Use Custom PropertyDrawer in CustomEditor without PropertyAttribute

Hello there,

So I'm wondering for quite some time now: Is it possible to use a custom propertydrawer in a custom editor on any property (and even just object references) that don't have the property assigned.

So for example: I have a customPropertyDrawer for MinMaxAttribute and I would like to do something like

Code (CSharp):

1. // Draw a property with a drawer it is not assigned to
2. EditorGUILayout.PropertyField(property, "Property with other drawer", new PropertyGUILayoutOption(typeof(MinMaxAttribute)));
3.  
4. // Draw a object reference with a custom drawer
5. EditorGUILayout.ObjectField("object reference", customObject,  typeof(Vector2), new PropertyGUILayoutOption(typeof(MinMaxAttribute)));

Is there anything out there that might fulfill my dreams? Or how are you solving the problem of not writing the same code again for a object reference field that is not directly serialized in your class?

 

You can instantiate your drawer and call OnGUI() with your property:

Code (CSharp):

1. SerializedProperty property = serializedObject.FindProperty("yourPropertyName");
2. MinMaxDrawer drawer = new MinMaxDrawer();
3. drawer.attribute = new MinMaxAttribute(0f, 1f);
4. GUIContent content = new GUIContent(property.displayName);
5. Rect drawerRect = EditorGUILayout.GetControlRect(true, drawer.GetPropertyHeight(property, content));
6. drawer.OnGUI(drawerRect, property, content);

Enjoy!

 

Wow, that's exactly what I was searching for! Very interesting code snippet, I completely missed GetControlRect in the documentation. Thanks a lot for the quick reply!