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/*************************************************************************** |
/* SPDX-License-Identifier: GPL-3.0-or-later */ |
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screen.c - description |
/* |
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------------------- |
* screen |
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Copyright : (C) 2004-2025 by Leaflet |
* - advanced telnet-based user interactive input / output features |
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Email : leaflet@leafok.com |
* |
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***************************************************************************/ |
* Copyright (C) 2004-2025 Leaflet <leaflet@leafok.com> |
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*/ |
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/*************************************************************************** |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 3 of the License, or * |
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* (at your option) any later version. * |
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* * |
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***************************************************************************/ |
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#include "bbs.h" |
#include "bbs.h" |
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#include "common.h" |
#include "common.h" |
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#include <sys/shm.h> |
#include <sys/shm.h> |
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#include <sys/types.h> |
#include <sys/types.h> |
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#define ACTIVE_BOARD_HEIGHT 8 |
const char CTRL_SEQ_CLR_LINE[] = "\033[K"; |
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#define STR_TOP_LEFT_MAX_LEN 80 |
static const int ACTIVE_BOARD_HEIGHT = 8; |
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#define STR_TOP_MIDDLE_MAX_LEN 40 |
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#define STR_TOP_RIGHT_MAX_LEN 80 |
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static const char *get_time_str(char *s, size_t len) |
static const int STR_TOP_LEFT_MAX_LEN = 80; |
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static const int STR_TOP_MIDDLE_MAX_LEN = 40; |
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static const int STR_TOP_RIGHT_MAX_LEN = 80; |
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static size_t get_time_str(char *s, size_t len) |
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{ |
{ |
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static const char *weekday[] = { |
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"天", "一", "二", "三", "四", "五", "六"}; |
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time_t curtime; |
time_t curtime; |
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struct tm local_tm; |
struct tm local_tm; |
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time(&curtime); |
time(&curtime); |
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localtime_r(&curtime, &local_tm); |
localtime_r(&curtime, &local_tm); |
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size_t j = strftime(s, len, "%b %d %H:%M 星期", &local_tm); |
size_t j = strftime(s, len, "%m/%d %H:%M %Z", &local_tm); |
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if (j == 0 || j + strlen(weekday[local_tm.tm_wday]) + 1 > len) |
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{ |
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return NULL; |
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} |
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strncat(s, weekday[local_tm.tm_wday], len - 1 - j); |
return j; |
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return s; |
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} |
} |
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void moveto(int row, int col) |
void moveto(int row, int col) |
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iflush(); |
iflush(); |
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} |
} |
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static int _str_input(char *buffer, int buf_size, int max_display_len, int echo_mode) |
static int _str_input(char *buffer, int buf_size, int max_display_len, enum io_echo_t echo_mode) |
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{ |
{ |
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int ch; |
int ch; |
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int offset = 0; |
int offset = 0; |
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while (!SYS_server_exit) |
while (!SYS_server_exit) |
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{ |
{ |
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ch = igetch_t(MIN(MAX_DELAY_TIME, 60)); |
ch = igetch_t(MIN(BBS_max_user_idle_time, 60)); |
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if (ch == CR) |
if (ch == CR) |
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{ |
{ |
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offset--; |
offset--; |
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if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
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{ |
{ |
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while (offset > 0 && (buffer[offset] & 0b11000000) != 0b11000000) |
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
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{ |
{ |
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offset--; |
offset--; |
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} |
} |
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else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
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{ |
{ |
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str_len = 0; |
str_len = 0; |
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c = (char)(ch & 0b11110000); |
c = (char)(ch & 0xf0); |
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while (c & 0b10000000) |
while (c & 0x80) |
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{ |
{ |
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input_str[str_len] = (char)(ch - 256); |
input_str[str_len] = (char)(ch - 256); |
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str_len++; |
str_len++; |
