QCharts Crop to Rectangle and Use Horizontal Scroll

[ARC_DEV]

I am trying to implement a custom graph going off the QtCharts Callout example. I want to restrict the selection of the chart to a specific area and make it possible to scroll horizontally while still displaying the Axis Values.

the classes i am using are below
callout.cpp
callout.h
main.cpp
view.cpp
view.h

here is an example of what i mean

say i want the selection region point1 = (5,0) point2 = (15,8) and the region is a QRect(point1,point2)