/*
 * Copyright (c) 2006 Manuel Traut and Volker Dahnke
 * 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: Manuel Traut and Volker Dahnke
 */

package YalpClients.SwtClient.GUI;

import YalpClients.SwtClient.Model;
import YalpInterfaces.AccessRights;

import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.layout.*;
import org.eclipse.swt.widgets.*;

/*
 * Class StartDialog
 *
 * <em></em>
 *
 * @author Volker Dahnke / Manuel Traut
 *
 * @version 1 02-04-2006<br>
 */
public class StartDialog extends Composite {

	{
		//Register as a resource user - SWTResourceManager will
		//handle the obtaining and disposing of resources
		SWTResourceManager.registerResourceUser(this);
	}
	private Display display;
	private CLabel cLabel1;
	private CLabel LogoLabel;
	private Model model;
	private Composite parent;
	private Composite composite;
	private CLabel logonLable;
	private Button ok;
	private Text passwd;
	private Text username;
	private CLabel passwdLable;
	private CLabel usernameLable;
	
	
	public StartDialog(Composite parent,Model model, int style) {
		super(parent, style);
		
		this.parent=parent;
        this.model=model;
        this.display=Display.getDefault();
		initStartDialog();
	}
	
	private void initStartDialog(){
		GridLayout thisLayout = new GridLayout();
		thisLayout.makeColumnsEqualWidth = true;
		this.setLayout(thisLayout);
		this.setSize(300,150);
		Listener listener =new Listener() {
			public void handleEvent(org.eclipse.swt.widgets.Event evt) {
				if (evt.character==SWT.CR){
					OkPressed();
				}
			}
		};
		addListener(SWT.KeyDown,listener);
		{
			composite = new Composite(this, SWT.NONE);
			FormLayout compositeLayout = new FormLayout();
			composite.setLayout(compositeLayout);
			GridData compositeLData = new GridData();
			compositeLData.widthHint = 287;
			compositeLData.heightHint = 140;
			composite.setLayoutData(compositeLData);
			composite.setVisible(true);
			composite.addKeyListener(new KeyAdapter() {
				public void keyPressed(KeyEvent evt) {
					if (evt.character==SWT.CR){
						OkPressed();
					}
				}
			});
			{
				cLabel1 = new CLabel(composite, SWT.NONE);
				FormData cLabel1LData = new FormData();
				cLabel1LData.width = 120;
				cLabel1LData.height = 20;
				cLabel1LData.left =  new FormAttachment(0, 1000, 93);
				cLabel1LData.top =  new FormAttachment(0, 1000, 40);
				cLabel1.setLayoutData(cLabel1LData);
				Color col =display.getSystemColor(SWT.COLOR_RED);
				cLabel1.setForeground(col);
				cLabel1.setFont(SWTResourceManager.getFont("Times", 10, 1, false, false));
			}
			{
				LogoLabel = new CLabel(composite, SWT.NONE);
				FormData LogoLabelLData = new FormData();
				LogoLabelLData.width = 70;
				LogoLabelLData.height = 42;
				LogoLabelLData.left =  new FormAttachment(0, 1000, 77);
				LogoLabelLData.top =  new FormAttachment(0, 1000, 0);
				LogoLabelLData.right =  new FormAttachment(1000, 1000, -140);
				LogoLabelLData.bottom =  new FormAttachment(1000, 1000, -98);
				LogoLabel.setLayoutData(LogoLabelLData);
				LogoLabel.setImage(new Image(this.getDisplay(),"img/yalpV2_mittel.gif"));
			}
			{
				logonLable = new CLabel(composite, SWT.BEGINNING);
				logonLable.setText("Login");
				FormData logonLableLData = new FormData();
				logonLableLData.width = 70;
				logonLableLData.height = 28;
				logonLableLData.left =  new FormAttachment(0, 1000, 147);
				logonLableLData.top =  new FormAttachment(0, 1000, 5);
				logonLable.setLayoutData(logonLableLData);
				logonLable.setFont(SWTResourceManager.getFont("Times", 14, 1, false, false));
			}
			{
