/* Deshab Desktop Manager — 图形桌面环境 * * 功能：窗口管理、任务栏、桌面图标、事件路由、应用加载 * 风格：Sealed Arc 视觉设计语言 * 输入：PS/2 键盘 + PS/2 鼠标 */ #include "../UTSM/include/utsm/dsk.h" /* block_read 函数类型（从 kernel_api + 0xA8 获取） */ typedef int (*desktop_block_read_fn)(void *ctx, unsigned long long lba, unsigned int count, void *buffer); /* 先包含 ascii_bitmaps.c（定义 g_ascii），再包含 deshab_ui.h（引用 g_ascii） */ #include "../firstInit/ascii_bitmaps.c" #include "../UTSM/include/utsm/deshab_ui.h" typedef unsigned char u8; typedef unsigned short u16; typedef unsigned int u32; typedef unsigned long long u64; typedef long long i64; #define COM1 0x3F8 static __inline__ void outb(u16 port, u8 value) { __asm__ volatile("outb %0,%1"::"a"(value),"Nd"(port)); } static __inline__ u8 inb(u16 port) { u8 v; __asm__ volatile("inb %1,%0":"=a"(v):"Nd"(port)); return v; } static void sputc(char c) { for (unsigned int i=0; i<100000; i++) { if (inb(COM1+5)&0x20) break; } outb(COM1, (unsigned char)c); } static void swrite(const char *s) { while(*s) { if(*s=='\n')sputc('\r'); sputc(*s++); } } static void slog(const char *s) { swrite("[desktop] "); swrite(s); swrite("\n"); } /* ============================================================ * 常量 * ============================================================ */ #define MAX_WINDOWS 8 #define TASKBAR_H 40 #define TITLEBAR_H 28 #define BORDER_W 2 #define DESKTOP_ICON_W 80 #define DESKTOP_ICON_H 72 #define ICON_GUTTER_X 16 #define ICON_GUTTER_Y 16 #define CURSOR_SIZE 24 /* ============================================================ * 事件系统 * ============================================================ */ typedef enum { EV_MOUSE_MOVE = 1, EV_MOUSE_DOWN, EV_MOUSE_UP, EV_KEY_DOWN, EV_KEY_UP, } ev_type; typedef struct { ev_type type; int mx, my; /* 鼠标全局坐标 */ int button; /* 0=左, 1=右 */ u8 scancode; int shift, ctrl, alt; } desktop_event; /* ============================================================ * 窗口 * ============================================================ */ typedef struct desktop_window { int id; int x, y, w, h; int visible; int focused; int minimized; char title[48]; int app_id; /* 关联应用 ID */ void *app_state; /* 应用私有状态 */ int closing; /* 关闭中标记 */ int dirty; /* 需要重绘 */ } desktop_window; /* ============================================================ * 应用描述符 * ============================================================ */ /* 前向声明 */ struct desktop_window; typedef struct desktop_window desktop_win; typedef struct app_ctx { du_context *fb; desktop_win *win; int client_x, client_y, client_w, client_h; int should_exit; desktop_block_read_fn block_read; const void *kernel_api; } app_ctx; typedef void *(*app_create_fn)(app_ctx *ctx); typedef void (*app_event_fn)(void *state, app_ctx *ctx, desktop_event *ev); typedef void (*app_draw_fn)(void *state, app_ctx *ctx); typedef void (*app_destroy_fn)(void *state); typedef struct { const char *name; const char *display_name; u32 default_w, default_h; app_create_fn on_create; app_event_fn on_event; app_draw_fn on_draw; app_destroy_fn on_destroy; } app_descriptor; /* ============================================================ * 全局状态 * ============================================================ */ static du_context g_fb; static u64 g_fb_addr, g_fb_w, g_fb_h, g_fb_pitch; static const void *g_kernel_api; static desktop_block_read_fn g_block_read; /* 鼠标状态 */ static int g_mouse_x = 400, g_mouse_y = 300; static int g_mouse_btn = 0; /* bit0=左键 */ static u8 g_mouse_buf[3]; static int g_mouse_idx = 0; static int g_mouse_has_pkt = 0; /* 光标背景保存 */ static u32 g_cursor_save[CURSOR_SIZE * CURSOR_SIZE]; static int g_cursor_saved = 0; static int g_cursor_old_x = -1, g_cursor_old_y = -1; /* 键盘状态 */ static int g_shift = 0, g_ctrl = 0, g_alt = 0; static int g_e0 = 0; /* 窗口列表 */ static desktop_window g_windows[MAX_WINDOWS]; static int g_win_count = 0; static int g_next_win_id = 1; static int g_focused_win = -1; /* 拖拽状态 */ static int g_dragging = 0; static int g_drag_win = -1; static int g_drag_off_x, g_drag_off_y; /* 应用表 */ #define MAX_APPS 8 static app_descriptor g_apps[MAX_APPS]; static int g_app_count = 0; /* 桌面图标 */ typedef struct { int app_id; int x, y; /* 图标位置 */ const char *label; } desktop_icon; #define MAX_ICONS 8 static desktop_icon g_icons[MAX_ICONS]; static int g_icon_count = 0; /* ============================================================ * 箭头光标形状（24×24，1=前景 0=透明） * ============================================================ */ static const u8 cursor_shape[24][24] = { {1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,1,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,1,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {1,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}, }; /* ============================================================ * 应用图标形状（32×32 像素数据，用程序化方式生成） * ============================================================ */ /* 绘制终端图标（32×32）到指定位置 */ static void draw_icon_terminal(du_context *ctx, int cx, int cy) { u32 bg = DP_ABYSS_700; u32 fg = DP_SEAL_300; u32 border = DP_SEAL_500; /* 圆角矩形背景 */ du_fill_rounded_rect(ctx, cx, cy, 32, 32, bg, 6); du_rect_outline(ctx, cx, cy, 32, 32, border, 6); /* >_ 符号 */ du_fill_rect(ctx, cx+5, cy+10, 8, 2, fg); du_fill_rect(ctx, cx+5, cy+10, 2, 6, fg); du_fill_rect(ctx, cx+13, cy+12, 2, 2, fg); du_fill_rect(ctx, cx+17, cy+16, 6, 2, fg); } /* 绘制编辑器图标（32×32） */ static void draw_icon_editor(du_context *ctx, int cx, int cy) { u32 bg = DP_ABYSS_700; u32 fg = DP_SEAL_500; u32 border = DP_SEAL_300; du_fill_rounded_rect(ctx, cx, cy, 32, 32, bg, 6); du_rect_outline(ctx, cx, cy, 32, 32, border, 6); /* 文本行 */ for (int i = 0; i < 5; i++) { int lw = (i == 0) ? 