render-region ( line offset dim -- image )

Vocabulary

core-text

Inputs

line	an object
offset	an object
dim	an object

Outputs

image

an object

Definition

USING: accessors arrays combinators core-graphics kernel math
math.vectors sequences ;

IN: core-text

:: render-region ( line offset dim -- image )
    line prepare-render
    line render-loc>> offset first line render-ext>> second
    offset second - dim second - 2array v+ :> loc dim [
        {
            [ line offset dim loc fill-line-backgrounds ]
            [ loc first2 [ neg ] bi@ CGContextTranslateCTM ]
            [ line loc dim draw-line-region ]
        } cleave
    ] make-bitmap-image ;