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OSD scale done
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 | 103 | #ifndef OSD_SCALE_FONT_SIZE |
29 | #define OSD_SCALE_FONT_SIZE 12 | ||
30 | #endif | ||
31 | #define OSD_SCALE_W (10*OSD_SCALE_FONT_SIZE) | ||
32 | #define OSD_SCALE_H (5*OSD_SCALE_FONT_SIZE/2) | ||
33 | harbaum | 98 | |
34 | harbaum | 71 | #ifndef USE_CAIRO |
35 | #error "OSD control display lacks a non-cairo implementation!" | ||
36 | harbaum | 70 | #endif |
37 | |||
38 | harbaum | 71 | #include <cairo.h> |
39 | |||
40 | #include "osm-gps-map.h" | ||
41 | harbaum | 73 | #include "osm-gps-map-osd-classic.h" |
42 | harbaum | 71 | |
43 | harbaum | 70 | //the osd controls |
44 | typedef struct { | ||
45 | harbaum | 74 | /* the offscreen representation of the OSD */ |
46 | cairo_surface_t *overlay; | ||
47 | harbaum | 86 | |
48 | harbaum | 98 | #ifdef OSD_SCALE |
49 | cairo_surface_t *scale; | ||
50 | harbaum | 103 | int scale_zoom; |
51 | harbaum | 98 | #endif |
52 | |||
53 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
54 | harbaum | 87 | /* values to handle the "source" menu */ |
55 | harbaum | 86 | cairo_surface_t *map_source; |
56 | gboolean expanded; | ||
57 | gint shift, dir, count; | ||
58 | gint handler_id; | ||
59 | harbaum | 87 | gint width, height; |
60 | harbaum | 88 | #endif |
61 | harbaum | 87 | |
62 | harbaum | 70 | } osd_priv_t; |
63 | |||
64 | /* position and extent of bounding box */ | ||
65 | harbaum | 77 | #ifndef OSD_X |
66 | harbaum | 70 | #define OSD_X (10) |
67 | harbaum | 77 | #endif |
68 | |||
69 | #ifndef OSD_Y | ||
70 | harbaum | 70 | #define OSD_Y (10) |
71 | harbaum | 77 | #endif |
72 | harbaum | 70 | |
73 | /* parameters of the direction shape */ | ||
74 | harbaum | 77 | #ifndef OSD_DIAMETER |
75 | harbaum | 70 | #define D_RAD (30) // diameter of dpad |
76 | #else | ||
77 | harbaum | 77 | #define D_RAD (OSD_DIAMETER) |
78 | harbaum | 70 | #endif |
79 | #define D_TIP (4*D_RAD/5) // distance of arrow tip from dpad center | ||
80 | #define D_LEN (D_RAD/4) // length of arrow | ||
81 | #define D_WID (D_LEN) // width of arrow | ||
82 | |||
83 | /* parameters of the "zoom" pad */ | ||
84 | #define Z_STEP (D_RAD/4) // distance between dpad and zoom | ||
85 | #define Z_RAD (D_RAD/2) // radius of "caps" of zoom bar | ||
86 | |||
87 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
88 | harbaum | 70 | /* shadow also depends on control size */ |
89 | #define OSD_SHADOW (D_RAD/6) | ||
90 | harbaum | 74 | #else |
91 | #define OSD_SHADOW (0) | ||
92 | #endif | ||
93 | harbaum | 70 | |
94 | harbaum | 77 | /* normally the GPS button is in the center of the dpad. if there's */ |
95 | /* no dpad it will go into the zoom area */ | ||
96 | #if defined(OSD_GPS_BUTTON) && defined(OSD_NO_DPAD) | ||
97 | #define Z_GPS 1 | ||
98 | #else | ||
99 | #define Z_GPS 0 | ||
100 | #endif | ||
101 | |||
102 | harbaum | 70 | /* total width and height of controls incl. shadow */ |
103 | harbaum | 77 | #define OSD_W (2*D_RAD + OSD_SHADOW + Z_GPS * 2 * Z_RAD) |
104 | #if !Z_GPS | ||
105 | harbaum | 70 | #define OSD_H (2*D_RAD + Z_STEP + 2*Z_RAD + OSD_SHADOW) |
106 | harbaum | 77 | #else |
107 | #define OSD_H (2*Z_RAD + OSD_SHADOW) | ||
108 | #endif | ||
109 | harbaum | 70 | |
110 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
111 | harbaum | 70 | #define OSD_LBL_SHADOW (OSD_SHADOW/2) |
112 | harbaum | 74 | #endif |
113 | harbaum | 70 | |
114 | harbaum | 77 | #define Z_TOP ((1-Z_GPS) * (2 * D_RAD + Z_STEP)) |
115 | |||
116 | harbaum | 70 | #define Z_MID (Z_TOP + Z_RAD) |
117 | #define Z_BOT (Z_MID + Z_RAD) | ||
118 | #define Z_LEFT (Z_RAD) | ||
119 | harbaum | 77 | #define Z_RIGHT (2 * D_RAD - Z_RAD + Z_GPS * 2 * Z_RAD) |
120 | #define Z_CENTER ((Z_RIGHT + Z_LEFT)/2) | ||
121 | harbaum | 70 | |
122 | /* create the cairo shape used for the zoom buttons */ | ||
123 | static void | ||
124 | harbaum | 86 | osd_zoom_shape(cairo_t *cr, gint x, gint y) |
125 | harbaum | 71 | { |
126 | harbaum | 70 | cairo_move_to (cr, x+Z_LEFT, y+Z_TOP); |
127 | cairo_line_to (cr, x+Z_RIGHT, y+Z_TOP); | ||
128 | cairo_arc (cr, x+Z_RIGHT, y+Z_MID, Z_RAD, -M_PI/2, M_PI/2); | ||
129 | cairo_line_to (cr, x+Z_LEFT, y+Z_BOT); | ||
130 | cairo_arc (cr, x+Z_LEFT, y+Z_MID, Z_RAD, M_PI/2, -M_PI/2); | ||
131 | } | ||
132 | |||
133 | harbaum | 86 | /* ------------------- color/shadow functions ----------------- */ |
134 | |||
135 | #ifndef OSD_COLOR | ||
136 | /* if no color has been specified we just use the gdks default colors */ | ||
137 | static void | ||
138 | osd_labels(cairo_t *cr, gint width, gboolean enabled, | ||
139 | GdkColor *fg, GdkColor *disabled) { | ||
140 | if(enabled) gdk_cairo_set_source_color(cr, fg); | ||
141 | else gdk_cairo_set_source_color(cr, disabled); | ||
142 | cairo_set_line_width (cr, width); | ||
143 | } | ||
144 | #else | ||
145 | static void | ||
146 | osd_labels(cairo_t *cr, gint width, gboolean enabled) { | ||
147 | if(enabled) cairo_set_source_rgb (cr, OSD_COLOR); | ||
148 | else cairo_set_source_rgb (cr, OSD_COLOR_DISABLED); | ||
149 | cairo_set_line_width (cr, width); | ||
150 | } | ||
151 | #endif | ||
152 | |||
153 | #ifdef OSD_SHADOW_ENABLE | ||
154 | static void | ||
155 | osd_labels_shadow(cairo_t *cr, gint width, gboolean enabled) { | ||
156 | cairo_set_source_rgba (cr, 0, 0, 0, enabled?0.3:0.15); | ||
157 | cairo_set_line_width (cr, width); | ||
158 | } | ||
159 | #endif | ||
160 | |||
