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Lasso selector #730

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Merged
merged 13 commits into from
Mar 17, 2012
Merged

Lasso selector #730

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8af797d
Change cursors and selectors to subclass Widget.
tonysyu Feb 27, 2012
5b35427
Remove call to `new_axes` in SpanSelector.
tonysyu Feb 27, 2012
e37c135
Add AxesWidget class and let it initialize `ax` and `canvas` attributes.
tonysyu Feb 27, 2012
21bca27
Add `connect_event` and `disconnect_events` to AxesWidget.
tonysyu Feb 27, 2012
c8f152a
Add default ignore method and check it in callbacks.
tonysyu Feb 28, 2012
6baa65a
Fix: save correct callback ids.
tonysyu Feb 28, 2012
0f0286e
Remove duplicate code in `SpanSelector.__init__`.
tonysyu Feb 28, 2012
8345d4c
Add LassoSelector widget with demo.
tonysyu Mar 1, 2012
adb1754
DOC: Fix sphinx class references.
tonysyu Mar 2, 2012
f169460
Fix and improve docstring.
tonysyu Mar 2, 2012
c668798
Merge branch 'base-widget' into lasso-selector
tonysyu Mar 2, 2012
fe3e2b8
Use `Path.contains_point` instead of `nxutils` function.
tonysyu Mar 12, 2012
78798f1
Add docstrings for `Lasso` and `LassoSelector`.
tonysyu Mar 12, 2012
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25 changes: 16 additions & 9 deletions lib/matplotlib/widgets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -64,15 +64,16 @@ class Widget(object):


class AxesWidget(Widget):
"""
Widget that is connected to a single :class:`Axes`.

Attributes
----------
*ax*
The parent :class:`matplotlib.axes.Axes` for the widget
*canvas*
The parent FigureCanvas for the widget
"""Widget that is connected to a single :class:`~matplotlib.axes.Axes`.

Attributes:

*ax* : :class:`~matplotlib.axes.Axes`
The parent axes for the widget
*canvas* : :class:`~matplotlib.backend_bases.FigureCanvasBase` subclass
The parent figure canvs for the widget.
*active* : bool
If False, the widget does not respond to events.
"""
def __init__(self, ax):
self.ax = ax
Expand All @@ -81,10 +82,16 @@ def __init__(self, ax):
self.active = True

def connect_event(self, event, callback):
"""Connect callback with an event.

This should be used in lieu of `figure.canvas.mpl_connect` since this
function stores call back ids for later clean up.
"""
cid = self.canvas.mpl_connect(event, callback)
self.cids.append(cid)

def disconnect_events(self):
"""Disconnect all events created by this widget."""
for c in self.cids:
self.canvas.mpl_disconnect(c)

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