Mac problems

[BrunoLevy]

Issues related with Mac virtual resolution / physical resolution thingy (Retina displays)

• Default font size is HUGE
  • In geogram, we no longer multiply font size by hidpiscaling_ (seems that Dear ImGui does that on its own)
• Selection painting tools select at the right position, but overlay is drawn shifted / scaled
• Current object menu auto-grows horizontally until it fills the entire window
  • comes from imgui.Dummy() spacers that are too large
  • OK, removed dummy spacers
• Icons are tiny, and image is cropped
  • Application::scaling() no longer does hidpi scaling, seems that Dear ImGui does that on its own
• centering 3D view on barycenter of free ImGui area does not work
• File dialog appears too small first time it is opened
• Text editor: spacing between lines is too small (needs to be multiplied by highdpiscaling ?)
  -> fixed (TO BE TESTED) in fact needs not to be multiplied by hidpiscaling, Dear ImGui does it already.

It seems that only things displayed by Dear ImGui are affected.