Chapter 9. The Canvas Widget
The canvas widget is mainly used for drawing items such
as arcs, lines, rectangles, circles, and so on. You can also place
text and other widgets inside a canvas widget. Think of it as a
painter's canvas: It is blank until you decide to draw something
on it. But unlike a painter's canvas, which is limited in size,
this canvas is scrollable in any direction. Here are some examples of
how you can use a canvas widget:
Create a drawing program.
Display a graph based on input from the user.
Create a customized slider.
Each item you create in a canvas widget can have bindings attached to it to allow for easy interaction with the user.
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