KChart::LineAttributes Class Reference

#include <KChartLineAttributes.h>

Public Types
enum	MissingValuesPolicy { MissingValuesAreBridged, MissingValuesHideSegments, MissingValuesShownAsZero, MissingValuesPolicyIgnored }

Public Member Functions
	LineAttributes (const LineAttributes &)
int	areaBoundingDataset () const
bool	displayArea () const
bool	isVisible () const
MissingValuesPolicy	missingValuesPolicy () const
bool	operator!= (const LineAttributes &other) const
LineAttributes &	operator= (const LineAttributes &)
bool	operator== (const LineAttributes &) const
void	setAreaBoundingDataset (int dataset)
void	setDisplayArea (bool display)
void	setMissingValuesPolicy (MissingValuesPolicy policy)
void	setTransparency (uint alpha)
void	setVisible (bool visible)
uint	transparency () const

Detailed Description

Set of attributes for changing the appearance of line charts.

Definition at line 31 of file KChartLineAttributes.h.

Member Enumeration Documentation

enum KChart::LineAttributes::MissingValuesPolicy

MissingValuesPolicy specifies how a missing value will be shown in a line diagram.

Missing value is assumed if the data cell contains a QVariant that can not be interpreted as a qreal, or if the data cell is hidden while its dataset is not hidden.

• MissingValuesAreBridged the default: No markers will be shown for missing values but the line will be bridged if there is at least one valid cell before and after the missing value(s), otherwise the segment will be hidden.
• MissingValuesHideSegments Line segments starting with a missing value will not be shown, and no markers will be shown for missing values, so this will look like a piece of the line is missing.
• MissingValuesShownAsZero Missing value(s) will be treated like normal zero values, and markers will shown for them too, so there will be no visible difference between a zero value and a missing value.
• MissingValuesPolicyIgnored (internal value, do not use)

Definition at line 52 of file KChartLineAttributes.h.

Member Function Documentation

void LineAttributes::setAreaBoundingDataset

(

int

dataset

)

Sets the lower or upper (depending on the displayed value being positive or negative, resp.) bounding line (i.e., the dataset with the line data).

The area is then drawn between this line and the line of the specified dataset. Pass -1 to draw the area between this line and the zero line.

Definition at line 123 of file KChartLineAttributes.cpp.

void LineAttributes::setVisible

(

bool

visible

)

Determines if lines are to be drawn or not.

This property does not effect visibility of markers and text labels.

This is useful for e.g. bubble charts where you need circular markers but want no connecting lines to be drawn.

By default lines are drawn, i.e. this property is true.

Definition at line 133 of file KChartLineAttributes.cpp.

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The documentation for this class was generated from the following files:

• KChartLineAttributes.h
• KChartLineAttributes.cpp