Java JFrame Size getFramesCurrentScreenSize(JFrame currentFrame)

Description

get Frames Current Screen Size

License

Apache License

Declaration

public static Rectangle getFramesCurrentScreenSize(JFrame currentFrame) 

Method Source Code

//package com.java2s;
/*//w  ww  .j  av a2s .  c om
 *    Copyright 2016 Roche NimbleGen Inc.
 *
 *  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 java.awt.GraphicsDevice;
import java.awt.GraphicsEnvironment;

import java.awt.Rectangle;
import java.awt.geom.Rectangle2D;
import javax.swing.JFrame;

public class Main {
    public static Rectangle getFramesCurrentScreenSize(JFrame currentFrame) {
        Rectangle nonFullScreenBounds = currentFrame.getBounds();

        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        GraphicsDevice[] gs = ge.getScreenDevices();

        boolean currentScreenFound = false;
        int index = 0;

        java.awt.Rectangle currentScreenSize = null;
        // figure out which screen the frame is currently in and get its max
        // size
        // and upper left corner
        while (!currentScreenFound && index < gs.length) {
            java.awt.Rectangle screenBounds = gs[index].getDefaultConfiguration().getBounds();

            int frameCenterX = (int) (nonFullScreenBounds.getX() + (nonFullScreenBounds.getWidth() / 2));
            int frameCenterY = (int) (nonFullScreenBounds.getY() + (nonFullScreenBounds.getHeight() / 2));
            int screenStartX = (int) (screenBounds.getX());
            int screenEndX = (int) (screenStartX + screenBounds.getWidth());
            int screenStartY = (int) (screenBounds.getY());
            int screenEndY = (int) (screenStartY + screenBounds.getHeight());
            Rectangle2D screen = new Rectangle2D.Double(screenStartX, screenStartY, (screenEndX - screenStartX + 1),
                    (screenEndY - screenStartY + 1));
            currentScreenFound = screen.contains(frameCenterX, frameCenterY);
            if (currentScreenFound) {
                currentScreenSize = screenBounds;
            }
            index++;
        }

        if (!currentScreenFound) {
            currentScreenSize = ge.getDefaultScreenDevice().getDefaultConfiguration().getBounds();
        }
        return currentScreenSize;
    }
}

Related

1. adaptSize(JFrame frame, int preferredWidth, int preferredHeight)
2. getFrameSize(Component c)
3. getFrameSize(Component c)
4. getFrameSize(Component c)
5. isNormalSizeMode(JFrame window)