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API / geotoolkit / welllog / header / LogVisualHeader / LogVisualHeader

Class: LogVisualHeader<T>

header.LogVisualHeader.LogVisualHeader

Define an abstract implementation of visual header. NOTE: Custom LogVisualHeader implementation MUST override "clone" operation for LogVisualHeaderProvider to be able to create new header instance(s) internally. This is a base class for all visual headers.

Example

// This example shows how to create a custom header for a curve, it displays just a curve name.
import {setClassName} from '@int/geotoolkit/base';
import {LogVisualHeader} from '@int/geotoolkit/welllog/header/LogVisualHeader';
import {Transformation} from '@int/geotoolkit/util/Transformation';
import {obfuscate} from '@int/geotoolkit/lib';
import {TextStyle} from '@int/geotoolkit/attributes/TextStyle';
import {Rect} from '@int/geotoolkit/util/Rect';
import {LogCurve} from '@int/geotoolkit/welllog/LogCurve';

class CustomCurveVisualHeader extends LogVisualHeader {
constructor (options) {
super(options);
}
render (inputContext) {
const context = this.getWorldTransform() != null ? inputContext.pushTransformation(this.getWorldTransform()) : inputContext;
const rc = this.getModelLimits();
if (rc != null) {
const curve = this.getVisual();
const curveName = curve.getName();
context.setTextStyle(this.getTextStyle().clone().setAlignment('center').setBaseLine('top'));
const oldTr = context.getTransformation();
// transform anchor coordinates to device
const pos = oldTr.transformXY(rc.getCenterX(), rc.getTop());
// Sets identity transformation
context.setTransformation(new Transformation());
context.drawText(pos.getX(), pos.getY(), curveName);
// restore transformation
context.setTransformation(oldTr);
}
}
clone () {
return new CustomCurveVisualHeader(this.getVisual())
.copyConstructor(this, true);
}
}
setClassName(CustomCurveVisualHeader, 'CustomCurveVisualHeader');
// Allows using obfuscated toolkit
obfuscate(CustomCurveVisualHeader, LogVisualHeader);
// In the next step you can register it for all curves or for an instance of the curve in the header provider. For example for all LogCurves you can use the following code:
const headerProvider = widget.getHeaderContainer().getHeaderProvider();
headerProvider.registerHeaderProvider(LogCurve.getClassName(), new CustomCurveVisualHeader(null));

