Pudu programming language
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API reference

Std.Ui.Layout.damage

1 declaration

fn

damage: &Std.Ui.Layout.Layout -> &Std.Ui.Layout.Layout -> Array[Std.Ui.Canvas.Rect]

This is a callable function.

What it does

The regions whose pixels differ between two placements of a screen.

A node that changed what it paints damages where it was and where it is,

measured by its extent: its frame, grown to cover text overflowing it. A

change of structure or viewport damages everything, because node positions

no longer correspond. Repainting only these regions of the earlier surface

gives exactly the surface a full render of the later layout gives.

Read the signature

  • The text after the name is the type checked by Pudu.
  • Read arrows from left to right: inputs come first, and the final type is returned.
  • & borrows a value for this call instead of moving or copying it.
  • Names inside [ ] are type arguments, such as the item type held by a collection.

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