// SPDX-License-Identifier: GPL-2.0/* * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com> * * Derived from menuconfig. */#include <xalloc.h>#include "nconf.h"#include "lkc.h" int attr_normal;int attr_main_heading;int attr_main_menu_box;int attr_main_menu_fore;int attr_main_menu_back;int attr_main_menu_grey;int attr_main_menu_heading;int attr_scrollwin_text;int attr_scrollwin_heading;int attr_scrollwin_box;int attr_dialog_text;int attr_dialog_menu_fore;int attr_dialog_menu_back;int attr_dialog_box;int attr_input_box;int attr_input_heading;int attr_input_text;int attr_input_field;int attr_function_text;int attr_function_highlight; #define COLOR_ATTR(_at, _fg, _bg, _hl) \ { .attr = &(_at), .has_color = true, .color_fg = _fg, .color_bg = _bg, .highlight = _hl }#define NO_COLOR_ATTR(_at, _hl) \ { .attr = &(_at), .has_color = false, .highlight = _hl }#define COLOR_DEFAULT -1 struct nconf_attr_param { int *attr; bool has_color; int color_fg; int color_bg; int highlight;}; static const struct nconf_attr_param color_theme_params[] = { COLOR_ATTR(attr_normal, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_heading, COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD | A_UNDERLINE), COLOR_ATTR(attr_main_menu_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_fore, COLOR_DEFAULT, COLOR_DEFAULT, A_REVERSE), COLOR_ATTR(attr_main_menu_back, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_grey, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_scrollwin_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_scrollwin_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_scrollwin_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_dialog_text, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_dialog_menu_fore, COLOR_RED, COLOR_DEFAULT, A_STANDOUT), COLOR_ATTR(attr_dialog_menu_back, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_dialog_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_input_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_input_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_input_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_input_field, COLOR_DEFAULT, COLOR_DEFAULT, A_UNDERLINE), COLOR_ATTR(attr_function_text, COLOR_YELLOW, COLOR_DEFAULT, A_REVERSE), COLOR_ATTR(attr_function_highlight, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), { /* sentinel */ }}; static const struct nconf_attr_param no_color_theme_params[] = { NO_COLOR_ATTR(attr_normal, A_NORMAL), NO_COLOR_ATTR(attr_main_heading, A_BOLD | A_UNDERLINE), NO_COLOR_ATTR(attr_main_menu_box, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_fore, A_STANDOUT), NO_COLOR_ATTR(attr_main_menu_back, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_grey, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_heading, A_BOLD), NO_COLOR_ATTR(attr_scrollwin_text, A_NORMAL), NO_COLOR_ATTR(attr_scrollwin_heading, A_BOLD), NO_COLOR_ATTR(attr_scrollwin_box, A_BOLD), NO_COLOR_ATTR(attr_dialog_text, A_NORMAL), NO_COLOR_ATTR(attr_dialog_menu_fore, A_STANDOUT), NO_COLOR_ATTR(attr_dialog_menu_back, A_NORMAL), NO_COLOR_ATTR(attr_dialog_box, A_BOLD), NO_COLOR_ATTR(attr_input_box, A_BOLD), NO_COLOR_ATTR(attr_input_heading, A_BOLD), NO_COLOR_ATTR(attr_input_text, A_NORMAL), NO_COLOR_ATTR(attr_input_field, A_UNDERLINE), NO_COLOR_ATTR(attr_function_text, A_REVERSE), NO_COLOR_ATTR(attr_function_highlight, A_BOLD), { /* sentinel */ }}; void set_colors(void){ const struct nconf_attr_param *p; int pair = 0; if (has_colors()) { start_color(); use_default_colors(); p = color_theme_params; } else { p = no_color_theme_params; } for (; p->attr; p++) { int attr = p->highlight; if (p->has_color) { pair++; init_pair(pair, p->color_fg, p->color_bg); attr |= COLOR_PAIR(pair); } *p->attr = attr; }} /* this changes the windows attributes !!! */void print_in_middle(WINDOW *win, int y, int width, const char *str, int attrs){ wattrset(win, attrs); mvwprintw(win, y, (width - strlen(str)) / 2, "%s", str);} int get_line_no(const char *text){ int i; int total = 1; if (!text) return 0; for (i = 0; text[i] != '\0'; i++) if (text[i] == '\n') total++; return total;} const char *get_line(const char *text, int line_no){ int i; int lines = 0; if (!text) return NULL; for (i = 0; text[i] != '\0' && lines < line_no; i++) if (text[i] == '\n') lines++; return text+i;} int get_line_length(const char *line){ int res = 0; while (*line != '\0' && *line != '\n') { line++; res++; } return res;} /* print all lines to the window. */void fill_window(WINDOW *win, const char *text){ int x, y; int total_lines = get_line_no(text); int i; getmaxyx(win, y, x); /* do not go over end of line */ total_lines = min(total_lines, y); for (i = 0; i < total_lines; i++) { const char *line = get_line(text, i); int len = min(get_line_length(line), x); mvwprintw(win, i, 0, "%.*s", len, line); }} /* get the message, and buttons. * each button must be a char* * return the selected button * * this dialog is used for 2 different things: * 1) show a text box, no buttons. * 2) show a dialog, with horizontal buttons */int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...){ va_list ap; char *btn; int btns_width = 0; int msg_lines = 0; int msg_width = 0; int total_width; int win_rows = 0; WINDOW *win; WINDOW *msg_win; WINDOW *menu_win; MENU *menu; ITEM *btns[btn_num+1]; int i, x, y; int res = -1; va_start(ap, btn_num); for (i = 0; i < btn_num; i++) { btn = va_arg(ap, char *); btns[i] = new_item(btn, ""); btns_width += strlen(btn)+1; } va_end(ap); btns[btn_num] = NULL; /* find the widest line of msg: */ msg_lines = get_line_no(msg); for (i = 0; i < msg_lines; i++) { const char *line = get_line(msg, i); int len = get_line_length(line); if (msg_width < len) msg_width = len; } total_width = max(msg_width, btns_width); /* place dialog in middle of screen */ y = (getmaxy(stdscr)-(msg_lines+4))/2; x = (getmaxx(stdscr)-(total_width+4))/2; /* create the windows */ if (btn_num > 0) win_rows = msg_lines+4; else win_rows = msg_lines+2; win = newwin(win_rows, total_width+4, y, x); keypad(win, TRUE); menu_win = derwin(win, 1, btns_width, win_rows-2, 1+(total_width+2-btns_width)/2); menu = new_menu(btns); msg_win = derwin(win, win_rows-2, msg_width, 1, 1+(total_width+2-msg_width)/2); set_menu_fore(menu, attr_dialog_menu_fore); set_menu_back(menu, attr_dialog_menu_back); wattrset(win, attr_dialog_box); box(win, 0, 0); /* print message */ wattrset(msg_win, attr_dialog_text); fill_window(msg_win, msg); set_menu_win(menu, win); set_menu_sub(menu, menu_win); set_menu_format(menu, 1, btn_num); menu_opts_off(menu, O_SHOWDESC); menu_opts_off(menu, O_SHOWMATCH); menu_opts_on(menu, O_ONEVALUE); menu_opts_on(menu, O_NONCYCLIC); set_menu_mark(menu, ""); post_menu(menu); touchwin(win); refresh_all_windows(main_window); while ((res = wgetch(win))) { switch (res) { case KEY_LEFT: menu_driver(menu, REQ_LEFT_ITEM); break; case KEY_RIGHT: menu_driver(menu, REQ_RIGHT_ITEM); break; case 9: /* TAB */ if (btn_num > 1) { /* cycle through buttons */ if (item_index(current_item(menu)) == btn_num - 1) menu_driver(menu, REQ_FIRST_ITEM); else menu_driver(menu, REQ_NEXT_ITEM); } break; case 10: /* ENTER */ case 27: /* ESCAPE */ case ' ': case KEY_F(F_BACK): case KEY_F(F_EXIT): break; } touchwin(win); refresh_all_windows(main_window); if (res == 10 || res == ' ') { res = item_index(current_item(menu)); break; } else if (res == 27 || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) { res = KEY_EXIT; break; } } unpost_menu(menu); free_menu(menu); for (i = 0; i < btn_num; i++) free_item(btns[i]); delwin(win); return res;} int dialog_inputbox(WINDOW *main_window, const char *title, const char *prompt, const char *init, char **resultp, int *result_len){ int prompt_lines = 0; int prompt_width = 0; WINDOW *win; WINDOW *prompt_win; WINDOW *form_win; PANEL *panel; int i, x, y, lines, columns, win_lines, win_cols; int res = -1; int cursor_position = strlen(init); int cursor_form_win; char *result = *resultp; getmaxyx(stdscr, lines, columns); if (strlen(init)+1 > *result_len) { *result_len = strlen(init)+1; *resultp = result = xrealloc(result, *result_len); } /* find the widest line of msg: */ prompt_lines = get_line_no(prompt); for (i = 0; i < prompt_lines; i++) { const char *line = get_line(prompt, i); int len = get_line_length(line); prompt_width = max(prompt_width, len); } if (title) prompt_width = max(prompt_width, strlen(title)); win_lines = min(prompt_lines+6, lines-2); win_cols = min(prompt_width+7, columns-2); prompt_lines = max(win_lines-6, 0); prompt_width = max(win_cols-7, 0); /* place dialog in middle of screen */ y = (lines-win_lines)/2; x = (columns-win_cols)/2; strncpy(result, init, *result_len); result[*result_len - 1] = '\0'; /* create the windows */ win = newwin(win_lines, win_cols, y, x); prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2); form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2); keypad(form_win, TRUE); wattrset(form_win, attr_input_field); wattrset(win, attr_input_box); box(win, 0, 0); wattrset(win, attr_input_heading); if (title) mvwprintw(win, 0, 3, "%s", title); /* print message */ wattrset(prompt_win, attr_input_text); fill_window(prompt_win, prompt); mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); cursor_form_win = min(cursor_position, prompt_width-1); mvwprintw(form_win, 0, 0, "%s", result + cursor_position-cursor_form_win); /* create panels */ panel = new_panel(win); /* show the cursor */ curs_set(1); touchwin(win); refresh_all_windows(main_window); while ((res = wgetch(form_win))) { int len = strlen(result); switch (res) { case 10: /* ENTER */ case 27: /* ESCAPE */ case KEY_F(F_HELP): case KEY_F(F_EXIT): case KEY_F(F_BACK): break; case 8: /* ^H */ case 127: /* ^? */ case KEY_BACKSPACE: if (cursor_position > 0) { memmove(&result[cursor_position-1], &result[cursor_position], len-cursor_position+1); cursor_position--; cursor_form_win--; len--; } break; case KEY_DC: if (cursor_position >= 0 && cursor_position < len) { memmove(&result[cursor_position], &result[cursor_position+1], len-cursor_position+1); len--; } break; case KEY_UP: case KEY_RIGHT: if (cursor_position < len) { cursor_position++; cursor_form_win++; } break; case KEY_DOWN: case KEY_LEFT: if (cursor_position > 0) { cursor_position--; cursor_form_win--; } break; case KEY_HOME: cursor_position = 0; cursor_form_win = 0; break; case KEY_END: cursor_position = len; cursor_form_win = min(cursor_position, prompt_width-1); break; default: if ((isgraph(res) || isspace(res))) { /* one for new char, one for '\0' */ if (len+2 > *result_len) { *result_len = len+2; *resultp = result = realloc(result, *result_len); } /* insert the char at the proper position */ memmove(&result[cursor_position+1], &result[cursor_position], len-cursor_position+1); result[cursor_position] = res; cursor_position++; cursor_form_win++; len++; } else { mvprintw(0, 0, "unknown key: %d\n", res); } break; } if (cursor_form_win < 0) cursor_form_win = 0; else if (cursor_form_win > prompt_width-1) cursor_form_win = prompt_width-1; wmove(form_win, 0, 0); wclrtoeol(form_win); mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); mvwprintw(form_win, 0, 0, "%s", result + cursor_position-cursor_form_win); wmove(form_win, 0, cursor_form_win); touchwin(win); refresh_all_windows(main_window); if (res == 10) { res = 0; break; } else if (res == 27 || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) { res = KEY_EXIT; break; } else if (res == KEY_F(F_HELP)) { res = 1; break; } } /* hide the cursor */ curs_set(0); del_panel(panel); delwin(prompt_win); delwin(form_win); delwin(win); return res;} Lines 1–500 of 650. 