Type parameters

NameType
Textends Node = Node

Hierarchy

Implements

Table of contents

Constructors
Methods
addCssClassaddInvalidateHandlerapplyOpacity
applyResponsiveStylecalculateDesiredHeightcheckCollision
checkTextSizecloneconnectStyle
copyConstructordisconnectStyledispose
drawBorderdrawRoundedBoxdrawText
enableEventPropagationexecutefillBorder
filtergetAnimationStylegetBorderLineStyle
getBoundsgetClassNamegetClipStyle
getContentsAreagetContentsTransformgetCss
getCssClassgetCssClassesgetCssTransform
getDesiredHeightgetDisplayDepthgetDisplayMode
getDisplayStringgetDisplayValuegetFillStyle
getHighlightOptionsgetIdgetInvalidateMethod
getIsPointingUpgetLayoutStylegetLineStyle
getLocalTransformgetMarginsStylegetModelLimits
getNamegetOpacitygetOpacityBlendMode
getPaddingStylegetParentgetProperties
getPropertygetPropertyKeysgetRenderingFilter
getResponsiveStylegetRootgetScaleScrollStrategy
getSceneTransformgetTaggetTextBoundingBox
getTextShapeHelpergetTextStylegetVisible
getVisualgetWorldTransformgetZIndex
hasCssClasshasEventListenerinvalidate
invalidateLayoutinvalidateParentisAutoBounds
isDisposedisEventPropagationEnabledisHorizontalFlip
isNotificationEnabledisSelectableisSilent
notifyoffon
onParentChangedonVisibilityChangedonVisualChanged
onVisualChangingonVisualStateChangedpostRendering
preRenderingregisterAnimationStyleremoveCssClass
removeInvalidateHandlerrenderrenderAsync
rotatescalesetAnimationStyle
setAutoBoundssetBorderLineStylesetBounds
setClipStylesetCsssetCssClass
setCssTransformsetDesiredHeightsetDisplayMode
setDisplayStringsetFillStylesetHighlightOptions
setHorizontalFlipsetIdsetIsPointingUp
setLayoutStylesetLineStylesetLocalTransform
setMarginsStylesetModelLimitssetName
setNotificationsetOpacitysetPaddingStyle
setPropertiessetPropertysetRenderingFilter
setResponsiveStylesetScaleScrollStrategysetSelectable
setSilentsetTagsetTextStyle
setVisiblesetVisualsetZIndex
sheartoStringtranslate
unregisterAnimationStyleupdateGeometryupdateSceneTransformation
updateStateupdateTimeStampenableSceneGraphNotification
findParentgetClassNamegetDesiredHeight
isSceneGraphNotificationEnabled
Css Properties
Name Type Description
autoboundsbooleanAutomatic calculation of header size on or off
borderlinestylestringBorder line style
borderlinestyleLineStyleBorder line style
borderlinestyle-colorstringColor in CSS form
borderlinestyle-fillstringOptional fill style to be used to fill lines generated with this style
borderlinestyle-fillFillStyleOptional fill style to be used to fill lines generated with this style
borderlinestyle-fill-colorstringColor in CSS form
borderlinestyle-fill-evenoddmodebooleanEven-odd fill mode
borderlinestyle-fill-fillpatternPatternPattern
borderlinestyle-fill-fillpattern-containernamestringAn optional container name, which creates an image pattern. This parameter is used for serialization if you want to save are reference to pattern instead of the pattern itself
borderlinestyle-fill-fillpattern-patternnamestringName of this pattern for indexing
borderlinestyle-fill-fillpattern-scalablebooleanFlag that sets scalability of the pattern coordinates, or relative to the shape it is filling (It is not supported)
borderlinestyle-fill-foregroundstringForeground color
borderlinestyle-fill-patternPatternPattern
borderlinestyle-linecapCapStyleThe line cap style
borderlinestyle-linedashoffsetnumberLine dash offset of dashed line
borderlinestyle-linejoinJoinStyleThe line join style
borderlinestyle-pixelsnapmodebooleanPixel Snap Mode, default(
borderlinestyle-scalablebooleanTrue if width should depend on transformation
borderlinestyle-unitstringOptional unit for the width
borderlinestyle-widthnumber | stringThe line thickness
boundsRectBounds of the curve in the parent coordinates
bounds-heightnumberHeight
bounds-readonlybooleanReadonly
bounds-widthnumberWidth
bounds-xnumberLeft
bounds-ynumberTop
clipstyleClipStyleClipping style
clipstyle-evenoddbooleanTrue if evenodd mode is on (&#x27;nonzero&#x27; mode otherwise)
clipstyle-geometryGraphicsPathClipping geometry
clipstyle-geometry-boundsRectBounds
clipstyleGraphicsPathClipping style
cssclassstringThe css class name of this node
csscursorstringCSS cursor associated with node
cssstylestringCSS style to be applied to inserted elements
depthnumberDepth
displaymodestringDisplay mode
displaystringstringDisplay string
fillstylestringThe fill style
fillstyleFillStyleThe fill style
horizontalflipbooleanFlip horizontal from right to left
idstring | numberId of the node, its a unique identifier
ispointingupbooleanDefines whether the text is always pointing up
layoutstyleLayoutStyleLayoutstyle
layoutstyle-constraintSizeConstraintLayout constrains
layoutstyle-flexgrownumberNumber specifying how much the item will grow relative to the rest of the items inside the same container
layoutstyle-flexshrinknumberNumber specifying how much the item will shrink relative to the rest of the items inside the same container
layoutstyle-floatstringFloat position
layoutstyle-positionstringLayout position
layoutstyle-sizenumber | stringLayout size
linestylestringThe line style
linestyleLineStyleThe line style
localtransformTransformationLocal transformation
localtransform-dxnumberX axis translation
localtransform-dynumberY axis translation
localtransform-xxnumberX scale
localtransform-xynumberXy skew
localtransform-yxnumberYx skew
localtransform-yynumberY scale
marginsnumber | stringIt has properties for specifying the margins for each side
modellimitsRectDesired model Limits
namestringName of the node. It is often used for debugging purposes or to simplify queries
opacitynumberNode opacity (from 0 to 1). If it is undefined or null it inherits property from the parent. It changes globalAlpha on the rendering context
opacityblendmodeBlendModeNode opacity mode to blend it
paddingnumber | stringIt has properties for specifying the padding for each side
scalescrollstrategyScaleScrollStrategyScale scroll strategy
scalescrollstrategy-enabledbooleanEnable flag
selectablebooleanSelectable node, a boolean to determine if selection should consider this node
taganyCustom information associated with node. It is a user object which can be used by client code to store information or attach an application object to the shape
textstylestringThe text style
textstyleTextStyleThe text style
textstyle-alignmentAlignmentStyleAlignment
textstyle-autosizebooleanAuto font size on high definition display
textstyle-backgroundstringBackground style
textstyle-backgroundFillStyleBackground style
textstyle-baselineBaseLineStyleBase line
textstyle-colorstringColor in CSS form
textstyle-fillFillStyleText fill style
textstyle-fontstringFont see
textstyle-fonturlstringThe place from which the font will be loaded, if null - uses system fonts. It can be base64 with url keyword
textstyle-lineheightstring | numberLine height
textstyle-multilinebooleanAllow multi-line text
textstyle-outlinestringOutline style
textstyle-outlineLineStyleOutline style
textstyle-overflowwrapOverflowWrapStyleOverflow wrap
textstyle-strikethroughstringStrikethrough style
textstyle-strikethroughLineStyleStrikethrough style
textstyle-textoverflowTextOverflowStyleText overflow
textstyle-underlinestringUnderline style
textstyle-underlineLineStyleUnderline style
textstyle-underlineoffsetstring | numberUnderline offset distance
textstyle-whitespaceWhiteSpaceStyleWhite space
textstyle-wordbreakWordBreakStyleWord break
transformstringAdditional CSS transformation applied to node or &#x27;none&#x27;
transformTransformationAdditional CSS transformation applied to node or &#x27;none&#x27;
visiblebooleanVisibility of the node, a boolean to determine if the node should be rendered or not
z-indexnumberDefine node z-index

Contents

Constructors

new LogVisualHeader&lt;T&amp;gt;(options)

Protected new LogVisualHeader<T>(options?)