161 | harbaum | 76 | #ifndef OSD_NO_DPAD |
162 | harbaum | 70 | /* create the cairo shape used for the dpad */ |
163 | static void | ||
164 | harbaum | 86 | osd_dpad_shape(cairo_t *cr, gint x, gint y) |
165 | harbaum | 71 | { |
166 | harbaum | 70 | cairo_arc (cr, x+D_RAD, y+D_RAD, D_RAD, 0, 2 * M_PI); |
167 | } | ||
168 | harbaum | 76 | #endif |
169 | harbaum | 70 | |
170 | harbaum | 86 | #ifdef OSD_SHADOW_ENABLE |
171 | static void | ||
172 | osd_shape_shadow(cairo_t *cr) { | ||
173 | cairo_set_source_rgba (cr, 0, 0, 0, 0.2); | ||
174 | cairo_fill (cr); | ||
175 | cairo_stroke (cr); | ||
176 | } | ||
177 | #endif | ||
178 | |||
179 | #ifndef OSD_COLOR | ||
180 | /* if no color has been specified we just use the gdks default colors */ | ||
181 | static void | ||
182 | osd_shape(cairo_t *cr, GdkColor *bg, GdkColor *fg) { | ||
183 | gdk_cairo_set_source_color(cr, bg); | ||
184 | cairo_fill_preserve (cr); | ||
185 | gdk_cairo_set_source_color(cr, fg); | ||
186 | cairo_set_line_width (cr, 1); | ||
187 | cairo_stroke (cr); | ||
188 | } | ||
189 | #else | ||
190 | static void | ||
191 | osd_shape(cairo_t *cr) { | ||
192 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
193 | cairo_fill_preserve (cr); | ||
194 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
195 | cairo_set_line_width (cr, 1); | ||
196 | cairo_stroke (cr); | ||
197 | } | ||
198 | #endif | ||
199 | |||
200 | |||
201 | harbaum | 70 | static gboolean |
202 | osm_gps_map_in_circle(gint x, gint y, gint cx, gint cy, gint rad) | ||
203 | { | ||
204 | return( pow(cx - x, 2) + pow(cy - y, 2) < rad * rad); | ||
205 | } | ||
206 | |||
207 | harbaum | 76 | #ifndef OSD_NO_DPAD |
208 | harbaum | 70 | /* check whether x/y is within the dpad */ |
209 | static osd_button_t | ||
210 | harbaum | 86 | osd_check_dpad(gint x, gint y) |
211 | harbaum | 70 | { |
212 | /* within entire dpad circle */ | ||
213 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, D_RAD, D_RAD, D_RAD)) |
214 | harbaum | 70 | { |
215 | /* convert into position relative to dpads centre */ | ||
216 | harbaum | 77 | x -= D_RAD; |
217 | y -= D_RAD; | ||
218 | harbaum | 70 | |
219 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
220 | harbaum | 70 | /* check for dpad center goes here! */ |
221 | if( osm_gps_map_in_circle(x, y, 0, 0, D_RAD/3)) | ||
222 | return OSD_GPS; | ||
223 | harbaum | 76 | #endif |
224 | harbaum | 70 | |
225 | if( y < 0 && abs(x) < abs(y)) | ||
226 | return OSD_UP; | ||
227 | |||
228 | if( y > 0 && abs(x) < abs(y)) | ||
229 | return OSD_DOWN; | ||
230 | |||
231 | if( x < 0 && abs(y) < abs(x)) | ||
232 | return OSD_LEFT; | ||
233 | |||
234 | if( x > 0 && abs(y) < abs(x)) | ||
235 | return OSD_RIGHT; | ||
236 | |||
237 | return OSD_BG; | ||
238 | } | ||
239 | return OSD_NONE; | ||
240 | } | ||
241 | harbaum | 76 | #endif |
242 | harbaum | 70 | |
243 | /* check whether x/y is within the zoom pads */ | ||
244 | static osd_button_t | ||
245 | harbaum | 86 | osd_check_zoom(gint x, gint y) { |
246 | harbaum | 77 | if( x > 0 && x < OSD_W && y > Z_TOP && y < Z_BOT) { |
247 | harbaum | 70 | |
248 | /* within circle around (-) label */ | ||
249 | harbaum | 77 | if( osm_gps_map_in_circle(x, y, Z_LEFT, Z_MID, Z_RAD)) |
250 | harbaum | 70 | return OSD_OUT; |
251 | |||
252 | harbaum | 77 | /* within circle around (+) label */ |
253 | if( osm_gps_map_in_circle(x, y, Z_RIGHT, Z_MID, Z_RAD)) | ||
254 | return OSD_IN; | ||
255 | |||
256 | #if Z_GPS == 1 | ||
257 | /* within square around center */ | ||
258 | if( x > Z_CENTER - Z_RAD && x < Z_CENTER + Z_RAD) | ||
259 | return OSD_GPS; | ||
260 | #endif | ||
261 | |||
262 | harbaum | 70 | /* between center of (-) button and center of entire zoom control area */ |
263 | harbaum | 77 | if(x > OSD_LEFT && x < D_RAD) |
264 | harbaum | 70 | return OSD_OUT; |
265 | |||
266 | /* between center of (+) button and center of entire zoom control area */ | ||
267 | harbaum | 77 | if(x < OSD_RIGHT && x > D_RAD) |
268 | harbaum | 70 | return OSD_IN; |
269 | } | ||
270 | |||
271 | return OSD_NONE; | ||
272 | } | ||
273 | |||
274 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
275 | |||
276 | harbaum | 86 | /* place source selection at right border */ |
277 | #define OSD_S_RAD (Z_RAD) | ||
278 | #define OSD_S_X (-OSD_X) | ||
279 | #define OSD_S_Y (OSD_Y) | ||
280 | #define OSD_S_PW (2 * Z_RAD) | ||
281 | #define OSD_S_W (OSD_S_PW) | ||
282 | #define OSD_S_PH (2 * Z_RAD) | ||
283 | #define OSD_S_H (OSD_S_PH + OSD_SHADOW) | ||
284 | |||
285 | harbaum | 87 | /* size of usable area when expanded */ |
286 | #define OSD_S_AREA_W (priv->width) | ||
287 | #define OSD_S_AREA_H (priv->height) | ||
288 | harbaum | 86 | #define OSD_S_EXP_W (OSD_S_PW + OSD_S_AREA_W + OSD_SHADOW) |
289 | #define OSD_S_EXP_H (OSD_S_AREA_H + OSD_SHADOW) | ||
290 | |||
291 | /* internal value to draw the arrow on the "puller" */ | ||
292 | #define OSD_S_D0 (OSD_S_RAD/2) | ||
293 | harbaum | 87 | #ifndef OSD_FONT_SIZE |
294 | #define OSD_FONT_SIZE 16.0 | ||
295 | #endif | ||
296 | #define OSD_TEXT_BORDER (OSD_FONT_SIZE/2) | ||
297 | #define OSD_TEXT_SKIP (OSD_FONT_SIZE/8) | ||
298 | harbaum | 86 | |
299 | harbaum | 88 | /* draw the shape of the source selection OSD, either only the puller (not expanded) */ |
300 | /* or the entire menu incl. the puller (expanded) */ | ||
301 | harbaum | 86 | static void |
302 | osd_source_shape(osd_priv_t *priv, cairo_t *cr, gint x, gint y) { | ||
