// set the frame on the center of bildschirm
private static void setFrameCenter(Frame f, boolean flag) {
// f.getToolkit();
// Dimension screen=f.getToolkit().getDefaultToolkit().getScreenSize();//获取屏幕尺寸对象
Dimension screen = Toolkit.getDefaultToolkit().getScreenSize(); // 获取屏幕尺寸对象
Dimension myframe = f.getSize(); // 获取当前窗体的尺寸对象
int w = (screen.width - myframe.width) / 2; // 水平位置
int h = (screen.height - myframe.width) / 2; // 垂直位置
f.setLocation(w, h);
f.setResizable(flag);
}
/**
* Centre the dialog box in the frame. This must be called after the size has been established,
* i.e. after the buttons etc. are arranged and pack() is called
*/
public void centreInFrame() {
Dimension frame_size = parent.getSize();
Point frame_location = parent.getLocation();
int centre_x = frame_location.x + frame_size.width / 2;
int centre_y = frame_location.y + frame_size.height / 2;
;
int xloc = centre_x - this.getSize().width / 2;
int yloc = centre_y - this.getSize().height / 2;
this.setLocation(new Point(xloc, yloc));
this.requestFocus();
}
