validate-line ( m gadget -- n )
Factor handbook » UI framework » Implementing new gadgets » Gadget line support

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Vocabulary
ui.gadgets.line-support

Inputs

m	an object
gadget	an object

Outputs

n

an object

Definition

USING: kernel math math.order sequences ui.gadgets ;

IN: ui.gadgets.line-support

: validate-line ( m gadget -- n )
    control-value [ drop f ] [ length 1 - min 0 max ] if-empty ;