com.klg.jclass.util
Interface Changeable

All Known Subinterfaces:

Changeable, Changeable

All Known Implementing Classes:

ChartDataView, ChartRegion, JCChart, JCChart3d, JCChart3dArea, JCChart3dAreaJava3d, JCLegend, TrackChange, TrackChange

public interface Changeable

The Changeable interface is used as a template for objects that have a changed flag or changed semantic involving some kind of recalculation. This is very common inside JCChart. All ChartRegion and ChartInteriorRegion derived objects make use of Changeable, either by directly implementing the interface or by deriving from TrackChange (an abstract class that implements Changeable).

Field Summary

static int	BASIC_CHANGE_MASK
static int	LAYOUT
static int	NO_CHANGE
static int	NOTIFY_PARENT_LAYOUT
static int	RECALC
static int	REDRAW

Method Summary

boolean	getChanged() Gets the value of the Changed property.
boolean	getChanged(int mask) Checks the value of the ChangedFlag property for the existence of the specified mask.
boolean	isBatched()
boolean	isChanged() Gets the value of the Changed property.
boolean	isChanged(int mask) Checks the value of the ChangedFlag property for the existence of the specified mask.
void	setChanged(boolean n, int cf) Sets the value of the Changed property and updates the parent object.
void	setChanged(boolean n, int cf, boolean updateParent) Sets the value of the Changed property.

Field Detail

NO_CHANGE

public static final int NO_CHANGE

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Constant Field Values

REDRAW

public static final int REDRAW

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Constant Field Values

RECALC

public static final int RECALC

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Constant Field Values

LAYOUT

public static final int LAYOUT

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Constant Field Values

NOTIFY_PARENT_LAYOUT

public static final int NOTIFY_PARENT_LAYOUT

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Constant Field Values

BASIC_CHANGE_MASK

public static final int BASIC_CHANGE_MASK

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Constant Field Values

Method Detail

getChanged

public boolean getChanged()

Gets the value of the Changed property. The Changed property determines whether the object needs to be recalculated.

Returns:

True if the object has been changed and needs recalculation, false otherwise.

getChanged

public boolean getChanged(int mask)

Checks the value of the ChangedFlag property for the existence of the specified mask. The ChangedFlag property determines the type of action (recalc, redraw) that needs to happen to the object.

Returns:

True if the ChangedFlag contains the given mask (e.g. RECALC, REDRAW, etc.), false otherwise.

isChanged

public boolean isChanged()

Gets the value of the Changed property. The Changed property determines whether the object needs to be recalculated.

Returns:

True if the object has been changed and needs recalculation, false otherwise.

isChanged

public boolean isChanged(int mask)

Checks the value of the ChangedFlag property for the existence of the specified mask. The ChangedFlag property determines the type of action (recalc, redraw) that needs to happen to the object.

Returns:

True if the ChangedFlag contains the given mask (e.g. RECALC, REDRAW, etc.), false otherwise.

setChanged

public void setChanged(boolean n,
                       int cf)

Sets the value of the Changed property and updates the parent object. The Changed property determines whether the object needs to be recalculated.

Parameters:

n - New value for Changed.

cf - Or-ed series of bit flags indicating type of change.

setChanged

public void setChanged(boolean n,
                       int cf,
                       boolean updateParent)

Sets the value of the Changed property. The Changed property determines whether the object needs to be recalculated.

Parameters:

n - New value for Changed.

cf - Or-ed series of bit flags indicating type of change.

updateParent - If true, the parent is updated. Otherwise, the parent is not updated. The "update" semantics are up to the implementor

isBatched

public boolean isBatched()