1 /**
2 * @file lv_demo_music_main.c
3 *
4 */
5
6 /*********************
7 * INCLUDES
8 *********************/
9 #include "lv_demo_music_main.h"
10 #if LV_USE_DEMO_MUSIC
11
12 #include "lv_demo_music_list.h"
13 #include "assets/spectrum_1.h"
14 #include "assets/spectrum_2.h"
15 #include "assets/spectrum_3.h"
16 #include "../../lvgl_private.h"
17
18 /*********************
19 * DEFINES
20 *********************/
21 #define ACTIVE_TRACK_CNT 3
22 #define INTRO_TIME 2000
23 #define BAR_COLOR1 lv_color_hex(0xe9dbfc)
24 #define BAR_COLOR2 lv_color_hex(0x6f8af6)
25 #define BAR_COLOR3 lv_color_hex(0xffffff)
26 #if LV_DEMO_MUSIC_LARGE
27 #define BAR_COLOR1_STOP 160
28 #define BAR_COLOR2_STOP 200
29 #define BAR_REST_RADIUS 165
30 #else
31 #define BAR_COLOR1_STOP 80
32 #define BAR_COLOR2_STOP 100
33 #define BAR_REST_RADIUS 82
34 #endif
35 #define BAR_COLOR3_STOP (LV_MAX(LV_HOR_RES, LV_VER_RES) / 3)
36 #define BAR_CNT 20
37 #define DEG_STEP (180/BAR_CNT)
38 #define BAND_CNT 4
39 #define BAR_PER_BAND_CNT (BAR_CNT / BAND_CNT)
40
41 /**********************
42 * TYPEDEFS
43 **********************/
44
45 /**********************
46 * STATIC PROTOTYPES
47 **********************/
48 static lv_obj_t * create_cont(lv_obj_t * parent);
49 static void create_wave_images(lv_obj_t * parent);
50 static lv_obj_t * create_title_box(lv_obj_t * parent);
51 static lv_obj_t * create_icon_box(lv_obj_t * parent);
52 static lv_obj_t * create_spectrum_obj(lv_obj_t * parent);
53 static lv_obj_t * create_ctrl_box(lv_obj_t * parent);
54 static lv_obj_t * create_handle(lv_obj_t * parent);
55
56 static void spectrum_anim_cb(void * a, int32_t v);
57 static void start_anim_cb(void * var, int32_t v);
58 static void del_counter_timer_cb(lv_event_t * e);
59 static void spectrum_draw_event_cb(lv_event_t * e);
60 static lv_obj_t * album_image_create(lv_obj_t * parent);
61 static void album_gesture_event_cb(lv_event_t * e);
62 static void play_event_click_cb(lv_event_t * e);
63 static void prev_click_event_cb(lv_event_t * e);
64 static void next_click_event_cb(lv_event_t * e);
65 static void timer_cb(lv_timer_t * t);
66 static void track_load(uint32_t id);
67 static void stop_start_anim(lv_timer_t * t);
68 static void spectrum_end_cb(lv_anim_t * a);
69 static void album_fade_anim_cb(void * var, int32_t v);
70 static int32_t get_cos(int32_t deg, int32_t a);
71 static int32_t get_sin(int32_t deg, int32_t a);
72
73 /**********************
74 * STATIC VARIABLES
75 **********************/
76 static lv_obj_t * main_cont;
77 static lv_obj_t * spectrum_obj;
78 static lv_obj_t * title_label;
79 static lv_obj_t * artist_label;
80 static lv_obj_t * genre_label;
81 static lv_obj_t * time_obj;
82 static lv_obj_t * album_image_obj;
83 static lv_obj_t * slider_obj;
84 static uint32_t spectrum_i = 0;
85 static uint32_t spectrum_i_pause = 0;
86 static uint32_t bar_ofs = 0;
87 static uint32_t bar_rot = 0;
88 static uint32_t time_act;
89 static lv_timer_t * stop_start_anim_timer;
90 static lv_timer_t * sec_counter_timer;
91 static const lv_font_t * font_small;
92 static const lv_font_t * font_large;
93 static uint32_t track_id;
94 static bool playing;
95 static bool start_anim;
96 static int32_t start_anim_values[40];
97 static lv_obj_t * play_obj;
98 static const uint16_t (* spectrum)[4];
99 static uint32_t spectrum_len;
100 static const uint16_t rnd_array[30] = {994, 285, 553, 11, 792, 707, 966, 641, 852, 827, 44, 352, 146, 581, 490, 80, 729, 58, 695, 940, 724, 561, 124, 653, 27, 292, 557, 506, 382, 199};
101
102 /**********************
103 * MACROS
104 **********************/
105
106 /**********************
107 * GLOBAL FUNCTIONS
108 **********************/
109
110 /*
111 * Callback adapter function to convert parameter types to avoid compile-time
112 * warning.
113 */
_image_set_scale_anim_cb(void * obj,int32_t scale)114 static void _image_set_scale_anim_cb(void * obj, int32_t scale)
115 {
116 lv_image_set_scale((lv_obj_t *)obj, (uint16_t)scale);
117 }
118
119 /*
120 * Callback adapter function to convert parameter types to avoid compile-time
121 * warning.
