Java JTextComponent Caret getLineAtCaret(final JTextComponent component)

Description

get Line At Caret

License

Open Source License

Declaration

public static int getLineAtCaret(final JTextComponent component) 

Method Source Code

//package com.java2s;
/*//from  w w w  .  j a v  a 2s.co m
Copyright 2015 Google Inc. All Rights Reserved.
    
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.
*/

import javax.swing.text.Element;
import javax.swing.text.JTextComponent;

public class Main {
    public static int getLineAtCaret(final JTextComponent component) {
        final int caretPosition = component.getCaretPosition();
        final Element root = component.getDocument().getDefaultRootElement();

        return root.getElementIndex(caretPosition) + 1;
    }
}

Related

1. getCaretCol(int idx, JTextComponent comp)
2. getCaretRow(int idx, JTextComponent comp)
3. makeCaretAlwaysVisible(final JTextComponent comp)
4. selectLineAtCaret(JTextComponent editor)
5. setCaretUpdateEnabled(JTextComponent comp, boolean updateEnabled)
6. setTextAndResetCaret(JTextComponent component, String text)