org.openstreetmap.josm.gui.mappaint

Class StyleCache

java.lang.Object

org.openstreetmap.josm.gui.mappaint.StyleCache

public final class StyleCache
extends java.lang.Object

Caches styles for a single primitive.

This object is immutable.

Field Summary

Fields

Modifier and Type	Field and Description
static StyleCache	EMPTY_STYLECACHE
private static Storage<StyleCache>	internPool
private static int	PLAIN
private static int	SELECTED
private DividedScale<StyleElementList>[]	states

Constructor Summary

Constructors

Modifier	Constructor and Description
private	StyleCache()
private	StyleCache(StyleCache sc)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
private static int	getIndex(boolean selected)
static int	getInternPoolSize() Get the size of the intern pool.
Pair<StyleElementList,Range>	getWithRange(double scale, boolean selected)
int	hashCode()
private StyleCache	intern() Like String.intern() (reduce memory consumption).
StyleCache	put(StyleElementList o, Range r, boolean selected) Creates a new copy of this style cache with a new entry added.

Methods inherited from class java.lang.Object

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

Field Detail

internPool

private static final Storage<StyleCache> internPool

EMPTY_STYLECACHE

public static final StyleCache EMPTY_STYLECACHE

PLAIN

private static final int PLAIN

See Also:

Constant Field Values

SELECTED

private static final int SELECTED

See Also:

Constant Field Values

states

private final DividedScale<StyleElementList>[] states

Constructor Detail

StyleCache

private StyleCache(StyleCache sc)

StyleCache

private StyleCache()

Method Detail

put

public StyleCache put(StyleElementList o,
                      Range r,
                      boolean selected)

Creates a new copy of this style cache with a new entry added.

Parameters:

o - The style to cache.

r - The range the style is for.

selected - The style list we should use (selected/unselected)

Returns:

The new object.

getWithRange

public Pair<StyleElementList,Range> getWithRange(double scale,
                                                 boolean selected)

getIndex

private static int getIndex(boolean selected)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

intern

private StyleCache intern()

Like String.intern() (reduce memory consumption). StyleCache must not be changed after it has been added to the intern pool.

Returns:

style cache

getInternPoolSize

public static int getInternPoolSize()

Get the size of the intern pool. Only for tests!

Returns:

size of the intern pool