--- lbbs/src/screen.c 2025/05/18 08:53:21 1.63 +++ lbbs/src/screen.c 2025/05/30 00:20:53 1.80 @@ -22,7 +22,6 @@ #include "io.h" #include "file_loader.h" #include -#include #include #include #include @@ -32,8 +31,15 @@ #include #include +#define _POSIX_C_SOURCE 200809L +#include + #define ACTIVE_BOARD_HEIGHT 8 +#define STR_TOP_LEFT_MAX_LEN 40 +#define STR_TOP_MIDDLE_MAX_LEN 20 +#define STR_TOP_RIGHT_MAX_LEN 20 + void moveto(int row, int col) { if (row >= 0) @@ -216,8 +222,8 @@ int get_data(int row, int col, char *pro int len; moveto(row, col); - prints(prompt); - prints(buffer); + prints("%s", prompt); + prints("%s", buffer); iflush(); len = _str_input(buffer, buf_size, echo_mode); @@ -225,27 +231,17 @@ int get_data(int row, int col, char *pro return len; } -int display_file_ex(const char *filename, int begin_line, int wait) +int display_data(const void *p_data, long line_total, const long *p_line_offsets, int begin_line, int wait) { static int show_help = 1; char buffer[LINE_BUFFER_LEN]; int ch = KEY_NULL; int input_ok, line, max_lines; long int line_current = 0; - const void *p_shm; - size_t data_len; - long line_total; - const void *p_data; - const long *p_line_offsets; long int len; long int percentile; int loop; - - if ((p_shm = get_file_shm(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) - { - log_error("get_file_shm(%s) error\n", filename); - return KEY_NULL; - } + int eol, display_len; clrline(begin_line, SCREEN_ROWS); line = begin_line; @@ -280,10 +276,24 @@ int display_file_ex(const char *filename percentile = 100; } + snprintf(buffer, sizeof(buffer), + "\033[1;44;33m第\033[32m%ld\033[33m-\033[32m%ld\033[33m行 (\033[32m%ld%%\033[33m) │ " + "返回[\033[32m←\033[33m,\033[32mESC\033[33m] │ 移动[\033[32m↑\033[33m/\033[32m↓\033[33m/\033[32mPgUp\033[33m/\033[32mPgDn\033[33m] │ " + "帮助[\033[32mh\033[33m] │", + line_current - (line - 1) + 1, + MIN(line_current - (line - 1) + (SCREEN_ROWS - 2), line_total), + percentile); + + len = split_line(buffer, SCREEN_COLS, &eol, &display_len); + for (;display_len < SCREEN_COLS; display_len++) + { + buffer[len++] = ' '; + } + buffer[len] = '\0'; + strncat(buffer, "\033[m", sizeof(buffer) - 1 - strnlen(buffer, sizeof(buffer))); + moveto(SCREEN_ROWS, 0); - prints("\033[1;44;32m%s (%d%%)%s\033[33m │ 结束 ← │ ↑/↓/PgUp/PgDn 移动 │ ? 辅助说明 │ \033[m", - (percentile < 100 ? "下面还有喔" : "没有更多了"), percentile, - (percentile < 10 ? " " : (percentile < 100 ? " " : ""))); + prints("%s", buffer); iflush(); input_ok = 0; @@ -293,7 +303,7 @@ int display_file_ex(const char *filename input_ok = 1; switch (ch) { - // case KEY_NULL: + case KEY_NULL: case KEY_TIMEOUT: goto cleanup; case KEY_HOME: @@ -321,6 +331,7 @@ int display_file_ex(const char *filename break; case CR: igetch_reset(); + case KEY_SPACE: case KEY_DOWN: if (line_current + ((SCREEN_ROWS - 2) - (line - 1)) >= line_total) // Reach bottom { @@ -334,7 +345,6 @@ int display_file_ex(const char *filename prints("\033[S"); // Scroll up 1 line break; case KEY_PGUP: - case Ctrl('B'): if (line_current - line < 0) // Reach top { break; @@ -348,10 +358,7 @@ int display_file_ex(const char *filename max_lines = SCREEN_ROWS - 1; clrline(begin_line, SCREEN_ROWS); break; - case KEY_RIGHT: case KEY_PGDN: - case Ctrl('F'): - case KEY_SPACE: if (line_current + (SCREEN_ROWS - 2) - (line - 1) >= line_total) // Reach bottom { break; @@ -365,14 +372,11 @@ int display_file_ex(const char *filename max_lines = SCREEN_ROWS - 1; clrline(begin_line, SCREEN_ROWS); break; + case KEY_ESC: case KEY_LEFT: - case 'q': - case 'Q': loop = 0; break; - case '?': case 'h': - case 'H': if (!show_help) { break; @@ -380,7 +384,7 @@ int display_file_ex(const char *filename // Display help information show_help = 0; - display_file_ex(DATA_READ_HELP, begin_line, 1); + display_file(DATA_READ_HELP, begin_line, 1); show_help = 1; // Refresh after display help information @@ -422,35 +426,61 @@ cleanup: return ch; } -int show_top(const char *status) +int display_file(const char *filename, int begin_line, int wait) { - char status_f[21]; - int truncate; - int status_len; - int section_name_len; - int len; - - strncpy(status_f, status, sizeof(status_f) - 1); - status_f[sizeof(status_f) - 