Class HeapStatus

java.lang.Object

org.eclipse.swt.widgets.Widget

org.eclipse.swt.widgets.Control

org.eclipse.swt.widgets.Scrollable

org.eclipse.swt.widgets.Composite

org.eclipse.ui.internal.HeapStatus

All Implemented Interfaces:

Drawable

public class HeapStatus
extends Composite

The Heap Status control, which shows the heap usage statistics in the window trim.

All colors except the low-memory red and the free-memory orange derive from the control's background and foreground.

Since:

3.1

Field Summary

Fields

Modifier and Type	Field	Description
protected boolean	isInGC

Fields inherited from class Control

handle

Fields inherited from class Widget

nativeZoom

Constructor Summary

Constructors

Constructor	Description
HeapStatus(Composite parent, IPreferenceStore prefStore)	Creates a new heap status control with the given parent, and using the given preference store to obtain settings such as the refresh interval.

Method Summary

Modifier and Type	Method	Description
Point	computeSize(int wHint, int hHint, boolean changed)	Returns the preferred size (in points) of the receiver.

Methods inherited from class Composite

changed, checkSubclass, drawBackground, getBackgroundMode, getChildren, getLayout, getLayoutDeferred, getTabList, isLayoutDeferred, layout, layout, layout, layout, layout, setBackgroundMode, setFocus, setLayout, setLayoutDeferred, setTabList, toString

Methods inherited from class Scrollable

computeTrim, getClientArea, getHorizontalBar, getScrollbarsMode, getVerticalBar, setScrollbarsMode

Methods inherited from class Control

addControlListener, addDragDetectListener, addFocusListener, addGestureListener, addHelpListener, addKeyListener, addMenuDetectListener, addMouseListener, addMouseMoveListener, addMouseTrackListener, addMouseWheelListener, addPaintListener, addTouchListener, addTraverseListener, computeSize, dragDetect, dragDetect, forceFocus, getAccessible, getBackground, getBackgroundImage, getBorderWidth, getBounds, getCursor, getData, getDragDetect, getEnabled, getFont, getForeground, getLayoutData, getLocation, getMenu, getMonitor, getOrientation, getParent, getRegion, getShell, getSize, getTextDirection, getToolTipText, getTouchEnabled, getVisible, internal_dispose_GC, internal_new_GC, isEnabled, isFocusControl, isReparentable, isVisible, moveAbove, moveBelow, pack, pack, print, redraw, redraw, removeControlListener, removeDragDetectListener, removeFocusListener, removeGestureListener, removeHelpListener, removeKeyListener, removeMenuDetectListener, removeMouseListener, removeMouseMoveListener, removeMouseTrackListener, removeMouseWheelListener, removePaintListener, removeTouchListener, removeTraverseListener, requestLayout, setAutoscalingMode, setBackground, setBackgroundImage, setBounds, setBounds, setCapture, setCursor, setData, setDragDetect, setEnabled, setFont, setForeground, setLayoutData, setLocation, setLocation, setMenu, setOrientation, setParent, setRedraw, setRegion, setSize, setSize, setTextDirection, setToolTipText, setTouchEnabled, setVisible, toControl, toControl, toDisplay, toDisplay, traverse, traverse, traverse, update

Methods inherited from class Widget

addDisposeListener, addListener, addTypedListener, checkWidget, dispose, getData, getDisplay, getListeners, getStyle, getTypedListeners, isAutoDirection, isDisposed, isListening, notifyListeners, removeDisposeListener, removeListener, removeListener, removeListener, removeTypedListener, reskin, setData

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface Drawable

isAutoScalable

Field Details

isInGC

protected volatile boolean isInGC

Constructor Details

HeapStatus

public HeapStatus(Composite parent,
 IPreferenceStore prefStore)

Creates a new heap status control with the given parent, and using the given preference store to obtain settings such as the refresh interval.

Parameters:

parent - the parent composite

prefStore - the preference store

Method Details

computeSize

public Point computeSize(int wHint,
 int hHint,
 boolean changed)

Description copied from class: Control

Returns the preferred size (in points) of the receiver.

The preferred size of a control is the size that it would best be displayed at. The width hint and height hint arguments allow the caller to ask a control questions such as "Given a particular width, how high does the control need to be to show all of the contents?" To indicate that the caller does not wish to constrain a particular dimension, the constant SWT.DEFAULT is passed for the hint.

If the changed flag is true, it indicates that the receiver's contents have changed, therefore any caches that a layout manager containing the control may have been keeping need to be flushed. When the control is resized, the changed flag will be false, so layout manager caches can be retained.

Overrides:

computeSize in class Control

Parameters:

wHint - the width hint (can be SWT.DEFAULT)

hHint - the height hint (can be SWT.DEFAULT)

changed - true if the control's contents have changed, and false otherwise

Returns:

the preferred size of the control.

See Also:

• Layout
• Control.getBorderWidth()
• Control.getBounds()
• Control.getSize()
• Control.pack(boolean)
• "computeTrim, getClientArea for controls that implement them"