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IlvHiLoOpenCloseChartDisplayer Class Reference

Class for high-low open-close displayers. More...

#include <ilviews/charts/hilo.h>

Inheritance diagram for IlvHiLoOpenCloseChartDisplayer:
IlvCompositeChartDisplayer IlvAbstractChartDisplayer IlvValueInterface

Public Member Functions

 IlvHiLoOpenCloseChartDisplayer (IlvDim width=IlvChartDisplayerWidth, IlvPalette *hiLoRisePal=0, IlvPalette *openCloseRisePal=0, IlvPalette *hiLoFallPal=0, IlvPalette *openCloseFallPal=0, IlvChartDisplayerFactory *factory=0)
 Constructor. More...
 
IlvHiLoChartDisplayergetHiLoDisplayer () const
 Returns the child displayer that displays the low-values and high-values data sets. More...
 
IlvHiLoChartDisplayergetOpenCloseDisplayer () const
 Returns the child displayer that displays the open-values and close-values data sets. More...
 
IlUInt getWidthPercent () const
 Returns the width percentage of the high-low items. More...
 
void setHiLoFallPalette (IlvPalette *pal)
 Sets the fall palette used to display the low-values and high-values data sets. More...
 
void setHiLoRisePalette (IlvPalette *pal)
 Sets the rise palette used to display the low-values and high-values data sets. More...
 
void setOpenCloseFallPalette (IlvPalette *pal)
 Sets the fall palette used to display the open-values and close-values data sets. More...
 
void setOpenCloseRisePalette (IlvPalette *pal)
 Sets the rise palette used to display the open-values and close-values data sets. More...
 
void setWidthPercent (IlUInt width)
 Sets the width percentage of the high-low items. More...
 
virtual IlBoolean useVirtualDataSets () const
 Indicates whether the current displayer uses virtual data sets. More...
 
- Public Member Functions inherited from IlvCompositeChartDisplayer
virtual ~IlvCompositeChartDisplayer ()
 Destructor. More...
 
void addDisplayer (IlvAbstractChartDisplayer *displayer, IlUInt position=IlvLastPositionIndex)
 Adds a displayer to the current displayer. More...
 
virtual IlBoolean boundingBox (IlvRect &bbox, const IlvTransformer *t=0) const
 Returns the bounding box of the graphical representation of data. More...
 
virtual IlBoolean dataPointBBox (IlUInt dataPtIdx, IlvRect &bbox, IlBoolean takeInfoIntoAccount, const IlvTransformer *t=0) const
 Returns the bounding box of the graphical representation of the data points at a given index. More...
 
virtual void draw (IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
 Draws the graphical representation of data. More...
 
virtual void drawDataPoint (IlUInt dataPtIdx, IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
 Draws the graphical representation of the data point(s) at a given index. More...
 
virtual void drawDataPoints (IlUInt iMin, IlUInt iMax, IlvPort *dst, const IlvTransformer *t=0, const IlvRegion *clip=0) const
 Draws the graphical representation of the data points between a given interval. More...
 
virtual void drawFill (IlBoolean b)
 Sets the filling mode of the displayer. More...
 
virtual void drawLegendItem (IlvPort *dst, const IlvRect &legendArea, IlvPalette *itemPal, const IlvRegion *clip, IlAny clientData=0) const
 Draws the graphic part of a legend item associated with the current displayer. More...
 
virtual IlvColorgetBackground (IlUInt index=0) const
 Returns the background color of a palette used by the current displayer to display data. More...
 
virtual void getClipArea (IlvRect &area, const IlvTransformer *t) const
 Returns the clipping region that is used for the drawing. More...
 
IlvAbstractChartDisplayergetDisplayer (IlUInt index) const
 Returns one of the displayers that compose the current displayer. More...
 
IlvChartDisplayerFactorygetDisplayerFactory () const
 Returns the displayer factory that has been set on the current displayer. More...
 
virtual IlvAbstractChartDisplayergetDisplayerForDataSet (const IlvChartDataSet *dataSet) const
 Returns the child displayer used to display a given data set. More...
 
