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"""
"""
from const import *
import widget
class Group(widget.Widget):
"""An object for grouping together Form elements.
<pre>Group(name=None,value=None)</pre>
<dl>
<dt>name<dd>name as used in the Form
<dt>value<dd>values that are currently selected in the group
</dl>
<p>See [[gui-button]] for several examples.</p>
<p>When the value changes, an <tt>gui.CHANGE</tt> event is sent.
Although note, that when the value is a list, it may have to be sent by hand via
<tt>g.send(gui.CHANGE)</tt></p>
"""
def __init__(self,name=None,value=None):
widget.Widget.__init__(self,name=name,value=value)
self.widgets = []
def add(self,w):
"""Add a widget to this group.
<pre>Group.add(w)</pre>
"""
self.widgets.append(w)
def __setattr__(self,k,v):
_v = self.__dict__.get(k,NOATTR)
self.__dict__[k] = v
if k == 'value' and _v != NOATTR and _v != v:
self._change()
def _change(self):
self.send(CHANGE)
for w in self.widgets:
w.repaint()
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