1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
20a9064fbSMasahiro Yamada /*
30a9064fbSMasahiro Yamada * textbox.c -- implements the text box
40a9064fbSMasahiro Yamada *
50a9064fbSMasahiro Yamada * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
60a9064fbSMasahiro Yamada * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
70a9064fbSMasahiro Yamada */
80a9064fbSMasahiro Yamada
90a9064fbSMasahiro Yamada #include "dialog.h"
100a9064fbSMasahiro Yamada
110a9064fbSMasahiro Yamada static void back_lines(int n);
120a9064fbSMasahiro Yamada static void print_page(WINDOW *win, int height, int width, update_text_fn
130a9064fbSMasahiro Yamada update_text, void *data);
140a9064fbSMasahiro Yamada static void print_line(WINDOW *win, int row, int width);
150a9064fbSMasahiro Yamada static char *get_line(void);
160a9064fbSMasahiro Yamada static void print_position(WINDOW * win);
170a9064fbSMasahiro Yamada
180a9064fbSMasahiro Yamada static int hscroll;
190a9064fbSMasahiro Yamada static int begin_reached, end_reached, page_length;
200a9064fbSMasahiro Yamada static char *buf;
210a9064fbSMasahiro Yamada static char *page;
220a9064fbSMasahiro Yamada
230a9064fbSMasahiro Yamada /*
240a9064fbSMasahiro Yamada * refresh window content
250a9064fbSMasahiro Yamada */
refresh_text_box(WINDOW * dialog,WINDOW * box,int boxh,int boxw,int cur_y,int cur_x,update_text_fn update_text,void * data)260a9064fbSMasahiro Yamada static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
270a9064fbSMasahiro Yamada int cur_y, int cur_x, update_text_fn update_text,
280a9064fbSMasahiro Yamada void *data)
290a9064fbSMasahiro Yamada {
300a9064fbSMasahiro Yamada print_page(box, boxh, boxw, update_text, data);
310a9064fbSMasahiro Yamada print_position(dialog);
320a9064fbSMasahiro Yamada wmove(dialog, cur_y, cur_x); /* Restore cursor position */
330a9064fbSMasahiro Yamada wrefresh(dialog);
340a9064fbSMasahiro Yamada }
350a9064fbSMasahiro Yamada
360a9064fbSMasahiro Yamada
370a9064fbSMasahiro Yamada /*
380a9064fbSMasahiro Yamada * Display text from a file in a dialog box.
390a9064fbSMasahiro Yamada *
400a9064fbSMasahiro Yamada * keys is a null-terminated array
410a9064fbSMasahiro Yamada * update_text() may not add or remove any '\n' or '\0' in tbuf
420a9064fbSMasahiro Yamada */
dialog_textbox(const char * title,char * tbuf,int initial_height,int initial_width,int * keys,int * _vscroll,int * _hscroll,update_text_fn update_text,void * data)430a9064fbSMasahiro Yamada int dialog_textbox(const char *title, char *tbuf, int initial_height,
440a9064fbSMasahiro Yamada int initial_width, int *keys, int *_vscroll, int *_hscroll,
450a9064fbSMasahiro Yamada update_text_fn update_text, void *data)
460a9064fbSMasahiro Yamada {
470a9064fbSMasahiro Yamada int i, x, y, cur_x, cur_y, key = 0;
480a9064fbSMasahiro Yamada int height, width, boxh, boxw;
490a9064fbSMasahiro Yamada WINDOW *dialog, *box;
500a9064fbSMasahiro Yamada bool done = false;
510a9064fbSMasahiro Yamada
520a9064fbSMasahiro Yamada begin_reached = 1;
530a9064fbSMasahiro Yamada end_reached = 0;
540a9064fbSMasahiro Yamada page_length = 0;
550a9064fbSMasahiro Yamada hscroll = 0;
560a9064fbSMasahiro Yamada buf = tbuf;
570a9064fbSMasahiro Yamada page = buf; /* page is pointer to start of page to be displayed */
