87 | #define OSD_TIME 500 |
492 | harbaum | 86 | |
493 | static gboolean osd_source_animate(gpointer data) { | ||
494 | osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data; | ||
495 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
496 | int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X; | ||
497 | gboolean done = FALSE; | ||
498 | priv->count += priv->dir; | ||
499 | |||
500 | /* shifting in */ | ||
501 | if(priv->dir < 0) { | ||
502 | if(priv->count <= 0) { | ||
503 | priv->count = 0; | ||
504 | done = TRUE; | ||
505 | } | ||
506 | } else { | ||
507 | if(priv->count >= 1000) { | ||
508 | priv->expanded = FALSE; | ||
509 | osd_source_reallocate(osd); | ||
510 | |||
511 | priv->count = 1000; | ||
512 | done = TRUE; | ||
513 | } | ||
514 | } | ||
515 | |||
516 | |||
517 | /* count runs linearly from 0 to 1000, map this nicely onto a position */ | ||
518 | |||
519 | /* nicer sinoid mapping */ | ||
520 | float m = 0.5-cos(priv->count * M_PI / 1000.0)/2; | ||
521 | priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) + | ||
522 | m * diff; | ||
523 | |||
524 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); | ||
525 | |||
526 | if(done) | ||
527 | priv->handler_id = 0; | ||
528 | |||
529 | return !done; | ||
530 | } | ||
531 | |||
532 | /* switch between expand and collapse mode of source selection */ | ||
533 | static void | ||
534 | osd_source_toggle(osm_gps_map_osd_t *osd) | ||
535 | { | ||
536 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
537 | |||
538 | /* ignore clicks while animation is running */ | ||
539 | if(priv->handler_id) | ||
540 | return; | ||
541 | |||
542 | /* expand immediately, collapse is handle at the end of the collapse animation */ | ||
543 | if(!priv->expanded) { | ||
544 | priv->expanded = TRUE; | ||
545 | osd_source_reallocate(osd); | ||
546 | |||
547 | priv->count = 1000; | ||
548 | priv->shift = osd->widget->allocation.width - OSD_S_W; | ||
549 | priv->dir = -1000/OSD_HZ; | ||
550 | } else { | ||
551 | priv->count = 0; | ||
552 | priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
553 | priv->dir = +1000/OSD_HZ; | ||
554 | } | ||
555 | |||
556 | priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd); | ||
557 | } | ||
558 | |||
559 | harbaum | 89 | /* check if the user clicked inside the source selection area */ |
560 | harbaum | 70 | static osd_button_t |
561 | harbaum | 86 | osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) { |
562 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
563 | |||
564 | if(!priv->expanded) | ||
565 | x -= osd->widget->allocation.width - OSD_S_W; | ||
566 | else | ||
567 | x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
568 | |||
569 | if(OSD_S_Y > 0) | ||
570 | y -= OSD_S_Y; | ||
571 | else | ||
572 | y -= osd->widget->allocation.height - OSD_S_PH + OSD_S_Y; | ||
573 | |||
574 | /* within square around puller? */ | ||
575 | if(y > 0 && y < OSD_S_PH && x > 0 && x < OSD_S_PW) { | ||
576 | /* really within puller shape? */ | ||
577 | if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) { | ||
578 | /* expand source selector */ | ||
579 | osd_source_toggle(osd); | ||
580 | |||
581 | /* tell upper layers that user clicked some background element */ | ||
582 | /* of the OSD */ | ||
583 | return OSD_BG; | ||
584 | } | ||
585 | } | ||
586 | harbaum | 88 | |
587 | /* check for clicks into data area */ | ||
588 | harbaum | 89 | if(priv->expanded && !priv->handler_id) { |
589 | harbaum | 94 | /* re-adjust from puller top to content top */ |
590 | if(OSD_S_Y < 0) | ||
591 | y += OSD_S_EXP_H - OSD_S_PH; | ||
592 | |||
593 | harbaum | 88 | if(x > OSD_S_PW && |
