8000 Added a TextBox widget by keflavich · Pull Request #1983 · matplotlib/matplotlib · GitHub
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Added a TextBox widget #1983

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Closed
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Added a TextBox widget #1983

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487c15a
added TextBox Widget
keflavich May 7, 2013
557adaa
lazy cursor
Jun 4, 2013
4110887
rename (de)activate, remove inconsistent active properties
Jun 4, 2013
82e3f9b
remove unused self.region
Jun 4, 2013
8ed729b
inherit/use AxesWidget
Jun 4, 2013
19fd160
cleanup __init__
Jun 4, 2013
dc4b04c
actually inherit from AxesWidget
Jun 4, 2013
32d9bb0
rely on default Text properties
Jun 4, 2013
dc8ef76
docs
Jun 4, 2013
003c931
ignore callbacks when active=False
Jun 4, 2013
e77e5e5
fix spelling of _get_text_right
Jun 4, 2013
952e122
fix spelling mouse_activate, ignore when apropriate
Jun 4, 2013
e307788
remove unused vars
Jun 4, 2013
a83b096
tab todo
Jun 4, 2013
c11973c
spell _mouse_activate correctly
Jun 4, 2013
1a2a1aa
Merge pull request #1 from mrterry/textboxwidget
keflavich Jun 4, 2013
5239d7e
spelling and formatting
Jun 5, 2013
f523505
drop float-specific formatting rules
Jun 5, 2013
42b8489
remove redraw option from set_text
Jun 5, 2013
d80083b
drop more float-specific logic
Jun 5, 2013
4b963a5
TextBox produces str values
Jun 5, 2013
aba387a
convenience function for producing TextBoxes with float values
Jun 5, 2013
a1e0207
use on_changed() convention. use drawon, too
Jun 10, 2013
a81e0b8
TextBoxFloat is a class
Jun 10, 2013
8f753d0
spelling
Jun 10, 2013
b382ceb
Merge pull request #2 from mrterry/textboxwidget
keflavich Jun 10, 2013
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use on_changed() convention. use drawon, too
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Matt Terry committed Jun 10, 2013
commit a1e0207e478589208bad6a0e622e7f0262c8a0d9
48 changes: 36 additions & 12 deletions lib/matplotlib/widgets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1702,6 +1702,8 @@ def __init__(self, ax, s='', allowed_chars=None, type=str,

*text_kwargs* :
Additional keywork arguments are passed on to self.ax.text()

Call :meth:`on_onchanged` to connect to TextBox updates
"""
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Note: I'm not familiar with the numpydoc format but we should conform to that for the sake of consistency.

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Done in my branch.

AxesWidget.__init__(self, ax)
self.ax.set_navigate(False)
Expand All @@ -1720,9 +1722,28 @@ def __init__(self, ax, s='', allowed_chars=None, type=str,
self._cursorpos = len(self.text.get_text())
self.old_callbacks = {}

self.cnt = 0
self.observers = {}

self.connect_event('button_press_event', self._mouse_activate)
self.redraw_callbacks = []
self.redraw()

def on_changed(self, func):
"""
When the textbox changes self.value, call *func* with the new value.

A connection id is returned with can be used to disconnect.
"""
cid = self.cnt
self.observers[cid] = func
self.cnt += 1
return cid

def disconnect(self, cid):
"""remove the observer with connection id *cid*"""
try:
del self.observers[cid]
except KeyError:
pass

@property
def cursor(self):
Expand All @@ -1734,13 +1755,8 @@ def cursor(self):
self._cursor.set_visible(False)
return self._cursor

def redraw(self):
for f in self.redraw_callbacks:
f()
self.canvas.draw()

def _mouse_activate(self, event):
if self.ignore(event):
if self.ignore(event) or not self.eventson:
return
if self.ax == event.inaxes:
self.begin_text_entry()
Expand All @@ -1757,7 +1773,8 @@ def begin_text_entry(self):
self._cid = self.canvas.mpl_connect('key_press_event',
self.keypress)
self.cursor.set_visible(True)
self.redraw()
if self.drawon:
self.canvas.draw()

def end_text_entry(self):
keypress_cbs = self.canvas.callbacks.callbacks['key_press_event']
Expand All @@ -1767,13 +1784,14 @@ def end_text_entry(self):
keypress_cbs[k] = self.old_callbacks.pop(k)

self.cursor.set_visible(False)
self.redraw()
if self.drawon:
self.canvas.draw()

def keypress(self, event):
"""
Parse a keypress - only allow #'s!
"""
if self.ignore(event):
if self.ignore(event) or not self.eventson:
return

newt = t = self.text.get_text()
Expand Down Expand Up @@ -1812,16 +1830,22 @@ def keypress(self, event):
self.set_text(newt)
x, y = self._get_cursor_endpoints()
self.cursor.set_xdata(x)
self.redraw()
if self.drawon:
self.canvas.draw()

def set_text(self, text):
success = False
try:
# only try to update if there's a real value
self.value = self.type(text)
success = True
except ValueError:
pass
# but always change the text
self.text.set_text(text)
if success and self.eventson:
for func in self.observers.itervalues():
func(self.value)

def _get_cursor_endpoints(self):
# to get cursor position
Expand Down
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