580a9064fbSMasahiro Yamada
590a9064fbSMasahiro Yamada if (_vscroll && *_vscroll) {
600a9064fbSMasahiro Yamada begin_reached = 0;
610a9064fbSMasahiro Yamada
620a9064fbSMasahiro Yamada for (i = 0; i < *_vscroll; i++)
630a9064fbSMasahiro Yamada get_line();
640a9064fbSMasahiro Yamada }
650a9064fbSMasahiro Yamada if (_hscroll)
660a9064fbSMasahiro Yamada hscroll = *_hscroll;
670a9064fbSMasahiro Yamada
680a9064fbSMasahiro Yamada do_resize:
690a9064fbSMasahiro Yamada getmaxyx(stdscr, height, width);
700a9064fbSMasahiro Yamada if (height < TEXTBOX_HEIGTH_MIN || width < TEXTBOX_WIDTH_MIN)
710a9064fbSMasahiro Yamada return -ERRDISPLAYTOOSMALL;
720a9064fbSMasahiro Yamada if (initial_height != 0)
730a9064fbSMasahiro Yamada height = initial_height;
740a9064fbSMasahiro Yamada else
750a9064fbSMasahiro Yamada if (height > 4)
760a9064fbSMasahiro Yamada height -= 4;
770a9064fbSMasahiro Yamada else
780a9064fbSMasahiro Yamada height = 0;
790a9064fbSMasahiro Yamada if (initial_width != 0)
800a9064fbSMasahiro Yamada width = initial_width;
810a9064fbSMasahiro Yamada else
820a9064fbSMasahiro Yamada if (width > 5)
830a9064fbSMasahiro Yamada width -= 5;
840a9064fbSMasahiro Yamada else
850a9064fbSMasahiro Yamada width = 0;
860a9064fbSMasahiro Yamada
870a9064fbSMasahiro Yamada /* center dialog box on screen */
880a9064fbSMasahiro Yamada x = (getmaxx(stdscr) - width) / 2;
890a9064fbSMasahiro Yamada y = (getmaxy(stdscr) - height) / 2;
900a9064fbSMasahiro Yamada
910a9064fbSMasahiro Yamada draw_shadow(stdscr, y, x, height, width);
920a9064fbSMasahiro Yamada
930a9064fbSMasahiro Yamada dialog = newwin(height, width, y, x);
940a9064fbSMasahiro Yamada keypad(dialog, TRUE);
950a9064fbSMasahiro Yamada
960a9064fbSMasahiro Yamada /* Create window for box region, used for scrolling text */
970a9064fbSMasahiro Yamada boxh = height - 4;
980a9064fbSMasahiro Yamada boxw = width - 2;
990a9064fbSMasahiro Yamada box = subwin(dialog, boxh, boxw, y + 1, x + 1);
1000a9064fbSMasahiro Yamada wattrset(box, dlg.dialog.atr);
1010a9064fbSMasahiro Yamada wbkgdset(box, dlg.dialog.atr & A_COLOR);
1020a9064fbSMasahiro Yamada
1030a9064fbSMasahiro Yamada keypad(box, TRUE);
1040a9064fbSMasahiro Yamada
1050a9064fbSMasahiro Yamada /* register the new window, along with its borders */
1060a9064fbSMasahiro Yamada draw_box(dialog, 0, 0, height, width,
1070a9064fbSMasahiro Yamada dlg.dialog.atr, dlg.border.atr);
1080a9064fbSMasahiro Yamada
1090a9064fbSMasahiro Yamada wattrset(dialog, dlg.border.atr);
1100a9064fbSMasahiro Yamada mvwaddch(dialog, height - 3, 0, ACS_LTEE);
1110a9064fbSMasahiro Yamada for (i = 0; i < width - 2; i++)
1120a9064fbSMasahiro Yamada waddch(dialog, ACS_HLINE);
1130a9064fbSMasahiro Yamada wattrset(dialog, dlg.dialog.atr);
1140a9064fbSMasahiro Yamada wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
1150a9064fbSMasahiro Yamada waddch(dialog, ACS_RTEE);
1160a9064fbSMasahiro Yamada
1170a9064fbSMasahiro Yamada print_title(dialog, title, width);
1180a9064fbSMasahiro Yamada
1190a9064fbSMasahiro Yamada print_button(dialog, gettext(" Exit "), height - 2, width / 2 - 4, TRUE);
1200a9064fbSMasahiro Yamada wnoutrefresh(dialog);
1210a9064fbSMasahiro Yamada getyx(dialog, cur_y, cur_x); /* Save cursor position */