594 | x < OSD_S_PW + OSD_S_EXP_W && | ||
595 | y > 0 && | ||
596 | y < OSD_S_EXP_H) { | ||
597 | harbaum | 94 | |
598 | harbaum | 89 | int step = (priv->height - 2*OSD_TEXT_BORDER) |
599 | / OSM_GPS_MAP_SOURCE_LAST; | ||
600 | harbaum | 88 | |
601 | harbaum | 89 | y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP; |
602 | y /= step; | ||
603 | y += 1; | ||
604 | |||
605 | gint old = 0; | ||
606 | g_object_get(osd->widget, "map-source", &old, NULL); | ||
607 | |||
608 | if(y > OSM_GPS_MAP_SOURCE_NULL && | ||
609 | y <= OSM_GPS_MAP_SOURCE_LAST && | ||
610 | old != y) { | ||
611 | g_object_set(osd->widget, "map-source", y, NULL); | ||
612 | |||
613 | osd_render_source_sel(osd); | ||
614 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); | ||
615 | } | ||
616 | |||
617 | /* return "clicked in OSD background" to prevent further */ | ||
618 | /* processing by application */ | ||
619 | harbaum | 88 | return OSD_BG; |
620 | } | ||
621 | } | ||
622 | |||
623 | harbaum | 86 | return OSD_NONE; |
624 | } | ||
625 | harbaum | 88 | #endif // OSD_SOURCE_SEL |
626 | harbaum | 86 | |
627 | static osd_button_t | ||
628 | osd_check(osm_gps_map_osd_t *osd, gint x, gint y) { | ||
629 | harbaum | 70 | osd_button_t but = OSD_NONE; |
630 | |||
631 | harbaum | 86 | #ifdef OSD_SOURCE_SEL |
632 | /* the source selection area is handles internally */ | ||
633 | but = osd_source_check(osd, x, y); | ||
634 | if(but != OSD_NONE) | ||
635 | return but; | ||
636 | #endif | ||
637 | |||
638 | harbaum | 77 | x -= OSD_X; |
639 | y -= OSD_Y; | ||
640 | |||
641 | if(OSD_X < 0) | ||
642 | x -= (osd->widget->allocation.width - OSD_W); | ||
643 | |||
644 | if(OSD_Y < 0) | ||
645 | y -= (osd->widget->allocation.height - OSD_H); | ||
646 | |||
647 | harbaum | 70 | /* first do a rough test for the OSD area. */ |
648 | /* this is just to avoid an unnecessary detailed test */ | ||
649 | harbaum | 77 | if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) { |
650 | harbaum | 76 | #ifndef OSD_NO_DPAD |
651 | harbaum | 86 | but = osd_check_dpad(x, y); |
652 | harbaum | 76 | #endif |
653 | harbaum | 70 | |
654 | if(but == OSD_NONE) | ||
655 | harbaum | 86 | but = osd_check_zoom(x, y); |
656 | harbaum | 70 | } |
657 | |||
658 | return but; | ||
659 | } | ||
660 | |||
661 | harbaum | 76 | #ifndef OSD_NO_DPAD |
662 | harbaum | 70 | static void |
663 | harbaum | 86 | osd_dpad_labels(cairo_t *cr, gint x, gint y) { |
664 | harbaum | 70 | /* move reference to dpad center */ |
665 | x += D_RAD; | ||
666 | y += D_RAD; | ||
667 | |||
668 | const static gint offset[][3][2] = { | ||
669 | /* left arrow/triangle */ | ||
670 | { { -D_TIP+D_LEN, -D_WID }, { -D_LEN, D_WID }, { +D_LEN, D_WID } }, | ||
671 | /* right arrow/triangle */ | ||
672 | { { +D_TIP-D_LEN, -D_WID }, { +D_LEN, D_WID }, { -D_LEN, D_WID } }, | ||
673 | /* top arrow/triangle */ | ||
674 | { { -D_WID, -D_TIP+D_LEN }, { D_WID, -D_LEN }, { D_WID, +D_LEN } }, | ||
675 | /* bottom arrow/triangle */ | ||
676 | { { -D_WID, +D_TIP-D_LEN }, { D_WID, +D_LEN }, { D_WID, -D_LEN } } | ||
677 | }; | ||
678 | |||
679 | int i; | ||
680 | for(i=0;i<4;i++) { | ||
681 | cairo_move_to (cr, x + offset[i][0][0], y + offset[i][0][1]); | ||
682 | cairo_rel_line_to (cr, offset[i][1][0], offset[i][1][1]); | ||
683 | cairo_rel_line_to (cr, offset[i][2][0], offset[i][2][1]); | ||
684 | } | ||
685 | } | ||
686 | harbaum | 76 | #endif |
687 | harbaum | 70 | |
688 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
689 | /* draw the satellite dish icon in the center of the dpad */ | ||
690 | harbaum | 77 | #define GPS_V0 (D_RAD/7) |
691 | harbaum | 70 | #define GPS_V1 (D_RAD/10) |
692 | #define GPS_V2 (D_RAD/5) | ||
