001////////////////////////////////////////////////////////////////////////////////
002// checkstyle: Checks Java source code for adherence to a set of rules.
003// Copyright (C) 2001-2016 the original author or authors.
004//
005// This library is free software; you can redistribute it and/or
006// modify it under the terms of the GNU Lesser General Public
007// License as published by the Free Software Foundation; either
008// version 2.1 of the License, or (at your option) any later version.
009//
010// This library is distributed in the hope that it will be useful,
011// but WITHOUT ANY WARRANTY; without even the implied warranty of
012// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013// Lesser General Public License for more details.
014//
015// You should have received a copy of the GNU Lesser General Public
016// License along with this library; if not, write to the Free Software
017// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
018////////////////////////////////////////////////////////////////////////////////
019
020package com.puppycrawl.tools.checkstyle.gui;
021
022import java.awt.Color;
023import java.util.List;
024
025import javax.swing.JTextArea;
026
027import com.puppycrawl.tools.checkstyle.api.DetailAST;
028
029/**
030 * Helper class to select a code.
031 * @author unknown
032 */
033public class CodeSelector {
034    /** Editor. */
035    private final JTextArea editor;
036    /** Presentation model. */
037    private final CodeSelectorPModel pModel;
038
039    /**
040     * Constructor.
041     * @param ast ast node.
042     * @param editor text area editor.
043     * @param lines2position list to map lines.
044     */
045    public CodeSelector(final DetailAST ast, final JTextArea editor,
046                        final List<Integer> lines2position) {
047        this.editor = editor;
048        pModel = new CodeSelectorPModel(ast, lines2position);
049    }
050
051    /**
052     * Set selection.
053     */
054    public void select() {
055        pModel.findSelectionPositions();
056        editor.setSelectedTextColor(Color.blue);
057        editor.requestFocusInWindow();
058        editor.setCaretPosition(pModel.getSelectionStart());
059        editor.moveCaretPosition(pModel.getSelectionEnd());
060    }
061}