20 : (i == 3 ? 12 : 16); du_fill_rect(ctx, cx+6, cy+6+i*5, lw, 2, fg); } } /* 绘制文件夹图标（32×32） */ static void draw_icon_folder(du_context *ctx, int cx, int cy) { u32 bg = DP_ARC_500; u32 fg = DP_ARC_300; u32 border = DP_ARC_700; du_fill_rounded_rect(ctx, cx, cy, 32, 32, bg, 6); du_rect_outline(ctx, cx, cy, 32, 32, border, 6); /* 文件夹标签 */ du_fill_rect(ctx, cx+4, cy+6, 12, 3, fg); /* 文件夹主体 */ du_fill_rect(ctx, cx+4, cy+12, 24, 2, border); du_fill_rect(ctx, cx+4, cy+14, 24, 12, fg); } /* 绘制计算器图标（32×32） */ static void draw_icon_calc(du_context *ctx, int cx, int cy) { u32 bg = DP_ABYSS_700; u32 fg = DP_WARNING; u32 border = DP_WARNING; du_fill_rounded_rect(ctx, cx, cy, 32, 32, bg, 6); du_rect_outline(ctx, cx, cy, 32, 32, border, 6); /* 屏幕 */ du_fill_rect(ctx, cx+4, cy+4, 24, 6, DP_ABYSS_900); du_fill_rect(ctx, cx+22, cy+5, 4, 4, fg); /* 按键网格 */ for (int r = 0; r < 3; r++) { for (int c = 0; c < 3; c++) { du_fill_rect(ctx, cx+4+c*8, cy+14+r*6, 6, 4, DP_NEUTRAL_400); } } } /* ============================================================ * 光标管理 * ============================================================ */ static void cursor_save_bg(int mx, int my) { for (int r = 0; r < CURSOR_SIZE; r++) { for (int c = 0; c < CURSOR_SIZE; c++) { int x = mx + c, y = my + r; if (x >= 0 && (u64)x < g_fb_w && y >= 0 && (u64)y < g_fb_h) { u32 *line = (u32 *)((u8 *)g_fb.fb + (u64)y * g_fb.pitch); g_cursor_save[r * CURSOR_SIZE + c] = line[x]; } else { g_cursor_save[r * CURSOR_SIZE + c] = 0; } } } g_cursor_saved = 1; g_cursor_old_x = mx; g_cursor_old_y = my; } static void cursor_restore_bg(void) { if (!g_cursor_saved) return; for (int r = 0; r < CURSOR_SIZE; r++) { for (int c = 0; c < CURSOR_SIZE; c++) { int x = g_cursor_old_x + c, y = g_cursor_old_y + r; if (x >= 0 && (u64)x < g_fb_w && y >= 0 && (u64)y < g_fb_h) { u32 *line = (u32 *)((u8 *)g_fb.fb + (u64)y * g_fb.pitch); line[x] = g_cursor_save[r * CURSOR_SIZE + c]; } } } g_cursor_saved = 0; } static void cursor_draw(int mx, int my) { for (int r = 0; r < CURSOR_SIZE; r++) { for (int c = 0; c < CURSOR_SIZE; c++) { if (cursor_shape[r][c]) { du_pixel(&g_fb, mx + c, my + r, DS_DARK_TEXT_PRIMARY); } } } } /* ============================================================ * 窗口管理 * ============================================================ */ static desktop_window *win_find(int id) { for (int i = 0; i < g_win_count; i++) { if (g_windows[i].id == id) return &g_windows[i]; } return 0; } static desktop_window *win_find_at(int mx, int my) { /* 从后往前搜索（后面的窗口在上面） */ for (int i = g_win_count - 1; i >= 0; i--) { desktop_window *w = &g_windows[i]; if (!w->visible || w->minimized) continue; if (mx >= w->x && mx < w->x + w->w && my >= w->y && my < w->y + w->h) { return w; } } return 0; } static void win_bring_to_front(desktop_window *w) { int idx = -1; for (int i = 0; i < g_win_count; i++) { if (g_windows[i].id == w->id) { idx = i; break; } } if (idx < 0 || idx == g_win_count - 1) return; desktop_window tmp = g_windows[idx]; for (int i = idx; i < g_win_count - 1; i++) { g_windows[i] = g_windows[i+1]; } g_windows[g_win_count - 1] = tmp; } static desktop_window *win_create(int app_id, const char *title, int x, int y, int w, int h) { if (g_win_count >= MAX_WINDOWS) return 0; desktop_window *win = &g_windows[g_win_count++]; int id = g_next_win_id++; win->id = id; win->x = x; win->y = y; win->w = w; win->h = h; win->visible = 1; win->focused = 1; win->minimized = 0; win->app_id = app_id; win->app_state = 0; win->closing = 0; win->dirty = 1; /* 拷贝标题 */ for (int i = 0; i < 47 && title[i]; i++) win->title[i] = title[i]; win->title[47] = 0; /* 取消其他窗口焦点 */ for (int i = 0; i < g_win_count - 1; i++) g_windows[i].focused = 0; g_focused_win = id; return win; } static void win_destroy(desktop_window *w) { int idx = -1; for (int i = 0; i < g_win_count; i++) { if (g_windows[i].id == w->id) { idx = i; break; } } if (idx < 0) return; /* 调用应用的 on_destroy */ if (w->app_id >= 0 && w->app_id < g_app_count && g_apps[w->app_id].on_destroy && w->app_state) { g_apps[w->app_id].on_destroy(w->app_state); } for (int i = idx; i < g_win_count - 1; i++) g_windows[i] = g_windows[i+1]; g_win_count--; if (g_focused_win == w->id) { g_focused_win = g_win_count > 0 ? g_windows[g_win_count-1].id : -1; if (g_focused_win >= 0) win_find(g_focused_win)->focused = 1; } } static int win_hit_titlebar(desktop_window *w, int mx, int my) { return mx >= w->x && mx < w->x + w->w && my >= w->y && my < w->y + TITLEBAR_H; } static int win_hit_close_btn(desktop_window *w, int mx, int my) { int bx = w->x + w->w - 28; int by = w->y + 4; return mx >= bx && mx < bx + 24 && my >= by && my < by + 20; } /* ============================================================ * 窗口装饰绘制 * ============================================================ */ static void draw_window_frame(desktop_window *w) { if (!w->visible || w->minimized) return; u32 titlebar_bg = w->focused ? DP_ABYSS_600 : DP_ABYSS_800; u32 border_col = w->focused ? DS_DARK_BORDER_FOCUS : DS_DARK_BORDER; /* 发光效果（焦点窗口） */ if (w->focused) { du_rect_glow(&g_fb, w->x-2, w->y-2, w->w+4, w->h+4, DS_DARK_BORDER_FOCUS, 10, 3); } /* 窗口主体背景 */ du_fill_rounded_rect(&g_fb, w->x, w->y, w->w, w->h, DS_DARK_BG_SECONDARY, DU_RADIUS_LG); /* 标题栏 */ du_fill_rect(&g_fb, w->x + BORDER_W, w->y + BORDER_W, w->w - 2*BORDER_W, TITLEBAR_H - BORDER_W, titlebar_bg); /* 标题文字 */ du_draw_string(&g_fb, w->title, w->x + (i64)DU_SPACE_SM, w->y + (TITLEBAR_H - (i64)DU_ASCII_CELL_H) / 2, DS_DARK_TEXT_PRIMARY, titlebar_bg, DU_ASCII_STEP); /* 关闭按钮 */ int bx = w->x + w->w - 28; int by = w->y + 4; du_fill_rounded_rect(&g_fb, bx, by, 24, 20, DP_ERROR, DU_RADIUS_SM); du_draw_string(&g_fb, "X", bx + 8, by + 1, DP_NEUTRAL_900, DP_ERROR, DU_ASCII_STEP); /* 边框 */ du_rect_outline(&g_fb, w->x, w->y, w->w, w->h, border_col, DU_RADIUS_LG); /* 标题栏底线 */ du_fill_rect(&g_fb, w->x + BORDER_W, w->y + TITLEBAR_H, w->w - 2*BORDER_W, 1, border_col); } /* ============================================================ * 任务栏绘制 * ============================================================ */ static void draw_taskbar(void) { i64 tb_y = (i64)g_fb_h - TASKBAR_H; du_fill_rect(&g_fb, 0, tb_y, (i64)g_fb_w, TASKBAR_H, DP_ABYSS_800); /* 顶部强调线 */ du_fill_rect(&g_fb, 0, tb_y, (i64)g_fb_w, 2, DS_DARK_ACCENT); /* Start 按钮 */ du_fill_rounded_rect(&g_fb, (i64)DU_SPACE_SM, tb_y + 4, 48, 32, DP_ABYSS_600, DU_RADIUS_SM); du_draw_string(&g_fb, "D", (i64)DU_SPACE_SM + 18, tb_y + 8, DS_DARK_ACCENT_LIGHT, DP_ABYSS_600, DU_ASCII_STEP); /* 快速启动图标 */ int qx = 64; for (int i = 0; i < g_app_count && i < 4; i++) { int icon_x = qx + i * 40; switch (i) { case 0: draw_icon_terminal(&g_fb, icon_x + 4, (int)tb_y + 4); break; case 1: draw_icon_editor(&g_fb, icon_x + 4, (int)tb_y + 4); break; case 2: draw_icon_folder(&g_fb, icon_x + 4, (int)tb_y + 4); break; case 3: draw_icon_calc(&g_fb, icon_x + 4, (int)tb_y + 4); break; } } /* 窗口按钮 */ int wx = qx + 4 * 40 + (int)DU_SPACE_LG; for (int i = 0; i < g_win_count; i++) { desktop_window *w = &g_windows[i]; if (w->minimized) continue; u32 btn_bg = w->focused ? DS_DARK_ACCENT : DP_ABYSS_600; du_fill_rounded_rect(&g_fb, wx, tb_y + 4, 100, 32, btn_bg, DU_RADIUS_SM); du_draw_string(&g_fb, w->title, wx + 4, tb_y + 8, DS_DARK_TEXT_PRIMARY, btn_bg, DU_ASCII_STEP); wx += 104; if (wx > (int)g_fb_w - 200) break; } /* 时钟 */ u8 rtc_h = 0, rtc_m = 0; outb(0x70, 4); rtc_h = inb(0x71); outb(0x70, 2); rtc_m = inb(0x71); /* BCD → 二进制 */ rtc_h = (u8)((rtc_h >> 4) * 10 + (rtc_h & 0xF)); rtc_m = (u8)((rtc_m >> 4) * 10 + (rtc_m & 0xF)); char clock_str[8]; clock_str[0] = '0' + rtc_h / 10; clock_str[1] = '0' + rtc_h % 10; clock_str[2] = ':'; clock_str[3] = '0' + rtc_m / 10; clock_str[4] = '0' + rtc_m % 10; clock_str[5] = 0; du_draw_string(&g_fb, clock_str, (i64)g_fb_w - 5 * (i64)DU_ASCII_STEP - (i64)DU_SPACE_MD, tb_y + (TASKBAR_H - (i64)DU_ASCII_CELL_H) / 2, DS_DARK_TEXT_SECONDARY, DP_ABYSS_800, DU_ASCII_STEP); } /* ============================================================ * 桌面图标绘制 * ============================================================ */ static void draw_desktop_icons(void) { for (int i = 0; i < g_icon_count; i++) { desktop_icon *ic = &g_icons[i]; int cx = ic->x; int cy = ic->y; /* 根据应用 ID 画不同图标 */ switch (ic->app_id) { case 0: draw_icon_terminal(&g_fb, cx, cy); break; case 1: draw_icon_editor(&g_fb, cx, cy); break; case 2: draw_icon_folder(&g_fb, cx, cy); break; case 3: draw_icon_calc(&g_fb, cx, cy); break; default: draw_icon_terminal(&g_fb, cx, cy); break; } /* 标签文字 */ int label_len = 0; while (ic->label[label_len]) label_len++; int label_x = cx + (32 - label_len * (int)DU_ASCII_STEP) / 2; if (label_x < cx) label_x = cx; du_draw_string(&g_fb, ic->label, label_x, cy + 36, DS_DARK_TEXT_PRIMARY, DS_DARK_BG_PRIMARY, DU_ASCII_STEP); } } /* ============================================================ * PS/2 鼠标处理 * ============================================================ */ static void ps2_mouse_init(void) { /* 启用 AUX 设备 */ for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x64, 0xA8); /* 启用 AUX IRQ */ for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x64, 0x20); for (int t = 0; t < 100000; t++) { if (inb(0x64) & 1) break; } u8 cfg = inb(0x60); cfg |= 0x02; /* enable AUX IRQ12 */ cfg &= ~0x20; /* enable AUX clock */ for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x64, 0x60); for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x60, cfg); /* 复位鼠标 */ for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x64, 0xD4); for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x60, 0xFF); for (int t = 0; t < 100000; t++) { if (inb(0x64) & 1) break; } inb(0x60); /* ACK */ /* 启用 streaming */ for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x64, 0xD4); for (int t = 0; t < 100000; t++) { if (!