303 | if(!priv->expanded) { | ||
304 | /* just draw the puller */ | ||
305 | cairo_move_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
306 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
307 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
308 | } else { | ||
309 | /* draw the puller and the area itself */ | ||
310 | cairo_move_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y + OSD_S_AREA_H); | ||
311 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H); | ||
312 | if(OSD_S_Y > 0) { | ||
313 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_PH); | ||
314 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
315 | } else { | ||
316 | cairo_arc (cr, x+OSD_S_RAD, y+OSD_S_AREA_H-OSD_S_RAD, OSD_S_RAD, M_PI/2, -M_PI/2); | ||
317 | cairo_line_to (cr, x + OSD_S_PW, y + OSD_S_AREA_H - OSD_S_PH); | ||
318 | cairo_line_to (cr, x + OSD_S_PW, y); | ||
319 | } | ||
320 | cairo_line_to (cr, x + OSD_S_PW + OSD_S_AREA_W, y); | ||
321 | cairo_close_path (cr); | ||
322 | } | ||
323 | } | ||
324 | |||
325 | static void | ||
326 | harbaum | 87 | osd_source_content(osm_gps_map_osd_t *osd, cairo_t *cr, gint offset) { |
327 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
328 | harbaum | 86 | |
329 | harbaum | 87 | int py = offset + OSD_S_RAD - OSD_S_D0; |
330 | |||
331 | harbaum | 86 | if(!priv->expanded) { |
332 | /* draw the "puller" open (<) arrow */ | ||
333 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD + OSD_S_D0/2, py); |
334 | harbaum | 86 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); |
335 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); | ||
336 | } else { | ||
337 | if(OSD_S_Y < 0) | ||
338 | harbaum | 87 | py += OSD_S_AREA_H - OSD_S_PH; |
339 | harbaum | 86 | |
340 | /* draw the "puller" close (>) arrow */ | ||
341 | harbaum | 87 | cairo_move_to (cr, offset + OSD_S_RAD - OSD_S_D0/2, py); |
342 | harbaum | 86 | cairo_rel_line_to (cr, +OSD_S_D0, +OSD_S_D0); |
343 | cairo_rel_line_to (cr, -OSD_S_D0, +OSD_S_D0); | ||
344 | harbaum | 87 | cairo_stroke(cr); |
345 | |||
346 | /* don't draw a shadow for the text content */ | ||
347 | if(offset == 1) { | ||
348 | gint source; | ||
349 | g_object_get(osd->widget, "map-source", &source, NULL); | ||
350 | |||
351 | cairo_select_font_face (cr, "Sans", | ||
352 | CAIRO_FONT_SLANT_NORMAL, | ||
353 | CAIRO_FONT_WEIGHT_BOLD); | ||
354 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
355 | |||
356 | harbaum | 89 | int i, step = (priv->height - 2*OSD_TEXT_BORDER) / |
357 | OSM_GPS_MAP_SOURCE_LAST; | ||
358 | harbaum | 87 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { |
359 | cairo_text_extents_t extents; | ||
360 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
361 | cairo_text_extents (cr, src, &extents); | ||
362 | |||
363 | int x = offset + OSD_S_PW + OSD_TEXT_BORDER; | ||
364 | int y = offset + step * (i-1) + OSD_TEXT_BORDER; | ||
365 | |||
366 | /* draw filled rectangle if selected */ | ||
367 | if(source == i) { | ||
368 | cairo_rectangle(cr, x - OSD_TEXT_BORDER/2, | ||
369 | y - OSD_TEXT_SKIP, | ||
370 | priv->width - OSD_TEXT_BORDER, | ||
371 | step + OSD_TEXT_SKIP); | ||
372 | cairo_fill(cr); | ||
373 | |||
374 | /* temprarily draw with background color */ | ||
375 | #ifndef OSD_COLOR | ||
376 | GdkColor bg = osd->widget->style->bg[GTK_STATE_NORMAL]; | ||
377 | gdk_cairo_set_source_color(cr, &bg); | ||
378 | #else | ||
379 | cairo_set_source_rgb (cr, OSD_COLOR_BG); | ||
380 | #endif | ||
381 | } | ||
382 | |||
383 | cairo_move_to (cr, x, y + OSD_TEXT_SKIP - extents.y_bearing); | ||
384 | cairo_show_text (cr, src); | ||
385 | |||
386 | /* restore color */ | ||
387 | if(source == i) { | ||
388 | #ifndef OSD_COLOR | ||
389 | GdkColor fg = osd->widget->style->fg[GTK_STATE_NORMAL]; | ||
390 | gdk_cairo_set_source_color(cr, &fg); | ||
391 | #else | ||
392 | cairo_set_source_rgb (cr, OSD_COLOR); | ||
393 | #endif | ||
394 | } | ||
395 | } | ||
396 | } | ||
397 | harbaum | 86 | } |
398 | } | ||
399 | |||
400 | static void | ||
401 | osd_render_source_sel(osm_gps_map_osd_t *osd) { | ||
402 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
403 | |||
404 | #ifndef OSD_COLOR | ||
405 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
406 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
407 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
408 | #endif | ||
409 | |||
410 | /* draw source selector */ | ||
411 | cairo_t *cr = cairo_create(priv->map_source); | ||
412 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | ||
413 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
414 | cairo_paint(cr); | ||
415 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
416 | |||
417 | #ifdef OSD_SHADOW_ENABLE | ||
418 | osd_source_shape(priv, cr, 1+OSD_SHADOW, 1+OSD_SHADOW); | ||
419 | osd_shape_shadow(cr); | ||
420 | #endif | ||
421 | |||
422 | osd_source_shape(priv, cr, 1, 1); | ||
423 | #ifndef OSD_COLOR | ||
424 | osd_shape(cr, &bg, &fg); | ||
425 | #else | ||
426 | osd_shape(cr); | ||
427 | #endif | ||
428 | |||
429 | #ifdef OSD_SHADOW_ENABLE | ||
430 | osd_labels_shadow(cr, Z_RAD/3, TRUE); | ||
431 | harbaum | 87 | osd_source_content(osd, cr, 1+OSD_LBL_SHADOW); |
432 | cairo_stroke (cr); | ||
433 | harbaum | 86 | #endif |
434 | #ifndef OSD_COLOR | ||
435 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); | ||
436 | #else | ||
437 | osd_labels(cr, Z_RAD/3, TRUE); | ||
438 | #endif | ||
439 | harbaum | 87 | osd_source_content(osd, cr, 1); |