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// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com> * * Derived from menuconfig. */ #include <xalloc.h> #include "nconf.h" #include "lkc.h" int attr_normal; int attr_main_heading; int attr_main_menu_box; int attr_main_menu_fore; int attr_main_menu_back; int attr_main_menu_grey; int attr_main_menu_heading; int attr_scrollwin_text; int attr_scrollwin_heading; int attr_scrollwin_box; int attr_dialog_text; int attr_dialog_menu_fore; int attr_dialog_menu_back; int attr_dialog_box; int attr_input_box; int attr_input_heading; int attr_input_text; int attr_input_field; int attr_function_text; int attr_function_highlight; #define COLOR_ATTR(_at, _fg, _bg, _hl) \ { .attr = &(_at), .has_color = true, .color_fg = _fg, .color_bg = _bg, .highlight = _hl } #define NO_COLOR_ATTR(_at, _hl) \ { .attr = &(_at), .has_color = false, .highlight = _hl } #define COLOR_DEFAULT -1 struct nconf_attr_param { int *attr; bool has_color; int color_fg; int color_bg; int highlight; }; static const struct nconf_attr_param color_theme_params[] = { COLOR_ATTR(attr_normal, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_heading, COLOR_MAGENTA, COLOR_DEFAULT, A_BOLD | A_UNDERLINE), COLOR_ATTR(attr_main_menu_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_fore, COLOR_DEFAULT, COLOR_DEFAULT, A_REVERSE), COLOR_ATTR(attr_main_menu_back, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_grey, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_main_menu_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_scrollwin_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_scrollwin_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_scrollwin_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_dialog_text, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_dialog_menu_fore, COLOR_RED, COLOR_DEFAULT, A_STANDOUT), COLOR_ATTR(attr_dialog_menu_back, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_dialog_box, COLOR_YELLOW, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_input_box, COLOR_YELLOW, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_input_heading, COLOR_GREEN, COLOR_DEFAULT, A_BOLD), COLOR_ATTR(attr_input_text, COLOR_DEFAULT, COLOR_DEFAULT, A_NORMAL), COLOR_ATTR(attr_input_field, COLOR_DEFAULT, COLOR_DEFAULT, A_UNDERLINE), COLOR_ATTR(attr_function_text, COLOR_YELLOW, COLOR_DEFAULT, A_REVERSE), COLOR_ATTR(attr_function_highlight, COLOR_DEFAULT, COLOR_DEFAULT, A_BOLD), { /* sentinel */ } }; static const struct nconf_attr_param no_color_theme_params[] = { NO_COLOR_ATTR(attr_normal, A_NORMAL), NO_COLOR_ATTR(attr_main_heading, A_BOLD | A_UNDERLINE), NO_COLOR_ATTR(attr_main_menu_box, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_fore, A_STANDOUT), NO_COLOR_ATTR(attr_main_menu_back, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_grey, A_NORMAL), NO_COLOR_ATTR(attr_main_menu_heading, A_BOLD), NO_COLOR_ATTR(attr_scrollwin_text, A_NORMAL), NO_COLOR_ATTR(attr_scrollwin_heading, A_BOLD), NO_COLOR_ATTR(attr_scrollwin_box, A_BOLD), NO_COLOR_ATTR(attr_dialog_text, A_NORMAL), NO_COLOR_ATTR(attr_dialog_menu_fore, A_STANDOUT), NO_COLOR_ATTR(attr_dialog_menu_back, A_NORMAL), NO_COLOR_ATTR(attr_dialog_box, A_BOLD), NO_COLOR_ATTR(attr_input_box, A_BOLD), NO_COLOR_ATTR(attr_input_heading, A_BOLD), NO_COLOR_ATTR(attr_input_text, A_NORMAL), NO_COLOR_ATTR(attr_input_field, A_UNDERLINE), NO_COLOR_ATTR(attr_function_text, A_REVERSE), NO_COLOR_ATTR(attr_function_highlight, A_BOLD), { /* sentinel */ } }; void set_colors(void) { const struct nconf_attr_param *p; int pair = 0; if (has_colors()) { start_color(); use_default_colors(); p = color_theme_params; } else { p = no_color_theme_params; } for (; p->attr; p++) { int attr = p->highlight; if (p->has_color) { pair++; init_pair(pair, p->color_fg, p->color_bg); attr |= COLOR_PAIR(pair); } *p->attr = attr; } } /* this changes the windows attributes !!! */ void print_in_middle(WINDOW *win, int