Type parameters

NameType
Textends Node<T> = Node

Parameters

Name Type
Optional optionsT | Options<T>

Overrides

AbstractNode.constructor

Methods

addCssClass

addCssClass(cssclass): LogVisualHeader<T>

Adds new css class to node

Parameters

Name Type Description
cssclassstring | string[]css class name('s)

Returns

LogVisualHeader<T>

Overrides

AbstractNode.addCssClass


addInvalidateHandler

addInvalidateHandler(handler): LogVisualHeader<T>

Add invalidate handler

Deprecated

since 4.0, use Node.on instead

Parameters

Name Type Description
handlerFunctionhandler to be notified about invalidation

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.addInvalidateHandler


applyOpacity

Protected applyOpacity(context): LogVisualHeader<T>

This method is called to apply opacity if it is specified on the rendering context. The default implementation sets global alpha on the rendering context

Parameters

Name Type Description
contextRenderingContextRendering Context

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.applyOpacity


applyResponsiveStyle

Protected applyResponsiveStyle(): void

Apply a responsive style rules it is exists

Returns

void

Inherited from

AbstractNode.applyResponsiveStyle


calculateDesiredHeight

Protected calculateDesiredHeight(width?): number

Return header desired height

Parameters

Name Type Description
Optional widthnumberwidth to fit elements in case wrapping

Returns

number


checkCollision

checkCollision(context): boolean

Check culling Returns true if object is inside of renderable area

Parameters

Name Type Description
contextRenderingContextRendering Context

Returns

boolean

Overrides

AbstractNode.checkCollision


checkTextSize

checkTextSize(context, text, maxLen): string

Returns biggest text in specified width

Parameters

Name Type Description
contextRenderingContextRendering Context
textstringText to calculate the size for
maxLennumbermax length available for the text

Returns

string


clone

clone(): Node

All subclasses should override copyConstructor or provide custom implementation for this method

Returns

Node

clone

Inherited from

AbstractNode.clone


connectStyle

connectStyle(style, type, callback): LogVisualHeader<T>

Connects style.

This convenience method subscribes a listener to given style for the specified type.
And automatically un-subscribes listener if node is disposed to prevent memory leaks

Parameters

Name Type Description
styleEventDispatcherconnect style
typestringtype of event or property
callbackAttributeCallback<EventDispatcher>function to be called

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.connectStyle


copyConstructor

Protected copyConstructor(src, deepCopy?): LogVisualHeader<T>

Copy constructor function.
Function used as part of the cloning mechanism.
Implementations should copy the given instance state to this instance.

Parameters

Name Type Description
srcLogVisualHeader<T>Source to copy from
Optional deepCopybooleandeep copy

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.copyConstructor


disconnectStyle

disconnectStyle(style, type, callback): LogVisualHeader<T>

Disconnect style
This convenience method un-subscribes a listener to given style for the specified type.

Parameters

Name Type Description
styleEventDispatcherconnect style
typestringtype of event or property
callbackAttributeCallback<EventDispatcher>function to be called

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.disconnectStyle


dispose

dispose(): void

Dispose node. Clear all listeners and disconnect style to avoid memory leaks

Returns

void

Overrides

AbstractNode.dispose


drawBorder

drawBorder(context, borderLineStyle?, modelLimits?): LogVisualHeader<T>

Stroke border with specified

Parameters

Name Type Description
contextRenderingContextRendering Context
Optional borderLineStyleLineStylethe LineStyle for the border
Optional modelLimitsRectthe border bounds

Returns

LogVisualHeader<T>


drawRoundedBox

Protected drawRoundedBox(context, bounds, options?): LogVisualHeader<T>

Parameters

Name Type
contextRenderingContext
boundsRect
Optional optionsObject
Optional options.fillstyleFillStyle
Optional options.linestyleLineStyle
Optional options.radiusnumber

Returns

LogVisualHeader<T>


drawText

Protected drawText(context, x?, y?, text?, style?, alignment?, theta?, maxSize?): void

for internal use only, make text always readable

Parameters

Name Type Description
contextRenderingContextrendering context
Optional xnumberx position to place text
Optional ynumbery position to place text
Optional textstringtext to be displayed
Optional styleTextStyletext style
Optional alignmentAnchorTypealignment for placement of text
Optional thetanumberof rotation
Optional maxSizenumber | Dimensionmax size or width

Returns

void


enableEventPropagation

enableEventPropagation(enable): LogVisualHeader<T>

Enable event propagation from the node hierarchy from bottom to top

This option is similar to DOM Event bubbling, which allows to get any event from child node. By default it is disabled for better performance.

Example

import {Group} from '@int/geotoolkit/scene/Group';
import {Events as SceneEvents} from '@int/geotoolkit/scene/Node';
const parentGroup = new Group()
.setName('ParentGroup')
.enableEventPropagation(true);
const childGroup = new Group()
.setName('ChildGroup');

parentGroup.addChild(childGroup);
parentGroup.on(SceneEvents.Invalidate, (eventName, sender, args) => {
// Got notifications from all children of parent group
});
childGroup.invalidate();

Parameters

Name Type Description
enablebooleanenable

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.enableEventPropagation


execute

execute(delegate): LogVisualHeader<T>

Executes delegate and return the result. It allows us to keep all initialization calls in one place,
and we do not need to scroll up or down in IDE to find how and where it was initialized.

