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javax.swing.plaf.nimbus

pack-priv final Class ScrollPanePainter

extends AbstractRegionPainter
Class Inheritance
Imports
java.awt.*, java.awt.geom.*, java.awt.image.*, javax.swing.*, .Painter

Field Summary

Modifier and TypeField and Description
pack-priv static final int
BACKGROUND_ENABLED

pack-priv static final int
BORDER_ENABLED

pack-priv static final int
BORDER_ENABLED_FOCUSED

private Color
color1

private Color
color2

private Object[]
componentColors

private AbstractRegionPainter.PaintContext
ctx

Hides javax.swing.plaf.nimbus.AbstractRegionPainter.ctx.

private Ellipse2D
ellipse

private Path2D
path

private Rectangle2D
rect

private RoundRectangle2D
roundRect

private int
state

Constructor Summary

AccessConstructor and Description
public
ScrollPanePainter(AbstractRegionPainter.PaintContext ctx, int state)

Method Summary

Modifier and TypeMethod and Description
private Path2D
decodePath1()

private Rectangle2D
decodeRect1()

private Rectangle2D
decodeRect2()

private Rectangle2D
decodeRect3()

private Rectangle2D
decodeRect4()

protected void
doPaint(Graphics2D
The Graphics2D surface to paint to
g, JComponent
The JComponent related to the drawing event. For example, if the region being rendered is Button, then c will be a JButton. If the region being drawn is ScrollBarSlider, then the component will be JScrollBar. This value may be null.
c, int
The width of the region to paint. Note that in the case of painting the foreground, this value may differ from c.getWidth().
width, int
The height of the region to paint. Note that in the case of painting the foreground, this value may differ from c.getHeight().
height, Object[]
The result of the call to getExtendedCacheKeys()
extendedCacheKeys)

Implements abstract javax.swing.plaf.nimbus.AbstractRegionPainter.doPaint.

Actually performs the painting operation.
protected final AbstractRegionPainter.PaintContext
getPaintContext()

Implements abstract javax.swing.plaf.nimbus.AbstractRegionPainter.getPaintContext.

Gets the PaintContext for this painting operation.

private void
paintBorderEnabled(Graphics2D g)

private void
paintBorderEnabledAndFocused(Graphics2D g)

Inherited from javax.swing.plaf.nimbus.AbstractRegionPainter:
configureGraphicsdecodeAnchorXdecodeAnchorYdecodeColordecodeColordecodeGradientdecodeRadialGradientdecodeXdecodeYgetComponentColorgetExtendedCacheKeyspaint

Field Detail

BACKGROUND_ENABLEDback to summary
pack-priv static final int BACKGROUND_ENABLED
BORDER_ENABLEDback to summary
pack-priv static final int BORDER_ENABLED
BORDER_ENABLED_FOCUSEDback to summary
pack-priv static final int BORDER_ENABLED_FOCUSED
color1back to summary
private Color color1
color2back to summary
private Color color2
componentColorsback to summary
private Object[] componentColors
ctxback to summary
private AbstractRegionPainter.PaintContext ctx

Hides javax.swing.plaf.nimbus.AbstractRegionPainter.ctx.

ellipseback to summary
private Ellipse2D ellipse
pathback to summary
private Path2D path
rectback to summary
private Rectangle2D rect
roundRectback to summary
private RoundRectangle2D roundRect
stateback to summary
private int state

Constructor Detail

ScrollPanePainterback to summary
public ScrollPanePainter(AbstractRegionPainter.PaintContext ctx, int state)

Method Detail

decodePath1back to summary
private Path2D decodePath1()
decodeRect1back to summary
private Rectangle2D decodeRect1()
decodeRect2back to summary
private Rectangle2D decodeRect2()
decodeRect3back to summary
private Rectangle2D decodeRect3()
decodeRect4back to summary
private Rectangle2D decodeRect4()
doPaintback to summary
protected void doPaint(Graphics2D g, JComponent c, int width, int height, Object[] extendedCacheKeys)

Implements abstract javax.swing.plaf.nimbus.AbstractRegionPainter.doPaint.

Doc from javax.swing.plaf.nimbus.AbstractRegionPainter.doPaint.

Actually performs the painting operation. Subclasses must implement this method. The graphics object passed may represent the actual surface being rendered to, or it may be an intermediate buffer. It has also been pre-translated. Simply render the component as if it were located at 0, 0 and had a width of width and a height of height. For performance reasons, you may want to read the clip from the Graphics2D object and only render within that space.

Parameters
g:Graphics2D

The Graphics2D surface to paint to

c:JComponent

The JComponent related to the drawing event. For example, if the region being rendered is Button, then c will be a JButton. If the region being drawn is ScrollBarSlider, then the component will be JScrollBar. This value may be null.

width:int

The width of the region to paint. Note that in the case of painting the foreground, this value may differ from c.getWidth().

height:int

The height of the region to paint. Note that in the case of painting the foreground, this value may differ from c.getHeight().

extendedCacheKeys:Object[]

The result of the call to getExtendedCacheKeys()

Annotations
@Override
getPaintContextback to summary
protected final AbstractRegionPainter.PaintContext getPaintContext()

Implements abstract javax.swing.plaf.nimbus.AbstractRegionPainter.getPaintContext.

Doc from javax.swing.plaf.nimbus.AbstractRegionPainter.getPaintContext.

Gets the PaintContext for this painting operation. This method is called on every paint, and so should be fast and produce no garbage. The PaintContext contains information such as cache hints. It also contains data necessary for decoding points at runtime, such as the stretching insets, the canvas size at which the encoded points were defined, and whether the stretching insets are inverted.

This method allows for subclasses to package the painting of different states with possibly different canvas sizes, etc, into one AbstractRegionPainter implementation.

Returns:AbstractRegionPainter.PaintContext

a PaintContext associated with this paint operation.

Annotations
@Override
paintBorderEnabledback to summary
private void paintBorderEnabled(Graphics2D g)
paintBorderEnabledAndFocusedback to summary
private void paintBorderEnabledAndFocused(Graphics2D g)