How to use InlayModel.addBlockElement to have multiline text

Hello, i have a very hard time figuring out how to properly use InlayModel.addBlockElement. I want automatic multiline text splitting if the text is to long. I have implemented EditorCustomElementRenderer and tried to use a JBTextArea with it but my problem is the painting.

I have no clue how to draw the whole JBTextArea and not only the string with graphics.drawString, because that is single line.

See my class:

public class MyClass implements EditorCustomElementRenderer {

    private JBTextArea textArea;
    private Color color;
    public MyClass(final String problemMessage, Color color) {
        textArea = new JBTextArea(problemMessage);
        textArea.setLineWrap(true);
        textArea.setWrapStyleWord(true);
        this.color = color;
    }

    @Override
    public void paint(@NotNull Inlay inlay, @NotNull Graphics graphics, @NotNull Rectangle targetRegion, @NotNull TextAttributes textAttributes) {
        Editor editor = inlay.getEditor();
        EditorColorsScheme colorsScheme = editor.getColorsScheme();

        graphics.setFont(colorsScheme.getFont(EditorFontType.PLAIN));
        graphics.setColor(color);

        // todo how to draw the textArea instead of the string?
        graphics.drawString(textArea.getText(), targetRegion.x, targetRegion.y + editor.getAscent());
    }

Thanks a lot.