/*******************************************************************************
 * Copyright (c) 2000, 2017 IBM Corporation and others.
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0.
 * 
 * SPDX-License-Identifier: EPL-2.0
 *
 *******************************************************************************/
package org.eclipse.dltk.internal.ui.refactoring;

import org.eclipse.dltk.internal.corext.refactoring.tagging.IQualifiedNameUpdating;
import org.eclipse.jface.dialogs.IDialogSettings;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Text;


public class QualifiedNameComponent extends Composite {

	private static final String PATTERNS= "patterns"; //$NON-NLS-1$
	private Text fPatterns;

	public QualifiedNameComponent(Composite parent, int style, final IQualifiedNameUpdating refactoring, IDialogSettings settings) {
		super(parent, style);
		GridLayout layout= new GridLayout();
		layout.marginWidth=0; layout.marginHeight= 0;
		layout.numColumns= 2;
		setLayout(layout);
		Label label= new Label(this, SWT.NONE);
		label.setText(RefactoringMessages.QualifiedNameComponent_patterns_label);
		fPatterns= new Text(this, SWT.BORDER);
		fPatterns.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		label= new Label(this, SWT.NONE);
		label.setText(RefactoringMessages.QualifiedNameComponent_patterns_description);
		GridData gd= new GridData(GridData.FILL_HORIZONTAL);
		gd.horizontalSpan=2;
		label.setLayoutData(gd);
		String text= refactoring.getFilePatterns();
		if (text == null)
			text= settings.get(PATTERNS);
		if (text != null) {
			fPatterns.setText(text);
			refactoring.setFilePatterns(text);
		}
		fPatterns.addModifyListener(e -> refactoring.setFilePatterns(fPatterns.getText()));
	}

	@Override
	public void setEnabled(boolean enabled) {
		super.setEnabled(enabled);
		Control[] children= getChildren();
		for (int i= 0; i < children.length; i++) {
			children[i].setEnabled(enabled);
		}
	}

	public void savePatterns(IDialogSettings settings) {
		settings.put(PATTERNS, fPatterns.getText());
	}
}