X

import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.eclipse.swt.widgets.ProgressBar;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.widgets.Monitor;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.graphics.Image;

public class SWTHelloWorld {

    private Shell shell;
    private Text txtConsole;

    public SWTHelloWorld (Display display) {
        shell = new Shell(display, SWT.TITLE | SWT.CLOSE | SWT.RESIZE);

        initShell();
        addIcon();
        addLabelInfo();
        addProgressBar();
        addLabelStatus();
        addTextboxConsole();
        addSeparator();
        addCheckBox();
        addButtonClear();

        shell.pack();
        shell.open ();
        while (!shell.isDisposed ()) {
           if (!display.readAndDispatch ()) display.sleep ();
        }
        display.dispose ();
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void initShell() {

        shell.setText("Operation In Progress");
        //shell.setSize(515, 600);

        Image small = new Image(shell.getDisplay(), "Vuze.ico");

        GridLayout formGrid = new GridLayout(4, false);
        formGrid.horizontalSpacing = 4;
        formGrid.verticalSpacing = 4;
        formGrid.marginBottom = 5;
        formGrid.marginTop = 20;
        shell.setLayout(formGrid);

        shell.setImage(small);

        Rectangle bounds = shell.getDisplay().getPrimaryMonitor().getBounds();
        Rectangle rect = shell.getBounds();
        int x = bounds.x + (bounds.width - rect.width) / 2;
        int y = bounds.y + (bounds.height - rect.height) / 2;

        shell.setLocation(x, y);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addIcon() {
        Button button3 = new Button(shell, SWT.PUSH);
        GridData gridData = new GridData();
        gridData.widthHint = 32;
        gridData.heightHint = 32;
        gridData.verticalSpan = 4;
        gridData.horizontalIndent = 25;
        gridData.verticalAlignment = SWT.TOP;
        button3.setLayoutData(gridData);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addProgressBar() {
        ProgressBar barProgress = new ProgressBar (shell, SWT.INDETERMINATE);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 3;
        gridData.horizontalAlignment = GridData.FILL;
        gridData.widthHint = 385;
        gridData.grabExcessHorizontalSpace = true;
        barProgress.setLayoutData(gridData);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addLabelInfo() {
        Label lblInfo = new Label(shell, SWT.LEFT);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 3;
        gridData.horizontalAlignment = GridData.FILL;
        lblInfo.setText("Greetings from SWT");
        lblInfo.setLayoutData(gridData);
        lblInfo.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addLabelStatus() {
        Label lblStatus = new Label(shell, SWT.LEFT);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 3;
        gridData.horizontalAlignment = GridData.FILL;
        lblStatus.setText("Something");
        lblStatus.setLayoutData(gridData);
        lblStatus.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLUE));
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addTextboxConsole() {
        txtConsole = new Text(shell, SWT.MULTI | SWT.BORDER | SWT.WRAP | SWT.V_SCROLL);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 3;
        gridData.horizontalAlignment = SWT.FILL;
        gridData.verticalAlignment =  SWT.FILL;
        gridData.heightHint = 480;
        gridData.grabExcessHorizontalSpace = true;
        gridData.grabExcessVerticalSpace = true;
        gridData.exclude = true;
        txtConsole.setLayoutData(gridData);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addSeparator() {
        Label rulSeparator = new Label(shell, SWT.SEPARATOR | SWT.SHADOW_OUT | SWT.HORIZONTAL);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 4;
        gridData.horizontalAlignment = SWT.FILL;
        gridData.verticalAlignment = SWT.END;
        gridData.verticalIndent = 5;
        gridData.grabExcessVerticalSpace = true;
        rulSeparator.setLayoutData(gridData);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addCheckBox() {
        final Button chkDetails = new Button(shell, SWT.CHECK);
        chkDetails.setText("Show Console");
        GridData gridData = new GridData();
        gridData.horizontalSpan = 2;
        gridData.horizontalAlignment = SWT.LEFT;
        gridData.verticalAlignment = SWT.END;
        chkDetails.setLayoutData(gridData);

        chkDetails.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event event) {
                if (chkDetails.getSelection()) {
                    GridData data = (GridData) txtConsole.getLayoutData();
                    data.exclude = false;
                    txtConsole.setVisible(!data.exclude);
                    shell.layout(false);
                    //shell.setSize(515, 800);
                }
                else {
                    GridData data = (GridData) txtConsole.getLayoutData();
                    data.exclude = true;
                    txtConsole.setVisible(!data.exclude);
                    shell.layout(false);
                    //shell.setSize(515, 200);
                }
            }
        });
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    private void addButtonClear() {
        Button btnClear = new Button(shell, SWT.PUSH);
        GridData gridData = new GridData();
        gridData.horizontalSpan = 2;
        gridData.widthHint = 130;
        gridData.horizontalAlignment = SWT.RIGHT;
        gridData.verticalAlignment = SWT.END;
        btnClear.setText("Cancel");
        btnClear.setLayoutData(gridData);
    }

   /**
    * Validates a chess move.
    *
    * @return
    */
    public static void main(String[] args) {
        Display display = new Display();
        SWTHelloWorld x = new SWTHelloWorld(display);
        display.dispose();
    }

}