1] = '\0'; + int ch = KEY_NULL; + const void *p_shm; + size_t data_len; + long line_total; + const void *p_data; + const long *p_line_offsets; - len = split_line(status_f, 20, &truncate, &status_len); - if (truncate) + if ((p_shm = get_file_shm_readonly(filename, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) { - log_error("Status string is truncated\n"); - status_f[len] = '\0'; + log_error("get_file_shm(%s) error\n", filename); + return KEY_NULL; } - len = split_line(BBS_current_section_name, 20, &truncate, §ion_name_len); - if (truncate) + ch = display_data(p_data, line_total, p_line_offsets, begin_line, wait); + + if (detach_file_shm(p_shm) < 0) { - log_error("Section name is truncated\n"); + log_error("detach_file_shm(%s) error\n", filename); } + return ch; +} + +int show_top(const char *str_left, const char *str_middle, const char *str_right) +{ + char str_left_f[STR_TOP_LEFT_MAX_LEN + 1]; + char str_middle_f[STR_TOP_MIDDLE_MAX_LEN + 1]; + char str_right_f[STR_TOP_RIGHT_MAX_LEN + 1]; + int str_left_len; + int str_middle_len; + int str_right_len; + int eol; + int len; + + strncpy(str_left_f, str_left, sizeof(str_left_f) - 1); + str_left_f[sizeof(str_left_f) - 1] = '\0'; + len = split_line(str_left_f, STR_TOP_LEFT_MAX_LEN, &eol, &str_left_len); + str_left_f[len] = '\0'; + + strncpy(str_middle_f, str_middle, sizeof(str_middle_f) - 1); + str_middle_f[sizeof(str_middle_f) - 1] = '\0'; + len = split_line(str_middle, STR_TOP_MIDDLE_MAX_LEN, &eol, &str_middle_len); + str_middle_f[len] = '\0'; + + strncpy(str_right_f, str_right, sizeof(str_right_f) - 1); + str_right_f[sizeof(str_right_f) - 1] = '\0'; + len = split_line(str_right, STR_TOP_RIGHT_MAX_LEN, &eol, &str_right_len); + str_right_f[len] = '\0'; + moveto(1, 0); clrtoeol(); - prints("\033[1;44;33m%s\033[37m%*s%*s\033[33m 讨论区 [%s]\033[m", - status_f, 32, BBS_name, 26, "", BBS_current_section_name); - iflush(); + prints("\033[1;44;33m%s\033[37m%*s\033[33m%*s\033[m", + str_left_f, 44 - str_left_len, str_middle_f, 36, str_right_f); return 0; } @@ -460,21 +490,21 @@ int show_bottom(const char *msg) char str_time[LINE_BUFFER_LEN]; time_t time_online; struct tm *tm_online; - char msg_f[21]; - int truncate; + char msg_f[LINE_BUFFER_LEN]; + int eol; int msg_len; int len; int len_username; get_time_str(str_time, sizeof(str_time)); - strncpy(msg_f, msg, sizeof(msg_f) - 1); - msg_f[sizeof(msg_f) - 1] = '\0'; - - len = split_line(msg_f, 20, &truncate, &msg_len); - if (truncate) - { - log_error("Status string is truncated\n"); + msg_f[0] = '\0'; + msg_len = 0; + if (msg != NULL) + { + strncpy(msg_f, msg, sizeof(msg_f) - 1); + msg_f[sizeof(msg_f) - 1] = '\0'; + len = split_line(msg_f, 23, &eol, &msg_len); msg_f[len] = '\0'; } @@ -485,11 +515,10 @@ int show_bottom(const char *msg) moveto(SCREEN_ROWS, 0); clrtoeol(); - prints("\033[1;44;33m[\033[36m%s\033[33m]%*s%*s帐号[\033[36m%s\033[33m]" - "[\033[36m%1d\033[33m:\033[36m%2d\033[33m:\033[36m%2d\033[33m]\033[m", - str_time, 21, msg_f, 13 - len_username, "", BBS_username, + prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m帐号[\033[36m%s\033[33m]" + "[\033[36m%1d\033[33m天\033[36m%2d\033[33m时\033[36m%2d\033[33m分]\033[m", + str_time, msg_f, 35 - msg_len - len_username, "", BBS_username, tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min); - iflush(); return 0; } @@ -503,19 +532,32 @@ int show_active_board() static const void *p_data; static const long *p_line_offsets; + static time_t t_last_show = 0; + static int line_last = 0; + char buffer[LINE_BUFFER_LEN]; long int len; if (p_shm == NULL) { - if ((p_shm = get_file_shm(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) + if ((p_shm = get_file_shm_readonly(DATA_ACTIVE_BOARD, &data_len, &line_total, &p_data, &p_line_offsets)) == NULL) { log_error("get_file_shm(%s) error\n", DATA_ACTIVE_BOARD); return KEY_NULL; } } - clrline(3, 2 + ACTIVE_BOARD_HEIGHT); + if (time(0) - t_last_show >= 10) + { + line_last = line_current; + t_last_show = time(0); + } + else + { + line_current = line_last; + } + + clrline(2, 2 + ACTIVE_BOARD_HEIGHT); for (int i = 0; i < ACTIVE_BOARD_HEIGHT; i++) { @@ -540,7 +582,6 @@ int show_active_board() break; } } - iflush(); return 0; }