org.eclipse.draw2d
Interface LayoutManager

All Known Implementing Classes:

AbstractHintLayout, AbstractLayout, BlockFlowLayout, BorderLayout, DelegatingLayout, FlowContainerLayout, FlowFigureLayout, FlowLayout, FreeformLayout, GridLayout, InlineFlowLayout, 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