/*******************************************************************************
* Copyright (c) 2010 György Orosz.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* György Orosz - initial API and implementation
******************************************************************************/
package org.erlide.wrangler.refactoring.ui;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
import org.erlide.wrangler.refactoring.ui.validator.IValidator;
import org.erlide.wrangler.refactoring.ui.validator.VariableNameValidator;
/**
* Input dialog which accpets a single input data.
*
* @author Gyorgy Orosz
* @version %I%, %G%
*/
public class NewParameterNameInputDialog extends AbstractInputDialog {
private Text newParameterName;
private String data;
/**
* Constructor
*
* @param parentShell
* shell
* @param title
* dialog title
*/
public NewParameterNameInputDialog(final Shell parentShell, final String title) {
super(parentShell, title);
}
/**
* Get input data
*
* @return input string
*/
public String getData() {
return data;
}
@Override
protected Control createDialogArea(final Composite parent) {
final Composite composite = (Composite) super.createDialogArea(parent);
final Label newParameterNameLabel = new Label(composite, SWT.WRAP);
newParameterNameLabel.setText("New parameter name:");
final GridData minToksData = new GridData(GridData.GRAB_HORIZONTAL
| GridData.GRAB_VERTICAL | GridData.HORIZONTAL_ALIGN_FILL
| GridData.VERTICAL_ALIGN_CENTER);
minToksData.widthHint = convertHorizontalDLUsToPixels(IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH);
newParameterNameLabel.setLayoutData(minToksData);
newParameterNameLabel.setFont(parent.getFont());
newParameterName = new Text(composite, getInputTextStyle());
newParameterName.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
| GridData.HORIZONTAL_ALIGN_FILL));
newParameterName.addModifyListener(new ModifyListener() {
@Override
public void modifyText(final ModifyEvent e) {
data = newParameterName.getText();
validateInput();
}
});
errorMessageText = new Text(composite, SWT.READ_ONLY | SWT.WRAP);
errorMessageText.setLayoutData(new GridData(GridData.GRAB_HORIZONTAL
| GridData.HORIZONTAL_ALIGN_FILL));
errorMessageText.setBackground(errorMessageText.getDisplay().getSystemColor(
SWT.COLOR_WIDGET_BACKGROUND));
setErrorMessage("New parameter name must be a valid variable name!");
newParameterName.setText("");
return composite;
}
@Override
protected void validateInput() {
final IValidator v = new VariableNameValidator();
if (!v.isValid(newParameterName.getText())) {
setErrorMessage("New parameter name must be a valid variable name!");
} else {
setErrorMessage(null);
}
}
}