/** * @file lv_demo_music_main.c * */ /********************* * INCLUDES *********************/ #include "lv_demo_music_main.h" #if LV_USE_DEMO_MUSIC #include "lv_demo_music_list.h" #include "assets/spectrum_1.h" #include "assets/spectrum_2.h" #include "assets/spectrum_3.h" /********************* * DEFINES *********************/ #define ACTIVE_TRACK_CNT 3 #define INTRO_TIME 2000 #define BAR_COLOR1 lv_color_hex(0xe9dbfc) #define BAR_COLOR2 lv_color_hex(0x6f8af6) #define BAR_COLOR3 lv_color_hex(0xffffff) #if LV_DEMO_MUSIC_LARGE #define BAR_COLOR1_STOP 160 #define BAR_COLOR2_STOP 200 #else #define BAR_COLOR1_STOP 80 #define BAR_COLOR2_STOP 100 #endif #define BAR_COLOR3_STOP (2 * LV_HOR_RES / 3) #define BAR_CNT 20 #define DEG_STEP (180/BAR_CNT) #define BAND_CNT 4 #define BAR_PER_BAND_CNT (BAR_CNT / BAND_CNT) /********************** * TYPEDEFS **********************/ /********************** * STATIC PROTOTYPES **********************/ static lv_obj_t * create_cont(lv_obj_t * parent); static void create_wave_images(lv_obj_t * parent); static lv_obj_t * create_title_box(lv_obj_t * parent); static lv_obj_t * create_icon_box(lv_obj_t * parent); static lv_obj_t * create_spectrum_obj(lv_obj_t * parent); static lv_obj_t * create_ctrl_box(lv_obj_t * parent); static lv_obj_t * create_handle(lv_obj_t * parent); static void spectrum_anim_cb(void * a, int32_t v); static void start_anim_cb(void * a, int32_t v); static void spectrum_draw_event_cb(lv_event_t * e); static lv_obj_t * album_img_create(lv_obj_t * parent); static void album_gesture_event_cb(lv_event_t * e); static void play_event_click_cb(lv_event_t * e); static void prev_click_event_cb(lv_event_t * e); static void next_click_event_cb(lv_event_t * e); static void timer_cb(lv_timer_t * t); static void track_load(uint32_t id); static void stop_start_anim_timer_cb(lv_timer_t * t); static void spectrum_end_cb(lv_anim_t * a); static void album_fade_anim_cb(void * var, int32_t v); static int32_t get_cos(int32_t deg, int32_t a); static int32_t get_sin(int32_t deg, int32_t a); /********************** * STATIC VARIABLES **********************/ static lv_obj_t * main_cont; static lv_obj_t * spectrum_obj; static lv_obj_t * title_label; static lv_obj_t * artist_label; static lv_obj_t * genre_label; static lv_obj_t * time_obj; static lv_obj_t * album_img_obj; static lv_obj_t * slider_obj; static uint32_t spectrum_i = 0; static uint32_t spectrum_i_pause = 0; static uint32_t bar_ofs = 0; static uint32_t spectrum_lane_ofs_start = 0; static uint32_t bar_rot = 0; static uint32_t time_act; static lv_timer_t * sec_counter_timer; static lv_timer_t * stop_start_anim_timer; static const lv_font_t * font_small; static const lv_font_t * font_large; static uint32_t track_id; static bool playing; static bool start_anim; static lv_coord_t start_anim_values[40]; static lv_obj_t * play_obj; static const uint16_t (* spectrum)[4]; static uint32_t spectrum_len; 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}; /********************** * MACROS **********************/ /********************** * GLOBAL FUNCTIONS **********************/ /* * Callback adapter function to convert parameter types to avoid compile-time * warning. */ static void _img_set_zoom_anim_cb(void * obj, int32_t zoom) { lv_img_set_zoom((lv_obj_t *)obj, (uint16_t)zoom); } /* * Callback adapter function to convert parameter types to avoid compile-time * warning. */ static void _obj_set_x_anim_cb(void * obj, int32_t x) { lv_obj_set_x((lv_obj_t *)obj, (lv_coord_t)x); } lv_obj_t * _lv_demo_music_main_create(lv_obj_t * parent) { #if LV_DEMO_MUSIC_LARGE font_small = &lv_font_montserrat_22; font_large = &lv_font_montserrat_32; #else font_small = &lv_font_montserrat_12; font_large = &lv_font_montserrat_16; #endif /*Create the content of the music player*/ lv_obj_t * cont = create_cont(parent); create_wave_images(cont); lv_obj_t * title_box = create_title_box(cont); lv_obj_t * icon_box = create_icon_box(cont); lv_obj_t * ctrl_box = create_ctrl_box(cont); spectrum_obj = create_spectrum_obj(cont); lv_obj_t * handle_box = create_handle(cont); #if LV_DEMO_MUSIC_ROUND lv_obj_set_style_pad_hor(cont, LV_HOR_RES / 6, 0); #endif /*Arrange the content into a grid*/ #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND static const lv_coord_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST}; static lv_coord_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ 0, /*Spectrum obj, set later*/ LV_GRID_CONTENT, /*Title box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Icon box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Control box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Handle box*/ LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ LV_GRID_TEMPLATE_LAST }; grid_rows[1] = LV_VER_RES; lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows); lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0); lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 1, 1); lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_ALIGN_CENTER, 2, 1); lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_ALIGN_CENTER, 4, 1); lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_ALIGN_CENTER, 6, 1); lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_ALIGN_CENTER, 8, 1); #elif LV_DEMO_MUSIC_LANDSCAPE == 0 static const lv_coord_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST}; static const lv_coord_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ LV_GRID_FR(1), /*Spacer*/ LV_GRID_CONTENT, /*Title box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Icon box*/ LV_GRID_FR(3), /*Spacer*/ # if LV_DEMO_MUSIC_LARGE == 0 250, /*Spectrum obj*/ # else 480, /*Spectrum obj*/ # endif LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Control box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Handle box*/ LV_GRID_FR(1), /*Spacer*/ LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ LV_GRID_TEMPLATE_LAST }; lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows); lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0); lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 2, 1); lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 4, 1); lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 6, 1); lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 8, 1); lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 10, 1); #else /*Arrange the content into a grid*/ static const lv_coord_t grid_cols[] = {LV_GRID_FR(1), LV_GRID_FR(1), LV_GRID_TEMPLATE_LAST}; static const lv_coord_t grid_rows[] = {LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ LV_GRID_FR(1), /*Spacer*/ LV_GRID_CONTENT, /*Title box*/ LV_GRID_FR(1), /*Spacer*/ LV_GRID_CONTENT, /*Icon box*/ LV_GRID_FR(3), /*Spacer*/ LV_GRID_CONTENT, /*Control box*/ LV_GRID_FR(1), /*Spacer*/ LV_GRID_CONTENT, /*Handle box*/ LV_GRID_FR(1), /*Spacer*/ LV_DEMO_MUSIC_HANDLE_SIZE, /*Spacing*/ LV_GRID_TEMPLATE_LAST }; lv_obj_set_grid_dsc_array(cont, grid_cols, grid_rows); lv_obj_set_style_grid_row_align(cont, LV_GRID_ALIGN_SPACE_BETWEEN, 0); lv_obj_set_grid_cell(title_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 2, 1); lv_obj_set_grid_cell(icon_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 4, 1); lv_obj_set_grid_cell(ctrl_box, LV_GRID_ALIGN_STRETCH, 0, 1, LV_GRID_ALIGN_CENTER, 6, 1); lv_obj_set_grid_cell(handle_box, LV_GRID_ALIGN_STRETCH, 0, 2, LV_GRID_ALIGN_CENTER, 8, 1); lv_obj_set_grid_cell(spectrum_obj, LV_GRID_ALIGN_STRETCH, 1, 1, LV_GRID_ALIGN_CENTER, 1, 9); #endif sec_counter_timer = lv_timer_create(timer_cb, 1000, NULL); lv_timer_pause(sec_counter_timer); /*Animate in the content after the intro time*/ lv_anim_t a; start_anim = true; stop_start_anim_timer = lv_timer_create(stop_start_anim_timer_cb, INTRO_TIME + 6000, NULL); lv_timer_set_repeat_count(stop_start_anim_timer, 1); lv_anim_init(&a); lv_anim_set_path_cb(&a, lv_anim_path_bounce); uint32_t i; lv_anim_set_exec_cb(&a, start_anim_cb); for(i = 0; i < BAR_CNT; i++) { lv_anim_set_values(&a, LV_HOR_RES, 5); lv_anim_set_delay(&a, INTRO_TIME - 200 + rnd_array[i] % 200); lv_anim_set_time(&a, 2500 + rnd_array[i] % 500); lv_anim_set_var(&a, &start_anim_values[i]); lv_anim_start(&a); } lv_obj_fade_in(title_box, 1000, INTRO_TIME + 1000); lv_obj_fade_in(icon_box, 1000, INTRO_TIME + 1000); lv_obj_fade_in(ctrl_box, 1000, INTRO_TIME + 1000); lv_obj_fade_in(handle_box, 1000, INTRO_TIME + 1000); lv_obj_fade_in(album_img_obj, 800, INTRO_TIME + 1000); lv_obj_fade_in(spectrum_obj, 0, INTRO_TIME); lv_anim_set_path_cb(&a, lv_anim_path_ease_out); lv_anim_set_var(&a, album_img_obj); lv_anim_set_time(&a, 1000); lv_anim_set_delay(&a, INTRO_TIME + 1000); lv_anim_set_values(&a, 1, LV_IMG_ZOOM_NONE); lv_anim_set_exec_cb(&a, _img_set_zoom_anim_cb); lv_anim_set_ready_cb(&a, NULL); lv_anim_start(&a); /* Create an intro from a logo + label */ LV_IMG_DECLARE(img_lv_demo_music_logo); lv_obj_t * logo = lv_img_create(lv_scr_act()); lv_img_set_src(logo, &img_lv_demo_music_logo); lv_obj_move_foreground(logo); lv_obj_t * title = lv_label_create(lv_scr_act()); lv_label_set_text(title, "LVGL Demo\nMusic player"); lv_obj_set_style_text_align(title, LV_TEXT_ALIGN_CENTER, 0); lv_obj_set_style_text_font(title, font_large, 0); lv_obj_set_style_text_line_space(title, 8, 0); lv_obj_fade_out(title, 500, INTRO_TIME); lv_obj_align_to(logo, spectrum_obj, LV_ALIGN_CENTER, 0, 0); lv_obj_align_to(title, logo, LV_ALIGN_OUT_LEFT_MID, -20, 0); lv_anim_set_path_cb(&a, lv_anim_path_ease_in); lv_anim_set_var(&a, logo); lv_anim_set_time(&a, 400); lv_anim_set_delay(&a, INTRO_TIME + 800); lv_anim_set_values(&a, LV_IMG_ZOOM_NONE, 10); lv_anim_set_ready_cb(&a, lv_obj_del_anim_ready_cb); lv_anim_start(&a); lv_obj_update_layout(main_cont); return main_cont; } void _lv_demo_music_main_close(void) { if(stop_start_anim_timer) lv_timer_del(stop_start_anim_timer); lv_timer_del(sec_counter_timer); } void _lv_demo_music_album_next(bool next) { uint32_t id = track_id; if(next) { id++; if(id >= ACTIVE_TRACK_CNT) id = 0; } else { if(id == 0) { id = ACTIVE_TRACK_CNT - 1; } else { id--; } } if(playing) { _lv_demo_music_play(id); } else { track_load(id); } } void _lv_demo_music_play(uint32_t id) { track_load(id); _lv_demo_music_resume(); } void _lv_demo_music_resume(void) { playing = true; spectrum_i = spectrum_i_pause; lv_anim_t a; lv_anim_init(&a); lv_anim_set_values(&a, spectrum_i, spectrum_len - 1); lv_anim_set_exec_cb(&a, spectrum_anim_cb); lv_anim_set_var(&a, spectrum_obj); lv_anim_set_time(&a, ((spectrum_len - spectrum_i) * 1000) / 30); lv_anim_set_playback_time(&a, 0); lv_anim_set_ready_cb(&a, spectrum_end_cb); lv_anim_start(&a); lv_timer_resume(sec_counter_timer); lv_slider_set_range(slider_obj, 0, _lv_demo_music_get_track_length(track_id)); lv_obj_add_state(play_obj, LV_STATE_CHECKED); } void _lv_demo_music_pause(void) { playing = false; spectrum_i_pause = spectrum_i; spectrum_i = 0; lv_anim_del(spectrum_obj, spectrum_anim_cb); lv_obj_invalidate(spectrum_obj); lv_img_set_zoom(album_img_obj, LV_IMG_ZOOM_NONE); lv_timer_pause(sec_counter_timer); lv_obj_clear_state(play_obj, LV_STATE_CHECKED); } /********************** * STATIC FUNCTIONS **********************/ static lv_obj_t * create_cont(lv_obj_t * parent) { /*A transparent container in which the player section will be scrolled*/ main_cont = lv_obj_create(parent); lv_obj_clear_flag(main_cont, LV_OBJ_FLAG_CLICKABLE); lv_obj_clear_flag(main_cont, LV_OBJ_FLAG_SCROLL_ELASTIC); lv_obj_remove_style_all(main_cont); /*Make it transparent*/ lv_obj_set_size(main_cont, lv_pct(100), lv_pct(100)); lv_obj_set_scroll_snap_y(main_cont, LV_SCROLL_SNAP_CENTER); /*Snap