void EraseFromCursorToEOL() {
int i;
for (i = COLUMN(TermInfo); i < MAXCOLS; i++) {
SCREENCHAR(TermInfo, ROW(TermInfo), i) = ' ';
FORMATCODE(TermInfo, ROW(TermInfo), i) = CURRENTFORMAT(TermInfo);
}
}
void EraseFromSOLToCursor() {
int i;
for (i = 0; i < COLUMN(TermInfo); i++) {
SCREENCHAR(TermInfo, ROW(TermInfo), i) = ' ';
FORMATCODE(TermInfo, ROW(TermInfo), i) = FORMATCODE(TermInfo, ROW(TermInfo), 0);
}
}
void PrintChar(char c) {
int memMove, i;
SCREENCHAR(TermInfo, ROW(TermInfo), COLUMN(TermInfo)) = c;
FORMATCODE(TermInfo, ROW(TermInfo), COLUMN(TermInfo)) = CURRENTFORMAT(TermInfo);
if (COLUMN(TermInfo) == MAXCOLS - 1) {
if (ROW(TermInfo) == MAXROWS - 1 || (DOUBLELINE(TermInfo) && ROW(TermInfo) >= MAXROWS - 2)) {
COLUMN(TermInfo) = 0;
if (DOUBLELINE(TermInfo)) {
memMove = 2;
}
else {
memMove = 1;
}
for (i = 0; i < memMove; i++) {
MoveMemory((LPSTR)(SCREEN(TermInfo)), (LPSTR)(SCREEN(TermInfo)) + MAXCOLS, (MAXROWS - 1) * MAXCOLS);
FillMemory((LPSTR)(SCREEN(TermInfo) + (MAXROWS - 1)), MAXCOLS, ' ');
MoveMemory((LPBYTE)(FORMAT(TermInfo)), (LPBYTE)(FORMAT(TermInfo)) + MAXCOLS, (MAXROWS - 1) * MAXCOLS);
FillMemory((LPBYTE)(FORMAT(TermInfo) + (MAXROWS - 1)), MAXCOLS, CURRENTFORMAT(TermInfo));
}
}
else {
if (DOUBLELINE(TermInfo)) {
ROW(TermInfo) = ROW(TermInfo) + 2;
COLUMN(TermInfo) = 0;
}
else {
ROW(TermInfo)++;
COLUMN(TermInfo) = 0;
}
}
}
else {
COLUMN(TermInfo)++;
}
InvalidateRect(ghWndTerm, NULL, TRUE);
}
/*-----------------------------------------------------------------------------
FUNCTION: OutputABufferToWindow(HWND, char *, DWORD)
PURPOSE: Updates TTY Buffer with characters just received.
PARAMETERS:
hTTY - handle to the TTY child window
lpBuf - address of data buffer
dwBufLen - size of data buffer
HISTORY: Date Author Comment
5/ 8/91 BryanW Wrote it
10/27/95 AllenD Modified for MTTTY Sample
-----------------------------------------------------------------------------*/
void OutputABufferToWindow(HWND hTTY, char * lpBuf, DWORD dwBufLen)
{
RECT rect;
/*
update screen buffer with new buffer
need to do a character by character check
for special characters
*/
int i;
for ( i = 0 ; i < (int) dwBufLen; i++) {
switch (lpBuf[ i ]) {
case ASCII_BEL: // BELL CHAR
MessageBeep( 0 ) ;
break ;
case ASCII_BS: // Backspace CHAR
if (COLUMN( TTYInfo ) > 0)
COLUMN( TTYInfo ) -- ;
break ;
case ASCII_CR: // Carriage Return
COLUMN( TTYInfo ) = 0 ;
if (!NEWLINE( TTYInfo ))
break;
//
// FALL THROUGH
//
case ASCII_LF: // Line Feed
if (ROW( TTYInfo )++ == MAXROWS - 1)
{
MoveMemory( (LPSTR) (SCREEN( TTYInfo )),
(LPSTR) (SCREEN( TTYInfo ) + MAXCOLS),
(MAXROWS - 1) * MAXCOLS ) ;
FillMemory((LPSTR) (SCREEN( TTYInfo ) + (MAXROWS - 1) * MAXCOLS),
MAXCOLS, ' ' ) ;
InvalidateRect( hTTY, NULL, FALSE ) ;
ROW( TTYInfo )-- ;
}
break ;
default: // standard character
SCREENCHAR(TTYInfo, COLUMN(TTYInfo), ROW(TTYInfo)) = lpBuf[ i ];
rect.left = (COLUMN( TTYInfo ) * XCHAR( TTYInfo )) -
XOFFSET( TTYInfo ) ;
rect.right = rect.left + XCHAR( TTYInfo ) ;
rect.top = (ROW( TTYInfo ) * YCHAR( TTYInfo )) -
YOFFSET( TTYInfo ) ;
rect.bottom = rect.top + YCHAR( TTYInfo ) ;
InvalidateRect( hTTY, &rect, FALSE ) ;
//
// Line wrap
//
if (COLUMN( TTYInfo ) < MAXCOLS-1 )
COLUMN( TTYInfo )++ ;
else if (AUTOWRAP( TTYInfo ))
OutputABufferToWindow(hTTY, "\r\n", 2 ) ;
break;
}
}
MoveTTYCursor(hTTY);
return;
}
