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| author | Cheng Renquan <crquan@gmail.com> | 2011-09-01 10:52:21 -0700 |
|---|---|---|
| committer | Michal Marek <mmarek@suse.cz> | 2011-09-09 14:40:08 +0200 |
| commit | e631a57a19e103c3bb59495b236634ec62e2a850 (patch) | |
| tree | abcd76bf12c0ea7d6a34f16a0d1b874411d4d827 /scripts | |
| parent | 5ea9f64ffc073bf2882f6aa83b0dad3609b1e67a (diff) | |
| download | lwn-e631a57a19e103c3bb59495b236634ec62e2a850.tar.gz lwn-e631a57a19e103c3bb59495b236634ec62e2a850.zip | |
scripts/kconfig/nconf: fix editing long strings
The original dialog_inputbox doesn't work with longer than prompt_width
strings, here fixed it in this way:
1) add variable cursor_form_win to record cursor of form_win,
keep its value always between [0, prompt_width-1];
reuse the original cursor_position as cursor of the string result,
use (cursor_position-cursor_form_win) as begin offset to show part of
the string in form_win;
Signed-off-by: Cheng Renquan <crquan@gmail.com>
Cc: Arnaud Lacombe <lacombar@gmail.com>
Cc: Nir Tzachar <nir.tzachar@gmail.com>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/kconfig/nconf.gui.c | 29 |
1 files changed, 23 insertions, 6 deletions
diff --git a/scripts/kconfig/nconf.gui.c b/scripts/kconfig/nconf.gui.c index d64bc1c24c20..4b9d8b66087d 100644 --- a/scripts/kconfig/nconf.gui.c +++ b/scripts/kconfig/nconf.gui.c @@ -367,6 +367,7 @@ int dialog_inputbox(WINDOW *main_window, int i, x, y; int res = -1; int cursor_position = strlen(init); + int cursor_form_win; char *result = *resultp; if (strlen(init)+1 > *result_len) { @@ -410,7 +411,9 @@ int dialog_inputbox(WINDOW *main_window, fill_window(prompt_win, prompt); mvwprintw(form_win, 0, 0, "%*s", prompt_width, " "); - mvwprintw(form_win, 0, 0, "%s", result); + 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); @@ -436,6 +439,8 @@ int dialog_inputbox(WINDOW *main_window, &result[cursor_position], len-cursor_position+1); cursor_position--; + cursor_form_win--; + len--; } break; case KEY_DC: @@ -443,18 +448,22 @@ int dialog_inputbox(WINDOW *main_window, 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 < min(*result_len, prompt_width)) + if (cursor_position < len) { cursor_position++; + cursor_form_win++; + } break; case KEY_DOWN: case KEY_LEFT: - if (cursor_position > 0) + if (cursor_position > 0) { cursor_position--; + cursor_form_win--; + } break; default: if ((isgraph(res) || isspace(res))) { @@ -470,16 +479,24 @@ int dialog_inputbox(WINDOW *main_window, 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); - wmove(form_win, 0, cursor_position); + 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); |