public override int GetFirstInterestedOffset(int startOffset)
{
if (Lines == null)
{
return(startOffset);
}
var location = CurrentContext.Document.GetLocation(startOffset);
var columnNumberWithOffset = _columnWidthCalculator.GetColumn(Lines, location);
var locationLine = location.Line;
if (columnNumberWithOffset.ColumnNumber == ColumnWidth.Length - 1)
{
if (Lines.Length == locationLine)
{
return(CurrentContext.VisualLine.LastDocumentLine.EndOffset);
}
else
{
columnNumberWithOffset = new ColumnNumberWithOffset
{
ColumnNumber = 0,
OffsetInLine = Lines[locationLine][0]
};
locationLine++;
}
}
_tabWidth = ColumnWidth[columnNumberWithOffset.ColumnNumber] -
Lines[locationLine - 1][columnNumberWithOffset.ColumnNumber];
return(CurrentContext.Document.GetOffset(new TextLocation(locationLine, columnNumberWithOffset.OffsetInLine)));
}
private void OnDocumentChanging(object sender, DocumentChangeEventArgs e)
{
var affectedLocation = Document.GetLocation(e.Offset);
var columnWidth = _elementGenerator.ColumnWidth;
var columnWidthByLine = _elementGenerator.Lines;
var columnNumberWithOffset = _columnWidthCalculator.GetColumn(columnWidthByLine, affectedLocation);
var myColumn = columnNumberWithOffset.ColumnNumber;
var oldWidth = columnWidthByLine[affectedLocation.Line - 1][myColumn];
var length = e.InsertionLength - e.RemovalLength;
columnWidthByLine[affectedLocation.Line - 1][myColumn] = oldWidth + length;
if (length > 0)
{
if (oldWidth + length > columnWidth[myColumn])
{
columnWidth[columnNumberWithOffset.ColumnNumber] = oldWidth + length;
UpdateLines();
}
}
else
{
var maxLength = columnWidthByLine.Select(x => x[myColumn]).Max();
if (maxLength != columnWidth[myColumn])
{
columnWidth[myColumn] = maxLength;
UpdateLines();
}
}
}