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Charts Package API Reference Guide
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IlvPointInfoSingleton Class Reference

Stores a unique IlvChartDataPointInfo instance. More...

#include <ilviews/charts/data.h>

Inheritance diagram for IlvPointInfoSingleton:
IlvPointInfoCollection

Public Member Functions

 IlvPointInfoSingleton (IlvChartDataPointInfo *singleton=0)
 Constructor. More...
 
virtual IlvChartDataPointInfogetInfoForPoint (IlUInt ptidx) const
 Returns the point information for a given data point. More...
 
virtual IlvChartDataPointInfogetPointInfo (IlUInt idx) const
 Returns the point information at a given index. More...
 
virtual IlUInt getPointInfoCount () const
 Returns the number of point information objects managed by this object. More...
 
IlvChartDataPointInfogetSingleton () const
 Returns the unique point information object. More...
 
virtual void removeAllPointInfo ()
 Removes all point information. More...
 
virtual IlBoolean removePointInfo (IlUInt ptidx)
 Does nothing. More...
 
virtual void setPointInfo (IlUInt ptidx, IlvChartDataPointInfo *ptInfo, IlBoolean copy=IlFalse)
 Does nothing. More...
 
void setSingleton (IlvChartDataPointInfo *singleton)
 Sets the unique point information object. More...
 
- Public Member Functions inherited from IlvPointInfoCollection
virtual IlvPointInfoCollectioncopy () const =0
 Virtual copy constructor. More...
 
void lock ()
 Locks the current IlvPointInfoCollection object. More...
 
IlvOutputFilesave (IlvOutputFile &file) const
 Writes a complete description of the current object in a file. More...
 
void unLock ()
 Unlocks the current IlvPointInfoCollection object. More...
 
virtual void write (IlvOutputFile &file) const =0
 Writes the attributes of the current object in a file. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from IlvPointInfoCollection
static IlvPointInfoCollectionLoad (IlvInputFile &file)
 Reads a point information collection object from a file. More...
 
- Protected Member Functions inherited from IlvPointInfoCollection
 IlvPointInfoCollection ()
 Constructor. More...
 
 IlvPointInfoCollection (const IlvPointInfoCollection &pointInfo)
 Constructor. More...
 
 IlvPointInfoCollection (IlvInputFile &file)
 Constructor. More...
 

Detailed Description

Stores a unique IlvChartDataPointInfo instance.

Library: ilvcharts

This class is a subclass of IlvPointInfoCollection that associates all data points of a given data set with a unique IlvChartDataPointInfo instance.

See also
IlvPointInfoCollection, IlvChartDataPointInfo.

Constructor & Destructor Documentation

IlvPointInfoSingleton::IlvPointInfoSingleton ( IlvChartDataPointInfo singleton = 0)

Constructor.

Initializes a new IlvPointInfoSingleton object.

Parameters
singletonThe unique point information object associated with all the data points of the data set. This point information object is locked.

Member Function Documentation

virtual IlvChartDataPointInfo* IlvPointInfoSingleton::getInfoForPoint ( IlUInt  pidx) const
virtual

Returns the point information for a given data point.

Parameters
pidxThe index of the data point with which the returned point information is associated.
Returns
A pointer to the point information associated with the data point at the index pidx in the data set with which the current object is associated. The returned point information should not be deleted since it is maintained internally.

Implements IlvPointInfoCollection.

virtual IlvChartDataPointInfo* IlvPointInfoSingleton::getPointInfo ( IlUInt  idx) const
virtual

Returns the point information at a given index.

Parameters
idxThe index of the returned point information.
Returns
A pointer to the point information at the index idx in the collection of point information objects managed by the current object. The returned point information stores graphical information for a data point of the data set with which the current object is associated. This point information should not be deleted since it is maintained internally.

Implements IlvPointInfoCollection.

virtual IlUInt IlvPointInfoSingleton::getPointInfoCount ( ) const
virtual

Returns the number of point information objects managed by this object.

Returns
The number of point information objects managed by this object.

Implements IlvPointInfoCollection.

IlvChartDataPointInfo* IlvPointInfoSingleton::getSingleton ( ) const

Returns the unique point information object.

Returns
The point information object associated with all the data points of the data set.
virtual void IlvPointInfoSingleton::removeAllPointInfo ( )
virtual

Removes all point information.

Removes all the point information objects that are managed by the current object.

Note
When you remove a point information object, the point information object is not deleted but unlocked (that is, the IlvChartDataPointInfo::unLock() method is called). It will be deleted only when no more objects reference it (see the IlvChartDataPointInfo::unLock() method).

Implements IlvPointInfoCollection.

virtual IlBoolean IlvPointInfoSingleton::removePointInfo ( IlUInt  ptidx)
virtual

Does nothing.

This method does nothing and returns IlFalse as the point information object is shared by all the data points of the data set.

Implements IlvPointInfoCollection.

virtual void IlvPointInfoSingleton::setPointInfo ( IlUInt  ptidx,
IlvChartDataPointInfo ptInfo,
IlBoolean  copy = IlFalse 
)
virtual

Does nothing.

This method does nothing as the information object is shared by all the data points of the data set. Use the IlvPointInfoSingleton::setSingleton() method instead.

Implements IlvPointInfoCollection.

void IlvPointInfoSingleton::setSingleton ( IlvChartDataPointInfo singleton)

Sets the unique point information object.

The point information object singleton is locked and the previous point information object is unlocked.

Parameters
singletonThe new point information object.

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