slide-by-line ( amount slider -- )
Factor handbook » UI framework » Building user interfaces » Pre-made UI gadgets » Slider gadgets

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Vocabulary
ui.gadgets.sliders

Inputs

amount	an integer
slider	a slider

Outputs
None

Word description
Adds the amount multiplied by the line slot to the slider's current position.

Definition

USING: accessors kernel math ;

IN: ui.gadgets.sliders

: slide-by-line ( amount slider -- )
    [ line>> * ] keep slide-by ;