subclass representing an empty bbox with defined width/height in the syntax tree More...

#include <jkqtmathtextwhitespacenode.h>

Inheritance diagram for JKQTMathTextEmptyBoxNode:

Collaboration diagram for JKQTMathTextEmptyBoxNode:

Public Types
enum	Units { EBUem , EBUex }

Public Member Functions
	JKQTMathTextEmptyBoxNode (JKQTMathText *parent, double width_, Units widthUnit_, double height_, Units heightUnit_)
	constructs a node

virtual	~JKQTMathTextEmptyBoxNode () override

virtual double	draw (QPainter &painter, double x, double y, JKQTMathTextEnvironment currentEv) const override
	draw the contents at the designated position

double	getHeight () const
	height of the (empty) box, units of this value defined in heightUnit

Units	getHeightUnit () const
	units to interpret height

virtual QString	getTypeName () const override
	return the name of this class as a string

double	getWidth () const
	width of the (empty) box, units of this value defined in widthUnit

Units	getWidthUnit () const
	units to interpret width

virtual bool	toHtml (QString &html, JKQTMathTextEnvironment currentEv, JKQTMathTextEnvironment defaultEv) const override
	convert node to HTML and returns `true` on success

double	Units2PixelWidth (double value, Units unit, JKQTMathTextEnvironment currentEv, QPaintDevice *pd) const
	converts Types type into its width in pixels, based on currentEv and pd

Public Member Functions inherited from JKQTMathTextNode
	JKQTMathTextNode (const JKQTMathTextNode &)=delete

	JKQTMathTextNode (JKQTMathText *parentMathText)

virtual	~JKQTMathTextNode ()

bool	getDrawBoxes () const
	returns the drawing of colored boxes (for DEBUGGING) around the actual output of the node is enabled

JKQTMathTextNode *	getParentNode ()
	parent node of this node (i.e. one level up, ode `nullptr` )

const JKQTMathTextNode *	getParentNode () const
	parent node of this node (i.e. one level up, ode `nullptr` )

JKQTMathTextNodeSize	getSize (QPainter &painter, JKQTMathTextEnvironment currentEv) const
	determine the size of the node, calls getSizeInternal() implementation of the actual type

bool	isSubSuperscriptAboveBelowNode () const
	if `true` then following sub- and/or superscripts are placed below and above the node, not besides it. This is activated when `\sum\limits_{sub}^{sup}` is used in LaTeX instead of simply `\sum_{sub}^{sup}`

JKQTMathTextNode &	operator= (const JKQTMathTextNode &)=delete

virtual void	setDrawBoxes (bool draw)
	enables the drawing of colored boxes (for DEBUGGING) around the actual output of the node

void	setParentNode (JKQTMathTextNode *node)
	parent node of this node (i.e. one level up, ode `nullptr` )

void	setSubSuperscriptAboveBelowNode (bool __value)
	if `true` then following sub- and/or superscripts are placed below and above the node, not besides it. This is activated when `\sum\limits_{sub}^{sup}` is used in LaTeX instead of simply `\sum_{sub}^{sup}`

Static Public Member Functions
static Units	String2Units (QString type)
	converts Types type into a string

static QString	Units2String (Units type)
	converts Types type into a string

Static Public Member Functions inherited from JKQTMathTextNode
static double	getNonItalicXCorretion (QPainter &painter, double width_potentiallyitalic, const JKQTMathTextEnvironment &ev_potentiallyitalic, const JKQTMathTextNode *child)
	calculates the x-size-difference between the given (probably) italic (width externally calculated: width_potentiallyitalic, ev_potentiallyitalic) and the non-italic version of child

Protected Member Functions
virtual JKQTMathTextNodeSize	getSizeInternal (QPainter &painter, JKQTMathTextEnvironment currentEv) const override
	determine the size of the node, overwrite this function in derived classes

Protected Member Functions inherited from JKQTMathTextNode
void	addToErrorList (const QString &error)
	adds a new error to the JKQTMathText referenced by parentMathText

void	doDrawBoxes (QPainter &painter, double x, double y, const JKQTMathTextNodeSize &size) const
	draws colored boxes (for DEBUGGING) around the actual output of the node

void	doDrawBoxes (QPainter &painter, double x, double y, JKQTMathTextEnvironment currentEv) const
	draws colored boxes (for DEBUGGING) around the actual output of the node

template<class T >
QList< T * >	getParents ()
	returns the list of parent, parent-of-parent, ... that can be cast to type T

template<class T >
QList< const T * >	getParents () const
	returns the list of parent, parent-of-parent, ... that can be cast to type T

Protected Attributes
double	height
	height of the (empty) box, units of this value defined in heightUnit

Units	heightUnit
	units to interpret height

double	width
	width of the (empty) box, units of this value defined in widthUnit

Units	widthUnit
	units to interpret width

Protected Attributes inherited from JKQTMathTextNode
bool	drawBoxes
	enables the drawing of colored boxes (for DEBUGGING) around the actual output of the node

JKQTMathText *	parentMathText
	parent JKQTMathText object (required for several drawing operations

