propertydrawereditor

gistfile1.cs

// C# example.
using UnityEngine;
using UnityEditor;
using System.Collections;

[CustomPropertyDrawer(typeof(ActionInput))]
public class ActionInputDrawer : PropertyDrawer {
	public int rows = 1;
	// Draw the property inside the given rect
	public override void OnGUI(Rect position, SerializedProperty property, GUIContent label) {
		// Using BeginProperty / EndProperty on the parent property means that
		// prefab override logic works on the entire property.
		// calculate the height of the control based on the the type of control
		int height = 1;
		rows = 1;
		float originalHeight = position.height;
		if (property.FindPropertyRelative ("action").enumValueIndex == (int)ActionInput.ActionType.PRESS_KEY) {
			height = 2;
			rows = 2;
		}
		position.height *= height;

		EditorGUI.BeginProperty(position, label, property);
		// Draw label
//		position = EditorGUI.PrefixLabel(position, GUIUtility.GetControlID(FocusType.Passive), label);

		// Don't make child fields be indented
		int indent = EditorGUI.indentLevel;
		EditorGUI.indentLevel = 0;

		// Calculate rects
		Rect amountRect = new Rect(position.x, position.y, position.width, originalHeight);
		Rect secondRect = new Rect(position.x, position.y+originalHeight, position.width, originalHeight);

		// Draw fields - passs GUIContent.none to each so they are drawn without labels
		EditorGUI.PropertyField (amountRect, property.FindPropertyRelative ("action"), GUIContent.none);
		switch ((ActionInput.ActionType)property.FindPropertyRelative ("action").enumValueIndex) {
		case ActionInput.ActionType.PRESS_KEY:
			EditorGUI.PropertyField (secondRect, property.FindPropertyRelative ("keyToPress"), GUIContent.none);
			break;
		case ActionInput.ActionType.OBJECT_ACTIVE:
			EditorGUI.PropertyField (secondRect, property.FindPropertyRelative ("objectCheck"), GUIContent.none);
			break;
		}
		// Set indent back to what it was
		EditorGUI.indentLevel = indent;

		EditorGUI.EndProperty();
	}
	public override float GetPropertyHeight(SerializedProperty property, GUIContent label)
	{
		return rows*20;
	}

}