IlvAbstractChartDisplayergetDisplayerModel () const
 Returns the model that is used for child displayers. More...
 
virtual IlUInt getDisplayersCount () const
 Returns the number of displayers. More...
 
virtual IlUInt getDisplayItem (IlvChartDataSet *&dataSet, const IlvPoint &viewPoint, const IlvTransformer *t) const
 Returns the item to which a view point corresponds. More...
 
virtual IlBoolean getDisplayPoint (const IlvChartDataSet *dataSet, IlUInt dataPtIdx, IlvPoint &point, const IlvTransformer *t=0) const
 Returns the corresponding screen point for a data point. More...
 
virtual IlvColorgetForeground (IlUInt index=0) const
 Returns the foreground color of a palette used by the current displayer to display data. More...
 
virtual const char * getInternalLegendText (IlUInt index=0) const
 Returns the legend text stored in the current displayer. More...
 
virtual const char * getLegendText (IlUInt index=0) const
 Returns the text that will be used in a legend for the current displayer. More...
 
virtual IlUInt getNearestPoint (IlvChartDataSet *&dataSet, const IlvPoint &viewPoint, IlvDim distance, IlvPoint &point, const IlvTransformer *t=0) const
 Returns the nearest data point. More...
 
virtual IlvPalettegetPalette (IlUInt index=0) const
 Returns a palette used by the current displayer to display data. More...
 
virtual IlvPointInfoCollectiongetPointInfoCollection (const IlvChartDataSet *dataSet) const
 Returns the point information collection defined to be used to display a given data set. More...
 
virtual IlBoolean graphicalRepresentationByDataPoint () const
 Indicates whether there is a graphical representation by data point. More...
 
virtual IlBoolean isContinuous () const
 Indicates whether the graphical representation is continuous. More...
 
virtual IlBoolean isFilled () const
 Indicates whether the graphical representation is filled. More...
 
virtual IlBoolean isViewable () const
 Indicates whether the graphical representation can be viewed. More...
 
IlvAbstractChartDisplayerremoveDisplayer (IlUInt index)
 Removes one of the displayers that compose the current displayer. More...
 
virtual void setBackground (IlvColor *color, IlUInt index=0)
 Sets the background color of a palette used by the current displayer to display data. More...
 
virtual void setChartGraphic (IlvChartGraphic *chart)
 Sets the chart graphic which uses the current displayer. More...
 
virtual IlBoolean setDataPoint (IlvChartDataSet *dataSet, IlUInt dataPtIdx, const IlvPoint &point, const IlvTransformer *t=0) const
 Sets the corresponding data point from a screen point. More...
 
IlvChartDisplayerFactorysetDisplayerFactory (IlvChartDisplayerFactory *factory, IlBoolean reCreate=IlFalse)
 Sets the displayer factory that will be used by the current displayer. More...
 
IlvAbstractChartDisplayersetDisplayerModel (IlvAbstractChartDisplayer *model)
 Sets the model that will be used when creating child displayers. More...
 
virtual void setForeground (IlvColor *color, IlUInt index=0)
 Sets the foreground color of a palette used by the current displayer to display data. More...
 
virtual void setLegendItems (IlvChartLegend *legend) const
 Sets the legend items associated with the current displayer. More...
 
virtual void setLegendText (const char *text, IlUInt index=0)
 Sets the text that will be used in a legend for the current displayer. More...
 
virtual void setMode (IlvDrawMode mode)
 Sets the drawing mode. More...
 
virtual void setOrdinateInfo (IlvCoordinateInfo *ordinateInfo)
 Sets the coordinate information associated with the ordinate scale considered to display data. More...
 
virtual void setOverwrite (IlBoolean o)
 Sets the overwrite mode. More...
 
virtual void setPalette (IlvPalette *pal, IlUInt index=0)
 Sets a palette used by the current displayer to display data. More...
 
virtual void setPointInfoCollection (const IlvChartDataSet *dataSet, IlvPointInfoCollection *ptInfoCollection)
 Sets the point information collection that will be used to display a given data set. More...
 
virtual void write (IlvOutputFile &file) const
 Writes the attributes of the current object in a file. More...
 
- Public Member Functions inherited from IlvAbstractChartDisplayer
virtual ~IlvAbstractChartDisplayer ()
 Destructor. More...
 
void addDataSet (IlvChartDataSet *dataSet)
 Adds a real data set to be displayed by the current displayer. More...
 
virtual IlBoolean canBeProjectedIfOutOfBounds () const
 Indicates whether the graphical representation can be projected when it is out-of-bounds. More...
 
virtual IlvAbstractChartDisplayercopy () const =0
 Virtual copy constructor. More...
 
