I am trying to connect to the mouse-enter event of QGraphicsItems that are placed onto a QGraphicsScene and visualized through a QGraphicsView. From what I understand, the method to override for this
I have a problem with a QGrahicsRectItem in a QGraphicsScene. What I would like is to be able to move the item with mouse. But the problem is that in my case, the dragging rectangle is bigger than the
I have an image I am trying to display in a QImage. This is the snippet of code that populates the rows*cols image:
I want to know the size of a certain QGraphicsView. Its size isn\'t fixed because the widget is part of a grid layout. I tried using this->ui->myGraphicsView->width() and its height equivalen
I am using QGraphicsScene/QGraphicsView pair in my project I have performance issue with this pair. I added my custom graphics items to scene and displayed the contents with view. After that my custom
I was wondering... if I allocate a graphics scene QGraphicsScene* scene = new QGraphicsScene(); and associate it with a graphics view
Please can anyone tell me how to convert a JChart into csv format , so that I can save the char开发者_JAVA百科t data into csv formattry getting the column and row count and keys, them access each valu
I am currently able to load my image into a grahpics scene, and then again into a QGraphicsViewer. I am able to implement a zoom feature by dtecting a QEvent::Wheel and then calling the graphicsViews
In my application I used custom objects which derive from QGraphicsWidget and I put them inside QGraphicsLinearLayout. But now I need to find scene co开发者_StackOverflow社区ordinates of each item. Is
I have created an Scene in Qt where i took the an image from open street map[.png] and placed it into the Sce开发者_如何学JAVAne . I have also exported its coordinates in an another file .My Question
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