Size and scale fields in GUI

[therob762]

The size and scale fields in the GUI do not update with values set in the loaded .json file.

[bkloppenborg]

This should be fairly straightforward to fix. You would need modify the gui_main::on_mdiArea_subWindowActivated() function to query the active widget for its size and scale then update the boxes in the GUI (this->spinModelSize and this->spinModelScale) with the new values.

I should note that in my gui_overhaul branch the window size and scale fields will no longer be displayed on the main window as I haven't found them that useful in my work. I could add this information back in somewhere, but I presently have no intention of doing so unless someone makes a really compelling argument as to how often they use this information.

[bkloppenborg]

Size and scale boxes were removed in b3128c0 thus the proposed fix above is no longer applicable. I think we could modify the CGLWidget to be a stand-alone GUI element which also includes this information below the model region.