Obtains the position of the Layout used to render text in the entry, in widget coordinates.
Useful if you want to line up the text in an entry with some other text, e.g. when using the entry to implement editable cells in a sheet widget.
Also useful to convert mouse events into coordinates inside the Layout, e.g. to take some action if some part of the entry text is clicked.
Note that as the user scrolls around in the entry the offsets will change; you’ll need to connect to the “notify:
scroll_offset” signal to track this. Remember when using the
Layout functions you need to convert to and from pixels using
Keep in mind that the layout text may contain a preedit string, so layout_index_to_text_index and text_index_to_layout_index are needed to convert byte indices in the layout to byte indices in the entry contents.
location to store X offset of layout, or null
location to store Y offset of layout, or null