Class FlatDropShadowBorder

java.lang.Object

javax.swing.border.AbstractBorder

javax.swing.border.EmptyBorder

javax.swing.plaf.BorderUIResource.EmptyBorderUIResource

com.formdev.flatlaf.ui.FlatEmptyBorder

com.formdev.flatlaf.ui.FlatDropShadowBorder

All Implemented Interfaces:

FlatStylingSupport.StyleableBorder, Serializable, Border, UIResource

public class FlatDropShadowBorder
extends FlatEmptyBorder
implements FlatStylingSupport.StyleableBorder

Paints a drop shadow border around the component. Supports 1-sided, 2-side, 3-sided or 4-sided drop shadows.

The shadow insets allow specifying drop shadow thickness for each side. A zero or negative value hides the drop shadow on that side. A negative value can be used to indent the drop shadow on corners. E.g. -4 on left indents drop shadow at top-left and bottom-left corners by 4 pixels.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private Color	lastShadowColor
private float	lastShadowOpacity
private int	lastShadowSize
private double	lastSystemScaleFactor
private float	lastUserScaleFactor
protected Color	shadowColor
private Image	shadowImage
protected Insets	shadowInsets
protected float	shadowOpacity
private int	shadowSize

Fields inherited from class EmptyBorder

bottom, left, right, top

Constructor Summary

Constructors

Constructor	Description
FlatDropShadowBorder()
FlatDropShadowBorder(Color shadowColor)
FlatDropShadowBorder(Color shadowColor, int shadowSize, float shadowOpacity)
FlatDropShadowBorder(Color shadowColor, Insets shadowInsets, float shadowOpacity)

Method Summary

Modifier and Type	Method	Description
Object	applyStyleProperty(String key, Object value)
private static BufferedImage	createShadowImage(Color shadowColor, int shadowSize, float shadowOpacity, float scaleFactor)
Map<String,Class<?>>	getStyleableInfos()
Object	getStyleableValue(String key)
private int	maxInset(Insets shadowInsets)
private static Insets	nonNegativeInsets(Insets shadowInsets)
void	paintBorder(Component c, Graphics g, int x, int y, int width, int height)
private void	paintImpl(Graphics2D g, int x, int y, int width, int height, double scaleFactor)
private int	scale(int value, double scaleFactor)

Methods inherited from class FlatEmptyBorder

applyStyleProperty, getBorderInsets, getBorderInsets, getStyleableValue, getUnscaledBorderInsets, scaleInsets

Methods inherited from class EmptyBorder

isBorderOpaque

Methods inherited from class AbstractBorder

getBaseline, getBaselineResizeBehavior, getBorderInsets, getInteriorRectangle, getInteriorRectangle

Methods inherited from class Object

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

Field Details

shadowColor

protected Color shadowColor

shadowInsets

protected Insets shadowInsets

shadowOpacity

protected float shadowOpacity

shadowSize

private int shadowSize

shadowImage

private Image shadowImage

lastShadowColor

private Color lastShadowColor

lastShadowOpacity

private float lastShadowOpacity

lastShadowSize

private int lastShadowSize

lastSystemScaleFactor

private double lastSystemScaleFactor

lastUserScaleFactor

private float lastUserScaleFactor

Constructor Details

FlatDropShadowBorder

public FlatDropShadowBorder()

FlatDropShadowBorder

public FlatDropShadowBorder(Color shadowColor)

FlatDropShadowBorder

public FlatDropShadowBorder(Color shadowColor,
 int shadowSize,
 float shadowOpacity)

FlatDropShadowBorder

public FlatDropShadowBorder(Color shadowColor,
 Insets shadowInsets,
 float shadowOpacity)

Method Details

nonNegativeInsets

private static Insets nonNegativeInsets(Insets shadowInsets)

maxInset

private int maxInset(Insets shadowInsets)

applyStyleProperty

public Object applyStyleProperty(String key,
 Object value)

Specified by:

applyStyleProperty in interface FlatStylingSupport.StyleableBorder

Since:

2

getStyleableInfos

public Map<String,Class<?>> getStyleableInfos()

Specified by:

getStyleableInfos in interface FlatStylingSupport.StyleableBorder

Since:

2

getStyleableValue

public Object getStyleableValue(String key)

Specified by:

getStyleableValue in interface FlatStylingSupport.StyleableBorder

Since:

2.5

paintBorder

public void paintBorder(Component c,
 Graphics g,
 int x,
 int y,
 int width,
 int height)

Specified by:

paintBorder in interface Border

Overrides:

paintBorder in class EmptyBorder

paintImpl

private void paintImpl(Graphics2D g,
 int x,
 int y,
 int width,
 int height,
 double scaleFactor)

scale

private int scale(int value,
 double scaleFactor)

createShadowImage

private static BufferedImage createShadowImage(Color shadowColor,
 int shadowSize,
 float shadowOpacity,
 float scaleFactor)