/usr/lib/python2.7/dist-packages/cairocffi/xcb.py is in python-cairocffi 0.7.2-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 | # coding: utf8
"""
cairocffi.xcb
~~~~~~~~~~~~~
Bindings for XCB surface objects using xcffib.
:copyright: Copyright 2014 by Simon Sapin
:license: BSD, see LICENSE for details.
"""
from xcffib import visualtype_to_c_struct
from . import cairo, constants
from .surfaces import Surface, SURFACE_TYPE_TO_CLASS
class XCBSurface(Surface):
"""The XCB surface is used to render cairo graphics to X Window System
windows and pixmaps using the XCB library.
Creates a cairo surface that targets the given drawable (pixmap or window).
.. note::
This class works using objects and libraries in :mod:`xcffib`
:param conn: The :class:`xcffib.Connection` for an open XCB connection
:param drawable:
An XID corresponding to an XCB drawable (a pixmap or a window)
:param visual: An :class:`xcffib.xproto.VISUALTYPE` object.
:param width: integer
:param height: integer
"""
def __init__(self, conn, drawable, visual, width, height):
c_visual = visualtype_to_c_struct(visual)
p = cairo.cairo_xcb_surface_create(
conn._conn, drawable, c_visual, width, height)
Surface.__init__(self, p)
def set_size(self, width, height):
"""
Informs cairo of the new size of the X Drawable underlying the surface.
For a surface created for a Window (rather than a Pixmap), this
function must be called each time the size of the window changes (for
a subwindow, you are normally resizing the window yourself, but for a
toplevel window, it is necessary to listen for
:class:`xcffib.xproto.ConfigureNotifyEvent`'s).
A Pixmap can never change size, so it is never necessary to call this
function on a surface created for a Pixmap.
:param width: integer
:param height: integer
"""
cairo.cairo_xcb_surface_set_size(self._pointer, width, height)
self._check_status()
SURFACE_TYPE_TO_CLASS[constants.SURFACE_TYPE_XCB] = XCBSurface
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