440 | cairo_stroke (cr); | ||
441 | harbaum | 86 | |
442 | cairo_destroy(cr); | ||
443 | } | ||
444 | |||
445 | harbaum | 89 | /* re-allocate the buffer used to draw the menu. This is used */ |
446 | /* to collapse/expand the buffer */ | ||
447 | harbaum | 86 | static void |
448 | osd_source_reallocate(osm_gps_map_osd_t *osd) { | ||
449 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
450 | |||
451 | /* re-allocate offscreen bitmap */ | ||
452 | g_assert (priv->map_source); | ||
453 | |||
454 | int w = OSD_S_W, h = OSD_S_H; | ||
455 | if(priv->expanded) { | ||
456 | harbaum | 87 | cairo_text_extents_t extents; |
457 | |||
458 | /* determine content size */ | ||
459 | cairo_t *cr = cairo_create(priv->map_source); | ||
460 | cairo_select_font_face (cr, "Sans", | ||
461 | CAIRO_FONT_SLANT_NORMAL, | ||
462 | CAIRO_FONT_WEIGHT_BOLD); | ||
463 | cairo_set_font_size (cr, OSD_FONT_SIZE); | ||
464 | |||
465 | /* calculate menu size */ | ||
466 | int i, max_h = 0, max_w = 0; | ||
467 | for(i=OSM_GPS_MAP_SOURCE_NULL+1;i<=OSM_GPS_MAP_SOURCE_LAST;i++) { | ||
468 | const char *src = osm_gps_map_source_get_friendly_name(i); | ||
469 | cairo_text_extents (cr, src, &extents); | ||
470 | |||
471 | if(extents.width > max_w) max_w = extents.width; | ||
472 | if(extents.height > max_h) max_h = extents.height; | ||
473 | } | ||
474 | cairo_destroy(cr); | ||
475 | |||
476 | priv->width = max_w + 2*OSD_TEXT_BORDER; | ||
477 | priv->height = OSM_GPS_MAP_SOURCE_LAST * | ||
478 | (max_h + 2*OSD_TEXT_SKIP) + 2*OSD_TEXT_BORDER; | ||
479 | |||
480 | harbaum | 86 | w = OSD_S_EXP_W; |
481 | h = OSD_S_EXP_H; | ||
482 | } | ||
483 | |||
484 | harbaum | 87 | cairo_surface_destroy(priv->map_source); |
485 | harbaum | 86 | priv->map_source = |
486 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, w+2, h+2); | ||
487 | |||
488 | osd_render_source_sel(osd); | ||
489 | } | ||
490 | |||
491 | #define OSD_HZ 15 | ||
492 | harbaum | 87 | #define OSD_TIME 500 |
493 | harbaum | 86 | |
494 | static gboolean osd_source_animate(gpointer data) { | ||
495 | osm_gps_map_osd_t *osd = (osm_gps_map_osd_t*)data; | ||
496 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
497 | int diff = OSD_S_EXP_W - OSD_S_W - OSD_S_X; | ||
498 | gboolean done = FALSE; | ||
499 | priv->count += priv->dir; | ||
500 | |||
501 | /* shifting in */ | ||
502 | if(priv->dir < 0) { | ||
503 | if(priv->count <= 0) { | ||
504 | priv->count = 0; | ||
505 | done = TRUE; | ||
506 | } | ||
507 | } else { | ||
508 | if(priv->count >= 1000) { | ||
509 | priv->expanded = FALSE; | ||
510 | osd_source_reallocate(osd); | ||
511 | |||
512 | priv->count = 1000; | ||
513 | done = TRUE; | ||
514 | } | ||
515 | } | ||
516 | |||
517 | |||
518 | /* count runs linearly from 0 to 1000, map this nicely onto a position */ | ||
519 | |||
520 | /* nicer sinoid mapping */ | ||
521 | float m = 0.5-cos(priv->count * M_PI / 1000.0)/2; | ||
522 | priv->shift = (osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X) + | ||
523 | m * diff; | ||
524 | |||
525 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); | ||
526 | |||
527 | if(done) | ||
528 | priv->handler_id = 0; | ||
529 | |||
530 | return !done; | ||
531 | } | ||
532 | |||
533 | /* switch between expand and collapse mode of source selection */ | ||
534 | static void | ||
535 | osd_source_toggle(osm_gps_map_osd_t *osd) | ||
536 | { | ||
537 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
538 | |||
539 | /* ignore clicks while animation is running */ | ||
540 | if(priv->handler_id) | ||
541 | return; | ||
542 | |||
543 | /* expand immediately, collapse is handle at the end of the collapse animation */ | ||
544 | if(!priv->expanded) { | ||
545 | priv->expanded = TRUE; | ||
546 | osd_source_reallocate(osd); | ||
547 | |||
548 | priv->count = 1000; | ||
549 | priv->shift = osd->widget->allocation.width - OSD_S_W; | ||
550 | priv->dir = -1000/OSD_HZ; | ||
551 | } else { | ||
552 | priv->count = 0; | ||
553 | priv->shift = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
554 | priv->dir = +1000/OSD_HZ; | ||
555 | } | ||
556 | |||
557 | priv->handler_id = gtk_timeout_add(OSD_TIME/OSD_HZ, osd_source_animate, osd); | ||
558 | } | ||
559 | |||
560 | harbaum | 89 | /* check if the user clicked inside the source selection area */ |
561 | harbaum | 70 | static osd_button_t |
562 | harbaum | 86 | osd_source_check(osm_gps_map_osd_t *osd, gint x, gint y) { |
563 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
564 | |||
565 | if(!priv->expanded) | ||
566 | x -= osd->widget->allocation.width - OSD_S_W; | ||
567 | else | ||
568 | x -= osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
569 | |||
570 | if(OSD_S_Y > 0) | ||
571 | y -= OSD_S_Y; | ||
572 | else | ||
573 | y -= osd->widget->allocation.height - OSD_S_PH + OSD_S_Y; | ||
574 | |||
575 | /* within square around puller? */ | ||
576 | if(y > 0 && y < OSD_S_PH && x > 0 && x < OSD_S_PW) { | ||
577 | /* really within puller shape? */ | ||
578 | if(x > Z_RAD || osm_gps_map_in_circle(x, y, Z_RAD, Z_RAD, Z_RAD)) { | ||
579 | /* expand source selector */ | ||
580 | osd_source_toggle(osd); | ||
581 | |||
582 | /* tell upper layers that user clicked some background element */ | ||
583 | /* of the OSD */ | ||
584 | return OSD_BG; | ||
585 | } | ||
586 | } | ||
587 | harbaum | 88 | |
588 | /* check for clicks into data area */ | ||
589 | harbaum | 89 | if(priv->expanded && !priv->handler_id) { |
