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Diffstat (limited to 'libjava/javax/swing/border/AbstractBorder.java')
| -rw-r--r-- | libjava/javax/swing/border/AbstractBorder.java | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/libjava/javax/swing/border/AbstractBorder.java b/libjava/javax/swing/border/AbstractBorder.java deleted file mode 100644 index d755b6779d8..00000000000 --- a/libjava/javax/swing/border/AbstractBorder.java +++ /dev/null @@ -1,192 +0,0 @@ -/* AbstractBorder.java -- - Copyright (C) 2003 Free Software Foundation, Inc. - -This file is part of GNU Classpath. - -GNU Classpath is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2, or (at your option) -any later version. - -GNU Classpath is distributed in the hope that it will be useful, but -WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU -General Public License for more details. - -You should have received a copy of the GNU General Public License -along with GNU Classpath; see the file COPYING. If not, write to the -Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA -02110-1301 USA. - -Linking this library statically or dynamically with other modules is -making a combined work based on this library. Thus, the terms and -conditions of the GNU General Public License cover the whole -combination. - -As a special exception, the copyright holders of this library give you -permission to link this library with independent modules to produce an -executable, regardless of the license terms of these independent -modules, and to copy and distribute the resulting executable under -terms of your choice, provided that you also meet, for each linked -independent module, the terms and conditions of the license of that -module. An independent module is a module which is not derived from -or based on this library. If you modify this library, you may extend -this exception to your version of the library, but you are not -obligated to do so. If you do not wish to do so, delete this -exception statement from your version. */ - - -package javax.swing.border; - -import java.awt.Component; -import java.awt.Graphics; -import java.awt.Insets; -import java.awt.Rectangle; -import java.io.Serializable; - - -/** - * An invisible zero-width border, serving as a base class for - * implementing more interesting borders. - * - * @author Sascha Brawer (brawer@dandelis.ch) - * @author Ronald Veldema (rveldema@cs.vu.nl) - */ -public abstract class AbstractBorder - implements Border, Serializable -{ - static final long serialVersionUID = -545885975315191844L; - - - /** - * Constructs a new AbstractBorder. - */ - public AbstractBorder () - { - } - - - /** - * Performs nothing, because the default implementation provided by - * this class is an invisible, zero-width border. Subclasses will - * likely want to override this method, but they are not required - * for doing so. - * - * @param c the component whose border is to be painted. - * @param g the graphics for painting. - * @param x the horizontal position for painting the border. - * @param y the vertical position for painting the border. - * @param width the width of the available area for painting the border. - * @param height the height of the available area for painting the border. - */ - public void paintBorder (Component c, Graphics g, - int x, int y, int width, int height) - { - /* A previous version of Classpath had emitted a warning when - * this method was called. The warning was removed because it is - * perfectly legal for a subclass to not override the paintBorder - * method. An example would be EmptyBorder. - */ - } - - - /** - * Measures the width of this border. - * - * @param c the component whose border is to be measured. - * - * @return an Insets object whose <code>left</code>, <code>right</code>, - * <code>top</code> and <code>bottom</code> fields indicate the - * width of the border at the respective edge, which is zero - * for the default implementation provided by AbstractButton. - * - * @see #getBorderInsets(java.awt.Component, java.awt.Insets) - */ - public Insets getBorderInsets (Component c) - { - return new Insets (0, 0, 0, 0); - } - - - /** - * Determines the insets of this border. The implementation provided - * by AbstractButton sets the <code>left</code>, <code>right</code>, - * <code>top</code> and <code>bottom</code> fields of the passed - * <code>insets</code> parameter to zero. - * - * @param c the component whose border is to be measured. - * - * @return the same object that was passed for <code>insets</code>. - * - * @see #getBorderInsets() - */ - public Insets getBorderInsets (Component c, Insets insets) - { - insets.left = insets.right = insets.top = insets.bottom = 0; - return insets; - } - - - /** - * Determines whether or not this border is opaque. An opaque border - * fills every pixel in its area when painting. Partially - * translucent borders must return <code>false</code>, or ugly - * artifacts can appear on screen. The default implementation - * provided by AbstractBorder always returns <code>false</code>. - * - * @return <code>false</code>. - */ - public boolean isBorderOpaque () - { - return false; - } - - - /** - * Returns a rectangle that covers the specified area minus this - * border. Components that wish to determine an area into which - * they can safely draw without intersecting with a border might - * want to use this helper method. - * - * @param c the component in the center of this border. - * @param x the horizontal position of the border. - * @param y the vertical position of the border. - * @param width the width of the available area for the border. - * @param height the height of the available area for the border. - */ - public Rectangle getInteriorRectangle (Component c, - int x, int y, int width, int height) - { - return getInteriorRectangle (c, this, x, y, width, height); - } - - - /** - * Returns a rectangle that covers the specified area minus a - * border. Components that wish to determine an area into which - * they can safely draw without intersecting with a border might - * want to use this helper method. - * - * @param c the component in the center of this border. - * @param x the horizontal position of the border. - * @param y the vertical position of the border. - * @param width the width of the available area for the border. - * @param height the height of the available area for the border. - */ - public static Rectangle getInteriorRectangle (Component c, Border b, - int x, int y, int width, int height) - { - Insets borderInsets; - - if (b != null) - { - borderInsets = b.getBorderInsets (c); - x += borderInsets.left; - y += borderInsets.top; - width -= borderInsets.left + borderInsets.right; - height -= borderInsets.top + borderInsets.bottom; - } - - return new Rectangle (x, y, width, height); - } -} |
