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Do not replace the boot log text completely on every print - that 

causes horrible flicker.  Instead append it and scroll to the caret.
This commit is contained in:
uwe 2003-12-23 15:08:33 +00:00
parent 75fa5559f5
commit f35f57125f
1 changed files with 13 additions and 17 deletions
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30
sys/arch/hpc/stand/hpcboot/menu/menu.cpp
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@ -1,4 +1,4 @@
/* -*-C++-*- $NetBSD: menu.cpp,v 1.5 2002/03/25 17:23:19 uch Exp $ */
/* -*-C++-*- $NetBSD: menu.cpp,v 1.6 2003/12/23 15:08:33 uwe Exp $ */
/*-
* Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -340,25 +340,19 @@ ConsoleTabWindow::print(TCHAR *buf, BOOL force_display)
}
display:
// count # of '\n'
// count number of '\n'
for (cr = 0, p = buf; p = wcschr(p, TEXT('\n')); cr++, p++)
;
// total length of new buffer('\n' -> "\r\n" + '\0')
int ln = wcslen(buf) + cr + 1;
continue;
// get old buffer.
int lo = Edit_GetTextLength(_edit);
size_t sz =(lo + ln) * sizeof(TCHAR);
// total length of new buffer ('\n' -> "\r\n" + '\0')
size_t sz = (wcslen(buf) + cr + 1) * sizeof(TCHAR);
p = reinterpret_cast <TCHAR *>(malloc(sz));
if (p == NULL)
return;
memset(p, 0, sz);
Edit_GetText(_edit, p, lo + 1);
// put new buffer to end of old buffer.
TCHAR *d = p + lo;
// convert newlines
TCHAR *d = p;
while (*buf != TEXT('\0')) {
TCHAR c = *buf++;
if (c == TEXT('\n'))
@ -366,10 +360,12 @@ ConsoleTabWindow::print(TCHAR *buf, BOOL force_display)
*d++ = c;
}
*d = TEXT('\0');
// display total buffer.
Edit_SetText(_edit, p);
// Edit_Scroll(_edit, Edit_GetLineCount(_edit), 0);
// append the text and scroll
int end = Edit_GetTextLength(_edit);
Edit_SetSel(_edit, end, end);
Edit_ReplaceSel(_edit, p);
Edit_ScrollCaret(_edit);
UpdateWindow(_edit);
free(p);