Abstract base class for combined data sets. More...

#include <ilviews/charts/data.h>

Inheritance diagram for IlvCombinedChartDataSet:

Public Member Functions
void	addDataSet (IlvChartDataSet *dataSet)
	Adds a component data set to the combined data set. More...

virtual IlUInt	getDataCount () const
	Returns the number of considered data points. More...

IlvChartDataSet *	getDataSet (IlUInt index=0) const
	Returns a component data set of the combined data set. More...

IlUInt	getDataSetIndex (const IlvChartDataSet *dataSet) const
	Returns the index of a component data set in the combined data set. More...

IlUInt	getDataSetsCount () const
	Returns the number of component data sets. More...

virtual IlUInt	getIndexInCombined (const IlvChartDataSet *dataSet, IlUInt indexInDataSet) const
	Maps a point index in a component data set to an index in the combined data set. More...

virtual IlUInt	getIndexInDataSet (IlvChartDataSet *&dataSet, IlUInt indexInCombined) const
	Maps a point index in the current combined data set to an index in a component data set. More...

virtual const IlvCoordInterval &	getXRange () const
	Returns the abscissa bounding values of the managed data. More...

virtual const IlvCoordInterval &	getYRange () const
	Returns the ordinate bounding values of the managed data. More...

virtual void	insertDataSet (IlvChartDataSet *dataSet, IlUInt index=0)
	Inserts a component data set into a combined data set. More...

virtual IlBoolean	isIncreasingOnX () const
	Indicates whether the managed data items have increasing abscissa values. More...

virtual void	removeDataSet (IlUInt index=0)
	Removes a component data set from the combined data set. More...

void	removeDataSets ()
	Removes all the component data sets from the combined data set. More...

virtual IlBoolean	retrieveDataSetPoint (IlvChartDataSet *&dataSet, IlUInt ptidx, const IlvDoublePoint &point, IlUInt &dataSetPointIndex, IlvDoublePoint &dataSetPoint) const =0
	Retrieves from a data point of the current combined data set the corresponding data point of a component data set. More...

virtual void	setDataCount (IlUInt count)
	Sets the number of considered data points from the number of data items considered in the component data sets. More...

virtual void	setDataSet (IlvChartDataSet *dataSet, IlUInt index=0)
	Sets a component data set of the combined data set. More...

virtual IlBoolean	setPoint (IlUInt ptidx, const IlvDoublePoint &point)
	Propagates the change made to a given data point of the combined data set to the component data sets. More...

virtual void	updateDataCount ()
	Updates the number of considered data points. More...

virtual IlBoolean	useDataSet (const IlvChartDataSet *dataSet) const
	Indicates whether a data set is one of the data sets that make up the combined data set. More...

virtual void	write (IlvOutputFile &) const
	Writes the attributes of the current object in a file. More...

Public Member Functions inherited from IlvChartDataSet
virtual	~IlvChartDataSet ()
	Destructor. More...

void	addListener (IlvChartDataSetListener *listener)
	Adds a listener. More...

IlBoolean	addPoint (const IlvDoublePoint &point, IlvChartDataPointInfo *pointInfo=0, IlBoolean copyPointInfo=IlFalse)
	Adds a represented data point (and its associated point information object if any). More...

IlBoolean	areListenersEnabled () const
	Indicates whether the listeners are enabled. More...

virtual IlvChartDataSet *	copy () const =0
	Creates and returns a copy of the current object. More...

virtual void	dataAllPointsRemoved ()
	Performs the necessary updates when all data points are removed. More...

virtual void	dataPointAdded (IlUInt position)
	Performs the necessary updates when a new data point is added. More...

virtual void	dataPointChanged (IlUInt ptidx, IlBoolean beforeChange)
	Performs the necessary updates when a data point is changed. More...

virtual void	dataPointRemoved (IlUInt ptidx)
	Performs the necessary updates when a data point is removed. More...

void	enableListeners (IlBoolean b)
	Specifies whether the listeners should be enabled. More...

virtual void	endBatch ()
	Specifies the end of a set of modifications. More...

IlUInt	getAddMaxIdx () const
	Returns the maximum index of the data points that have been added between the first call of the `startBatch()` method and the last call of the `endBatch()` method. More...

