Graphics View context Menu...

[maverick_pol]

Hi guys,

I have created a graphics view in the designer. I also have a class that works with implementing some solutions for the view. So I create the class object(giving the ui.GraphicsView using refrence -> so the class could change it).
But when I try to set context Menu for the Scene(which is also a member of that class -> add to the graphicsView in the constructor) or the GraphicsView It doesn not show.
I have implemented it for the main window and it worked, but When I try to use context menu for the view it does not show. Maybe there is a problem with passing the ui.GraphicsView(created in the Designer) as a reference and then creating it's context menu? Yet I am looking for a solution. Maybe someone had this kind of dilema.

Beforehand thanks!

Maverick

P.S.

Passing the ui.GraphicsView as a reference should do the job, but doesn not work. Or maybe the problem is somewhere else. ANy hints appreciated.

[jpn]

Could we see the relevant code?

[maverick_pol]

I am bit busy right now, but will post the code soon.

I have created, using designer, a graphics view -> ui.gvChart
I also have a class containing m_scene and m_view:

class		Chart:	public QWidget
{
		Q_OBJECT
 
		public :
				Chart(QGraphicsView*,QWidget* parent = 0);
				~Chart();
 
				View*			               m_view;
				QGraphicsScene*			m_scene;
..........
}
Chart::Chart( QGraphicsView* v,QWidget* parent): QWidget(parent)
{
    m_view = dynamic_cast<View*>(v);
    vSetScene();
    vSetView();
}
void		Chart::vSetView()
{
		m_view->setScene(m_scene);
		m_view->show();
		//setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
}
 
void		Chart::vSetScene()
{
		m_scene = new QGraphicsScene(this);
		m_scene->setItemIndexMethod(QGraphicsScene::BspTreeIndex);
		m_scene->setSceneRect(0, 0, m_view->width(),m_view->height());
		m_scene->setBackgroundBrush(QBrush(Qt::gray));
}

class		Chart:	public QWidget
{
		Q_OBJECT

		public :
				Chart(QGraphicsView*,QWidget* parent = 0);
				~Chart();

				View*			               m_view;
				QGraphicsScene*			m_scene;
..........
}
Chart::Chart( QGraphicsView* v,QWidget* parent): QWidget(parent)
{
    m_view = dynamic_cast<View*>(v);
    vSetScene();
    vSetView();
}
void		Chart::vSetView()
{
		m_view->setScene(m_scene);
		m_view->show();
		//setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
}

void		Chart::vSetScene()
{
		m_scene = new QGraphicsScene(this);
		m_scene->setItemIndexMethod(QGraphicsScene::BspTreeIndex);
		m_scene->setSceneRect(0, 0, m_view->width(),m_view->height());
		m_scene->setBackgroundBrush(QBrush(Qt::gray));
}

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Here is the View class:

class		View:		public QGraphicsView
{
		public:
			View(QWidget* parent): QGraphicsView(parent) {}
			~View() {}
 
		protected:
				void		contextMenuEvent(QContextMenuEvent*);
};
void		View::contextMenuEvent(QContextMenuEvent* event)
{
		QMenu* m_contextMenu;
		m_contextMenu		= new QMenu;
		QAction*		     act = new QAction(QIcon(""),tr("Buuuuu"),this);
		m_contextMenu		= new QMenu;
		m_contextMenu->addAction(act);
		m_contextMenu->exec(event->globalPos());
}

class		View:		public QGraphicsView
{
		public:
			View(QWidget* parent): QGraphicsView(parent) {}
			~View() {}
		
		protected:
				void		contextMenuEvent(QContextMenuEvent*);
};
void		View::contextMenuEvent(QContextMenuEvent* event)
{
		QMenu* m_contextMenu;
		m_contextMenu		= new QMenu;
		QAction*		     act = new QAction(QIcon(""),tr("Buuuuu"),this);
		m_contextMenu		= new QMenu;
		m_contextMenu->addAction(act);
		m_contextMenu->exec(event->globalPos());
}

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In the main class I create the Chart class:

m_chart = new Chart(ui.gvChart,this);

m_chart = new Chart(ui.gvChart,this);

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That's about all. I have added contextMenu code(used here) to show main Window context menu and the context Menu appears, but not workin here.

Thanks in advance for help.

Maverick

P.S.
the code compiles, but crashes in the SetScene(...->setSceneRect);