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Diffstat (limited to 'tools/kconfig/lxdialog/textbox.c')
-rw-r--r--tools/kconfig/lxdialog/textbox.c395
1 files changed, 0 insertions, 395 deletions
diff --git a/tools/kconfig/lxdialog/textbox.c b/tools/kconfig/lxdialog/textbox.c
deleted file mode 100644
index 4e339b1..0000000
--- a/tools/kconfig/lxdialog/textbox.c
+++ /dev/null
@@ -1,395 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0+
-/*
- * textbox.c -- implements the text box
- *
- * ORIGINAL AUTHOR: Savio Lam (lam836@cs.cuhk.hk)
- * MODIFIED FOR LINUX KERNEL CONFIG BY: William Roadcap (roadcap@cfw.com)
- */
-
-#include "dialog.h"
-
-static void back_lines(int n);
-static void print_page(WINDOW *win, int height, int width, update_text_fn
- update_text, void *data);
-static void print_line(WINDOW *win, int row, int width);
-static char *get_line(void);
-static void print_position(WINDOW * win);
-
-static int hscroll;
-static int begin_reached, end_reached, page_length;
-static char *buf;
-static char *page;
-
-/*
- * refresh window content
- */
-static void refresh_text_box(WINDOW *dialog, WINDOW *box, int boxh, int boxw,
- int cur_y, int cur_x, update_text_fn update_text,
- void *data)
-{
- print_page(box, boxh, boxw, update_text, data);
- print_position(dialog);
- wmove(dialog, cur_y, cur_x); /* Restore cursor position */
- wrefresh(dialog);
-}
-
-
-/*
- * Display text from a file in a dialog box.
- *
- * keys is a null-terminated array
- * update_text() may not add or remove any '\n' or '\0' in tbuf
- */
-int 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)
-{
- int i, x, y, cur_x, cur_y, key = 0;
- int height, width, boxh, boxw;
- WINDOW *dialog, *box;
- bool done = false;
-
- begin_reached = 1;
- end_reached = 0;
- page_length = 0;
- hscroll = 0;
- buf = tbuf;
- page = buf; /* page is pointer to start of page to be displayed */
-
- if (_vscroll && *_vscroll) {
- begin_reached = 0;
-
- for (i = 0; i < *_vscroll; i++)
- get_line();
- }
- if (_hscroll)
- hscroll = *_hscroll;
-
-do_resize:
- getmaxyx(stdscr, height, width);
- if (height < TEXTBOX_HEIGTH_MIN || width < TEXTBOX_WIDTH_MIN)
- return -ERRDISPLAYTOOSMALL;
- if (initial_height != 0)
- height = initial_height;
- else
- if (height > 4)
- height -= 4;
- else
- height = 0;
- if (initial_width != 0)
- width = initial_width;
- else
- if (width > 5)
- width -= 5;
- else
- width = 0;
-
- /* center dialog box on screen */
- x = (getmaxx(stdscr) - width) / 2;
- y = (getmaxy(stdscr) - height) / 2;
-
- draw_shadow(stdscr, y, x, height, width);
-
- dialog = newwin(height, width, y, x);
- keypad(dialog, TRUE);
-
- /* Create window for box region, used for scrolling text */
- boxh = height - 4;
- boxw = width - 2;
- box = subwin(dialog, boxh, boxw, y + 1, x + 1);
- wattrset(box, dlg.dialog.atr);
- wbkgdset(box, dlg.dialog.atr & A_COLOR);
-
- keypad(box, TRUE);
-
- /* register the new window, along with its borders */
- draw_box(dialog, 0, 0, height, width,
- dlg.dialog.atr, dlg.border.atr);
-
- wattrset(dialog, dlg.border.atr);
- mvwaddch(dialog, height - 3, 0, ACS_LTEE);
- for (i = 0; i < width - 2; i++)
- waddch(dialog, ACS_HLINE);
- wattrset(dialog, dlg.dialog.atr);
- wbkgdset(dialog, dlg.dialog.atr & A_COLOR);
- waddch(dialog, ACS_RTEE);
-
- print_title(dialog, title, width);
-
- print_button(dialog, " Exit ", height - 2, width / 2 - 4, TRUE);
- wnoutrefresh(dialog);
- getyx(dialog, cur_y, cur_x); /* Save cursor position */
-
- /* Print first page of text */
- attr_clear(box, boxh, boxw, dlg.dialog.atr);
- refresh_text_box(dialog, box, boxh, boxw, cur_y, cur_x, update_text,
- data);
-
- while (!done) {
- key = wgetch(dialog);
- switch (key) {
- case 'E': /* Exit */
- case 'e':
- case 'X':
- case 'x':
- case 'q':
- case '\n':
- done = true;
- break;
- case 'g': /* First page */
- case KEY_HOME:
- if (!begin_reached) {
- begin_reached = 1;
- page = buf;
- refresh_text_box(dialog, box, boxh, boxw,
- cur_y, cur_x, update_text,
- data);
- }
- break;
- case 'G': /* Last page */
- case KEY_END:
-
- end_reached = 1;
- /* point to last char in buf */
- page = buf + strlen(buf);
- back_lines(boxh);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case 'K': /* Previous line */
- case 'k':
- case KEY_UP:
- if (begin_reached)
- break;
-
