static void ensureCursorDisplayed( void )
{
int len, wc, diff;
if( EditFlags.Modeless && ( CurrentFile != NULL ) ) {
len = WindowAuxInfo( CurrentWindow, WIND_INFO_TEXT_LINES );
if( CurrentPos.line < LeftTopPos.line ||
CurrentPos.line > LeftTopPos.line + len - 1 ) {
SetCurrentLine( CurrentPos.line );
}
wc = VirtualColumnOnCurrentLine( CurrentPos.column ) - LeftTopPos.column;
if( !ColumnInWindow( wc, &diff ) ) {
SetCurrentColumn( CurrentPos.column );
}
}
}
/*
* CheckLeftColumn - check if CurrentPos.column and LeftTopPos.column give a position
* in the window; if not, LeftTopPos.column is changed appropriatly
*/
bool CheckLeftColumn( void )
{
int diff, wc, pad;
bool rc;
wc = VirtualColumnOnCurrentLine( CurrentPos.column ) - LeftTopPos.column;
rc = ColumnInWindow( wc, &diff );
if( !rc ) {
// |diff| is already at least 1
pad = ( EditFlags.JumpyScroll ) ? SCROLL_HLINE - 1 : 0;
if( diff < 0 ) {
LeftTopPos.column += diff - pad;
} else {
LeftTopPos.column += diff + pad;
}
if( LeftTopPos.column < 0 ) {
LeftTopPos.column = 0;
}
}
return( rc );
} /* CheckLeftColumn */