org.eclipse.swt.internal.image.JPEGSegment Maven / Gradle / Ivy

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The osx x86_64 swt jar as available in the Eclipse 4.6 (Neon) release for OSX. It is suitable for use with jface and other dependencies available from maven central in the org.eclipse.scout.sdk.deps group. The sources is copied from swt-4.6-cocoa-macosx-x86_64.zip from http://download.eclipse.org/eclipse/downloads/drops4/R-4.6-201606061100/ and javadoc is generated from sources.

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/*******************************************************************************
 * Copyright (c) 2000, 2011 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.swt.internal.image;


class JPEGSegment {
	public byte[] reference;

	JPEGSegment() {
	}

	public JPEGSegment(byte[] reference) {
		this.reference = reference;
	}

	public int signature() {
		return 0;
	}

	public boolean verify() {
		return getSegmentMarker() == signature();
	}

	public int getSegmentMarker() {
		return ((reference[0] & 0xFF) << 8 | (reference[1] & 0xFF));
	}

	public void setSegmentMarker(int marker) {
		reference[0] = (byte)((marker & 0xFF00) >> 8);
		reference[1] = (byte)(marker & 0xFF);
	}

	public int getSegmentLength() {
		return ((reference[2] & 0xFF) << 8 | (reference[3] & 0xFF));
	}

	public void setSegmentLength(int length) {
		reference[2] = (byte)((length & 0xFF00) >> 8);
		reference[3] = (byte)(length & 0xFF);
	}

	public boolean writeToStream(LEDataOutputStream byteStream) {
		try {
			byteStream.write(reference);
			return true;
		} catch (Exception e) {
			return false;
		}
	}
}