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

voidcenterFrame(Window owner)
center Frame 
Dimension size = owner.getSize();
owner.setLocation(center(size, getViewableRectangle()));
voidcenterFrameOnMainDisplay(final JFrame frame)
Center a frame on the main display 
final GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
final GraphicsDevice[] screens = ge.getScreenDevices();
if (screens.length < 1) {
    return; 
final Rectangle screenBounds = screens[0].getDefaultConfiguration().getBounds();
final int x = (int) ((screenBounds.getWidth() - frame.getWidth()) / 2);
final int y = (int) ((screenBounds.getHeight() - frame.getHeight()) / 2);
...
voidcenterFrameOnScreen(JFrame frame)
center Frame On Screen 
Toolkit toolkit = Toolkit.getDefaultToolkit();
Dimension screenSize = toolkit.getScreenSize();
Dimension frameSize = frame.getSize();
if (frameSize.height > screenSize.height) {
    frameSize.height = screenSize.height;
if (frameSize.width > screenSize.width) {
    frameSize.width = screenSize.width;
...
voidcenterFrameOnScreen(JFrame frame)
Centers a JFrame on screen. 
final Dimension position = Toolkit.getDefaultToolkit().getScreenSize();
frame.setLocation((position.width - frame.getWidth()) / 2, (position.height - frame.getHeight()) / 2);
voidcenterFrameTo(final JFrame frameToCenter, final Dimension orientDim)
center Frame To 
Dimension frameSize = frameToCenter.getSize();
int x = (orientDim.width - frameSize.width) / 2;
int y = (orientDim.height - frameSize.height) / 2;
frameToCenter.setLocation(x, y);
voidcenterJFrame(JFrame frame)
center J Frame 
int width = frame.getWidth();
int height = frame.getHeight();
Dimension screen = getScreenSize();
double x = ((double) screen.width / 2) - ((double) width / 2d);
double y = ((double) screen.height / 2) - ((double) height / 2d);
x = Math.round(x);
y = Math.round(y);
frame.setLocation((int) x, (int) y);
...
voidcenterOnFrame(JDialog dialog, JFrame frame)
center On Frame 
Point frameLoc = frame.getLocation();
Dimension frameSize = frame.getSize();
Dimension dialogSize = dialog.getSize();
int dialogX = frameLoc.x + (frameSize.width - dialogSize.width) / 2;
int dialogY = frameLoc.y + (frameSize.height - dialogSize.height) / 2;
dialog.setLocation(dialogX, dialogY);
voidcenterOnFrame(JFrame frame, Component comp)
center On Frame 
Point p = frame.getLocation();
int left = p.x + (frame.getWidth() - comp.getWidth()) / 2;
int top = p.y + (frame.getHeight() - comp.getHeight()) / 2;
comp.setLocation(left, top);
voidcenterOnParent(JDialog child, JFrame parent)
Centers a Dialog on its parent frame; 
int posX = parent.getX() + (parent.getWidth() / 2) - (child.getWidth() / 2);
int posY = parent.getY() + (parent.getHeight() / 2) - (child.getHeight() / 2);
child.setBounds(posX, posY, child.getWidth(), child.getHeight());
voidcenterOnScreen(JFrame frame, int screenID)
Centers a frame on screen. 
Rectangle screenBounds = getScreenBounds(screenID);
int x = screenBounds.x + screenBounds.width / 2 - frame.getWidth() / 2;
int y = screenBounds.y + screenBounds.height / 2 - frame.getHeight() / 2;
frame.setLocation(x, y);