1220a9064fbSMasahiro Yamada
1230a9064fbSMasahiro Yamada /* Print first page of text */
1240a9064fbSMasahiro Yamada attr_clear(box, boxh, boxw, dlg.dialog.atr);
1250a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
1260a9064fbSMasahiro Yamada data);
1270a9064fbSMasahiro Yamada
1280a9064fbSMasahiro Yamada while (!done) {
1290a9064fbSMasahiro Yamada key = wgetch(dialog);
1300a9064fbSMasahiro Yamada switch (key) {
1310a9064fbSMasahiro Yamada case 'E': /* Exit */
1320a9064fbSMasahiro Yamada case 'e':
1330a9064fbSMasahiro Yamada case 'X':
1340a9064fbSMasahiro Yamada case 'x':
1350a9064fbSMasahiro Yamada case 'q':
1360a9064fbSMasahiro Yamada case '\n':
1370a9064fbSMasahiro Yamada done = true;
1380a9064fbSMasahiro Yamada break;
1390a9064fbSMasahiro Yamada case 'g': /* First page */
1400a9064fbSMasahiro Yamada case KEY_HOME:
1410a9064fbSMasahiro Yamada if (!begin_reached) {
1420a9064fbSMasahiro Yamada begin_reached = 1;
1430a9064fbSMasahiro Yamada page = buf;
1440a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw,
1450a9064fbSMasahiro Yamada cur_y, cur_x, update_text,
1460a9064fbSMasahiro Yamada data);
1470a9064fbSMasahiro Yamada }
1480a9064fbSMasahiro Yamada break;
1490a9064fbSMasahiro Yamada case 'G': /* Last page */
1500a9064fbSMasahiro Yamada case KEY_END:
1510a9064fbSMasahiro Yamada
1520a9064fbSMasahiro Yamada end_reached = 1;
1530a9064fbSMasahiro Yamada /* point to last char in buf */
1540a9064fbSMasahiro Yamada page = buf + strlen(buf);
1550a9064fbSMasahiro Yamada back_lines(boxh);
1560a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
1570a9064fbSMasahiro Yamada cur_x, update_text, data);
1580a9064fbSMasahiro Yamada break;
1590a9064fbSMasahiro Yamada case 'K': /* Previous line */
1600a9064fbSMasahiro Yamada case 'k':
1610a9064fbSMasahiro Yamada case KEY_UP:
1620a9064fbSMasahiro Yamada if (begin_reached)
1630a9064fbSMasahiro Yamada break;
1640a9064fbSMasahiro Yamada
1650a9064fbSMasahiro Yamada back_lines(page_length + 1);
1660a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
1670a9064fbSMasahiro Yamada cur_x, update_text, data);
1680a9064fbSMasahiro Yamada break;
1690a9064fbSMasahiro Yamada case 'B': /* Previous page */
1700a9064fbSMasahiro Yamada case 'b':
1710a9064fbSMasahiro Yamada case 'u':
1720a9064fbSMasahiro Yamada case KEY_PPAGE:
1730a9064fbSMasahiro Yamada if (begin_reached)
1740a9064fbSMasahiro Yamada break;
1750a9064fbSMasahiro Yamada back_lines(page_length + boxh);
1760a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
1770a9064fbSMasahiro Yamada cur_x, update_text, data);
1780a9064fbSMasahiro Yamada break;
1790a9064fbSMasahiro Yamada case 'J': /* Next line */
1800a9064fbSMasahiro Yamada case 'j':
1810a9064fbSMasahiro Yamada case KEY_DOWN:
1820a9064fbSMasahiro Yamada if (end_reached)
1830a9064fbSMasahiro Yamada break;
1840a9064fbSMasahiro Yamada
1850a9064fbSMasahiro Yamada back_lines(page_length - 1);
1860a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
1870a9064fbSMasahiro Yamada cur_x, update_text, data);
1880a9064fbSMasahiro Yamada break;
1890a9064fbSMasahiro Yamada case KEY_NPAGE: /* Next page */
1900a9064fbSMasahiro Yamada case ' ':
1910a9064fbSMasahiro Yamada case 'd':