590 | harbaum | 94 | /* re-adjust from puller top to content top */ |
591 | if(OSD_S_Y < 0) | ||
592 | y += OSD_S_EXP_H - OSD_S_PH; | ||
593 | |||
594 | harbaum | 88 | if(x > OSD_S_PW && |
595 | x < OSD_S_PW + OSD_S_EXP_W && | ||
596 | y > 0 && | ||
597 | y < OSD_S_EXP_H) { | ||
598 | harbaum | 94 | |
599 | harbaum | 89 | int step = (priv->height - 2*OSD_TEXT_BORDER) |
600 | / OSM_GPS_MAP_SOURCE_LAST; | ||
601 | harbaum | 88 | |
602 | harbaum | 89 | y -= OSD_TEXT_BORDER - OSD_TEXT_SKIP; |
603 | y /= step; | ||
604 | y += 1; | ||
605 | |||
606 | gint old = 0; | ||
607 | g_object_get(osd->widget, "map-source", &old, NULL); | ||
608 | |||
609 | if(y > OSM_GPS_MAP_SOURCE_NULL && | ||
610 | y <= OSM_GPS_MAP_SOURCE_LAST && | ||
611 | old != y) { | ||
612 | g_object_set(osd->widget, "map-source", y, NULL); | ||
613 | |||
614 | osd_render_source_sel(osd); | ||
615 | osm_gps_map_repaint(OSM_GPS_MAP(osd->widget)); | ||
616 | } | ||
617 | |||
618 | /* return "clicked in OSD background" to prevent further */ | ||
619 | /* processing by application */ | ||
620 | harbaum | 88 | return OSD_BG; |
621 | } | ||
622 | } | ||
623 | |||
624 | harbaum | 86 | return OSD_NONE; |
625 | } | ||
626 | harbaum | 88 | #endif // OSD_SOURCE_SEL |
627 | harbaum | 86 | |
628 | static osd_button_t | ||
629 | osd_check(osm_gps_map_osd_t *osd, gint x, gint y) { | ||
630 | harbaum | 70 | osd_button_t but = OSD_NONE; |
631 | |||
632 | harbaum | 86 | #ifdef OSD_SOURCE_SEL |
633 | /* the source selection area is handles internally */ | ||
634 | but = osd_source_check(osd, x, y); | ||
635 | if(but != OSD_NONE) | ||
636 | return but; | ||
637 | #endif | ||
638 | |||
639 | harbaum | 77 | x -= OSD_X; |
640 | y -= OSD_Y; | ||
641 | |||
642 | if(OSD_X < 0) | ||
643 | x -= (osd->widget->allocation.width - OSD_W); | ||
644 | |||
645 | if(OSD_Y < 0) | ||
646 | y -= (osd->widget->allocation.height - OSD_H); | ||
647 | |||
648 | harbaum | 70 | /* first do a rough test for the OSD area. */ |
649 | /* this is just to avoid an unnecessary detailed test */ | ||
650 | harbaum | 77 | if(x > 0 && x < OSD_W && y > 0 && y < OSD_H) { |
651 | harbaum | 76 | #ifndef OSD_NO_DPAD |
652 | harbaum | 86 | but = osd_check_dpad(x, y); |
653 | harbaum | 76 | #endif |
654 | harbaum | 70 | |
655 | if(but == OSD_NONE) | ||
656 | harbaum | 86 | but = osd_check_zoom(x, y); |
657 | harbaum | 70 | } |
658 | |||
659 | return but; | ||
660 | } | ||
661 | |||
662 | harbaum | 76 | #ifndef OSD_NO_DPAD |
663 | harbaum | 70 | static void |
664 | harbaum | 86 | osd_dpad_labels(cairo_t *cr, gint x, gint y) { |
665 | harbaum | 70 | /* move reference to dpad center */ |
666 | x += D_RAD; | ||
667 | y += D_RAD; | ||
668 | |||
669 | const static gint offset[][3][2] = { | ||
670 | /* left arrow/triangle */ | ||
671 | { { -D_TIP+D_LEN, -D_WID }, { -D_LEN, D_WID }, { +D_LEN, D_WID } }, | ||
672 | /* right arrow/triangle */ | ||
673 | { { +D_TIP-D_LEN, -D_WID }, { +D_LEN, D_WID }, { -D_LEN, D_WID } }, | ||
674 | /* top arrow/triangle */ | ||
675 | { { -D_WID, -D_TIP+D_LEN }, { D_WID, -D_LEN }, { D_WID, +D_LEN } }, | ||
676 | /* bottom arrow/triangle */ | ||
677 | { { -D_WID, +D_TIP-D_LEN }, { D_WID, +D_LEN }, { D_WID, -D_LEN } } | ||
678 | }; | ||
679 | |||
680 | int i; | ||
681 | for(i=0;i<4;i++) { | ||
682 | cairo_move_to (cr, x + offset[i][0][0], y + offset[i][0][1]); | ||
683 | cairo_rel_line_to (cr, offset[i][1][0], offset[i][1][1]); | ||
684 | cairo_rel_line_to (cr, offset[i][2][0], offset[i][2][1]); | ||
685 | } | ||
686 | } | ||
687 | harbaum | 76 | #endif |
688 | harbaum | 70 | |
689 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
690 | /* draw the satellite dish icon in the center of the dpad */ | ||
691 | harbaum | 77 | #define GPS_V0 (D_RAD/7) |
692 | harbaum | 70 | #define GPS_V1 (D_RAD/10) |
693 | #define GPS_V2 (D_RAD/5) | ||
694 | |||
695 | /* draw a satellite receiver dish */ | ||
696 | harbaum | 77 | /* this is either drawn in the center of the dpad (if present) */ |
697 | /* or in the middle of the zoom area */ | ||
698 | harbaum | 70 | static void |
699 | harbaum | 86 | osd_dpad_gps(cairo_t *cr, gint x, gint y) { |
700 | harbaum | 70 | /* move reference to dpad center */ |
701 | harbaum | 77 | x += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD * 3; |
702 | y += (1-Z_GPS) * D_RAD + Z_GPS * Z_RAD + GPS_V0; | ||
703 | harbaum | 70 | |
704 | cairo_move_to (cr, x-GPS_V0, y+GPS_V0); | ||
705 | cairo_rel_line_to (cr, +GPS_V0, -GPS_V0); | ||
706 | cairo_rel_line_to (cr, +GPS_V0, +GPS_V0); | ||
707 | cairo_close_path (cr); | ||
708 | |||
709 | cairo_move_to (cr, x+GPS_V1-GPS_V2, y-2*GPS_V2); | ||
710 | cairo_curve_to (cr, x-GPS_V2, y, x+GPS_V1, y+GPS_V1, x+GPS_V1+GPS_V2, y); | ||
711 | cairo_close_path (cr); | ||
712 | |||
713 | x += GPS_V1; | ||
714 | cairo_move_to (cr, x, y-GPS_V2); | ||
715 | cairo_rel_line_to (cr, +GPS_V1, -GPS_V1); | ||
716 | } | ||
717 | harbaum | 76 | #endif |
718 | harbaum | 70 | |
719 | #define Z_LEN (2*Z_RAD/3) | ||
720 | |||
721 | static void | ||
722 | harbaum | 86 | osd_zoom_labels(cairo_t *cr, gint x, gint y) { |
723 | harbaum | 70 | cairo_move_to (cr, x + Z_LEFT - Z_LEN, y + Z_MID); |
724 | cairo_line_to (cr, x + Z_LEFT + Z_LEN, y + Z_MID); | ||
725 | |||
726 | cairo_move_to (cr, x + Z_RIGHT, y + Z_MID - Z_LEN); | ||
727 | cairo_line_to (cr, x + Z_RIGHT, y + Z_MID + Z_LEN); | ||
728 | cairo_move_to (cr, x + Z_RIGHT - Z_LEN, y + Z_MID); | ||
