Laying Out Children of a Composite : Layout Basics « SWT « Java Tutorial

Java Tutorial
1. Language
2. Data Type
3. Operators
4. Statement Control
5. Class Definition
6. Development
7. Reflection
8. Regular Expressions
9. Collections
10. Thread
11. File
12. Generics
13. I18N
14. Swing
15. Swing Event
16. 2D Graphics
17. SWT
18. SWT 2D Graphics
19. Network
20. Database
21. Hibernate
22. JPA
23. JSP
24. JSTL
25. Servlet
26. Web Services SOA
27. EJB3
28. Spring
29. PDF
30. Email
31. J2ME
32. J2EE Application
33. XML
34. Design Pattern
35. Log
36. Security
37. Apache Common
38. Ant
39. JUnit
Java
Java Source Code / Java Documentation
Java Open Source
Jar File Download
Java Articles
Java Products
Java by API
Photoshop Tutorials
Maya Tutorials
Flash Tutorials
3ds-Max Tutorials
Illustrator Tutorials
GIMP Tutorials
C# / C Sharp
C# / CSharp Tutorial
C# / CSharp Open Source
ASP.Net
ASP.NET Tutorial
JavaScript DHTML
JavaScript Tutorial
JavaScript Reference
HTML / CSS
HTML CSS Reference
C / ANSI-C
C Tutorial
C++
C++ Tutorial
Ruby
PHP
Python
Python Tutorial
Python Open Source
SQL Server / T-SQL
SQL Server / T-SQL Tutorial
Oracle PL / SQL
Oracle PL/SQL Tutorial
PostgreSQL
SQL / MySQL
MySQL Tutorial
VB.Net
VB.Net Tutorial
Flash / Flex / ActionScript
VBA / Excel / Access / Word
XML
XML Tutorial
Microsoft Office PowerPoint 2007 Tutorial
Microsoft Office Excel 2007 Tutorial
Microsoft Office Word 2007 Tutorial
Java Tutorial » SWT » Layout Basics 
17. 93. 5. Laying Out Children of a Composite
public void layout(boolean changed)

Setting the changed flag to true forces the layout to refresh any cached information about its children. On Windows, the information about the children is always updated regardless of the value of the changed flag.

Laying Out Children of a Composite
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class CompositeLayout {
  static int count = 0;

  public static void main(String[] args) {
    Display display = new Display();
    final Shell shell = new Shell(display);

    shell.setLayout(new RowLayout());

    Button buttonAdd = new Button(shell, SWT.PUSH);
    buttonAdd.setText("Add new button");
    buttonAdd.addSelectionListener(new SelectionAdapter() {
      public void widgetSelected(SelectionEvent e) {
        Button button = new Button(shell, SWT.PUSH);
        button.setText("Button #" (count++));
        shell.layout(true);
        shell.pack();
        // shell.layout(true;
        // shell.pack(true);
      }
    });

    shell.setSize(450100);
    shell.open();

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch()) {
        display.sleep();
      }
    }
    display.dispose();
  }
}
17. 93. Layout Basics
17. 93. 1. Layouts
17. 93. 2. A few terms that are used frequently when discussing layouts
17. 93. 3. Setting Layouts
17. 93. 4. Using Layout Data Objects to control layoutUsing Layout Data Objects to control layout
17. 93. 5. Laying Out Children of a CompositeLaying Out Children of a Composite
17. 93. 6. Layout term: bounds, client areaLayout term: bounds, client area
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.