(inb(0x64) & 2)) break; } outb(0x60, 0xF4); for (int t = 0; t < 100000; t++) { if (inb(0x64) & 1) break; } inb(0x60); /* ACK */ slog("mouse init ok"); } static int ps2_mouse_poll(void) { u8 st = inb(0x64); if (!(st & 1)) return 0; u8 data = inb(0x60); if (!(st & 0x20)) return 0; /* 不是鼠标数据 */ g_mouse_buf[g_mouse_idx++] = data; if (g_mouse_idx < 3) return 0; g_mouse_idx = 0; /* 检查 bit3 同步 */ if (!(g_mouse_buf[0] & 0x08)) return 0; int dx = (int)(i8)g_mouse_buf[1]; int dy = (int)(i8)g_mouse_buf[2]; if (g_mouse_buf[0] & 0x10) dx = -dx; /* X sign */ /* 注意：Y 轴方向（鼠标 Y 向上为正，屏幕 Y 向下为正） */ if (!(g_mouse_buf[0] & 0x20)) dy = -dy; /* Y sign */ else dy = -dy; dy = -dy; /* 鼠标 Y 翻转 */ g_mouse_x += dx; g_mouse_y += dy; if (g_mouse_x < 0) g_mouse_x = 0; if (g_mouse_y < 0) g_mouse_y = 0; if (g_mouse_x >= (int)g_fb_w - CURSOR_SIZE) g_mouse_x = (int)g_fb_w - CURSOR_SIZE; if (g_mouse_y >= (int)g_fb_h - CURSOR_SIZE) g_mouse_y = (int)g_fb_h - CURSOR_SIZE; g_mouse_btn = (g_mouse_buf[0] & 0x01) ? 1 : 0; g_mouse_has_pkt = 1; return 1; } /* ============================================================ * 键盘扫描码 → ASCII * ============================================================ */ static char scan_to_ascii(u8 sc, int shift) { static const char normal[58] = { 0, 27, '1','2','3','4','5','6','7','8','9','0','-','=', 8, '\t', 'q','w','e','r','t','y','u','i','o','p','[',']','\n',0, 'a','s','d','f','g','h','j','k','l',';','\'', '`',0,'\\', 'z','x','c','v','b','n','m',',','.','/',0,'*',0,' ' }; static const char shifted[58] = { 0, 27, '!','@','#','$','%','^','&','*','(',')','_','+', 8, '\t', 'Q','W','E','R','T','Y','U','I','O','P','{','}','\n',0, 'A','S','D','F','G','H','J','K','L',':','"','~',0,'|', 'Z','X','C','V','B','N','M','<','>','?',0,'*',0,' ' }; if (sc >= 58) return 0; return shift ? shifted[sc] : normal[sc]; } /* ============================================================ * 内置应用：终端 (Bash) * ============================================================ */ #define TERM_MAX_COLS 80 #define TERM_MAX_ROWS 40 #define TERM_MAX_CHARS (TERM_MAX_COLS * TERM_MAX_ROWS) typedef struct { u8 ch[TERM_MAX_CHARS]; u32 fg[TERM_MAX_CHARS]; int cols, rows; int cur_col, cur_row; char input_buf[256]; int input_len, input_cursor; int prompt_len; } bash_state; static const char *BASH_PROMPT = "deshab# "; static void *bash_on_create(app_ctx *ctx) { bash_state *s = (bash_state *)0x4000000; /* 固定地址分配，避免堆依赖 */ for (int i = 0; i < TERM_MAX_CHARS; i++) { s->ch[i] = ' '; s->fg[i] = DS_DARK_TEXT_PRIMARY; } s->cols = (ctx->client_w - (int)DU_SPACE_SM * 2) / (int)DU_ASCII_STEP; s->rows = (ctx->client_h - (int)DU_SPACE_SM * 2) / (int)DU_ASCII_LINE_H; if (s->cols > TERM_MAX_COLS) s->cols = TERM_MAX_COLS; if (s->rows > TERM_MAX_ROWS) s->rows = TERM_MAX_ROWS; s->cur_col = 0; s->cur_row = 0; s->input_len = 0; s->input_cursor = 0; s->prompt_len = 0; while (BASH_PROMPT[s->prompt_len]) s->prompt_len++; /* 打印欢迎 */ const char *welcome = "Deshab Bash v0.1\n输入 help 查看命令\n\n"; while (*welcome) { if (*welcome == '\n') { s->cur_col = 0; s->cur_row++; } else { if (s->cur_row < s->rows && s->cur_col < s->cols) { int idx = s->cur_row * TERM_MAX_COLS + s->cur_col; s->ch[idx] = (u8)*welcome; s->fg[idx] = DS_DARK_TEXT_PRIMARY; } s->cur_col++; } welcome++; } return s; } static void bash_putc(bash_state *s, char c, u32 color) { if (c == '\n') { s->cur_col = 0; s->cur_row++; return; } if (s->cur_row >= s->rows) { /* 滚动 */ for (int r = 1; r < s->rows; r++) { for (int c2 = 0; c2 < s->cols; c2++) { s->ch[(r-1)*TERM_MAX_COLS+c2] = s->ch[r*TERM_MAX_COLS+c2]; s->fg[(r-1)*TERM_MAX_COLS+c2] = s->fg[r*TERM_MAX_COLS+c2]; } } for (int c2 = 0; c2 < s->cols; c2++) { s->ch[(s->rows-1)*TERM_MAX_COLS+c2] = ' '; } s->cur_row = s->rows - 1; } if (s->cur_col >= s->cols) { s->cur_col = 0; s->cur_row++; } int idx = s->cur_row * TERM_MAX_COLS + s->cur_col; s->ch[idx] = (u8)c; s->fg[idx] = color; s->cur_col++; } static void bash_puts(bash_state *s, const char *str, u32 color) { while (*str) bash_putc(s, *str++, color); } static void bash_execute(bash_state *s, const char *cmd) { while (*cmd == ' ') cmd++; bash_puts(s, BASH_PROMPT, DS_DARK_PROMPT); bash_puts(s, cmd, DS_DARK_TEXT_PRIMARY); bash_putc(s, '\n', 0); if (*cmd == 0) return; if (cmd[0]=='h'&&cmd[1]=='e'&&cmd[2]=='l'&&cmd[3]=='p') { bash_puts(s, " help clear echo version\n", DP_SUCCESS); bash_puts(s, " uname date about reboot\n", DP_SUCCESS); bash_puts(s, " halt pwd whoami id\n", DP_SUCCESS); } else if (cmd[0]=='c'&&cmd[1]=='l'&&cmd[2]=='e'&&cmd[3]=='a'&&cmd[4]=='r') { for (int i = 0; i < TERM_MAX_CHARS; i++) { s->ch[i] = ' '; } s->cur_col = 0; s->cur_row = 0; } else if (cmd[0]=='v'&&cmd[1]=='e'&&cmd[2]=='r') { bash_puts(s, "Deshab OS