Display current slider values (UVC values)

[JayFoxRox]

I'd like to reproduce the work in https://ciko.io/posts/cheap_usb_hdmi/ and https://ciko.io/posts/cheap_usb_hdmi_2/

However, while CameraController can change my capture device settings (although I don't have the "hue" parameter?), I have no way of seeing the current values (= reproducing the values by someone else). This makes it extremly difficult to reproduce the results (or even to experiment with a setting and then go back to the old value, without creating a profile).

In an ideal world there'd be a way to show the technical UVC details (which are more important to me) if enabled under preferences, otherwise show percentages (which would be more important for the average user).

[Itaybre]

This feature was implemented in this PR: https://github.com/Itaybre/CameraController/pull/35/files#diff-3fc0120903ade031e9cf8976e371da4027e69a9130fa517589c417f0c6c15c05 You can press the name of the button to enable / disable manual input.

I didn't add HUE control because most cameras don't support it, can't say I considered video capture cards when building this. But adding support for it should be fairly easy with a couple lines of code:

• Add this to ImageView.swift after line 49:

  HStack {
  Toggle(isOn: $controller.hueAuto.isEnabled) {
      Text("Auto")
  }
  .disabled(!controller.hueAuto.isCapable)
  
  Spacer()
  Slider(value: $controller.hue.sliderValue,
         in: controller.hue.minimum...controller.hue.maximum)
      .frame(width: 300, height: 15)
      .disabled(!controller.hue.isCapable)
  }

• Add this to DeviceController.swift after line 20:

  @Published var hue: NumberCaptureDeviceProperty
  @Published var hueAuto: BoolCaptureDeviceProperty

• Add this to DeviceController.swift anywhere inside init (I did in line 46):

  hue = NumberCaptureDeviceProperty(properties.hue)
  hueAuto = BoolCaptureDeviceProperty(properties.hueAuto)