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/*******************************************************************************
* Copyright (c) 2000, 2004 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Common Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/cpl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.swt.internal;
public class Library {
/* SWT Version - Mmmm (M=major, mmm=minor) */
/**
* SWT Major version number (must be >= 0)
*/
static int MAJOR_VERSION = 3;
/**
* SWT Minor version number (must be in the range 0..999)
*/
static int MINOR_VERSION = 62;
/**
* SWT revision number (must be >= 0)
*/
static int REVISION = 0;
/**
* Returns the SWT version as an integer in the standard format
* <em>Mmmm</em> where <em>M</em> is the major version number
* and <em>mmm</em> is the minor version number.
*
* @return the version of the currently running SWT
*/
public static int getVersion () {
return MAJOR_VERSION * 1000 + MINOR_VERSION;
}
/**
* Returns the SWT platform name.
*
* @return the platform name of the currently running SWT
*/
public static String getPlatform () {
return Platform.PLATFORM;
}
/**
* Returns the SWT revision number as an integer. Revision changes
* occur as a result of non-API breaking bug fixes.
*
* @return the revision number of the currently running SWT
*/
public static int getRevision () {
return REVISION;
}
/**
* Loads the shared library that matches the version of the
* Java code which is currently running. SWT shared libraries
* follow an encoding scheme where the major, minor and revision
* numbers are embedded in the library name and this along with
* <code>name</code> is used to load the library. If this fails,
* <code>name</code> is used in another attempt to load the library,
* this time ignoring the SWT version encoding scheme.
*
* @param name the name of the library to load
*/
public static void loadLibrary (String name) {
/*
* Include platform name to support different windowing systems
* on same operating system.
*/
String platform = Platform.PLATFORM;
/*
* Get version qualifier.
*/
String version = System.getProperty ("swt.version"); //$NON-NLS-1$
if (version == null) {
version = "" + MAJOR_VERSION; //$NON-NLS-1$
/* Force 3 digits in minor version number */
if (MINOR_VERSION < 10) {
version += "00"; //$NON-NLS-1$
} else {
if (MINOR_VERSION < 100) version += "0"; //$NON-NLS-1$
}
version += MINOR_VERSION;
/* No "r" until first revision */
if (REVISION > 0) version += "r" + REVISION; //$NON-NLS-1$
}
try {
String newName = name + "-" + platform + "-" + version; //$NON-NLS-1$ //$NON-NLS-2$
System.loadLibrary (newName);
return;
} catch (UnsatisfiedLinkError e1) {
try {
String newName = name + "-" + platform; //$NON-NLS-1$
System.loadLibrary (newName);
return;
} catch (UnsatisfiedLinkError e2) {
throw e1;
}
}
}
}
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