com.dlsc.flexgantt.policy.dateline
Interface IZoomPolicy<T extends IGranularity>

Type Parameters:

T - the type of the granularity (e.g. TimeGranularity, SimpleGranularity)

All Superinterfaces:

IPolicy

All Known Implementing Classes:

AbstractZoomPolicy, SimpleGranularityZoomPolicy, TimeGranularityZoomPolicy

public interface IZoomPolicy<T extends IGranularity>
extends IPolicy

A policy interface used in the context of the Dateline. The model uses the policy to determine which time granularities will be available for the user for zoom in and zoom out operations.

Since:

1.0

Author:

Dirk Lemmermann

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.

Method Detail

getGranularityCount

int getGranularityCount()

Returns the number of supported granularities.

Returns:

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

Since:

1.0

getGranularity

T getGranularity(int index)

Returns the granularity with the given index.

Parameters:

index - the index for which to return a granularity

Returns:

the granularity with the given index

Since:

1.0

getGranularityIndex

int getGranularityIndex(T granularity)

Returns the index of the given granularity.

Parameters:

granularity - the granularity for which to return an index

Returns:

the granularity index

Since:

1.0