Eclipse Draw2d
3.8.0.201206011245

org.eclipse.draw2d
Interface LayoutManager

All Known Implementing Classes:
AbstractHintLayout, AbstractLayout, BlockFlowLayout, BorderLayout, DelegatingLayout, FlowContainerLayout, FlowFigureLayout, FlowLayout, FreeformLayout, GridLayout, InlineFlowLayout, OrderedLayout, PageFlowLayout, ParagraphTextLayout, ScrollBarLayout, ScrollPaneLayout, SimpleTextLayout, StackLayout, TextLayout, ToolbarLayout, ViewportLayout, XYLayout

public interface LayoutManager

A helper for positioning child figures and determining the ideal size for a figure with children.


Method Summary
 Object getConstraint(IFigure child)
          Returns the constraint for the given figure.
 Dimension getMinimumSize(IFigure container, int wHint, int hHint)
          Returns the minimum size of the given figure.
 Dimension getPreferredSize(IFigure container, int wHint, int hHint)
          Returns the preferred size of the given figure, using width and height hints.
 void invalidate()
          Tells the LayoutManager to throw away all cached information about the figures it is responsible for.
 void layout(IFigure container)
          Lays out the given figure.
 void remove(IFigure child)
          Removes the given child from this layout.
 void setConstraint(IFigure child, Object constraint)
          Sets the constraint for the given child.
 

Method Detail

getConstraint

Object getConstraint(IFigure child)
Returns the constraint for the given figure.

Parameters:
child - The figure
Returns:
The constraint

getMinimumSize

Dimension getMinimumSize(IFigure container,
                         int wHint,
                         int hHint)
Returns the minimum size of the given figure.

Parameters:
container - The Figure
wHint - the width hint
hHint - the height hint
Returns:
The minimum size

getPreferredSize

Dimension getPreferredSize(IFigure container,
                           int wHint,
                           int hHint)
Returns the preferred size of the given figure, using width and height hints.

Parameters:
container - The figure
wHint - The width hint
hHint - The height hint
Returns:
The preferred size

invalidate

void invalidate()
Tells the LayoutManager to throw away all cached information about the figures it is responsible for. This method is called whenever the owning figure is invalidated.


layout

void layout(IFigure container)
Lays out the given figure.

Parameters:
container - The figure

remove

void remove(IFigure child)
Removes the given child from this layout.

Parameters:
child - the child being remoced

setConstraint

void setConstraint(IFigure child,
                   Object constraint)
Sets the constraint for the given child.

Parameters:
child - The figure
constraint - The constraint

Eclipse Draw2d
3.8.0.201206011245

Copyright (c) IBM Corp. and others 2000, 2011. All Rights Reserved.