122 */
_obj_set_x_anim_cb(void * obj,int32_t x)123 static void _obj_set_x_anim_cb(void * obj, int32_t x)
124 {
125 lv_obj_set_x((lv_obj_t *)obj, (int32_t)x);
126 }
127
lv_demo_music_main_create(lv_obj_t * parent)128 lv_obj_t * lv_demo_music_main_create(lv_obj_t * parent)
129 {
130 font_small = LV_FONT_DEFAULT;
131 font_large = LV_FONT_DEFAULT;
132
133 #if LV_DEMO_MUSIC_LARGE
134 #if LV_FONT_MONTSERRAT_22
135 font_small = &lv_font_montserrat_22;
136 #else
137 LV_LOG_WARN("LV_FONT_MONTSERRAT_22 is not enabled for the music demo. Using LV_FONT_DEFAULT instead.");
138 #endif
139 #if LV_FONT_MONTSERRAT_32
140 font_large = &lv_font_montserrat_32;
141 #else
142 LV_LOG_WARN("LV_FONT_MONTSERRAT_32 is not enabled for the music demo. Using LV_FONT_DEFAULT instead.");
143 #endif
144 #else
145 #if LV_FONT_MONTSERRAT_12
146 font_small = &lv_font_montserrat_12;
147 #else
148 LV_LOG_WARN("LV_FONT_MONTSERRAT_12 is not enabled for the music demo. Using LV_FONT_DEFAULT instead.");
149 #endif
150 #if LV_FONT_MONTSERRAT_16
151 font_large = &lv_font_montserrat_16;
152 #else
153 LV_LOG_WARN("LV_FONT_MONTSERRAT_16 is not enabled for the music demo. Using LV_FONT_DEFAULT instead.");
154 #endif
155 #endif
156
157 /*Create the content of the music player*/
158 lv_obj_t * cont = create_cont(parent);
159
160 create_wave_images(cont);
161 lv_obj_t * title_box = create_title_box(cont);
162 lv_obj_t * icon_box = create_icon_box(cont);
163 lv_obj_t * ctrl_box = create_ctrl_box(cont);
164 spectrum_obj = create_spectrum_obj(cont);
165 lv_obj_t * handle_box = create_handle(cont);
166
167 #if LV_DEMO_MUSIC_ROUND
168 lv_obj_set_style_pad_hor(cont, LV_HOR_RES / 6, 0);
169 #endif
170
171 /*Arrange the content into a grid*/
172 #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND
173 static const int32_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
174 static int32_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
175 0, /*Spectrum obj, set later*/
176 LV_GRID_CONTENT, /*Title box*/
177 LV_GRID_FR(3), /*Spacer*/
178 LV_GRID_CONTENT, /*Icon box*/
179 LV_GRID_FR(3), /*Spacer*/
180 LV_GRID_CONTENT, /*Control box*/
181 LV_GRID_FR(3), /*Spacer*/
182 LV_GRID_CONTENT, /*Handle box*/
183 LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
184 LV_GRID_TEMPLATE_LAST
185 };
186
187 grid_rows[1] = LV_VER_RES;
188
189 lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows);
190 lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0);
191 lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 1, 1);
192 lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 2, 1);
193 lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 4, 1);
194 lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 6, 1);
195 lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 8, 1);
196 #elif LV_DEMO_MUSIC_LANDSCAPE == 0
197 static const int32_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
198 static const int32_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
199 LV_GRID_FR(1), /*Spacer*/
200 LV_GRID_CONTENT, /*Title box*/
201 LV_GRID_FR(3), /*Spacer*/
202 LV_GRID_CONTENT, /*Icon box*/
203 LV_GRID_FR(3), /*Spacer*/
204 # if LV_DEMO_MUSIC_LARGE == 0
205 250, /*Spectrum obj*/
206 # else
207 480, /*Spectrum obj*/
208 # endif
209 LV_GRID_FR(3), /*Spacer*/
210 LV_GRID_CONTENT, /*Control box*/
211 LV_GRID_FR(3), /*Spacer*/
212 LV_GRID_CONTENT, /*Handle box*/
213 LV_GRID_FR(1), /*Spacer*/
214 LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
215 LV_GRID_TEMPLATE_LAST
216 };
217
218 lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows);
219 lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0);
220 lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 2, 1);
221 lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 4, 1);
222 lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 6, 1);
223 lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 8, 1);
224 lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 10, 1);
225 #else
226 /*Arrange the content into a grid*/
227 static const int32_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST};
228 static const int32_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
229 LV_GRID_FR(1), /*Spacer*/
230 LV_GRID_CONTENT, /*Title box*/
231 LV_GRID_FR(1), /*Spacer*/
232 LV_GRID_CONTENT, /*Icon box*/
233 LV_GRID_FR(3), /*Spacer*/
234 LV_GRID_CONTENT, /*Control box*/
235 LV_GRID_FR(1), /*Spacer*/
236 LV_GRID_CONTENT, /*Handle box*/
237 LV_GRID_FR(1), /*Spacer*/
238 LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/
239 LV_GRID_TEMPLATE_LAST
240 };
241
242 lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows);
243 lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0);
