Java Window Center showCenterWindow(Window parent, Window window)

Description

show Center Window

License

Apache License

Declaration

public static void showCenterWindow(Window parent, Window window) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import javax.swing.*;

import java.awt.*;

public class Main {
    public static void showCenterWindow(Window parent, Window window) {
        positionCenterWindow(parent, window);
        window.setVisible(true);//from   w w w.  j  a v  a 2s .  c  o  m
    }

    public static void positionCenterWindow(Window parent, Window window) {
        if (parent == null) {
            positionCenterScreen(window);
            return;
        } else {
            if (!parent.isVisible()) {
                positionCenterScreen(window);
                return;
            }
        }
        Dimension sSize = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension wSize = window.getSize();
        if (wSize.height > sSize.height) {
            wSize.height = sSize.height;
        }
        if (wSize.width > sSize.width) {
            wSize.width = sSize.width;
        }
        window.setSize(wSize);
        Rectangle pBounds = parent.getBounds();
        int x = pBounds.x + ((pBounds.width - wSize.width) / 2);
        if (x < 0) {
            x = 0;
        }
        int y = pBounds.y + ((pBounds.height - wSize.height) / 2);
        if (y < 0) {
            y = 0;
        }
        if (x + wSize.width > sSize.width) {
            x = sSize.width - wSize.width;
        }
        if (y + wSize.height > sSize.height) {
            y = sSize.height - wSize.height;
        }
        window.setLocation(x, y);
        window.toFront();
    }

    public static void positionCenterScreen(Window window) {
        Dimension maxDimension = Toolkit.getDefaultToolkit().getScreenSize();
        Dimension wSize = window.getSize();
        int maxWidth = maxDimension.width;
        int maxHeight = maxDimension.height;
        // fit on window
        if (wSize.height > maxHeight) {
            wSize.height = maxHeight;
        }
        if (wSize.width > maxWidth) {
            wSize.width = maxWidth;
        }
        window.setSize(wSize);
        if (maxDimension.width != wSize.width && maxDimension.height != wSize.height) {
            int x = (maxDimension.width - wSize.width) / 2;
            int y = (maxDimension.height - wSize.height) / 2;
            window.setLocation(x, y);
        } else {
            if (window instanceof JFrame) {
                JFrame f = (JFrame) window;
                f.setExtendedState(JFrame.MAXIMIZED_BOTH);
            } else {
                window.setLocation(0, 0);
            }
        }
        window.toFront();
    }
}

Related

1. centerWindow(Window w)
2. packAndCenterWindow(Window dlg)
3. packAndDisplayInCenterOfScreen(final Window f)
4. positionCenterScreen(Window window)
5. showCentered(Window window)