001/////////////////////////////////////////////////////////////////////////////////////////////// 002// checkstyle: Checks Java source code and other text files for adherence to a set of rules. 003// Copyright (C) 2001-2024 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.ArrayList; 024import java.util.Collection; 025 026import javax.swing.JTextArea; 027 028import com.puppycrawl.tools.checkstyle.api.DetailAST; 029import com.puppycrawl.tools.checkstyle.api.DetailNode; 030 031/** 032 * Helper class to select a code. 033 */ 034public class CodeSelector { 035 036 /** Editor. */ 037 private final JTextArea editor; 038 /** Presentation model. */ 039 private final CodeSelectorPresentation pModel; 040 041 /** 042 * Constructor. 043 * 044 * @param node ast node. 045 * @param editor text area editor. 046 * @param lines2position positions of lines. 047 */ 048 public CodeSelector(final Object node, final JTextArea editor, 049 final Collection<Integer> lines2position) { 050 this.editor = editor; 051 if (node instanceof DetailAST) { 052 pModel = new CodeSelectorPresentation((DetailAST) node, 053 new ArrayList<>(lines2position)); 054 } 055 else { 056 pModel = new CodeSelectorPresentation((DetailNode) node, 057 new ArrayList<>(lines2position)); 058 } 059 } 060 061 /** 062 * Set selection. 063 */ 064 public void select() { 065 pModel.findSelectionPositions(); 066 editor.setSelectedTextColor(Color.blue); 067 editor.requestFocusInWindow(); 068 editor.setCaretPosition(pModel.getSelectionStart()); 069 editor.moveCaretPosition(pModel.getSelectionEnd()); 070 } 071 072}