244 lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 2, 1);
245 lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 4, 1);
246 lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 6, 1);
247 lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 2, LV_GRID_ALIGN_CENTER, 8, 1);
248 lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 1, 1, LV_GRID_ALIGN_CENTER, 1, 9);
249 #endif
250
251 sec_counter_timer = lv_timer_create(timer_cb, 1000, NULL);
252 lv_timer_pause(sec_counter_timer);
253
254 /*Animate in the content after the intro time*/
255 lv_anim_t a;
256
257 start_anim = true;
258
259 stop_start_anim_timer = lv_timer_create(stop_start_anim, INTRO_TIME + 3000, NULL);
260 lv_timer_set_repeat_count(stop_start_anim_timer, 1);
261
262 lv_anim_init(&a);
263
264 uint32_t i;
265 lv_anim_set_exec_cb(&a, start_anim_cb);
266 lv_anim_set_values(&a, LV_MAX(LV_HOR_RES, LV_VER_RES) / 2, 0);
267 lv_anim_set_path_cb(&a, lv_anim_path_bounce);
268 for(i = 0; i < BAR_CNT; i++) {
269 lv_anim_set_delay(&a, INTRO_TIME - 200 + (rnd_array[i] % 200));
270 lv_anim_set_duration(&a, 2500 + (rnd_array[i] % 500));
271 lv_anim_set_var(&a, &start_anim_values[i]);
272 lv_anim_start(&a);
273 }
274
275 lv_obj_fade_in(title_box, 1000, INTRO_TIME + 1000);
276 lv_obj_fade_in(icon_box, 1000, INTRO_TIME + 1000);
277 lv_obj_fade_in(ctrl_box, 1000, INTRO_TIME + 1000);
278 lv_obj_fade_in(handle_box, 1000, INTRO_TIME + 1000);
279 lv_obj_fade_in(album_image_obj, 800, INTRO_TIME + 1000);
280 lv_obj_fade_in(spectrum_obj, 0, INTRO_TIME);
281
282 lv_anim_set_path_cb(&a, lv_anim_path_ease_out);
283 lv_anim_set_var(&a, album_image_obj);
284 lv_anim_set_duration(&a, 1000);
285 lv_anim_set_delay(&a, INTRO_TIME + 1000);
286 lv_anim_set_values(&a, 1, LV_SCALE_NONE);
287 lv_anim_set_exec_cb(&a, _image_set_scale_anim_cb);
288 lv_anim_set_completed_cb(&a, NULL);
289 lv_anim_start(&a);
290
291 /* Create an intro from a logo + label */
292 LV_IMAGE_DECLARE(img_lv_demo_music_logo);
293 lv_obj_t * logo = lv_image_create(lv_screen_active());
294 lv_image_set_src(logo, &img_lv_demo_music_logo);
295 lv_obj_move_foreground(logo);
296 lv_obj_align_to(logo, spectrum_obj, LV_ALIGN_CENTER, 0, 0);
297
298 #if LV_DEMO_MUSIC_SQUARE == 0 && LV_DEMO_MUSIC_ROUND == 0
299 lv_obj_t * title = lv_label_create(lv_screen_active());
300 lv_label_set_text(title, "LVGL Demo\nMusic player");
301 lv_obj_set_style_text_align(title, LV_TEXT_ALIGN_CENTER, 0);
302 lv_obj_set_style_text_font(title, font_large, 0);
303 lv_obj_set_style_text_line_space(title, 8, 0);
304 lv_obj_fade_out(title, 500, INTRO_TIME);
305 lv_obj_align_to(title, logo, LV_ALIGN_OUT_LEFT_MID, -20, 0);
306 #endif
307
308
309 lv_anim_set_path_cb(&a, lv_anim_path_ease_in);
310 lv_anim_set_var(&a, logo);
311 lv_anim_set_duration(&a, 400);
312 lv_anim_set_delay(&a, INTRO_TIME + 800);
313 lv_anim_set_values(&a, LV_SCALE_NONE, 10);
314 lv_anim_set_completed_cb(&a, lv_obj_delete_anim_completed_cb);
315 lv_anim_start(&a);
316
317 lv_obj_update_layout(main_cont);
318
319 return main_cont;
320 }
321
lv_demo_music_album_next(bool next)322 void lv_demo_music_album_next(bool next)
323 {
324 uint32_t id = track_id;
325 if(next) {
326 id++;
327 if(id >= ACTIVE_TRACK_CNT) id = 0;
328 }
329 else {
330 if(id == 0) {
331 id = ACTIVE_TRACK_CNT - 1;
332 }
333 else {
334 id--;
335 }
336 }
337
338 if(playing) {
339 lv_demo_music_play(id);
340 }
341 else {
342 track_load(id);
343 }
344 }
345
lv_demo_music_play(uint32_t id)346 void lv_demo_music_play(uint32_t id)
347 {
348 track_load(id);
349
350 lv_demo_music_resume();
351 }
352
lv_demo_music_resume(void)353 void lv_demo_music_resume(void)
354 {
355 playing = true;
356 spectrum_i = spectrum_i_pause;
357 lv_anim_t a;
358 lv_anim_init(&a);
359 lv_anim_set_values(&a, spectrum_i, spectrum_len - 1);
360 lv_anim_set_exec_cb(&a, spectrum_anim_cb);
361 lv_anim_set_var(&a, spectrum_obj);
362 lv_anim_set_duration(&a, ((spectrum_len - spectrum_i) * 1000) / 30);
363 lv_anim_set_reverse_duration(&a, 0);
364 lv_anim_set_completed_cb(&a, spectrum_end_cb);
365 lv_anim_start(&a);
366
367 if(sec_counter_timer) lv_timer_resume(sec_counter_timer);
368 lv_slider_set_range(slider_obj, 0, lv_demo_music_get_track_length(track_id));
369
370 lv_obj_add_state(play_obj, LV_STATE_CHECKED);
371
372 }
373
lv_demo_music_pause(void)374 void lv_demo_music_pause(void)
375 {
376 playing = false;
377 spectrum_i_pause = spectrum_i;
378 spectrum_i = 0;
379 lv_anim_delete(spectrum_obj, spectrum_anim_cb);
380 lv_obj_invalidate(spectrum_obj);
381 lv_image_set_scale(album_image_obj, LV_SCALE_NONE);
382 if(sec_counter_timer) lv_timer_pause(sec_counter_timer);
383 lv_obj_remove_state(play_obj, LV_STATE_CHECKED);
384 }
385
386 /**********************