Example

// All setters (.setName() for example) returns reference to the this.
// In order to modify inner object like LineStyle or Pattern, to get this object (property) we should call getter to get object reference.
// Then modify it as shown below in Option 1 or you can use execute methods shown in Option 2.
import {Group} from '@int/geotoolkit/scene/Group';
import {Rect} from '@int/geotoolkit/util/Rect';
// Option 1
const group = new Group()
.setName('MyGroup')
.setBounds(new Rect(0, 0, 42, 16))
.enableClipping(true)
.setTag({'type': 'sometype'});

group.getLineStyle().setPattern('pattern');
return group;

// Options 2 ( using execute method )
return group
.execute(function () {
this.getLineStyle()
.setPattern("pattern");
});

Parameters

Name Type Description
delegate(this: LogVisualHeader<T>) => voidFunction to execute

Returns

LogVisualHeader<T>

The result if any or this

Inherited from

AbstractNode.execute

execute<T>(delegate): T

Type parameters

Name
T

Parameters

Name Type
delegate(this: LogVisualHeader<T>) => T

Returns

T

Inherited from

AbstractNode.execute


fillBorder

fillBorder(context, fillStyle?, modelLimits?): LogVisualHeader<T>

Draws a rectangle at the model limits and fill it with specified fillStyle

Parameters

Name Type Description
contextRenderingContextRendering Context
Optional fillStyleFillStyleFill Style for the rectangle
Optional modelLimitsRectrectangle bounds

Returns

LogVisualHeader<T>


filter

Protected filter(context): boolean

Filter node

Parameters

Name Type Description
contextRenderingContextRendering Context

Returns

boolean

flag filter flag ("true" to render node; "false" otherwise)

Inherited from

AbstractNode.filter


getAnimationStyle

getAnimationStyle(): AnimationStyle

Return animation style

Returns

AnimationStyle

animationStyle current animation style

Inherited from

AbstractNode.getAnimationStyle


getBorderLineStyle

getBorderLineStyle(): LineStyle

Gets border line style

Returns

LineStyle


getBounds

getBounds(): Rect

Return bound in the parent coordinates

Returns

Rect

Implementation of

ILayoutable.getBounds


getClassName

getClassName(): string

Returns

string

Inherited from

AbstractNode.getClassName


getClipStyle

getClipStyle(): ClipStyle

Gets the current clipping style

Returns

ClipStyle

clipping style

Inherited from

AbstractNode.getClipStyle


getContentsArea

getContentsArea(transformation?): Rect

Return area without paddings. Model limits are mapped to content area, where children are layout.

Parameters

Name Type Description
Optional transformationTransformationscene transformation

Returns

Rect


getContentsTransform

getContentsTransform(): Transformation

Return transformation from model to bounds

Returns

Transformation


getCss

getCss(): CssStyle

Return CSS style

Returns

CssStyle

Inherited from

AbstractNode.getCss


getCssClass

getCssClass(): string

Returns css class name to be used to apply CSS style

Returns

string

the css class name

Inherited from

AbstractNode.getCssClass


getCssClasses

getCssClasses(): string[]

Gets list of css class names which applied to this node

Returns

string[]

Inherited from

AbstractNode.getCssClasses


getCssTransform

getCssTransform(): string

Returns CSS transformation

Returns

string

Inherited from

AbstractNode.getCssTransform


getDesiredHeight

getDesiredHeight(width?): number

Return header desired height

Parameters

Name Type Description
Optional widthnumberwidth to fit elements in case wrapping

Returns

number


getDisplayDepth

getDisplayDepth(): number

Returns the displayed depth value

Returns

number


getDisplayMode

getDisplayMode(): string | string[]

Returns the displayed mode value

Returns

string | string[]


getDisplayString

getDisplayString(): string

Returns the displayed value

Returns

string

displayString


getDisplayValue

getDisplayValue(): number

Returns 0

Returns

number


getFillStyle

getFillStyle(): FillStyle

Return fill style

Returns

FillStyle


getHighlightOptions

getHighlightOptions(): HighlightOptions

Returns highlight options

Returns

HighlightOptions

highlight options


getId

getId(): string | number

Returns the associated identifier of the node

Returns

string | number

The node's id

Inherited from

AbstractNode.getId


getInvalidateMethod

Protected getInvalidateMethod(): AttributeCallback<EventDispatcher>

Gets invalidate method

Returns

AttributeCallback<EventDispatcher>

method to invalidate this object

Inherited from

AbstractNode.getInvalidateMethod


getIsPointingUp

getIsPointingUp(): boolean

Returns true if the text is always pointing up

Returns

boolean

true if the text is always pointing up


getLayoutStyle

getLayoutStyle(): LayoutStyle<string | number>

Return desired layout style

Returns

LayoutStyle<string | number>

Implementation of

ILayoutable.getLayoutStyle


getLineStyle

getLineStyle(): LineStyle

Return line style

Returns

LineStyle


getLocalTransform

getLocalTransform(): Transformation

Retrieves the transformation of bounds to parent

Returns

Transformation

transform the local transform.

Inherited from

AbstractNode.getLocalTransform


getMarginsStyle

getMarginsStyle(): SpaceStyle<string | number>

Return margins style

Returns

SpaceStyle<string | number>

Inherited from

AbstractNode.getMarginsStyle


getModelLimits

getModelLimits(): Rect

Return model limits

Returns

Rect


getName

getName(): string

Returns the node name

Returns

string

The node name

Inherited from

AbstractNode.getName


getOpacity

getOpacity(): number

Returns current node opacity

Returns

number

opacity

Inherited from

AbstractNode.getOpacity


getOpacityBlendMode

getOpacityBlendMode(): BlendMode

Returns current node opacity

Returns

BlendMode

opacity blend mode

Inherited from

AbstractNode.getOpacityBlendMode


getPaddingStyle

getPaddingStyle(): SpaceStyle<string | number>

Return padding style

Returns

SpaceStyle<string | number>

padding


getParent

getParent(): Node

Return parent node

Returns

Node

parent node

Implementation of

ILayoutable.getParent

Inherited from

AbstractNode.getParent


getProperties

getProperties(): OptionsOut<Node>

Gets all the properties pertaining to this object

Returns

OptionsOut<Node>

An object containing the props to set

Overrides

AbstractNode.getProperties


getProperty

getProperty(name): any

Gets dynamic property by name. These properties can be used as a property bags

Parameters

Name Type Description
namestringproperty name

Returns

any

Inherited from

AbstractNode.getProperty


getPropertyKeys

getPropertyKeys(): string[]

