Is it possible for Auto indentation to mark lines as foldpoints?

[jacobslusser]

Is it possible for Auto indentation to mark lines as foldpoints?

[theryan722]

I really wish we could set labels so not everything is posted as an issue.

[Ahmad45123]

IDK if its implemented in ScintillaNET or not but in native scintilla, I think you will use this: SCI_GETFOLDEXPANDED

[jacobslusser]

The SCI_GETFOLDEXPANDED constants translates to the Line.Expanded property in ScintillaNET. That will tell you whether the line is marked as expanded or collapsed, however, to determine if a line is a fold point you should test for the FoldLevelFlags.Header flag. i.e.

if((scintilla.Lines[0].FoldLevelFlags & FoldLevelFlags.Header) > 0)
{
    // ...
}

[theryan722]

Sorry, but the code isn't working for me.

[jacobslusser]

Can you be more specific? It's difficult for me to provide assistance with such little information to go on....

When I run the following code, the output matches 1 for 1 with my fold points:

foreach (var line in scintilla.Lines)
{
    var message = "Lines[{0}] - fold level: {1}, is fold point: {2}";
    Debug.WriteLine(message, line.Index, line.FoldLevel, ((line.FoldLevelFlags & FoldLevelFlags.Header) > 0));
}

[theryan722]

Okay sorry about that. You example fixed my issue, however I am having trouble folding/expanding a line.

Here is what I have:

public object LineIsFoldPoint(bool linenum)
{
    return ((Scintilla1.Lines(linenum).FoldLevelFlags & FoldLevelFlags.Header) > 0);
}

public void FoldAll()
{
    foreach (Line ln in Scintilla1.Lines) {
        if (LineIsFoldPoint(ln.Index)) {
            ln.FoldLine(FoldAction.Contract);
        }
    }
}

The FoldAll() method does nothing for me, the same if I try FoldAction.Toggle or FoldAction.Expand

[jacobslusser]

Scintilla.FoldAll(FoldAction.Toggle) does exactly as advertised for me....

Are you implementing custom folding or using one provided by a lexer? If you are implementing your own, the chances are your error is in your implementation. Custom folding can be difficult. Studying the Scintilla lexer source code can be helpful here as can be helper methods which dump your current FoldLevel and FoldLevelFlags as the sample I have above does.

[theryan722]

WHAT, how did I not see this?! Thank you!