387 * STATIC FUNCTIONS
388 **********************/
389
create_cont(lv_obj_t * parent)390 static lv_obj_t * create_cont(lv_obj_t * parent)
391 {
392 /*A transparent container in which the player section will be scrolled*/
393 main_cont = lv_obj_create(parent);
394 lv_obj_remove_flag(main_cont, LV_OBJ_FLAG_CLICKABLE);
395 lv_obj_remove_flag(main_cont, LV_OBJ_FLAG_SCROLL_ELASTIC);
396 lv_obj_remove_style_all(main_cont); /*Make it transparent*/
397 lv_obj_set_size(main_cont, lv_pct(100), lv_pct(100));
398 lv_obj_set_scroll_snap_y(main_cont, LV_SCROLL_SNAP_CENTER); /*Snap the children to the center*/
399
400 /*Create a container for the player*/
401 lv_obj_t * player = lv_obj_create(main_cont);
402 lv_obj_set_y(player, - LV_DEMO_MUSIC_HANDLE_SIZE);
403 #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND
404 lv_obj_set_size(player, LV_HOR_RES, 2 * LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE * 2);
405 #else
406 lv_obj_set_size(player, LV_HOR_RES, LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE * 2);
407 #endif
408 lv_obj_remove_flag(player, LV_OBJ_FLAG_SNAPPABLE);
409
410 lv_obj_set_style_bg_color(player, lv_color_hex(0xffffff), 0);
411 lv_obj_set_style_border_width(player, 0, 0);
412 lv_obj_set_style_pad_all(player, 0, 0);
413 lv_obj_set_scroll_dir(player, LV_DIR_VER);
414
415 /* Transparent placeholders below the player container
416 * It is used only to snap it to center.*/
417 lv_obj_t * placeholder1 = lv_obj_create(main_cont);
418 lv_obj_remove_style_all(placeholder1);
419 lv_obj_remove_flag(placeholder1, LV_OBJ_FLAG_CLICKABLE);
420
421 lv_obj_t * placeholder2 = lv_obj_create(main_cont);
422 lv_obj_remove_style_all(placeholder2);
423 lv_obj_remove_flag(placeholder2, LV_OBJ_FLAG_CLICKABLE);
424
425 #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND
426 lv_obj_t * placeholder3 = lv_obj_create(main_cont);
427 lv_obj_remove_style_all(placeholder3);
428 lv_obj_remove_flag(placeholder3, LV_OBJ_FLAG_CLICKABLE);
429
430 lv_obj_set_size(placeholder1, lv_pct(100), LV_VER_RES);
431 lv_obj_set_y(placeholder1, 0);
432
433 lv_obj_set_size(placeholder2, lv_pct(100), LV_VER_RES);
434 lv_obj_set_y(placeholder2, LV_VER_RES);
435
436 lv_obj_set_size(placeholder3, lv_pct(100), LV_VER_RES - 2 * LV_DEMO_MUSIC_HANDLE_SIZE);
437 lv_obj_set_y(placeholder3, 2 * LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE);
438 #else
439 lv_obj_set_size(placeholder1, lv_pct(100), LV_VER_RES);
440 lv_obj_set_y(placeholder1, 0);
441
442 lv_obj_set_size(placeholder2, lv_pct(100), LV_VER_RES - 2 * LV_DEMO_MUSIC_HANDLE_SIZE);
443 lv_obj_set_y(placeholder2, LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE);
444 #endif
445
446 lv_obj_update_layout(main_cont);
447
448 return player;
449 }
450
create_wave_images(lv_obj_t * parent)451 static void create_wave_images(lv_obj_t * parent)
452 {
453 LV_IMAGE_DECLARE(img_lv_demo_music_wave_top);
454 LV_IMAGE_DECLARE(img_lv_demo_music_wave_bottom);
455 lv_obj_t * wave_top = lv_image_create(parent);
456 lv_image_set_src(wave_top, &img_lv_demo_music_wave_top);
457 lv_image_set_inner_align(wave_top, LV_IMAGE_ALIGN_TILE);
458 lv_obj_set_width(wave_top, LV_HOR_RES);
459 lv_obj_align(wave_top, LV_ALIGN_TOP_MID, 0, 0);
460 lv_obj_add_flag(wave_top, LV_OBJ_FLAG_IGNORE_LAYOUT);
461
462 lv_obj_t * wave_bottom = lv_image_create(parent);
463 lv_image_set_src(wave_bottom, &img_lv_demo_music_wave_bottom);
464 lv_image_set_inner_align(wave_bottom, LV_IMAGE_ALIGN_TILE);
465 lv_obj_set_width(wave_bottom, LV_HOR_RES);
466 lv_obj_align(wave_bottom, LV_ALIGN_BOTTOM_MID, 0, 0);
467 lv_obj_add_flag(wave_bottom, LV_OBJ_FLAG_IGNORE_LAYOUT);
468
469 LV_IMAGE_DECLARE(img_lv_demo_music_corner_left);
470 LV_IMAGE_DECLARE(img_lv_demo_music_corner_right);
471 lv_obj_t * wave_corner = lv_image_create(parent);
472 lv_image_set_src(wave_corner, &img_lv_demo_music_corner_left);
473 #if LV_DEMO_MUSIC_ROUND == 0
474 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_LEFT, 0, 0);
475 #else
476 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_LEFT, -LV_HOR_RES / 6, 0);
477 #endif
478 lv_obj_add_flag(wave_corner, LV_OBJ_FLAG_IGNORE_LAYOUT);
479
480 wave_corner = lv_image_create(parent);
481 lv_image_set_src(wave_corner, &img_lv_demo_music_corner_right);
482 #if LV_DEMO_MUSIC_ROUND == 0
483 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_RIGHT, 0, 0);
484 #else
485 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_RIGHT, LV_HOR_RES / 6, 0);
486 #endif
487 lv_obj_add_flag(wave_corner, LV_OBJ_FLAG_IGNORE_LAYOUT);
488 }
489
create_title_box(lv_obj_t * parent)490 static lv_obj_t * create_title_box(lv_obj_t * parent)
491 {
492
493 /*Create the titles*/
494 lv_obj_t * cont = lv_obj_create(parent);