IlBoolean dataPointToDisplay (const IlvDoublePoint &dataPoint, IlvPoint &point, const IlvTransformer *t=0) const
 Projects a data point into screen coordinates. More...
 
virtual IlBoolean displayDataSet (const IlvChartDataSet *dataSet) const
 Indicates whether the current displayer displays a data set. More...
 
IlBoolean displayToDataPoint (const IlvPoint &point, IlvDoublePoint &dataPoint, const IlvTransformer *t=0) const
 Inversely projects a screen point to retrieve the corresponding data point. More...
 
IlvChartGraphicgetChartGraphic () const
 Returns the chart graphic which uses the current displayer. More...
 
IlvChartDataSetgetDataSet (IlUInt index=0) const
 Returns a data set used by the current displayer. More...
 
IlUInt getDataSetsCount () const
 Returns the number of data sets used by the current displayer. More...
 
IlUInt getMaxDataSetsCount () const
 Returns the maximum number of real data sets that the current displayer is allowed to display. More...
 
const char * getName () const
 Returns the name of the current displayer. More...
 
IlvCoordinateInfogetOrdinateInfo () const
 Deprecated Returns the coordinate information associated with the ordinate scale considered to display data. More...
 
const IlvCompositeChartDisplayergetParentDisplayer () const
 Returns the parent displayer. More...
 
virtual IlvChartDataPointInfogetPointInfo (IlUInt dataPtIdx, const IlvChartDataSet *dataSet=0) const
 Returns the point information associated with a given data point. More...
 
virtual IlvPalettegetProjectedPointsPalette () const
 Returns the palette used to display out-of-bounds values. More...
 
IlvChartDataSetgetRealDataSet (IlUInt index=0) const
 Returns a real data set to be displayed by the current displayer. More...
 
IlUInt getRealDataSetsCount () const
 Returns the number of real data sets. More...
 
virtual IlvCombinedChartDataSetgetVirtualDataSet (const IlvChartDataSet *dataSet, IlUInt &index) const
 Returns a virtual data set used by the current displayer. More...
 
virtual void insertDataSet (IlvChartDataSet *dataSet, IlUInt index=IlvLastPositionIndex)
 Inserts a real data set to be displayed by the current displayer. More...
 
IlBoolean isVisible () const
 Indicates whether the graphical representation is visible. More...
 
virtual void removeDataSet (IlvChartDataSet *dataSet)
 Removes a real data set from the data sets to be displayed by the current displayer. More...
 
virtual void removeDataSets ()
 Removes all the real data sets to be displayed by the current displayer.
 
void removePointInfoCollection (const IlvChartDataSet *dataSet)
 Removes the point information collection defined to be used to display a given data set. More...
 
virtual IlBoolean replaceDataSet (IlvChartDataSet *oldDataSet, IlvChartDataSet *newDataSet)
 Replaces a real data set with another one. More...
 
IlvOutputFilesave (IlvOutputFile &file) const
 Writes a complete description of the current object in a file. More...
 
virtual void setDataSet (IlvChartDataSet *dataSet, IlUInt index=0)
 Sets a real data set to be displayed by the current displayer. More...
 
void setDataSet (IlvChartDataSet *dataSet, IlvPalette *palette, IlUInt index=0)
 Sets a real data set to be displayed by the current displayer. More...
 
virtual void setDataSets (IlUInt count, IlvChartDataSet *const *dataSets)
 Sets the real data sets to be displayed by the current displayer. More...
 
void setName (const char *name)
 Sets the name of the current displayer. More...
 
void setParentDisplayer (const IlvCompositeChartDisplayer *displayer)
 Sets the parent displayer. More...
 
void setVirtualDataSet (IlvCombinedChartDataSet *vDataSet, IlUInt index=0)
 Sets a virtual data set used by the current displayer. More...
 
void setVisible (IlBoolean visible)
 Specifies whether the graphical representation is visible. More...
 

