Module java.desktop
Package javax.swing.text.html

Class StyleSheet.BoxPainter

java.lang.Object
javax.swing.text.html.StyleSheet.BoxPainter
All Implemented Interfaces:
Serializable
Enclosing class:
StyleSheet
public static class StyleSheet.BoxPainter
extends Object
implements Serializable
Class to carry out some of the duties of CSS formatting. Implementations of this class enable views to present the CSS formatting while not knowing anything about how the CSS values are being cached.

As a delegate of Views, this object is responsible for the insets of a View and making sure the background is maintained according to the CSS attributes.

  • Method Details

    • getInset

      public float getInset​(int side, View v)
      Fetches the inset needed on a given side to account for the margin, border, and padding.
      Parameters:
      side - The size of the box to fetch the inset for. This can be View.TOP, View.LEFT, View.BOTTOM, or View.RIGHT.
      v - the view making the request. This is used to get the AttributeSet, and may be used to resolve percentage arguments.
      Returns:
      the inset needed for the margin, border and padding.
      Throws:
      IllegalArgumentException - for an invalid direction

    • paint

      public void paint​(Graphics g, float x, float y, float w, float h, View v)
      Paints the CSS box according to the attributes given. This should paint the border, padding, and background.
      Parameters:
      g - the rendering surface.
      x - the x coordinate of the allocated area to render into.
      y - the y coordinate of the allocated area to render into.
      w - the width of the allocated area to render into.
      h - the height of the allocated area to render into.
      v - the view making the request. This is used to get the AttributeSet, and may be used to resolve percentage arguments.