Reformat Text / Code ?

We have stubs of methods you can implement in your SyntaxLanguage class to do formatting. Both the FormatDocument and FormatSelection methods call a virtual FormatTextRange method. You can place functionality in a FormatTextRange override to do the actual formatting. I don't believe any of our current languages have implementations of this yet but that is where you would do it.

If you do that, you should also override FormattingSupported to return true.

thank you, i'll try this

I am trying to implement this and inserted a FormatTextRange sub into my language.
However, I am wondering what I am supposed to do inside of this sub to do the actual formatting. Do you have a code sample for me?

I managed to get the code working.
However, when I format the code, the caret position is not retained even though I set the option RetainSelection. I assume this is because the caret position was inside the changed text.
I therefore manually reset the caret position which works fine. However, now I see the following:
- when I call FormatDocument, the editor scrolls to the end of the document
- a split-second later, the original position is retained through my own code which I execute right after FormatDocument returns.

This is all understandable and ok. However, I am looking for a way to prevent the editor from scrolling temporarily to remove the unwanted flicker. I worked around it by temporarily setting visible=false. I can reduce the flicker this way but not completely remove it. So I am wondering if there is something else I can try. I tried SuspendLayout/Resumelayout but this won't work. Any hints? Thx!

In that method override you'll just want to do a Document.ReplaceText as the main final operation.

What about trying Suspend/Resume painting on the SyntaxEditor control to help with the flicker?

that did it...! thx!

How did you keep the editor from scrolling after replacing the text? Here's what I wrote, but it doesn't prevent the Editor control from scrolling.

C# code
int caretOffset = Editor.Caret.Offset;
Editor.SuspendPainting();
Editor.Document.ReplaceText(DocumentModificationType.ReplaceAll,
0,
Editor.Document.Length,
Editor.Document.Text));
Editor.Caret.Offset = caretOffset;
Editor.ResumePainting();

Maybe store the selected view's FirstVisibleDisplayLineIndex and FirstVisibleX, then restore before resuming painting?

Thanks, that seems to do the trick.