QNonScalableGraphicsTextItem Class Reference

Detailed Description

A QGraphicsTextItem that will ignore all geometric transformations.

A QGraphicsTextItem that will ignore all geometric transformations to the underlying QGraphicsView/QGraphicsScene (in particular, it will not be scaled).

Definition at line 24 of file QNonScalableGraphicsTextItem.h.

#include <QNonScalableGraphicsTextItem.h>

Inheritance diagram for QNonScalableGraphicsTextItem:

Collaboration diagram for QNonScalableGraphicsTextItem:

Public Member Functions
	QNonScalableGraphicsTextItem (QGraphicsItem *parent=nullptr)
	Constructor using a QGraphicsTextItem.
	QNonScalableGraphicsTextItem (const QString &text, QGraphicsItem *parent=nullptr)
	Constructor using a QString.
	~QNonScalableGraphicsTextItem () override
void	paint (QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) override
	Paints the text item.
QRectF	boundingRect () const override
	Returns the bounding rectangle of the text item.

Constructor & Destructor Documentation

QNonScalableGraphicsTextItem() [1/2]

QNonScalableGraphicsTextItem::QNonScalableGraphicsTextItem ( QGraphicsItem * parent = nullptr )

explicit

Constructor using a QGraphicsTextItem.

Definition at line 20 of file QNonScalableGraphicsTextItem.cpp.

    : QGraphicsTextItem(parent)
{
    setAcceptDrops(true);
    setAcceptHoverEvents(true);
    setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
}

QNonScalableGraphicsTextItem() [2/2]

QNonScalableGraphicsTextItem::QNonScalableGraphicsTextItem ( const QString & text, QGraphicsItem * parent = nullptr )

explicit

Constructor using a QString.

Definition at line 30 of file QNonScalableGraphicsTextItem.cpp.

    : QGraphicsTextItem(parent)
{
    if (!text.isEmpty())
    {
        setPlainText(text);
    }
    setAcceptDrops(true);
    setAcceptHoverEvents(true);
    setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
}

~QNonScalableGraphicsTextItem()

QNonScalableGraphicsTextItem::~QNonScalableGraphicsTextItem ( )

overridedefault

Member Function Documentation

boundingRect()

QRectF QNonScalableGraphicsTextItem::boundingRect ( ) const

override

Returns the bounding rectangle of the text item.

Definition at line 57 of file QNonScalableGraphicsTextItem.cpp.

{
    QRectF rect = QGraphicsTextItem::boundingRect();
    return rect;  // QRectF(rect.x()-rect.width()/2,
                  // rect.y()-rect.height()/2,rect.width(), rect.height());
}

Referenced by StratScene::StratScene(), paint(), and DiagramScene::update().

paint()

void QNonScalableGraphicsTextItem::paint ( QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget )

override

Paints the text item.

Definition at line 46 of file QNonScalableGraphicsTextItem.cpp.

{
    // painter->drawRect(boundingRect());
    QRectF rect = boundingRect();
    painter->translate(-rect.width() / 2, -rect.height() / 2);
    QGraphicsTextItem::paint(painter, option, widget);
}

References boundingRect().

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

• Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.h
• Applications/DataExplorer/Base/QNonScalableGraphicsTextItem.cpp