How to access chartview in chat

IknowQT

It is possible to access the chart from the chatview, but is there a way to access the chartview from the chart?

JonB

@IknowQT
Like QGraphicsScene/QGraphicsView, and other Qt model-views like QAbstractTableModel/QTableView, the view is attached to, and can see, the backing model/scene/chart, but that does not have access to any view(s) (might be multiple) which might be attached to it.

The first question to ask yourself is: why does the chart need any access to a view? It is not supposed to, and may indicate a bad approach.

If you do want that for whatever reason, subclass the QChart and add a member variable which you set to the single QChartView you want it to be able to access.

IknowQT

@JonB said in How to access chartview in chat:

스스로에게 묻는 첫 번째 질문은 다음과 같습니다. 차트에 보기에 대한 액세스 권한이 필요한 이유는 무엇입니까? 그

I wanted to get the geometry value of the chart view, so I made a set function manually to get the value.
A sudden thought occurred to me that the parent could be called from the chart because there is a chart under the chart view.

JonB

@IknowQT said in How to access chartview in chat:

I wanted to get the geometry value of the chart view, so I made a set function manually to get the value.

Why would your QChart code want to know or care about what the geometry of some particular QChartView is? It should not.