693 | |||
694 | /* draw a satellite receiver dish */ | ||
695 | harbaum | 77 | /* this is either drawn in the center of the dpad (if present) */ |
696 | /* or in the middle of the zoom area */ | ||
697 | harbaum | 70 | static void |
698 | harbaum | 86 | osd_dpad_gps(cairo_t *cr, gint x, gint y) { |
699 | harbaum | 70 | /* move reference to dpad center */ |
700 | harbaum | 77 | x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3; |
701 | y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0; | ||
702 | harbaum | 70 | |
703 | cairo_move_to (cr, x-GPS_V0, y+GPS_V0); | ||
704 | cairo_rel_line_to (cr, +GPS_V0, -GPS_V0); | ||
705 | cairo_rel_line_to (cr, +GPS_V0, +GPS_V0); | ||
706 | cairo_close_path (cr); | ||
707 | |||
708 | cairo_move_to (cr, x+GPS_V1-GPS_V2, y-2*GPS_V2); | ||
709 | cairo_curve_to (cr, x-GPS_V2, y, x+GPS_V1, y+GPS_V1, x+GPS_V1+GPS_V2, y); | ||
710 | cairo_close_path (cr); | ||
711 | |||
712 | x += GPS_V1; | ||
713 | cairo_move_to (cr, x, y-GPS_V2); | ||
714 | cairo_rel_line_to (cr, +GPS_V1, -GPS_V1); | ||
715 | } | ||
716 | harbaum | 76 | #endif |
717 | harbaum | 70 | |
718 | #define Z_LEN (2*Z_RAD/3) | ||
719 | |||
720 | static void | ||
721 | harbaum | 86 | osd_zoom_labels(cairo_t *cr, gint x, gint y) { |
722 | harbaum | 70 | cairo_move_to (cr, x + Z_LEFT - Z_LEN, y + Z_MID); |
723 | cairo_line_to (cr, x + Z_LEFT + Z_LEN, y + Z_MID); | ||
724 | |||
725 | cairo_move_to (cr, x + Z_RIGHT, y + Z_MID - Z_LEN); | ||
726 | cairo_line_to (cr, x + Z_RIGHT, y + Z_MID + Z_LEN); | ||
727 | cairo_move_to (cr, x + Z_RIGHT - Z_LEN, y + Z_MID); | ||
728 | cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID); | ||
729 | } | ||
730 | |||
731 | harbaum | 99 | static char * |
732 | dist_str_metric(int dist) | ||
733 | { | ||
734 | if(dist<1000) | ||
735 | return g_strdup_printf("%u m", dist); | ||
736 | |||
737 | return g_strdup_printf("%u km", dist/1000); | ||
738 | harbaum | 98 | } |
739 | |||
740 | harbaum | 70 | static void |
741 | harbaum | 98 | osd_render_scale(osm_gps_map_osd_t *osd) |
742 | { | ||
743 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
744 | harbaum | 99 | float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget)); |
745 | harbaum | 70 | |
746 | harbaum | 98 | /* first fill with transparency */ |
747 | cairo_t *cr = cairo_create(priv->scale); | ||
748 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | ||
749 | // cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
750 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2); | ||
751 | cairo_paint(cr); | ||
752 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
753 | |||
754 | /* determine the size of the scale width in meters */ | ||
755 | harbaum | 99 | float width = (OSD_SCALE_W-2) * m_per_pix; |
756 | harbaum | 98 | printf("width = %f meters\n", width); |
757 | |||
758 | /* scale this to useful values */ | ||
759 | int exp = logf(width)*M_LOG10E; | ||
760 | int mant = width/pow(10,exp); | ||
761 | printf("mant = %d, exp = %d \n", mant, exp); | ||
762 | |||
763 | harbaum | 99 | int width_metric = mant * pow(10,exp); |
764 | char *dist_str = dist_str_metric(width_metric); | ||
765 | width_metric /= m_per_pix; | ||
766 | printf("metric scale width = %d pixels: %s\n", width_metric, dist_str); | ||
767 | |||
768 | int font_size = 12; | ||
769 | |||
770 | cairo_select_font_face (cr, "Sans", | ||
771 | CAIRO_FONT_SLANT_NORMAL, | ||
772 | CAIRO_FONT_WEIGHT_BOLD); | ||
773 | cairo_set_font_size (cr, font_size); | ||
774 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); | ||
775 | |||
776 | cairo_text_extents_t extents; | ||
777 | cairo_text_extents (cr, dist_str, &extents); | ||
