com.dlsc.flexgantt.policy.dateline
Class AbstractZoomPolicy<T extends IGranularity>

java.lang.Object
  com.dlsc.flexgantt.policy.AbstractPolicy
      com.dlsc.flexgantt.policy.dateline.AbstractZoomPolicy<T>

Type Parameters:

T - the type of the granularities

All Implemented Interfaces:

IZoomPolicy<T>, IPolicy

Direct Known Subclasses:

SimpleGranularityZoomPolicy, TimeGranularityZoomPolicy

public abstract class AbstractZoomPolicy<T extends IGranularity>
extends AbstractPolicy
implements IZoomPolicy<T>

An abstract zoom policy implementation, which allows to specify a list of supported granularities. The type of the granularities gets specified by the subclasses.

Since:

1.0

Author:

Dirk Lemmermann

Constructor Summary

protected

AbstractZoomPolicy(T[] granularities) Constructs a new zoom policy.

Method Summary

T	getGranularity(int index) Returns the granularity with the given index.
int	getGranularityCount() Returns the number of supported granularities.
int	getGranularityIndex(T granularity) Returns the index of the given granularity.
void	setGranularities(T[] granularities) Sets the list of supported granularities.

Methods inherited from class com.dlsc.flexgantt.policy.AbstractPolicy

assertClass

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractZoomPolicy

protected AbstractZoomPolicy(T[] granularities)

Constructs a new zoom policy.

Parameters:

granularities - the granularities that are supported by the zoom policy

Since:

1.0

Method Detail

setGranularities

public void setGranularities(T[] granularities)

Sets the list of supported granularities.

Parameters:

granularities - the list of supported granularities (granularities that will be shown in the dateline)

Since:

1.0

getGranularity

public T getGranularity(int index)

Description copied from interface: IZoomPolicy

Returns the granularity with the given index.

Specified by:

getGranularity in interface IZoomPolicy<T extends IGranularity>

Parameters:

index - the index for which to return a granularity

Returns:

the granularity with the given index

getGranularityCount

public int getGranularityCount()

Description copied from interface: IZoomPolicy

Returns the number of supported granularities.

Specified by:

getGranularityCount in interface IZoomPolicy<T extends IGranularity>

Returns:

the list of supported granularities (granularities that will be shown in the dateline)

getGranularityIndex

public int getGranularityIndex(T granularity)

Description copied from interface: IZoomPolicy

Returns the index of the given granularity.

Specified by:

getGranularityIndex in interface IZoomPolicy<T extends IGranularity>

Parameters:

granularity - the granularity for which to return an index

Returns:

the granularity index