495 lv_obj_remove_style_all(cont);
496 lv_obj_set_height(cont, LV_SIZE_CONTENT);
497 lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
498 lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
499
500 title_label = lv_label_create(cont);
501 lv_obj_set_style_text_font(title_label, font_large, 0);
502 lv_obj_set_style_text_color(title_label, lv_color_hex(0x504d6d), 0);
503 lv_label_set_text(title_label, lv_demo_music_get_title(track_id));
504 lv_obj_set_height(title_label, lv_font_get_line_height(font_large) * 3 / 2);
505
506 artist_label = lv_label_create(cont);
507 lv_obj_set_style_text_font(artist_label, font_small, 0);
508 lv_obj_set_style_text_color(artist_label, lv_color_hex(0x504d6d), 0);
509 lv_label_set_text(artist_label, lv_demo_music_get_artist(track_id));
510
511 genre_label = lv_label_create(cont);
512 lv_obj_set_style_text_font(genre_label, font_small, 0);
513 lv_obj_set_style_text_color(genre_label, lv_color_hex(0x8a86b8), 0);
514 lv_label_set_text(genre_label, lv_demo_music_get_genre(track_id));
515
516 return cont;
517 }
518
create_icon_box(lv_obj_t * parent)519 static lv_obj_t * create_icon_box(lv_obj_t * parent)
520 {
521
522 lv_obj_t * cont = lv_obj_create(parent);
523 lv_obj_remove_style_all(cont);
524 lv_obj_set_height(cont, LV_SIZE_CONTENT);
525 lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_ROW);
526 lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
527
528 lv_obj_t * icon;
529 LV_IMAGE_DECLARE(img_lv_demo_music_icon_1);
530 LV_IMAGE_DECLARE(img_lv_demo_music_icon_2);
531 LV_IMAGE_DECLARE(img_lv_demo_music_icon_3);
532 LV_IMAGE_DECLARE(img_lv_demo_music_icon_4);
533 icon = lv_image_create(cont);
534 lv_image_set_src(icon, &img_lv_demo_music_icon_1);
535 icon = lv_image_create(cont);
536 lv_image_set_src(icon, &img_lv_demo_music_icon_2);
537 icon = lv_image_create(cont);
538 lv_image_set_src(icon, &img_lv_demo_music_icon_3);
539 icon = lv_image_create(cont);
540 lv_image_set_src(icon, &img_lv_demo_music_icon_4);
541
542 return cont;
543 }
544
create_spectrum_obj(lv_obj_t * parent)545 static lv_obj_t * create_spectrum_obj(lv_obj_t * parent)
546 {
547 /*Create the spectrum visualizer*/
548 lv_obj_t * obj = lv_obj_create(parent);
549 lv_obj_remove_style_all(obj);
550 #if LV_DEMO_MUSIC_LARGE
551 lv_obj_set_height(obj, 500);
552 #else
553 lv_obj_set_height(obj, 250);
554 #endif
555 lv_obj_remove_flag(obj, LV_OBJ_FLAG_CLICKABLE | LV_OBJ_FLAG_SCROLLABLE);
556 lv_obj_add_event_cb(obj, spectrum_draw_event_cb, LV_EVENT_ALL, NULL);
557 lv_obj_refresh_ext_draw_size(obj);
558 album_image_obj = album_image_create(obj);
559 return obj;
560 }
561
create_ctrl_box(lv_obj_t * parent)562 static lv_obj_t * create_ctrl_box(lv_obj_t * parent)
563 {
564 /*Create the control box*/
565 lv_obj_t * cont = lv_obj_create(parent);
566 lv_obj_remove_style_all(cont);
567 lv_obj_set_height(cont, LV_SIZE_CONTENT);
568 lv_obj_remove_flag(cont, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
569 #if LV_DEMO_MUSIC_LARGE
570 lv_obj_set_style_pad_bottom(cont, 17, 0);
571 #else
572 lv_obj_set_style_pad_bottom(cont, 8, 0);
573 #endif
574 static const int32_t grid_col[] = {LV_GRID_FR(2), LV_GRID_FR(3), LV_GRID_FR(5), LV_GRID_FR(5), LV_GRID_FR(5), LV_GRID_FR(3), LV_GRID_FR(2), LV_GRID_TEMPLATE_LAST};
575 static const int32_t grid_row[] = {LV_GRID_CONTENT, LV_GRID_CONTENT, LV_GRID_TEMPLATE_LAST};
576 lv_obj_set_grid_dsc_array(cont, grid_col, grid_row);
577
578 LV_IMAGE_DECLARE(img_lv_demo_music_btn_loop);
579 LV_IMAGE_DECLARE(img_lv_demo_music_btn_rnd);
580 LV_IMAGE_DECLARE(img_lv_demo_music_btn_next);
581 LV_IMAGE_DECLARE(img_lv_demo_music_btn_prev);
582 LV_IMAGE_DECLARE(img_lv_demo_music_btn_play);
583 LV_IMAGE_DECLARE(img_lv_demo_music_btn_pause);
584
585 lv_obj_t * icon;
586 icon = lv_image_create(cont);
587 lv_image_set_src(icon, &img_lv_demo_music_btn_rnd);
588 lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_START, 1, 1, LV_GRID_ALIGN_CENTER, 0, 1);
589
590 icon = lv_image_create(cont);
591 lv_image_set_src(icon, &img_lv_demo_music_btn_loop);
592 lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_END, 5, 1, LV_GRID_ALIGN_CENTER, 0, 1);
593
594 icon = lv_image_create(cont);
595 lv_image_set_src(icon, &img_lv_demo_music_btn_prev);
596 lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_CENTER, 2, 1, LV_GRID_ALIGN_CENTER, 0, 1);
597 lv_obj_add_event_cb(icon, prev_click_event_cb, LV_EVENT_CLICKED, NULL);
598 lv_obj_add_flag(icon, LV_OBJ_FLAG_CLICKABLE);
599
600 play_obj = lv_imagebutton_create(cont);
601 lv_imagebutton_set_src(play_obj, LV_IMAGEBUTTON_STATE_RELEASED, NULL, &img_lv_demo_music_btn_play, NULL);
602 lv_imagebutton_set_src(play_obj, LV_IMAGEBUTTON_STATE_CHECKED_RELEASED, NULL, &img_lv_demo_music_btn_pause, NULL);