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c = (c & 0b01111111) << 1; |
c = (c & 0x7f) << 1; |
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if ((c & 0b10000000) == 0) // Input completed |
if ((c & 0x80) == 0) // Input completed |
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{ |
{ |
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break; |
break; |
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} |
} |
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return offset; |
return offset; |
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} |
} |
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int str_input(char *buffer, int buf_size, int echo_mode) |
int str_input(char *buffer, int buf_size, enum io_echo_t echo_mode) |
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{ |
{ |
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int len; |
int len; |
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iflush(); |
iflush(); |
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return len; |
return len; |
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}; |
} |
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int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int max_display_len) |
int get_data(int row, int col, char *prompt, char *buffer, int buf_size, int max_display_len) |
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{ |
{ |
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while (!SYS_server_exit) |
while (!SYS_server_exit) |
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{ |
{ |
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ch = igetch_t(MIN(MAX_DELAY_TIME, 60)); |
ch = igetch_t(MIN(BBS_max_user_idle_time, 60)); |
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if (ch == CR) |
if (ch == CR) |
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{ |
{ |
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offset--; |
offset--; |
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if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
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{ |
{ |
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while (offset > 0 && (buffer[offset] & 0b11000000) != 0b11000000) |
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
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{ |
{ |
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str_len++; |
str_len++; |
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offset--; |
offset--; |
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if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
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{ |
{ |
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str_len = 0; |
str_len = 0; |
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c = (char)(buffer[offset] & 0b11110000); |
c = (char)(buffer[offset] & 0xf0); |
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while (c & 0b10000000) |
while (c & 0x80) |
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{ |
{ |
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str_len++; |
str_len++; |
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c = (c & 0b01111111) << 1; |
c = (c & 0x7f) << 1; |
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} |
} |
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display_len--; |
display_len--; |
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} |
} |
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offset--; |
offset--; |
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if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
if (buffer[offset] < 0 || buffer[offset] > 127) // UTF8 |
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{ |
{ |
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while (offset > 0 && (buffer[offset] & 0b11000000) != 0b11000000) |
while (offset > 0 && (buffer[offset] & 0xc0) != 0xc0) |
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{ |
{ |
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str_len++; |
str_len++; |
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offset--; |
offset--; |
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str_len = 0; |
str_len = 0; |
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if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
if ((buffer[offset] & 0x80) == 0x80) // head of multi-byte character |
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{ |
{ |
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c = (char)(buffer[offset] & 0b11110000); |
c = (char)(buffer[offset] & 0xf0); |
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while (c & 0b10000000) |
while (c & 0x80) |
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{ |
{ |
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str_len++; |
str_len++; |
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c = (c & 0b01111111) << 1; |
c = (c & 0x7f) << 1; |
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} |
} |
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col_cur++; |
col_cur++; |
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} |
} |
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else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
else if ((ch & 0xff80) == 0x80) // head of multi-byte character |
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{ |
{ |
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str_len = 0; |
str_len = 0; |
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c = (char)(ch & 0b11110000); |
c = (char)(ch & 0xf0); |
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while (c & 0b10000000) |
while (c & 0x80) |
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{ |
{ |
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input_str[str_len] = (char)(ch - 256); |
input_str[str_len] = (char)(ch - 256); |
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str_len++; |
str_len++; |
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c = (c & 0b01111111) << 1; |
c = (c & 0x7f) << 1; |
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if ((c & 0b10000000) == 0) // Input completed |
if ((c & 0x80) == 0) // Input completed |
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{ |
{ |
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break; |
break; |
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} |
} |
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input_ok = 0; |
input_ok = 0; |
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while (!SYS_server_exit && !input_ok) |
