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jfx.incubator.scene.control.richtext

public final Class TextPos

extends Object
implements Comparable<TextPos>
Class Inheritance
All Implemented Interfaces
java.lang.Comparable

An immutable position within the text.

Because it is immutable, it cannot track locations in the document which is being edited. For that, use Marker.

Since
24

Field Summary

Modifier and TypeField and Description
private final int
private final int
private final boolean
private final int
public static final TextPos
ZERO

A text position at the start of the document.

Constructor Summary

AccessConstructor and Description
public
TextPos(int
the paragraph index
index
,
int
the offset in the text which corresponds to the insertion position
offset
,
int
the character index
charIndex
,
boolean
indicates whether the position is at the leading edge of the character at charIndex
leading
)

Creates a new text position.

Method Summary

Modifier and TypeMethod and Description
public int

Returns:

the character index
charIndex
()

Returns the character index.

public int
compareTo(TextPos p)

Implements java.lang.Comparable.compareTo.

Compares this object with the specified object for order.

public boolean
equals(Object x)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

public int

Returns:

the paragraph index
index
()

Returns the paragraph index.

public boolean

Returns:

true if leading text position
isLeading
()

Determines whether the text position is leading or trailing.

public boolean

Returns:

true if same insertion index
isSameInsertionIndex
(TextPos
text position
p
)

Returns true if the specified insertion point is the same.

public int

Returns:

the offset
offset
()

Returns the offset into the plain text string (insertion index).

public static TextPos

Returns:

the instance of TextPos
ofLeading
(int
the paragraph index
index
,
int
the text offset
offset
)

Creates a new text position at the leading edge of the character at the specified text offset.

public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

charIndexback to summary
private final int charIndex
indexback to summary
private final int index
leadingback to summary
private final boolean leading
offsetback to summary
private final int offset
ZEROback to summary
public static final TextPos ZERO

A text position at the start of the document.

Constructor Detail

TextPosback to summary
public TextPos(int index, int offset, int charIndex, boolean leading)

Creates a new text position.

Parameters
index:int

the paragraph index

offset:int

the offset in the text which corresponds to the insertion position

charIndex:int

the character index

leading:boolean

indicates whether the position is at the leading edge of the character at charIndex

Method Detail

charIndexback to summary
public int charIndex()

Returns the character index.

Returns:int

the character index

compareToback to summary
public int compareTo(TextPos p)

Implements java.lang.Comparable.compareTo.

Doc from java.lang.Comparable.compareTo.

Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object.

The implementor must ensure signum(x.compareTo(y)) == -signum(y.compareTo(x)) for all x and y. (This implies that x.compareTo(y) must throw an exception if and only if y.compareTo(x) throws an exception.)

The implementor must also ensure that the relation is transitive: (x.compareTo(y) > 0 && y.compareTo(z) > 0) implies x.compareTo(z) > 0.

Finally, the implementor must ensure that x.compareTo(y)==0 implies that signum(x.compareTo(z)) == signum(y.compareTo(z)), for all z.

Annotations
@Override
equalsback to summary
public boolean equals(Object x)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Annotations
@Override
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Annotations
@Override
indexback to summary
public int index()

Returns the paragraph index.

Returns:int

the paragraph index

isLeadingback to summary
public boolean isLeading()

Determines whether the text position is leading or trailing.

Returns:boolean

true if leading text position

isSameInsertionIndexback to summary
public boolean isSameInsertionIndex(TextPos p)

Returns true if the specified insertion point is the same.

Parameters
p:TextPos

text position

Returns:boolean

true if same insertion index

offsetback to summary
public int offset()

Returns the offset into the plain text string (insertion index).

Returns:int

the offset

ofLeadingback to summary
public static TextPos ofLeading(int index, int offset)

Creates a new text position at the leading edge of the character at the specified text offset.

Parameters
index:int

the paragraph index

offset:int

the text offset

Returns:TextPos

the instance of TextPos

toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object. Satisfying this method's contract implies a non-null result must be returned.

Annotations
@Override