/*
* updateRegion - update marked region
*/
static void updateRegion( void )
{
#ifdef __WIN__
if( !SelRgn.selected ) {
int min_line, max_line;
min_line = last_start_line;
if( min_line > last_start_line )
min_line = last_start_line;
max_line = last_start_line;
if( max_line < last_end_line )
max_line = last_end_line;
DCDisplaySomeLines( min_line - LeftTopPos.line, max_line - LeftTopPos.line );
last_start_line = last_end_line = 1;
return;
} else {
int min_start, max_start;
int min_end, max_end;
min_start = SelRgn.start.line;
if( min_start > last_start_line )
min_start = last_start_line;
max_start = SelRgn.start.line;
if( max_start < last_start_line )
max_start = last_start_line;
min_end = SelRgn.end.line;
if( min_end > last_end_line )
min_end = last_end_line;
max_end = SelRgn.end.line;
if( max_end < last_end_line )
max_end = last_end_line;
DCDisplaySomeLines( min_start - LeftTopPos.line, max_start - LeftTopPos.line );
DCDisplaySomeLines( min_end - LeftTopPos.line, max_end - LeftTopPos.line );
}
last_start_line = SelRgn.start.line;
last_end_line = SelRgn.end.line;
#else
markRegion( true );
DCDisplayAllLines();
#endif
} /* updateRegion */
/*
* updateRegion - update marked region
*/
static void updateRegion( void )
{
#ifdef __WIN__
if( SelRgn.selected == FALSE ) {
DCDisplaySomeLines( __min( last_start_line, last_end_line ) - LeftTopPos.line,
__max( last_start_line, last_end_line ) - LeftTopPos.line );
last_start_line = last_end_line = 1;
return;
} else {
DCDisplaySomeLines( __min( SelRgn.start.line, last_start_line ) - LeftTopPos.line,
__max( SelRgn.start.line, last_start_line ) - LeftTopPos.line );
DCDisplaySomeLines( __min( SelRgn.end.line, last_end_line ) - LeftTopPos.line,
__max( SelRgn.end.line, last_end_line ) - LeftTopPos.line );
}
last_start_line = SelRgn.start.line;
last_end_line = SelRgn.end.line;
#else
markRegion( TRUE );
DCDisplayAllLines();
#endif
} /* updateRegion */
/*
* DisplayWorkLine - display the working copy of the current line
*/
void DisplayWorkLine( bool killsFlags )
{
int i;
if( killsFlags ) {
DCDisplayAllLines();
} else {
// could speed up a little by calling directly
i = (int)( CurrentPos.line - LeftTopPos.line );
DCDisplaySomeLines( i, i );
}
} /* DisplayWorkLine */
/*
* goToLine - go to a specified line number
*/
static vi_rc goToLine( linenum lineno, bool relcurs )
{
int text_lines, tl;
linenum diff, cwl, nwl;
// linenum s, e, hiddcnt;
bool dispall, pageshift;
fcb *cfcb;
line *cline;
int pad;
vi_rc rc;
if( lineno < 1 ) {
return( ERR_NO_SUCH_LINE );
}
/*
* get pointer to requested line
*/
rc = CGimmeLinePtr( lineno, &cfcb, &cline );
if( rc != ERR_NO_ERR ) {
return( rc );
}
#if 0
if( cline->u.ld.hidden ) {
GetHiddenRange( lineno, &s, &e );
if( lineno > CurrentPos.line ) {
lineno = e + 1;
} else {
lineno = s - 1;
}
rc = CGimmeLinePtr( lineno, &cfcb, &cline );
if( rc != ERR_NO_ERR ) {
return( rc );
}
}
#endif
/*
* compute new location
*/
CurrentFcb = cfcb;
CurrentLine = cline;
diff = lineno - CurrentPos.line;
if( diff == 0 && !EditFlags.GlobalInProgress ) {
return( ERR_NO_ERR );
}
cwl = CurrentPos.line - LeftTopPos.line + 1;
nwl = cwl + diff;
/*
* if we go off the window, relocate
*/
pageshift = false;
dispall = false;
text_lines = WindowAuxInfo( current_window_id, WIND_INFO_TEXT_LINES );
if( nwl < 1 || nwl > text_lines ) {
tl = text_lines / 2;
if( !relcurs ) {
LeftTopPos.line = lineno - tl;
} else {
LeftTopPos.line = lineno + 1 - cwl;
pad = ( EditFlags.JumpyScroll ) ? 1 : 0;
if( diff > 0 ) {
LeftTopPos.line += pad;
diff += pad;
} else {
LeftTopPos.line -= pad;
diff -= pad;
}
if( diff > -tl && diff < tl && !dispall ) {
pageshift = true;
}
}
if( LeftTopPos.line < 1 ) {
assert( diff <= 0 ); // < -> <= W.Briscoe 20031003 to avoid debug build failure of
// C:\watcom\source\docs\nt) wmake -h -f ..\mif\master.mif hbook=wccerrs dotarget=nt
diff += ( 1 - LeftTopPos.line );
LeftTopPos.line = 1;
}
if( LeftTopPos.line > lineno ) {
assert( diff > 0 );
diff = LeftTopPos.line - lineno;
LeftTopPos.line = lineno;
}
dispall = true;
}
#if 0
hiddcnt = GetHiddenLineCount( LeftTopPos.line, lineno );
if( hiddcnt > 0 ) {
pageshift = false;
dispall = true;
}
#endif
if( CheckCurrentColumn() || EditFlags.Dragging ) {
// pageshift wont help if we also have to column shift
// and not really useful if dragging
dispall = true;
pageshift = false;
}
/* call SetCurrentLineNumber AFTER LeftTopPos.line set & CurrentColumn checked
*/
SetCurrentLineNumber( lineno );
if( pageshift ) {
dispall = false;
ShiftWindowUpDown( current_window_id, diff );
if( EditFlags.LineNumbers ) {
ShiftWindowUpDown( curr_num_window_id, diff );
}
if( diff > 0 ) {
DCDisplaySomeLines( text_lines - diff, text_lines - 1 );
} else {
DCDisplaySomeLines( 0, -diff - 1 );
}
}
UpdateStatusWindow();
SetWindowCursor();
if( dispall ) {
DCInvalidateAllLines(); // lines definitely invalid
DCDisplayAllLines();
}
return( ERR_NO_ERR );
} /* goToLine */
void DCDisplayAllLines( void )
{
if( CurrentInfo == NULL ) return;
DCDisplaySomeLines( 0, CurrentInfo->dc_size - 1 );
}
