--- /dev/null
+/*
+ * Copyright (C) 2008 Nir Tzachar <nir.tzachar@gmail.com?
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ * Derived from menuconfig.
+ *
+ */
+#include "nconf.h"
+
+/* a list of all the different widgets we use */
+attributes_t attributes[ATTR_MAX+1] = {0};
+
+/* available colors:
+ COLOR_BLACK 0
+ COLOR_RED 1
+ COLOR_GREEN 2
+ COLOR_YELLOW 3
+ COLOR_BLUE 4
+ COLOR_MAGENTA 5
+ COLOR_CYAN 6
+ COLOR_WHITE 7
+ */
+static void set_normal_colors(void)
+{
+ init_pair(NORMAL, -1, -1);
+ init_pair(MAIN_HEADING, COLOR_MAGENTA, -1);
+
+ /* FORE is for the selected item */
+ init_pair(MAIN_MENU_FORE, -1, -1);
+ /* BACK for all the rest */
+ init_pair(MAIN_MENU_BACK, -1, -1);
+ init_pair(MAIN_MENU_GREY, -1, -1);
+ init_pair(MAIN_MENU_HEADING, COLOR_GREEN, -1);
+ init_pair(MAIN_MENU_BOX, COLOR_YELLOW, -1);
+
+ init_pair(SCROLLWIN_TEXT, -1, -1);
+ init_pair(SCROLLWIN_HEADING, COLOR_GREEN, -1);
+ init_pair(SCROLLWIN_BOX, COLOR_YELLOW, -1);
+
+ init_pair(DIALOG_TEXT, -1, -1);
+ init_pair(DIALOG_BOX, COLOR_YELLOW, -1);
+ init_pair(DIALOG_MENU_BACK, COLOR_YELLOW, -1);
+ init_pair(DIALOG_MENU_FORE, COLOR_RED, -1);
+
+ init_pair(INPUT_BOX, COLOR_YELLOW, -1);
+ init_pair(INPUT_HEADING, COLOR_GREEN, -1);
+ init_pair(INPUT_TEXT, -1, -1);
+ init_pair(INPUT_FIELD, -1, -1);
+
+ init_pair(FUNCTION_HIGHLIGHT, -1, -1);
+ init_pair(FUNCTION_TEXT, COLOR_BLUE, -1);
+}
+
+/* available attributes:
+ A_NORMAL Normal display (no highlight)
+ A_STANDOUT Best highlighting mode of the terminal.
+ A_UNDERLINE Underlining
+ A_REVERSE Reverse video
+ A_BLINK Blinking
+ A_DIM Half bright
+ A_BOLD Extra bright or bold
+ A_PROTECT Protected mode
+ A_INVIS Invisible or blank mode
+ A_ALTCHARSET Alternate character set
+ A_CHARTEXT Bit-mask to extract a character
+ COLOR_PAIR(n) Color-pair number n
+ */
+static void normal_color_theme(void)
+{
+ /* automatically add color... */
+#define mkattr(name, attr) do { \
+attributes[name] = attr | COLOR_PAIR(name); } while (0)
+ mkattr(NORMAL, NORMAL);
+ mkattr(MAIN_HEADING, A_BOLD | A_UNDERLINE);
+
+ mkattr(MAIN_MENU_FORE, A_REVERSE);
+ mkattr(MAIN_MENU_BACK, A_NORMAL);
+ mkattr(MAIN_MENU_GREY, A_NORMAL);
+ mkattr(MAIN_MENU_HEADING, A_BOLD);
+ mkattr(MAIN_MENU_BOX, A_NORMAL);
+
+ mkattr(SCROLLWIN_TEXT, A_NORMAL);
+ mkattr(SCROLLWIN_HEADING, A_BOLD);
+ mkattr(SCROLLWIN_BOX, A_BOLD);
+
+ mkattr(DIALOG_TEXT, A_BOLD);
+ mkattr(DIALOG_BOX, A_BOLD);
+ mkattr(DIALOG_MENU_FORE, A_STANDOUT);
+ mkattr(DIALOG_MENU_BACK, A_NORMAL);
+
+ mkattr(INPUT_BOX, A_NORMAL);
+ mkattr(INPUT_HEADING, A_BOLD);
+ mkattr(INPUT_TEXT, A_NORMAL);
+ mkattr(INPUT_FIELD, A_UNDERLINE);
+
+ mkattr(FUNCTION_HIGHLIGHT, A_BOLD);
+ mkattr(FUNCTION_TEXT, A_REVERSE);
+}
+
+static void no_colors_theme(void)
+{
+ /* automatically add highlight, no color */
+#define mkattrn(name, attr) { attributes[name] = attr; }
+
+ mkattrn(NORMAL, NORMAL);
+ mkattrn(MAIN_HEADING, A_BOLD | A_UNDERLINE);
+
+ mkattrn(MAIN_MENU_FORE, A_STANDOUT);
+ mkattrn(MAIN_MENU_BACK, A_NORMAL);
+ mkattrn(MAIN_MENU_GREY, A_NORMAL);
+ mkattrn(MAIN_MENU_HEADING, A_BOLD);
+ mkattrn(MAIN_MENU_BOX, A_NORMAL);
+
+ mkattrn(SCROLLWIN_TEXT, A_NORMAL);
+ mkattrn(SCROLLWIN_HEADING, A_BOLD);
+ mkattrn(SCROLLWIN_BOX, A_BOLD);
+
+ mkattrn(DIALOG_TEXT, A_NORMAL);
+ mkattrn(DIALOG_BOX, A_BOLD);
