LineItem Class Reference

Line item class. More...

#include <lineitem.h>

Inheritance diagram for LineItem:

Public Types
enum	{ Type = UserType + Line }
	Specific QGraphicsItem type number for function type() More...
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...

Public Member Functions
	LineItem (double x0=0, double y0=0, unsigned color=0, QGraphicsItem *parent=nullptr, double length=1, bool visible=true, Symbol symbol=SolidLine, double relSize=1, double dir=0)
	Constructor.
	LineItem (const LineItem &a)
	Copy constructor.
	LineItem (const KConfigGroup *plo, unsigned color=0, QGraphicsItem *parent=nullptr)
	Constructor.
virtual	~LineItem ()
	Destructor.
QPixmap	pixmap () const
	Returns decoration pixmap for item list.
void	setDashOffset ()
	Sets offset for dashed lines.
void	setPenWidth ()
	Sets pen width.
void	setProperties (const QTransform &m)
	Sets properties according to transformation matrix.
void	setSymbol (Symbol symbol)
	Sets line type.
Symbol	symbol () const
	Returns line type.
virtual int	type () const override
	Returns specific QGraphicsItem type number.
void	update ()
	Applies changes and forces redrawing.
void	writePlo (KConfigGroup *plo) const
	Writes into plot file.
Public Member Functions inherited from VectorItem
	VectorItem (unsigned color=0, double x0=0, double y0=0, double length=1, double dir=0, double relSize=1)
	Constructor.
	VectorItem (const KConfigGroup *plo, unsigned color=0)
	Constructor.
virtual	~VectorItem ()
	Destructor.
double	dir () const
	Returns rotation angle in deg.
double	length () const
	Returns length in cm.
void	setDir (double dir)
	Sets rotation angle.
void	setLength (double length)
	Sets length.
void	writePlo (KConfigGroup *plo, bool visible) const
	Writes into plot file.
Public Member Functions inherited from DecoItem
	DecoItem (unsigned color=0, double x0=0, double y0=0, double relSize=1)
	Constructor.
	DecoItem (const KConfigGroup *plo, unsigned color=0)
	Constructor.
virtual	~DecoItem ()
	Destructor.
unsigned	color () const
	Returns color.
void	setColor (unsigned color)
	Sets color.
void	setX0 (double x0)
	Sets x position.
void	setY0 (double y0)
	Sets y position.
void	updatePos (const QPointF &p, bool absolute=true)
	Updates position.
void	writePlo (KConfigGroup *plo, bool visible) const
	Writes into plot file.
double	x0 () const
	Returns x position in cm.
double	y0 () const
	Returns y position in cm.
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.

Protected Member Functions
virtual void	mouseReleaseEvent (QGraphicsSceneMouseEvent *event) override
	Updates position.
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
double	myDashOffset
Symbol	m_symbol
Protected Attributes inherited from VectorItem
double	m_length
double	m_dir
Protected Attributes inherited from DecoItem
unsigned	m_color
double	m_x0
double	m_y0
QTransform	m_matrix
Protected Attributes inherited from KplItem
double	m_relSize

Additional Inherited Members
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.
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

Line item class.

Class for line decoration items.

Author

Werner Stille

Member Enumeration Documentation

anonymous enum

anonymous enum

Specific QGraphicsItem type number for function type()

Enumerator
Type	Specific QGraphicsItem type number of LineItem for function type().

Constructor & Destructor Documentation

LineItem() [1/3]

LineItem::LineItem	(	double	x0 = 0,
		double	y0 = 0,
		unsigned	color = 0,
		QGraphicsItem *	parent = nullptr,
		double	length = 1,
		bool	visible = true,
		Symbol	symbol = SolidLine,
		double	relSize = 1,
		double	dir = 0 )

Constructor.

Initializes corresponding to arguments.

Parameters

x0	x start position in cm.
y0	y start position in cm.
color	color for line.
parent	pointer to parent item.
length	length in cm.
visible	true for visible item.
symbol	line type.
relSize	relative line width.
dir	direction in degree.

LineItem() [2/3]

LineItem::LineItem

(

const LineItem &

a

)

Copy constructor.

Parameters

a	source item.

LineItem() [3/3]

LineItem::LineItem	(	const KConfigGroup *	plo,
		unsigned	color = 0,
		QGraphicsItem *	parent = nullptr )

Constructor.

Initializes corresponding to plot file.

Parameters

plo	pointer to KSimpleConfig object containing item data.
color	default color for line.
parent	pointer to parent item.

Member Function Documentation

setProperties()

void LineItem::setProperties

(

const QTransform &

m

)

Sets properties according to transformation matrix.

Parameters

m	transformation matrix.

setSymbol()

void LineItem::setSymbol ( Symbol symbol )

inline

Sets line type.

Parameters

symbol

line type.

writePlo()

void LineItem::writePlo

(

KConfigGroup *

plo

)

const

Writes into plot file.

Parameters

plo	KConfigGroup object.

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

• lineitem.h