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91 lines
2.5 KiB
91 lines
2.5 KiB
/*
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* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
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* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*
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*/
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package javax.swing.border;
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import java.awt.Graphics;
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import java.awt.Insets;
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import java.awt.Rectangle;
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import java.awt.Component;
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/**
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* Interface describing an object capable of rendering a border
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* around the edges of a swing component.
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* For examples of using borders see
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* <a href="https://docs.oracle.com/javase/tutorial/uiswing/components/border.htmll">How to Use Borders</a>,
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* a section in <em>The Java Tutorial.</em>
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* <p>
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* In the Swing component set, borders supercede Insets as the
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* mechanism for creating a (decorated or plain) area around the
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* edge of a component.
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* <p>
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* Usage Notes:
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* <ul>
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* <li>Use EmptyBorder to create a plain border (this mechanism
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* replaces its predecessor, <code>setInsets</code>).
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* <li>Use CompoundBorder to nest multiple border objects, creating
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* a single, combined border.
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* <li>Border instances are designed to be shared. Rather than creating
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* a new border object using one of border classes, use the
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* BorderFactory methods, which produces a shared instance of the
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* common border types.
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* <li>Additional border styles include BevelBorder, SoftBevelBorder,
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* EtchedBorder, LineBorder, TitledBorder, and MatteBorder.
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* <li>To create a new border class, subclass AbstractBorder.
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* </ul>
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*
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* @author David Kloba
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* @author Amy Fowler
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* @see javax.swing.BorderFactory
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* @see EmptyBorder
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* @see CompoundBorder
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*/
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public interface Border
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{
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/**
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* Paints the border for the specified component with the specified
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* position and size.
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* @param c the component for which this border is being painted
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* @param g the paint graphics
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* @param x the x position of the painted border
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* @param y the y position of the painted border
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* @param width the width of the painted border
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* @param height the height of the painted border
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*/
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void paintBorder(Component c, Graphics g, int x, int y, int width, int height);
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/**
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* Returns the insets of the border.
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* @param c the component for which this border insets value applies
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*/
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Insets getBorderInsets(Component c);
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/**
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* Returns whether or not the border is opaque. If the border
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* is opaque, it is responsible for filling in it's own
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* background when painting.
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*/
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boolean isBorderOpaque();
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}
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