org.eclipse.draw2d
Class AbstractLayout
java.lang.Object
org.eclipse.draw2d.AbstractLayout
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All Implemented Interfaces:
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LayoutManager
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Direct Known Subclasses:
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AbstractHintLayout,
DelegatingLayout,
GridLayout,
ScrollBarLayout,
XYLayout
- public abstract class AbstractLayout
- extends java.lang.Object
- implements
LayoutManager
Provides generic support for LayoutManagers.
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Method Summary
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protected void
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calculatePreferredSize
(
IFigure container)
This method is now
calculatePreferredSize(IFigure, int, int). |
protected abstract
Dimension
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calculatePreferredSize
(
IFigure container,
int wHint,
int hHint)
Calculates the preferred size of the given figure, using width and height hints. |
protected
Dimension
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getBorderPreferredSize
(
IFigure container)
Returns the preferred size of the figure's border. |
java.lang.Object
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getConstraint
(
IFigure child)
Returns the constraint for the given figure. |
void
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getMinimumSize
(
IFigure container)
This method is now
getMinimumSize(IFigure, int, int). |
Dimension
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getMinimumSize
(
IFigure container,
int wHint,
int hHint)
Returns the minimum size of the given figure. |
void
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getPreferredSize
(
IFigure container)
This method is now
getPreferredSize(IFigure, int, int). |
Dimension
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getPreferredSize
(
IFigure container,
int wHint,
int hHint)
Returns the preferred size of the given figure, using width and height hints. |
void
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invalidate
()
Tells the LayoutManager to throw away all cached information about the figures it is
responsible for. |
protected void
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invalidate
(
IFigure child)
Removes any cached information about the given figure. |
boolean
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isObservingVisibility
()
Returns whether or not this layout pays attention to visiblity when calculating its
bounds. |
void
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remove
(
IFigure child)
Removes the given figure from this LayoutManager's list of figures. |
void
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setConstraint
(
IFigure child,
java.lang.Object constraint)
Sets the constraint for the given figure. |
void
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setObserveVisibility
(boolean newValue)
Sets isObservingVisibility to the given value. |
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Methods inherited from class java.lang.Object
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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preferredSize
protected
Dimension preferredSize
- The cached preferred size.
isObservingVisibility
protected boolean isObservingVisibility
- Whether or not this layout pays attention to visiblity of figures when
calculating its bounds. By default, false.
AbstractLayout
public AbstractLayout()
calculatePreferredSize
protected final void calculatePreferredSize(
IFigure container)
- This method is now
calculatePreferredSize(IFigure, int, int).
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-
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Parameters:
-
container - the figure
calculatePreferredSize
protected abstract
Dimension calculatePreferredSize(
IFigure container,
int wHint,
int hHint)
- Calculates the preferred size of the given figure, using width and height hints.
-
-
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Parameters:
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container - The figure -
wHint - The width hint -
hHint - The height hint
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Returns:
- The preferred size
getBorderPreferredSize
protected
Dimension getBorderPreferredSize(
IFigure container)
- Returns the preferred size of the figure's border.
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-
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Parameters:
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container - The figure that the border is on
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Returns:
- The border's preferred size
getConstraint
public java.lang.Object getConstraint(
IFigure child)
- Returns the constraint for the given figure.
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Specified by:
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getConstraint
in interface
LayoutManager
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Parameters:
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child - The figure
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Returns:
- The constraint
getMinimumSize
public final void getMinimumSize(
IFigure container)
- This method is now
getMinimumSize(IFigure, int, int).
-
-
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Parameters:
-
container - the figure
getMinimumSize
public
Dimension getMinimumSize(
IFigure container,
int wHint,
int hHint)
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Description copied from interface:
LayoutManager
- Returns the minimum size of the given figure.
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Specified by:
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getMinimumSize
in interface
LayoutManager
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Parameters:
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container - The Figure -
wHint - the width hint -
hHint - the height hint
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Returns:
- The minimum size
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See Also:
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LayoutManager.getMinimumSize(IFigure, int, int)
getPreferredSize
public
Dimension getPreferredSize(
IFigure container,
int wHint,
int hHint)
- Returns the preferred size of the given figure, using width and height hints. If the
preferred size is cached, that size is returned. Otherwise,
calculatePreferredSize(IFigure, int, int) is called.
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Specified by:
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getPreferredSize
in interface
LayoutManager
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Parameters:
-
container - The figure -
wHint - The width hint -
hHint - The height hint
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Returns:
- The preferred size
getPreferredSize
public final void getPreferredSize(
IFigure container)
- This method is now
getPreferredSize(IFigure, int, int).
-
-
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Parameters:
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container - the figure
invalidate
public void invalidate()
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Description copied from interface:
LayoutManager
- 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.
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Specified by:
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invalidate
in interface
LayoutManager
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See Also:
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LayoutManager.invalidate()
invalidate
protected void invalidate(
IFigure child)
- Removes any cached information about the given figure.
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-
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Parameters:
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child - the child that is invalidated
isObservingVisibility
public boolean isObservingVisibility()
- Returns whether or not this layout pays attention to visiblity when calculating its
bounds.
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-
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Returns:
- true if invisible figures should not contribute to this layout's bounds.
remove
public void remove(
IFigure child)
- Removes the given figure from this LayoutManager's list of figures.
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Specified by:
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remove
in interface
LayoutManager
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Parameters:
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child - The figure to remove
setConstraint
public void setConstraint(
IFigure child,
java.lang.Object constraint)
- Sets the constraint for the given figure.
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Specified by:
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setConstraint
in interface
LayoutManager
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Parameters:
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child - the child -
constraint - the child's new constraint
setObserveVisibility
public void setObserveVisibility(boolean newValue)
- Sets isObservingVisibility to the given value.
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Parameters:
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newValue - true if visibility should be observed
Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.
