Documentation Set for Swarm 2.2
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# Canvas

## Name

Canvas -- An interface to Tk canvas semantics.

## Description

The Canvas widget allows display of a diverse range of graphical objects.

## Protocols adopted by Canvas

ArchivedGeometryWidget CREATABLE

## Methods

### Phase: Using

- - checkGeometry: frame
  Make sure the that the geometry is `reasonable'.

- - removeWidget: widget
  Remove a widget from the canvas.

- - addWidget: widget X: (int)x Y: (int)y centerFlag: (BOOL)centerFlag
  Position a widget inside the canvas

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