Returns known properties keys

Returns

string[]

Inherited from

AbstractNode.getPropertyKeys


getRenderingFilter

getRenderingFilter(): IFilter

Return filter to be used for rendering and picking

Returns

IFilter

current filter

Inherited from

AbstractNode.getRenderingFilter


getResponsiveStyle

getResponsiveStyle(): ResponsiveStyle

Return responsive style

Returns

ResponsiveStyle

Inherited from

AbstractNode.getResponsiveStyle


getRoot

getRoot(): Node

Returns root node.
If node doesn't have parent then it returns itself.

Returns

Node

the root node

Inherited from

AbstractNode.getRoot


getScaleScrollStrategy

getScaleScrollStrategy(): Delegate

Gets scale scroll strategy

Returns

Delegate

scale scroll strategy

Inherited from

AbstractNode.getScaleScrollStrategy


getSceneTransform

getSceneTransform(): Transformation

Returns transformation from node to root scene

Returns

Transformation

a transformation from node to root scene

Inherited from

AbstractNode.getSceneTransform


getTag

getTag(): any

Returns the object associated with the node by user.

Returns

any

The node's user-object

Inherited from

AbstractNode.getTag


getTextBoundingBox

Protected getTextBoundingBox(context, x?, y?, text?, style?, alignment?, theta?): Rect

Returns bounding box of the text

Parameters

Name Type Description
contextRenderingContextrendering context
Optional xnumberx position to place text
Optional ynumbery position to place text
Optional textstringtext to be displayed
Optional styleTextStyletext style
Optional alignmentAnchorTypealignment for placement of text
Optional thetanumberof rotation

Returns

Rect


getTextShapeHelper

Protected getTextShapeHelper(x?, y?, text?, textStyle?, alignment?): Text

Return text shape helper instance

Parameters

Name Type Description
Optional xnumberx coordinate
Optional ynumbery coordinate
Optional textstringtext to display
Optional textStyleTypea new shape text style
Optional alignmentAnchorTypeanchor alignment

Returns

Text

text shape helper


getTextStyle

getTextStyle(): TextStyle

Return a current text style

Returns

TextStyle


getVisible

getVisible(): boolean

Return visibility of the header

Returns

boolean

true if header itself and associated LogVisual is visible

Overrides

AbstractNode.getVisible


getVisual

getVisual(): T

Gets visual to be used to render header

Returns

T

visual


getWorldTransform

getWorldTransform(): Transformation

getWorldTransform retrieves the local transformation of the node which represents multiplication of parent to bounds and contents transformations.

Returns

Transformation

Overrides

AbstractNode.getWorldTransform


getZIndex

getZIndex(): number

Returns node z-index (null if not set)

Returns

number

Inherited from

AbstractNode.getZIndex


hasCssClass

hasCssClass(cssClass): boolean

Check if node has specified css class

Parameters

Name Type Description
cssClassstringcss class name

Returns

boolean

Inherited from

AbstractNode.hasCssClass


hasEventListener

hasEventListener(type, callback?): boolean

Check if a list of event listeners for this type contains this listener

Parameters

Name Type Description
typestringtype of event or property
Optional callbackFunctionto be called, if null, check if any callback is registered

Returns

boolean

Inherited from

AbstractNode.hasEventListener


invalidate

invalidate(bounds?, force?): LogVisualHeader<T>

Invalidate area of the shape. This method invalidates parent by default. invalidated from parent to root node.

Parameters

Name Type Description
Optional boundsRectbounds of the invalid rectangle in the inner node coordinates
Optional forcebooleantrue if parent should be invalidated immediately if null is provided then cache (if any will be completely refreshed) otherwise only specified rect or node.bounds will be refreshed

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.invalidate


invalidateLayout

invalidateLayout(propagate?): LogVisualHeader<T>

Notify that layout is invalidated. Send event Events.LayoutInvalidated

Parameters

Name Type Description
Optional propagatebooleanpropagate invalidate layout to parent

Returns

LogVisualHeader<T>

this


invalidateParent

Protected invalidateParent(bounds?, force?): LogVisualHeader<T>

Invalidate parent and notify all listeners. NOTE: Don't keep arguments of the event, because instance can be changed

Fires

Events.Invalidate

Parameters

Name Type Description
Optional boundsRectbounds of the invalid rectangle in the inner node coordinates
Optional forcebooleanforce rendering

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.invalidateParent


isAutoBounds

isAutoBounds(): boolean

Enable automatic bounds. If auto bounds is enabled then it equals to parent model limits

Deprecated

since 4.1, use .getLayoutStyle instead

Returns

boolean


isDisposed

isDisposed(): boolean

Returns whether this object has been disposed

Returns

boolean

Inherited from

AbstractNode.isDisposed


isEventPropagationEnabled

isEventPropagationEnabled(): boolean

Return true if event propagation is enabled from child to parent

Returns

boolean

Inherited from

AbstractNode.isEventPropagationEnabled


isHorizontalFlip

isHorizontalFlip(): boolean

Return true if the representation is flipped horizontally

Returns

boolean

horizontal flip


isNotificationEnabled

isNotificationEnabled(): boolean

return state of notification

Returns

boolean

current notification state

Inherited from

AbstractNode.isNotificationEnabled


isSelectable

isSelectable(): boolean

Returns true if node can be picked/selected.

