org.netbeans.editor

Class FontMetricsCache

java.lang.Object

org.netbeans.editor.FontMetricsCache

public class FontMetricsCache
extends Object

Static cache that holds the font metrics for the fonts. This can generally speed up drawing if the metrics are not cached directly by the system.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static interface	FontMetricsCache.Info

Constructor Summary

Constructors

Constructor and Description
FontMetricsCache()

Method Summary

Modifier and Type	Method and Description
static void	clear() Clear all the metrics from the cache.
static FontMetrics	getFontMetrics(Font f, Component c) Get the font-metrics for the given font.
static FontMetrics	getFontMetrics(Font f, Graphics g) Get the font-metrics for the given font.
static FontMetricsCache.Info	getInfo(Font f) Get the info about the space-width and strike-through and underline constants.

Methods inherited from class java.lang.Object

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

Constructor Detail

FontMetricsCache

public FontMetricsCache()

Method Detail

getFontMetrics

public static FontMetrics getFontMetrics(Font f,
                                         Component c)

Get the font-metrics for the given font.

Parameters:

font - font for which the metrics is being retrieved.

c - component that is used to retrieve the metrics in case it's not yet in the cache.

getFontMetrics

public static FontMetrics getFontMetrics(Font f,
                                         Graphics g)

Get the font-metrics for the given font.

Parameters:

font - font for which the metrics is being retrieved.

g - graphics that is used to retrieve the metrics in case it's not yet in the cache.

getInfo

public static FontMetricsCache.Info getInfo(Font f)

Get the info about the space-width and strike-through and underline constants.

Parameters:

font - font for which the info is being retrieved.

clear

public static void clear()

Clear all the metrics from the cache. It's usually done when any of the editor ui is being garbage collected to ensure there will be no more unused metrics.