I

IBoundsProvider

Interface that is implemented for elements that can provide rendering bounds in the world coordinate system.

Inheritance Hierarchy

Members

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Methods

getBounds

(context: ICanvasContext): Rect

abstract

Returns a tight rectangular area where the whole rendering would fit into.

If calculating the bounds is too expensive or the rendering is not bound to a certain area, this method may return INFINITE. If nothing is rendered, this method should return an empty rectangle, where either or both the width and height is non-positive or EMPTY.

abstract

Parameters

context: ICanvasContext: the context to calculate the bounds for

Return Value

Rect: the bounds or EMPTY to indicate an unbound area

Constants

EMPTY

: IBoundsProvider

static

An implementation that returns an IBoundsProvider that yields EMPTY bounds.

UNBOUNDED

: IBoundsProvider

static

An implementation that returns an IBoundsProvider that yields INFINITE bounds.

Static Methods

create

(getBounds: function(ICanvasContext): Rect): IBoundsProvider

static

static

Parameters

getBounds: function(ICanvasContext): Rect

Return Value

IBoundsProvider

fromRectangle

(bounds: IRectangle): IBoundsProvider

static

Creates an instance that returns the given rectangle as the bounds.

static

Parameters

bounds: IRectangle: The rectangle to be used as the bounds.

Return Value

IBoundsProvider: An IBoundsProvider that returns the given bounds.