valid UTF-8 text to shape.
the length (in bytes) of item_text. -1 means nul-terminated text.
text of the paragraph (see details). May be NULL.
the length (in bytes) of paragraph_text. -1 means nul-terminated text.
PangoAnalysis structure from pango_itemize().
glyph string in which to store results.
1.32
Given a segment of text and the corresponding PangoAnalysis structure returned from pango_itemize(), convert the characters into glyphs. You may also pass in only a substring of the item from pango_itemize().
This is similar to pango_shape(), except it also can optionally take the full paragraph text as input, which will then be used to perform certain cross-item shaping interactions. If you have access to the broader text of which item_text is part of, provide the broader text as paragraph_text. If paragraph_text is NULL, item text is used instead.