toggle fold - jEdit Community

toggle fold

Submitted by McSwell on Tuesday, 13 February, 2007 - 16:40

I would like to assign a shortcut key to toggle fold. Thus, if the caret is on a line where it makes sense, ^T (let's say) would collapse the fold if the fold was already open, and expand it fully if the fold was already closed.

I don't see any obvious way to do that--there's no command in the Global Options | Shortcuts list that jumps out at me, although I could have missed it. (Nah. I thought I was wrong once, but turned out I was mistaken.)

I suppose I could write a macro, if I knew how to tell whether the current fold was folded or unfolded (and whether the current line was foldable). There must be a way, that's what the little triangles in the gutter do. But I'm not a Java programmer...

I googled this without finding anything obvious. Thanks for any pointers!

Mike Maxwell

suggestions

by cvicari on Wed, 14/02/2007 - 10:20

I gave a look at the API, and also I could not find a method to know whether a fold is collapsed or not.
If you really want to see, my suggestion is to use the class org.gjt.sp.jedit.textarea.DisplayManager, that has a method to get the next visible line and the previous one. It the current line is folded, these numbers shouldn't be contiguos

toggle fold using MouseOptionPane.java.html?

by homeathouse on Thu, 23/10/2008 - 13:13

can you use "toggle-fold" or "toggle-fold-fully" in
MouseOptionPane.java.shtml?

i am looking for a "toggle fold" setting too--a shortcut to do the same thing as clicking the fold markers in the margin (left of the line numbers).

where's the code for the fold markers? this could help

http://www.docjar.com/html/api/org/gjt/sp/jedit/options/MouseOptionPane.java.html
http://www.devdaily.com/java/jwarehouse/jEdit/org/gjt/sp/jedit/options/MouseOptionPane.java.shtml

fold collapsed?

by McSwell on Thu, 15/02/2007 - 15:52

Thanks, but that's a bit beyond what I can do... I've programmed in everything from Fortran IV to Prolog, but Java is not in my skill set!

Mike

Tracker or mailing list.

by elberry on Thu, 23/10/2008 - 16:47

I know there has been some work lately on the fold markers. You may want to bring this up in the dev mailing list, or better yet create a feature request tracker item.

https://sourceforge.net/tracker/?group_id=588&atid=350588

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feature request added

by homeathouse on Thu, 23/10/2008 - 18:25

thank you. feature request added.
https://sourceforge.net/tracker2/index.php?func=detail&aid=2190064&group_id=588&atid=350588

Here's what you're looking for...

by shlomy on Thu, 23/10/2008 - 18:56

line = textArea.getCaretLine();
if (line < textArea.getLineCount() - 1)
{
        expanded = textArea.displayManager.isLineVisible(line+1);
        if (expanded)
                textArea.collapseFold();
        else {
                pos = textArea.getCaretPosition();
                textArea.expandFold(false);
                textArea.setCaretPosition(pos);
        }
}

thanks

by homeathouse on Fri, 24/10/2008 - 00:05

thanks

update

by homeathouse on Thu, 30/10/2008 - 18:53

lines=textArea.getLineCount();
cursor_line=textArea.getCaretLine();
cursor_line_next=cursor_line+1;
cursor_line_next_is_visible=textArea.displayManager.isLineVisible(cursor_line_next);
// Macros.message(view,
// "cursor line is "+cursor_line+"\n"+
// "cursor line next is "+cursor_line_next+"\n"+
// "line "+cursor_line_next+" is visible? "+cursor_line_next_is_visible+"\n"+
// ""
// );
if(cursor_line<lines){
if(cursor_line_next_is_visible){
textArea.collapseFold(cursor_line);
}
else{
textArea.expandFold(true);
}
}

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