Returns

boolean

The selectable flag

Inherited from

AbstractNode.isSelectable


isSilent

isSilent(): boolean

Return true if the event dispatcher doesn't notify any events

Returns

boolean

Inherited from

AbstractNode.isSilent


notify

notify<E>(type, source, args?): LogVisualHeader<T>

Notify listeners of the Node

Type parameters

NameType
Eextends string

Parameters

Name Type Description
typeEtype of event
sourceLogVisualHeader<Node>source who called the event
Optional argsEventMap[E]event arguments

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.notify


off

off<E>(type?, callback?): LogVisualHeader<T>

Detach listener on event. Calling .off() with no arguments removes all attached listeners. Calling .off(type) with no callback removes all attached listeners for specific type.

Type parameters

NameType
Eextends string

Parameters

Name Type Description
Optional typeEtype of the event
Optional callback(eventType: E, sender: LogVisualHeader<T>, args: EventMap[E]) => voidfunction to be called

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.off


on

on<E>(type, callback): LogVisualHeader<T>

Attach listener on event that will be called whenever the specified event is delivered to the target

If the callback function is already in the list of event listeners for this target, the function is not added a second time.

If a particular anonymous function is in the list of event listeners registered for a certain target, and then later in the code, an identical anonymous function is given in an "on" call, the second function will also be added to the list of event listeners for that target.

Type parameters

NameType
Eextends string

Parameters

Name Type Description
typeEtype of event or property
callback(eventType: E, sender: LogVisualHeader<T>, args: EventMap[E]) => voidto be called

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.on


onParentChanged

Protected onParentChanged(node): LogVisualHeader<T>

This method is called when parent changes. Do not call it directly.

Parameters

Name Type Description
nodeNodenode to change parent

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.onParentChanged


onVisibilityChanged

Protected onVisibilityChanged(): void

This method is called if visibility is changed. Send event Events.VisibilityChanged

Returns

void

Inherited from

AbstractNode.onVisibilityChanged


onVisualChanged

Protected onVisualChanged(): void

This method is called if visual is changed. Send event Events.VisualChanged

Returns

void


onVisualChanging

Protected onVisualChanging(): void

This method is called if visual is changing.

Returns

void


onVisualStateChanged

Protected onVisualStateChanged(type, source): void

Parameters

Name Type
typeEvents | Events
sourceT

Returns

void


postRendering

Protected postRendering(context): void

To be called after rendering. Call this method if you override method render

Parameters

Name Type Description
contextRenderingContextRendering Context

Returns

void

Inherited from

AbstractNode.postRendering


preRendering

Protected preRendering(context): void

Occurs before rendering this method sets clipping by default. Call this method if you override method render

Parameters

Name Type Description
contextRenderingContextRendering Context

Returns

void

Inherited from

AbstractNode.preRendering


registerAnimationStyle

registerAnimationStyle(root): void

Register animation style.

Parameters

Name Type Description
rootNoderoot node for node

Returns

void

Inherited from

AbstractNode.registerAnimationStyle


removeCssClass

removeCssClass(cssclass): LogVisualHeader<T>

Removes css class from node

Parameters

Name Type Description
cssclassstring | string[]css class name('s)

Returns

LogVisualHeader<T>

Overrides

AbstractNode.removeCssClass


removeInvalidateHandler

removeInvalidateHandler(handler): LogVisualHeader<T>

Remove invalidate handler

Deprecated

since 4.0, use Node.off instead

Parameters

Name Type Description
handlerFunctionhandler to be notified about invalidation

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.removeInvalidateHandler


render

Abstract render(context): void

Renders node

Parameters

Name Type Description
contextRenderingContextThe rendering context to be used to draw the node

Returns

void

Inherited from

AbstractNode.render


renderAsync

renderAsync(context, callback): void

Render node in asynchronous mode. Default implementation creates call method "render" inside

Parameters

Name Type Description
contextRenderingContextThe rendering context to be used to draw the node
callback() => voidcallback function

Returns

void

Inherited from

AbstractNode.renderAsync


rotate

rotate(theta, x, y): LogVisualHeader<T>

Rotate bounds around a given coordinate

Parameters

Name Type Description
thetanumberangle to rotate node, in radians
xnumberx coordinate to rotate around
ynumbery coordinate to rotate around

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.rotate


scale

scale(xx, yy): LogVisualHeader<T>

Scale node

Parameters

Name Type Description
xxnumberx scale factor
yynumbery scale factor

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.scale


setAnimationStyle

setAnimationStyle(animationStyle): LogVisualHeader<T>

Sets animation style

Parameters

Name Type Description
animationStyleTypeanimation style

Returns

LogVisualHeader<T>

Inherited from

AbstractNode.setAnimationStyle


setAutoBounds

setAutoBounds(enable): LogVisualHeader<T>

Enable or disable auto bounds If auto bounds is enabled then it equals to parent model limits

Deprecated

since 4.1, use .setLayoutStyle instead

Parameters

Name Type Description
enablebooleanEnable or disable auto bounds

Returns

LogVisualHeader<T>


setBorderLineStyle

setBorderLineStyle(lineStyle, merge?): LogVisualHeader<T>

Sets border line style

Parameters

Name Type Description
lineStyleTypeline style or options
Optional mergebooleantrue if you want to merge lineStyle with existing attribute, false by default

