FillLayout

<code>FillLayout</code> is the simplest layout class. It lays out controls in a single row or column, forcing them to be the same size. Initially, the controls will all be as tall as the tallest control, and as wide as the widest. <code>FillLayout</code> does not wrap, but you can specify margins and spacing. You might use it to lay out buttons in a task bar or tool bar, or to stack checkboxes in a <code>Group</code>. <code>FillLayout</code> can also be used when a <code>Composite</code> only has one child. For example, if a <code>Shell</code> has a single <code>Group</code> child, <code>FillLayout</code> will cause the <code>Group</code> to completely fill the <code>Shell</code> (if margins are 0). Example code: first a <code>FillLayout</code> is created and its type field is set, and then the layout is set into the <code>Composite</code>. Note that in a <code>FillLayout</code>, children are always the same size, and they fill all available space. <pre> FillLayout fillLayout = new FillLayout(); fillLayout.type = SWT.VERTICAL; shell.setLayout(fillLayout); </pre>

@see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: LayoutExample</a> @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>

final

class FillLayout : Layout {

this();

String toString();

}

Constructors

this this(): Constructs a new instance of this class.
this this(int type): Constructs a new instance of this class given the type.

Members

Functions

toString String toString(): Returns a string containing a concise, human-readable description of the receiver.

Variables

marginHeight int marginHeight;: marginHeight specifies the number of pixels of vertical margin that will be placed along the top and bottom edges of the layout.
marginWidth int marginWidth;: marginWidth specifies the number of pixels of horizontal margin that will be placed along the left and right edges of the layout.
spacing int spacing;: spacing specifies the number of pixels between the edge of one cell and the edge of its neighbouring cell.
type int type;: type specifies how controls will be positioned within the layout.

Inherited Members

From Layout

computeSize Point computeSize(Composite composite, int wHint, int hHint, bool flushCache): Computes and returns the size of the specified composite's client area according to this layout. This method computes the size that the client area of the composite must be in order to position all children at their preferred size inside the composite according to the layout algorithm encoded by this layout. When a width or height hint is supplied, it is used to constrain the result. For example, if a width hint is provided that is less than the width of the client area, the layout may choose to wrap and increase height, clip, overlap, or otherwise constrain the children.
flushCache bool flushCache(Control control): Instruct the layout to flush any cached values associated with the control specified in the argument <code>control</code>.
layout void layout(Composite composite, bool flushCache): Lays out the children of the specified composite according to this layout. This method positions and sizes the children of a composite using the layout algorithm encoded by this layout. Children of the composite are positioned in the client area of the composite. The position of the composite is not altered by this method. When the flush cache hint is true, the layout is instructed to flush any cached values associated with the children. Typically, a layout will cache the preferred sizes of the children to avoid the expense of computing these values each time the widget is laid out. When layout is triggered explicitly by the programmer the flush cache hint is true. When layout is triggered by a resize, either caused by the programmer or by the user, the hint is false.