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Diffstat (limited to 'libjava/gnu/java/awt/ComponentDataBlitOp.java')
| -rw-r--r-- | libjava/gnu/java/awt/ComponentDataBlitOp.java | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/libjava/gnu/java/awt/ComponentDataBlitOp.java b/libjava/gnu/java/awt/ComponentDataBlitOp.java deleted file mode 100644 index 545427ea767..00000000000 --- a/libjava/gnu/java/awt/ComponentDataBlitOp.java +++ /dev/null @@ -1,156 +0,0 @@ -/* Copyright (C) 2000, 2002, 2004 Free Software Foundation - -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 gnu.java.awt; - -import java.awt.RenderingHints; -import java.awt.geom.Point2D; -import java.awt.geom.Rectangle2D; -import java.awt.image.ComponentSampleModel; -import java.awt.image.DataBuffer; -import java.awt.image.Raster; -import java.awt.image.RasterOp; -import java.awt.image.WritableRaster; - -/** - * This raster copy operation assumes that both source and destination - * sample models are tightly pixel packed and contain the same number - * of bands. - * - * @throws java.lang.ClassCastException if the sample models of the - * rasters are not of type ComponentSampleModel. - * - * @author Rolf W. Rasmussen (rolfwr@ii.uib.no) - */ -public class ComponentDataBlitOp implements RasterOp -{ - public static final ComponentDataBlitOp INSTANCE = new ComponentDataBlitOp(); - - public WritableRaster filter(Raster src, WritableRaster dest) - { - if (dest == null) - dest = createCompatibleDestRaster(src); - - DataBuffer srcDB = src.getDataBuffer(); - DataBuffer destDB = dest.getDataBuffer(); - - ComponentSampleModel srcSM = (ComponentSampleModel) src.getSampleModel(); - ComponentSampleModel destSM = (ComponentSampleModel) dest.getSampleModel(); - - - // Calculate offset to data in the underlying arrays: - - int srcScanlineStride = srcSM.getScanlineStride(); - int destScanlineStride = destSM.getScanlineStride(); - int srcX = src.getMinX() - src.getSampleModelTranslateX(); - int srcY = src.getMinY() - src.getSampleModelTranslateY(); - int destX = dest.getMinX() - dest.getSampleModelTranslateX(); - int destY = dest.getMinY() - dest.getSampleModelTranslateY(); - - int numBands = srcSM.getNumBands(); - - /* We can't use getOffset(x, y) from the sample model since we - don't want the band offset added in. */ - - int srcOffset = - numBands*srcX + srcScanlineStride*srcY + // from sample model - srcDB.getOffset(); // from data buffer - - int destOffset = - numBands*destX + destScanlineStride*destY + // from sample model - destDB.getOffset(); // from data buffer - - // Determine how much, and how many times to blit. - - int rowSize = src.getWidth()*numBands; - int h = src.getHeight(); - - if ((rowSize == srcScanlineStride) && - (rowSize == destScanlineStride)) - { - // collapse scan line blits to one large blit. - rowSize *= h; - h = 1; - } - - - // Do blitting - - Object srcArray = Buffers.getData(srcDB); - Object destArray = Buffers.getData(destDB); - - for (int yd = 0; yd<h; yd++) - { - System.arraycopy(srcArray, srcOffset, - destArray, destOffset, - rowSize); - srcOffset += srcScanlineStride; - destOffset += destScanlineStride; - } - - - return dest; - } - - public Rectangle2D getBounds2D(Raster src) - { - return src.getBounds(); - } - - public WritableRaster createCompatibleDestRaster(Raster src) { - - /* FIXME: Maybe we should explicitly create a raster with a - tightly pixel packed sample model, rather than assuming - that the createCompatibleWritableRaster() method in Raster - will create one. */ - - return src.createCompatibleWritableRaster(); - } - - public Point2D getPoint2D(Point2D srcPoint, Point2D destPoint) - { - if (destPoint == null) - return (Point2D) srcPoint.clone(); - - destPoint.setLocation(srcPoint); - return destPoint; - } - - public RenderingHints getRenderingHints() - { - throw new UnsupportedOperationException("not implemented"); - } -} |
