subclass representing a list of nodes in the syntax tree, layed out horizontally More...

#include <jkqtmathtexthorizontallistnode.h>

Inheritance diagram for JKQTMathTextHorizontalListNode:

Collaboration diagram for JKQTMathTextHorizontalListNode:

Public Member Functions
	JKQTMathTextHorizontalListNode (JKQTMathText *parent)

virtual	~JKQTMathTextHorizontalListNode () override

void	addChild (JKQTMathTextNode *n)
	add a child node

virtual int	childCount () const override
	returns the number of child nodes

virtual void	clearChildren (bool deleteChildren=true) override
	clear all children, deleting them if deleteChildren==true

virtual void	deleteChild (int i) override
	delete the i-th child

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

virtual const JKQTMathTextNode *	getChild (int i) const override
	returns the i-th child node

virtual JKQTMathTextNode *	getChild (int i) override
	returns the i-th child node

virtual QList< JKQTMathTextNode * >	getChildren () override
	returns a list of all child node

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

virtual void	modifyEnvironment (JKQTMathTextEnvironment &currentEv) const override
	modifies the fiven JKQTMathTextEnvironment currrentEv

virtual JKQTMathTextNode *	replaceChild (int i, JKQTMathTextNode *newChild) override
	returns the i-th child node

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

Public Member Functions inherited from JKQTMathTextMultiChildNode
	JKQTMathTextMultiChildNode (JKQTMathText *parentMathText)

virtual	~JKQTMathTextMultiChildNode () override

virtual QList< const JKQTMathTextNode * >	getChildren () const
	returns a list of all child node

virtual JKQTMathTextNode *	getFirstChild ()
	returns the first child node

virtual const JKQTMathTextNode *	getFirstChild () const
	returns the first child node

virtual JKQTMathTextNode *	getLastChild ()
	returns the last child node

virtual const JKQTMathTextNode *	getLastChild () const
	returns the last child node

bool	hasChildren () const
	returns `true` if children exist

bool	isEmpty () const
	returns `true` if there are no children

virtual void	replaceAndDeleteChild (int i, JKQTMathTextNode *newChild)
	replaces the i-th child node with the node newChild , deletes the replaced old node

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

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

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}`

Public Member Functions inherited from JKQTMathTextModifyEnvironmentNodeMixIn
virtual	~JKQTMathTextModifyEnvironmentNodeMixIn ()

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
QList< JKQTMathTextNode * >	nodes
	list of all nodes within the line

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}`

Private Member Functions
void	clearChildrenImpl (bool deleteChildren)
	internal implementation of clearChildren() that is non-virtual, so can be used in the destructor

Additional Inherited Members
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

Detailed Description

subclass representing a list of nodes in the syntax tree, layed out horizontally

This type of node also implements typesetting sub-/superscript above/below the previous node (if JKQTMathTextNode::is() is true for that previus node. The drawing is done as defined in the following image:

In addition this node also ensures that subscripts are moved to the left for italic previous text or nodes that require such a shift (e.g. \nabla or \int ):

This is implemented using JKQTMathTextNodeSize::baselineXCorrection .

In addition this class implements execution of instructions derived from JKQTMathTextModifyEnvironmentNodeMixIn.

See also: JKQTMathTextVerticalListNode

Constructor & Destructor Documentation

◆ JKQTMathTextHorizontalListNode()

JKQTMathTextHorizontalListNode::JKQTMathTextHorizontalListNode ( JKQTMathText * parent )

explicit

◆ ~JKQTMathTextHorizontalListNode()

virtual JKQTMathTextHorizontalListNode::~JKQTMathTextHorizontalListNode ( )

overridevirtual

Member Function Documentation

◆ addChild()

void JKQTMathTextHorizontalListNode::addChild ( JKQTMathTextNode * n )

add a child node

◆ childCount()

virtual int JKQTMathTextHorizontalListNode::childCount ( ) const

overridevirtual

returns the number of child nodes

Implements JKQTMathTextMultiChildNode.

◆ clearChildren()

virtual void JKQTMathTextHorizontalListNode::clearChildren ( bool deleteChildren = true )

overridevirtual

clear all children, deleting them if deleteChildren==true

Implements JKQTMathTextMultiChildNode.

◆ clearChildrenImpl()

void JKQTMathTextHorizontalListNode::clearChildrenImpl ( bool deleteChildren )

private

internal implementation of clearChildren() that is non-virtual, so can be used in the destructor

◆ deleteChild()

virtual void JKQTMathTextHorizontalListNode::deleteChild ( int i )

overridevirtual

delete the i-th child

Implements JKQTMathTextMultiChildNode.

◆ draw()

virtual double JKQTMathTextHorizontalListNode::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.

◆ getChild() [1/2]

virtual const JKQTMathTextNode * JKQTMathTextHorizontalListNode::getChild ( int i ) const

overridevirtual

returns the i-th child node

Implements JKQTMathTextMultiChildNode.

◆ getChild() [2/2]

virtual JKQTMathTextNode * JKQTMathTextHorizontalListNode::getChild ( int i )

overridevirtual

returns the i-th child node

Implements JKQTMathTextMultiChildNode.

◆ getChildren()

virtual QList< JKQTMathTextNode * > JKQTMathTextHorizontalListNode::getChildren ( )

overridevirtual

returns a list of all child node

Reimplemented from JKQTMathTextMultiChildNode.

◆ getSizeInternal()

virtual JKQTMathTextNodeSize JKQTMathTextHorizontalListNode::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 JKQTMathTextHorizontalListNode::getTypeName ( ) const

overridevirtual

return the name of this class as a string

Reimplemented from JKQTMathTextNode.

◆ modifyEnvironment()

virtual void JKQTMathTextHorizontalListNode::modifyEnvironment ( JKQTMathTextEnvironment & currentEv ) const

overridevirtual

modifies the fiven JKQTMathTextEnvironment currrentEv

Implements JKQTMathTextModifyEnvironmentNodeMixIn.

◆ replaceChild()

virtual JKQTMathTextNode * JKQTMathTextHorizontalListNode::replaceChild	(	int	i,
		JKQTMathTextNode *	newChild
	)

overridevirtual

returns the i-th child node

Implements JKQTMathTextMultiChildNode.

◆ toHtml()

virtual bool JKQTMathTextHorizontalListNode::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.

Member Data Documentation

◆ nodes

QList<JKQTMathTextNode*> JKQTMathTextHorizontalListNode::nodes

protected

list of all nodes within the line

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

jkqtmathtexthorizontallistnode.h

Public Member Functions

Protected Member Functions

Protected Attributes

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ JKQTMathTextHorizontalListNode()

◆ ~JKQTMathTextHorizontalListNode()

Member Function Documentation

◆ addChild()

◆ childCount()

◆ clearChildren()

◆ clearChildrenImpl()

◆ deleteChild()

◆ draw()

◆ getChild() [1/2]

◆ getChild() [2/2]

◆ getChildren()

◆ getSizeInternal()

◆ getTypeName()

◆ modifyEnvironment()

◆ replaceChild()

◆ toHtml()

Member Data Documentation

◆ nodes