OnSceneGUI with PropertyDrawer

Question

I have a PropertyDrawer which draws a certain class as a button. When that button is pressed, I need to start capturing scene events (clicks in the scene, etc.) with OnSceneGUI, but it appears to be unsupported by PropertyDrawer. How come? What can I do to remedy?

Answer 1

Answer by Adam-Mechtley · Jan 08, 2017 at 09:48 AM

You probably need to do something like make your PropertyDrawer enable/disable some static flag like MyPropertyType.IsInEditMode = true which you would then test as necessary in your custom editor's OnSceneGUI callback.

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Answer 2

Answer by sotirosn · Sep 08, 2017 at 06:06 PM

As far as I know class properties are not passed to the scene directly. Only entire MonoBehaviour go the scene. You would think that custom property drawers would also have a hook into the scene view, but probably no one has implemented it yet.

So you need to use a UnityEditor.Editor with CustomEditor(typeof(ClassUsingTheProperty)) to activate its OnSceneGUI and then start collecting events. This unfortunately means copy pasting code for every single class type that uses the property.

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OnSceneGUI with PropertyDrawer

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