778 | |||
779 | cairo_move_to (cr, font_size/3, font_size); | ||
780 | cairo_show_text (cr, dist_str); | ||
781 | |||
782 | printf("height = %f, bearing = %f\n", extents.height, extents.y_bearing); | ||
783 | |||
784 | /* draw white line */ | ||
785 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); | ||
786 | cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); | ||
787 | cairo_set_line_width (cr, 3); | ||
788 | cairo_move_to (cr, 2, 2*font_size/3); | ||
789 | cairo_rel_line_to (cr, 0, 2*font_size/3); | ||
790 | cairo_rel_line_to (cr, width_metric, 0); | ||
791 | cairo_rel_line_to (cr, 0, -2*font_size/3); | ||
792 | cairo_stroke(cr); | ||
793 | |||
794 | /* draw black line */ | ||
795 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); | ||
796 | cairo_set_line_width (cr, 2); | ||
797 | cairo_move_to (cr, 2, 2*font_size/3); | ||
798 | cairo_rel_line_to (cr, 0, 2*font_size/3); | ||
799 | cairo_rel_line_to (cr, width_metric, 0); | ||
800 | cairo_rel_line_to (cr, 0, -2*font_size/3); | ||
801 | cairo_stroke(cr); | ||
802 | |||
803 | /* xyz */ | ||
804 | |||
805 | harbaum | 98 | cairo_destroy(cr); |
806 | } | ||
807 | |||
808 | static void | ||
809 | osd_render(osm_gps_map_osd_t *osd) | ||
810 | { | ||
811 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
812 | |||
813 | harbaum | 86 | #ifndef OSD_COLOR |
814 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
815 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
816 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
817 | harbaum | 74 | #endif |
818 | harbaum | 70 | |
819 | /* first fill with transparency */ | ||
820 | harbaum | 73 | cairo_t *cr = cairo_create(priv->overlay); |
821 | harbaum | 70 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
822 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
823 | cairo_paint(cr); | ||
824 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
825 | |||
826 | /* --------- draw zoom and dpad shape shadow ----------- */ | ||
827 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
828 | harbaum | 86 | osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
829 | osd_shape_shadow(cr); | ||
830 | harbaum | 76 | #ifndef OSD_NO_DPAD |
831 | harbaum | 86 | osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
832 | osd_shape_shadow(cr); | ||
833 | harbaum | 74 | #endif |
834 | harbaum | 76 | #endif |
835 | harbaum | 70 | |
836 | /* --------- draw zoom and dpad shape ----------- */ | ||
837 | |||
838 | harbaum | 86 | osd_zoom_shape(cr, 1, 1); |
839 | harbaum | 74 | #ifndef OSD_COLOR |
840 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
841 | harbaum | 74 | #else |
842 | harbaum | 86 | osd_shape(cr); |
843 | harbaum | 74 | #endif |
844 | harbaum | 76 | #ifndef OSD_NO_DPAD |
845 | harbaum | 86 | osd_dpad_shape(cr, 1, 1); |
846 | harbaum | 74 | #ifndef OSD_COLOR |
847 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
848 | harbaum | 74 | #else |
849 | harbaum | 86 | osd_shape(cr); |
850 | harbaum | 74 | #endif |
851 | harbaum | 76 | #endif |
852 | harbaum | 70 | |
853 | /* --------- draw zoom and dpad labels --------- */ | ||
854 | |||
855 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
856 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/3, TRUE); |
857 | harbaum | 86 | osd_zoom_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
858 | harbaum | 76 | #ifndef OSD_NO_DPAD |
859 | harbaum | 86 | osd_dpad_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
860 | harbaum | 76 | #endif |
861 | harbaum | 87 | cairo_stroke(cr); |
862 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
863 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL); |
