nltk_lite.draw.OvalWidget

Package nltk_lite :: Package draw :: Class OvalWidget

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Type OvalWidget

         object --+        
                  |        
       CanvasWidget --+    
                      |    
AbstractContainerWidget --+
                          |
                         OvalWidget

A canvas widget that places a oval around a child widget.

Attributes:

fill: The color used to fill the interior of the oval.
outline: The color used to draw the outline of the oval.
width: The width of the outline of the oval.
margin: The number of pixels space left between the child and the oval.
draggable: whether the text can be dragged by the user.

Method Summary
	`__init__(self, canvas, child, **attribs)` Create a new oval widget.
(any)	`__getitem__(self, attr)` Return the value of the attribute `attr`.
`None`	`__setitem__(self, attr, value)` Set the value of the attribute `attr` to `value`.
`list` of `int`	`_tags(self)` Return a list of canvas tags for all graphical elements managed by this canvas widget, not including graphical elements managed by its child widgets.
`None`	`_update(self, child)` Update this canvas widget in response to a change in one of its children.
Inherited from `AbstractContainerWidget`: `__repr__`, `child`, `set_child`, `_manage` Inherited from `CanvasWidget`: `bbox`, `bind_click`, `bind_drag`, `canvas`, `child_widgets`, `destroy`, `height`, `hidden`, `hide`, `manage`, `move`, `moveto`, `parent`, `show`, `tags`, `unbind_click`, `unbind_drag`, `update`, `width`, `_add_child_widget`, `_remove_child_widget` Inherited from `object`: `__delattr__`, `__getattribute__`, `__hash__`, `__new__`, `__reduce__`, `__reduce_ex__`, `__setattr__`, `__str__`

Instance Variable Summary
Inherited from `CanvasWidget`: `__callbacks`, `__canvas`, `__children`, `__drag_x`, `__drag_y`, `__draggable`, `__parent`, `__press`, `__updating`

Class Variable Summary
`float`	`RATIO` = 1.4142135623730949

Method Details

init(self, canvas, child, **attribs)
(Constructor)

Create a new oval widget.

Parameters:: canvas - This canvas widget's canvas.
(type=Tkinter.Canvas); child - The child widget. child must not have a parent.
(type=CanvasWidget); attribs - The new canvas widget's attributes.

Overrides:: nltk_lite.draw.AbstractContainerWidget.__init__

getitem(self, attr)
(Indexing operator)

Returns:: the value of the attribute attr. See the class documentation for a list of attributes supported by this canvas widget.
(type=(any))

Overrides:: nltk_lite.draw.CanvasWidget.__getitem__ (inherited documentation)

setitem(self, attr, value)
(Index assignment operator)

Set the value of the attribute attr to value. See the class documentation for a list of attributes supported by this canvas widget.

Returns:: None

Overrides:: nltk_lite.draw.CanvasWidget.__setitem__ (inherited documentation)

_tags(self)

Returns:: a list of canvas tags for all graphical elements managed by this canvas widget, not including graphical elements managed by its child widgets.
(type=list of int)

Overrides:: nltk_lite.draw.CanvasWidget._tags (inherited documentation)

_update(self, child)

Update this canvas widget in response to a change in one of its children.

Parameters:: child - The child that changed.
(type=CanvasWidget)

Returns:: None

Overrides:: nltk_lite.draw.CanvasWidget._update (inherited documentation)

Class Variable Details

RATIO

Type:: float
Value:: 1.4142135623730949

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