aboutsummaryrefslogtreecommitdiff
path: root/libjava/classpath/java/awt/image/Kernel.java
diff options
context:
space:
mode:
Diffstat (limited to 'libjava/classpath/java/awt/image/Kernel.java')
-rw-r--r--libjava/classpath/java/awt/image/Kernel.java171
1 files changed, 0 insertions, 171 deletions
diff --git a/libjava/classpath/java/awt/image/Kernel.java b/libjava/classpath/java/awt/image/Kernel.java
deleted file mode 100644
index ae0ff14..0000000
--- a/libjava/classpath/java/awt/image/Kernel.java
+++ /dev/null
@@ -1,171 +0,0 @@
-/* Kernel.java -- Java class for an image processing kernel
- Copyright (C) 2004, 2005, 2006, 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 java.awt.image;
-
-/**
- * Kernel represents an image processing kernel. It gets used to hold
- * convolution filters among other purposes. It stores an array of float
- * values representing a 2-dimensional array in row-major order.
- *
- * @author Jerry Quinn (jlquinn@optonline.net)
- */
-public class Kernel implements Cloneable
-{
- /** The kernel width. */
- private final int width;
-
- /** The kernel height. */
- private final int height;
-
- /** Internal storage for the kernel's values. */
- private final float[] data;
-
- /**
- * Creates a new <code>Kernel</code> instance with the specified dimensions
- * and values. The first <code>width * height</code> values in the specified
- * <code>data</code> array are copied to internal storage.
- *
- * @param width the kernel width.
- * @param height the kernel height.
- * @param data the source data array (<code>null</code> not permitted).
- *
- * @throws IllegalArgumentException if <code>data.length</code> is less than
- * <code>width * height</code>.
- * @throws IllegalArgumentException if <code>width</code> or
- * <code>height</code> is less than zero.
- * @throws NullPointerException if <code>data</code> is <code>null</code>.
- */
- public Kernel(int width, int height, float[] data)
- throws IllegalArgumentException
- {
- this.width = width;
- this.height = height;
- if (data.length < width * height || width < 0 || height < 0)
- throw new IllegalArgumentException();
- this.data = new float[width * height];
- System.arraycopy(data, 0, this.data, 0, width * height);
- }
-
- /**
- * Returns the x-origin for the kernel, which is calculated as
- * <code>(width - 1) / 2</code>.
- *
- * @return The x-origin for the kernel.
- */
- public final int getXOrigin()
- {
- return (width - 1) / 2;
- }
-
- /**
- * Returns the y-origin for the kernel, which is calculated as
- * <code>(height - 1) / 2</code>.
- *
- * @return The y-origin for the kernel.
- */
- public final int getYOrigin()
- {
- return (height - 1) / 2;
- }
-
- /**
- * Returns the kernel width (as supplied to the constructor).
- *
- * @return The kernel width.
- */
- public final int getWidth()
- {
- return width;
- }
-
- /**
- * Returns the kernel height (as supplied to the constructor).
- *
- * @return The kernel height.
- */
- public final int getHeight()
- {
- return height;
- }
-
- /**
- * Returns an array containing a copy of the kernel data. If the
- * <code>data</code> argument is non-<code>null</code>, the kernel values
- * are copied into it and then <code>data</code> is returned as the result.
- * If the <code>data</code> argument is <code>null</code>, this method
- * allocates a new array then populates and returns it.
- *
- * @param data an array to copy the return values into (if
- * <code>null</code>, a new array is allocated).
- *
- * @return The array with copied values.
- *
- * @throws IllegalArgumentException if <code>data.length</code> is less than
- * the kernel's <code>width * height</code>.
- */
- public final float[] getKernelData(float[] data)
- throws IllegalArgumentException
- {
- if (data == null)
- return (float[]) this.data.clone();
-
- if (data.length < this.data.length)
- throw new IllegalArgumentException();
-
- System.arraycopy(this.data, 0, data, 0, this.data.length);
- return data;
- }
-
- /**
- * Returns a clone of this kernel.
- *
- * @return a clone of this Kernel.
- */
- public Object clone()
- {
- try
- {
- return super.clone();
- }
- catch (CloneNotSupportedException e)
- {
- throw (Error) new InternalError().initCause(e); // Impossible
- }
- }
-}