Java Utililty Methods JFrame Center

List of utility methods to do JFrame Center

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Description

The list of methods to do JFrame Center are organized into topic(s).

Method

voidalignCenter(JInternalFrame internalFrame)
align Center 
JDesktopPane desktopPane = internalFrame.getDesktopPane();
int desktopWidth = desktopPane.getWidth();
int desktopHeight = desktopPane.getHeight();
int frameWidth = internalFrame.getWidth();
int frameHeight = internalFrame.getHeight();
Point newLocation = new Point((desktopWidth - frameWidth) / 2, (desktopHeight - frameHeight) / 2);
internalFrame.setLocation(newLocation);
voidcenter(JFrame frame)
Center JFrame. 
Dimension frameSize = frame.getSize();
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation((screenSize.width - frameSize.width) >> 1, (screenSize.height - frameSize.height) >> 1);
voidcenter(JFrame frame)
Description of the Method 
Dimension screen_size = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation((int) ((screen_size.getWidth() - frame.getWidth()) / 2),
        (int) ((screen_size.getHeight() - frame.getHeight()) / 2));
voidcenter(JFrame parent, JInternalFrame dialog)
Centers the supplied dialog in its parent's bounds. 
Dimension psize = parent.getSize();
Dimension dsize = dialog.getSize();
dialog.setLocation((psize.width - dsize.width) / 2, (psize.height - dsize.height) / 2);
voidcenterAndSizeFrame(JFrame frame)
Centeres the frame on the user's screen and sets the size of it to a reasonable size. 
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int height = screenSize.height;
int width = screenSize.width;
frame.setSize(width / 2, height / 2);
frame.setLocationRelativeTo(null);
DimensioncenterBigFrame(JFrame frame, int maxWidth, int maxHeight, double scaling, int minHeight)
Center a big window 
Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
int winWidth = screenSize.width - 40;
int winHeight = screenSize.height - 150;
if (winWidth > maxWidth) {
    winWidth = maxWidth;
if (winHeight > maxHeight) {
    winHeight = maxHeight;
...
voidcenterDialog(final JFrame frame, JDialog dialog)
Centers the dialog above the given frame 
int parWidth = frame.getWidth();
int parHeight = frame.getHeight();
int parX = frame.getLocation().x;
int parY = frame.getLocation().y;
Point loc = new Point(((parWidth - dialog.getWidth()) / 2) + parX,
        ((parHeight - dialog.getHeight()) / 2) + parY);
dialog.setLocation(loc);
voidcenterDialog(JDialog dialog, JFrame frame)
Centers a dialog in a frame 
if (dialog == null) {
    throw new NullPointerException("The dialog can't be null");
if (frame == null) {
    throw new NullPointerException("The frame can't be null");
final Dimension d = dialog.getSize();
dialog.setLocationRelativeTo(frame);
...
voidcenterDialog(JDialog dialog, JFrame parent)
center Dialog 
Point p = parent.getLocationOnScreen();
p.x += ((parent.getWidth() - dialog.getWidth()) / 2);
p.y += ((parent.getHeight() - dialog.getHeight()) / 2);
if (p.y <= 0)
    p.y = 20;
if (p.x <= 0)
    p.x = 20;
dialog.setLocation(p);
...
voidcenterDialogIntoFrame(java.awt.Component p_CompToBePositioned, javax.swing.JFrame p_MainFrame)
center Dialog Into Frame 
Dimension l_size = p_CompToBePositioned.getSize();
int y = p_MainFrame.getY() + ((p_MainFrame.getHeight() / 2) - (l_size.height / 2));
int x = p_MainFrame.getX() + ((p_MainFrame.getWidth() / 2) - (l_size.width / 2));
p_CompToBePositioned.setLocation(x, y);