def update_layout(cairo_context: cairocffi.Context,
layout: pangocffi.Layout) -> None:
"""
Updates the private Pango ``Context`` of a Pango ``Layout`` created with
:meth:`create_layout()` to match the current transformation and target
surface of a Cairo context.
:param cairo_context:
a Cairo context
:param layout:
a Pango layout
"""
cairo_t_pointer = _get_cairo_t_from_cairo_ctx(cairo_context)
pangocairo.pango_cairo_update_layout(cairo_t_pointer, layout.get_pointer())
def show_layout(cairo_context: cairocffi.Context,
layout: pangocffi.Layout) -> None:
"""
Draws a Pango Layout in the specified cairo context. The top-left corner
of the PangoLayout will be drawn at the current point of the cairo context.
:param cairo_context:
a Cairo context
:param layout:
a Pango layout
"""
cairo_context_pointer = _get_cairo_t_from_cairo_ctx(cairo_context)
pangocairo.pango_cairo_show_layout(cairo_context_pointer,
layout.get_pointer())
def layout_path(cairo_context: cairocffi.Context,
layout: pangocffi.Layout) -> None:
"""
Adds the text in a ``Pango.Layout`` to the current path in the specified
cairo context. The top-left corner of the ``Pango.Layout`` will be at the
current point of the cairo context.
:param cairo_context:
a Cairo context
:param layout:
a Pango layout
"""
cairo_context_pointer = _get_cairo_t_from_cairo_ctx(cairo_context)
pangocairo.pango_cairo_layout_path(cairo_context_pointer,
layout.get_pointer())
def test_layout_get_pointer_returns_identical_layout():
context = Context()
layout = Layout(context)
identical_layout = Layout.from_pointer(layout.get_pointer())
assert identical_layout.get_pointer() == layout.get_pointer()