864 | harbaum | 86 | osd_dpad_gps(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
865 | harbaum | 87 | cairo_stroke(cr); |
866 | harbaum | 74 | #endif |
867 | harbaum | 76 | #endif |
868 | harbaum | 70 | |
869 | harbaum | 74 | #ifndef OSD_COLOR |
870 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); |
871 | harbaum | 74 | #else |
872 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE); |
873 | harbaum | 74 | #endif |
874 | harbaum | 87 | osd_zoom_labels(cr, 1, 1); |
875 | #ifndef OSD_NO_DPAD | ||
876 | osd_dpad_labels(cr, 1, 1); | ||
877 | #endif | ||
878 | cairo_stroke(cr); | ||
879 | |||
880 | harbaum | 74 | #ifndef OSD_COLOR |
881 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da); |
882 | harbaum | 74 | #else |
883 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL); |
884 | harbaum | 74 | #endif |
885 | harbaum | 87 | #ifdef OSD_GPS_BUTTON |
886 | osd_dpad_gps(cr, 1, 1); | ||
887 | harbaum | 76 | #endif |
888 | harbaum | 87 | cairo_stroke(cr); |
889 | harbaum | 70 | |
890 | cairo_destroy(cr); | ||
891 | harbaum | 86 | |
892 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
893 | harbaum | 86 | osd_render_source_sel(osd); |
894 | harbaum | 88 | #endif |
895 | harbaum | 98 | |
896 | #ifdef OSD_SCALE | ||
897 | osd_render_scale(osd); | ||
898 | #endif | ||
899 | harbaum | 70 | } |
900 | |||
901 | static void | ||
902 | harbaum | 86 | osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable) |
903 | harbaum | 70 | { |
904 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
905 | harbaum | 70 | |
906 | /* OSD itself uses some off-screen rendering, so check if the */ | ||
907 | /* offscreen buffer is present and create it if not */ | ||
908 | harbaum | 73 | if(!priv->overlay) { |
909 | harbaum | 70 | /* create overlay ... */ |
910 | harbaum | 73 | priv->overlay = |
911 | harbaum | 86 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2); |
912 | |||
913 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
914 | harbaum | 86 | /* the initial OSD state is alway not-expanded */ |
915 | priv->map_source = | ||
916 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
917 | OSD_S_W+2, OSD_S_H+2); | ||
918 | harbaum | 88 | #endif |
919 | harbaum | 86 | |
920 | harbaum | 98 | #ifdef OSD_SCALE |
921 | priv->scale = | ||
922 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
923 | harbaum | 99 | OSD_SCALE_W+2, OSD_SCALE_H+2); |
924 | harbaum | 98 | #endif |
925 | |||
926 | harbaum | 70 | /* ... and render it */ |
927 | harbaum | 86 | osd_render(osd); |
928 | harbaum | 70 | } |
929 | |||
930 | // now draw this onto the original context | ||
931 | harbaum | 75 | cairo_t *cr = gdk_cairo_create(drawable); |
932 | harbaum | 77 | |
933 | int x = OSD_X, y = OSD_Y; | ||
934 | if(OSD_X < 0) | ||
935 | x = osd->widget->allocation.width - OSD_W + OSD_X; | ||
936 | |||
937 | if(OSD_Y < 0) | ||
938 | y = osd->widget->allocation.height - OSD_H + OSD_Y; | ||
939 | |||
940 | cairo_set_source_surface(cr, priv->overlay, x, y); | ||
941 | harbaum | 70 | cairo_paint(cr); |
942 | harbaum | 86 | |
943 | #ifdef OSD_SOURCE_SEL | ||
944 | if(!priv->handler_id) { | ||
945 | /* the OSD source selection is not being animated */ | ||
946 | if(!priv->expanded) | ||
947 | x = osd->widget->allocation.width - OSD_S_W; | ||
948 | else | ||
949 | x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
950 | } else | ||
951 | x = priv->shift; | ||
952 | |||
953 | y = OSD_S_Y; | ||
954 | if(OSD_S_Y < 0) { | ||
955 | if(!priv->expanded) | ||
956 | y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y; | ||
957 | else | ||
958 | y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y; | ||
