A pane is a both a container and a containee area. It serves only as a geometry management device. A pane% cannot be hidden or disabled like a panel% object.

A pane% object has a degenerate placement strategy for managing its children: it places each child as if it was the only child of the panel. The horizontal-pane% and vertical-pane% classes provide useful geometry management for multiple children.

See also grow-box-spacer-pane% .

Changed in version 1.3 of package gui-lib: Changed the placement strategy to stretch and align children, instead of placing all children at the top-left corner.

constructor
( new pane%
[parentparent]
[ [vert-marginvert-margin]
[horiz-marginhoriz-margin]
[borderborder]
[spacingspacing]
[alignmentalignment]
[min-widthmin-width]
[min-heightmin-height]
[stretchable-widthstretchable-width]
[stretchable-heightstretchable-height]])
→(is-a?/c pane% )

parent :
(or/c (is-a?/c frame% )(is-a?/c dialog% )
(is-a?/c panel% )(is-a?/c pane% ))
vert-margin:spacing-integer? =0
horiz-margin:spacing-integer? =0
border:spacing-integer? =0
spacing:spacing-integer? =0

alignment :
(list/c (or/c 'left'center'right)
(or/c 'top'center'bottom))
= '(centertop)
min-width:(or/c dimension-integer? #f)=#f
min-height:(or/c dimension-integer? #f)=#f
stretchable-width:any/c =#t
stretchable-height:any/c =#t

For information about the horiz-margin and vert-margin arguments, see subarea<%> . For information about the border, spacing, and alignment arguments, see area-container<%> . For information about the min-width, min-height, stretchable-width, and stretchable-height arguments, see area<%> .

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