y, int width, const char *str, int attrs) { wattrset(win, attrs); mvwprintw(win, y, (width - strlen(str)) / 2, "%s", str); } int get_line_no(const char *text) { int i; int total = 1; if (!text) return 0; for (i = 0; text[i] != '\0'; i++) if (text[i] == '\n') total++; return total; } const char *get_line(const char *text, int line_no) { int i; int lines = 0; if (!text) return NULL; for (i = 0; text[i] != '\0' && lines < line_no; i++) if (text[i] == '\n') lines++; return text+i; } int get_line_length(const char *line) { int res = 0; while (*line != '\0' && *line != '\n') { line++; res++; } return res; } /* print all lines to the window. */ void fill_window(WINDOW *win, const char *text) { int x, y; int total_lines = get_line_no(text); int i; getmaxyx(win, y, x); /* do not go over end of line */ total_lines = min(total_lines, y); for (i = 0; i < total_lines; i++) { const char *line = get_line(text, i); int len = min(get_line_length(line), x); mvwprintw(win, i, 0, "%.*s", len, line); } } /* get the message, and buttons. * each button must be a char* * return the selected button * * this dialog is used for 2 different things: * 1) show a text box, no buttons. * 2) show a dialog, with horizontal buttons */ int btn_dialog(WINDOW *main_window, const char *msg, int btn_num, ...) { va_list ap; char *btn; int btns_width = 0; int msg_lines = 0; int msg_width = 0; int total_width; int win_rows = 0; WINDOW *win; WINDOW *msg_win; WINDOW *menu_win; MENU *menu; ITEM *btns[btn_num+1]; int i, x, y; int res = -1; va_start(ap, btn_num); for (i = 0; i < btn_num; i++) { btn = va_arg(ap, char *); btns[i] = new_item(btn, ""); btns_width += strlen(btn)+1; } va_end(ap); btns[btn_num] = NULL; /* find the widest line of msg: */ msg_lines = get_line_no(msg); for (i = 0; i < msg_lines; i++) { const char *line = get_line(msg, i); int len = get_line_length(line); if (msg_width < len) msg_width = len; } total_width = max(msg_width, btns_width); /* place dialog in middle of screen */ y = (getmaxy(stdscr)-(msg_lines+4))/2; x = (getmaxx(stdscr)-(total_width+4))/2; /* create the windows */ if (btn_num > 0) win_rows = msg_lines+4; else win_rows = msg_lines+2; win = newwin(win_rows, total_width+4, y, x); keypad(win, TRUE); menu_win = derwin(win, 1, btns_width, win_rows-2, 1+(total_width+2-btns_width)/2); menu = new_menu(btns); msg_win = derwin(win, win_rows-2, msg_width, 1, 1+(total_width+2-msg_width)/2); set_menu_fore(menu, attr_dialog_menu_fore); set_menu_back(menu, attr_dialog_menu_back); wattrset(win, attr_dialog_box); box(win, 0, 0); /* print message */ wattrset(msg_win, attr_dialog_text); fill_window(msg_win, msg); set_menu_win(menu, win); set_menu_sub(menu, menu_win); set_menu_format(menu, 1, btn_num); menu_opts_off(menu, O_SHOWDESC); menu_opts_off(menu, O_SHOWMATCH); menu_opts_on(menu, O_ONEVALUE); menu_opts_on(menu, O_NONCYCLIC); set_menu_mark(menu, ""); post_menu(menu); touchwin(win); refresh_all_windows(main_window); while ((res = wgetch(win))) { switch (res) { case KEY_LEFT: menu_driver(menu, REQ_LEFT_ITEM); break; case KEY_RIGHT: menu_driver(menu, REQ_RIGHT_ITEM); break; case 9: /* TAB */ if (btn_num > 1) { /* cycle through buttons */ if (item_index(current_item(menu)) == btn_num - 1) menu_driver(menu, REQ_FIRST_ITEM); else menu_driver(menu, REQ_NEXT_ITEM); } break; case 10: /* ENTER */ case 27: /* ESCAPE */ case ' ': case KEY_F(F_BACK): case KEY_F(F_EXIT): break; } touchwin(win); refresh_all_windows(main_window); if (res == 10 || res == ' ') { res = item_index(current_item(menu)); break; } else if (res == 27 || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) { res = KEY_EXIT; break; } } unpost_menu(menu); free_menu(menu); for (i = 0; i < btn_num; i++) free_item(btns[i]); delwin(win); return res; } int dialog_inputbox(WINDOW *main_window, const char *title, const char *prompt, const char *init, char **resultp, int *result_len) { int