Protected Member Functions

virtual IlvAbstractChartDisplayercreateDisplayer (IlUInt index, IlvPalette *palette=0)
 Defines the child displayers that will be created by default to compose the current displayer. More...
 
virtual void updateDisplayers ()
 Updates the displayers that compose the current displayer. More...
 
- Protected Member Functions inherited from IlvCompositeChartDisplayer
 IlvCompositeChartDisplayer (IlvChartDisplayerFactory *factory=0)
 Constructor. More...
 
 IlvCompositeChartDisplayer (IlvInputFile &file)
 Constructor. More...
 
 IlvCompositeChartDisplayer (const IlvCompositeChartDisplayer &displayer)
 Constructor. More...
 
void initDisplayers (IlUInt count, IlvPalette *const *palettes=0)
 Creates the displayers that compose the current displayer. More...
 
virtual IlvAbstractChartDisplayermakeDisplayer (IlUInt idx, IlvPalette *pal=0)
 Creates one of the displayers that compose the current displayer. More...
 
virtual void update ()
 Performs the updates needed when modifications (removing, adding, replacing) are made to the real data sets.
 
- Protected Member Functions inherited from IlvAbstractChartDisplayer
 IlvAbstractChartDisplayer ()
 Constructor. More...
 
 IlvAbstractChartDisplayer (const IlvAbstractChartDisplayer &displayer)
 Constructor. More...
 
 IlvAbstractChartDisplayer (IlvInputFile &file)
 Constructor. More...
 
virtual void dataSetAdded (IlUInt position=IlvLastPositionIndex)
 Performs the updates needed when a real data set is added. More...
 
virtual void dataSetRemoved (IlUInt index)
 Performs the updates needed when a real data set is removed. More...
 
virtual void updateVirtualDataSets ()
 Updates the virtual data sets. More...
 

Additional Inherited Members

- Static Public Member Functions inherited from IlvAbstractChartDisplayer
static IlvAbstractChartDisplayerLoad (IlvInputFile &file)
 Reads a displayer object from a file. More...
 

Detailed Description

Class for high-low open-close displayers.

Library: ilvcharts

This class is a subclass of IlvCompositeChartDisplayer which allows you to represent data with both high-low items composed of segments and high-low items that are bars.

The high-low open-close displayer is a composite displayer that is composed of a high-low displayer (see the IlvHiLoChartDisplayer class) and a high-low bar displayer (see the IlvHiLoBarChartDisplayer class).

The high-low open-close displayer displays four data sets. The first data set is composed of the low values, the second data set is composed of the high values, the third data set is composed of the open values, and the fourth data set is composed of the close values. The first two data sets are displayed by the first child displayer that is a high-low displayer (instance of the IlvHiLoChartDisplayer class). The next two data sets are displayed by the second child displayer that is a high-low bar displayer (instance of the IlvHiLoBarChartDisplayer class).

This displayer can be used with any type of projection. (See the IlvAbstractProjector class for more details.)

The following images show data sets represented with a high-low open-close displayer in a Cartesian chart (on the left) and a polar chart (on the right).

See also
IlvCompositeChartDisplayer, IlvHiLoChartDisplayer, IlvHiLoBarChartDisplayer.

Constructor & Destructor Documentation

IlvHiLoOpenCloseChartDisplayer::IlvHiLoOpenCloseChartDisplayer ( IlvDim  width = IlvChartDisplayerWidth,
IlvPalette hiLoRisePal = 0,
IlvPalette openCloseRisePal = 0,
IlvPalette hiLoFallPal = 0,
IlvPalette openCloseFallPal = 0,
IlvChartDisplayerFactory factory = 0 
)

Constructor.

Initializes a new IlvHiLoOpenCloseChartDisplayer object. The constructor creates the child displayers that compose the current composite displayer by calling the IlvCompositeChartDisplayer::initDisplayers method. The child displayers that are created by default are: a high-low displayer instance of the IlvHiLoChartDisplayer class and a high-low bar displayer instance of the IlvHiLoBarChartDisplayer class. However, the constructor allows you to specify if desired the displayer factory that will be used to create the child displayers. All the displayers inherited from the IlvHiLoChartDisplayer class can be used as child displayers for the current composite displayer.

