QGraphicsTextItem setPlainText Memory issue

[decin]

Hi,
I am using QGraphicsTextItem to display a text that is continiously being updated at a given time interval. i am calling the setPlainText to set the text. It is observed on each call to setPlainText the memory used by the application keeps increasing.

Below is a sample code where this issue can be noticed. you can notice the memory used by the application in windows task manager.

#include <QtGui/QApplication>
#include <QGraphicsView>
#include <QGraphicsTextItem>
#include <QTimer>
#include <limits>
 
 
int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	QGraphicsScene scene;
	QGraphicsView view(&scene);
	QGraphicsTextItem pItem ;
	pItem.setPlainText("This is a text");
	scene.addItem(&pItem);
	view.show();
	QString strText("text");
	double i = 0;
	while(i<std::numeric_limits<int>::max())
	{
		pItem.setPlainText(strText + QString::number(i));
		QApplication::processEvents();
		i++;
	}
	scene.removeItem(&pItem);
	return a.exec();
}

#include <QtGui/QApplication>
#include <QGraphicsView>
#include <QGraphicsTextItem>
#include <QTimer>
#include <limits>


int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	QGraphicsScene scene;
	QGraphicsView view(&scene);
	QGraphicsTextItem pItem ;
	pItem.setPlainText("This is a text");
	scene.addItem(&pItem);
	view.show();
	QString strText("text");
	double i = 0;
	while(i<std::numeric_limits<int>::max())
	{
		pItem.setPlainText(strText + QString::number(i));
		QApplication::processEvents();
		i++;
	}
	scene.removeItem(&pItem);
	return a.exec();
}

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I am using Qt 4.6.2 on windows vista
visual studio 2008.

tia,

[decin]

http://bugreports.qt.nokia.com/browse/QTBUG-8862

[arpspatel]

why are you using QGraphicsView/Scene/TextItem ?? or is this just a small part of some other project?? wouldnt QLabel be faster and easier to implement..