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matplotlib/lib/matplotlib/container.py at master · staticfloat/matplotlib · GitHub
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matplotlib
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container.py
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matplotlib
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lib
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matplotlib
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container.py
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import
matplotlib
.
cbook
as
cbook
class
Container
(
tuple
):
"""
Base class for containers.
"""
def
__repr__
(
self
):
return
"<Container object of %d artists>"
%
(
len
(
self
))
def
__new__
(
cls
,
*
kl
,
**
kwargs
):
return
tuple
.
__new__
(
cls
,
kl
[
0
])
def
__init__
(
self
,
kl
,
label
=
None
):
self
.
eventson
=
False
# fire events only if eventson
self
.
_oid
=
0
# an observer id
self
.
_propobservers
=
{}
# a dict from oids to funcs
self
.
_remove_method
=
None
self
.
set_label
(
label
)
def
set_remove_method
(
self
,
f
):
self
.
_remove_method
=
f
def
remove
(
self
):
for
c
in
self
:
c
.
remove
()
if
self
.
_remove_method
:
self
.
_remove_method
()
def
get_label
(
self
):
"""
Get the label used for this artist in the legend.
"""
return
self
.
_label
def
set_label
(
self
,
s
):
"""
Set the label to *s* for auto legend.
ACCEPTS: any string
"""
self
.
_label
=
s
self
.
pchanged
()
def
add_callback
(
self
,
func
):
"""
Adds a callback function that will be called whenever one of
the :class:`Artist`'s properties changes.
Returns an *id* that is useful for removing the callback with
:meth:`remove_callback` later.
"""
oid
=
self
.
_oid
self
.
_propobservers
[
oid
]
=
func
self
.
_oid
+=
1
return
oid
def
remove_callback
(
self
,
oid
):
"""
Remove a callback based on its *id*.
.. seealso::
:meth:`add_callback`
For adding callbacks
"""
try
:
del
self
.
_propobservers
[
oid
]
except
KeyError
:
pass
def
pchanged
(
self
):
"""
Fire an event when property changed, calling all of the
registered callbacks.
"""
for
oid
,
func
in
self
.
_propobservers
.
items
():
func
(
self
)
def
get_children
(
self
):
return
list
(
cbook
.
flatten
(
self
))
class
BarContainer
(
Container
):
def
__init__
(
self
,
patches
,
errorbar
=
None
,
**
kwargs
):
self
.
patches
=
patches
self
.
errorbar
=
errorbar
Container
.
__init__
(
self
,
patches
,
**
kwargs
)
class
ErrorbarContainer
(
Container
):
def
__init__
(
self
,
lines
,
has_xerr
=
False
,
has_yerr
=
False
,
**
kwargs
):
self
.
lines
=
lines
self
.
has_xerr
=
has_xerr
self
.
has_yerr
=
has_yerr
Container
.
__init__
(
self
,
lines
,
**
kwargs
)
class
StemContainer
(
Container
):
def
__init__
(
self
,
markerline_stemlines_baseline
,
**
kwargs
):
markerline
,
stemlines
,
baseline
=
markerline_stemlines_baseline
self
.
markerline
=
markerline
self
.
stemlines
=
stemlines
self
.
baseline
=
baseline
Container
.
__init__
(
self
,
markerline_stemlines_baseline
,
**
kwargs
)
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