BoxEdge class

This class stores the sizes of the box edges in the CSS box model. Each edge area is placed around the sides of the content box. The innermost area is the Style.padding area which has a background and surrounds the content. The content and padding area is surrounded by the Style.border, which itself is surrounded by the transparent Style.margin. This box represents the eges of padding, border, or margin depending on which accessor was used to retrieve it.

Constructors

BoxEdge([num? left, num? top, num? right, num? bottom])
Creates a box edge with the specified left, top, right, and bottom width.
const
BoxEdge.clockwiseFromTop(num? top, num? right, num? bottom, num? left)
Creates a box edge with the specified top, right, bottom, and left width. This matches the typical CSS order: developer.mozilla.org/en/CSS/margin developer.mozilla.org/en/CSS/border-width developer.mozilla.org/en/CSS/padding.
const
BoxEdge.nonNull(BoxEdge? other)
Takes a possibly null box edge, with possibly null metrics, and fills them in with 0 instead.
factory
BoxEdge.uniform(num size)
This is a helper to creates a box edge with the same left, top right, and bottom widths.
const

Properties

bottom → num?
The size of the bottom edge, or null if the style has no edge.
final
hashCode → int
The hash code for this object.
no setterinherited
height → num
The total size of the vertical edges. Equal to top + bottom, where null is interpreted as 0px.
no setter
left → num?
The size of the left edge, or null if the style has no edge.
final
The size of the right edge, or null if the style has no edge.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
top → num?
The size of the top edge, or null if the style has no edge.
final
width → num
The total size of the horizontal edges. Equal to left + right, where null is interpreted as 0px.
no setter

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

merge(BoxEdge? x, BoxEdge? y) → BoxEdge?
Merge the two box edge sizes and return the result. See Style.merge for more information.