com.alee.utils
Class ShapeCache

java.lang.Object
  com.alee.utils.ShapeCache

public class ShapeCache
extends java.lang.Object

This utility class can be used to implement shape caching withing any painter or component. This might be useful to improve component painting performance in case it uses complex shapes.

Author:

Mikle Garin

Constructor Summary

ShapeCache()

Method Summary

static <T extends java.awt.Shape> T

getShape(java.awt.Component component, java.lang.String shapeId, DataProvider<T> shapeProvider, java.lang.Object... settings) Returns cached component shape.

Methods inherited from class java.lang.Object

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

Constructor Detail

ShapeCache

public ShapeCache()

Method Detail

getShape

public static <T extends java.awt.Shape> T getShape(java.awt.Component component,
                                                    java.lang.String shapeId,
                                                    DataProvider<T> shapeProvider,
                                                    java.lang.Object... settings)

Returns cached component shape. If shape is not yet cached it will be created. If shape settings are changed from the last time it was queued it will be re-created.

Type Parameters:

T - shape type

Parameters:

component - component for which shape is cached

shapeId - unique shape ID

shapeProvider - shape provider

settings - shape settings used as a shape key

Returns:

cached component shape