Scaled item class. More...

#include <scaleditem.h>

Inheritance diagram for ScaledItem:

[legend]

Public Member Functions
	ScaledItem ()
	Constructor.

	ScaledItem (const ScaledItem &a)
	Copy constructor.

	ScaledItem (const KConfigGroup plo, Symbol symbol, unsigned color, QGraphicsItem parent)
	Constructor.

	ScaledItem (FillStyle fillStyle, Symbol symbol, unsigned color, double fx, double fy, double xOffset, double yOffset, double relSize, QGraphicsItem *parent)
	Constructor.

virtual	~ScaledItem ()
	Destructor.

unsigned	color () const
	Returns color.

FillStyle	fillStyle () const
	Returns fill style.

bool	isNormalized (double fx, double fy) const
	Checks if both normalization factors are equal to given values.

void	normalize (double fx, double fy)
	Sets normalization factors.

double	normX () const
	Returns normalization factor for x values.

double	normY () const
	Returns normalization factor for y values.

QPixmap	pixmap () const
	Returns decoration pixmap for item list.

void	readPlo (const KConfigGroup *plo, Symbol symbol, unsigned color)
	Initializes corresponding to plot file.

void	setColor (unsigned color)
	Sets color.

void	setFillStyle (FillStyle style)
	Sets fill style.

void	setNormX (double fx)
	Sets normalization factor for x values.

void	setNormY (double fy)
	Sets normalization factor for y values.

void	setProperties (const QTransform &m)
	Sets properties according to transformation matrix.

void	setSize ()
	Sets size according to transformation matrix.

void	setSymbol (Symbol symbol)
	Sets symbol type.

void	setXOffset (double xOffset)
	Sets offset for x values.

void	setYOffset (double yOffset)
	Sets offset for y values.

Symbol	symbol () const
	Returns symbol type.

void	update ()
	Applies changes and forces redrawing.

void	updateGeometry ()
	Updates geometry.

void	writePlo (KConfigGroup *plo, bool visible) const
	Writes into plot file.

double	xOffset () const
	Returns offset for x values.

double	yOffset () const
	Returns offset for y values.

Public Member Functions inherited from KplItem
	KplItem (double relSize=1)
	Constructor.

	KplItem (const KplItem &a)
	Copy constructor.

	KplItem (const KConfigGroup *plo)
	Constructor.

virtual	~KplItem ()
	Destructor.

void	readPlo (const KConfigGroup *plo)
	Initializes corresponding to plot file.

double	relSize () const
	Returns relative size of item.

void	setRelSize (double relSize)
	Sets relative size of item.

void	writePlo (KConfigGroup *plo, bool visible=true) const
	Writes into plot file.

Static Public Member Functions
static void	exponent (double a, int &iExp, double &f)
	Calculates normalization factor.

static bool	limits (double &xMin, double &xMax, const double *values, int n)
	Calculates minimum and maximum values of an array.

Static Public Member Functions inherited from KplItem
static QUrl	absoluteUrl (const QString &path, const QUrl &urlPlo)
	Constructs absolute file URL.

static QBrush	createBrush (unsigned color, FillStyle fillStyle=NoBrush)
	Creates brush.

static QPen	createPen (double width, unsigned color, PenType penType, Symbol symbol)
	Creates pen.

static void	paintSymbol (QPainter *painter, const QRectF &rect, Symbol symbol=OpenCircle)
	Paints symbol.

static QPixmap	pixmap (Symbol symbol)
	Returns black decoration pixmap of plot symbol for use in dialog GUI.

static QPixmap	pixmap (QPen pen, Symbol symbol=SolidLine)
	Returns decoration pixmap of plot symbol for use in item lists.

static QString	path (const QUrl &urlPlo, const QUrl &url, bool absolute=false)
	Constructs absolute or (if possible) relative file path.

static void	resetDashOffset ()
	Resets offset for dashed lines.

static unsigned	rgb (const QString &color)
	Converts rgb string to QRgb.

static unsigned	rgbQt1 (unsigned rgb)
	Converts QRgb to Qt1 QRgb.

