Create your own dialog classes which allows users to input a String : Dialog « SWT « Java Tutorial

1. Java Tutorial
2. SWT
3. Dialog

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

class InputDialog extends Dialog {
  private String message;

  private String input;

  public InputDialog(Shell parent) {
    this(parent, SWT.DIALOG_TRIM | SWT.APPLICATION_MODAL);
  }

  public InputDialog(Shell parent, int style) {
    super(parent, style);
    setText("Input Dialog");
    setMessage("Please enter a value:");
  }

  public String getMessage() {
    return message;
  }

  public void setMessage(String message) {
    this.message = message;
  }

  public String getInput() {
    return input;
  }

  public void setInput(String input) {
    this.input = input;
  }

  public String open() {
    Shell shell = new Shell(getParent(), getStyle());
    shell.setText(getText());
    createContents(shell);
    shell.pack();
    shell.open();
    Display display = getParent().getDisplay();
    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    return input;
  }

  private void createContents(final Shell shell) {
    shell.setLayout(new GridLayout(2, true));

    Label label = new Label(shell, SWT.NONE);
    label.setText(message);
    GridData data = new GridData();
    data.horizontalSpan = 2;
    label.setLayoutData(data);

    final Text text = new Text(shell, SWT.BORDER);
    data = new GridData(GridData.FILL_HORIZONTAL);
    data.horizontalSpan = 2;
    text.setLayoutData(data);

    Button ok = new Button(shell, SWT.PUSH);
    ok.setText("OK");
    data = new GridData(GridData.FILL_HORIZONTAL);
    ok.setLayoutData(data);
    ok.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        input = text.getText();
        shell.close();
      }
    });

    Button cancel = new Button(shell, SWT.PUSH);
    cancel.setText("Cancel");
    data = new GridData(GridData.FILL_HORIZONTAL);
    cancel.setLayoutData(data);
    cancel.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent event) {
        input = null;
        shell.close();
      }
    });

    shell.setDefaultButton(ok);
  }
}

public class CustomInputDialog {
  public static void main(String[] args) {
    Display display = new Display();
    Shell shell = new Shell(display);

    InputDialog dlg = new InputDialog(shell);
    String input = dlg.open();
    if (input != null) {
      // User clicked OK; set the text into the label
      System.out.println(input);
    }

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

17.109.Dialog
	17.109.1.	Using the Dialogs
	17.109.2.	Create a dialog shell
	17.109.3.	Create a dialog shell and position it
	17.109.4.	Create a dialog shell (prompt for a value)
	17.109.5.	Creating Your Own Dialogs
	17.109.6.	Create your own dialog classes which allows users to input a String
	17.109.7.	Prevent escape from closing a dialog
	17.109.8.	Display an Empty Dialog