Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.awt.Dimension;
import java.awt.Frame;

import java.awt.Toolkit;
import java.awt.Window;

public class Main {
    /**
     * Centers a Frame in the middle of the screen. Also sets minimum size
     * as 30% of the entire screen and preferred size as 80% of the entire
     * screen.
     * 
     * @param frame
     */
    public static void centerWindow(Frame frame) {
        centerWindow(frame, 0);
    }

    public static void centerWindow(Frame frame, int size) {
        centerWindow(frame, size, size);
    }

    public static void centerWindow(Frame frame, int width, int height) {
        centerWindow((Window) frame, width, height);
    }

    public static void centerWindow(Window window, int width, int height) {
        // Get screen size
        final Toolkit tk = Toolkit.getDefaultToolkit();
        final Dimension screensize = tk.getScreenSize();

        // Set window minimum size
        window.setMinimumSize(new Dimension((int) Math.floor(screensize.getWidth() * 0.3),
                (int) Math.floor(screensize.getHeight() * 0.3)));

        // Set window size
        if (width == 0f)
            width = (int) Math.floor(screensize.getWidth() * 0.8);

        if (height == 0f)
            height = (int) Math.floor(screensize.getHeight() * 0.8);

        window.setPreferredSize(new Dimension(width, height));

        int left = (int) (screensize.getWidth() - width) / 2;
        int right = (int) (screensize.getHeight() - height) / 2;
        ;

        // Center window
        window.setLocation(left, right);
    }
}