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PHP Manual
UI\Area
Draw Callback

UI\Area::onDraw

(PHP 7, UI 0.9.9)

UI\Area::onDraw — Draw Callback

说明

protected UI\Area::onDraw ( UI\Draw\Pen $pen , UI\Size $areaSize , UI\Point $clipPoint , UI\Size $clipSize )

Shall be invoked when this Area requires redrawing

参数

pen: A Pen suitable for drawing in this Area
areaSize: The size of the Area
clipPoint: The clip point of the Area
clipSize: The clip size of the Area