729 | cairo_line_to (cr, x + Z_RIGHT + Z_LEN, y + Z_MID); | ||
730 | } | ||
731 | |||
732 | harbaum | 103 | /* various parameters used to create the scale */ |
733 | #define OSD_SCALE_H2 (OSD_SCALE_H/2) | ||
734 | #define OSD_SCALE_TICK (2*OSD_SCALE_FONT_SIZE/3) | ||
735 | #define OSD_SCALE_M (OSD_SCALE_H2 - OSD_SCALE_TICK) | ||
736 | #define OSD_SCALE_I (OSD_SCALE_H2 + OSD_SCALE_TICK) | ||
737 | #define OSD_SCALE_FD (OSD_SCALE_FONT_SIZE/4) | ||
738 | harbaum | 99 | |
739 | harbaum | 70 | static void |
740 | harbaum | 98 | osd_render_scale(osm_gps_map_osd_t *osd) |
741 | { | ||
742 | harbaum | 86 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
743 | harbaum | 103 | |
744 | /* this only needs to be rendered if the zoom has changed */ | ||
745 | gint zoom; | ||
746 | g_object_get(OSM_GPS_MAP(osd->widget), "zoom", &zoom, NULL); | ||
747 | if(zoom == priv->scale_zoom) | ||
748 | return; | ||
749 | |||
750 | priv->scale_zoom = zoom; | ||
751 | |||
752 | harbaum | 99 | float m_per_pix = osm_gps_map_get_scale(OSM_GPS_MAP(osd->widget)); |
753 | harbaum | 70 | |
754 | harbaum | 98 | /* first fill with transparency */ |
755 | cairo_t *cr = cairo_create(priv->scale); | ||
756 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); | ||
757 | harbaum | 100 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); |
758 | harbaum | 103 | // pink for testing: cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.2); |
759 | harbaum | 98 | cairo_paint(cr); |
760 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
761 | |||
762 | /* determine the size of the scale width in meters */ | ||
763 | harbaum | 103 | float width = (OSD_SCALE_W-OSD_SCALE_FONT_SIZE/6) * m_per_pix; |
764 | harbaum | 102 | |
765 | harbaum | 98 | /* scale this to useful values */ |
766 | int exp = logf(width)*M_LOG10E; | ||
767 | int mant = width/pow(10,exp); | ||
768 | harbaum | 99 | int width_metric = mant * pow(10,exp); |
769 | harbaum | 103 | char *dist_str = NULL; |
770 | if(width_metric<1000) | ||
771 | dist_str = g_strdup_printf("%u m", width_metric); | ||
772 | else | ||
773 | dist_str = g_strdup_printf("%u km", width_metric/1000); | ||
774 | harbaum | 99 | width_metric /= m_per_pix; |
775 | |||
776 | harbaum | 102 | /* and now the hard part: scale for useful imperial values :-( */ |
777 | /* try to convert to feet, 1ft == 0.3048 m */ | ||
778 | width /= 0.3048; | ||
779 | float imp_scale = 0.3048; | ||
780 | char *dist_imp_unit = "ft"; | ||
781 | harbaum | 99 | |
782 | harbaum | 102 | if(width >= 100) { |
783 | /* 1yd == 3 feet */ | ||
784 | width /= 3.0; | ||
785 | imp_scale *= 3.0; | ||
786 | dist_imp_unit = "yd"; | ||
787 | |||
788 | if(width >= 1760.0) { | ||
789 | /* 1mi == 1760 yd */ | ||
790 | width /= 1760.0; | ||
791 | imp_scale *= 1760.0; | ||
792 | dist_imp_unit = "mi"; | ||
793 | } | ||
794 | } | ||
795 | |||
796 | harbaum | 103 | /* also convert this to full tens/hundreds */ |
797 | exp = logf(width)*M_LOG10E; | ||
798 | mant = width/pow(10,exp); | ||
799 | int width_imp = mant * pow(10,exp); | ||
800 | char *dist_str_imp = g_strdup_printf("%u %s", width_imp, dist_imp_unit); | ||
801 | harbaum | 102 | |
802 | harbaum | 103 | /* convert back to pixels */ |
803 | width_imp *= imp_scale; | ||
804 | width_imp /= m_per_pix; | ||
805 | |||
806 | harbaum | 99 | cairo_select_font_face (cr, "Sans", |
807 | CAIRO_FONT_SLANT_NORMAL, | ||
808 | CAIRO_FONT_WEIGHT_BOLD); | ||
809 | harbaum | 102 | cairo_set_font_size (cr, OSD_SCALE_FONT_SIZE); |
810 | harbaum | 99 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); |
811 | |||
812 | cairo_text_extents_t extents; | ||
813 | cairo_text_extents (cr, dist_str, &extents); | ||
814 | |||
815 | harbaum | 100 | cairo_set_source_rgb(cr, 1.0, 1.0, 1.0); |
816 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6); |
817 | cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD); | ||
818 | harbaum | 100 | cairo_text_path (cr, dist_str); |
819 | cairo_stroke (cr); | ||
820 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, |
821 | OSD_SCALE_H2+OSD_SCALE_FD + extents.height); | ||
822 | cairo_text_path (cr, dist_str_imp); | ||
823 | cairo_stroke (cr); | ||
824 | harbaum | 100 | |
825 | cairo_set_source_rgb(cr, 0.0, 0.0, 0.0); | ||
826 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, OSD_SCALE_H2-OSD_SCALE_FD); |
827 | harbaum | 99 | cairo_show_text (cr, dist_str); |
828 | harbaum | 103 | cairo_move_to (cr, 2*OSD_SCALE_FD, |
829 | OSD_SCALE_H2+OSD_SCALE_FD + extents.height); | ||
830 | cairo_show_text (cr, dist_str_imp); | ||
831 | harbaum | 99 | |
832 | harbaum | 103 | g_free(dist_str); |
833 | g_free(dist_str_imp); | ||
834 | |||
835 | harbaum | 99 | /* draw white line */ |
836 | cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND); | ||
837 | cairo_set_source_rgba(cr, 1.0, 1.0, 1.0, 1.0); | ||
838 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/3); |
839 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M); | ||
840 | cairo_rel_line_to (cr, 0, OSD_SCALE_TICK); | ||
841 | harbaum | 99 | cairo_rel_line_to (cr, width_metric, 0); |
842 | harbaum | 103 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); |
843 | harbaum | 99 | cairo_stroke(cr); |
844 | harbaum | 103 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I); |
845 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); | ||
846 | cairo_rel_line_to (cr, width_imp, 0); | ||
847 | cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK); | ||
