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