IlUInt	getAddMinIdx () const
	Returns the minimum index of the data points that have been added between the first call of the `startBatch()` method and the last call of the `endBatch()` method. More...

void	getBoundingValues (IlvCoordInterval &xRange, IlvCoordInterval &yRange) const
	Returns the bounding values of the managed data. More...

IlvChartDataSetListener const	getListeners (IlUInt &count) const
	Returns all the listeners. More...

IlUInt	getMaxCount () const
	Returns the maximum number of data items that can be managed. More...

const char *	getName () const
	Returns the name of the current data set. More...

virtual void	getPoint (IlUInt i, IlvDoublePoint &point) const =0
	Returns a represented data point. More...

IlvChartDataPointInfo *	getPointInfo (IlUInt ptidx) const
	Returns the point information associated with a data item. More...

IlvPointInfoCollection *	getPointInfoCollection () const
	Returns the object used to manage the point information. More...

IlUInt	getPointInfoCount () const
	Returns the number of defined point information items. More...

IlvDoublePoint *	getPoints (IlUInt &count) const
	Returns all the represented data points. More...

virtual IlvDoublePoint *	getPointsBetween (IlUInt indexMin, IlUInt indexMax, IlUInt &count) const
	Returns some of the data points represented by the current data set. More...

virtual IlvDoublePoint *	getPointsInRange (IlUInt &count, IlUInt *&dataPointIndexes, const IlvCoordInterval &xRange, const IlvCoordInterval &yRange, IlBoolean needContinuity) const
	Returns a range of data points represented by the current data set. More...

virtual IlBoolean	insertPoint (const IlvDoublePoint &point, IlUInt ptidx, IlvChartDataPointInfo *pointInfo=0, IlBoolean copyPointInfo=IlFalse)
	Inserts a represented data point (and its associated point information object if any). More...

virtual IlBoolean	insertPoints (IlUInt count, const IlvDoublePoint points, IlUInt position=IlvLastPositionIndex, IlvChartDataPointInfo const *pInfos=0, IlBoolean copyPointInfo=IlFalse)
	Inserts several represented data points (and their associated point information objects if any). More...

IlBoolean	isLimited () const
	Indicates whether the number of managed data items is limited. More...

virtual IlBoolean	isRemovalAllowed () const
	Indicates whether managed data can be removed. More...

virtual IlBoolean	isWritable () const
	Indicates whether managed data can be modified. More...

void	lock ()
	Locks the current `IlvChartDataSet` object. More...

void	removeAllPointInfo ()
	Removes all the defined point information. More...

virtual void	removeAllPoints ()
	Removes all the represented data points (and their associated point information objects if any). More...

IlvChartDataSetListener *	removeListener (IlvChartDataSetListener *l)
	Removes a listener. More...

void	removeListeners ()
	Removes all the listeners.

virtual IlBoolean	removePointAndInfo (IlUInt ptidx)
	Removes a represented data point (and its associated point information object if any). More...

IlBoolean	removePointInfo (IlUInt ptidx)
	Removes the point information associated with a data item. More...

virtual void	removePointsAndInfo ()
	Removes all the represented data points (and their associated point information objects if any). More...

IlvOutputFile &	save (IlvOutputFile &file) const
	Writes a complete description of the current object in a file. More...

void	setMaxCount (IlUInt maxCount)
	Sets the maximum number of managed data items. More...

void	setName (const char *name)
	Sets the name of the current data set. More...

IlBoolean	setPointInfo (IlUInt ptidx, IlvChartDataPointInfo *pointInfo, IlBoolean copyPointInfo=IlFalse)
	Sets the point information associated with a data item. More...

void	setPointInfoCollection (IlvPointInfoCollection *ptic)
	Sets the object used to manage the point information. More...

virtual void	startBatch ()
	Specifies the beginning of a set of modifications. More...

void	unLock ()
	Unlocks the current `IlvChartDataSet` object. More...

Protected Member Functions
	IlvCombinedChartDataSet ()
	Initializes a new `IlvCombinedChartDataSet` object.

	IlvCombinedChartDataSet (const IlvCombinedChartDataSet &dataSet)
	Initializes a new `IlvCombinedChartDataSet` object as a copy of another `IlvCombinedChartDataSet`. More...

