XCharts/Scripts/Editor/PropertyDrawers/AxisTickDrawer.cs

using UnityEditor;
using UnityEngine;

namespace XCharts
{
    [CustomPropertyDrawer(typeof(Axis.AxisTick), true)]
    public class AxisTickDrawer : PropertyDrawer
    {
        private bool m_AxisTickToggle = false;

        public override void OnGUI(Rect pos, SerializedProperty prop, GUIContent label)
        {
            Rect drawRect = pos;
            drawRect.height = EditorGUIUtility.singleLineHeight;
            SerializedProperty show = prop.FindPropertyRelative("m_Show");
            SerializedProperty m_AlignWithLabel = prop.FindPropertyRelative("m_AlignWithLabel");
            SerializedProperty m_Inside = prop.FindPropertyRelative("m_Inside");
            SerializedProperty m_Length = prop.FindPropertyRelative("m_Length");

            ChartEditorHelper.MakeFoldout(ref drawRect, ref m_AxisTickToggle, "Axis Tick", show, false);
            drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
            if (m_AxisTickToggle)
            {
                ++EditorGUI.indentLevel;
                EditorGUI.PropertyField(drawRect, m_AlignWithLabel);
                drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
                EditorGUI.PropertyField(drawRect, m_Inside);
                drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
                EditorGUI.PropertyField(drawRect, m_Length);
                drawRect.y += EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
                --EditorGUI.indentLevel;
            }
        }

        public override float GetPropertyHeight(SerializedProperty prop, GUIContent label)
        {
            float height = 0;
            if (m_AxisTickToggle)
            {
                height += 3 * EditorGUIUtility.singleLineHeight + 2 * EditorGUIUtility.standardVerticalSpacing;
            }
            return height;
        }
    }
}