Java JDialog Center getCentredDialogBounds(JDialog dialog, Component parent, int defaultWidth, int defaultHeight)

Description

get Centred Dialog Bounds

License

Open Source License

Declaration

public static Rectangle getCentredDialogBounds(JDialog dialog, Component parent, int defaultWidth,
            int defaultHeight) 

Method Source Code

//package com.java2s;
/*//from ww  w . jav a2 s. c o m
JPC: A x86 PC Hardware Emulator for a pure Java Virtual Machine
Release Version 2.0
    
A project from the Physics Dept, The University of Oxford
    
Copyright (C) 2007 Isis Innovation Limited
    
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.
    
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
     
Details (including contact information) can be found at: 
    
www.physics.ox.ac.uk/jpc
*/

import java.awt.Component;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Point;
import java.awt.Rectangle;

import javax.swing.JDialog;

import javax.swing.SwingUtilities;

public class Main {
    public static Rectangle getCentredDialogBounds(JDialog dialog, Component parent, int defaultWidth,
            int defaultHeight) {
        Dimension pref = dialog.getPreferredSize();
        int w = pref.width;
        int h = pref.height;

        if (defaultWidth > 0)
            w = defaultWidth;
        if (defaultHeight > 0)
            h = defaultHeight;

        Rectangle parentBounds = parent.getBounds();
        Dimension size = new Dimension(defaultWidth, defaultHeight);
        int x = parentBounds.x + (parentBounds.width - size.width) / 2;
        int y = parentBounds.y + (parentBounds.height - size.height) / 2;
        Point pt = new Point(x, y);
        SwingUtilities.convertPointToScreen(pt, getApplicationFrame(dialog));
        x = Math.max(0, pt.x);
        y = Math.max(0, pt.y);

        return new Rectangle(x, y, size.width, size.height);
    }

    public static Frame getApplicationFrame(Component child) {
        for (Component c = child; c != null; c = c.getParent())
            if (c instanceof Frame)
                return (Frame) c;

        return null;
    }
}

Related

1. centerOnScreen(JDialog jdialog)
2. centerWindow(JDialog dialog)
3. centerWindow(JDialog dialog)
4. centrarVentana(JDialog pDialog)
5. getCentralDialogLocation(Component parent, JDialog dialog)
6. packAndCenterJDialog(JDialog form)
7. packInCenter(JDialog dialog)
8. resizeAndCenter(JDialog dialog, double factor)
9. setDialogCenter(JDialog frame)