+ mkattrn(DIALOG_MENU_FORE, A_STANDOUT);
+ mkattrn(DIALOG_MENU_BACK, A_NORMAL);
+
+ mkattrn(INPUT_BOX, A_BOLD);
+ mkattrn(INPUT_HEADING, A_BOLD);
+ mkattrn(INPUT_TEXT, A_NORMAL);
+ mkattrn(INPUT_FIELD, A_UNDERLINE);
+
+ mkattrn(FUNCTION_HIGHLIGHT, A_BOLD);
+ mkattrn(FUNCTION_TEXT, A_REVERSE);
+}
+
+void set_colors()
+{
+ start_color();
+ use_default_colors();
+ set_normal_colors();
+ if (has_colors()) {
+ normal_color_theme();
+ } else {
+ /* give defaults */
+ no_colors_theme();
+ }
+}
+
+
+/* this changes the windows attributes !!! */
+void print_in_middle(WINDOW *win,
+ int starty,
+ int startx,
+ int width,
+ const char *string,
+ chtype color)
+{ int length, x, y;
+ float temp;
+
+
+ if (win == NULL)
+ win = stdscr;
+ getyx(win, y, x);
+ if (startx != 0)
+ x = startx;
+ if (starty != 0)
+ y = starty;
+ if (width == 0)
+ width = 80;
+
+ length = strlen(string);
+ temp = (width - length) / 2;
+ x = startx + (int)temp;
+ (void) wattrset(win, color);
+ mvwprintw(win, y, x, "%s", string);
+ refresh();
+}
+
+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 0;
+
+ 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++) {
+ char tmp[x+10];
+ const char *line = get_line(text, i);
+ int len = get_line_length(line);
+ strncpy(tmp, line, min(len, x));
+ tmp[len] = '\0';
+ mvwprintw(win, i, 0, "%s", tmp);
+ }
+}
+
+/* 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 = (LINES-(msg_lines+4))/2;
+ x = (COLS-(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, attributes[DIALOG_MENU_FORE]);
+ set_menu_back(menu, attributes[DIALOG_MENU_BACK]);
+
+ (void) wattrset(win, attributes[DIALOG_BOX]);
+ box(win, 0, 0);
+
+ /* print message */
+ (void) wattrset(msg_win, attributes[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 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 *result, 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;
+ int res = -1;
+ int cursor_position = strlen(init);
+
+
+ /* 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));
+
+ /* place dialog in middle of screen */
+ y = (LINES-(prompt_lines+4))/2;
+ x = (COLS-(prompt_width+4))/2;
+
+ strncpy(result, init, result_len);
+
+ /* create the windows */
+ win = newwin(prompt_lines+6, prompt_width+7, 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);
+
+ (void) wattrset(form_win, attributes[INPUT_FIELD]);
+
+ (void) wattrset(win, attributes[INPUT_BOX]);
+ box(win, 0, 0);
+ (void) wattrset(win, attributes[INPUT_HEADING]);
+ if (title)
+ mvwprintw(win, 0, 3, "%s", title);
+
+ /* print message */
+ (void) wattrset(prompt_win, attributes[INPUT_TEXT]);
+ fill_window(prompt_win, prompt);
+
+ mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
+ mvwprintw(form_win, 0, 0, "%s", result);
+
+ /* 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 127:
+ case KEY_BACKSPACE:
+ if (cursor_position > 0) {
+ memmove(&result[cursor_position-1],
+ &result[cursor_position],
+ len-cursor_position+1);
+ cursor_position--;
+ }
+ break;
+ case KEY_DC:
+ if (cursor_position >= 0 && cursor_position < len) {
+ memmove(&result[cursor_position],
+ &result[cursor_position+1],
+ len-cursor_position+1);
+ }
+ break;
+ case KEY_UP:
+ case KEY_RIGHT:
+ if (cursor_position < len &&
+ cursor_position < min(result_len, prompt_width))
+ cursor_position++;