1920a9064fbSMasahiro Yamada if (end_reached)
1930a9064fbSMasahiro Yamada break;
1940a9064fbSMasahiro Yamada
1950a9064fbSMasahiro Yamada begin_reached = 0;
1960a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
1970a9064fbSMasahiro Yamada cur_x, update_text, data);
1980a9064fbSMasahiro Yamada break;
1990a9064fbSMasahiro Yamada case '0': /* Beginning of line */
2000a9064fbSMasahiro Yamada case 'H': /* Scroll left */
2010a9064fbSMasahiro Yamada case 'h':
2020a9064fbSMasahiro Yamada case KEY_LEFT:
2030a9064fbSMasahiro Yamada if (hscroll <= 0)
2040a9064fbSMasahiro Yamada break;
2050a9064fbSMasahiro Yamada
2060a9064fbSMasahiro Yamada if (key == '0')
2070a9064fbSMasahiro Yamada hscroll = 0;
2080a9064fbSMasahiro Yamada else
2090a9064fbSMasahiro Yamada hscroll--;
2100a9064fbSMasahiro Yamada /* Reprint current page to scroll horizontally */
2110a9064fbSMasahiro Yamada back_lines(page_length);
2120a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
2130a9064fbSMasahiro Yamada cur_x, update_text, data);
2140a9064fbSMasahiro Yamada break;
2150a9064fbSMasahiro Yamada case 'L': /* Scroll right */
2160a9064fbSMasahiro Yamada case 'l':
2170a9064fbSMasahiro Yamada case KEY_RIGHT:
2180a9064fbSMasahiro Yamada if (hscroll >= MAX_LEN)
2190a9064fbSMasahiro Yamada break;
2200a9064fbSMasahiro Yamada hscroll++;
2210a9064fbSMasahiro Yamada /* Reprint current page to scroll horizontally */
2220a9064fbSMasahiro Yamada back_lines(page_length);
2230a9064fbSMasahiro Yamada refresh_text_box(dialog, box, boxh, boxw, cur_y,
2240a9064fbSMasahiro Yamada cur_x, update_text, data);
2250a9064fbSMasahiro Yamada break;
2260a9064fbSMasahiro Yamada case KEY_ESC:
2270a9064fbSMasahiro Yamada if (on_key_esc(dialog) == KEY_ESC)
2280a9064fbSMasahiro Yamada done = true;
2290a9064fbSMasahiro Yamada break;
2300a9064fbSMasahiro Yamada case KEY_RESIZE:
2310a9064fbSMasahiro Yamada back_lines(height);
2320a9064fbSMasahiro Yamada delwin(box);
2330a9064fbSMasahiro Yamada delwin(dialog);
2340a9064fbSMasahiro Yamada on_key_resize();
2350a9064fbSMasahiro Yamada goto do_resize;
2360a9064fbSMasahiro Yamada default:
2370a9064fbSMasahiro Yamada for (i = 0; keys[i]; i++) {
2380a9064fbSMasahiro Yamada if (key == keys[i]) {
2390a9064fbSMasahiro Yamada done = true;
2400a9064fbSMasahiro Yamada break;
2410a9064fbSMasahiro Yamada }
2420a9064fbSMasahiro Yamada }
2430a9064fbSMasahiro Yamada }
2440a9064fbSMasahiro Yamada }
2450a9064fbSMasahiro Yamada delwin(box);
2460a9064fbSMasahiro Yamada delwin(dialog);
2470a9064fbSMasahiro Yamada if (_vscroll) {
2480a9064fbSMasahiro Yamada const char *s;
2490a9064fbSMasahiro Yamada
2500a9064fbSMasahiro Yamada s = buf;
2510a9064fbSMasahiro Yamada *_vscroll = 0;
2520a9064fbSMasahiro Yamada back_lines(page_length);
2530a9064fbSMasahiro Yamada while (s < page && (s = strchr(s, '\n'))) {
2540a9064fbSMasahiro Yamada (*_vscroll)++;
2550a9064fbSMasahiro Yamada s++;
2560a9064fbSMasahiro Yamada }
2570a9064fbSMasahiro Yamada }
2580a9064fbSMasahiro Yamada if (_hscroll)
2590a9064fbSMasahiro Yamada *_hscroll = hscroll;
2600a9064fbSMasahiro Yamada return key;
2610a9064fbSMasahiro Yamada }
2620a9064fbSMasahiro Yamada
2630a9064fbSMasahiro Yamada /*
2640a9064fbSMasahiro Yamada * Go back 'n' lines in text. Called by dialog_textbox().