v0.1.0\n", DP_SUCCESS); } else if (cmd[0]=='u'&&cmd[1]=='n'&&cmd[2]=='a') { bash_puts(s, "Deshab\n", DS_DARK_TEXT_PRIMARY); } else if (cmd[0]=='a'&&cmd[1]=='b'&&cmd[2]=='o'&&cmd[3]=='u'&&cmd[4]=='t') { bash_puts(s, "Deshab OS - SAS-R0 Kernel\n", DP_SEAL_300); bash_puts(s, "Sealed Arc UI Design\n", DP_ARC_300); } else if (cmd[0]=='e'&&cmd[1]=='c'&&cmd[2]=='h'&&cmd[3]=='o') { const char *arg = cmd + 4; while (*arg == ' ') arg++; bash_puts(s, arg, DS_DARK_TEXT_PRIMARY); bash_putc(s, '\n', 0); } else if (cmd[0]=='p'&&cmd[1]=='w'&&cmd[2]=='d') { bash_puts(s, "/\n", DS_DARK_TEXT_PRIMARY); } else if (cmd[0]=='w'&&cmd[1]=='h'&&cmd[2]=='o') { bash_puts(s, "root\n", DS_DARK_TEXT_PRIMARY); } else if (cmd[0]=='i'&&cmd[1]=='d') { bash_puts(s, "uid=0(root) gid=0(root)\n", DS_DARK_TEXT_PRIMARY); } else if (cmd[0]=='r'&&cmd[1]=='e'&&cmd[2]=='b') { bash_puts(s, "Rebooting...\n", DS_DARK_PROMPT); outb(0x64, 0xFE); for(;;) __asm__("hlt"); } else if (cmd[0]=='h'&&cmd[1]=='a'&&cmd[2]=='l'&&cmd[3]=='t') { bash_puts(s, "Halted.\n", DS_DARK_PROMPT); for(;;) __asm__("hlt"); } else { bash_puts(s, "unknown: ", DP_ERROR); bash_puts(s, cmd, DP_ERROR); bash_putc(s, '\n', 0); } } static void bash_on_event(void *state, app_ctx *ctx, desktop_event *ev) { bash_state *s = (bash_state *)state; if (ev->type != EV_KEY_DOWN) return; u8 sc = ev->scancode; if (sc == 0x1C) { /* Enter */ s->input_buf[s->input_len] = 0; bash_execute(s, s->input_buf); s->input_len = 0; s->input_cursor = 0; } else if (sc == 0x0E) { /* Backspace */ if (s->input_cursor > 0) { for (int i = s->input_cursor-1; i < s->input_len-1; i++) s->input_buf[i] = s->input_buf[i+1]; s->input_len--; s->input_cursor--; } } else { char c = scan_to_ascii(sc, ev->shift); if (c && c >= 32 && c <= 126 && s->input_len < 255) { for (int i = s->input_len; i > s->input_cursor; i--) s->input_buf[i] = s->input_buf[i-1]; s->input_buf[s->input_cursor++] = c; s->input_len++; } } ctx->win->dirty = 1; } static void bash_on_draw(void *state, app_ctx *ctx) { bash_state *s = (bash_state *)state; int cx = ctx->client_x; int cy = ctx->client_y; int cw = ctx->client_w; int ch = ctx->client_h; /* 背景 */ du_fill_rect(&g_fb, cx, cy, cw, ch, DS_DARK_BG_PRIMARY); /* 渲染所有字符 */ for (int r = 0; r < s->rows; r++) { for (int c = 0; c < s->cols; c++) { int idx = r * TERM_MAX_COLS + c; if (s->ch[idx] == ' ') continue; du_draw_char(&g_fb, s->ch[idx], cx + (int)DU_SPACE_SM + c * (int)DU_ASCII_STEP, cy + (int)DU_SPACE_SM + r * (int)DU_ASCII_LINE_H, s->fg[idx], DS_DARK_BG_PRIMARY); } } /* 绘制当前输入行 */ int input_y = cy + (int)DU_SPACE_SM + s->cur_row * (int)DU_ASCII_LINE_H; /* 提示符 */ du_draw_string(&g_fb, BASH_PROMPT, cx + (int)DU_SPACE_SM, input_y, DS_DARK_PROMPT, DS_DARK_BG_PRIMARY, DU_ASCII_STEP); /* 输入内容 */ du_draw_string(&g_fb, s->input_buf, cx + (int)DU_SPACE_SM + s->prompt_len * (int)DU_ASCII_STEP, input_y, DS_DARK_TEXT_PRIMARY, DS_DARK_BG_PRIMARY, DU_ASCII_STEP); /* 光标 */ int cursor_x = cx + (int)DU_SPACE_SM + (s->prompt_len + s->input_cursor) * (int)DU_ASCII_STEP; du_fill_rect(&g_fb, cursor_x, input_y + (int)DU_ASCII_CELL_H - 3, (int)DU_ASCII_CELL_W, 2, DS_DARK_CURSOR); } static void bash_on_destroy(void *state) { (void)state; } /* ============================================================ * 内置应用：文本编辑器 (Editor) * ============================================================ */ #define EDITOR_BUF_SIZE 65536 typedef struct { char text[EDITOR_BUF_SIZE]; int text_len; int cursor_pos; int scroll_y; /* 行偏移 */ int cursor_line; int cursor_col; int modified; char filename[64]; } editor_state; static void editor_recalc_cursor(editor_state *s) { s->cursor_line = 0; s->cursor_col = 0; for (int i = 0; i < s->cursor_pos && i < s->text_len; i++) { if (s->text[i] == '\n') { s->cursor_line++; s->cursor_col = 0; } else s->cursor_col++; } } static int editor_line_start(editor_state *s, int line) { int l = 0; for (int i = 0; i < s->text_len; i++) { if (l == line) return i; if (s->text[i] == '\n') l++; } return s->text_len; } static void *editor_on_create(app_ctx *ctx) { editor_state *s = (editor_state *)0x5000000; /* 固定地址 */ s->text_len = 0; s->cursor_pos = 0; s->scroll_y = 0; s->modified = 0; s->filename[0] = 0; /* 默认内容 */ const char *sample = "# Welcome to Deshab Editor\n#\n\nStart typing here...\n"; while (*sample && s->text_len < EDITOR_BUF_SIZE - 1) { s->text[s->text_len++] = *sample++; } s->cursor_pos = s->text_len; editor_recalc_cursor(s); /* 设置窗口标题 */ du_draw_string(&g_fb, "", 0, 0, 0, 0, 0); /* 占位 */ for (int i = 0; i < 63; i++) ctx->win->title[i] = 0; const char *t = "Editor - untitled"; for (int i = 0; t[i] && i < 47; i++) ctx->win->title[i] = t[i]; (void)ctx; return s; } static void editor_on_event(void *state, app_ctx *ctx, desktop_event *ev) { editor_state *s = (editor_state *)state; if (ev->type != EV_KEY_DOWN) return; u8 sc = ev->scancode; int e0 = 0; /* TODO: 扩展键处理 */ if (sc == 0x1C) { /* Enter */ if (s->text_len < EDITOR_BUF_SIZE - 1) { for (int i = s->text_len; i > s->cursor_pos; i--) s->text[i] = s->text[i-1]; s->text[s->cursor_pos] = '\n'; s->text_len++; s->cursor_pos++; s->modified = 1; } } else if (sc == 0x0E) { /* Backspace */ if (s->cursor_pos > 0) { for (int i = s->cursor_pos - 1; i < s->text_len - 1; i++) s->text[i] = s->text[i+1]; s->text_len--; s->cursor_pos--; s->modified = 1; } } else if (sc == 0x48) { /* Up */ if (s->cursor_line > 0) { int prev_start = editor_line_start(s, s->cursor_line - 1); int col = s->cursor_col; s->cursor_pos = prev_start; for (int i = 0; i < col && s->cursor_pos < s->text_len && s->text[s->cursor_pos] != '\n'; i++) s->cursor_pos++; } } else if (sc == 0x50) { /* Down */ if (s->cursor_line < 999) { int next_start = editor_line_start(s, s->cursor_line + 1); int col = s->cursor_col; s->cursor_pos = next_start; for (int i = 0; i < col && s->cursor_pos < s->text_len && s->text[s->cursor_pos] != '\n'; i++) s->cursor_pos++; } } else if (sc == 0x4B) { /* Left */ if (s->cursor_pos > 0) s->cursor_pos--; } else if (sc == 0x4D) { /* Right */ if (s->cursor_pos < s->text_len) s->cursor_pos++; } else if (sc == 0x47) { /* Home */ s->cursor_pos = editor_line_start(s, s->cursor_line); } else if (sc == 0x4F) { /* End */ s->cursor_pos = editor_line_start(s, s->cursor_line); while (s->cursor_pos < s->text_len && s->text[s->cursor_pos] != '\n') s->cursor_pos++; } else { char c = scan_to_ascii(sc, ev->shift); if (c && c >= 32 && c <= 126 && s->text_len < EDITOR_BUF_SIZE - 1) { for (int i = s->text_len; i > s->cursor_pos; i--) s->text[i] = s->text[i-1]; s->text[s->cursor_pos] = c; s->text_len++; s->cursor_pos++; s->modified = 1; } } editor_recalc_cursor(s); ctx->win->dirty = 1; (void)e0; } static void editor_on_draw(void *state, app_ctx *ctx) { editor_state *s = (editor_state *)state; int cx = ctx->client_x; int cy = ctx->client_y; int cw = ctx->client_w; int ch = ctx->client_h; int line_num_w = 5 * (int)DU_ASCII_STEP + (int)DU_SPACE_SM; int text_area_x = cx + line_num_w; int text_area_w = cw - line_num_w; int visible_rows = ch / (int)DU_ASCII_LINE_H; int visible_cols = text_area_w / (int)DU_ASCII_STEP; /* 背景 */ du_fill_rect(&g_fb, cx, cy, cw, ch, DS_DARK_BG_SECONDARY); /* 自动滚动 */ if (s->cursor_line < s->scroll_y) s->scroll_y = s->cursor_line; if (s->cursor_line >= s->scroll_y + visible_rows) s->scroll_y = s->cursor_line - visible_rows + 1; /* 渲染可见行 */ int line = 0; int pos = 0; for (int i = 0; i < s->text_len || line <= s->cursor_line; ) { if (line >= s->scroll_y + visible_rows) break; if (line >= s->scroll_y) { int screen_y = cy + (line - s->scroll_y) * (int)DU_ASCII_LINE_H; /* 行号 */ char ln[8]; ln[0] = '0' + ((line+1)/100)%10; ln[1] = '0' + ((line+1)/10)%10; ln[2] = '0' + (line+1)%10; ln[3] = 0; du_draw_string(&g_fb, ln, cx + 2, screen_y, DS_DARK_TEXT_DIM, DS_DARK_BG_SECONDARY, DU_ASCII_STEP); /* 行号分隔线 */ du_fill_rect(&g_fb, cx + line_num_w - 2, screen_y, 1, (int)DU_ASCII_CELL_H, DS_DARK_DIVIDER); /* 行文本 */ int col = 0; while (pos < s->text_len && s->text[pos] != '\n' && col < visible_cols) { du_draw_char(&g_fb, s->text[pos], text_area_x + col * (int)DU_ASCII_STEP, screen_y, DS_DARK_TEXT_PRIMARY, DS_DARK_BG_SECONDARY); col++; pos++; } if (pos < s->text_len && s->text[pos] == '\n') pos++; } else { while (pos < s->text_len && s->text[pos] != '\n') pos++; if (pos < s->text_len) pos++; } line++; if (pos >= s->text_len && line > s->cursor_line) break; } /* 光标 */ if (s->cursor_line >= s->scroll_y && s->cursor_line < s->scroll_y + visible_rows) { int cursor_y = cy + (s->cursor_line - s->scroll_y) * (int)DU_ASCII_LINE_H; int cursor_x = text_area_x + s->cursor_col * (int)DU_ASCII_STEP; du_fill_rect(&g_fb, cursor_x, cursor_y, 2, (int)DU_ASCII_CELL_H, DS_DARK_CURSOR); } /* 状态栏 */ int status_y = cy + ch - 20; du_fill_rect(&g_fb, cx, status_y, cw, 20, DP_ABYSS_800); char status[64]; int sp = 0; /* 行:列 */ const char *p1 = "L:"; while(*p1) status[sp++] = *p1++; status[sp++] = '0' + (s->cursor_line+1)/10%10; status[sp++] = '0' + (s->cursor_line+1)%10; const char *p2 = " C:"; while(*p2) status[sp++] = *p2++; status[sp++] = '0' + (s->cursor_col+1)/10%10; status[sp++] = '0' + (s->cursor_col+1)%10; if (s->modified) { const char *m = " *"; while(*m) status[sp++] = *m++; } status[sp] = 0; du_draw_string(&g_fb, status, cx + 4, status_y + 1, DS_DARK_TEXT_DIM, DP_ABYSS_800, DU_ASCII_STEP); } static void editor_on_destroy(void *state) { (void)state; } /* ============================================================ * 内置应用：计算器 (Calculator) * ============================================================ */ typedef struct { char display[32]; int display_len; i64 accumulator; i64 current; int op; /* 0=none, 1=+, 2=-, 3=*, 4=/ */ int new_number; } calc_state; static void calc_update_display(calc_state *s) { s->display_len = 0; i64 val = s->current; if (val < 0) { s->display[s->display_len++] = '-'; val = -val; } if (val == 0) { s->display[s->display_len++] = '0'; } else { char tmp[20]; int tl = 0; while (val > 0) { tmp[tl++] = '0' + (int)(val % 10); val /= 10; } for (int i = tl-1; i >= 0; i--) s->display[s->display_len++] = tmp[i]; } s->display[s->display_len] = 