MeowOS for HiBy R3 Pro II — 公共发布版本（历史已重置）
• 全新单提交：清除含敏感信息的旧历史（sudo 口令、内网 IP、SSH 密钥路径、热点 SSID、设备 MAC） • 本地开发文档/测试记录/构建脚本全部移入 gitignored 的 devdocs/ 与 scripts/build/（不入库） • 保留：MeowOS 源码（launcher/watchdog/bootmenu/meow_svcd/SDK）、项目规范文档、mips-repo 增补组件：SDK 统一日志+通知 API、meow_svcd 服务管理器、mips-repo 软件仓库
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/*
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* meow_ui_sys.c — SDK 内置系统状态读取器 + 全局状态栏（A-0 核心）。
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*
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* 职责：
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* 1. 状态读取器：读 /sys/class/power_supply/（电量/充电）、WiFi operstate、
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* 蓝牙实上电、音量（/usr/data/meow/settings.conf 的 audio.volume，与 launcher
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* 同源单点）；时钟在绘制时现取 localtime。1s 轻刷，蓝牙 30s 缓存。
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* 2. 全局状态栏绘制：把时钟/电量/WiFi/蓝牙/音量画进 back_buf 顶部 MUI_SBAR_H 行；
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* 由渲染后端 present() 前置调用（z 最顶），非全屏可见。
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* 3. 显隐/全屏状态 + 公共 API（meow_ui_set_statusbar / set_fullscreen / ...）。
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*
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* 注意：所有读取在事件循环主线内做（无独立线程），1s 频率同步读取 sysfs/小文件，
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* 开销可忽略；蓝牙 hciconfig 为 popen(spawn) 较贵，仅 30s 刷一次并缓存。
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*/
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#include "meow_ui_sys.h"
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#include "meow_ui_internal.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <time.h>
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#define MEOW_SETTINGS_FILE "/usr/data/meow/settings.conf"
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#define VOL_DEFAULT 60
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/* 蓝牙 powered 缓存刷新间隔（hciconfig 较贵） */
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#define BT_REFRESH_MS 30000
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static meow_sys_state g_sys;
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static int g_sys_inited = 0;
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/* 显隐/全屏状态（公共 API 与绘制/输入共用） */
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static int g_statusbar_on = 1; /* 默认显示 */
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static int g_fullscreen = 0; /* 默认非全屏 */
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static int g_statusbar_force = 0; /* 1s 刷新后置位，强制重画顶部条 */
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static uint64_t now_ms(void)
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{
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC, &ts);
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return (uint64_t)ts.tv_sec * 1000u + (uint64_t)ts.tv_nsec / 1000000u;
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}
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/* 读一份 sysfs/文件字符串（剥尾随换行）；失败回退 "" */
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static void read_str(const char *path, char *buf, size_t n)
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{
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buf[0] = 0;
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int fd = open(path, O_RDONLY);
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if (fd < 0) return;
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ssize_t r = read(fd, buf, n - 1);
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close(fd);
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if (r <= 0) { buf[0] = 0; return; }
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buf[r] = 0;
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while (r > 0 && (buf[r-1] == '\n' || buf[r-1] == '\r')) buf[--r] = 0;
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}
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static int read_int(const char *path)
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{
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char buf[24];
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read_str(path, buf, sizeof buf);
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if (!buf[0]) return -1;
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return atoi(buf);
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}
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static int hci_powered(void)
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{
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FILE *p = popen("hciconfig -a hci0 2>/dev/null", "r");
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if (!p) return 0;
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int up = 0;
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char buf[256];
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while (fgets(buf, sizeof buf, p)) {
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char *s = buf, *tok;
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while ((tok = strsep(&s, " \t\r\n")) != NULL) {
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if (!strcmp(tok, "UP")) { up = 1; break; }
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}
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}
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pclose(p);
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return up;
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}
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/* 音量：读 settings.conf 的 audio.volume（launcher 同源，watchdog 写同文件）。 */
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static int settings_vol(void)
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{
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FILE *f = fopen(MEOW_SETTINGS_FILE, "r");
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if (!f) return VOL_DEFAULT;
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int vol = VOL_DEFAULT;
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char buf[128];
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while (fgets(buf, sizeof buf, f)) {
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if (!strncmp(buf, "audio.volume=", 13)) {
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int v = atoi(buf + 13);
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if (v >= 0 && v <= 100) vol = v;
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break;
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}
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}
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fclose(f);
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return vol;
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}
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int meow_ui_sys_init(void)
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{
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memset(&g_sys, 0, sizeof g_sys);
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g_sys.batt = -1;
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g_sys.vol = settings_vol();
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g_statusbar_on = 1;
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g_fullscreen = 0;
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g_statusbar_force = 1;
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meow_ui_sys_refresh();
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g_sys_inited = 1;
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return 0;
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}
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void meow_ui_sys_refresh(void)
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{
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g_sys.batt = read_int("/sys/class/power_supply/battery/capacity");
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if (g_sys.batt < 0 || g_sys.batt > 100) g_sys.batt = -1;
