Interface: DvtDiagramLayoutContextNode

Oracle® JavaScript Extension Toolkit (JET)
17.1.0
G12196-01

Since:
  • 3.0
Module:
  • ojdiagram

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Methods

Description

The DvtDiagramLayoutContextNode interface defines the node context for a layout call.


Usage

Signature:

interface DvtDiagramLayoutContextNode<K1, D1 extends ojDiagram.Node<K1>|any>

Generic Parameters
ParameterDescription
K1Type of key of the nodeData dataprovider
D1Type of data from the nodeData dataprovider
Typescript Import Format
//To use this interface, import as below.
import {DvtDiagramLayoutContextNode} from "ojs/ojdiagram";

For additional information visit:


The DvtDiagramLayoutContextNode interface defines the node context for a layout call.

Methods

getBounds : {{x: number, y: number, w: number, h: number}}

Get the bounds of the node. Currently the method returns the same value as getContentBounds(). The bounds are in the coordinate system of the node.
Properties:
Name Type Description
h number height
w number width
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the bounds of the node

Type
{x: number, y: number, w: number, h: number}

getChildNodes : {DvtDiagramLayoutContextNode<K1, D1>[]}

Get visible child nodes for the disclosed container.
Returns:

array of DvtDiagramLayoutContextNode objects

Type
DvtDiagramLayoutContextNode<K1, D1>[]

getContainerId : {K1}

Get the id of this node's container, or null if this is a top-level node.
Returns:
Type
K1

getContentBounds : {{x: number, y: number, w: number, h: number}}

Get the bounds of the node content. Currently the method returns the same value as getBounds(). The bounds are in the coordinate system of the node.
Properties:
Name Type Description
h number height
w number width
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the bounds of the node content

Type
{x: number, y: number, w: number, h: number}

getData : {D1}

Get the corresponding data object for the diagram node.
Returns:

a data object for the node

Type
D1

getId : {K1}

Get the id of the node.
Returns:
Type
K1

getLabelBounds : {{x: number, y: number, w: number, h: number}}

Get the label bounds. The bounds are in the coordinate system of the label.
Properties:
Name Type Description
h number height
w number width
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the label bounds

Type
{x: number, y: number, w: number, h: number}

getLabelHalign : {('left'|'center'|'right')}

Get the horizontal alignment of the node label. The default value is left for locales with left-to-right reading direction and right for locales with right-to-left reading direction.
Supported Values:
Value
center
left
right
Returns:

A string that specifies the horizontal label alignment

Type
('left'|'center'|'right')

getLabelPosition : {{x: number, y: number}}

Get the position of the node label. The position is in the coordinate system of the node's container. The position represents the upper-left corner for locales with left-to-right reading direction and the upper-right corner for locales with right-to-left reading direction.
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the position of the node label

Type
{x: number, y: number}

getLabelRotationAngle : {number}

Get the angle of rotation of the node label, relative to the label rotation point, in radians.
Returns:
Type
number

getLabelRotationPoint : {{x: number, y: number}}

Get the point about which to rotate the node label, in the coordinate system of the label.
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the label rotation point

Type
{x: number, y: number}

getLabelValign : {('top'|'middle'|'bottom'|'baseline')}

Get the vertical alignment of the node label.
Supported Values:
Value
baseline
bottom
middle
top
Default Value:
  • "top"
Returns:

A string that specifies the vertical label alignment

Type
('top'|'middle'|'bottom'|'baseline')

getLayoutAttributes : {Object}

Get the corresponding object from the nodes option array.
Deprecated:
Since Description
2.1.0 This method is deprecated. Please use the getData method instead
Returns:
Type
Object

getPosition : {{x: number, y: number}}

Get the position of the node. The position is in the coordinate system of the node's container.
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the position of the node

Type
{x: number, y: number}

getRelativePosition(containerId) : {{x: number, y: number}}

The method returns a position of the node relative to the specified ancestor container. If the container id is null, the method returns global position of the node. If the container id is not an ancestor id for the node, the method returns null.
Parameters:
Name Type Description
containerId K1 ancestor id
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:

An object with the following properties for the position of the node relative to the specified ancestor container

Type
{x: number, y: number}

getSelected : {boolean}

Determine whether this node is selected.
Returns:
Type
boolean

isDisclosed : {boolean}

Determine whether this container is disclosed.
Returns:

true if the node is a disclosed container

Type
boolean

setLabelHalign(halign) : {void}

Set the horizontal alignment of the node label. The default value is left for locales with left-to-right reading direction and right for locales with right-to-left reading direction.
Parameters:
Name Type Description
halign 'left' | 'center' | 'right' A string that specifies the horizontal label alignment
Supported Values:
Value
center
left
right
Returns:
Type
void

setLabelPosition(pos) : {void}

Set the position of the node label. The position is in the coordinate system of the node's container. The position represents the upper-left corner for locales with left-to-right reading direction and the upper-right corner for locales with right-to-left reading direction.
Parameters:
Name Type Description
pos {x: number, y: number} An object with the following properties for position of the node label
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:
Type
void

setLabelRotationAngle(angle) : {void}

Set the angle of rotation of the node label, relative to the label rotation point, in radians.
Parameters:
Name Type Description
angle number angle of rotation
Returns:
Type
void

setLabelRotationPoint(point) : {void}

Set the point about which to rotate the node label, in the coordinate system of the label.
Parameters:
Name Type Description
point {x: number, y: number} An object with the following properties for label rotation point
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:
Type
void

setLabelValign(valign) : {void}

Set the vertical alignment of the node label.
Parameters:
Name Type Description
valign 'top' | 'middle' | 'bottom' | 'baseline' A string that specifies the vertical label alignment. The "baseline" value is not supported when applied to multiline labels. If "baseline" is applied to a multiline label, the text element will default to "top" alignment.
Supported Values:
Value
baseline
bottom
middle
top
Default Value:
  • "top"
Returns:
Type
void

setPosition(pos) : {void}

Set the position of the node. The position is in the coordinate system of the node's container.
Parameters:
Name Type Description
pos {x: number, y: number} An object with the following properties for the position of the node
Properties:
Name Type Description
x number x-coordinate
y number y-coordinate
Returns:
Type
void