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lvgl_cpp/demos/music/lv_demo_music_main.c

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/**
* @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(lv_timer_t * t);
static void spectrum_end_cb(lv_anim_t * a);
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 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;
lv_timer_t * timer = lv_timer_create(stop_start_anim, INTRO_TIME + 6000, NULL);
lv_timer_set_repeat_count(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_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_obj_fade_out(album_img_obj, 500, 0);
lv_anim_t 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_obj_fade_in(album_img_obj, 500, 100);
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);
}
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(lv_timer_t * t)
{
LV_UNUSED(t);
start_anim = false;
lv_obj_refresh_ext_draw_size(spectrum_obj);
}
#endif /*LV_USE_DEMO_MUSIC*/
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