+ break;
+ case KEY_DOWN:
+ case KEY_LEFT:
+ if (cursor_position > 0)
+ cursor_position--;
+ break;
+ default:
+ if ((isgraph(res) || isspace(res)) &&
+ len-2 < result_len) {
+ /* insert the char at the proper position */
+ memmove(&result[cursor_position+1],
+ &result[cursor_position],
+ len+1);
+ result[cursor_position] = res;
+ cursor_position++;
+ } else {
+ mvprintw(0, 0, "unknow key: %d\n", res);
+ }
+ break;
+ }
+ wmove(form_win, 0, 0);
+ wclrtoeol(form_win);
+ mvwprintw(form_win, 0, 0, "%*s", prompt_width, " ");
+ mvwprintw(form_win, 0, 0, "%s", result);
+ wmove(form_win, 0, cursor_position);
+ 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;
+}
+
+/* refresh all windows in the correct order */
+void refresh_all_windows(WINDOW *main_window)
+{
+ update_panels();
+ touchwin(main_window);
+ refresh();
+}
+
+/* layman's scrollable window... */
+void show_scroll_win(WINDOW *main_window,
+ const char *title,
+ const char *text)
+{
+ int res;
+ int total_lines = get_line_no(text);
+ int x, y;
+ int start_x = 0, start_y = 0;
+ int text_lines = 0, text_cols = 0;
+ int total_cols = 0;
+ int win_cols = 0;
+ int win_lines = 0;
+ int i = 0;
+ WINDOW *win;
+ WINDOW *pad;
+ PANEL *panel;
+
+ /* find the widest line of msg: */
+ total_lines = get_line_no(text);
+ for (i = 0; i < total_lines; i++) {
+ const char *line = get_line(text, i);
+ int len = get_line_length(line);
+ total_cols = max(total_cols, len+2);
+ }
+
+ /* create the pad */
+ pad = newpad(total_lines+10, total_cols+10);
+ (void) wattrset(pad, attributes[SCROLLWIN_TEXT]);
+ fill_window(pad, text);
+
+ win_lines = min(total_lines+4, LINES-2);
+ win_cols = min(total_cols+2, COLS-2);
+ text_lines = max(win_lines-4, 0);
+ text_cols = max(win_cols-2, 0);
+
+ /* place window in middle of screen */
+ y = (LINES-win_lines)/2;
+ x = (COLS-win_cols)/2;
+
+ win = newwin(win_lines, win_cols, y, x);
+ keypad(win, TRUE);
+ /* show the help in the help window, and show the help panel */
+ (void) wattrset(win, attributes[SCROLLWIN_BOX]);
+ box(win, 0, 0);
+ (void) wattrset(win, attributes[SCROLLWIN_HEADING]);
+ mvwprintw(win, 0, 3, " %s ", title);
+ panel = new_panel(win);
+
+ /* handle scrolling */
+ do {
+
+ copywin(pad, win, start_y, start_x, 2, 2, text_lines,
+ text_cols, 0);
+ print_in_middle(win,
+ text_lines+2,
+ 0,
+ text_cols,
+ "<OK>",
+ attributes[DIALOG_MENU_FORE]);
+ wrefresh(win);
+
+ res = wgetch(win);
+ switch (res) {
+ case KEY_NPAGE:
+ case ' ':
+ start_y += text_lines-2;
+ break;
+ case KEY_PPAGE:
+ start_y -= text_lines+2;
+ break;
+ case KEY_HOME:
+ start_y = 0;
+ break;
+ case KEY_END:
+ start_y = total_lines-text_lines;
+ break;
+ case KEY_DOWN:
+ case 'j':
+ start_y++;
+ break;
+ case KEY_UP:
+ case 'k':
+ start_y--;
+ break;
+ case KEY_LEFT:
+ case 'h':
+ start_x--;
+ break;
+ case KEY_RIGHT:
+ case 'l':
+ start_x++;
+ break;
+ }
+ if (res == 10 || res == 27 || res == 'q'
+ || res == KEY_F(F_BACK) || res == KEY_F(F_EXIT)) {
+ break;
+ }
+ if (start_y < 0)
+ start_y = 0;
+ if (start_y >= total_lines-text_lines)
+ start_y = total_lines-text_lines;
+ if (start_x < 0)
+ start_x = 0;
+ if (start_x >= total_cols-text_cols)
+ start_x = total_cols-text_cols;
+ } while (res);
+
+ del_panel(panel);
+ delwin(win);
+ refresh_all_windows(main_window);
+}
