|
|
|
|
|
|
|
Drawing is done with displayRectangularBorder:at:,
with displayLineFrom:to:, with displayPolygon:, and with
displayString:at:.
Because there is no exact analog of centerText:at:, you must center
displayed strings manually, by first converting the string to composed
text, using asComposedText. The composed text then serves as the
receiver of a width message.