Examples of org.eclipse.swt.layout.FormLayout

org.eclipse.swt.layout.FormLayout
Instances of this class control the position and size of the children of a composite control by using FormAttachments to optionally configure the left, top, right and bottom edges of each child.
The following example code creates a FormLayout and then sets it into a Shell:
```
 Display display = new Display (); Shell shell = new Shell(display); FormLayout layout = new FormLayout(); layout.marginWidth = 3; layout.marginHeight = 3; shell.setLayout(layout); 
```
To use a FormLayout, create a FormData with FormAttachment for each child of Composite. The following example code attaches button1 to the top and left edge of the composite and button2 to the right edge of button1 and the top and right edges of the composite:
```
 FormData data1 = new FormData(); data1.left = new FormAttachment(0, 0); data1.top = new FormAttachment(0, 0); button1.setLayoutData(data1); FormData data2 = new FormData(); data2.left = new FormAttachment(button1); data2.top = new FormAttachment(0, 0); data2.right = new FormAttachment(100, 0); button2.setLayoutData(data2); 
```
Each side of a child control can be attached to a position in the parent composite, or to other controls within the Composite by creating instances of FormAttachment and setting them into the top, bottom, left, and right fields of the child's FormData.

If a side is not given an attachment, it is defined as not being attached to anything, causing the child to remain at its preferred size. If a child is given no attachment on either the left or the right or top or bottom, it is automatically attached to the left and top of the composite respectively. The following code positions button1 and button2 but relies on default attachments:
```
 FormData data2 = new FormData(); data2.left = new FormAttachment(button1); data2.right = new FormAttachment(100, 0); button2.setLayoutData(data2); 
```
IMPORTANT: Do not define circular attachments. For example, do not attach the right edge of button1 to the left edge of button2 and then attach the left edge of button2 to the right edge of button1. This will over constrain the layout, causing undefined behavior. The algorithm will terminate, but the results are undefined.
@see FormData @see FormAttachment @since 2.0

        // +
        // +label+text+bbox+
        // +
        // contents
        // +
        FormLayout layout = new FormLayout();
        layout.marginHeight = 0;
        layout.marginWidth = 0;
        layout.spacing = 0;
        aParent.setLayout(layout);

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  }


  public SWTEventHandler(Composite frame, Profile profile) {
    super(profile);
    this.frame = frame;
    frame.setLayout(new FormLayout());


    // Left
    Composite sfLeft = new Composite(frame, SWT.NULL);
    sfLeft.setLayout(new FormLayout());


    // Right
    Composite sfRight = new Composite(frame, SWT.NULL);
    sfRight.setLayout(new FormLayout());


    // Build the split
    buildSplit(frame, sfLeft, sfRight);


    // Top Left

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            return;
        }
        // end of Customised parameter widgets       
        
        _paramsComposite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
        _paramsComposite.setLayout(new FormLayout());
        int parameterPositionOffset = 0;
        for (ParameterData param : params)
        {            
            boolean valueInCombo = false;
            Label label = _toolkit.createLabel(_paramsComposite, ViewUtility.getDisplayText(param.getName()));

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        final Composite composite = _toolkit.createComposite(scrolledComposite, SWT.NONE);
        scrolledComposite.setContent(composite);
        layoutData = new GridData(SWT.FILL, SWT.FILL, true, true);            
        layoutData.verticalIndent = 20;
        composite.setLayoutData(layoutData);
        composite.setLayout(new FormLayout());
        
        List<ParameterData> params = _opData.getParameters();
        ParameterData param = params.get(0);
        // Queue selection widget
        Label label = _toolkit.createLabel(composite, ViewUtility.getDisplayText(param.getName()));

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     */
    private void createNotificationInfoComposite()
    {
        Composite composite = _toolkit.createComposite(_form.getBody(), SWT.NONE);
        composite.setLayoutData(new GridData(SWT.FILL, SWT.TOP, true, false));
        composite.setLayout(new FormLayout());
        
        Label label = _toolkit.createLabel(composite, "Select the notification to subscribe or unsubscribe");
        label.setFont(ApplicationRegistry.getFont(FONT_BOLD));
        FormData formData = new FormData();
        formData.top = new FormAttachment(0, 10);

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    public void createPartControl(Composite parent)
    {
        // Create the Form
        _toolkit = new FormToolkit(parent.getDisplay());
        _form = _toolkit.createForm(parent);
        _form.getBody().setLayout(new FormLayout());
        _form.setText(APPLICATION_NAME);
        
        // Add selection listener for selection events in the Navigation view
        getSite().getPage().addSelectionListener(NavigationView.ID, _selectionListener);

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    initGui();
    annotationListener = new CheckAnnotationDocumentListener(this);
  }


  private void initGui() {
    this.setLayout(new FormLayout());
    this.setSize(400, 800);


    documentSource = new Text(this, SWT.SINGLE | SWT.BORDER);
    FormData fdata1 = new FormData();
    fdata1.width = 200;

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  private Composite iContainer;
  
  public UXFileBrowserInput(final Composite parent) {
    super(parent);
    iContainer = new Composite(container, SWT.NONE);
    iContainer.setLayout(new FormLayout());
    
    FormData data = (FormData) label.getLayoutData();
    data.top = new FormAttachment(0, 5);
    
    data = new FormData();

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  public static void enableFormLayout(Composite c, int vMargin, int hMargin) {
    enableFormLayout(c, vMargin, hMargin, vMargin, hMargin);
  }  
  
  public static void enableFormLayout(Composite c, int t, int r, int b, int l) { 
    FormLayout layout = new FormLayout();
    layout.marginTop = t;
    layout.marginRight = r;
    layout.marginBottom = b;
    layout.marginLeft = l;
    c.setLayout(layout);

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  protected Composite container;
  
  public UXWidget(Composite parent) {
    container = new Composite(parent, SWT.NONE);
    container.setLayout(new FormLayout());
  }

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