diff options
| author | June McEnroe <june@causal.agency> | 2018-09-05 17:10:26 -0400 |
|---|---|---|
| committer | June McEnroe <june@causal.agency> | 2018-09-05 17:10:26 -0400 |
| commit | 0cf067315de4960522df360f8e1b2b04a23db7f0 (patch) | |
| tree | 1d656c3196660e62df297e7edbfe5073ce6147d4 | |
| parent | Use PascalCase for constants (diff) | |
| download | catgirl-0cf067315de4960522df360f8e1b2b04a23db7f0.tar.gz catgirl-0cf067315de4960522df360f8e1b2b04a23db7f0.zip | |
Preserve scroll position when new lines appear
| -rw-r--r-- | ui.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/ui.c b/ui.c index 8d13ea5..879fea3 100644 --- a/ui.c +++ b/ui.c @@ -131,7 +131,7 @@ static struct View *viewTag(struct Tag tag) { view->log = newpad(LogLines, COLS); wsetscrreg(view->log, 0, lastLogLine()); scrollok(view->log, true); - wmove(view->log, lastLogLine() - logHeight(view) + 2, 0); + wmove(view->log, lastLogLine(), 0); view->scroll = LogLines; view->mark = true; @@ -266,7 +266,7 @@ static const wchar_t *parseColor(short *pair, const wchar_t *str) { return str; } -static void wordWrap(WINDOW *win, const wchar_t *str) { +static int wordWrap(WINDOW *win, const wchar_t *str) { size_t len = wcscspn(str, L" "); size_t width = 1; for (size_t i = 0; i < len; ++i) { @@ -279,8 +279,10 @@ static void wordWrap(WINDOW *win, const wchar_t *str) { if (width >= (size_t)(xMax - x)) { waddch(win, '\n'); + return 1; } else { waddch(win, ' '); + return 0; } } @@ -295,9 +297,10 @@ static const wchar_t IRCCodes[] = { L'\0', }; -static void addIRC(WINDOW *win, const wchar_t *str) { +static int addIRC(WINDOW *win, const wchar_t *str) { attr_t attr = A_NORMAL; short pair = -1; + int lines = 0; for (;;) { size_t cc = wcscspn(str, IRCCodes); wattr_set(win, attr | attr8(pair), 1 + pair8(pair), NULL); @@ -306,7 +309,7 @@ static void addIRC(WINDOW *win, const wchar_t *str) { str = &str[cc]; switch (*str++) { - break; case L' ': wordWrap(win, str); + break; case L' ': lines += wordWrap(win, str); break; case IRCBold: attr ^= A_BOLD; break; case IRCItalic: attr ^= A_ITALIC; break; case IRCUnderline: attr ^= A_UNDERLINE; @@ -315,6 +318,7 @@ static void addIRC(WINDOW *win, const wchar_t *str) { break; case IRCReset: attr = A_NORMAL; pair = -1; } } + return lines; } static void uiStatus(void) { @@ -412,16 +416,21 @@ void uiTopic(struct Tag tag, const char *topic) { void uiLog(struct Tag tag, enum UIHeat heat, const wchar_t *line) { struct View *view = viewTag(tag); + int lines = 1; waddch(view->log, '\n'); if (view->mark && heat > UICold) { - if (!view->unread++) waddch(view->log, '\n'); + if (!view->unread++) { + lines++; + waddch(view->log, '\n'); + } if (heat > UIWarm) { view->hot = true; beep(); // TODO: Notification. } uiStatus(); } - addIRC(view->log, line); + lines += addIRC(view->log, line); + if (view->scroll != LogLines) view->scroll -= lines; } void uiFmt(struct Tag tag, enum UIHeat heat, const wchar_t *format, ...) { |