Parameters
widthThe width of the high-low items for the child displayers.
hiLoRisePalThe rise palette used to display the low-values and high-values data sets.
openCloseRisePalThe rise palette used to display the open-values and close-values data sets.
hiLoFallPalThe fall palette used to display the low-values and high-values data sets.
openCloseFallPalThe fall palette used to display the open-values and close-values data sets.
factoryAn optional factory to create the child displayers.
See also
IlvChartDisplayerFactory, IlvCompositeChartDisplayer::setDisplayerFactory.

Member Function Documentation

virtual IlvAbstractChartDisplayer* IlvHiLoOpenCloseChartDisplayer::createDisplayer ( IlUInt  index,
IlvPalette palette = 0 
)
protectedvirtual

Defines the child displayers that will be created by default to compose the current displayer.

This method creates an instance of IlvHiLoChartDisplayer if index is equal to 0 and an instance of IlvHiLoBarChartDisplayer if index is equal to 1. (See the IlvCompositeChartDisplayer::createDisplayer method for more details).

Parameters
indexThe index at which the created displayer will be added later to the collection of displayers that compose the current displayer.
paletteThe palette that will be used by the new displayer.

Reimplemented from IlvCompositeChartDisplayer.

IlvHiLoChartDisplayer* IlvHiLoOpenCloseChartDisplayer::getHiLoDisplayer ( ) const

Returns the child displayer that displays the low-values and high-values data sets.

Returns
A pointer to the child displayer that displays the low-values and high-values data sets.
IlvHiLoChartDisplayer* IlvHiLoOpenCloseChartDisplayer::getOpenCloseDisplayer ( ) const

Returns the child displayer that displays the open-values and close-values data sets.

Returns
A pointer to the child displayer that displays the open-values and close-values data sets.
IlUInt IlvHiLoOpenCloseChartDisplayer::getWidthPercent ( ) const

Returns the width percentage of the high-low items.

Returns
The width percentage of the high-low items.
void IlvHiLoOpenCloseChartDisplayer::setHiLoFallPalette ( IlvPalette pal)

Sets the fall palette used to display the low-values and high-values data sets.

The old palette, if one exists, is unlocked and the new palette is locked.

Parameters
palThe new fall palette that is used to display the low-values and high-values data sets.
void IlvHiLoOpenCloseChartDisplayer::setHiLoRisePalette ( IlvPalette pal)

Sets the rise palette used to display the low-values and high-values data sets.

The old palette, if one exists, is unlocked and the new palette is locked.

Parameters
palThe new rise palette that is used to display the low-values and high-values data sets.
void IlvHiLoOpenCloseChartDisplayer::setOpenCloseFallPalette ( IlvPalette pal)

Sets the fall palette used to display the open-values and close-values data sets.

The old palette, if one exists, is unlocked and the new palette is locked.

Parameters
palThe new fall palette that is used to display the open-values and close-values data sets.
void IlvHiLoOpenCloseChartDisplayer::setOpenCloseRisePalette ( IlvPalette pal)

Sets the rise palette used to display the open-values and close-values data sets.

The old palette, if one exists, is unlocked and the new palette is locked.

Parameters
palThe new rise palette that is used to display the open-values and close-values data sets.
void IlvHiLoOpenCloseChartDisplayer::setWidthPercent ( IlUInt  width)

Sets the width percentage of the high-low items.

The width of the high-low items will be computed as a percentage of the available space between two abscissa points. Therefore, the items width will grow along if the chart is enlarged or if the visible range is reduced.

Parameters
widthThe width percentage, between 0 and 100 .
virtual void IlvHiLoOpenCloseChartDisplayer::updateDisplayers ( )
protectedvirtual

Updates the displayers that compose the current displayer.

This method sets the data sets used by the current displayer (that is the low-values, the high-values, the open-values and the close-values data sets) on the child displayers that compose the current displayer (that is the high-low and the high-low bar displayers).

See the IlvCompositeChartDisplayer::updateDisplayers method for more details.

Reimplemented from IlvCompositeChartDisplayer.

virtual IlBoolean IlvHiLoOpenCloseChartDisplayer::useVirtualDataSets ( ) const
virtual

Indicates whether the current displayer uses virtual data sets.

Returns a Boolean that indicates whether the current displayer uses virtual data sets.

Returns
IlFalse by default.

Reimplemented from IlvAbstractChartDisplayer.


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