Java javax.swing.border Class StrokeBorder（JDK8）

Constructor Detail

• StrokeBorder

  public StrokeBorder(BasicStroke stroke)

  Creates a border of the specified stroke. The component's foreground color will be used to render the border.

  Parameters:

  stroke - the BasicStroke object used to stroke a shape

  Throws:

  NullPointerException - if the specified stroke is null

• StrokeBorder

  @ConstructorProperties(value={"stroke","paint"})
  public StrokeBorder(BasicStroke stroke,
                                                                       Paint paint)

  Creates a border of the specified stroke and paint. If the specified paint is null, the component's foreground color will be used to render the border.

  Parameters:

  stroke - the BasicStroke object used to stroke a shape

  paint - the Paint object used to generate a color

  Throws:

  NullPointerException - if the specified stroke is null

Method Detail

• paintBorder

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

  Paints the border for the specified component with the specified position and size. If the border was not specified with a Paint object, the component's foreground color will be used to render the border. If the component's foreground color is not available, the default color of the Graphics object will be used.

  Specified by:

  paintBorder in interface Border

  Overrides:

  paintBorder in class AbstractBorder

  Parameters:

  c - the component for which this border is being painted

  g - the paint graphics

  x - the x position of the painted border

  y - the y position of the painted border

  width - the width of the painted border

  height - the height of the painted border

  Throws:

  NullPointerException - if the specified g is null

• getBorderInsets

  public Insets getBorderInsets(Component c,
                                Insets insets)

  Reinitializes the insets parameter with this border's current insets. Every inset is the smallest (closest to negative infinity) integer value that is greater than or equal to the line width of the stroke that is used to paint the border.

  Overrides:

  getBorderInsets in class AbstractBorder

  Parameters:

  c - the component for which this border insets value applies

  insets - the Insets object to be reinitialized

  Returns:

  the reinitialized insets parameter

  Throws:

  NullPointerException - if the specified insets is null

  See Also:

  Math.ceil(double)

• getStroke

  public BasicStroke getStroke()

  Returns the BasicStroke object used to stroke a shape during the border rendering.

  Returns:

  the BasicStroke object

• getPaint

  public Paint getPaint()

  Returns the Paint object used to generate a color during the border rendering.

  Returns:

  the Paint object or null if the paint parameter is not set