Java JComponent Properties isVisible(JComponent comp)

Description

Returns true if the JComponent is visible on the monitor (e.g.

License

LGPL

Parameter

Parameter	Description
comp	the <code>JComponent</code> to check if selected.

Return

true if JComponent is visible on the monitor (e.g. his tab is selected).

Declaration

public static boolean isVisible(JComponent comp) 

Method Source Code

//package com.java2s;
/*//w  w w . j  a v a2s.c  o  m
 * Copyright 2007-2013
 * Licensed under GNU Lesser General Public License
 * 
 * This file is part of EpochX
 * 
 * EpochX is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * EpochX is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with EpochX. If not, see <http://www.gnu.org/licenses/>.
 * 
 * The latest version is available from: http://www.epochx.org
 */

import java.awt.Container;

import javax.swing.JComponent;
import javax.swing.JTabbedPane;

public class Main {
    /**
     * Returns <code>true</code> if the <code>JComponent</code> is visible
     * on the monitor (e.g. his parent tab is selected).
     * 
     * @param comp the <code>JComponent</code> to check if selected.
     * @return <code>true</code> if <code>JComponent</code> is visible on the
     *         monitor (e.g. his tab is selected).
     */
    public static boolean isVisible(JComponent comp) {
        if (comp == null) {
            return false;
        }
        Container parent = comp.getParent();
        if (parent == null || !(parent instanceof JTabbedPane)) {
            return true;
        }

        JTabbedPane tabbedPane = (JTabbedPane) parent;
        if (tabbedPane.getSelectedComponent() == comp) {
            return true;
        } else {
            return false;
        }
    }
}

Related

1. isOverlapping(JComponent comp1, JComponent comp2)
2. isPasteEnabled(JComponent component)
3. isRectangularSelection(JComponent c)
4. isRequired(JComponent component)
5. isVisible(JComponent c, Rectangle r)
6. isVisibleOnScreen(final JComponent component)
7. registerComponent(JComponent c)
8. registerDataFlavors(JComponent component, DataFlavor... dataFlavors)
9. resetDisplayComponent(JComponent mainComp, JComponent nonDispComp, JComponent newDispComp)