prompt_lines = 0; int prompt_width = 0; WINDOW *win; WINDOW *prompt_win; WINDOW *form_win; PANEL *panel; int i, x, y, lines, columns, win_lines, win_cols; int res = -1; int cursor_position = strlen(init); int cursor_form_win; char *result = *resultp; getmaxyx(stdscr, lines, columns); if (strlen(init)+1 > *result_len) { *result_len = strlen(init)+1; *resultp = result = xrealloc(result, *result_len); } /* find the widest line of msg: */ prompt_lines = get_line_no(prompt); for (i = 0; i < prompt_lines; i++) { const char *line = get_line(prompt, i); int len = get_line_length(line); prompt_width = max(prompt_width, len); } if (title) prompt_width = max(prompt_width, strlen(title)); win_lines = min(prompt_lines+6, lines-2); win_cols = min(prompt_width+7, columns-2); prompt_lines = max(win_lines-6, 0); prompt_width = max(win_cols-7, 0); /* place dialog in middle of screen */ y = (lines-win_lines)/2; x = (columns-win_cols)/2; strncpy(result, init, *result_len); result[*result_len - 1] = '\0'; /* create the windows */ win = newwin(win_lines, win_cols, y, x); prompt_win = derwin(win, prompt_lines+1, prompt_width, 2, 2); form_win = derwin(win, 1, prompt_width, prompt_lines+3, 2); keypad(form_win, TRUE); wattrset(form_win, attr_input_field); wattrset(win, attr_input_box); box(win, 0, 0); wattrset(win, attr_input_heading); if (title) mvwprintw(win, 0, 3, "%s", title); /* print message */ wattrset(prompt_win, attr_input_text); fill_window(prompt_win, prompt); mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); cursor_form_win = min(cursor_position, prompt_width-1); mvwprintw(form_win, 0, 0, "%s", result + cursor_position-cursor_form_win); /* create panels */ panel = new_panel(win); /* show the cursor */ curs_set(1); touchwin(win); refresh_all_windows(main_window); while ((res = wgetch(form_win))) { int len = strlen(result); switch (res) { case 10: /* ENTER */ case 27: /* ESCAPE */ case KEY_F(F_HELP): case KEY_F(F_EXIT): case KEY_F(F_BACK): break; case 8: /* ^H */ case 127: /* ^? */ case KEY_BACKSPACE: if (cursor_position > 0) { memmove(&result[cursor_position-1], &result[cursor_position], len-cursor_position+1); cursor_position--; cursor_form_win--; len--; } break; case KEY_DC: if (cursor_position >= 0 && cursor_position < len) { memmove(&result[cursor_position], &result[cursor_position+1], len-cursor_position+1); len--; } break; case KEY_UP: case KEY_RIGHT: if (cursor_position < len) { cursor_position++; cursor_form_win++; } break; case KEY_DOWN: case KEY_LEFT: if (cursor_position > 0) { cursor_position--; cursor_form_win--; } break; case KEY_HOME: cursor_position = 0; cursor_form_win = 0; break; case KEY_END: cursor_position = len; cursor_form_win = min(cursor_position, prompt_width-1); break; default: if ((isgraph(res) || isspace(res))) { /* one for new char, one for '\0' */ if (len+2 > *result_len) { *result_len = len+2; *resultp = result = realloc(result, *result_len); } /* insert the char at the proper position */ memmove(&result[cursor_position+1], &result[cursor_position], len-cursor_position+1); result[cursor_position] = res; cursor_position++; cursor_form_win++; len++; } else { mvprintw(0, 0, "unknown key: %d\n", res); } break; } if (cursor_form_win < 0) cursor_form_win = 0; else if (cursor_form_win > prompt_width-1) cursor_form_win = prompt_width-1; wmove(form_win, 0, 0); wclrtoeol(form_win); mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); mvwprintw(form_win, 0, 0, "%s", result + cursor_position-cursor_form_win); wmove(form_win, 0, cursor_form_win); touchwin(win); refresh_all_windows(main_window); if (res == 10) { res = 0; break; } else if (res == 27 || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) { res = KEY_EXIT; break; } else if (res == KEY_F(F_HELP)) { res = 1; break; } } /* hide the cursor */ curs_set(0); del_panel(panel); delwin(prompt_win); delwin(form_win); delwin(win); return res; }