	IlvCombinedChartDataSet (IlvInputFile &file)
	Initializes a new `IlvCombinedChartDataSet` object from an input file. More...

Protected Member Functions inherited from IlvChartDataSet
	IlvChartDataSet (const char name=0, IlvPointInfoCollection pointInfoCollection=0)
	Initializes a new `IlvChartDataSet` object. More...

	IlvChartDataSet (const IlvChartDataSet &dataSet)
	Initializes a new `IlvChartDataSet` object as a copy of another `IlvChartDataSet`. More...

	IlvChartDataSet (IlvInputFile &file)
	Initializes a new `IlvChartDataSet` object from an input file. More...

void	computeBoundingValues ()
	Computes the bounding values of the managed data. More...

virtual void	computeMinMaxValues (IlvCoordInterval &xRange, IlvCoordInterval &yRange) const
	Computes the abscissa and ordinate bounding values of the managed data. More...

Additional Inherited Members
Static Public Member Functions inherited from IlvChartDataSet
static IlvChartDataSet *	Load (IlvInputFile &file)
	Reads a data set object from a file. More...

Detailed Description

Abstract base class for combined data sets.

Library: ilvcharts

This is an abstract subclass of IlvChartDataSet that allows you to define a data set that is a combination of other data sets. For example, you can define a data set as the addition of any number of other data sets.

These data sets that make up the combined data set are called component data sets. The nth data point of such a combined data set will correspond to the sum of the nth data points of all the component data sets.

The data points of the combined data set are not stored. They are computed from the component data sets whenever needed.

Note: IlvCombinedChartDataSet is an abstract class. Its constructors are defined as protected since it is not possible to create an instance of this class directly.

See also: IlvChartDataSet, IlvAbstractChartData.

Constructor & Destructor Documentation

◆ IlvCombinedChartDataSet() [1/2]

IlvCombinedChartDataSet::IlvCombinedChartDataSet ( IlvInputFile & file )

protected

Initializes a new IlvCombinedChartDataSet object from an input file.

Parameters

file	The file that is read to initialize the new data set.

◆ IlvCombinedChartDataSet() [2/2]

IlvCombinedChartDataSet::IlvCombinedChartDataSet ( const IlvCombinedChartDataSet & dataSet )

protected

Initializes a new IlvCombinedChartDataSet object as a copy of another IlvCombinedChartDataSet.

Initializes a new IlvCombinedChartDataSet object that is a copy of dataSet.

Parameters

dataSet The data set that is copied to initialize the new data set.

Member Function Documentation

◆ addDataSet()

void IlvCombinedChartDataSet::addDataSet ( IlvChartDataSet * dataSet )

Adds a component data set to the combined data set.

A listener is added to the new data set so that the number of data items considered in the data sets that make up the combined data set can be updated when the data of this new data set are modified.

Note: The number of data items considered in the data sets that make up the combined data set is updated by using the IlvCombinedChartDataSet::updateDataCount() method.

Parameters

dataSet The new data set that is added to the combined data set.

◆ getDataCount()

virtual IlUInt IlvCombinedChartDataSet::getDataCount ( ) const

virtual

Returns the number of considered data points.

Returns: The number of data points considered for the current combined data set.

Note: The considered data points are not stored. They are computed on the fly whenever needed from the data points of the component data sets.

Implements IlvChartDataSet.

◆ getDataSet()

IlvChartDataSet* IlvCombinedChartDataSet::getDataSet ( IlUInt index = 0 ) const

Returns a component data set of the combined data set.

Parameters

index The index of the data set that is returned.

Returns: A pointer to the data set at the index index (if it exists) in the collection of data sets that make up the combined data set and 0 otherwise.

◆ getDataSetIndex()

IlUInt IlvCombinedChartDataSet::getDataSetIndex ( const IlvChartDataSet * dataSet ) const

Returns the index of a component data set in the combined data set.

Parameters

dataSet The component data set for which we want to get the index.

Returns: The index of the data set dataSet in the combined data set if dataSet is one of the data sets that make up the current combined data set. Otherwise, it returns IlvBadIndex.

◆ getDataSetsCount()

IlUInt IlvCombinedChartDataSet::getDataSetsCount ( ) const

Returns the number of component data sets.

Returns: The number of data sets that make up the combined data set.