Protected Member Functions
double	length (const double x, const double y, int n) const
	Calculates line length.

void	plotArray (QPainter painter, const double x, const double *y, int n) const
	Plots array.

void	setProperties ()
	Sets properties according to transformation matrix.

Protected Member Functions inherited from KplItem
QPen &	changePenWidth (QPen &pen, double width) const
	Changes pen width.

QPen	createPen (QGraphicsItem *item, unsigned color=0, PenType penType=DataPen, Symbol symbol=SolidLine) const
	Creates pen for plot item.

double	penWidth (const QGraphicsItem *item, PenType penType=DataPen) const
	Calculates pen width for plot item.

Protected Attributes
FillStyle	m_fillStyle

Symbol	m_symbol

unsigned	m_color

double	m_normX

double	m_normY

double	m_xOffset

double	m_yOffset

double	dydx

double	myDashOffset

QPen	m_pen

QPainterPath	bPath

QRectF	bRect

QRectF	symbRect

QTransform	m_matrix

Protected Attributes inherited from KplItem
double	m_relSize

Additional Inherited Members
Public Types inherited from KplItem
enum	FillStyle { NoBrush , SolidPattern , HorPattern , VerPattern , CrossPattern , BDiagPattern , FDiagPattern , DiagCrossPattern }
	Fill styles. More...

enum	ItemType { Frame = 1 , Array , Function , ParFunction , Spline , Array3D , Function3D , Legend , Text , Line , Arrow , Arc , Rectangle , Ellipse , Image , ScaleBar }
	Item types. More...

enum	PenType { FramePen , GridPen , DataPen }
	Pen types. More...

enum	Symbol { Invisible = -17 , FilledOctagon , FilledHourglass , FilledTriangle , FilledSquare , FilledDiamond , FilledCircle , Umbrella , Ypsilon , Plus , Cross , OpenOctagon , OpenHourglass , OpenTriangle , OpenSquare , OpenDiamond , Dot , OpenCircle , SolidLine , DashLine1 , DashLine2 , DotLine1 , DashLine3 , DashDotLine , DashLine4 , DashLine5 , DotLine2 }
	Symbol types. More...

Static Protected Member Functions inherited from KplItem
static double	parentWidth (const QGraphicsItem *item)
	Returns width of item's parent frame or width of scene if the item has no parent item.

static double	penWidthFactor (PenType penType)
	Returns factor to calculate pen width from frame width.

Static Protected Attributes inherited from KplItem
static double	m_dashOffset

Detailed Description

Scaled item class.

Base class for array and function items.

Author: Werner Stille

Constructor & Destructor Documentation

◆ ScaledItem() [1/3]

ScaledItem::ScaledItem ( const ScaledItem & a )

Copy constructor.

Parameters

a	source item.

◆ ScaledItem() [2/3]

ScaledItem::ScaledItem	(	const KConfigGroup *	plo,
		Symbol	symbol,
		unsigned	color,
		QGraphicsItem *	parent )

Constructor.

Initializes corresponding to plot file.

Parameters

plo	pointer to KConfigGroup object containing item data.
symbol	default symbol type.
color	default color.
parent	pointer to parent item.

◆ ScaledItem() [3/3]

ScaledItem::ScaledItem	(	FillStyle	fillStyle,
		Symbol	symbol,
		unsigned	color,
		double	fx,
		double	fy,
		double	xOffset,
		double	yOffset,
		double	relSize,
		QGraphicsItem *	parent )

Constructor.

Initializes corresponding to arguments.

Parameters

fillStyle	fill style.
symbol	symbol type.
color	color.
fx	normalization factor for x values.
fy	normalization factor for y values.
xOffset	offset for x values.
yOffset	offset for x values.
relSize	relative size.
parent	pointer to parent item.

