The CustomElementPart class This abstract class represents a primitive of the visual representation of an electrical element. The Element, FixedElement and CustomElement classes do not embed its attributes and methods in order to remain lightweight; indeed, there is no point for those classes to store their visual representation with anything more complex than a QImage. More...

#include <customelementpart.h>

Inheritance diagram for CustomElementPart:

Collaboration diagram for CustomElementPart:

Public Member Functions
	CustomElementPart (QETElementEditor *editor)
	CustomElementPart Constructor.
virtual	~CustomElementPart ()
	~CustomElementPart Destructor
virtual void	fromXml (const QDomElement &)=0
virtual const QDomElement	toXml (QDomDocument &) const =0
virtual void	setProperty (const char *name, const QVariant &value)=0
virtual QVariant	property (const char *name) const =0
virtual bool	isUseless () const =0
virtual QRectF	sceneGeometricRect () const =0
virtual void	startUserTransformation (const QRectF &)=0
virtual void	handleUserTransformation (const QRectF &, const QRectF &)=0
virtual QETElementEditor *	elementEditor () const
virtual void	updateCurrentPartEditor () const
virtual ElementScene *	elementScene () const
virtual QUndoStack &	undoStack () const
virtual QString	name () const =0
virtual QString	xmlName () const =0
virtual QGraphicsItem *	toItem ()
virtual QET::ScalingMethod	preferredScalingMethod () const

Protected Member Functions
QList< QPointF >	mapPoints (const QRectF &, const QRectF &, const QList< QPointF > &)

Private Member Functions
	CustomElementPart (const CustomElementPart &)

Private Attributes
QETElementEditor *	element_editor

Detailed Description

The CustomElementPart class This abstract class represents a primitive of the visual representation of an electrical element. The Element, FixedElement and CustomElement classes do not embed its attributes and methods in order to remain lightweight; indeed, there is no point for those classes to store their visual representation with anything more complex than a QImage.

Constructor & Destructor Documentation

◆ CustomElementPart() [1/2]

CustomElementPart::CustomElementPart ( QETElementEditor * editor )

inline

CustomElementPart Constructor.

Parameters

editor Element editor this primitive is attached to

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◆ ~CustomElementPart()

virtual CustomElementPart::~CustomElementPart ( )

inlinevirtual

~CustomElementPart Destructor

◆ CustomElementPart() [2/2]

CustomElementPart::CustomElementPart ( const CustomElementPart & )

private

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Member Function Documentation

◆ elementEditor()

QETElementEditor * CustomElementPart::elementEditor ( ) const

virtual

Returns: a pointer to the parent element editor; le QETElementEditor auquel cet editeur appartient

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◆ elementScene()

ElementScene * CustomElementPart::elementScene ( ) const

virtual

Returns: a pointer to the parent editing scene; l'ElementScene contenant les parties editees par cet editeur

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◆ fromXml()

virtual void CustomElementPart::fromXml ( const QDomElement & )

pure virtual

Load the primitive from an XML element that describes it

Implemented in PartArc, PartDynamicTextField, PartEllipse, PartLine, PartPlcTable, PartPolygon, PartRectangle, PartTerminal, and PartText.

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◆ handleUserTransformation()

virtual void CustomElementPart::handleUserTransformation	(	const QRectF &	,
		const QRectF &	)

pure virtual

Make this part fit into the provided rectangle.

Implemented in AbstractPartEllipse, PartDynamicTextField, PartLine, PartPlcTable, PartPolygon, PartRectangle, PartTerminal, and PartText.

◆ isUseless()

virtual bool CustomElementPart::isUseless ( ) const

pure virtual

Returns: whether the primitive appears to be useless (e.g. 0-length line) Typically, useless primitives are discarded when saving the element.

Implemented in AbstractPartEllipse, PartDynamicTextField, PartLine, PartPlcTable, PartPolygon, PartRectangle, PartTerminal, and PartText.

◆ mapPoints()

QList< QPointF > CustomElementPart::mapPoints	(	const QRectF &	initial_selection_rect,
		const QRectF &	new_selection_rect,
		const QList< QPointF > &	points )

protected

Helper method to map points in CustomElementPart::handleUserTransformation()

Parameters

initial_selection_rect	Selection rectangle when the movement started, in scene coordinates
new_selection_rect	New selection rectangle, in scene coordinates
points	List of points when the movement started, in scene coordinates.

Returns: The list of points mapped from initial_selection_rect to new_selection_rect

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◆ name()

virtual QString CustomElementPart::name ( ) const

pure virtual

Returns: the name of the primitive

Implemented in PartArc, PartDynamicTextField, PartEllipse, PartLine, PartPlcTable, PartPolygon, PartRectangle, PartTerminal, and PartText.

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◆ preferredScalingMethod()

QET::ScalingMethod CustomElementPart::preferredScalingMethod ( ) const

virtual

This method is called by the decorator when it needs to determine the best way to interactively scale a primitive. It is typically called when only a single primitive is being scaled. The default implementation systematically returns QET::SnapScalingPointToGrid

Reimplemented in PartPolygon.