◆ getIndexInCombined()

virtual IlUInt IlvCombinedChartDataSet::getIndexInCombined	(	const IlvChartDataSet *	dataSet,
		IlUInt	indexInDataSet
	)		const

virtual

Maps a point index in a component data set to an index in the combined data set.

Maps the point index indexInDataSet in the data set dataSet to an index in the current combined data set.

Parameters

dataSet	The data set considered in the combined data set.
indexInDataSet	The index of the data point in the data set dataSet.

Note: The default implementation returns the same index.

Reimplemented in IlvPieChartDataSet, and IlvHiLoChartDataSet.

◆ getIndexInDataSet()

virtual IlUInt IlvCombinedChartDataSet::getIndexInDataSet	(	IlvChartDataSet *&	dataSet,
		IlUInt	indexInCombined
	)		const

virtual

Maps a point index in the current combined data set to an index in a component data set.

Maps the point index indexInCombined in the current combined data set to an index in the corresponding data set among the data sets that make up the current combined data set.

Parameters

dataSet	This parameter is set to the corresponding data set in the combined data set.
indexInCombined	The index of the point in the combined data set.

Note: The default implementation returns the same index and set dataSet as the first data set in the combined data set.

Reimplemented in IlvPieChartDataSet, and IlvHiLoChartDataSet.

◆ getXRange()

virtual const IlvCoordInterval& IlvCombinedChartDataSet::getXRange ( ) const

virtual

Returns the abscissa bounding values of the managed data.

Returns: The defined interval for the abscissa of the data managed by the current data set.

Reimplemented from IlvChartDataSet.

◆ getYRange()

virtual const IlvCoordInterval& IlvCombinedChartDataSet::getYRange ( ) const

virtual

Returns the ordinate bounding values of the managed data.

Returns: The defined interval for the ordinate of the data managed by the current data set.

Reimplemented from IlvChartDataSet.

◆ insertDataSet()

virtual void IlvCombinedChartDataSet::insertDataSet	(	IlvChartDataSet *	dataSet,
		IlUInt	index = `0`
	)

virtual

Inserts a component data set into a combined data set.

A listener is added to the new inserted data set so that the number of data items considered in the data sets that make up the combined data set can be updated when the data of this new data set are modified.

Note: The number of data items considered in the data sets that make up the combined data set is updated using the IlvCombinedChartDataSet::updateDataCount() method.

Parameters

dataSet	The new data set that is inserted in the combined data set.
index	The index at which the new data set is inserted.

◆ isIncreasingOnX()

virtual IlBoolean IlvCombinedChartDataSet::isIncreasingOnX ( ) const

virtual

Indicates whether the managed data items have increasing abscissa values.

Returns: IlTrue if all the data sets that make up the current combined data set have an abscissa that increases or stays the same. Otherwise, it returns IlFalse.

Reimplemented from IlvChartDataSet.

◆ removeDataSet()

virtual void IlvCombinedChartDataSet::removeDataSet ( IlUInt index = 0 )

virtual

Removes a component data set from the combined data set.

Note: The number of data items considered in the data sets that make up the combined data set is updated by using the IlvCombinedChartDataSet::updateDataCount() method.

Parameters

index The index at which the data set is removed.

◆ removeDataSets()

void IlvCombinedChartDataSet::removeDataSets ( )

Removes all the component data sets from the combined data set.

Note: The number of data items considered in the data sets that make up the combined data set is updated by using the IlvCombinedChartDataSet::updateDataCount() method. The data count is set to the minimum number of data items in the data sets that make up the combined data set.

◆ retrieveDataSetPoint()

virtual IlBoolean IlvCombinedChartDataSet::retrieveDataSetPoint	(	IlvChartDataSet *&	dataSet,
		IlUInt	ptidx,
		const IlvDoublePoint &	point,
		IlUInt &	dataSetPointIndex,
		IlvDoublePoint &	dataSetPoint
	)		const

pure virtual

Retrieves from a data point of the current combined data set the corresponding data point of a component data set.

Note: If no data set is specified (dataSet is equal to 0), dataSet is set to a default data set which is one of the data sets that make up the current combined data set.