848 | cairo_stroke(cr); | ||
849 | harbaum | 99 | |
850 | /* draw black line */ | ||
851 | cairo_set_source_rgba(cr, 0.0, 0.0, 0.0, 1.0); | ||
852 | harbaum | 103 | cairo_set_line_width (cr, OSD_SCALE_FONT_SIZE/6); |
853 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_M); | ||
854 | cairo_rel_line_to (cr, 0, OSD_SCALE_TICK); | ||
855 | harbaum | 99 | cairo_rel_line_to (cr, width_metric, 0); |
856 | harbaum | 103 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); |
857 | harbaum | 99 | cairo_stroke(cr); |
858 | harbaum | 103 | cairo_move_to (cr, OSD_SCALE_FONT_SIZE/6, OSD_SCALE_I); |
859 | cairo_rel_line_to (cr, 0, -OSD_SCALE_TICK); | ||
860 | cairo_rel_line_to (cr, width_imp, 0); | ||
861 | cairo_rel_line_to (cr, 0, +OSD_SCALE_TICK); | ||
862 | cairo_stroke(cr); | ||
863 | harbaum | 99 | |
864 | harbaum | 98 | cairo_destroy(cr); |
865 | } | ||
866 | |||
867 | static void | ||
868 | osd_render(osm_gps_map_osd_t *osd) | ||
869 | { | ||
870 | osd_priv_t *priv = (osd_priv_t*)osd->priv; | ||
871 | |||
872 | harbaum | 86 | #ifndef OSD_COLOR |
873 | GdkColor bg = GTK_WIDGET(osd->widget)->style->bg[GTK_STATE_NORMAL]; | ||
874 | GdkColor fg = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_NORMAL]; | ||
875 | GdkColor da = GTK_WIDGET(osd->widget)->style->fg[GTK_STATE_INSENSITIVE]; | ||
876 | harbaum | 74 | #endif |
877 | harbaum | 70 | |
878 | /* first fill with transparency */ | ||
879 | harbaum | 73 | cairo_t *cr = cairo_create(priv->overlay); |
880 | harbaum | 70 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
881 | cairo_set_source_rgba(cr, 1.0, 0.0, 0.0, 0.0); | ||
882 | cairo_paint(cr); | ||
883 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); | ||
884 | |||
885 | /* --------- draw zoom and dpad shape shadow ----------- */ | ||
886 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
887 | harbaum | 86 | osd_zoom_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
888 | osd_shape_shadow(cr); | ||
889 | harbaum | 76 | #ifndef OSD_NO_DPAD |
890 | harbaum | 86 | osd_dpad_shape(cr, 1+OSD_SHADOW, 1+OSD_SHADOW); |
891 | osd_shape_shadow(cr); | ||
892 | harbaum | 74 | #endif |
893 | harbaum | 76 | #endif |
894 | harbaum | 70 | |
895 | /* --------- draw zoom and dpad shape ----------- */ | ||
896 | |||
897 | harbaum | 86 | osd_zoom_shape(cr, 1, 1); |
898 | harbaum | 74 | #ifndef OSD_COLOR |
899 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
900 | harbaum | 74 | #else |
901 | harbaum | 86 | osd_shape(cr); |
902 | harbaum | 74 | #endif |
903 | harbaum | 76 | #ifndef OSD_NO_DPAD |
904 | harbaum | 86 | osd_dpad_shape(cr, 1, 1); |
905 | harbaum | 74 | #ifndef OSD_COLOR |
906 | harbaum | 86 | osd_shape(cr, &bg, &fg); |
907 | harbaum | 74 | #else |
908 | harbaum | 86 | osd_shape(cr); |
909 | harbaum | 74 | #endif |
910 | harbaum | 76 | #endif |
911 | harbaum | 70 | |
912 | /* --------- draw zoom and dpad labels --------- */ | ||
913 | |||
914 | harbaum | 74 | #ifdef OSD_SHADOW_ENABLE |
915 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/3, TRUE); |
916 | harbaum | 86 | osd_zoom_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
917 | harbaum | 76 | #ifndef OSD_NO_DPAD |
918 | harbaum | 86 | osd_dpad_labels(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
919 | harbaum | 76 | #endif |
920 | harbaum | 87 | cairo_stroke(cr); |
921 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
922 | harbaum | 87 | osd_labels_shadow(cr, Z_RAD/6, osd->cb != NULL); |
923 | harbaum | 86 | osd_dpad_gps(cr, 1+OSD_LBL_SHADOW, 1+OSD_LBL_SHADOW); |
924 | harbaum | 87 | cairo_stroke(cr); |
925 | harbaum | 74 | #endif |
926 | harbaum | 76 | #endif |
927 | harbaum | 70 | |
928 | harbaum | 74 | #ifndef OSD_COLOR |
929 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE, &fg, &da); |
930 | harbaum | 74 | #else |
931 | harbaum | 86 | osd_labels(cr, Z_RAD/3, TRUE); |
932 | harbaum | 74 | #endif |
933 | harbaum | 87 | osd_zoom_labels(cr, 1, 1); |
934 | #ifndef OSD_NO_DPAD | ||
935 | osd_dpad_labels(cr, 1, 1); | ||
936 | #endif | ||
937 | cairo_stroke(cr); | ||
938 | |||
939 | harbaum | 74 | #ifndef OSD_COLOR |
940 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL, &fg, &da); |
941 | harbaum | 74 | #else |
942 | harbaum | 86 | osd_labels(cr, Z_RAD/6, osd->cb != NULL); |
943 | harbaum | 74 | #endif |
944 | harbaum | 87 | #ifdef OSD_GPS_BUTTON |
945 | osd_dpad_gps(cr, 1, 1); | ||
946 | harbaum | 76 | #endif |
947 | harbaum | 87 | cairo_stroke(cr); |
948 | harbaum | 70 | |
949 | cairo_destroy(cr); | ||
950 | harbaum | 86 | |
951 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
952 | harbaum | 86 | osd_render_source_sel(osd); |
953 | harbaum | 88 | #endif |
954 | harbaum | 98 | |
955 | #ifdef OSD_SCALE | ||
956 | osd_render_scale(osd); | ||
957 | #endif | ||
958 | harbaum | 70 | } |
959 | |||
960 | static void | ||
961 | harbaum | 86 | osd_draw(osm_gps_map_osd_t *osd, GdkDrawable *drawable) |
962 | harbaum | 70 | { |
963 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t*)osd->priv; |
964 | harbaum | 70 | |
965 | /* OSD itself uses some off-screen rendering, so check if the */ | ||
966 | /* offscreen buffer is present and create it if not */ | ||
967 | harbaum | 73 | if(!priv->overlay) { |
968 | harbaum | 70 | /* create overlay ... */ |
969 | harbaum | 73 | priv->overlay = |
970 | harbaum | 86 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, OSD_W+2, OSD_H+2); |
971 | |||
972 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
