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SWT窗口居中

Posted on 2009-02-26 22:21 泰仔在线 阅读(1654) 评论(0)  编辑  收藏 所属分类: Java 相关
一、使用SWT本身的Display.getClientArea().width. height

        
////
        loginShell.setLocation(display.getClientArea().width / 2 - loginShell.getSize().x/2, display
                .getClientArea().height 
/ 2 - loginShell.getSize().y/2);
        
////
二、使用SWT本身的loginShell.getMonitor().getBounds() 与loginShell.getBounds()
        ////
        Monitor primary = loginShell.getMonitor();
        Rectangle bounds 
= primary.getBounds();
        Rectangle rect 
= loginShell.getBounds();
        
int x = bounds.x + (bounds.width - rect.width) / 2;
        
int y = bounds.y + (bounds.height - rect.height) / 2;
        
if (x < 0)
            x 
= 0;
        
if (y < 0)
            y 
= 0;
        loginShell.setLocation(x, y);
        
////
原例:
package demo;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.MouseAdapter;
import org.eclipse.swt.events.MouseEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class Login {

    
/**
     * Launch the application
     * 
@param args
     
*/

    
public static void main(String[] args) {
        
final Display display = Display.getDefault();
        
final Shell loginShell = new Shell();
        loginShell.setSize(
424222);
        loginShell.setText(
"Login");
        
////
        loginShell.setLocation(display.getClientArea().width / 2 - loginShell.getSize().x/2, display
                .getClientArea().height 
/ 2 - loginShell.getSize().y/2);
        
////
        loginShell.open();

        
final Label label1 = new Label(loginShell, SWT.NONE);
        label1.setAlignment(SWT.RIGHT);
        label1.setText(
"ユーザID:");
        label1.setBounds(
101466512);

        
final Label label2 = new Label(loginShell, SWT.NONE);
        label2.setAlignment(SWT.RIGHT);
        label2.setBounds(
101816512);
        label2.setText(
"パスワード:");

        
final Text userName = new Text(loginShell, SWT.BORDER);
        userName.setBounds(
1734210520);

        
final Text password = new Text(loginShell, SWT.BORDER);
        password.setBounds(
1737710520);

        
final Button btnLogin = new Button(loginShell, SWT.NONE);
        btnLogin.addMouseListener(
new MouseAdapter() {
            
public void mouseDown(MouseEvent e) {
                
try {
                    MaterialUpload window 
= new MaterialUpload();
                    loginShell.close();
                    window.open();
                }
 catch (Exception ex) {
                    ex.printStackTrace();
                }

            }

        }
);
        btnLogin.setText(
"ログイン");
        btnLogin.setBounds(
1011305922);

        
final Button btnClear = new Button(loginShell, SWT.NONE);
        btnClear.addMouseListener(
new MouseAdapter() {
            
public void mouseDown(MouseEvent arg0) {
                userName.setText(
"");
                password.setText(
"");
            }

        }
);
        btnClear.setText(
"クリア");
        btnClear.setBounds(
1831305922);

        
final Button btnClose = new Button(loginShell, SWT.NONE);
        btnClose.addMouseListener(
new MouseAdapter() {
            
public void mouseDown(MouseEvent arg0) {
                loginShell.close();
            }

        }
);
        btnClose.setBounds(
2641305922);
        btnClose.setText(
"閉じる");
        loginShell.layout();
        
while (!loginShell.isDisposed()) {
            
if (!display.readAndDispatch())
                display.sleep();
        }

    }


}

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