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
|
#------------------------------------------------------------------------------
# Copyright (c) 2011, Enthought, Inc.
# All rights reserved.
#
# This software is provided without warranty under the terms of the BSD
# license included in enthought/LICENSE.txt and may be redistributed only
# under the conditions described in the aforementioned license. The license
# is also available online at http://www.enthought.com/licenses/BSD.txt
# Thanks for using Enthought open source!
#------------------------------------------------------------------------------
import numpy as np
from kiva.fonttools import Font
from kiva.quartz import ABCGI
class NativeScrollBar(object):
pass
class Window(object):
pass
CompiledPath = ABCGI.CGMutablePath
class GraphicsContext(ABCGI.CGLayerContext):
def __init__(self, size_or_array, *args, **kwds):
gc = kwds.pop('window_gc', None)
if not gc:
# Create a tiny base context to spawn the CGLayerContext from.
# We are better off making our Layer from the window gc since
# the data formats will match and so it will be faster to draw the
# layer.
gc = ABCGI.CGBitmapContext((1,1))
if isinstance(size_or_array, np.ndarray):
# Initialize the layer with an image.
image = ABCGI.CGImage(size_or_array)
width = image.width
height = image.height
else:
# No initialization.
image = None
width, height = size_or_array
super(GraphicsContext, self).__init__((width, height), gc, *args, **kwds)
if image is not None:
self.draw_image(image)
@classmethod
def create_from_gc(klass, gc, size_or_array, *args, **kwds):
return klass(size_or_array, gc, *args, **kwds)
def font_metrics_provider():
gc = GraphicsContext((1, 1))
gc.set_font(Font())
return gc
|
