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com.sun.java.swing.plaf.gtk

pack-priv Class GTKStyleFactory

extends SynthStyleFactory
Class Inheritance
Imports
java.awt.Font, java.util.*, javax.swing.*, javax.swing.plaf.synth.*, com.sun.java.swing.plaf.gtk.GTKEngine.WidgetType
Author
Scott Violet

Nested and Inner Type Summary

Modifier and TypeClass and Description
private static class
GTKStyleFactory.ComplexKey

Represents a hash key used for fetching GTKStyle objects from the cache.

Field Summary

Modifier and TypeField and Description
private Font
defaultFont

private final Map<Object, GTKStyle>
stylesCache

Saves all styles that have been accessed.

Constructor Summary

AccessConstructor and Description
pack-priv
GTKStyleFactory()

Method Summary

Modifier and TypeMethod and Description
public synchronized SynthStyle
getStyle(JComponent
this parameter isn't used, may be null.
c, Region
of the region to get the style.
id)

Implements abstract javax.swing.plaf.synth.SynthStyleFactory.getStyle.

Returns the GTKStyle to use based on the Region id

pack-priv void
initStyles(Font defaultFont)

Field Detail

defaultFontback to summary
private Font defaultFont
stylesCacheback to summary
private final Map<Object, GTKStyle> stylesCache

Saves all styles that have been accessed. In most common cases, the hash key is simply the WidgetType, but in more complex cases it will be a ComplexKey object that contains arguments to help differentiate similar styles.

Constructor Detail

GTKStyleFactoryback to summary
pack-priv GTKStyleFactory()

Method Detail

getStyleback to summary
public synchronized SynthStyle getStyle(JComponent c, Region id)

Implements abstract javax.swing.plaf.synth.SynthStyleFactory.getStyle.

Returns the GTKStyle to use based on the Region id

Parameters
c:JComponent

this parameter isn't used, may be null.

id:Region

of the region to get the style.

Annotations
@Override
initStylesback to summary
pack-priv void initStyles(Font defaultFont)
com.sun.java.swing.plaf.gtk back to summary

private Class GTKStyleFactory.ComplexKey

extends Object
Class Inheritance
Represents a hash key used for fetching GTKStyle objects from the cache. In most cases only the WidgetType is used for lookup, but in some complex cases, other Object arguments can be specified via a ComplexKey to differentiate the various styles.

Field Summary

Modifier and TypeField and Description
private final Object[]
args

private final GTKEngine.WidgetType
wt

Constructor Summary

AccessConstructor and Description
pack-priv
ComplexKey(GTKEngine.WidgetType wt, Object... args)

Method Summary

Modifier and TypeMethod and Description
public boolean
equals(Object o)

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 String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.

Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAllwaitwaitwait

Field Detail

argsback to summary
private final Object[] args
wtback to summary
private final GTKEngine.WidgetType wt

Constructor Detail

ComplexKeyback to summary
pack-priv ComplexKey(GTKEngine.WidgetType wt, Object... args)

Method Detail

equalsback to summary
public boolean equals(Object o)

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
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