ensure JInternalFrame Visibility At Parent - Java Swing

Java examples for Swing:JFrame

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Description

ensure JInternalFrame Visibility At Parent

Demo Code

/* //w ww . ja v  a  2s  .  com
 * Copyright 2014 Igor Maznitsa (http://www.igormaznitsa.com).
 *
 * 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 com.java2s;
import java.awt.*;
import javax.swing.JComponent;
import javax.swing.JInternalFrame;
import javax.swing.SwingUtilities;

public class Main {
    public static void ensureVisibilityAtParent(final JInternalFrame frame) {
        final JComponent parent = (JComponent) frame.getParent();
        final Rectangle parentRect = SwingUtilities.calculateInnerArea(
                parent, null);
        final Rectangle frameRect = frame.getBounds();

        final int x = Math.min(frameRect.x,
                Math.max(0, parentRect.width - frameRect.width));
        final int y = Math.min(frameRect.y,
                Math.max(0, parentRect.height - frameRect.height));

        frame.setLocation(x, y);
    }
}

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