comobject.java

源码为Eclipse开源开发平台桌面开发工具SWT的源代码,

/*******************************************************************************
 * Copyright (c) 2000, 2003 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.ole.win32;

import java.util.Hashtable;
import org.eclipse.swt.internal.*;
import org.eclipse.swt.internal.win32.*;


public class COMObject {

	private int ppVtable;
	
	static private final int MAX_ARG_COUNT = 12;
	static private final int MAX_VTABLE_LENGTH = 80;
	static private Callback[][] Callbacks = new Callback[MAX_VTABLE_LENGTH][MAX_ARG_COUNT];
	static private Hashtable ObjectMap = new Hashtable();
	
public COMObject(int[] argCounts) {
	int[] callbackAddresses = new int[argCounts.length];
	for (int i = 0, length = argCounts.length; i < length; i++){
		if ((Callbacks[i][argCounts[i]]) == null) {
			Callbacks[i][argCounts[i]] = new Callback(this.getClass(), "callback"+i, argCounts[i] + 1, true); //$NON-NLS-1$
		}
		callbackAddresses[i] = Callbacks[i][argCounts[i]].getAddress();
	}

	int pVtable = OS.GlobalAlloc(COM.GMEM_FIXED | COM.GMEM_ZEROINIT, 4 * argCounts.length);
	COM.MoveMemory(pVtable, callbackAddresses, 4 * argCounts.length);
	ppVtable = OS.GlobalAlloc(COM.GMEM_FIXED | COM.GMEM_ZEROINIT, 4);
	COM.MoveMemory(ppVtable, new int[] {pVtable}, 4);
	ObjectMap.put(new Integer(ppVtable), this);
}

public static GUID IIDFromString(String lpsz) {
	// create a null terminated array of char
	char[] buffer = (lpsz +"\0").toCharArray();

	// invoke system method
	GUID lpiid = new GUID();
	if (COM.IIDFromString(buffer, lpiid) == COM.S_OK)
		return lpiid;
	return null;
}

static int callback0(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method0(args);
}
static int callback1(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method1(args);
}
static int callback2(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method2(args);
}
static int callback3(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method3(args);
}
static int callback4(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method4(args);
}
static int callback5(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method5(args);
}
static int callback6(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method6(args);
}
static int callback7(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method7(args);
}
static int callback8(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method8(args);
}
static int callback9(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method9(args);
}
static int callback10(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method10(args);
}
static int callback11(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method11(args);
}
static int callback12(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method12(args);
}
static int callback13(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method13(args);
}
static int callback14(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method14(args);
}
static int callback15(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method15(args);
}
static int callback16(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method16(args);
}
static int callback17(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method17(args);
}
static int callback18(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method18(args);
}
static int callback19(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method19(args);
}
static int callback20(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method20(args);
}
static int callback21(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method21(args);
}
static int callback22(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method22(args);
}
static int callback23(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method23(args);
}
static int callback24(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method24(args);
}
static int callback25(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method25(args);
}
static int callback26(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method26(args);
}
static int callback27(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method27(args);
}
static int callback28(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method28(args);
}
static int callback29(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method29(args);
}
static int callback30(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method30(args);
}
static int callback31(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];
	Object object = ObjectMap.get(new Integer(address));
	if (object == null) return COM.E_FAIL;
	int[] args = new int[callbackArgs.length - 1];
	System.arraycopy(callbackArgs, 1, args, 0, args.length);
	return ((COMObject) object).method31(args);
}
static int callback32(int[] callbackArgs) {
	// find the object on which this call was invoked
	int address = callbackArgs[0];