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| author | Max Kellermann <max@duempel.org> | 2008-09-16 18:52:55 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2008-09-16 18:52:55 +0200 |
| commit | ff86aacd52311a9da80a147226d28f46b35f2ef8 (patch) | |
| tree | f500ccb7b147979b94e3b1cf20cfe53a26e1d54e /src | |
| parent | 76378f6b0116c7fd438791d3e16ed9e542719545 (diff) | |
| download | mpd-ff86aacd52311a9da80a147226d28f46b35f2ef8.tar.gz mpd-ff86aacd52311a9da80a147226d28f46b35f2ef8.tar.xz mpd-ff86aacd52311a9da80a147226d28f46b35f2ef8.zip | |
list_window: update variables without looping
Apparently, somebody was too lazy to derive the formulas for cursor
movement, and wrote lots of while loops.
Diffstat (limited to '')
| -rw-r--r-- | src/list_window.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/src/list_window.c b/src/list_window.c index af8abc9d4..967f56a7b 100644 --- a/src/list_window.c +++ b/src/list_window.c @@ -67,14 +67,18 @@ list_window_reset(list_window_t *lw) void list_window_check_selected(list_window_t *lw, unsigned length) { - while (lw->start > 0 && lw->start + lw->rows > length) - lw->start--; + if (lw->start + lw->rows > length) { + if (length > lw->rows) + lw->start = length - lw->rows; + else + lw->start = 0; + } - while (lw->selected < lw->start) - lw->selected++; + if (lw->selected < lw->start) + lw->selected = lw->start; - while (lw->selected > 0 && length > 0 && lw->selected >= length) - lw->selected--; + if (length > 0 && lw->selected >= length) + lw->selected = length - 1; } void @@ -151,13 +155,13 @@ list_window_paint(list_window_t *lw, int show_cursor = !(lw->flags & LW_HIDE_CURSOR); if (show_cursor) { - while (lw->selected < lw->start) { - lw->start--; + if (lw->selected < lw->start) { + lw->start = lw->selected; lw->clear=1; } - while (lw->selected >= lw->start+lw->rows) { - lw->start++; + if (lw->selected >= lw->start + lw->rows) { + lw->start = lw->selected - lw->rows + 1; lw->clear=1; } } |