Member Function Documentation

◆ exponent()

static void ScaledItem::exponent	(	double	a,
		int &	iExp,
		double &	f )

static

Calculates normalization factor.

Parameters

a	absolute double value.
iExp	reference to logarithm of normalization factor.
f	reference to normalization factor.

◆ isNormalized()

bool ScaledItem::isNormalized	(	double	fx,
		double	fy ) const

inline

Checks if both normalization factors are equal to given values.

Parameters

fx	normalization factor for x values.
fy	normalization factor for y values.

Returns: true when both normalization factors are equal to given values.

◆ length()

double ScaledItem::length	(	const double *	x,
		const double *	y,
		int	n ) const

protected

Calculates line length.

Parameters

x	array with x values.
y	array with y values.
n	number of values.

Returns: length in pixel units.

◆ limits()

static bool ScaledItem::limits	(	double &	xMin,
		double &	xMax,
		const double *	values,
		int	n )

static

Calculates minimum and maximum values of an array.

Parameters

xMin	reference to minimum value.
xMax	reference to maximum value.
values	double array.
n	size of array.

Returns: true for xmax > xmin.

◆ normalize()

void ScaledItem::normalize	(	double	fx,
		double	fy )

inline

Sets normalization factors.

Parameters

fx	normalization factor for x values.
fy	normalization factor for y values.

◆ plotArray()

void ScaledItem::plotArray	(	QPainter *	painter,
		const double *	x,
		const double *	y,
		int	n ) const

protected

Plots array.

Parameters

painter	pointer to QPainter object, 0 for calculating bounding box.
x	array with x values.
y	array with y values.
n	number of values.

◆ readPlo()

void ScaledItem::readPlo	(	const KConfigGroup *	plo,
		Symbol	symbol,
		unsigned	color )

Initializes corresponding to plot file.

Parameters

plo	pointer to KSimpleConfig object containing item data.
symbol	default symbol type.
color	default color.

◆ setColor()

void ScaledItem::setColor ( unsigned color )

inline

Sets color.

Parameters

color color.

◆ setFillStyle()

void ScaledItem::setFillStyle ( FillStyle style )

inline

Sets fill style.

Parameters

style fill style.

◆ setNormX()

void ScaledItem::setNormX ( double fx )

inline

Sets normalization factor for x values.

Parameters

fx	normalization factor.

◆ setNormY()

void ScaledItem::setNormY ( double fy )

inline

Sets normalization factor for y values.

Parameters

fy	normalization factor.

◆ setProperties()

void ScaledItem::setProperties ( const QTransform & m )

Sets properties according to transformation matrix.

Parameters

m	transformation matrix.

◆ setSymbol()

void ScaledItem::setSymbol ( Symbol symbol )

inline

Sets symbol type.

Parameters

symbol symbol type.

◆ setXOffset()

void ScaledItem::setXOffset ( double xOffset )

inline

Sets offset for x values.

Parameters

xOffset offset.

◆ setYOffset()

void ScaledItem::setYOffset ( double yOffset )

inline

Sets offset for y values.

Parameters

yOffset offset.

◆ writePlo()

void ScaledItem::writePlo	(	KConfigGroup *	plo,
		bool	visible ) const

Writes into plot file.

Parameters

plo	KConfigGroup object.
visible	true for visible item.

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

scaleditem.h

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ScaledItem() [1/3]

◆ ScaledItem() [2/3]

◆ ScaledItem() [3/3]

Member Function Documentation

◆ exponent()

◆ isNormalized()

◆ length()

◆ limits()

◆ normalize()

◆ plotArray()

◆ readPlo()

◆ setColor()

◆ setFillStyle()

◆ setNormX()

◆ setNormY()

◆ setProperties()

◆ setSymbol()

◆ setXOffset()

◆ setYOffset()

◆ writePlo()