Auto Indentation

For the SmartIndent property that fires when you press the ENTER key. You can use it to tell how many tabs to indent the next line by setting e.IndentAmount to something like 4 to indicate 4 tabs. By default SyntaxEditor calculates the indent amount based on the tab stop on the previous line.

What you can do is get a TextStream at the current caret location then move backwards and examine each Token. If for instance you are writing this for C# and you see a Token representing a { character you probably want to do something like:
e.IndentAmount++;

That would bump up the indent amount by one tab stop since you are starting a scope.

We'll expose a DocumentLine.GetTabStopLevel method for the next release that will also tell you the tabstop level of a DocumentLine.

To get the current OutliningNode, do this:
OutliningNode currentNode = editor.Document.Outlining.RootNode.FindNodeRecursive(currentOffset);

Ok I hate asking stupid questions but how to I get the contents of the current line in a string. I see GetCurrentWordText but I don't see how to select a range.

[ 04-23-2004: Message edited by: Carl Schneider ]

You can get any range with Document.GetSubstring().

You can also do this:
int lineIndex = editor.Document.Lines.IndexOf(offset);
string lineText = editor.Document.Lines[lineIndex].Text;

Here's what I have incase somebody else wants it.....
'---------------------------------------------------------------------
Private Sub editor_SmartIndent(ByVal sender As Object, ByVal e As ActiproSoftware.SyntaxEditor.SmartIndentEventArgs) Handles editor.SmartIndent

Dim CurrentEndOffset As Integer = editor.Document.CurrentView.Selection.EndOffset
Dim CurrentStartOffset As Integer = editor.Document.CurrentView.Selection.StartOffset
editor.Document.CurrentView.Selection.MoveToLineStart()
Dim LineOffset As Integer = editor.Document.CurrentView.Selection.EndOffset
Dim LineText As String = editor.Document.GetSubstring(LineOffset, CurrentEndOffset - LineOffset)

Dim KeyWordEndOffset As Integer = LineText.IndexOf(" ")
If KeyWordEndOffset < 0 Then KeyWordEndOffset = LineText.Length

Select Case LineText.ToUpper.Substring(0, KeyWordEndOffset)
Case "NAMESPACE", "CLASS", "#REGION", "SUB", "FUNCTION", "IF", "ELSE", "FOR", "WHILE", "DO"
e.IndentAmount += 1
Case "ENDNAMESPACE", "ENDCLASS", "#ENDREGION", "ENDSUB", "ENDFUNCTION", "ENDIF", "ELSE", "NEXT", "ENDWHILE", "LOOP"

editor.Document.CurrentView.Outdent()
e.IndentAmount -= 1

End Select

editor.Document.CurrentView.Selection.StartOffset = CurrentStartOffset
editor.Document.CurrentView.Selection.EndOffset = CurrentEndOffset

End Sub
'---------------------------------------------------------------------------------

If figure this code can be done better but it shows the concept and that's where I'm at now. I would think that an "IndentPattern/OutdentPattern" section would be best implemented in the language Definition File since it seems so portable. Anywhoo, keep up the great work!

[ 04-23-2004: Message edited by: Carl Schneider ]

[ 04-23-2004: Message edited by: Carl Schneider ]