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

Go to download
Show more of this group Show more artifacts with this name
Show all versions of okapi-lib-ui Show documentation
There is a newer version: 1.47.0
/*===========================================================================
  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 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.Rule;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Point;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
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 RuleDialog {
	
	private Shell shell;
	private Text edBefore;
	private Text edAfter;
	private Button rdBreak;
	private Button rdNoBreak;
	private Rule result = null;
	private IHelp help;
	private Text edComments;

	public RuleDialog (Shell parent,
		Rule rule,
		IHelp helpParam)
	{
		help = helpParam;
		shell = new Shell(parent, SWT.CLOSE | SWT.TITLE | SWT.RESIZE | SWT.APPLICATION_MODAL);
		shell.setText(Res.getString("ruleDlg.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("ruleDlg.beforeLabel")); //$NON-NLS-1$
		
		edBefore = new Text(cmpTmp, SWT.BORDER | SWT.SINGLE);
		GridData gdTmp = new GridData(GridData.FILL_HORIZONTAL);
		edBefore.setLayoutData(gdTmp);
		
		label = new Label(cmpTmp, SWT.NONE);
		label.setText(Res.getString("ruleDlg.afterLabel")); //$NON-NLS-1$
		
		edAfter = new Text(cmpTmp, SWT.BORDER | SWT.SINGLE);
		gdTmp = new GridData(GridData.FILL_HORIZONTAL);
		edAfter.setLayoutData(gdTmp);
		
		label = new Label(cmpTmp, SWT.NONE);
		label.setText(Res.getString("ruleDlg.actionLabel")); //$NON-NLS-1$
		
		rdBreak = new Button(cmpTmp, SWT.RADIO);
		rdBreak.setText(Res.getString("ruleDlg.isBreak")); //$NON-NLS-1$
		gdTmp = new GridData();
		int indent = 20;
		gdTmp.horizontalIndent = indent;
		rdBreak.setLayoutData(gdTmp);

		rdNoBreak = new Button(cmpTmp, SWT.RADIO);
		rdNoBreak.setText(Res.getString("ruleDlg.notBreak")); //$NON-NLS-1$
		gdTmp = new GridData();
		gdTmp.horizontalIndent = indent;
		rdNoBreak.setLayoutData(gdTmp);

		rdBreak.setSelection(rule.isBreak());
		rdNoBreak.setSelection(!rule.isBreak());
		
		label = new Label(cmpTmp, SWT.NONE);
		label.setText(Res.getString("RuleDialog.comments")); //$NON-NLS-1$

		edComments = new Text(cmpTmp, SWT.MULTI | SWT.BORDER | SWT.V_SCROLL);
		gdTmp = new GridData(GridData.FILL_BOTH);
		gdTmp.heightHint = 60;
		edComments.setLayoutData(gdTmp);
		edComments.setText(rule.getComment()==null ? "" : rule.getComment()); //$NON-NLS-1$

		//--- 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 Rule");
					return;
				}
				if ( e.widget.getData().equals("o") ) { //$NON-NLS-1$
					if ( !saveData() ) return;
				}
				shell.close();
			};
		};
		OKCancelPanel 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());
		Point startSize = shell.getMinimumSize();
		if ( startSize.x < 600 ) startSize.x = 600; 
		shell.setSize(startSize);
		Dialogs.centerWindow(shell, parent);

		// Set the text after the resize
		edAfter.setText(rule.getAfter());
		edBefore.setText(rule.getBefore());
	}
	
	public Rule showDialog () {
		shell.open();
		while ( !shell.isDisposed() ) {
			if ( !shell.getDisplay().readAndDispatch() )
				shell.getDisplay().sleep();
		}
		return result;
	}

	private boolean saveData () {
		try {
			if (( edBefore.getText().length() == 0 )
				&& ( edAfter.getText().length() == 0 )) {
				edBefore.selectAll();
				edBefore.setFocus();
				return false;
			}
			// The patterns pass: create the new rule
			result = new Rule(edBefore.getText(), edAfter.getText(), rdBreak.getSelection());
			result.setComment(edComments.getText());
			return true;
		}
		catch ( Exception e) {
			Dialogs.showError(shell, e.getLocalizedMessage(), null);
			return false;
		}
	}

}