Class LineBorder

java.lang.Object

vaadinx.swing.border.AbstractBorder

vaadinx.swing.border.LineBorder

All Implemented Interfaces:

Serializable, Border

public class LineBorder
extends AbstractBorder

Port of LineBorder. Solid rectangular border around the component. Optional rounded corners.

CSS mapping: border: <thickness>px solid <color> plus a border-radius when rounded — close-enough to Swing's paint output for R_best_effort_behaviour best-effort. Thick line borders render identically in both stacks; the difference is inner-pixel-perfect anti-aliasing, which R_layouts_close_enough carves out.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected final Color	lineColor
protected final boolean	roundedCorners
protected final int	thickness

Constructor Summary

Constructors

Constructor	Description
LineBorder(Color color)
LineBorder(Color color, int thickness)
LineBorder(Color color, int thickness, boolean roundedCorners)

Method Summary

Modifier and Type	Method	Description
void	applyCss(com.vaadin.flow.dom.Element element)	Write this border's CSS onto the target element.
static LineBorder	createBlackLineBorder()
static LineBorder	createGrayLineBorder()
Insets	getBorderInsets(Component c)
Insets	getBorderInsets(Component c, Insets target)	Fill-the-arg variant of getBorderInsets — concrete borders override when they want to avoid the Insets allocation.
Color	getLineColor()
boolean	getRoundedCorners()
int	getThickness()
boolean	isBorderOpaque()

Methods inherited from class AbstractBorder

clearBorderCss, paintBorder

Methods inherited from class Object

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

Field Details

lineColor

protected final Color lineColor

thickness

protected final int thickness

roundedCorners

protected final boolean roundedCorners

Constructor Details

LineBorder

public LineBorder(Color color)

LineBorder

public LineBorder(Color color,
 int thickness)

LineBorder

public LineBorder(Color color,
 int thickness,
 boolean roundedCorners)

Method Details

getLineColor

public Color getLineColor()

getThickness

public int getThickness()

getRoundedCorners

public boolean getRoundedCorners()

getBorderInsets

public Insets getBorderInsets(Component c)

Specified by:

getBorderInsets in interface Border

Overrides:

getBorderInsets in class AbstractBorder

getBorderInsets

public Insets getBorderInsets(Component c,
 Insets target)

Description copied from class: AbstractBorder

Fill-the-arg variant of getBorderInsets — concrete borders override when they want to avoid the Insets allocation. Default reads AbstractBorder.getBorderInsets(vaadinx.awt.Component) and copies.

Overrides:

getBorderInsets in class AbstractBorder

isBorderOpaque

public boolean isBorderOpaque()

Specified by:

isBorderOpaque in interface Border

Overrides:

isBorderOpaque in class AbstractBorder

applyCss

public void applyCss(com.vaadin.flow.dom.Element element)

Description copied from class: AbstractBorder

Write this border's CSS onto the target element. Called by JComponent.setBorder(Border). Concrete border classes override to emit the CSS that represents them (padding for EmptyBorder, border for LineBorder, per-side for MatteBorder, …). The base implementation clears any previously-installed border CSS via AbstractBorder.clearBorderCss(Element) and writes nothing, which is the honest behaviour for a user-authored custom AbstractBorder that didn't override this hook.

Typical override: clearBorderCss(e); set("border", …);. Always clear first so a previous border's keys don't linger.

Overrides:

applyCss in class AbstractBorder

createBlackLineBorder

public static LineBorder createBlackLineBorder()

createGrayLineBorder

public static LineBorder createGrayLineBorder()