JKQTMathTextNode *	parentNode
	parent node of this node (i.e. one level up, ode `nullptr` )

bool	subSuperscriptAboveBelowNode
	if `true` then following sub- and/or superscripts are placed below and above the node, not besides it. This is activated when `\sum\limits_{sub}^{sup}` is used in LaTeX instead of simply `\sum_{sub}^{sup}`

Detailed Description

subclass representing an empty bbox with defined width/height in the syntax tree

Member Enumeration Documentation

◆ Units

enum JKQTMathTextEmptyBoxNode::Units

Enumerator
EBUem	1em = width('M')
EBUex	1ex = xHeight

Constructor & Destructor Documentation

◆ JKQTMathTextEmptyBoxNode()

JKQTMathTextEmptyBoxNode::JKQTMathTextEmptyBoxNode	(	JKQTMathText *	parent,
		double	width_,
		Units	widthUnit_,
		double	height_,
		Units	heightUnit_
	)

explicit

constructs a node

◆ ~JKQTMathTextEmptyBoxNode()

virtual JKQTMathTextEmptyBoxNode::~JKQTMathTextEmptyBoxNode ( )

overridevirtual

Member Function Documentation

◆ draw()

virtual double JKQTMathTextEmptyBoxNode::draw	(	QPainter &	painter,
		double	x,
		double	y,
		JKQTMathTextEnvironment	currentEv
	)		const

overridevirtual

draw the contents at the designated position

Parameters

painter	QPainter to use
x	x-position, where the drawing starts [Pixel]
y	Y-position of the baseline, where the drawing starts [Pixel]
currentEv	JKQTMathTextEnvironment object describing the current drawing environment/settings

Returns: the x position which to use for the next part of the text

Implements JKQTMathTextNode.

◆ getHeight()

double JKQTMathTextEmptyBoxNode::getHeight ( ) const

height of the (empty) box, units of this value defined in heightUnit

◆ getHeightUnit()

Units JKQTMathTextEmptyBoxNode::getHeightUnit ( ) const

units to interpret height

◆ getSizeInternal()

virtual JKQTMathTextNodeSize JKQTMathTextEmptyBoxNode::getSizeInternal	(	QPainter &	painter,
		JKQTMathTextEnvironment	currentEv
	)		const

overrideprotectedvirtual

determine the size of the node, overwrite this function in derived classes

Parameters

painter	painter to use for determining the size
currentEv	current environment object

Returns: all important box size parameters packed as JKQTMathTextNodeSize

Implements JKQTMathTextNode.

◆ getTypeName()

virtual QString JKQTMathTextEmptyBoxNode::getTypeName ( ) const

overridevirtual

return the name of this class as a string

Reimplemented from JKQTMathTextNode.

◆ getWidth()

double JKQTMathTextEmptyBoxNode::getWidth ( ) const

width of the (empty) box, units of this value defined in widthUnit

◆ getWidthUnit()

Units JKQTMathTextEmptyBoxNode::getWidthUnit ( ) const

units to interpret width

◆ String2Units()

static Units JKQTMathTextEmptyBoxNode::String2Units ( QString type )

static

converts Types type into a string

◆ toHtml()

virtual bool JKQTMathTextEmptyBoxNode::toHtml	(	QString &	html,
		JKQTMathTextEnvironment	currentEv,
		JKQTMathTextEnvironment	defaultEv
	)		const

overridevirtual

convert node to HTML and returns true on success

Parameters

[out]	html	new HTML code is APPENDED to this string
	currentEv	JKQTMathTextEnvironment object describing the current drawing environment/settings
	defaultEv	JKQTMathTextEnvironment object describing the default drawing environment/settings when starting to interpret a node tree

Returns: true on success

Reimplemented from JKQTMathTextNode.

◆ Units2PixelWidth()

double JKQTMathTextEmptyBoxNode::Units2PixelWidth	(	double	value,
		Units	unit,
		JKQTMathTextEnvironment	currentEv,
		QPaintDevice *	pd
	)		const

converts Types type into its width in pixels, based on currentEv and pd

◆ Units2String()

static QString JKQTMathTextEmptyBoxNode::Units2String ( Units type )

static

converts Types type into a string

Member Data Documentation

◆ height

double JKQTMathTextEmptyBoxNode::height

protected

height of the (empty) box, units of this value defined in heightUnit

◆ heightUnit

Units JKQTMathTextEmptyBoxNode::heightUnit

protected

units to interpret height

◆ width

double JKQTMathTextEmptyBoxNode::width

protected

width of the (empty) box, units of this value defined in widthUnit

◆ widthUnit

Units JKQTMathTextEmptyBoxNode::widthUnit

protected

units to interpret width

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

jkqtmathtextwhitespacenode.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

◆ Units

Constructor & Destructor Documentation

◆ JKQTMathTextEmptyBoxNode()

◆ ~JKQTMathTextEmptyBoxNode()

Member Function Documentation

◆ draw()

◆ getHeight()

◆ getHeightUnit()

◆ getSizeInternal()

◆ getTypeName()

◆ getWidth()

◆ getWidthUnit()

◆ String2Units()

◆ toHtml()

◆ Units2PixelWidth()

◆ Units2String()

Member Data Documentation

◆ height

◆ heightUnit

◆ width

◆ widthUnit