Adding Rectangular overlay on graphics view

**forrestfsu** · 21st November 2006, 14:10

How exactly am I supposed to call this function for a particular graphicsView? Is there a specific QPainter pointer that I need to pass as a parameter that is related to the specific graphicsView? I'm just unclear as to how and when this drawForeground function is being called.

**aamer4yu** · 21st November 2006, 14:56

u need not call this function... it is called automatically.
U just need to override it in ur scene class and do the drawing using the painter pointer provided

**forrestfsu** · 21st November 2006, 16:06

I think I'm beginning to understand what you've all been talking about. But the QGraphicsView's that I'm using were all added to the same widget using Qt Designer. Am I supposed to write a class for each graphicsView that I added in designer? If so, how can I write a class for each individual graphicsView? Or am I still way of target?

**jpn** · 21st November 2006, 16:19

Qt Designer has a widget promotion feature. Subclass QGraphicsView, open context menu over the graphics view widget in the designer and choose "Promote to Custom Widget".

**forrestfsu** · 21st November 2006, 19:42

Thanks everyone! I got it working using a variety of all your tips. Mainly I used the widget promotion in designer, and then subclassed QGraphicsView to do what I wanted.