- back_lines(page_length + 1);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case 'B': /* Previous page */
- case 'b':
- case 'u':
- case KEY_PPAGE:
- if (begin_reached)
- break;
- back_lines(page_length + boxh);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case 'J': /* Next line */
- case 'j':
- case KEY_DOWN:
- if (end_reached)
- break;
-
- back_lines(page_length - 1);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case KEY_NPAGE: /* Next page */
- case ' ':
- case 'd':
- if (end_reached)
- break;
-
- begin_reached = 0;
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case '0': /* Beginning of line */
- case 'H': /* Scroll left */
- case 'h':
- case KEY_LEFT:
- if (hscroll <= 0)
- break;
-
- if (key == '0')
- hscroll = 0;
- else
- hscroll--;
- /* Reprint current page to scroll horizontally */
- back_lines(page_length);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case 'L': /* Scroll right */
- case 'l':
- case KEY_RIGHT:
- if (hscroll >= MAX_LEN)
- break;
- hscroll++;
- /* Reprint current page to scroll horizontally */
- back_lines(page_length);
- refresh_text_box(dialog, box, boxh, boxw, cur_y,
- cur_x, update_text, data);
- break;
- case KEY_ESC:
- if (on_key_esc(dialog) == KEY_ESC)
- done = true;
- break;
- case KEY_RESIZE:
- back_lines(height);
- delwin(box);
- delwin(dialog);
- on_key_resize();
- goto do_resize;
- default:
- for (i = 0; keys[i]; i++) {
- if (key == keys[i]) {
- done = true;
- break;
- }
- }
- }
- }
- delwin(box);
- delwin(dialog);
- if (_vscroll) {
- const char *s;
-
- s = buf;
- *_vscroll = 0;
- back_lines(page_length);
- while (s < page && (s = strchr(s, '\n'))) {
- (*_vscroll)++;
- s++;
- }
- }
- if (_hscroll)
- *_hscroll = hscroll;
- return key;
-}
-
-/*
- * Go back 'n' lines in text. Called by dialog_textbox().
- * 'page' will be updated to point to the desired line in 'buf'.
- */
-static void back_lines(int n)
-{
- int i;
-
- begin_reached = 0;
- /* Go back 'n' lines */
- for (i = 0; i < n; i++) {
- if (*page == '\0') {
- if (end_reached) {
- end_reached = 0;
- continue;
- }
- }
- if (page == buf) {
- begin_reached = 1;
- return;
- }
- page--;
- do {
- if (page == buf) {
- begin_reached = 1;
- return;
- }
- page--;
- } while (*page != '\n');
- page++;
- }
-}
-
-/*
- * Print a new page of text.
- */
-static void print_page(WINDOW *win, int height, int width, update_text_fn
- update_text, void *data)
-{
- int i, passed_end = 0;
-
- if (update_text) {
- char *end;
-
- for (i = 0; i < height; i++)
- get_line();
- end = page;
- back_lines(height);
- update_text(buf, page - buf, end - buf, data);
- }
-
- page_length = 0;
- for (i = 0; i < height; i++) {
- print_line(win, i, width);
- if (!passed_end)
- page_length++;
- if (end_reached && !passed_end)
- passed_end = 1;
- }
- wnoutrefresh(win);
-}
-
-/*
- * Print a new line of text.
- */
-static void print_line(WINDOW * win, int row, int width)
-{
- char *line;
-
- line = get_line();
- line += MIN(strlen(line), hscroll); /* Scroll horizontally */
- wmove(win, row, 0); /* move cursor to correct line */
- waddch(win, ' ');
- waddnstr(win, line, MIN(strlen(line), width - 2));
-
- /* Clear 'residue' of previous line */
-#if OLD_NCURSES
- {
- int x = getcurx(win);
- int i;
- for (i = 0; i < width - x; i++)
- waddch(win, ' ');
- }
-#else
- wclrtoeol(win);
-#endif
-}
-
-/*
- * Return current line of text. Called by dialog_textbox() and print_line().
- * 'page' should point to start of current line before calling, and will be
- * updated to point to start of next line.
- */
-static char *get_line(void)
-{
- int i = 0;
- static char line[MAX_LEN + 1];
-
- end_reached = 0;
- while (*page != '\n') {
- if (*page == '\0') {
- end_reached = 1;
- break;
- } else if (i < MAX_LEN)
- line[i++] = *(page++);
- else {
- /* Truncate lines longer than MAX_LEN characters */
- if (i == MAX_LEN)
- line[i++] = '\0';
- page++;
- }
- }
- if (i <= MAX_LEN)
- line[i] = '\0';
- if (!end_reached)
- page++; /* move past '\n' */
-
- return line;
-}
-
-/*
- * Print current position
- */
-static void print_position(WINDOW * win)
-{
- int percent;
-
- wattrset(win, dlg.position_indicator.atr);
- wbkgdset(win, dlg.position_indicator.atr & A_COLOR);
- percent = (page - buf) * 100 / strlen(buf);
- wmove(win, getmaxy(win) - 3, getmaxx(win) - 9);
- wprintw(win, "(%3d%%)", percent);
-}
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