2650a9064fbSMasahiro Yamada * 'page' will be updated to point to the desired line in 'buf'.
2660a9064fbSMasahiro Yamada */
back_lines(int n)2670a9064fbSMasahiro Yamada static void back_lines(int n)
2680a9064fbSMasahiro Yamada {
2690a9064fbSMasahiro Yamada int i;
2700a9064fbSMasahiro Yamada
2710a9064fbSMasahiro Yamada begin_reached = 0;
2720a9064fbSMasahiro Yamada /* Go back 'n' lines */
2730a9064fbSMasahiro Yamada for (i = 0; i < n; i++) {
2740a9064fbSMasahiro Yamada if (*page == '\0') {
2750a9064fbSMasahiro Yamada if (end_reached) {
2760a9064fbSMasahiro Yamada end_reached = 0;
2770a9064fbSMasahiro Yamada continue;
2780a9064fbSMasahiro Yamada }
2790a9064fbSMasahiro Yamada }
2800a9064fbSMasahiro Yamada if (page == buf) {
2810a9064fbSMasahiro Yamada begin_reached = 1;
2820a9064fbSMasahiro Yamada return;
2830a9064fbSMasahiro Yamada }
2840a9064fbSMasahiro Yamada page--;
2850a9064fbSMasahiro Yamada do {
2860a9064fbSMasahiro Yamada if (page == buf) {
2870a9064fbSMasahiro Yamada begin_reached = 1;
2880a9064fbSMasahiro Yamada return;
2890a9064fbSMasahiro Yamada }
2900a9064fbSMasahiro Yamada page--;
2910a9064fbSMasahiro Yamada } while (*page != '\n');
2920a9064fbSMasahiro Yamada page++;
2930a9064fbSMasahiro Yamada }
2940a9064fbSMasahiro Yamada }
2950a9064fbSMasahiro Yamada
2960a9064fbSMasahiro Yamada /*
2970a9064fbSMasahiro Yamada * Print a new page of text.
2980a9064fbSMasahiro Yamada */
print_page(WINDOW * win,int height,int width,update_text_fn update_text,void * data)2990a9064fbSMasahiro Yamada static void print_page(WINDOW *win, int height, int width, update_text_fn
3000a9064fbSMasahiro Yamada update_text, void *data)
3010a9064fbSMasahiro Yamada {
3020a9064fbSMasahiro Yamada int i, passed_end = 0;
3030a9064fbSMasahiro Yamada
3040a9064fbSMasahiro Yamada if (update_text) {
3050a9064fbSMasahiro Yamada char *end;
3060a9064fbSMasahiro Yamada
3070a9064fbSMasahiro Yamada for (i = 0; i < height; i++)
3080a9064fbSMasahiro Yamada get_line();
3090a9064fbSMasahiro Yamada end = page;
3100a9064fbSMasahiro Yamada back_lines(height);
3110a9064fbSMasahiro Yamada update_text(buf, page - buf, end - buf, data);
3120a9064fbSMasahiro Yamada }
3130a9064fbSMasahiro Yamada
3140a9064fbSMasahiro Yamada page_length = 0;
3150a9064fbSMasahiro Yamada for (i = 0; i < height; i++) {
3160a9064fbSMasahiro Yamada print_line(win, i, width);
3170a9064fbSMasahiro Yamada if (!passed_end)
3180a9064fbSMasahiro Yamada page_length++;
3190a9064fbSMasahiro Yamada if (end_reached && !passed_end)
3200a9064fbSMasahiro Yamada passed_end = 1;
3210a9064fbSMasahiro Yamada }
3220a9064fbSMasahiro Yamada wnoutrefresh(win);
3230a9064fbSMasahiro Yamada }
3240a9064fbSMasahiro Yamada
3250a9064fbSMasahiro Yamada /*
3260a9064fbSMasahiro Yamada * Print a new line of text.