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char st[16];
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read_str("/sys/class/power_supply/battery/status", st, sizeof st);
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g_sys.charging = (strstr(st, "Charg") || strstr(st, "Full")) ? 1 : 0;
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char op[16];
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read_str("/sys/class/net/wlan0/operstate", op, sizeof op);
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g_sys.wifi_on = !strcmp(op, "up") ? 1 : 0;
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g_sys.vol = settings_vol();
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/* 蓝牙：hci0 存在性检查便宜；上电状态贵（hciconfig spawn），30s 缓存。 */
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static uint64_t last_bt_ms = 0;
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uint64_t n = now_ms();
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g_sys.bt_seen = access("/sys/class/bluetooth/hci0", F_OK) == 0;
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if (!g_sys.bt_seen) {
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g_sys.bt_on = 0;
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last_bt_ms = n;
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} else if (!last_bt_ms || (n - last_bt_ms) >= BT_REFRESH_MS) {
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g_sys.bt_on = hci_powered();
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last_bt_ms = n;
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}
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/* 时钟每秒变 → 强制顶条重画（时间在绘制时现取） */
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g_statusbar_force = 1;
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}
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const meow_sys_state *meow_ui_sys_get(void) { return &g_sys; }
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/* ---- 公共 API ---- */
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void meow_ui_set_statusbar(int visible)
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{
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g_statusbar_on = visible ? 1 : 0;
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g_statusbar_force = 1; /* 显隐切换也要重画顶条 */
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}
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int meow_ui_statusbar_visible(void)
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{
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return g_statusbar_on && !g_fullscreen;
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}
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void meow_ui_set_fullscreen(int on)
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{
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g_fullscreen = on ? 1 : 0;
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g_statusbar_force = 1; /* 进出全屏立即反映（显示/隐藏顶条） */
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}
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int meow_ui_statusbar_height(void)
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{
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return meow_ui_sys_statusbar_active() ? MUI_SBAR_H : 0;
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}
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/* ---- 内部（gfx/input 用） ---- */
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int meow_ui_sys_statusbar_active(void)
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{
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return g_statusbar_on && !g_fullscreen;
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}
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int meow_ui_sys_statusbar_height(void)
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{
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return meow_ui_sys_statusbar_active() ? MUI_SBAR_H : 0;
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}
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int meow_ui_sys_statusbar_force(void)
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{
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int f = g_statusbar_force;
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g_statusbar_force = 0;
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return f;
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}
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/* 状态栏右侧信息串：batt% WIFI 蓝牙/蓝牙 VOL nn%（同 launcher statusbar_right_str） */
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static void statusbar_right_str(char *out, size_t n)
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{
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char batt[16] = "", wifi[16] = "", vol[20] = "", bt[16] = "";
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if (g_sys.batt >= 0) snprintf(batt, sizeof batt, "%d%%", g_sys.batt);
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if (g_sys.wifi_on) snprintf(wifi, sizeof wifi, "WIFI");
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snprintf(vol, sizeof vol, "VOL %d%%", g_sys.vol);
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if (g_sys.bt_seen && g_sys.bt_on)
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snprintf(bt, sizeof bt, meow_gfx_mfont_ready() ? "蓝牙" : "BT");
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out[0] = 0;
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if (batt[0]) strcat(out, batt);
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if (wifi[0]) { if (out[0]) strcat(out, " "); strcat(out, wifi); }
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if (bt[0]) { if (out[0]) strcat(out, " "); strcat(out, bt); }
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if (vol[0]) { if (out[0]) strcat(out, " "); strcat(out, vol); }
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}
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void meow_ui_sys_statusbar_render(void)
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{
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if (!meow_ui_sys_statusbar_active()) return;
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const meow_theme *th = meow_theme_get();
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int w = meow_ui_width();
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int h = MUI_SBAR_H;
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/* 整条清底：覆盖 app 可能画进顶行的内容（z 最顶） */
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meow_ui_fill_rect(0, 0, w, h, th->bg);
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/* 时钟（左）：每秒现取 localtime */
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char timebuf[16];
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time_t t = time(NULL);
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struct tm tm;
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localtime_r(&t, &tm);
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snprintf(timebuf, sizeof timebuf, "%02d:%02d:%02d", tm.tm_hour, tm.tm_min, tm.tm_sec);
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meow_ui_text(8, (h - meow_ui_text_height(MUI_SBAR_FONT)) / 2, timebuf, MUI_SBAR_FONT, th->fg);
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/* 右侧信息串：batt% WIFI 蓝牙 VOL nn% */
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char right[96];
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statusbar_right_str(right, sizeof right);
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if (right[0])
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meow_ui_text_right(w - 8, (h - meow_ui_text_height(MUI_SBAR_FONT)) / 2, right, MUI_SBAR_FONT, th->fg);
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/* 分隔线（栏内最底 1px，主题次要色）；内容 inset=statusbar_height()=40 从 y=40 起即干净 */
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meow_ui_fill_rect(0, h - 1, w, 1, th->dim);
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g_statusbar_force = 0;
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}
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