menuconfig: Extend dialog_textbox so that it can return to a scrolled position
We can now display other UI elements (menus) "on top" of a textbox and then
seemingly come back to it in the same state it was left.
Signed-off-by: Benjamin Poirier <bpoirier@suse.de>
Signed-off-by: Michal Marek <mmarek@suse.cz>
diff --git a/scripts/kconfig/lxdialog/textbox.c b/scripts/kconfig/lxdialog/textbox.c
index eb4ee92a..506a095 100644
--- a/scripts/kconfig/lxdialog/textbox.c
+++ b/scripts/kconfig/lxdialog/textbox.c
@@ -51,7 +51,7 @@
* keys is a null-terminated array
*/
int dialog_textbox(const char *title, const char *tbuf, int initial_height,
- int initial_width, int *keys)
+ int initial_width, int *keys, int *_vscroll, int *_hscroll)
{
int i, x, y, cur_x, cur_y, key = 0;
int height, width, boxh, boxw;
@@ -65,6 +65,15 @@
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 < 8 || width < 8)
@@ -275,6 +284,19 @@
}
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;
}