Qt::ItemIgnoresTransformations flag and selectable area

[wysota]

Could you provide a minimal compilable example reproducing the problem?

[guher]

//////RectItem.h
 
#include <QGraphicsRectItem>
#include <QGraphicsSceneContextMenuEvent>
#include <QStyleOptionGraphicsItem>
#include <QPainter>
#include <QGraphicsScene>
#include <QWidget>
#include <QMenu>
 
class RectItem: public QGraphicsRectItem
{
public:
 
	RectItem(QRectF, QGraphicsItem* parent = 0, QGraphicsScene* scene = 0 );
	~RectItem();
 
	QRectF boundingRect() const;
	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
	void contextMenuEvent(QGraphicsSceneContextMenuEvent *);
	QMenu menu;
 
 
};
 
 
 
/////////////its corresponding cpp file
#include "RectItem.h"
 
RectItem::RectItem(QRectF rect, QGraphicsItem* parent , QGraphicsScene* scene ):
QGraphicsRectItem(rect, parent, scene)
{
	menu.addAction("Menu");
}
RectItem::~RectItem()
{}
 
	QRectF RectItem::boundingRect() const
	{
		return QGraphicsRectItem::boundingRect();
	}
	void RectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
	{
		QGraphicsRectItem::paint(painter, option, widget);
	}
	void RectItem::contextMenuEvent(QGraphicsSceneContextMenuEvent * event)
	{
 
 
		menu.exec(event->screenPos());
	}

//////RectItem.h

#include <QGraphicsRectItem>
#include <QGraphicsSceneContextMenuEvent>
#include <QStyleOptionGraphicsItem>
#include <QPainter>
#include <QGraphicsScene>
#include <QWidget>
#include <QMenu>

class RectItem: public QGraphicsRectItem
{
public:

	RectItem(QRectF, QGraphicsItem* parent = 0, QGraphicsScene* scene = 0 );
	~RectItem();
		
	QRectF boundingRect() const;
	void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
	void contextMenuEvent(QGraphicsSceneContextMenuEvent *);
	QMenu menu;
		

};



/////////////its corresponding cpp file
#include "RectItem.h"

RectItem::RectItem(QRectF rect, QGraphicsItem* parent , QGraphicsScene* scene ):
QGraphicsRectItem(rect, parent, scene)
{
	menu.addAction("Menu");
}
RectItem::~RectItem()
{}
		
	QRectF RectItem::boundingRect() const
	{
		return QGraphicsRectItem::boundingRect();
	}
	void RectItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
	{
		QGraphicsRectItem::paint(painter, option, widget);
	}
	void RectItem::contextMenuEvent(QGraphicsSceneContextMenuEvent * event)
	{
		
		
		menu.exec(event->screenPos());
	}

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Now, the latter code resides in a class, which holds a qgraphicsview in its ui:

QGraphicsScene *scene=new QGraphicsScene();
	RectItem * item=new RectItem(QRectF(0,0,50,50));
 
 
	scene->addItem(item);
	item->setPos(0,0);
	item->setFlag(QGraphicsItem::ItemIsMovable, true);
	item->setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
	item->setZValue(1);
	item->show();
 
	ui.graphicsView->setScene(scene);
	ui.graphicsView->setSceneRect(QRectF(-100,-100,200,200));
 
	ui.graphicsView->scale(0.2,0.2);

QGraphicsScene *scene=new QGraphicsScene();
	RectItem * item=new RectItem(QRectF(0,0,50,50));
	

	scene->addItem(item);
	item->setPos(0,0);
	item->setFlag(QGraphicsItem::ItemIsMovable, true);
	item->setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
	item->setZValue(1);
	item->show();

	ui.graphicsView->setScene(scene);
	ui.graphicsView->setSceneRect(QRectF(-100,-100,200,200));

	ui.graphicsView->scale(0.2,0.2);

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The context menu works only in a smaller space of the rectangle. The selectable area is not the rectangle seen on the screen.
Thanks in advance

[wysota]

This indeed could be a bug. Did you check the task-tracker for similar entries?