KDChart::AbstractGrid Class Reference

#include <KDChartAbstractGrid.h>

Inheritance diagram for KDChart::AbstractGrid:

Collaboration diagram for KDChart::AbstractGrid:

Public Member Functions
virtual	~AbstractGrid ()
virtual void	drawGrid (PaintContext *context)=0
void	setNeedRecalculate ()
DataDimensionsList	updateData (AbstractCoordinatePlane *plane)
	Returns the cached result of data calculation.

Static Public Member Functions
static const DataDimension	adjustedLowerUpperRange (const DataDimension &dim, bool adjustLower, bool adjustUpper)
static void	adjustLowerUpperRange (qreal &start, qreal &end, qreal stepWidth, bool adjustLower, bool adjustUpper)
static bool	isBoundariesValid (const DataDimensionsList &l)
static bool	isBoundariesValid (const QPair< QPointF, QPointF > &b)
static bool	isBoundariesValid (const QRectF &r)
static bool	isValueValid (const qreal &r)

Public Attributes
GridAttributes	gridAttributes

Protected Member Functions
	AbstractGrid ()

Protected Attributes
DataDimensionsList	mDataDimensions
AbstractCoordinatePlane *	mPlane = nullptr

Detailed Description

Definition at line 34 of file KDChartAbstractGrid.h.

Constructor & Destructor Documentation

~AbstractGrid()

AbstractGrid::~AbstractGrid ( )

virtual

Definition at line 31 of file KDChartAbstractGrid.cpp.

AbstractGrid()

AbstractGrid::AbstractGrid ( )

protected

Definition at line 26 of file KDChartAbstractGrid.cpp.

Member Function Documentation

adjustedLowerUpperRange()

const DataDimension AbstractGrid::adjustedLowerUpperRange ( const DataDimension &  dim, bool  adjustLower, bool  adjustUpper  )

static

Adjusts dim so that dim.start and/or dim.end are a multiple of dim.stepWidth.

See also

adjustLowerUpperRange

Definition at line 92 of file KDChartAbstractGrid.cpp.

References adjustLowerUpperRange(), KDChart::DataDimension::end, KDChart::DataDimension::start, and KDChart::DataDimension::stepWidth.

adjustLowerUpperRange()

void AbstractGrid::adjustLowerUpperRange ( qreal &  start, qreal &  end, qreal  stepWidth, bool  adjustLower, bool  adjustUpper  )

static

Adjusts start and/or end so that they are a multiple of stepWidth

Definition at line 79 of file KDChartAbstractGrid.cpp.

References _trunc().

Referenced by adjustedLowerUpperRange(), calculateSteps(), calculateSteps(), and KDChart::CartesianGrid::drawGrid().

drawGrid()

virtual void KDChart::AbstractGrid::drawGrid ( PaintContext *  context )

pure virtual

Doing the actual drawing.

Every derived class must implement this.

Note

When implementing drawGrid(): Before you start drawing, make sure to call updateData(), to get the data boundaries recalculated. For an example, see the implementation of CartesianGrid:drawGrid().

Implemented in KDChart::CartesianGrid, KDChart::LeveyJenningsGrid, KDChart::PolarGrid, KDChart::RadarGrid, and KDChart::TernaryGrid.

isBoundariesValid() [1/3]

bool AbstractGrid::isBoundariesValid ( const DataDimensionsList &  l )

static

Checks whether all start and end properties of every DataDimension in the list l are valid according to isValueValid().

See also

isValueValid

Definition at line 66 of file KDChartAbstractGrid.cpp.

References QList::at(), isValueValid(), and QList::size().

isBoundariesValid() [2/3]

bool AbstractGrid::isBoundariesValid ( const QPair< QPointF, QPointF > &  b )

static

Checks whether both coordinates of both points are valid according to isValueValid

See also

isValueValid

Definition at line 61 of file KDChartAbstractGrid.cpp.

References isValueValid().

isBoundariesValid() [3/3]

bool AbstractGrid::isBoundariesValid ( const QRectF &  r )

static

Checks whether both coordinates of r are valid according to isValueValid

See also

isValueValid

Definition at line 56 of file KDChartAbstractGrid.cpp.

References QRectF::bottomRight(), isBoundariesValid(), and QRectF::topLeft().

Referenced by KDChart::CartesianGrid::drawGrid(), KDChart::LeveyJenningsGrid::drawGrid(), isBoundariesValid(), KDChart::BarDiagram::paint(), KDChart::LeveyJenningsDiagram::paint(), KDChart::LineDiagram::paint(), and KDChart::Plotter::paint().

isValueValid()

bool AbstractGrid::isValueValid ( const qreal &  r )

static

Checks if r is neither NaN nor infinity.

Definition at line 74 of file KDChartAbstractGrid.cpp.

Referenced by isBoundariesValid(), and isBoundariesValid().

setNeedRecalculate()

void AbstractGrid::setNeedRecalculate

(

)

Causes grid to be recalculated upon the next call of updateData().

See also

calculateGrid

Definition at line 36 of file KDChartAbstractGrid.cpp.

References QList::clear().

updateData()

DataDimensionsList AbstractGrid::updateData

(

AbstractCoordinatePlane *

plane

)

Returns the cached result of data calculation.

For this, all derived classes need to implement the pure-virtual calculateGrid() method.

Definition at line 41 of file KDChartAbstractGrid.cpp.

References QList::empty(), KDChart::AbstractCoordinatePlane::getDataDimensionsList(), mDataDimensions, and mPlane.

Referenced by KDChart::CartesianGrid::drawGrid(), and KDChart::LeveyJenningsGrid::drawGrid().

Member Data Documentation

gridAttributes

GridAttributes KDChart::AbstractGrid::gridAttributes

Definition at line 119 of file KDChartAbstractGrid.h.

mDataDimensions

DataDimensionsList KDChart::AbstractGrid::mDataDimensions

protected

Definition at line 122 of file KDChartAbstractGrid.h.

Referenced by KDChart::CartesianGrid::drawGrid(), KDChart::LeveyJenningsGrid::drawGrid(), and updateData().

mPlane

AbstractCoordinatePlane* KDChart::AbstractGrid::mPlane = nullptr

protected

Definition at line 123 of file KDChartAbstractGrid.h.

Referenced by KDChart::LeveyJenningsGrid::drawGrid(), and updateData().

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

• KDChartAbstractGrid.h
• KDChartAbstractGrid.cpp