Parameters

dataSet	The component data set for which we want to retrieve a data point. This data set is one of the data sets that make up the current combined data set.
ptidx	The index of the data point of the current combined data set from which we want to retrieve the corresponding point in dataSet.
point	The point of the current combined data set from which we want to retrieve the corresponding point in dataSet.
dataSetPointIndex	The index of the retrieved point in the data set dataSet.
dataSetPoint	The retrieved point in the data set dataSet.

Returns: IlTrue if the data point has been successfully retrieved and IlFalse otherwise.

Implemented in IlvPieChartDataSet, IlvHiLoChartDataSet, IlvStacked100ChartDataSet, and IlvAddChartDataSet.

◆ setDataCount()

virtual void IlvCombinedChartDataSet::setDataCount ( IlUInt count )

virtual

Sets the number of considered data points from the number of data items considered in the component data sets.

Sets the number of data points considered for the current combined data set. This number is set to the number of data points that can be computed from the component data sets when count data items are considered in each component data set.

Parameters

count The number of data items considered in the data sets that make up the combined data set.

Reimplemented in IlvPieChartDataSet, and IlvHiLoChartDataSet.

◆ setDataSet()

virtual void IlvCombinedChartDataSet::setDataSet	(	IlvChartDataSet *	dataSet,
		IlUInt	index = `0`
	)

virtual

Sets a component data set of the combined data set.

If a data set already exists at the index index, it is replaced by the new one. Otherwise, the new data set is added at the end of the collection of data sets by a call to the IlvCombinedChartDataSet::addDataSet() method.

Note: The number of data considered in the data sets that make up the combined data set is updated by using the IlvCombinedChartDataSet::updateDataCount() method.

Parameters

dataSet	The new data set that is set within the combined data set.
index	The index at which the new data set is set in the collection of data sets that make up the current data set.

◆ setPoint()

virtual IlBoolean IlvCombinedChartDataSet::setPoint	(	IlUInt	ptidx,
		const IlvDoublePoint &	point
	)

virtual

Propagates the change made to a given data point of the combined data set to the component data sets.

Parameters

ptidx	The index of the point of the current combined data set that is changed.
point	The new value of the point of index ptidx for the current combined data set.

Returns: IlTrue if the propagation has been successfully performed and IlFalse otherwise.

Reimplemented from IlvChartDataSet.

◆ updateDataCount()

virtual void IlvCombinedChartDataSet::updateDataCount ( )

virtual

Updates the number of considered data points.

Note: The considered data points are usually not stored. They are computed on the fly whenever needed from the data points of the component data sets.

The default implementation first computes the minimum number of data items in all the data sets that make up the combined data set, then calls the IlvCombinedChartDataSet::setDataCount() method by passing this minimum number as a parameter.

◆ useDataSet()

virtual IlBoolean IlvCombinedChartDataSet::useDataSet ( const IlvChartDataSet * dataSet ) const

virtual

Indicates whether a data set is one of the data sets that make up the combined data set.

Parameters

dataSet The data set for which we want to know if it is one of the data sets that make up the current combined data set.

Returns: IlTrue if the data set dataSet is one of the data sets that make up the current combined data set and IlFalse otherwise.

Reimplemented from IlvChartDataSet.

◆ write()

virtual void IlvCombinedChartDataSet::write ( IlvOutputFile & file ) const

virtual

Writes the attributes of the current object in a file.

Called by the IlvChartDataSet::save() method. This method can be overloaded in subclasses that define new attributes. The information written by the write() method is read by the IO constructor, which takes an IlvInputFile as its only argument. Both this method and the IO constructor can be automatically declared by using the DeclareChartDataSetTypeInfo macro within the class declaration.

Parameters

file	The file where the attributes of the current object are written.

Reimplemented from IlvChartDataSet.

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ IlvCombinedChartDataSet() [1/2]

◆ IlvCombinedChartDataSet() [2/2]

Member Function Documentation

◆ addDataSet()

◆ getDataCount()

◆ getDataSet()

◆ getDataSetIndex()

◆ getDataSetsCount()

◆ getIndexInCombined()

◆ getIndexInDataSet()

◆ getXRange()

◆ getYRange()

◆ insertDataSet()

◆ isIncreasingOnX()

◆ removeDataSet()

◆ removeDataSets()

◆ retrieveDataSetPoint()

◆ setDataCount()

◆ setDataSet()

◆ setPoint()

◆ updateDataCount()

◆ useDataSet()

◆ write()