0; } static void *calc_on_create(app_ctx *ctx) { calc_state *s = (calc_state *)0x6000000; s->accumulator = 0; s->current = 0; s->op = 0; s->new_number = 1; calc_update_display(s); const char *t = "Calculator"; for (int i = 0; t[i] && i < 47; i++) ctx->win->title[i] = t[i]; return s; } static void calc_on_event(void *state, app_ctx *ctx, desktop_event *ev) { calc_state *s = (calc_state *)state; if (ev->type != EV_KEY_DOWN) return; char c = scan_to_ascii(ev->scancode, ev->shift); if (c >= '0' && c <= '9') { if (s->new_number) { s->current = 0; s->new_number = 0; } s->current = s->current * 10 + (c - '0'); } else if (c == '+') { s->accumulator = s->current; s->op = 1; s->new_number = 1; } else if (c == '-') { s->accumulator = s->current; s->op = 2; s->new_number = 1; } else if (c == '*') { s->accumulator = s->current; s->op = 3; s->new_number = 1; } else if (c == '/') { s->accumulator = s->current; s->op = 4; s->new_number = 1; } else if (c == '=' || c == '\n') { switch (s->op) { case 1: s->current = s->accumulator + s->current; break; case 2: s->current = s->accumulator - s->current; break; case 3: s->current = s->accumulator * s->current; break; case 4: s->current = (s->current != 0) ? s->accumulator / s->current : 0; break; } s->op = 0; s->new_number = 1; } else if (c == 'c' || c == 'C') { s->current = 0; s->accumulator = 0; s->op = 0; s->new_number = 1; } calc_update_display(s); ctx->win->dirty = 1; } static void calc_on_draw(void *state, app_ctx *ctx) { calc_state *s = (calc_state *)state; int cx = ctx->client_x; int cy = ctx->client_y; int cw = ctx->client_w; int ch = ctx->client_h; du_fill_rect(&g_fb, cx, cy, cw, ch, DS_DARK_BG_SECONDARY); /* 显示屏 */ int disp_h = 40; du_fill_rounded_rect(&g_fb, cx + 8, cy + 8, cw - 16, disp_h, DP_ABYSS_900, DU_RADIUS_MD); du_rect_outline(&g_fb, cx + 8, cy + 8, cw - 16, disp_h, DS_DARK_BORDER, DU_RADIUS_MD); /* 数字右对齐 */ int text_x = cx + cw - 16 - s->display_len * (int)DU_ASCII_STEP - 8; du_draw_string(&g_fb, s->display, text_x, cy + 16, DS_DARK_TEXT_PRIMARY, DP_ABYSS_900, DU_ASCII_STEP); /* 按钮网格 4×4 */ const char *btn_labels[] = { "C", "+/-", "%", "/", "7", "8", "9", "*", "4", "5", "6", "-", "1", "2", "3", "+", "0", ".", "=", 0 }; int btn_w = (cw - 16 - 12) / 4; int btn_h = 32; int btn_y = cy + 8 + disp_h + 8; for (int i = 0; i < 19; i++) { int row = i / 4, col = i % 4; int bx = cx + 8 + col * (btn_w + 3); int by = btn_y + row * (btn_h + 3); if (by + btn_h > cy + ch - 4) break; u32 bg = (i < 4) ? DP_ABYSS_600 : (i % 4 == 3) ? DS_DARK_ACCENT : (i == 18) ? DP_SUCCESS : DP_ABYSS_700; du_fill_rounded_rect(&g_fb, bx, by, btn_w, btn_h, bg, DU_RADIUS_SM); du_draw_string(&g_fb, btn_labels[i], bx + (btn_w - 1*(int)DU_ASCII_STEP)/2, by + (btn_h - (int)DU_ASCII_CELL_H)/2, DS_DARK_TEXT_PRIMARY, bg, DU_ASCII_STEP); } } static void calc_on_destroy(void *state) { (void)state; } /* ============================================================ * 应用注册 * ============================================================ */ static void register_apps(void) { /* 0: Terminal */ g_apps[0] = (app_descriptor){ "bash", "Terminal", 640, 440, bash_on_create, bash_on_event, bash_on_draw, bash_on_destroy }; g_app_count++; /* 1: Editor */ g_apps[1] = (app_descriptor){ "editor", "Editor", 600, 450, editor_on_create, editor_on_event, editor_on_draw, editor_on_destroy }; g_app_count++; /* 2: File Manager */ g_apps[2] = (app_descriptor){ "fileman", "Files", 500, 400, 0, 0, 0, 0 /* placeholder */ }; g_app_count++; /* 3: Calculator */ g_apps[3] = (app_descriptor){ "calc", "Calculator", 280, 400, calc_on_create, calc_on_event, calc_on_draw, calc_on_destroy }; g_app_count++; } static void setup_desktop_icons(void) { int start_x = (int)g_fb_w - DESKTOP_ICON_W - ICON_GUTTER_X; int y = ICON_GUTTER_Y; for (int i = 0; i < g_app_count; i++) { if (!g_apps[i].on_create) continue; g_icons[g_icon_count].app_id = i; g_icons[g_icon_count].x = start_x; g_icons[g_icon_count].y = y; g_icons[g_icon_count].label = g_apps[i].display_name; g_icon_count++; y += DESKTOP_ICON_H; } } /* ============================================================ * 应用启动 * ============================================================ */ static void launch_app(int app_id) { if (app_id < 0 || app_id >= g_app_count) return; app_descriptor *app = &g_apps[app_id]; if (!app->on_create) return; /* 计算窗口位置（居中偏移） */ int wx = 80 + g_win_count * 30; int wy = 40 + g_win_count * 30; if (wx + (int)app->default_w > (int)g_fb_w - 20) wx = 80; if (wy + (int)app->default_h > (int)g_fb_h - TASKBAR_H - 20) wy = 40; desktop_window *win = win_create(app_id, app->display_name, wx, wy, (int)app->default_w, (int)app->default_h); if (!win) return; /* 构建应用上下文 */ app_ctx ctx; ctx.fb = &g_fb; ctx.win = win; ctx.client_x = win->x + BORDER_W; ctx.client_y = win->y + TITLEBAR_H; ctx.client_w = win->w - 2 * BORDER_W; ctx.client_h = win->h - TITLEBAR_H - BORDER_W; ctx.should_exit = 0; ctx.block_read = g_block_read; ctx.kernel_api = g_kernel_api; win->app_state = app->on_create(&ctx); win->dirty = 1; slog("app launched"); } /* ============================================================ * 全屏重绘 * ============================================================ */ static void redraw_all(void) { /* 渐变背景 */ du_fill_bg_gradient(&g_fb, DP_ABYSS_900, DP_ABYSS_800); /* 桌面图标 */ draw_desktop_icons(); /* 窗口（从底到顶） */ for (int i = 0; i < g_win_count; i++) { desktop_window *w = &g_windows[i]; if (w->minimized || !w->visible) continue; /* 窗口客户区背景 */ int cx = w->x + BORDER_W; int cy = w->y + TITLEBAR_H; int cw = w->w - 2 * BORDER_W; int ch = w->h - TITLEBAR_H - BORDER_W; /* 调用应用绘制 */ if (w->app_id >= 0 && w->app_id < g_app_count && g_apps[w->app_id].on_draw && w->app_state) { app_ctx ctx; ctx.fb = &g_fb; ctx.win = w; ctx.client_x = cx; ctx.client_y = cy; ctx.client_w = cw; ctx.client_h = ch; ctx.should_exit = 0; ctx.block_read = g_block_read; ctx.kernel_api = g_kernel_api; g_apps[w->app_id].on_draw(w->app_state, &ctx); } /* 窗口装饰（在应用内容之上） */ draw_window_frame(w); } /* 任务栏 */ draw_taskbar(); /* 鼠标光标 */ cursor_save_bg(g_mouse_x, g_mouse_y); cursor_draw(g_mouse_x, g_mouse_y); } /* ============================================================ * 主循环 * ============================================================ */ __attribute__((visibility("default"))) void dsk_entry(const dsk_boot_context *ctx) { __asm__ volatile("cli"); slog("boot"); if (!ctx || ctx->magic != 0x44534B31424F4F54ULL) { slog("bad context"); for(;;) __asm__("hlt"); } g_fb_addr = ctx->framebuffer_address; g_fb_w = ctx->framebuffer_width; g_fb_h = ctx->framebuffer_height; g_fb_pitch = ctx->framebuffer_pitch; g_kernel_api = (const void *)ctx->dkm_kernel_api; g_block_read = (desktop_block_read_fn)(*(u64 *)(ctx->dkm_kernel_api + 0xA8)); du_context_init(&g_fb, g_fb_addr, g_fb_w, g_fb_h, g_fb_pitch); /* 初始化 PS/2 鼠标 */ ps2_mouse_init(); /* 注册应用 */ register_apps(); setup_desktop_icons(); /* 初始绘制 */ redraw_all(); slog("desktop ready"); /* 主事件循环 */ for (;;) { int need_redraw = 0; g_mouse_has_pkt = 0; /* 轮询 PS/2 鼠标 */ if (ps2_mouse_poll()) { need_redraw = 1; /* 拖拽处理 */ if (g_dragging && g_drag_win >= 0) { desktop_window *w = win_find(g_drag_win); if (w) { w->x = g_mouse_x - g_drag_off_x; w->y = g_mouse_y - g_drag_off_y; } } /* 鼠标点击事件 */ if (g_mouse_btn) { /* 检查任务栏点击 */ int tb_y = (int)g_fb_h - TASKBAR_H; if (g_mouse_y >= tb_y) { /* 快速启动图标 */ int qx = 64; for (int i = 0; i < g_app_count && i < 4; i++) { int icon_x = qx + i * 40; if (g_mouse_x >= icon_x && g_mouse_x < icon_x + 40) { launch_app(i); need_redraw = 1; break; } } } else { /* 窗口命中测试 */ desktop_window *hit = win_find_at(g_mouse_x, g_mouse_y); if (hit) { win_bring_to_front(hit); /* 取消其他焦点 */ for (int i = 0; i < g_win_count; i++) g_windows[i].focused = (g_windows[i].id == hit->id); g_focused_win = hit->id; /* 检查关闭按钮 */ if (win_hit_close_btn(hit, g_mouse_x, g_mouse_y)) { win_destroy(hit); need_redraw = 1; } /* 检查标题栏拖拽 */ else if (win_hit_titlebar(hit, g_mouse_x, g_mouse_y)) { g_dragging = 1; g_drag_win = hit->id; g_drag_off_x = g_mouse_x - hit->x; g_drag_off_y = g_mouse_y - hit->y; } /* 传递鼠标事件给应用 */ else if (hit->app_id >= 0 && g_apps[hit->app_id].on_event && hit->app_state) { desktop_event dev; dev.type = EV_MOUSE_DOWN; dev.mx = g_mouse_x; dev.my = g_mouse_y; dev.button = 0; app_ctx actx; actx.fb = &g_fb; actx.win = hit; actx.client_x = hit->x + BORDER_W; actx.client_y = hit->y + TITLEBAR_H; actx.client_w = hit->w - 2*BORDER_W; actx.client_h = hit->h - TITLEBAR_H - BORDER_W; actx.should_exit = 0; actx.block_read = g_block_read; actx.kernel_api = g_kernel_api; g_apps[hit->app_id].on_event(hit->app_state, &actx, &dev); } } else { /* 桌面图标点击 */ for (int i = 0; i < g_icon_count; i++) { int ix = g_icons[i].x, iy = g_icons[i].y; if (g_mouse_x >= ix && g_mouse_x < ix + 32 && g_mouse_y >= iy && g_mouse_y < iy + 32) { launch_app(g_icons[i].app_id); need_redraw = 1; break; } } } } } else { if (g_dragging) { g_dragging = 0; g_drag_win = -1; } } } /* 轮询 PS/2 键盘 */ { u8 st = inb(0x64); if ((st & 1) && !(st & 0x20)) { u8 data = inb(0x60); u8 sc = data; if (sc == 0xE0) { g_e0 = 1; goto next; } if (sc == 0x2A || sc == 0x36) { g_shift = 1; goto next; } if (sc == 0xAA || sc == 0xB6) { g_shift = 0; goto next; } if (sc & 0x80) { g_e0 = 0; goto next; } /* 发送键盘事件到焦点窗口 */ if (g_focused_win >= 0) { desktop_window *fw = win_find(g_focused_win); if (fw && fw->app_id >= 0 && g_apps[fw->app_id].on_event && fw->app_state) { desktop_event dev; dev.type = EV_KEY_DOWN; dev.mx = g_mouse_x; dev.my = g_mouse_y; dev.button = 0; dev.scancode = sc; dev.shift = g_shift; dev.ctrl = g_ctrl; dev.alt = g_alt; app_ctx actx; actx.fb = &g_fb; actx.win = fw; actx.client_x = fw->x + BORDER_W; actx.client_y = fw->y + TITLEBAR_H; actx.client_w = fw->w - 2*BORDER_W; actx.client_h = fw->h - TITLEBAR_H - BORDER_W; actx.should_exit = 0; actx.block_read = g_block_read; actx.kernel_api = g_kernel_api; g_apps[fw->app_id].on_event(fw->app_state, &actx, &dev); need_redraw = 1; } } g_e0 = 0; } } next: if (need_redraw) { cursor_restore_bg(); redraw_all(); } __asm__("pause"); } }