959 | } | ||
960 | |||
961 | cairo_set_source_surface(cr, priv->map_source, x, y); | ||
962 | cairo_paint(cr); | ||
963 | #endif | ||
964 | |||
965 | harbaum | 98 | #ifdef OSD_SCALE |
966 | x = OSD_X; | ||
967 | y = -OSD_Y; | ||
968 | if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W; | ||
969 | if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H; | ||
970 | |||
971 | cairo_set_source_surface(cr, priv->scale, x, y); | ||
972 | cairo_paint(cr); | ||
973 | #endif | ||
974 | |||
975 | harbaum | 70 | cairo_destroy(cr); |
976 | } | ||
977 | |||
978 | static void | ||
979 | harbaum | 86 | osd_free(osm_gps_map_osd_t *osd) |
980 | harbaum | 70 | { |
981 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
982 | harbaum | 70 | |
983 | harbaum | 88 | if (priv->overlay) |
984 | cairo_surface_destroy(priv->overlay); | ||
985 | |||
986 | #ifdef OSD_SOURCE_SEL | ||
987 | harbaum | 86 | if(priv->handler_id) |
988 | gtk_timeout_remove(priv->handler_id); | ||
989 | |||
990 | if (priv->map_source) | ||
991 | cairo_surface_destroy(priv->map_source); | ||
992 | harbaum | 88 | #endif |
993 | harbaum | 86 | |
994 | harbaum | 98 | #ifdef OSD_SCALE |
995 | if (priv->scale) | ||
996 | cairo_surface_destroy(priv->scale); | ||
997 | #endif | ||
998 | |||
999 | harbaum | 73 | g_free(priv); |
1000 | } | ||
1001 | |||
1002 | harbaum | 87 | static gboolean |
1003 | osd_busy(osm_gps_map_osd_t *osd) | ||
1004 | { | ||
1005 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
1006 | harbaum | 87 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
1007 | return (priv->handler_id != 0); | ||
1008 | harbaum | 88 | #else |
1009 | return FALSE; | ||
1010 | #endif | ||
1011 | harbaum | 87 | } |
1012 | |||
1013 | harbaum | 73 | static osm_gps_map_osd_t osd_classic = { |
1014 | harbaum | 88 | .widget = NULL, |
1015 | |||
1016 | harbaum | 86 | .draw = osd_draw, |
1017 | .check = osd_check, | ||
1018 | .render = osd_render, | ||
1019 | .free = osd_free, | ||
1020 | harbaum | 87 | .busy = osd_busy, |
1021 | harbaum | 73 | |
1022 | .cb = NULL, | ||
1023 | .data = NULL, | ||
1024 | |||
1025 | .priv = NULL | ||
1026 | }; | ||
1027 | |||
1028 | /* this is the only function that's externally visible */ | ||
1029 | void | ||
1030 | osm_gps_map_osd_classic_init(OsmGpsMap *map) | ||
1031 | { | ||
1032 | osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1); | ||
1033 | |||
1034 | osd_classic.priv = priv; | ||
1035 | |||
1036 | osm_gps_map_register_osd(map, &osd_classic); | ||
1037 | } | ||
1038 | |||
1039 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
1040 | harbaum | 74 | /* below are osd specific functions which aren't used by osm-gps-map */ |
1041 | /* but instead are to be used by the main application */ | ||
1042 | harbaum | 76 | void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb, |
1043 | gpointer data) { | ||
1044 | harbaum | 73 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
1045 | g_return_if_fail (osd); | ||
1046 | |||
1047 | osd->cb = cb; | ||
1048 | osd->data = data; | ||
1049 | |||
1050 | harbaum | 70 | /* this may have changed the state of the gps button */ |
1051 | /* we thus re-render the overlay */ | ||
1052 | harbaum | 73 | osd->render(osd); |
1053 | harbaum | 70 | |
1054 | harbaum | 73 | osm_gps_map_redraw(map); |
1055 | harbaum | 70 | } |
1056 | harbaum | 76 | #endif |
1057 | harbaum | 86 | |
1058 | osd_button_t | ||
1059 | osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) { | ||
1060 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); | ||
1061 | g_return_val_if_fail (osd, OSD_NONE); | ||
1062 | |||
1063 | return osd_check(osd, x, y); | ||
1064 | } |