Informs Pango that the way that the rendering is done
for @part has changed in a way that would prevent multiple
pieces being joined together into one drawing call. For
instance, if a subclass of #PangoRenderer was to add a stipple
option for drawing underlines, it needs to call
When the stipple changes or underlines with different stipples
might be joined together. Pango automatically calls this for
changes to colors. (See pango_renderer_set_color())
Informs Pango that the way that the rendering is done for @part has changed in a way that would prevent multiple pieces being joined together into one drawing call. For instance, if a subclass of #PangoRenderer was to add a stipple option for drawing underlines, it needs to call
<informalexample><programlisting> pango_renderer_part_changed (render, PANGO_RENDER_PART_UNDERLINE); </programlisting></informalexample>
When the stipple changes or underlines with different stipples might be joined together. Pango automatically calls this for changes to colors. (See pango_renderer_set_color())