Class AbstractRegionPainter.PaintContext

java.lang.Object

javax.swing.plaf.nimbus.AbstractRegionPainter.PaintContext

Enclosing class:: AbstractRegionPainter

protected static class AbstractRegionPainter.PaintContext extends Object

A class encapsulating state useful when painting. Generally, instances of this class are created once, and reused for each paint request without modification. This class contains values useful when hinting the cache engine, and when decoding control points and bezier curve anchors.

Nested Class Summary

Modifier and Type	Class	Description
`protected static enum`	`AbstractRegionPainter.PaintContext.CacheMode`	Cache mode.

Constructor Summary

Constructor	Description
`PaintContext(Insets insets, Dimension canvasSize, boolean inverted)`	Creates a new PaintContext which does not attempt to cache or scale any cached images.
`PaintContext(Insets insets, Dimension canvasSize, boolean inverted, AbstractRegionPainter.PaintContext.CacheMode cacheMode, double maxH, double maxV)`	Creates a new PaintContext.

Method Summary

Methods declared in class Object

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

Modifier and Type	Method	Description
`protected Object`	`clone()`	Creates and returns a copy of this object.
`boolean`	`equals(Object obj)`	Indicates whether some other object is "equal to" this one.
`protected void`	`finalize()`	Deprecated, for removal: This API element is subject to removal in a future version. Finalization is deprecated and subject to removal in a future release.
`final Class<?>`	`getClass()`	Returns the runtime class of this `Object`.
`int`	`hashCode()`	Returns a hash code value for this object.
`final void`	`notify()`	Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()`	Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()`	Returns a string representation of the object.
`final void`	`wait()`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
`final void`	`wait(long timeoutMillis)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
`final void`	`wait(long timeoutMillis, int nanos)`	Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

Constructor Details

PaintContext

public PaintContext(Insets insets, Dimension canvasSize, boolean inverted)

Creates a new PaintContext which does not attempt to cache or scale any cached images.

Parameters:: insets - The stretching insets. May be null. If null, then assumed to be 0, 0, 0, 0.; canvasSize - The size of the canvas used when encoding the various x/y values. May be null. If null, then it is assumed that there are no encoded values, and any calls to one of the "decode" methods will return the passed in value.; inverted - Whether to "invert" the meaning of the 9-square grid and stretching insets

PaintContext

public PaintContext(Insets insets, Dimension canvasSize, boolean inverted, AbstractRegionPainter.PaintContext.CacheMode cacheMode, double maxH, double maxV)

Creates a new PaintContext.

Parameters:: insets - The stretching insets. May be null. If null, then assumed to be 0, 0, 0, 0.; canvasSize - The size of the canvas used when encoding the various x/y values. May be null. If null, then it is assumed that there are no encoded values, and any calls to one of the "decode" methods will return the passed in value.; inverted - Whether to "invert" the meaning of the 9-square grid and stretching insets; cacheMode - A hint as to which caching mode to use. If null, then set to no caching.; maxH - The maximum scale in the horizontal direction to use before punting and redrawing from scratch. For example, if maxH is 2, then we will attempt to scale any cached images up to 2x the canvas width before redrawing from scratch. Reasonable maxH values may improve painting performance. If set too high, then you may get poor looking graphics at higher zoom levels. Must be >= 1.; maxV - The maximum scale in the vertical direction to use before punting and redrawing from scratch. For example, if maxV is 2, then we will attempt to scale any cached images up to 2x the canvas height before redrawing from scratch. Reasonable maxV values may improve painting performance. If set too high, then you may get poor looking graphics at higher zoom levels. Must be >= 1.

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