org.eclipse.ui.forms.widgets
Class LayoutCache
java.lang.Object
org.eclipse.ui.forms.widgets.LayoutCache
-
public class LayoutCache
- extends
Object
Caches the preferred sizes of an array of controls
-
Since:
- 3.0
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Constructor Summary
|
LayoutCache
()
Creates an empty layout cache |
LayoutCache
(
Control[] controls)
Creates a cache for the given array of controls |
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Method Summary
|
Point
|
computeSize
(int controlIndex,
int widthHint,
int heightHint)
Computes the preferred size of the nth control |
void
|
flush
()
Flushes the cache. |
void
|
flush
(int controlIndex)
Flushes the cache for the given control. |
SizeCache
|
getCache
(int idx)
Returns the size cache for the given control |
void
|
setControls
(
Control[] controls)
Sets the controls that are being cached here. |
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Methods inherited from class java.lang.
Object
|
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait
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LayoutCache
public LayoutCache()
- Creates an empty layout cache
LayoutCache
public LayoutCache(
Control[] controls)
- Creates a cache for the given array of controls
-
Parameters:
-
controls -
getCache
public
SizeCache getCache(int idx)
- Returns the size cache for the given control
-
-
Parameters:
-
idx -
-
Returns:
- the size cache for the given control
setControls
public void setControls(
Control[] controls)
- Sets the controls that are being cached here. If these are the same
controls that were used last time, this method does nothing. Otherwise,
the cache is flushed and a new cache is created for the new controls.
-
-
Parameters:
-
controls -
computeSize
public
Point computeSize(int controlIndex,
int widthHint,
int heightHint)
- Computes the preferred size of the nth control
-
-
Parameters:
-
controlIndex - index of the control whose size will be computed -
widthHint - width of the control (or SWT.DEFAULT if unknown) -
heightHint - height of the control (or SWT.DEFAULT if unknown)
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Returns:
- the preferred size of the control
flush
public void flush(int controlIndex)
- Flushes the cache for the given control. This should be called if exactly
one of the controls has changed but the remaining controls remain unmodified
-
-
Parameters:
-
controlIndex -
flush
public void flush()
- Flushes the cache.
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Guidelines for using Eclipse APIs.
Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.
