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org.eclipse.swt.custom
Class StyleRange

java.lang.Object
  

org.eclipse.swt.graphics.TextStyle
      
org.eclipse.swt.custom.StyleRange

All Implemented Interfaces:

Cloneable, org.eclipse.swt.internal.CloneableCompatibility

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public class StyleRange
extends 
TextStyle
implements org.eclipse.swt.internal.CloneableCompatibility

StyleRange defines a set of styles for a specified range of text.

The hashCode() method in this class uses the values of the public fields to compute the hash value. When storing instances of the class in hashed collections, do not modify these fields after the object has been inserted.

See Also:

Sample code and further information

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Field Summary
int	fontStyle           the font style of the range.
int	length           the length of the range
int	start           the start offset of the range, zero-based from the document start

 

Fields inherited from class org.eclipse.swt.graphics. TextStyle
background, borderColor, borderStyle, data, font, foreground, metrics, rise, strikeout, strikeoutColor, underline, underlineColor, underlineStyle

 

Constructor Summary
StyleRange ()           Create a new style range with no styles
StyleRange (int start, int length, Color foreground, Color background)           Create a new style range.
StyleRange (int start, int length, Color foreground, Color background, int fontStyle)           Create a new style range.
StyleRange ( TextStyle style)           Create a new style range from an existing text style.

 

Method Summary
Object	clone ()           Returns a new StyleRange with the same values as this StyleRange.
boolean	equals ( Object object)           Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.
int	hashCode ()           Returns an integer hash code for the receiver.
boolean	isUnstyled ()           Returns whether or not the receiver is unstyled (i.e., does not have any style attributes specified).
boolean	similarTo ( StyleRange style)           Compares the specified object to this StyleRange and answer if the two are similar.
String	toString ()           Returns a string containing a concise, human-readable description of the receiver.

 

Methods inherited from class java.lang. Object
finalize, getClass, notify, notifyAll, wait, wait, wait

 

Field Detail

start

public int start

the start offset of the range, zero-based from the document start

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length

public int length

the length of the range

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fontStyle

public int fontStyle

the font style of the range. It may be a combination of SWT.NORMAL, SWT.ITALIC or SWT.BOLD Note: the font style is not used if the font attribute is set

Constructor Detail

StyleRange

public StyleRange()

Create a new style range with no styles

Since:

3.2

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StyleRange

public StyleRange(
TextStyle style)

Create a new style range from an existing text style.

Parameters:

style - the text style to copy

Since:

3.4

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StyleRange

public StyleRange(int start,
                  int length,
                  
Color foreground,
                  
Color background)

Create a new style range.

Parameters:

start - start offset of the style

length - length of the style

foreground - foreground color of the style, null if none

background - background color of the style, null if none

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StyleRange

public StyleRange(int start,
                  int length,
                  
Color foreground,
                  
Color background,
                  int fontStyle)

Create a new style range.

Parameters:

start - start offset of the style

length - length of the style

foreground - foreground color of the style, null if none

background - background color of the style, null if none

fontStyle - font style of the style, may be SWT.NORMAL, SWT.ITALIC or SWT.BOLD

Method Detail

equals

public boolean equals(
Object object)

Compares the argument to the receiver, and returns true if they represent the same object using a class specific comparison.

Overrides:

equals in class TextStyle

Parameters:

object - the object to compare with this object

Returns:

true if the object is the same as this object and false otherwise

See Also:

hashCode()

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hashCode

public int hashCode()

Returns an integer hash code for the receiver. Any two objects that return true when passed to equals must return the same value for this method.

Overrides:

hashCode in class TextStyle

Returns:

the receiver's hash

See Also:

equals(Object)

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isUnstyled

public boolean isUnstyled()

Returns whether or not the receiver is unstyled (i.e., does not have any style attributes specified).

Returns:

true if the receiver is unstyled, false otherwise.

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similarTo

public boolean similarTo(
StyleRange style)

Compares the specified object to this StyleRange and answer if the two are similar. The object must be an instance of StyleRange and have the same field values for except for start and length.

Parameters:

style - the object to compare with this object

Returns:

true if the objects are similar, false otherwise

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clone

public 
Object clone()

Returns a new StyleRange with the same values as this StyleRange.

Overrides:

clone in class Object

Returns:

a shallow copy of this StyleRange

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toString

public 
String toString()

Returns a string containing a concise, human-readable description of the receiver.

Overrides:

toString in class TextStyle

Returns:

a string representation of the StyleRange

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