Java TreeViewer SWT.RIGHT_TO_LEFT

Question

I work on a Eclipse Plugin which have two TreeViewer, one of them with the parameter SWT.RIGHT_TO_LEFT. This looks like this:

As you see the Tree Structure is drawn from right to left and that is what i need. But and here is my problem, the Text gets also inverted but only when special characters are in the string. PID.5.7 is transformed to 7.5.PID. Here is how i create TreeViewer and the Text:

xmlTreeOut = new TreeViewer(composite, SWT.RIGHT_TO_LEFT | SWT.DOUBLE_BUFFERED);
...
xmlTreeOut.getTree().addPaintListener(new PaintListener() {
public void paintControl(PaintEvent e) {
        //loop over treeItems and for each
        ...
        TextLayout textLayout = new TextLayout(Display.getDefault());
        textLayout.setText(xmlName + xmlValue);
        textLayout.draw(event.gc, root.getBounds().x + 2, root.getBounds().y + 1);
        ...
    }
});

Does anyone have a fix for this problem? I would like to have my String exactly as I write it in the TextLayout.

EDIT:

I added the mentioned

textLayout.setOrientation(SWT.RIGHT_TO_LEFT);

Now my output is like this:

As you can see it worked for Strings like PID.7.5 but if there are Strings seperated with space and only containing special characters its inversed. Like "MSH.1 |" becomes "| MSH.1"

(removed the Style2 and use only one style in TextLayout)

EDIT 2:

WORKAROUND SOLUTION:

I test now if my String starts with a "word" which has no a-z, A-Z I simply add a "x" with StyleColor = WHITE in front. This way all values are displeyed correctly.

Answer 1

I haven't tested this, but the method TextLayout#setOrientation(int orientation) looks like what you need:

Sets the orientation of the receiver, which must be one of SWT.LEFT_TO_RIGHT or SWT.RIGHT_TO_LEFT.

Just set it to SWT.LEFT_TO_RIGHT for both TreeViewers (or maybe SWT.RIGHT_TO_LEFT for the right TreeViewer to invert the previous right-to-left ?).