Example usage for java.awt Window getSize

Introduction

In this page you can find the example usage for java.awt Window getSize.

Prototype

public Dimension getSize()

Source Link

Document

Returns the size of this component in the form of a Dimension object.

Usage

From source file:util.ui.UiUtilities.java

/**
 * Centers a window to its parent frame and shows it.
 * <p>//from  w  ww .j  a  va 2  s  . c o  m
 * If the window has no parent frame it will be centered to the screen.
 *
 * @param win
 *          The window to center and show.
 */
public static void centerAndShow(Window win) {
    Dimension wD = win.getSize();
    Dimension frameD;
    Point framePos;
    Frame frame = JOptionPane.getFrameForComponent(win);

    // Should this window be centered to its parent frame?
    boolean centerToParentFrame = (frame != null) && (frame != win) && frame.isShowing();

    // Center to parent frame or to screen
    if (centerToParentFrame) {
        frameD = frame.getSize();
        framePos = frame.getLocation();
    } else {
        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
        // dual head, use first screen
        if (ge.getScreenDevices().length > 1) {
            try {
                GraphicsDevice gd = ge.getDefaultScreenDevice();
                GraphicsConfiguration config = gd.getConfigurations()[0];
                frameD = config.getBounds().getSize();
                framePos = config.getBounds().getLocation();
            } catch (RuntimeException e) {
                frameD = Toolkit.getDefaultToolkit().getScreenSize();
                framePos = new Point(0, 0);
            }
        }
        // single screen only
        else {
            frameD = Toolkit.getDefaultToolkit().getScreenSize();
            framePos = new Point(0, 0);
        }
    }

    Point wPos = new Point(framePos.x + (frameD.width - wD.width) / 2,
            framePos.y + (frameD.height - wD.height) / 2);
    wPos.x = Math.max(0, wPos.x); // Make x > 0
    wPos.y = Math.max(0, wPos.y); // Make y > 0
    win.setLocation(wPos);
    win.setVisible(true);
}