1 files changed, 153 insertions, 0 deletions
diff --git a/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
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+++ b/libjava/classpath/gnu/javax/imageio/bmp/BMPImageReader.java
@@ -0,0 +1,153 @@
+/* BMPImageReader.java --
+   Copyright (C)  2005  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 gnu.javax.imageio.bmp;
+
+import java.io.IOException;
+import javax.imageio.*;
+import javax.imageio.spi.*;
+import javax.imageio.metadata.*;
+import javax.imageio.stream.ImageInputStream;
+import java.util.Iterator;
+import java.awt.image.BufferedImage;
+
+public class BMPImageReader extends ImageReader {
+    private BMPInfoHeader infoHeader;
+    private BMPFileHeader fileHeader;
+    private BMPDecoder decoder;
+
+    protected BMPImageReader(ImageReaderSpi originatingProvider){
+	super(originatingProvider);
+	infoHeader = null;
+	fileHeader = null;
+	decoder = null;
+    }
+
+    private void validateIndex(int imageIndex) 
+	throws IndexOutOfBoundsException {
+	if (imageIndex != 0) 
+	    throw new IndexOutOfBoundsException("Invalid image index.");
+    }
+
+    public void setInput(Object input) {
+	super.setInput(input);
+    }
+
+    public void setInput(Object input, 
+			 boolean seekForwardOnly, 
+			 boolean ignoreMetadata) {
+	super.setInput(input, seekForwardOnly, ignoreMetadata);
+    }
+	
+    public void setInput(Object input, boolean isStreamable) {
+	super.setInput(input, isStreamable);
+	
+	if (!(input instanceof ImageInputStream))
+	    throw new IllegalArgumentException("Input not an ImageInputStream.");
+    }
+
+    private void checkStream() throws IOException {
+	if (!(input instanceof ImageInputStream)) 
+	    throw new IllegalStateException("Input not an ImageInputStream.");
+	if(input == null)
+	    throw new IllegalStateException("No input stream.");
+
+    }
+
+    private void readHeaders() throws IOException, IIOException {
+	if(fileHeader != null)
+	    return;
+
+	checkStream();
+
+	fileHeader = new BMPFileHeader((ImageInputStream)input);
+	infoHeader = new BMPInfoHeader((ImageInputStream)input);
+	decoder = BMPDecoder.getDecoder(fileHeader, infoHeader);
+    }
+    
+    public int getWidth(int imageIndex) throws IOException {
+	validateIndex(imageIndex);
+	readHeaders();
+	return infoHeader.getWidth();
+    }
+
+    public int getHeight(int imageIndex) throws IOException {
+	validateIndex(imageIndex);
+	readHeaders();
+	return infoHeader.getHeight();
+    }
+
+    public Iterator getImageTypes(int imageIndex){
+	validateIndex(imageIndex);
+	return null;
+    }
+
+    /**
+     * Returns the number of images. BMP files can only contain a single one.
+     */
+    public int getNumImages(boolean allowSearch){
+	return 1;
+    }
+
+
+    // FIXME: Support metadata
+    public IIOMetadata getImageMetadata(int imageIndex){
+	validateIndex(imageIndex);
+	return null;
+    }
+
+    // FIXME: Support metadata
+    public IIOMetadata getStreamMetadata(){
+	return null;
+    }
+
+    /**
+     * Reads the image indexed by imageIndex and returns it as 
+     * a complete BufferedImage, using a supplied ImageReadParam.
+    */	      
+    public BufferedImage read(int imageIndex, ImageReadParam param) 
+	throws IOException, IIOException {
+	validateIndex(imageIndex);
+	readHeaders();
+	return decoder.decode((ImageInputStream)input);
+    }
+    
+
+}
+
+
+