while (!SYS_server_exit && !input_ok) |
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{ |
{ |
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ch = igetch_t(MAX_DELAY_TIME); |
ch = igetch_t(BBS_max_user_idle_time); |
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input_ok = 1; |
input_ok = 1; |
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if (ch != KEY_NULL && ch != KEY_TIMEOUT) |
if (ch != KEY_NULL && ch != KEY_TIMEOUT) |
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output_end_row = SCREEN_ROWS - 1; // Legacy Fterm only works with this line |
output_end_row = SCREEN_ROWS - 1; // Legacy Fterm only works with this line |
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break; |
break; |
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case CR: |
case CR: |
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case KEY_SPACE: |
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case KEY_DOWN: |
case KEY_DOWN: |
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if (line_current + (screen_row_total - (output_current_row - screen_begin_row)) >= display_line_total) // Reach end |
if (line_current + (screen_row_total - (output_current_row - screen_begin_row)) >= display_line_total) // Reach end |
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{ |
{ |
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output_end_row = SCREEN_ROWS - 1; |
output_end_row = SCREEN_ROWS - 1; |
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clrline(output_current_row, SCREEN_ROWS); |
clrline(output_current_row, SCREEN_ROWS); |
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break; |
break; |
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case KEY_SPACE: |
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case KEY_PGDN: |
case KEY_PGDN: |
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if (line_current + screen_row_total - (output_current_row - screen_begin_row) >= display_line_total) // Reach end |
if (line_current + screen_row_total - (output_current_row - screen_begin_row) >= display_line_total) // Reach end |
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{ |
{ |
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int show_bottom(const char *msg) |
int show_bottom(const char *msg) |
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{ |
{ |
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char str_time[LINE_BUFFER_LEN]; |
char str_time[LINE_BUFFER_LEN]; |
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int len_str_time; |
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time_t time_online; |
time_t time_online; |
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struct tm *tm_online; |
struct tm *tm_online; |
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char msg_f[LINE_BUFFER_LEN]; |
char msg_f[LINE_BUFFER_LEN]; |
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int eol; |
int eol; |
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int msg_len; |
int len_msg; |
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int len; |
int len; |
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int len_username; |
int len_username; |
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char str_tm_online[LINE_BUFFER_LEN]; |
char str_tm_online[LINE_BUFFER_LEN]; |
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get_time_str(str_time, sizeof(str_time)); |
len_str_time = (int)get_time_str(str_time, sizeof(str_time)); |
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msg_f[0] = '\0'; |
msg_f[0] = '\0'; |
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msg_len = 0; |
len_msg = 0; |
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if (msg != NULL) |
if (msg != NULL) |
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{ |
{ |
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strncpy(msg_f, msg, sizeof(msg_f) - 1); |
strncpy(msg_f, msg, sizeof(msg_f) - 1); |
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msg_f[sizeof(msg_f) - 1] = '\0'; |
msg_f[sizeof(msg_f) - 1] = '\0'; |
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len = split_line(msg_f, 23, &eol, &msg_len, 1); |
len = split_line(msg_f, 23, &eol, &len_msg, 1); |
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msg_f[len] = '\0'; |
msg_f[len] = '\0'; |
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} |
} |
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if (tm_online->tm_mday > 1) |
if (tm_online->tm_mday > 1) |
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{ |
{ |
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snprintf(str_tm_online, sizeof(str_tm_online), |
snprintf(str_tm_online, sizeof(str_tm_online), |
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"\033[36m%2d\033[33m天\033[36m%2d\033[33m时", |
"\033[36m%d\033[33md \033[36m%d\033[33m:\033[36m%.2d", |
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tm_online->tm_mday - 1, tm_online->tm_hour); |
tm_online->tm_mday - 1, tm_online->tm_hour, tm_online->tm_min); |
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} |
} |
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else |
else |
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{ |
{ |
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snprintf(str_tm_online, sizeof(str_tm_online), |
snprintf(str_tm_online, sizeof(str_tm_online), |
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"\033[36m%2d\033[33m时\033[36m%2d\033[33m分", |
"\033[36m%d\033[33m:\033[36m%.2d", |
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tm_online->tm_hour, tm_online->tm_min); |
tm_online->tm_hour, tm_online->tm_min); |
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} |
} |
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moveto(SCREEN_ROWS, 0); |
moveto(SCREEN_ROWS, 0); |
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clrtoeol(); |
clrtoeol(); |
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prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m帐号[\033[36m%s\033[33m][%s\033[33m]\033[m", |
prints("\033[1;44;33m时间[\033[36m%s\033[33m]%s%*s \033[33m用户[\033[36m%s\033[33m][%s\033[33m]\033[m", |
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str_time, msg_f, 38 - msg_len - len_username, "", BBS_username, str_tm_online); |
str_time, msg_f, 61 - len_str_time - len_msg - len_username, "", BBS_username, str_tm_online); |
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return 0; |
return 0; |
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} |
} |