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.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class InputBox extends Dialog {
private Shell shell;
private Label label;

private String message;
private String result;

public InputBox(Shell parent, int style) {
super(parent, checkStyle(style));

shell = new Shell(parent, SWT.DIALOG_TRIM | checkStyle(style));
shell.setText(getText());
shell.setLayout(new GridLayout(2, false));

new Label(shell, SWT.CENTER).setImage(shell.getDisplay().getSystemImage(checkImageStyle(style)));

Composite body = new Composite(shell, SWT.NONE);

GridData data0 = new GridData();
data0.grabExcessHorizontalSpace = true;
data0.grabExcessVerticalSpace = true;
data0.horizontalAlignment = SWT.FILL;
data0.verticalAlignment = SWT.FILL;
body.setLayoutData(data0);

body.setLayout(new GridLayout());

label = new Label(body, SWT.LEFT);

GridData data1 = new GridData();
data1.grabExcessHorizontalSpace = true;
data1.grabExcessVerticalSpace = true;
data1.horizontalAlignment = SWT.FILL;
data1.verticalAlignment = SWT.FILL;
label.setLayoutData(data1);

final Text text = new Text(body, SWT.SINGLE | SWT.BORDER);

GridData data2 = new GridData();
data2.grabExcessHorizontalSpace = true;
data2.horizontalAlignment = SWT.FILL;
text.setLayoutData(data2);

Composite footer = new Composite(shell, SWT.NONE);

GridData data3 = new GridData();
data3.grabExcessHorizontalSpace = true;
data3.horizontalAlignment = SWT.FILL;
data3.horizontalSpan = 2;
footer.setLayoutData(data3);

RowLayout layout = new RowLayout();
layout.justify = true;
layout.fill = true;
footer.setLayout(layout);

Button cancel = new Button(footer, SWT.PUSH);
cancel.setText("  Cancel  ");
cancel.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
shell.dispose();
}
});

Button ok = new Button(footer, SWT.PUSH);
ok.setText("    OK    ");
ok.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
result = text.getText();

shell.dispose();
}
});
shell.setDefaultButton(ok);
}

protected static int checkStyle(int style) {
if ((style & SWT.SYSTEM_MODAL) == SWT.SYSTEM_MODAL) {
return SWT.SYSTEM_MODAL;
} else if ((style & SWT.PRIMARY_MODAL) == SWT.PRIMARY_MODAL) {
return SWT.PRIMARY_MODAL;
} else if ((style & SWT.APPLICATION_MODAL) == SWT.APPLICATION_MODAL) {
return SWT.APPLICATION_MODAL;
}

return SWT.APPLICATION_MODAL;
}

protected static int checkImageStyle(int style) {
if ((style & SWT.ICON_ERROR) == SWT.ICON_ERROR) {
return SWT.ICON_ERROR;
} else if ((style & SWT.ICON_INFORMATION) == SWT.ICON_INFORMATION) {
return SWT.ICON_INFORMATION;
} else if ((style & SWT.ICON_QUESTION) == SWT.ICON_QUESTION) {
return SWT.ICON_QUESTION;
} else if ((style & SWT.ICON_WARNING) == SWT.ICON_WARNING) {
return SWT.ICON_WARNING;
} else if ((style & SWT.ICON_WORKING) == SWT.ICON_WORKING) {
return SWT.ICON_WORKING;
}

return SWT.NONE;
}

@Override
public void setText(String string) {
super.setText(string);

shell.setText(string);
}

public String getMessage() {
return message;
}

public void setMessage(String message) {
if (message == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);

this.message = message;
label.setText(message);
}

public String open() {
shell.pack();
shell.open();
shell.layout();

while (!shell.isDisposed())
if (!shell.getDisplay().readAndDispatch()) shell.getDisplay().sleep();

return result;
}
}

/*
************************************
* Copyright 2005 Completely Random Solutions *
*                                *
* DISCLAMER:                                 *
* We are not responsible for any damage      *
* directly or indirectly caused by the usage *
* of this or any other class in association  *
* with this class.  Use at your own risk.   *
* This or any other class by CRS is not *
* certified for use in life support systems, by *
* Lockheed Martin engineers, in development *
* or use of nuclear reactors, weapons of mass    *
* destruction, or in inter-planetary conflict. *
* (Unless otherwise specified)               *
************************************
*/