				username = new Text(composite, SWT.NONE);
				FormData usernameLData = new FormData();
				usernameLData.width = 117;
				usernameLData.height = 15;
				usernameLData.left =  new FormAttachment(0, 1000, 120);
				usernameLData.top =  new FormAttachment(0, 1000, 65);
				username.setLayoutData(usernameLData);
				username.setFocus();
				username.addKeyListener(new KeyAdapter() {
					public void keyPressed(KeyEvent evt) {
						if (evt.character==SWT.CR){
							OkPressed();
						}
					}
				});
			}
			{
				passwd = new Text(composite, SWT.PASSWORD);
				FormData passwdLData = new FormData();
				passwdLData.width = 117;
				passwdLData.height = 15;
				passwdLData.left =  new FormAttachment(0, 1000, 120);
				passwdLData.top =  new FormAttachment(0, 1000, 88);
				passwd.setLayoutData(passwdLData);
				passwd.addKeyListener(new KeyAdapter() {
					public void keyPressed(KeyEvent evt) {
						if (evt.character==SWT.CR){
							OkPressed();
						}
					}
				});
			}
			{
				ok = new Button(composite, SWT.PUSH | SWT.CENTER);
				ok.setText("OK");
				FormData okLData = new FormData();
				okLData.width = 65;
				okLData.height = 21;
				okLData.left =  new FormAttachment(0, 1000, 110);
				okLData.top =  new FormAttachment(0, 1000, 115);
				ok.setLayoutData(okLData);
				ok.setFont(SWTResourceManager.getFont("Times", 10, 1, false, false));
				ok.addSelectionListener(new SelectionAdapter() {
					public void widgetSelected(SelectionEvent evt) {
						OkPressed();
					}
				});
			}
			{
				passwdLable = new CLabel(composite, SWT.NONE);
				passwdLable.setText("Password:");
				FormData passwdLableLData = new FormData();
				passwdLableLData.width = 70;
				passwdLableLData.height = 20;
				passwdLableLData.left =  new FormAttachment(0, 1000, 35);
				passwdLableLData.top =  new FormAttachment(0, 1000, 83);
				passwdLable.setLayoutData(passwdLableLData);
				passwdLable.setFont(SWTResourceManager.getFont("Times", 10, 0, false, false));
			}
			{
				usernameLable = new CLabel(composite, SWT.NONE);
				usernameLable.setText("Username:");
				FormData usernameLableLData = new FormData();
				usernameLableLData.width = 70;
				usernameLableLData.height = 20;
				usernameLableLData.left =  new FormAttachment(0, 1000, 35);
				usernameLableLData.top =  new FormAttachment(0, 1000, 60);
				usernameLable.setLayoutData(usernameLableLData);
				usernameLable.setFont(SWTResourceManager.getFont("Times", 10, 0, false, false));
			}
		}
		this.layout();

	}
	private void OkPressed(){
		AccessRights kind;
		kind = model.userVerify(username.getText(), passwd.getText());

		if (kind.value() == AccessRights._NO_YALP_SERVER ) {
			cLabel1.setText("Server offline");
		} else if (kind.value() == AccessRights._DENY ){
			cLabel1.setText("Access Denied");
			username.setText("");
			passwd.setText("");
			username.setFocus();
		} else {
			display.close();
			InitGUI gui = new InitGUI(model, kind);
		}

	}
	
	public void show(){
		((Shell)this.parent).setImage(new Image(display,"img/yalpV2_klein.gif"));
		((Shell)this.parent).setText("yalp");
		Point size = this.getSize();
		java.awt.Dimension screen = java.awt.Toolkit.getDefaultToolkit().getScreenSize();
		Rectangle shellBounds = this.parent.computeTrim((screen.width-size.x)/2,(screen.height-size.y)/2,size.x,size.y);
        this.parent.setLayout(new FillLayout());
        this.parent.layout();
        this.parent.setBounds(shellBounds);
        ((Shell)this.parent).open();
        while (!this.parent.isDisposed()) {
            if (!display.readAndDispatch())
            	display.sleep();
        }
	}
	

}