973 | harbaum | 86 | /* the initial OSD state is alway not-expanded */ |
974 | priv->map_source = | ||
975 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
976 | OSD_S_W+2, OSD_S_H+2); | ||
977 | harbaum | 88 | #endif |
978 | harbaum | 86 | |
979 | harbaum | 98 | #ifdef OSD_SCALE |
980 | priv->scale = | ||
981 | cairo_image_surface_create(CAIRO_FORMAT_ARGB32, | ||
982 | harbaum | 103 | OSD_SCALE_W, OSD_SCALE_H); |
983 | priv->scale_zoom = -1; | ||
984 | harbaum | 98 | #endif |
985 | |||
986 | harbaum | 70 | /* ... and render it */ |
987 | harbaum | 86 | osd_render(osd); |
988 | harbaum | 70 | } |
989 | |||
990 | // now draw this onto the original context | ||
991 | harbaum | 75 | cairo_t *cr = gdk_cairo_create(drawable); |
992 | harbaum | 77 | |
993 | int x = OSD_X, y = OSD_Y; | ||
994 | if(OSD_X < 0) | ||
995 | x = osd->widget->allocation.width - OSD_W + OSD_X; | ||
996 | |||
997 | if(OSD_Y < 0) | ||
998 | y = osd->widget->allocation.height - OSD_H + OSD_Y; | ||
999 | |||
1000 | cairo_set_source_surface(cr, priv->overlay, x, y); | ||
1001 | harbaum | 70 | cairo_paint(cr); |
1002 | harbaum | 86 | |
1003 | #ifdef OSD_SOURCE_SEL | ||
1004 | if(!priv->handler_id) { | ||
1005 | /* the OSD source selection is not being animated */ | ||
1006 | if(!priv->expanded) | ||
1007 | x = osd->widget->allocation.width - OSD_S_W; | ||
1008 | else | ||
1009 | x = osd->widget->allocation.width - OSD_S_EXP_W + OSD_S_X; | ||
1010 | } else | ||
1011 | x = priv->shift; | ||
1012 | |||
1013 | y = OSD_S_Y; | ||
1014 | if(OSD_S_Y < 0) { | ||
1015 | if(!priv->expanded) | ||
1016 | y = osd->widget->allocation.height - OSD_S_H + OSD_S_Y; | ||
1017 | else | ||
1018 | y = osd->widget->allocation.height - OSD_S_EXP_H + OSD_S_Y; | ||
1019 | } | ||
1020 | |||
1021 | cairo_set_source_surface(cr, priv->map_source, x, y); | ||
1022 | cairo_paint(cr); | ||
1023 | #endif | ||
1024 | |||
1025 | harbaum | 98 | #ifdef OSD_SCALE |
1026 | x = OSD_X; | ||
1027 | y = -OSD_Y; | ||
1028 | if(x < 0) x += osd->widget->allocation.width - OSD_SCALE_W; | ||
1029 | if(y < 0) y += osd->widget->allocation.height - OSD_SCALE_H; | ||
1030 | |||
1031 | cairo_set_source_surface(cr, priv->scale, x, y); | ||
1032 | cairo_paint(cr); | ||
1033 | #endif | ||
1034 | |||
1035 | harbaum | 70 | cairo_destroy(cr); |
1036 | } | ||
1037 | |||
1038 | static void | ||
1039 | harbaum | 86 | osd_free(osm_gps_map_osd_t *osd) |
1040 | harbaum | 70 | { |
1041 | harbaum | 73 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
1042 | harbaum | 70 | |
1043 | harbaum | 88 | if (priv->overlay) |
1044 | cairo_surface_destroy(priv->overlay); | ||
1045 | |||
1046 | #ifdef OSD_SOURCE_SEL | ||
1047 | harbaum | 86 | if(priv->handler_id) |
1048 | gtk_timeout_remove(priv->handler_id); | ||
1049 | |||
1050 | if (priv->map_source) | ||
1051 | cairo_surface_destroy(priv->map_source); | ||
1052 | harbaum | 88 | #endif |
1053 | harbaum | 86 | |
1054 | harbaum | 98 | #ifdef OSD_SCALE |
1055 | if (priv->scale) | ||
1056 | cairo_surface_destroy(priv->scale); | ||
1057 | #endif | ||
1058 | |||
1059 | harbaum | 73 | g_free(priv); |
1060 | } | ||
1061 | |||
1062 | harbaum | 87 | static gboolean |
1063 | osd_busy(osm_gps_map_osd_t *osd) | ||
1064 | { | ||
1065 | harbaum | 88 | #ifdef OSD_SOURCE_SEL |
1066 | harbaum | 87 | osd_priv_t *priv = (osd_priv_t *)(osd->priv); |
1067 | return (priv->handler_id != 0); | ||
1068 | harbaum | 88 | #else |
1069 | return FALSE; | ||
1070 | #endif | ||
1071 | harbaum | 87 | } |
1072 | |||
1073 | harbaum | 73 | static osm_gps_map_osd_t osd_classic = { |
1074 | harbaum | 88 | .widget = NULL, |
1075 | |||
1076 | harbaum | 86 | .draw = osd_draw, |
1077 | .check = osd_check, | ||
1078 | .render = osd_render, | ||
1079 | .free = osd_free, | ||
1080 | harbaum | 87 | .busy = osd_busy, |
1081 | harbaum | 73 | |
1082 | .cb = NULL, | ||
1083 | .data = NULL, | ||
1084 | |||
1085 | .priv = NULL | ||
1086 | }; | ||
1087 | |||
1088 | /* this is the only function that's externally visible */ | ||
1089 | void | ||
1090 | osm_gps_map_osd_classic_init(OsmGpsMap *map) | ||
1091 | { | ||
1092 | osd_priv_t *priv = osd_classic.priv = g_new0(osd_priv_t, 1); | ||
1093 | |||
1094 | osd_classic.priv = priv; | ||
1095 | |||
1096 | osm_gps_map_register_osd(map, &osd_classic); | ||
1097 | } | ||
1098 | |||
1099 | harbaum | 76 | #ifdef OSD_GPS_BUTTON |
1100 | harbaum | 74 | /* below are osd specific functions which aren't used by osm-gps-map */ |
1101 | /* but instead are to be used by the main application */ | ||
1102 | harbaum | 76 | void osm_gps_map_osd_enable_gps (OsmGpsMap *map, OsmGpsMapOsdCallback cb, |
1103 | gpointer data) { | ||
1104 | harbaum | 73 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); |
1105 | g_return_if_fail (osd); | ||
1106 | |||
1107 | osd->cb = cb; | ||
1108 | osd->data = data; | ||
1109 | |||
1110 | harbaum | 70 | /* this may have changed the state of the gps button */ |
1111 | /* we thus re-render the overlay */ | ||
1112 | harbaum | 73 | osd->render(osd); |
1113 | harbaum | 70 | |
1114 | harbaum | 73 | osm_gps_map_redraw(map); |
1115 | harbaum | 70 | } |
1116 | harbaum | 76 | #endif |
1117 | harbaum | 86 | |
1118 | osd_button_t | ||
1119 | osm_gps_map_osd_check(OsmGpsMap *map, gint x, gint y) { | ||
1120 | osm_gps_map_osd_t *osd = osm_gps_map_osd_get(map); | ||
1121 | g_return_val_if_fail (osd, OSD_NONE); | ||
1122 | |||
1123 | return osd_check(osd, x, y); | ||
1124 | } |