the children to the center*/ /*Create a container for the player*/ lv_obj_t * player = lv_obj_create(main_cont); lv_obj_set_y(player, - LV_DEMO_MUSIC_HANDLE_SIZE); #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND lv_obj_set_size(player, LV_HOR_RES, 2 * LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE * 2); #else lv_obj_set_size(player, LV_HOR_RES, LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE * 2); #endif lv_obj_clear_flag(player, LV_OBJ_FLAG_SNAPABLE); lv_obj_set_style_bg_color(player, lv_color_hex(0xffffff), 0); lv_obj_set_style_border_width(player, 0, 0); lv_obj_set_style_pad_all(player, 0, 0); lv_obj_set_scroll_dir(player, LV_DIR_VER); /* Transparent placeholders below the player container * It is used only to snap it to center.*/ lv_obj_t * placeholder1 = lv_obj_create(main_cont); lv_obj_remove_style_all(placeholder1); lv_obj_clear_flag(placeholder1, LV_OBJ_FLAG_CLICKABLE); // lv_obj_set_style_bg_color(placeholder1, lv_color_hex(0xff0000), 0); // lv_obj_set_style_bg_opa(placeholder1, LV_OPA_50, 0); lv_obj_t * placeholder2 = lv_obj_create(main_cont); lv_obj_remove_style_all(placeholder2); lv_obj_clear_flag(placeholder2, LV_OBJ_FLAG_CLICKABLE); // lv_obj_set_style_bg_color(placeholder2, lv_color_hex(0x00ff00), 0); // lv_obj_set_style_bg_opa(placeholder2, LV_OPA_50, 0); #if LV_DEMO_MUSIC_SQUARE || LV_DEMO_MUSIC_ROUND lv_obj_t * placeholder3 = lv_obj_create(main_cont); lv_obj_remove_style_all(placeholder3); lv_obj_clear_flag(placeholder3, LV_OBJ_FLAG_CLICKABLE); // lv_obj_set_style_bg_color(placeholder3, lv_color_hex(0x0000ff), 0); // lv_obj_set_style_bg_opa(placeholder3, LV_OPA_20, 0); lv_obj_set_size(placeholder1, lv_pct(100), LV_VER_RES); lv_obj_set_y(placeholder1, 0); lv_obj_set_size(placeholder2, lv_pct(100), LV_VER_RES); lv_obj_set_y(placeholder2, LV_VER_RES); lv_obj_set_size(placeholder3, lv_pct(100), LV_VER_RES - 2 * LV_DEMO_MUSIC_HANDLE_SIZE); lv_obj_set_y(placeholder3, 2 * LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE); #else lv_obj_set_size(placeholder1, lv_pct(100), LV_VER_RES); lv_obj_set_y(placeholder1, 0); lv_obj_set_size(placeholder2, lv_pct(100), LV_VER_RES - 2 * LV_DEMO_MUSIC_HANDLE_SIZE); lv_obj_set_y(placeholder2, LV_VER_RES + LV_DEMO_MUSIC_HANDLE_SIZE); #endif lv_obj_update_layout(main_cont); return player; } static void create_wave_images(lv_obj_t * parent) { LV_IMG_DECLARE(img_lv_demo_music_wave_top); LV_IMG_DECLARE(img_lv_demo_music_wave_bottom); lv_obj_t * wave_top = lv_img_create(parent); lv_img_set_src(wave_top, &img_lv_demo_music_wave_top); lv_obj_set_width(wave_top, LV_HOR_RES); lv_obj_align(wave_top, LV_ALIGN_TOP_MID, 0, 0); lv_obj_add_flag(wave_top, LV_OBJ_FLAG_IGNORE_LAYOUT); lv_obj_t * wave_bottom = lv_img_create(parent); lv_img_set_src(wave_bottom, &img_lv_demo_music_wave_bottom); lv_obj_set_width(wave_bottom, LV_HOR_RES); lv_obj_align(wave_bottom, LV_ALIGN_BOTTOM_MID, 0, 0); lv_obj_add_flag(wave_bottom, LV_OBJ_FLAG_IGNORE_LAYOUT); LV_IMG_DECLARE(img_lv_demo_music_corner_left); LV_IMG_DECLARE(img_lv_demo_music_corner_right); lv_obj_t * wave_corner = lv_img_create(parent); lv_img_set_src(wave_corner, &img_lv_demo_music_corner_left); #if LV_DEMO_MUSIC_ROUND == 0 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_LEFT, 0, 0); #else lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_LEFT, -LV_HOR_RES / 6, 0); #endif lv_obj_add_flag(wave_corner, LV_OBJ_FLAG_IGNORE_LAYOUT); wave_corner = lv_img_create(parent); lv_img_set_src(wave_corner, &img_lv_demo_music_corner_right); #if LV_DEMO_MUSIC_ROUND == 0 lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_RIGHT, 0, 0); #else lv_obj_align(wave_corner, LV_ALIGN_BOTTOM_RIGHT, LV_HOR_RES / 6, 0); #endif lv_obj_add_flag(wave_corner, LV_OBJ_FLAG_IGNORE_LAYOUT); } static lv_obj_t * create_title_box(lv_obj_t * parent) { /*Create the titles*/ lv_obj_t * cont = lv_obj_create(parent); lv_obj_remove_style_all(cont); lv_obj_set_height(cont, LV_SIZE_CONTENT); lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN); lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_START, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER); title_label = lv_label_create(cont); lv_obj_set_style_text_font(title_label, font_large, 0); lv_obj_set_style_text_color(title_label, lv_color_hex(0x504d6d), 0); lv_label_set_text(title_label, _lv_demo_music_get_title(track_id)); lv_obj_set_height(title_label, lv_font_get_line_height(font_large) * 3 / 2); artist_label = lv_label_create(cont); lv_obj_set_style_text_font(artist_label, font_small, 0); lv_obj_set_style_text_color(artist_label, lv_color_hex(0x504d6d), 0); lv_label_set_text(artist_label, _lv_demo_music_get_artist(track_id)); genre_label = lv_label_create(cont); lv_obj_set_style_text_font(genre_label, font_small, 0); lv_obj_set_style_text_color(genre_label, lv_color_hex(0x8a86b8), 0); lv_label_set_text(genre_label, _lv_demo_music_get_genre(track_id)); return cont; } static lv_obj_t * create_icon_box(lv_obj_t * parent) { lv_obj_t * cont = lv_obj_create(parent); lv_obj_remove_style_all(cont); lv_obj_set_height(cont, LV_SIZE_CONTENT); lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_ROW); lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_SPACE_EVENLY, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER); lv_obj_t * icon; LV_IMG_DECLARE(img_lv_demo_music_icon_1); LV_IMG_DECLARE(img_lv_demo_music_icon_2); LV_IMG_DECLARE(img_lv_demo_music_icon_3); LV_IMG_DECLARE(img_lv_demo_music_icon_4); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_icon_1); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_icon_2); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_icon_3); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_icon_4); return cont; } static lv_obj_t * create_spectrum_obj(lv_obj_t * parent) { /*Create the spectrum visualizer*/ lv_obj_t * obj = lv_obj_create(parent); lv_obj_remove_style_all(obj); #if LV_DEMO_MUSIC_LARGE lv_obj_set_height(obj, 500); #else lv_obj_set_height(obj, 250); #endif lv_obj_clear_flag(obj, LV_OBJ_FLAG_CLICKABLE | LV_OBJ_FLAG_SCROLLABLE); lv_obj_add_event_cb(obj, spectrum_draw_event_cb, LV_EVENT_ALL, NULL); lv_obj_refresh_ext_draw_size(obj); album_img_obj = album_img_create(obj); return obj; } static lv_obj_t * create_ctrl_box(lv_obj_t * parent) { /*Create the control box*/ lv_obj_t * cont = lv_obj_create(parent); lv_obj_remove_style_all(cont); lv_obj_set_height(cont, LV_SIZE_CONTENT); #if LV_DEMO_MUSIC_LARGE lv_obj_set_style_pad_bottom(cont, 17, 0); #else lv_obj_set_style_pad_bottom(cont, 8, 0); #endif static const lv_coord_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}; static const lv_coord_t grid_row[] = {LV_GRID_CONTENT, LV_GRID_CONTENT, LV_GRID_TEMPLATE_LAST}; lv_obj_set_grid_dsc_array(cont, grid_col, grid_row); LV_IMG_DECLARE(img_lv_demo_music_btn_loop); LV_IMG_DECLARE(img_lv_demo_music_btn_rnd); LV_IMG_DECLARE(img_lv_demo_music_btn_next); LV_IMG_DECLARE(img_lv_demo_music_btn_prev); LV_IMG_DECLARE(img_lv_demo_music_btn_play); LV_IMG_DECLARE(img_lv_demo_music_btn_pause); lv_obj_t * icon; icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_btn_rnd); lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_START, 1, 1, LV_GRID_ALIGN_CENTER, 0, 1); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_btn_loop); lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_END, 5, 1, LV_GRID_ALIGN_CENTER, 0, 1); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_btn_prev); lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_CENTER, 2, 1, LV_GRID_ALIGN_CENTER, 0, 1); lv_obj_add_event_cb(icon, prev_click_event_cb, LV_EVENT_CLICKED, NULL); play_obj = lv_imgbtn_create(cont); lv_imgbtn_set_src(play_obj, LV_IMGBTN_STATE_RELEASED, NULL, &img_lv_demo_music_btn_play, NULL); lv_imgbtn_set_src(play_obj, LV_IMGBTN_STATE_CHECKED_RELEASED, NULL, &img_lv_demo_music_btn_pause, NULL); lv_obj_add_flag(play_obj, LV_OBJ_FLAG_CHECKABLE); lv_obj_set_grid_cell(play_obj, LV_GRID_ALIGN_CENTER, 3, 1, LV_GRID_ALIGN_CENTER, 0, 1); lv_obj_add_event_cb(play_obj, play_event_click_cb, LV_EVENT_CLICKED, NULL); lv_obj_add_flag(play_obj, LV_OBJ_FLAG_CLICKABLE); lv_obj_set_width(play_obj, img_lv_demo_music_btn_play.header.w); icon = lv_img_create(cont); lv_img_set_src(icon, &img_lv_demo_music_btn_next); lv_obj_set_grid_cell(icon, LV_GRID_ALIGN_CENTER, 4, 1, LV_GRID_ALIGN_CENTER, 0, 1); lv_obj_add_event_cb(icon, next_click_event_cb, LV_EVENT_CLICKED, NULL); lv_obj_add_flag(icon, LV_OBJ_FLAG_CLICKABLE); LV_IMG_DECLARE(img_lv_demo_music_slider_knob); slider_obj = lv_slider_create(cont); lv_obj_set_style_anim_time(slider_obj, 100, 0); lv_obj_add_flag(slider_obj, LV_OBJ_FLAG_CLICKABLE); /*No input from the slider*/ #if LV_DEMO_MUSIC_LARGE == 0 lv_obj_set_height(slider_obj, 3); #else lv_obj_set_height(slider_obj, 6); #endif lv_obj_set_grid_cell(slider_obj, LV_GRID_ALIGN_STRETCH, 1, 4, LV_GRID_ALIGN_CENTER, 1, 1); lv_obj_set_style_bg_img_src(slider_obj, &img_lv_demo_music_slider_knob, LV_PART_KNOB); lv_obj_set_style_bg_opa(slider_obj, LV_OPA_TRANSP, LV_PART_KNOB); lv_obj_set_style_pad_all(slider_obj, 20, LV_PART_KNOB); lv_obj_set_style_bg_grad_dir(slider_obj, LV_GRAD_DIR_HOR, LV_PART_INDICATOR); lv_obj_set_style_bg_color(slider_obj, lv_color_hex(0x569af8), LV_PART_INDICATOR); lv_obj_set_style_bg_grad_color(slider_obj, lv_color_hex(0xa666f1), LV_PART_INDICATOR); lv_obj_set_style_outline_width(slider_obj, 0, 0); time_obj = lv_label_create(cont); lv_obj_set_style_text_font(time_obj, font_small, 0); lv_obj_set_style_text_color(time_obj, lv_color_hex(0x8a86b8), 0); lv_label_set_text(time_obj, "0:00"); lv_obj_set_grid_cell(time_obj, LV_GRID_ALIGN_END, 5, 1, LV_GRID_ALIGN_CENTER, 1, 1); return cont; } static lv_obj_t * create_handle(lv_obj_t * parent) { lv_obj_t * cont = lv_obj_create(parent); lv_obj_remove_style_all(cont); lv_obj_set_size(cont, lv_pct(100), LV_SIZE_CONTENT); lv_obj_set_flex_flow(cont, LV_FLEX_FLOW_COLUMN); lv_obj_set_flex_align(cont, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER); lv_obj_set_style_pad_row(cont, 8, 0); /*A handle to scroll to the track list*/ lv_obj_t * handle_label = lv_label_create(cont); lv_label_set_text(handle_label, "ALL TRACKS"); lv_obj_set_style_text_font(handle_label, font_small, 0); lv_obj_set_style_text_color(handle_label, lv_color_hex(0x8a86b8), 0); lv_obj_t * handle_rect = lv_obj_create(cont); #if LV_DEMO_MUSIC_LARGE lv_obj_set_size(handle_rect, 40, 3); #else lv_obj_set_size(handle_rect, 20, 2); #endif lv_obj_set_style_bg_color(handle_rect, lv_color_hex(0x8a86b8), 0); lv_obj_set_style_border_width(handle_rect, 0, 0); return cont; } static void track_load(uint32_t id) { spectrum_i = 0; time_act = 0; spectrum_i_pause = 0; lv_slider_set_value(slider_obj, 0, LV_ANIM_OFF); lv_label_set_text(time_obj, "0:00"); if(id == track_id) return; bool next = false; if((track_id + 1) % ACTIVE_TRACK_CNT == id) next = true; _lv_demo_music_list_btn_check(track_id, false); track_id = id; _lv_demo_music_list_btn_check(id, true); lv_label_set_text(title_label, _lv_demo_music_get_title(track_id)); lv_label_set_text(artist_label, _lv_demo_music_get_artist(track_id)); lv_label_set_text(genre_label, _lv_demo_music_get_genre(track_id)); lv_anim_t a; lv_anim_init(&a); lv_anim_set_var(&a, album_img_obj); lv_anim_set_values(&a, lv_obj_get_style_img_opa(album_img_obj, 0), LV_OPA_TRANSP); lv_anim_set_exec_cb(&a, album_fade_anim_cb); lv_anim_set_time(&a, 500); lv_anim_start(&a); lv_anim_init(&a); lv_anim_set_var(&a, album_img_obj); lv_anim_set_time(&a, 