net.sf.okapi.lib.ui.segmentation.LanguageMapDialog Maven / Gradle / Ivy

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/*===========================================================================
  Copyright (C) 2008-2009 by the Okapi Framework contributors
-----------------------------------------------------------------------------
  Licensed under the Apache License, Version 2.0 (the "License");
  you may not use this file except in compliance with the License.
  You may obtain a copy of the License at

  http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.
===========================================================================*/

package net.sf.okapi.lib.ui.segmentation;

import java.util.regex.Pattern;

import net.sf.okapi.common.IHelp;
import net.sf.okapi.common.ui.Dialogs;
import net.sf.okapi.common.ui.OKCancelPanel;
import net.sf.okapi.common.ui.UIUtil;
import net.sf.okapi.lib.segmentation.LanguageMap;

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.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class LanguageMapDialog {
	
	private Shell shell;
	private Text edPattern;
	private Text edRuleName;
	private LanguageMap result = null;
	private OKCancelPanel pnlActions;
	private IHelp help;

	public LanguageMapDialog (Shell parent,
		LanguageMap langMap,
		IHelp helpParam)
	{
		help = helpParam;
		shell = new Shell(parent, SWT.CLOSE | SWT.TITLE | SWT.RESIZE | SWT.APPLICATION_MODAL);
		shell.setText(Res.getString("langMap.caption")); //$NON-NLS-1$
		UIUtil.inheritIcon(shell, parent);
		shell.setLayout(new GridLayout());
		
		Composite cmpTmp = new Composite(shell, SWT.BORDER);
		cmpTmp.setLayoutData(new GridData(GridData.FILL_BOTH));
		GridLayout layTmp = new GridLayout();
		cmpTmp.setLayout(layTmp);

		Label label = new Label(cmpTmp, SWT.NONE);
		label.setText(Res.getString("langMap.regexLabel")); //$NON-NLS-1$
		
		edPattern = new Text(cmpTmp, SWT.BORDER | SWT.SINGLE);
		GridData gdTmp = new GridData(GridData.FILL_HORIZONTAL);
		edPattern.setLayoutData(gdTmp);
		edPattern.setText(langMap.getPattern());
		
		label = new Label(cmpTmp, SWT.NONE);
		label.setText(Res.getString("langMap.groupName")); //$NON-NLS-1$
		
		edRuleName = new Text(cmpTmp, SWT.BORDER | SWT.SINGLE);
		gdTmp = new GridData(GridData.FILL_HORIZONTAL);
		edRuleName.setLayoutData(gdTmp);
		edRuleName.setText(langMap.getRuleName());
		
		//--- Dialog-level buttons

		SelectionAdapter OKCancelActions = new SelectionAdapter() {
			public void widgetSelected(SelectionEvent e) {
				result = null;
				if ( e.widget.getData().equals("h") ) { //$NON-NLS-1$
					if ( help != null ) help.showWiki("Ratel - Edit Language Map");
					return;
				}
				if ( e.widget.getData().equals("o") ) { //$NON-NLS-1$
					if ( !saveData() ) return;
				}
				shell.close();
			};
		};
		pnlActions = new OKCancelPanel(shell, SWT.NONE, OKCancelActions, true);
		pnlActions.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
		shell.setDefaultButton(pnlActions.btOK);

		shell.pack();
		shell.setMinimumSize(shell.getSize());
		Dialogs.centerWindow(shell, parent);
	}
	
	public LanguageMap showDialog () {
		shell.open();
		while ( !shell.isDisposed() ) {
			if ( !shell.getDisplay().readAndDispatch() )
				shell.getDisplay().sleep();
		}
		return result;
	}

	private boolean saveData () {
		try {
			if (( edPattern.getText().length() == 0 )
				&& ( edRuleName.getText().length() == 0 )) {
				edPattern.selectAll();
				edPattern.setFocus();
				return false;
			}
			Pattern.compile(edPattern.getText());
			result = new LanguageMap(edPattern.getText(), edRuleName.getText());
			return true;
		}
		catch ( Exception e) {
			Dialogs.showError(shell, e.getLocalizedMessage(), null);
			return false;
		}
	}

}