Class FillLayout
FillLayout 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. FillLayout 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 Group. FillLayout can also be used
 when a Composite only has one child. For example,
 if a Shell has a single Group child,
 FillLayout will cause the Group to
 completely fill the Shell (if margins are 0).
 
 Example code: first a FillLayout is created and
 its type field is set, and then the layout is set into the
 Composite. Note that in a FillLayout,
 children are always the same size, and they fill all available space.
 
    FillLayout fillLayout = new FillLayout();
    fillLayout.type = SWT.VERTICAL;
    shell.setLayout(fillLayout);
 
 - Since:
- 1.0
- See Also:
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Field SummaryFieldsModifier and TypeFieldDescriptionintmarginHeight specifies the number of pixels of vertical margin that will be placed along the top and bottom edges of the layout.intmarginWidth specifies the number of pixels of horizontal margin that will be placed along the left and right edges of the layout.intspacing specifies the number of pixels between the edge of one cell and the edge of its neighbouring cell.inttype specifies how controls will be positioned within the layout.
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Constructor SummaryConstructorsConstructorDescriptionConstructs a new instance of this class.FillLayout(int type) Constructs a new instance of this class given the type.
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Method SummaryModifier and TypeMethodDescriptionprotected PointcomputeSize(Composite composite, int wHint, int hHint, boolean flushCache) Computes and returns the size of the specified composite's client area according to this layout.protected booleanflushCache(Control control) Instruct the layout to flush any cached values associated with the control specified in the argumentcontrol.protected voidLays out the children of the specified composite according to this layout.toString()Returns a string containing a concise, human-readable description of the receiver.
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Field Details- 
typepublic int typetype specifies how controls will be positioned within the layout. The default value is HORIZONTAL. Possible values are:- HORIZONTAL: Position the controls horizontally from left to right
- VERTICAL: Position the controls vertically from top to bottom
 
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marginWidthpublic int marginWidthmarginWidth specifies the number of pixels of horizontal margin that will be placed along the left and right edges of the layout. The default value is 0.
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marginHeightpublic int marginHeightmarginHeight specifies the number of pixels of vertical margin that will be placed along the top and bottom edges of the layout. The default value is 0.
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spacingpublic int spacingspacing specifies the number of pixels between the edge of one cell and the edge of its neighbouring cell. The default value is 0.
 
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Constructor Details- 
FillLayoutpublic FillLayout()Constructs a new instance of this class.
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FillLayoutpublic FillLayout(int type) Constructs a new instance of this class given the type.- Parameters:
- type- the type of fill layout
 
 
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Method Details- 
computeSizeDescription copied from class:LayoutComputes 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. - Specified by:
- computeSizein class- Layout
- Parameters:
- composite- a composite widget using this layout
- wHint- width (- SWT.DEFAULTfor preferred size)
- hHint- height (- SWT.DEFAULTfor preferred size)
- flushCache-- truemeans flush cached layout values
- Returns:
- a point containing the computed size (width, height)
- See Also:
- 
- Layout.layout(org.eclipse.swt.widgets.Composite, boolean)
- Control.getBorderWidth()
- Control.getBounds()
- Control.getSize()
- Control.pack(boolean)
- "computeTrim, getClientArea for controls that implement them"
 
 
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flushCacheDescription copied from class:LayoutInstruct the layout to flush any cached values associated with the control specified in the argumentcontrol.- Overrides:
- flushCachein class- Layout
- Parameters:
- control- a control managed by this layout
- Returns:
- true if the Layout has flushed all cached information associated with control
 
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layoutDescription copied from class:LayoutLays 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. 
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toStringReturns a string containing a concise, human-readable description of the receiver.
 
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