3270a9064fbSMasahiro Yamada */
print_line(WINDOW * win,int row,int width)3280a9064fbSMasahiro Yamada static void print_line(WINDOW * win, int row, int width)
3290a9064fbSMasahiro Yamada {
3300a9064fbSMasahiro Yamada char *line;
3310a9064fbSMasahiro Yamada
3320a9064fbSMasahiro Yamada line = get_line();
3330a9064fbSMasahiro Yamada line += MIN(strlen(line), hscroll); /* Scroll horizontally */
3340a9064fbSMasahiro Yamada wmove(win, row, 0); /* move cursor to correct line */
3350a9064fbSMasahiro Yamada waddch(win, ' ');
3360a9064fbSMasahiro Yamada waddnstr(win, line, MIN(strlen(line), width - 2));
3370a9064fbSMasahiro Yamada
3380a9064fbSMasahiro Yamada /* Clear 'residue' of previous line */
3390a9064fbSMasahiro Yamada #if OLD_NCURSES
3400a9064fbSMasahiro Yamada {
3410a9064fbSMasahiro Yamada int x = getcurx(win);
3420a9064fbSMasahiro Yamada int i;
3430a9064fbSMasahiro Yamada for (i = 0; i < width - x; i++)
3440a9064fbSMasahiro Yamada waddch(win, ' ');
3450a9064fbSMasahiro Yamada }
3460a9064fbSMasahiro Yamada #else
3470a9064fbSMasahiro Yamada wclrtoeol(win);
3480a9064fbSMasahiro Yamada #endif
3490a9064fbSMasahiro Yamada }
3500a9064fbSMasahiro Yamada
3510a9064fbSMasahiro Yamada /*
3520a9064fbSMasahiro Yamada * Return current line of text. Called by dialog_textbox() and print_line().
3530a9064fbSMasahiro Yamada * 'page' should point to start of current line before calling, and will be
3540a9064fbSMasahiro Yamada * updated to point to start of next line.
3550a9064fbSMasahiro Yamada */
get_line(void)3560a9064fbSMasahiro Yamada static char *get_line(void)
3570a9064fbSMasahiro Yamada {
3580a9064fbSMasahiro Yamada int i = 0;
3590a9064fbSMasahiro Yamada static char line[MAX_LEN + 1];
3600a9064fbSMasahiro Yamada
3610a9064fbSMasahiro Yamada end_reached = 0;
3620a9064fbSMasahiro Yamada while (*page != '\n') {
3630a9064fbSMasahiro Yamada if (*page == '\0') {
3640a9064fbSMasahiro Yamada end_reached = 1;
3650a9064fbSMasahiro Yamada break;
3660a9064fbSMasahiro Yamada } else if (i < MAX_LEN)
3670a9064fbSMasahiro Yamada line[i++] = *(page++);
3680a9064fbSMasahiro Yamada else {
3690a9064fbSMasahiro Yamada /* Truncate lines longer than MAX_LEN characters */
3700a9064fbSMasahiro Yamada if (i == MAX_LEN)
3710a9064fbSMasahiro Yamada line[i++] = '\0';
3720a9064fbSMasahiro Yamada page++;
3730a9064fbSMasahiro Yamada }
3740a9064fbSMasahiro Yamada }
3750a9064fbSMasahiro Yamada if (i <= MAX_LEN)
3760a9064fbSMasahiro Yamada line[i] = '\0';
3770a9064fbSMasahiro Yamada if (!end_reached)
3780a9064fbSMasahiro Yamada page++; /* move past '\n' */
3790a9064fbSMasahiro Yamada
3800a9064fbSMasahiro Yamada return line;
3810a9064fbSMasahiro Yamada }
3820a9064fbSMasahiro Yamada
3830a9064fbSMasahiro Yamada /*
3840a9064fbSMasahiro Yamada * Print current position
3850a9064fbSMasahiro Yamada */
print_position(WINDOW * win)3860a9064fbSMasahiro Yamada static void print_position(WINDOW * win)
3870a9064fbSMasahiro Yamada {
3880a9064fbSMasahiro Yamada int percent;
3890a9064fbSMasahiro Yamada
3900a9064fbSMasahiro Yamada wattrset(win, dlg.position_indicator.atr);
3910a9064fbSMasahiro Yamada wbkgdset(win, dlg.position_indicator.atr & A_COLOR);
3920a9064fbSMasahiro Yamada percent = (page - buf) * 100 / strlen(buf);
3930a9064fbSMasahiro Yamada wmove(win, getmaxy(win) - 3, getmaxx(win) - 9);
3940a9064fbSMasahiro Yamada wprintw(win, "(%3d%%)", percent);
3950a9064fbSMasahiro Yamada }
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