[PyQt] Hover Event for a QGraphicsItem

[sw33tz]

Yea thats definately not the reason because everything in my original code looks fine,what could be the problem exactly?

Sent from my iPhone

> On 08 May 2016, at 1:14 AM, Elvis Stansvik [via Python] <ml-node+s6n5190298h49 at n6.nabble.com> wrote:
> 
> 2016-05-07 23:05 GMT+02:00 sw33tz <[hidden email]>: 
> > Thanks for replying...I've updated my code but I still cant get it to work: 
> > 
> > class graphics_Object(QtGui.QGraphicsPixmapItem): 
> >     def __init__(self, parent=None): 
> >         super(switch_Object, self).__init__(parent) 
> 
> Should be graphics_Object here, not switch_Object ^ (in the call to super). 
> 
> Don't think that is the problem though, but it's late here and I have to sleep. 
> 
> Elvis 
> 
> >         pixmap = QtGui.QPixmap("item.png") 
> >         self.graphics_pixItem = QtGui.QGraphicsPixmapItem(pixmap.scaled(40, 
> > 40, QtCore.Qt.KeepAspectRatio)) 
> > 
> > self.graphics_pixItem.setFlag(QtGui.QGraphicsPixmapItem.ItemIsSelectable) 
> > 
> > self.graphics_pixItem.setFlag(QtGui.QGraphicsPixmapItem.ItemIsMovable) 
> >         self.graphics_pixItem.setAcceptHoverEvents(True) 
> > 
> > 
> >     def hoverEnterEvent(self, event): 
> >         print 'hello' 
> > 
> > class graphicsScene(QtGui.QGraphicsScene): 
> >     def __init__(self, parent=None): 
> >         super(graphicsScene, self).__init__(parent) 
> > 
> >     def mousePressEvent(self, event): 
> >         self.graphics_item = graphics_Object() 
> >     def mouseReleaseEvent(self, event) 
> >         self.addItem(self.self.graphics_item.graphics_pixItem) 
> >         self.graphics_item.self.graphics_pixItem.setPos(event.scenePos()) 
> > 
> > class Form(QtGui.QMainWindow): 
> >     def __init__(self): 
> >         super(Form, self).__init__() 
> >         self.ui = uic.loadUi('form.ui') 
> > 
> >         self.scene = graphicsScene() 
> >         self.ui.view.setScene(self.scene) 
> > 
> >         self.setMouseTracking(True) 
> > 
> > 
> > On Sat, May 7, 2016 at 10:55 PM, Elvis Stansvik [via Python] <[hidden 
> > email]> wrote: 
> >> 
> >> Hi Nesibe, 
> >> 
> >> 2016-05-07 19:46 GMT+02:00 sw33tz <[hidden email]>: 
> >> > I want some small text to pop up when I have my curser over a 
> >> > QGraphicsItem 
> >> > in my QGraphicsScene. I have a class that inherits from QGraphicsItem, 
> >> > and 
> >> > this represents my graphical items in the scene. 
> >> > 
> >> > I tried using the QGraphicsItem.hoverEnterEvent and I also set the 
> >> > setAcceptHoverEvents(True), but I still can't enable that hover event. I 
> >> > also came across an event filter method but I'm not sure where to 
> >> > implement 
> >> > it. 
> >> 
> >> This seems to work here: 
> >> 
> >> 
> >> test.py: 
> >> 
> >> from sys import argv, exit 
> >> 
> >> from PyQt5.QtCore import Qt 
> >> from PyQt5.QtWidgets import QApplication 
> >> from PyQt5.QtWidgets import QGraphicsEllipseItem 
> >> from PyQt5.QtWidgets import QGraphicsScene 
> >> from PyQt5.QtWidgets import QGraphicsView 
> >> from PyQt5.QtWidgets import QMainWindow 
> >> 
> >> 
> >> class MyItem(QGraphicsEllipseItem): 
> >> 
> >>     def __init__(self, parent=None): 
> >>         super(MyItem, self).__init__(parent) 
> >> 
> >>         self.setRect(50, 50, 50, 50) 
> >>         self.setBrush(Qt.red) 
> >>         self.setAcceptHoverEvents(True) 
> >> 
> >>     def hoverEnterEvent(self, event): 
> >>         print('hover enter') 
> >> 
> >>     def hoverLeaveEvent(self, event): 
> >>         print('hover leave') 
> >> 
> >> 
> >> app = None 
> >> 
> >> 
> >> def main(): 
> >>     global app 
> >> 
> >>     app = QApplication(argv) 
> >> 
> >>     scene = QGraphicsScene() 
> >>     scene.addItem(MyItem()) 
> >> 
> >>     view = QGraphicsView() 
> >>     view.setScene(scene) 
> >> 
> >>     window = QMainWindow() 
> >>     window.setCentralWidget(view) 
> >>     window.show() 
> >> 
> >>     exit(app.exec_()) 
> >> 
> >> 
> >> if __name__ == '__main__': 
> >>     main() 
> >> 
> >> 
> >> Hope that helps. 
> >> 
> >> Best regards, 
> >> Elvis 
> >> 
> >> > 
> >> > Should I install the event filter in the QGraphicsItem class, or the 
> >> > scene? 
> >> > I tried both and I'm still not getting the desired result. I want to be 
> >> > able 
> >> > to hover over all the items in the scene. 
> >> > 
> >> > 
> >> > class HoverEventFilter(QtCore.QObject): 
> >> >     def eventFilter(self, receiver, event): 
> >> >         if (event.type() == QtCore.QEvent.HoverEnter): 
> >> >             # this is for test purposes 
> >> >             print 'hover event' 
> >> >             return True 
> >> >         else: 
> >> >             # Call Base Class Method to Continue Normal Event Processing 
> >> >             return super(HoverEventFilter, self).eventFilter(receiver, 
> >> > event) 
> >> > 
> >> > 
> >> > 
> >> > -- 
> >> > View this message in context: 
> >> > http://python.6.x6.nabble.com/Hover-Event-for-a-QGraphicsItem-tp5190283.html
> >> > Sent from the PyQt mailing list archive at Nabble.com. 
> >> > _______________________________________________ 
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> >> NAML 
> > 
> > 
> > 
> > ________________________________ 
> > View this message in context: Re: Hover Event for a QGraphicsItem 
> > 
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