500); lv_anim_set_path_cb(&a, lv_anim_path_ease_out); #if LV_DEMO_MUSIC_LANDSCAPE if(next) { lv_anim_set_values(&a, 0, - LV_HOR_RES / 7); } else { lv_anim_set_values(&a, 0, LV_HOR_RES / 7); } #else if(next) { lv_anim_set_values(&a, 0, - LV_HOR_RES / 2); } else { lv_anim_set_values(&a, 0, LV_HOR_RES / 2); } #endif lv_anim_set_exec_cb(&a, _obj_set_x_anim_cb); lv_anim_set_ready_cb(&a, lv_obj_del_anim_ready_cb); lv_anim_start(&a); lv_anim_set_path_cb(&a, lv_anim_path_linear); lv_anim_set_var(&a, album_img_obj); lv_anim_set_time(&a, 500); lv_anim_set_values(&a, LV_IMG_ZOOM_NONE, LV_IMG_ZOOM_NONE / 2); lv_anim_set_exec_cb(&a, _img_set_zoom_anim_cb); lv_anim_set_ready_cb(&a, NULL); lv_anim_start(&a); album_img_obj = album_img_create(spectrum_obj); lv_anim_set_path_cb(&a, lv_anim_path_overshoot); lv_anim_set_var(&a, album_img_obj); lv_anim_set_time(&a, 500); lv_anim_set_delay(&a, 100); lv_anim_set_values(&a, LV_IMG_ZOOM_NONE / 4, LV_IMG_ZOOM_NONE); lv_anim_set_exec_cb(&a, _img_set_zoom_anim_cb); lv_anim_set_ready_cb(&a, NULL); lv_anim_start(&a); lv_anim_init(&a); lv_anim_set_var(&a, album_img_obj); lv_anim_set_values(&a, 0, LV_OPA_COVER); lv_anim_set_exec_cb(&a, album_fade_anim_cb); lv_anim_set_time(&a, 500); lv_anim_set_delay(&a, 100); lv_anim_start(&a); } int32_t get_cos(int32_t deg, int32_t a) { int32_t r = (lv_trigo_cos(deg) * a); r += LV_TRIGO_SIN_MAX / 2; return r >> LV_TRIGO_SHIFT; } int32_t get_sin(int32_t deg, int32_t a) { int32_t r = lv_trigo_sin(deg) * a; r += LV_TRIGO_SIN_MAX / 2; return r >> LV_TRIGO_SHIFT; } static void spectrum_draw_event_cb(lv_event_t * e) { lv_event_code_t code = lv_event_get_code(e); if(code == LV_EVENT_REFR_EXT_DRAW_SIZE) { #if LV_DEMO_MUSIC_LANDSCAPE lv_event_set_ext_draw_size(e, LV_HOR_RES); #else lv_event_set_ext_draw_size(e, LV_VER_RES); #endif } else if(code == LV_EVENT_COVER_CHECK) { lv_event_set_cover_res(e, LV_COVER_RES_NOT_COVER); } else if(code == LV_EVENT_DRAW_POST) { lv_obj_t * obj = lv_event_get_target(e); lv_draw_ctx_t * draw_ctx = lv_event_get_draw_ctx(e); lv_opa_t opa = lv_obj_get_style_opa(obj, LV_PART_MAIN); if(opa < LV_OPA_MIN) return; lv_point_t poly[4]; lv_point_t center; center.x = obj->coords.x1 + lv_obj_get_width(obj) / 2; center.y = obj->coords.y1 + lv_obj_get_height(obj) / 2; lv_draw_rect_dsc_t draw_dsc; lv_draw_rect_dsc_init(&draw_dsc); draw_dsc.bg_opa = LV_OPA_COVER; uint16_t r[64]; uint32_t i; lv_coord_t min_a = 5; #if LV_DEMO_MUSIC_LARGE == 0 lv_coord_t r_in = 77; #else lv_coord_t r_in = 160; #endif r_in = (r_in * lv_img_get_zoom(album_img_obj)) >> 8; for(i = 0; i < BAR_CNT; i++) r[i] = r_in + min_a; uint32_t s; for(s = 0; s < 4; s++) { uint32_t f; uint32_t band_w = 0; /*Real number of bars in this band.*/ switch(s) { case 0: band_w = 20; break; case 1: band_w = 8; break; case 2: band_w = 4; break; case 3: band_w = 2; break; } /* Add "side bars" with cosine characteristic.*/ for(f = 0; f < band_w; f++) { uint32_t ampl_main = spectrum[spectrum_i][s]; int32_t ampl_mod = get_cos(f * 360 / band_w + 180, 180) + 180; int32_t t = BAR_PER_BAND_CNT * s - band_w / 2 + f; if(t < 0) t = BAR_CNT + t; if(t >= BAR_CNT) t = t - BAR_CNT; r[t] += (ampl_main * ampl_mod) >> 9; } } uint32_t amax = 20; int32_t animv = spectrum_i - spectrum_lane_ofs_start; if(animv > amax) animv = amax; for(i = 0; i < BAR_CNT; i++) { uint32_t deg_space = 1; uint32_t deg = i * DEG_STEP + 90; uint32_t j = (i + bar_rot + rnd_array[bar_ofs % 10]) % BAR_CNT; uint32_t k = (i + bar_rot + rnd_array[(bar_ofs + 1) % 10]) % BAR_CNT; uint32_t v = (r[k] * animv + r[j] * (amax - animv)) / amax; if(start_anim) { v = r_in + start_anim_values[i]; deg_space = v >> 7; if(deg_space < 1) deg_space = 1; } if(v < BAR_COLOR1_STOP) draw_dsc.bg_color = BAR_COLOR1; else if(v > BAR_COLOR3_STOP) draw_dsc.bg_color = BAR_COLOR3; else if(v > BAR_COLOR2_STOP) draw_dsc.bg_color = lv_color_mix(BAR_COLOR3, BAR_COLOR2, ((v - BAR_COLOR2_STOP) * 255) / (BAR_COLOR3_STOP - BAR_COLOR2_STOP)); else draw_dsc.bg_color = lv_color_mix(BAR_COLOR2, BAR_COLOR1, ((v - BAR_COLOR1_STOP) * 255) / (BAR_COLOR2_STOP - BAR_COLOR1_STOP)); uint32_t di = deg + deg_space; int32_t x1_out = get_cos(di, v); poly[0].x = center.x + x1_out; poly[0].y = center.y + get_sin(di, v); int32_t x1_in = get_cos(di, r_in); poly[1].x = center.x + x1_in; poly[1].y = center.y + get_sin(di, r_in); di += DEG_STEP - deg_space * 2; int32_t x2_in = get_cos(di, r_in); poly[2].x = center.x + x2_in; poly[2].y = center.y + get_sin(di, r_in); int32_t x2_out = get_cos(di, v); poly[3].x = center.x + x2_out; poly[3].y = center.y + get_sin(di, v); lv_draw_polygon(draw_ctx, &draw_dsc, poly, 4); poly[0].x = center.x - x1_out; poly[1].x = center.x - x1_in; poly[2].x = center.x - x2_in; poly[3].x = center.x - x2_out; lv_draw_polygon(draw_ctx, &draw_dsc, poly, 4); } } } static void spectrum_anim_cb(void * a, int32_t v) { lv_obj_t * obj = a; if(start_anim) { lv_obj_invalidate(obj); return; } spectrum_i = v; lv_obj_invalidate(obj); static uint32_t bass_cnt = 0; static int32_t last_bass = -1000; static int32_t dir = 1; if(spectrum[spectrum_i][0] > 12) { if(spectrum_i - last_bass > 5) { bass_cnt++; last_bass = spectrum_i; if(bass_cnt >= 2) { bass_cnt = 0; spectrum_lane_ofs_start = spectrum_i; bar_ofs++; } } } if(spectrum[spectrum_i][0] < 4) bar_rot += dir; lv_img_set_zoom(album_img_obj, LV_IMG_ZOOM_NONE + spectrum[spectrum_i][0]); } static void start_anim_cb(void * a, int32_t v) { lv_coord_t * av = a; *av = v; lv_obj_invalidate(spectrum_obj); } static lv_obj_t * album_img_create(lv_obj_t * parent) { LV_IMG_DECLARE(img_lv_demo_music_cover_1); LV_IMG_DECLARE(img_lv_demo_music_cover_2); LV_IMG_DECLARE(img_lv_demo_music_cover_3); lv_obj_t * img; img = lv_img_create(parent); switch(track_id) { case 2: lv_img_set_src(img, &img_lv_demo_music_cover_3); spectrum = spectrum_3; spectrum_len = sizeof(spectrum_3) / sizeof(spectrum_3[0]); break; case 1: lv_img_set_src(img, &img_lv_demo_music_cover_2); spectrum = spectrum_2; spectrum_len = sizeof(spectrum_2) / sizeof(spectrum_2[0]); break; case 0: lv_img_set_src(img, &img_lv_demo_music_cover_1); spectrum = spectrum_1; spectrum_len = sizeof(spectrum_1) / sizeof(spectrum_1[0]); break; } lv_img_set_antialias(img, false); lv_obj_align(img, LV_ALIGN_CENTER, 0, 0); lv_obj_add_event_cb(img, album_gesture_event_cb, LV_EVENT_GESTURE, NULL); lv_obj_clear_flag(img, LV_OBJ_FLAG_GESTURE_BUBBLE); lv_obj_add_flag(img, LV_OBJ_FLAG_CLICKABLE); return img; } static void album_gesture_event_cb(lv_event_t * e) { lv_dir_t dir = lv_indev_get_gesture_dir(lv_indev_get_act()); if(dir == LV_DIR_LEFT) _lv_demo_music_album_next(true); if(dir == LV_DIR_RIGHT) _lv_demo_music_album_next(false); } static void play_event_click_cb(lv_event_t * e) { lv_obj_t * obj = lv_event_get_target(e); if(lv_obj_has_state(obj, LV_STATE_CHECKED)) { _lv_demo_music_resume(); } else { _lv_demo_music_pause(); } } static void prev_click_event_cb(lv_event_t * e) { LV_UNUSED(e); _lv_demo_music_album_next(false); } static void next_click_event_cb(lv_event_t * e) { lv_event_code_t code = lv_event_get_code(e); if(code == LV_EVENT_CLICKED) { _lv_demo_music_album_next(true); } } static void timer_cb(lv_timer_t * t) { LV_UNUSED(t); time_act++; lv_label_set_text_fmt(time_obj, "%"LV_PRIu32":%02"LV_PRIu32, time_act / 60, time_act % 60); lv_slider_set_value(slider_obj, time_act, LV_ANIM_ON); } static void spectrum_end_cb(lv_anim_t * a) { LV_UNUSED(a); _lv_demo_music_album_next(true); } static void stop_start_anim_timer_cb(lv_timer_t * t) { LV_UNUSED(t); start_anim = false; stop_start_anim_timer = NULL; lv_obj_refresh_ext_draw_size(spectrum_obj); } static void album_fade_anim_cb(void * var, int32_t v) { lv_obj_set_style_img_opa(var, v, 0); } #endif /*LV_USE_DEMO_MUSIC*/