Can't move Items in the scene

[maverick_pol]

Hi guys,

I have a custom scene, implemented virtual methods:

void	drawBackground..
	 void   drawForeground..
	void	mouseMoveEvent ..
	void	mousePressEvent..
	void 	keyPressEvent ..
	void	keyReleaseEvent..
	void	contextMenuEvent..

void	drawBackground..
	 void   drawForeground..
	void	mouseMoveEvent ..
	void	mousePressEvent..
	void 	keyPressEvent ..
	void	keyReleaseEvent..
	void	contextMenuEvent..

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Here my view/scene settings

m_scene->setItemIndexMethod(QGraphicsScene::NoIndex);
m_scene->setSceneRect(QRectF(QPointF(-180,-90),QPointF(180,90)));
...
m_view->setCacheMode(QGraphicsView::CacheBackground);
m_view->setOptimizationFlag(QGraphicsView::DontClipPainter);
m_view->setOptimizationFlag(QGraphicsView::DontSavePainterState);
m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
m_view->setRenderHints( QPainter::HighQualityAntialiasing);
m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setScene(m_scene);
m_view->setSceneRect(QRectF(QPointF(-180,-90),QPointF(180,90)));
m_view->setBackgroundColor(m_colorMap.value("NODTA"));
m_view->show();

m_scene->setItemIndexMethod(QGraphicsScene::NoIndex);
m_scene->setSceneRect(QRectF(QPointF(-180,-90),QPointF(180,90)));
...
m_view->setCacheMode(QGraphicsView::CacheBackground);
m_view->setOptimizationFlag(QGraphicsView::DontClipPainter);
m_view->setOptimizationFlag(QGraphicsView::DontSavePainterState);
m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
m_view->setRenderHints( QPainter::HighQualityAntialiasing);
m_view->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
m_view->setScene(m_scene);
m_view->setSceneRect(QRectF(QPointF(-180,-90),QPointF(180,90)));
m_view->setBackgroundColor(m_colorMap.value("NODTA"));
m_view->show();

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This is the item I create in the scene/view owner class:

QGraphicsEllipseItem*	item = new QGraphicsEllipseItem(QRectF(0,0,20,20));
item->setPen(QPen(Qt::red));
item->setBrush(QBrush(Qt::red));
item->setFlag(QGraphicsItem::ItemIsMovable);
item->setVisible(true);
m_scene->addItem(item);

QGraphicsEllipseItem*	item = new QGraphicsEllipseItem(QRectF(0,0,20,20));
item->setPen(QPen(Qt::red));
item->setBrush(QBrush(Qt::red));
item->setFlag(QGraphicsItem::ItemIsMovable);
item->setVisible(true);
m_scene->addItem(item);

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The ellipse is shown, can be selected(if I turn the flag on), but I can't move the item? The question is why?

Thanks.

Kacper

[wysota]

You have to call the base class implementation of mousePressEvent and mouseMoveEvent for the scene.

[maverick_pol]

Thanks.

I also found some related topics, useful if someone search the forum and get this thread:
http://www.qtcentre.org/forum/f-qt-p...tion-8501.html
http://www.qtcentre.org/forum/f-qt-p...cene-8396.html
http://www.qtcentre.org/forum/f-qt-p...cene-8396.html

Kacper