Class ColumnsLayoutCache.LayoutInfo

java.lang.Object

io.github.palexdev.virtualizedfx.table.ColumnsLayoutCache.LayoutInfo

All Implemented Interfaces:

Comparable<ColumnsLayoutCache<T>.LayoutInfo>

Enclosing class:

ColumnsLayoutCache<T>

public class ColumnsLayoutCache.LayoutInfo
extends Object
implements Comparable<ColumnsLayoutCache<T>.LayoutInfo>

Wrapper class for layout data related to a specific VFXTableColumn. This stores: its index [init:-1], its width as a DoubleBinding, its x position [default:-1.0], and its visibility [default:null].

Width handling

For better performance, the column's width is stored as a binding, so the value is computed lazily (only upon request). Invalidation is handled "manually". Check createWidthBinding() for more details.

Null visibility? What?

This uses null as a possible visibility value, to indicate that it is invalid and thus must be computed.

Constructor Summary

Constructors

Constructor	Description
LayoutInfo(VFXTableColumn<T,?> column)

Method Summary

Modifier and Type	Method	Description
int	compareTo(ColumnsLayoutCache<T>.LayoutInfo o)
boolean	equals(Object o)
VFXTableColumn<T,?>	getColumn()
int	getIndex()
double	getPos()
double	getWidth()	Calls DoubleBinding.get() on the column's width binding.
int	hashCode()
Boolean	isVisible()
boolean	isWidthValid()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LayoutInfo

public LayoutInfo(VFXTableColumn<T,?> column)

Method Details

getColumn

public VFXTableColumn<T,?> getColumn()

Returns:

the column instance the layout data refers to

getIndex

public int getIndex()

Returns:

the column's index retrieved the first time by VFXTable.indexOf(VFXTableColumn) (then cached)

getWidth

public double getWidth()

Calls DoubleBinding.get() on the column's width binding.

isWidthValid

public boolean isWidthValid()

Returns:

whether DoubleBinding.isValid() is true

getPos

public double getPos()

Returns:

the stored column's x position

isVisible

public Boolean isVisible()

Returns:

whether the column is visible in the viewport. Beware, this can also return null to indicate that the value is invalid and should be re-computed by the cache

compareTo

public int compareTo(ColumnsLayoutCache<T>.LayoutInfo o)

Specified by:

compareTo in interface Comparable<ColumnsLayoutCache<T>.LayoutInfo>

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object