Returns

LogVisualHeader<T>

this


setBounds

setBounds(bounds): LogVisualHeader<T>

Sets bounds of the curve in the parent coordinates and set up auto bounds false

Parameters

Name Type Description
boundsRectbounds of the curve in the parent coordinates

Returns

LogVisualHeader<T>

this

Implementation of

ILayoutable.setBounds


setClipStyle

setClipStyle(style): LogVisualHeader<T>

Sets a new clipping style

Parameters

Name Type Description
styleGraphicsPath | ClipStyle | Optionsa new clipping style

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setClipStyle


setCss

setCss(style, merge?): LogVisualHeader<T>

Sets CSS style. This style will be applied for all inserted elements

Parameters

Name Type Description
styleTypeCSS style to be applied to inserted elements
Optional mergebooleanmerge flag

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setCss


setCssClass

setCssClass(name): LogVisualHeader<T>

Sets css class name of the node to be used to apply CSS style

Parameters

Name Type Description
namestringcss class name of the node

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setCssClass


setCssTransform

setCssTransform(transform): LogVisualHeader<T>

Set CSS transformation

Parameters

Name Type Description
transformstring | Transformationtransformation css transformation instruction or Transformation instance

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setCssTransform


setDesiredHeight

setDesiredHeight(value, silent?): LogVisualHeader<T>

Sets desired height of the header as a layoutable object

Parameters

Name Type Description
valuestring | numberdesired height to set, use 'auto' for automatic desired height
Optional silentbooleansilent setting

Returns

LogVisualHeader<T>

this


setDisplayMode

setDisplayMode(displayMode): LogVisualHeader<T>

Sets the displayed mode value

Parameters

Name Type Description
displayModestring | string[]header display mode

Returns

LogVisualHeader<T>


setDisplayString

setDisplayString(displayString): LogVisualHeader<T>

Sets the displayed value

Parameters

Name Type Description
displayStringstringthe displayed value

Returns

LogVisualHeader<T>


setFillStyle

setFillStyle(fillStyle, merge?): LogVisualHeader<T>

Sets fill style

Parameters

Name Type Description
fillStyleTypea new fill style
Optional mergebooleantrue if you want to merge fillStyle with existing attribute, false by default

Returns

LogVisualHeader<T>


setHighlightOptions

setHighlightOptions(options): LogVisualHeader<T>

Set highlight options

Parameters

Name Type Description
optionsHighlightOptionshighlight options

Returns

LogVisualHeader<T>


setHorizontalFlip

setHorizontalFlip(enable): LogVisualHeader<T>

Set horizontal flip of the representation

Parameters

Name Type Description
enablebooleanenable flip flag, if it is null [default] header try to use same property from associated visual

Returns

LogVisualHeader<T>

this


setId

setId(id): LogVisualHeader<T>

Allows the user to associate any identifier

Parameters

Name Type Description
idstring | numberobject id

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setId


setIsPointingUp

setIsPointingUp(isPointingUp): LogVisualHeader<T>

Sets whether the text is always pointing up.

Parameters

Name Type Description
isPointingUpbooleanflag setting whether the text is always pointing up

Returns

LogVisualHeader<T>

this


setLayoutStyle

setLayoutStyle(layoutStyle, merge?): LogVisualHeader<T>

Specify desired layout style

Parameters

Name Type Description
layoutStyleLayoutStyle<string | number> | Options<string | number>desired layout style
Optional mergebooleantrue if you want to merge layoutStyle with existing attribute, false by default

Returns

LogVisualHeader<T>


setLineStyle

setLineStyle(lineStyle, merge?): LogVisualHeader<T>

Sets a line style

Parameters

Name Type Description
lineStyleTypeline style or options
Optional mergebooleantrue if you want to merge lineStyle with existing attribute, false by default

Returns

LogVisualHeader<T>

this


setLocalTransform

setLocalTransform(localTransform, force?): LogVisualHeader<T>

Sets local transformation to be used to transform from local to parent coordinate

Parameters

Name Type Description
localTransformTransformationlocal transformation for this node
Optional forcebooleanboolean flag to force update event if transformations are equal, false by default

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setLocalTransform


setMarginsStyle

setMarginsStyle(margins, merge?): LogVisualHeader<T>

Sets margins style

Parameters

Name Type Description
marginsType<string | number>margins style
Optional mergebooleantrue if you want to merge marginsStyle with existing attribute, false by default

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setMarginsStyle


setModelLimits

setModelLimits(modelLimits): LogVisualHeader<T>

Sets model limits

Parameters

Name Type Description
modelLimitsRectdesired model Limits

Returns

LogVisualHeader<T>


setName

setName(name): LogVisualHeader<T>

Sets name of the node

Parameters

Name Type Description
namestringThe node name

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setName


setNotification

setNotification(notify, force?): LogVisualHeader<T>

set notification state

Parameters

Name Type Description
notifybooleanflag set to invalidate parent or not
Optional forcebooleantrue if parent should be invalidated immediately

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setNotification


setOpacity

setOpacity(opacity, blendMode?): LogVisualHeader<T>

Sets node opacity

Parameters

Name Type Description
opacitynumbernode opacity from 0 to 1
Optional blendModeBlendModeopacity blend mode. If it is normal, opacity will be replaced.