603 lv_obj_add_flag(play_obj, LV_OBJ_FLAG_CHECKABLE);
604 lv_obj_set_grid_cell(play_obj, LV_GRID_ALIGN_CENTER, 3, 1, LV_GRID_ALIGN_CENTER, 0, 1);
605
606 lv_obj_add_event_cb(play_obj, play_event_click_cb, LV_EVENT_CLICKED, NULL);
607 lv_obj_add_flag(play_obj, LV_OBJ_FLAG_CLICKABLE);
608 lv_obj_set_width(play_obj, img_lv_demo_music_btn_play.header.w);
609
610 icon = lv_image_create(cont);
611 lv_image_set_src(icon, &img_lv_demo_music_btn_next);
612 lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_CENTER, 4, 1, LV_GRID_ALIGN_CENTER, 0, 1);
613 lv_obj_add_event_cb(icon, next_click_event_cb, LV_EVENT_CLICKED, NULL);
614 lv_obj_add_flag(icon, LV_OBJ_FLAG_CLICKABLE);
615
616 LV_IMAGE_DECLARE(img_lv_demo_music_slider_knob);
617 slider_obj = lv_slider_create(cont);
618 lv_obj_set_style_anim_duration(slider_obj, 100, 0);
619 lv_obj_add_flag(slider_obj, LV_OBJ_FLAG_CLICKABLE); /*No input from the slider*/
620 lv_obj_remove_flag(slider_obj, LV_OBJ_FLAG_SCROLL_ON_FOCUS);
621
622 #if LV_DEMO_MUSIC_LARGE == 0
623 lv_obj_set_height(slider_obj, 3);
624 #else
625 lv_obj_set_height(slider_obj, 6);
626 #endif
627 lv_obj_set_grid_cell(slider_obj, LV_GRID_ALIGN_STRETCH, 1, 4, LV_GRID_ALIGN_CENTER, 1, 1);
628
629 lv_obj_set_style_bg_image_src(slider_obj, &img_lv_demo_music_slider_knob, LV_PART_KNOB);
630 lv_obj_set_style_bg_opa(slider_obj, LV_OPA_TRANSP, LV_PART_KNOB);
631 lv_obj_set_style_pad_all(slider_obj, 20, LV_PART_KNOB);
632 lv_obj_set_style_bg_grad_dir(slider_obj, LV_GRAD_DIR_HOR, LV_PART_INDICATOR);
633 lv_obj_set_style_bg_color(slider_obj, lv_color_hex(0x569af8), LV_PART_INDICATOR);
634 lv_obj_set_style_bg_grad_color(slider_obj, lv_color_hex(0xa666f1), LV_PART_INDICATOR);
635 lv_obj_set_style_outline_width(slider_obj, 0, 0);
636 lv_obj_add_event_cb(slider_obj, del_counter_timer_cb, LV_EVENT_DELETE, NULL);
637
638 time_obj = lv_label_create(cont);
639 lv_obj_set_style_text_font(time_obj, font_small, 0);
640 lv_obj_set_style_text_color(time_obj, lv_color_hex(0x8a86b8), 0);
641 lv_label_set_text(time_obj, "0:00");
642 lv_obj_set_grid_cell(time_obj, LV_GRID_ALIGN_END, 5, 1, LV_GRID_ALIGN_CENTER, 1, 1);
643 lv_obj_add_event_cb(time_obj, del_counter_timer_cb, LV_EVENT_DELETE, NULL);
644
645 return cont;
646 }
647
create_handle(lv_obj_t * parent)648 static lv_obj_t * create_handle(lv_obj_t * parent)
649 {
650 lv_obj_t * cont = lv_obj_create(parent);
651 lv_obj_remove_style_all(cont);
652
653 lv_obj_set_size(cont, lv_pct(100), LV_SIZE_CONTENT);
654 lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN);
655 lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
656 lv_obj_set_style_pad_row(cont, 8, 0);
657
658 /*A handle to scroll to the track list*/
659 lv_obj_t * handle_label = lv_label_create(cont);
660 lv_label_set_text(handle_label, "ALL TRACKS");
661 lv_obj_set_style_text_font(handle_label, font_small, 0);
662 lv_obj_set_style_text_color(handle_label, lv_color_hex(0x8a86b8), 0);
663
664 lv_obj_t * handle_rect = lv_obj_create(cont);
665 #if LV_DEMO_MUSIC_LARGE
666 lv_obj_set_size(handle_rect, 40, 3);
667 #else
668 lv_obj_set_size(handle_rect, 20, 2);
669 #endif
670
671 lv_obj_set_style_bg_color(handle_rect, lv_color_hex(0x8a86b8), 0);
672 lv_obj_set_style_border_width(handle_rect, 0, 0);
673
674 return cont;
675 }
676
track_load(uint32_t id)677 static void track_load(uint32_t id)
678 {
679 spectrum_i = 0;
680 time_act = 0;
681 spectrum_i_pause = 0;
682 lv_slider_set_value(slider_obj, 0, LV_ANIM_OFF);
683 lv_label_set_text(time_obj, "0:00");
684
685 if(id == track_id) return;
686 bool next = false;
687 if((track_id + 1) % ACTIVE_TRACK_CNT == id) next = true;
688
689 lv_demo_music_list_button_check(track_id, false);
690
691 track_id = id;
692
693 lv_demo_music_list_button_check(id, true);
694
695 lv_label_set_text(title_label, lv_demo_music_get_title(track_id));
696 lv_label_set_text(artist_label, lv_demo_music_get_artist(track_id));
697 lv_label_set_text(genre_label, lv_demo_music_get_genre(track_id));
698
699 lv_anim_t a;
700 lv_anim_init(&a);
701 lv_anim_set_var(&a, album_image_obj);
702 lv_anim_set_values(&a, lv_obj_get_style_image_opa(album_image_obj, 0), LV_OPA_TRANSP);
703 lv_anim_set_exec_cb(&a, album_fade_anim_cb);
704 lv_anim_set_duration(&a, 500);
705 lv_anim_start(&a);
706
707 lv_anim_init(&a);
708 lv_anim_set_var(&a, album_image_obj);
709 lv_anim_set_duration(&a, 500);
710 lv_anim_set_path_cb(&a, lv_anim_path_ease_out);
711 #if LV_DEMO_MUSIC_LANDSCAPE
712 if(next) {
713 lv_anim_set_values(&a, 0, - LV_HOR_RES / 7);
714 }
715 else {
716 lv_anim_set_values(&a, 0, LV_HOR_RES / 7);
717 }
718 #else
719 if(next) {
720 lv_anim_set_values(&a, 0, - LV_HOR_RES / 2);
721 }
722 else {
