/**************************************************************
 * 
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/

package embeddedobj.test;

import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.net.*;
import java.io.*;

import com.sun.star.awt.XBitmap;
import com.sun.star.awt.XWindow;
import com.sun.star.awt.XWindowPeer;
import com.sun.star.awt.XToolkit;
import com.sun.star.awt.XSystemChildFactory;
import com.sun.star.awt.WindowDescriptor;
import com.sun.star.awt.WindowClass;
import com.sun.star.awt.WindowAttribute;
import com.sun.star.awt.VclWindowPeerAttribute;

import com.sun.star.uno.UnoRuntime;
import com.sun.star.uno.AnyConverter;
import com.sun.star.uno.Any;

import com.sun.star.lang.XMultiServiceFactory;
import com.sun.star.lang.XSingleServiceFactory;

class WindowHelper {

	public static XWindow createWindow( XMultiServiceFactory xFactory, NativeView aParent, java.awt.Rectangle aBounds )
	{
		XWindow	 xWindow = null;
		XToolkit	xToolkit = null;

		// get access to toolkit of remote office to create the container window of new target frame
		try{
			xToolkit = (XToolkit)UnoRuntime.queryInterface( XToolkit.class,
															xFactory.createInstance("com.sun.star.awt.Toolkit") );
		}
		catch( Exception ex )
		{
			return null;
		}

		XSystemChildFactory xChildFactory = (XSystemChildFactory)UnoRuntime.queryInterface(
				XSystemChildFactory.class,
				xToolkit);

		try
		{
			XWindowPeer xPeer = null;
			Integer nHandle = aParent.getHWND();
			short   nSystem = (short)aParent.getNativeWindowSystemType();
			byte[]  lProcID = new byte[0];
/*
			try {
				xPeer = xChildFactory.createSystemChild((Object)nHandle, lProcID, nSystem);
			}
			catch( Exception e )
			{}
*/
			if (xPeer==null)
			{
				JavaWindowPeerFake aWrapper = new JavaWindowPeerFake(aParent);

				XWindowPeer xParentPeer = (XWindowPeer)UnoRuntime.queryInterface(
						XWindowPeer.class,
						aWrapper);

				WindowDescriptor aDescriptor = new WindowDescriptor();
				aDescriptor.Type = WindowClass.TOP;
				aDescriptor.WindowServiceName = "workwindow";
				aDescriptor.ParentIndex = 1;
				aDescriptor.Parent = xParentPeer;
				aDescriptor.Bounds = new com.sun.star.awt.Rectangle( (int)aBounds.getX(),
																	 (int)aBounds.getY(), 
																	 (int)aBounds.getWidth(),
																	 (int)aBounds.getHeight() );

				System.out.println( "The rectangle for vcl window is:\nx = " + (int)aBounds.getX()
																+ "; y = " + (int)aBounds.getY()
																+ "; width = " + (int)aBounds.getWidth()
																+ "; height = " + (int)aBounds.getHeight() );

				if (nSystem == com.sun.star.lang.SystemDependent.SYSTEM_WIN32)
					aDescriptor.WindowAttributes = WindowAttribute.SHOW;
				else
					aDescriptor.WindowAttributes = WindowAttribute.SYSTEMDEPENDENT;

				aDescriptor.WindowAttributes |= VclWindowPeerAttribute.CLIPCHILDREN;

				xPeer = xToolkit.createWindow( aDescriptor );
			}

			xWindow = (XWindow)UnoRuntime.queryInterface( XWindow.class, xPeer);
			if ( xWindow != null )
				xWindow.setPosSize( (int)aBounds.getX(),
									(int)aBounds.getY(), 
									(int)aBounds.getWidth(),
									(int)aBounds.getHeight(),
									com.sun.star.awt.PosSize.POSSIZE );
		}
		catch( Exception ex1 )
		{
			System.out.println( "Exception on VCL window creation: " + ex1 );
			xWindow = null;
		}

		return xWindow;
	}

	public static XBitmap getVCLBitmapFromBytes( XMultiServiceFactory xFactory, Object aAny )
	{
		if ( !AnyConverter.isArray( aAny ) )
			throw new com.sun.star.uno.RuntimeException();
		
		Object[] aArgs = new Object[1];
		aArgs[0] = aAny;
		XBitmap xResult = null;

		try {
			XSingleServiceFactory xBitmapFactory = (XSingleServiceFactory)UnoRuntime.queryInterface(
					XSingleServiceFactory.class,
					xFactory.createInstance( "com.sun.star.embed.BitmapCreator" ) );

			xResult = (XBitmap)UnoRuntime.queryInterface(
					XBitmap.class,
					xBitmapFactory.createInstanceWithArguments( aArgs ) );
		}
		catch( Exception e )
		{
			System.out.println( "Could not create VCL bitmap based on sequence," );
			System.out.println( "exception: " + e );
		}

		return xResult;	
	}
};