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setOpacity


setPaddingStyle

setPaddingStyle(paddingStyle, merge?): LogVisualHeader<T>

Sets padding style

Parameters

Name Type Description
paddingStyleType<string | number>padding style
Optional mergebooleantrue if you want to merge paddingStyle with existing attribute, false by default

Returns

LogVisualHeader<T>


setProperties

setProperties(properties?): LogVisualHeader<T>

Sets all the properties pertaining to this object

Parameters

Name Type Description
Optional propertiesOptions<T>An object containing the properties to set

Returns

LogVisualHeader<T>

this

Overrides

AbstractNode.setProperties


setProperty

setProperty(name, value): LogVisualHeader<T>

Sets dynamic property by name

Parameters

Name Type Description
namestringproperty name
valueanyproperty value

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setProperty


setRenderingFilter

setRenderingFilter(filter): LogVisualHeader<T>

Sets filter to be applied before rendering and picking

Parameters

Name Type Description
filterIFilterfilter to set

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setRenderingFilter


setResponsiveStyle

setResponsiveStyle(style): LogVisualHeader<T>

Sets responsive style.

Parameters

Name Type Description
styleOptions | ResponsiveStyleresponsive style

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setResponsiveStyle


setScaleScrollStrategy

setScaleScrollStrategy(strategy?): LogVisualHeader<T>

Sets scale scroll strategy

Parameters

Name Type Description
Optional strategyDelegatescale scroll strategy

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setScaleScrollStrategy


setSelectable

setSelectable(selectable): LogVisualHeader<T>

Allows to select node. If node is not selectable then child node is not selectable.

Parameters

Name Type Description
selectablebooleanflag to allow node selection

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setSelectable


setSilent

setSilent(bool): LogVisualHeader<T>

Set silent mode

Parameters

Name Type Description
boolbooleanflag to enable silent mode

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setSilent


setTag

setTag(tag): LogVisualHeader<T>

Allows the user to associate any arbitrary object with the node.

Parameters

Name Type Description
taganyThe object to be associated with the node.

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setTag


setTextStyle

setTextStyle(textStyle, merge?): LogVisualHeader<T>

Sets a current text style

Parameters

Name Type Description
textStyleTypea new shape text style
Optional mergebooleantrue if you want to merge textStyle with existing attribute, false by default

Returns

LogVisualHeader<T>

this


setVisible

setVisible(value): LogVisualHeader<T>

Sets visibility of the node. Send event Events.VisibilityChanged

Parameters

Name Type Description
valuebooleanflag specifying visibility of the node

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setVisible


setVisual

setVisual(visual): LogVisualHeader<T>

Parameters

Name Type
visualT

Returns

LogVisualHeader<T>


setZIndex

setZIndex(value): LogVisualHeader<T>

Sets z-index for node (set null for default)

Parameters

Name Type Description
valuenumberindex determining node z-position

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.setZIndex


shear

shear(shx, shy): LogVisualHeader<T>

Shear this node's bounds

Parameters

Name Type Description
shxnumberx-axis shear
shynumbery-axis shear

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.shear


toString

toString(): string

Returns a string representation of this object (generally the classname)

Returns

string

A string representation

Inherited from

AbstractNode.toString


translate

translate(tx, ty): LogVisualHeader<T>

Translate bounds

Parameters

Name Type Description
txnumberx translation
tynumbery translation

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.translate


unregisterAnimationStyle

unregisterAnimationStyle(root): void

Unregister animation style.

Parameters

Name Type Description
rootNoderoot node for node

Returns

void

Inherited from

AbstractNode.unregisterAnimationStyle


updateGeometry

Protected updateGeometry(): LogVisualHeader<T>

Returns

LogVisualHeader<T>


updateSceneTransformation

updateSceneTransformation(): LogVisualHeader<T>

Update scene transformation

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.updateSceneTransformation


updateState

updateState(regions?, changes?): LogVisualHeader<T>

Update state. These methods reset node state and update state for children. this method is useful to refresh a scene graph

Parameters

Name Type Description
Optional regionsRect[]optional array to return invalid rectangles in the parent coordinates
Optional changesStateChangesoptional parameter to specify a reason of changes

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.updateState


updateTimeStamp

Protected updateTimeStamp(): LogVisualHeader<T>

Update time stamp to indicate that Node or Children has been changed.

Returns

LogVisualHeader<T>

this

Inherited from

AbstractNode.updateTimeStamp


enableSceneGraphNotification

Static enableSceneGraphNotification(enabled): void

Enable / disable all notifications

Parameters

Name Type Description
enabledbooleansets if this object sends notifications

Returns

void

Inherited from

AbstractNode.enableSceneGraphNotification


findParent

Static findParent<T>(node, classType, filter?): InstanceType<T>

Find root of the node with specified type

Type parameters

NameType
Textends Constructor<any>

Parameters

Name Type Description
nodeNodenode to start search
classTypeTtype of the class to search for
Optional filter(node: Node) => booleanadditional filter to apply

Returns

InstanceType<T>

Inherited from

AbstractNode.findParent

Static findParent(node, classType, filter?): Node

Find root of the node with specified type

Parameters

Name Type Description
nodeNodenode to start search
classTypestringinterface name to search for
Optional filter(node: Node) => booleanadditional filter to apply

Returns

Node

Inherited from

AbstractNode.findParent


getClassName

Static getClassName(): string

Returns

string

Inherited from

AbstractNode.getClassName


getDesiredHeight

Static getDesiredHeight(header, width?): number

Return header desired content height with padding

Parameters

Name Type Description
headerLogVisualHeader<Node>header instance
Optional widthnumberavailable width, for header, to calculate required height

Returns

number


isSceneGraphNotificationEnabled

Static isSceneGraphNotificationEnabled(): boolean

Return status of the global notification for all nodes.

Returns

boolean

Inherited from

AbstractNode.isSceneGraphNotificationEnabled