723 lv_anim_set_values(&a, 0, LV_HOR_RES / 2);
724 }
725 #endif
726 lv_anim_set_exec_cb(&a, _obj_set_x_anim_cb);
727 lv_anim_set_completed_cb(&a, lv_obj_delete_anim_completed_cb);
728 lv_anim_start(&a);
729
730 lv_anim_set_path_cb(&a, lv_anim_path_linear);
731 lv_anim_set_var(&a, album_image_obj);
732 lv_anim_set_duration(&a, 500);
733 lv_anim_set_values(&a, LV_SCALE_NONE, LV_SCALE_NONE / 2);
734 lv_anim_set_exec_cb(&a, _image_set_scale_anim_cb);
735 lv_anim_set_completed_cb(&a, NULL);
736 lv_anim_start(&a);
737
738 album_image_obj = album_image_create(spectrum_obj);
739
740 lv_anim_set_path_cb(&a, lv_anim_path_overshoot);
741 lv_anim_set_var(&a, album_image_obj);
742 lv_anim_set_duration(&a, 500);
743 lv_anim_set_delay(&a, 100);
744 lv_anim_set_values(&a, LV_SCALE_NONE / 4, LV_SCALE_NONE);
745 lv_anim_set_exec_cb(&a, _image_set_scale_anim_cb);
746 lv_anim_set_completed_cb(&a, NULL);
747 lv_anim_start(&a);
748
749 lv_anim_init(&a);
750 lv_anim_set_var(&a, album_image_obj);
751 lv_anim_set_values(&a, 0, LV_OPA_COVER);
752 lv_anim_set_exec_cb(&a, album_fade_anim_cb);
753 lv_anim_set_duration(&a, 500);
754 lv_anim_set_delay(&a, 100);
755 lv_anim_start(&a);
756 }
757
get_cos(int32_t deg,int32_t a)758 int32_t get_cos(int32_t deg, int32_t a)
759 {
760 int32_t r = (lv_trigo_cos(deg) * a);
761
762 r += LV_TRIGO_SIN_MAX / 2;
763 return r >> LV_TRIGO_SHIFT;
764 }
765
get_sin(int32_t deg,int32_t a)766 int32_t get_sin(int32_t deg, int32_t a)
767 {
768 int32_t r = lv_trigo_sin(deg) * a;
769
770 return (r + LV_TRIGO_SIN_MAX / 2) >> LV_TRIGO_SHIFT;
771
772 }
773
del_counter_timer_cb(lv_event_t * e)774 static void del_counter_timer_cb(lv_event_t * e)
775 {
776 lv_event_code_t code = lv_event_get_code(e);
777 if(code == LV_EVENT_DELETE && sec_counter_timer) {
778 lv_timer_delete(sec_counter_timer);
779 sec_counter_timer = NULL;
780 }
781 }
782
spectrum_draw_event_cb(lv_event_t * e)783 static void spectrum_draw_event_cb(lv_event_t * e)
784 {
785 lv_event_code_t code = lv_event_get_code(e);
786
787 if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) {
788 #if LV_DEMO_MUSIC_LANDSCAPE
789 lv_event_set_ext_draw_size(e, LV_HOR_RES);
790 #else
791 lv_event_set_ext_draw_size(e, LV_VER_RES);
792 #endif
793 }
794 else if(code == LV_EVENT_COVER_CHECK) {
795 lv_event_set_cover_res(e, LV_COVER_RES_NOT_COVER);
796 }
797 else if(code == LV_EVENT_DRAW_MAIN_BEGIN) {
798 lv_obj_t * obj = lv_event_get_target(e);
799 lv_layer_t * layer = lv_event_get_layer(e);
800
801 lv_opa_t opa = lv_obj_get_style_opa_recursive(obj, LV_PART_MAIN);
802 if(opa < LV_OPA_MIN) return;
803
804 lv_point_t center;
805 lv_area_t obj_coords;
806 lv_obj_get_coords(obj, &obj_coords);
807 center.x = obj_coords.x1 + lv_obj_get_width(obj) / 2;
808 center.y = obj_coords.y1 + lv_obj_get_height(obj) / 2;
809
810 lv_draw_triangle_dsc_t draw_dsc;
811 lv_draw_triangle_dsc_init(&draw_dsc);
812 draw_dsc.bg_opa = LV_OPA_COVER;
813
814 uint16_t r[64];
815 uint32_t i;
816
817 for(i = 0; i < BAR_CNT; i++) {
818 r[i] = BAR_REST_RADIUS;
819 }
820
821 uint32_t s;
822 for(s = 0; s < 4; s++) {
823 uint32_t f;
824 uint32_t band_w = 0; /*Real number of bars in this band.*/
825 switch(s) {
826 case 0:
827 band_w = 20;
828 break;
829 case 1:
830 band_w = 8;
831 break;
832 case 2:
833 band_w = 4;
834 break;
835 case 3:
836 band_w = 2;
837 break;
838 }
839
840 /* Add "side bars" with cosine characteristic.*/
841 for(f = 0; f < band_w; f++) {
842 uint32_t ampl_main = spectrum[spectrum_i][s];
843 int32_t ampl_mod = get_cos(f * 360 / band_w + 180, 180) + 180;
844 int32_t t = BAR_PER_BAND_CNT * s - band_w / 2 + f;
845 if(t < 0) t = BAR_CNT + t;
846 if(t >= BAR_CNT) t = t - BAR_CNT;
847 r[t] += (ampl_main * ampl_mod) >> 9;
848 }
849 }
850
851 const int32_t amax = 20;
852 int32_t animv = spectrum_i - 0;
853 if(animv > amax) animv = amax;
854 for(i = 0; i < BAR_CNT; i++) {
855 uint32_t deg_space = 1;
856 uint32_t deg = i * DEG_STEP + 90;
857 uint32_t j = (i + bar_rot + rnd_array[bar_ofs % 10]) % BAR_CNT;
858 uint32_t k = (i + bar_rot + rnd_array[(bar_ofs + 1) % 10]) % BAR_CNT;
859
860 uint32_t v;
861 if(start_anim) {
862 v = BAR_REST_RADIUS + start_anim_values[i];
863 }
864 else {
865 v = (r[k] * animv + r[j] * (amax - animv)) / amax;
866 }
867
868 if(v < BAR_COLOR1_STOP) draw_dsc.bg_color = BAR_COLOR1;
869 else if(v > (uint32_t)BAR_COLOR3_STOP) draw_dsc.bg_color = BAR_COLOR3;
870 else if(v > BAR_COLOR2_STOP) draw_dsc.bg_color = lv_color_mix(BAR_COLOR3, BAR_COLOR2,
871 ((v - BAR_COLOR2_STOP) * 255) / (BAR_COLOR3_STOP - BAR_COLOR2_STOP));
872 else draw_dsc.bg_color = lv_color_mix(BAR_COLOR2, BAR_COLOR1,
873 ((v - BAR_COLOR1_STOP) * 255) / (BAR_COLOR2_STOP - BAR_COLOR1_STOP));
874
875 uint32_t di = deg + deg_space;
876
877 int32_t x1_out = get_cos(di, v);
878 draw_dsc.p[0].x = center.x + x1_out;
879 draw_dsc.p[0].y = center.y + get_sin(di, v);
880
881 di += DEG_STEP - deg_space * 2;
882
883 int32_t x2_out = get_cos(di, v);
884 draw_dsc.p[1].x = center.x + x2_out;
885 draw_dsc.p[1].y = center.y + get_sin(di, v);
886
887 int32_t x2_in = get_cos(di, 0);
888 draw_dsc.p[2].x = center.x + x2_in;
889 draw_dsc.p[2].y = center.y + get_sin(di, 0);
890 lv_draw_triangle(layer, &draw_dsc);
891
892 draw_dsc.p[0].x = center.x - x1_out;
893 draw_dsc.p[1].x = center.x - x2_out;
894 draw_dsc.p[2].x = center.x - x2_in;
895 lv_draw_triangle(layer, &draw_dsc);
896 }
897 }
898 else if(code == LV_EVENT_DELETE) {
899 lv_anim_delete(NULL, start_anim_cb);
900 lv_anim_delete(NULL, spectrum_anim_cb);
901 if(start_anim && stop_start_anim_timer) lv_timer_delete(stop_start_anim_timer);
902 }
903 }
904
spectrum_anim_cb(void * a,int32_t v)905 static void spectrum_anim_cb(void * a, int32_t v)
906 {
907 lv_obj_t * obj = a;
908 if(start_anim) {
909 lv_obj_invalidate(obj);
910 return;
911 }
912
913 spectrum_i = v;
914 lv_obj_invalidate(obj);
915
916 static uint32_t bass_cnt = 0;
917 static int32_t last_bass = -1000;
918 static int32_t dir = 1;
919 if(spectrum[spectrum_i][0] > 12) {
920 if(spectrum_i - last_bass > 5) {
921 bass_cnt++;
922 last_bass = spectrum_i;
923 if(bass_cnt >= 2) {
924 bass_cnt = 0;
925 bar_ofs++;
926 }
927 }
928 }
929 if(spectrum[spectrum_i][0] < 4) bar_rot += dir;
930
931 lv_image_set_scale(album_image_obj, LV_SCALE_NONE + spectrum[spectrum_i][0]);
932 }
933
start_anim_cb(void * var,int32_t v)934 static void start_anim_cb(void * var, int32_t v)
935 {
936 int32_t * av = var;
937 *av = v;
938 lv_obj_invalidate(spectrum_obj);
939 }
940
album_image_create(lv_obj_t * parent)941 static lv_obj_t * album_image_create(lv_obj_t * parent)
942 {
943 LV_IMAGE_DECLARE(img_lv_demo_music_cover_1);
944 LV_IMAGE_DECLARE(img_lv_demo_music_cover_2);
945 LV_IMAGE_DECLARE(img_lv_demo_music_cover_3);
946
947 lv_obj_t * img;
948 img = lv_image_create(parent);
949
950 switch(track_id) {
951 case 2:
952 lv_image_set_src(img, &img_lv_demo_music_cover_3);
953 spectrum = spectrum_3;
954 spectrum_len = sizeof(spectrum_3) / sizeof(spectrum_3[0]);
955 break;
956 case 1:
957 lv_image_set_src(img, &img_lv_demo_music_cover_2);
958 spectrum = spectrum_2;
959 spectrum_len = sizeof(spectrum_2) / sizeof(spectrum_2[0]);
960 break;
961 case 0:
962 lv_image_set_src(img, &img_lv_demo_music_cover_1);
963 spectrum = spectrum_1;
964 spectrum_len = sizeof(spectrum_1) / sizeof(spectrum_1[0]);
965 break;
966 }
967 lv_image_set_antialias(img, false);
968 lv_obj_align(img, LV_ALIGN_CENTER, 0, 0);
969 lv_obj_add_event_cb(img, album_gesture_event_cb, LV_EVENT_GESTURE, NULL);
970 lv_obj_remove_flag(img, LV_OBJ_FLAG_GESTURE_BUBBLE);
971 lv_obj_add_flag(img, LV_OBJ_FLAG_CLICKABLE);
972
973 return img;
974
975 }
976
album_gesture_event_cb(lv_event_t * e)977 static void album_gesture_event_cb(lv_event_t * e)
978 {
979 LV_UNUSED(e);
980 lv_dir_t dir = lv_indev_get_gesture_dir(lv_indev_active());
981 if(dir == LV_DIR_LEFT) lv_demo_music_album_next(true);
982 if(dir == LV_DIR_RIGHT) lv_demo_music_album_next(false);
983 }
984
play_event_click_cb(lv_event_t * e)985 static void play_event_click_cb(lv_event_t * e)
986 {
987 lv_obj_t * obj = lv_event_get_target(e);
988 if(lv_obj_has_state(obj, LV_STATE_CHECKED)) {
989 lv_demo_music_resume();
990 }
991 else {
992 lv_demo_music_pause();
993 }
994 }
995
prev_click_event_cb(lv_event_t * e)996 static void prev_click_event_cb(lv_event_t * e)
997 {
998 LV_UNUSED(e);
999 lv_demo_music_album_next(false);
1000 }
1001
next_click_event_cb(lv_event_t * e)1002 static void next_click_event_cb(lv_event_t * e)
1003 {
1004 lv_event_code_t code = lv_event_get_code(e);
1005 if(code == LV_EVENT_CLICKED) {
1006 lv_demo_music_album_next(true);
1007 }
1008 }
1009
timer_cb(lv_timer_t * t)1010 static void timer_cb(lv_timer_t * t)
1011 {
1012 LV_UNUSED(t);
1013 time_act++;
1014 lv_label_set_text_fmt(time_obj, "%"LV_PRIu32":%02"LV_PRIu32, time_act / 60, time_act % 60);
1015 lv_slider_set_value(slider_obj, time_act, LV_ANIM_ON);
1016 }
1017
spectrum_end_cb(lv_anim_t * a)1018 static void spectrum_end_cb(lv_anim_t * a)
1019 {
1020 LV_UNUSED(a);
1021 lv_demo_music_album_next(true);
1022 }
1023
stop_start_anim(lv_timer_t * t)1024 static void stop_start_anim(lv_timer_t * t)
1025 {
1026 LV_UNUSED(t);
1027 start_anim = false;
1028 lv_obj_refresh_ext_draw_size(spectrum_obj);
1029 }
1030
album_fade_anim_cb(void * var,int32_t v)1031 static void album_fade_anim_cb(void * var, int32_t v)
1032 {
1033 lv_obj_set_style_image_opa(var, v, 0);
1034 }
1035 #endif /*LV_USE_DEMO_MUSIC*/
1036
