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#if UNITY_EDITOR
using UnityEngine;
using UnityEditor;
using System.Linq;
using System.Collections.Generic;
namespace Lean.Common
{
/// <summary>This class allows you to quickly make custom inspectors with common features.</summary>
public class LeanInspector<T> : Editor
where T : Object
{
protected T Target;
protected T[] Targets;
private static readonly string[] propertyToExclude = new string[] { "m_Script" };
private static List<Color> colors = new List<Color>();
private static GUIContent customContent = new GUIContent();
public static void BeginError(bool error)
{
BeginError(error, Color.red);
}
public static void BeginError(bool error, Color color)
{
colors.Add(GUI.color);
GUI.color = error == true ? color : colors[0];
}
public static void EndError()
{
var index = colors.Count - 1;
GUI.color = colors[index];
colors.RemoveAt(index);
}
public static Rect Reserve()
{
var rect = EditorGUILayout.BeginVertical();
EditorGUILayout.LabelField(GUIContent.none);
EditorGUILayout.EndVertical();
return rect;
}
public override void OnInspectorGUI()
{
colors.Clear();
Target = (T)target;
Targets = targets.Select(t => (T)t).ToArray();
EditorGUI.BeginChangeCheck();
{
EditorGUILayout.Separator();
serializedObject.Update();
DrawInspector();
serializedObject.ApplyModifiedProperties();
EditorGUILayout.Separator();
}
if (EditorGUI.EndChangeCheck() == true)
{
GUI.changed = true; Repaint();
Dirty();
}
}
public virtual void OnSceneGUI()
{
Target = (T)target;
DrawScene();
}
protected void Each(System.Action<T> update, bool dirty = true)
{
if (dirty == true)
{
Undo.RecordObjects(Targets, "Inspector");
}
foreach (var t in Targets)
{
update(t);
}
if (dirty == true)
{
Dirty();
}
}
protected bool Any(System.Func<T, bool> check)
{
foreach (var t in Targets)
{
if (check(t) == true)
{
return true;
}
}
return false;
}
protected bool All(System.Func<T, bool> check)
{
foreach (var t in Targets)
{
if (check(t) == false)
{
return false;
}
}
return true;
}
protected bool DrawExpand(ref bool expand, string propertyPath, string overrideTooltip = null, string overrideText = null)
{
var rect = Reserve();
var property = serializedObject.FindProperty(propertyPath);
customContent.text = string.IsNullOrEmpty(overrideText ) == false ? overrideText : property.displayName;
customContent.tooltip = string.IsNullOrEmpty(overrideTooltip) == false ? overrideTooltip : property.tooltip;
EditorGUI.BeginChangeCheck();
EditorGUI.PropertyField(rect, property, customContent, true);
var changed = EditorGUI.EndChangeCheck();
expand = EditorGUI.Foldout(new Rect(rect.position, new Vector2(25.0f, rect.height)), expand, string.Empty);
return changed;
}
protected bool DrawMinMax(string propertyPath, float min, float max, string overrideTooltip = null, string overrideText = null)
{
var property = serializedObject.FindProperty(propertyPath);
var value = property.vector2Value;
customContent.text = string.IsNullOrEmpty(overrideText ) == false ? overrideText : property.displayName;
customContent.tooltip = string.IsNullOrEmpty(overrideTooltip) == false ? overrideTooltip : property.tooltip;
EditorGUI.BeginChangeCheck();
EditorGUILayout.MinMaxSlider(customContent, ref value.x, ref value.y, min, max);
if (EditorGUI.EndChangeCheck() == true)
{
property.vector2Value = value;
return true;
}
return false;
}
protected bool DrawEulerAngles(string propertyPath, string overrideTooltip = null, string overrideText = null)
{
var property = serializedObject.FindProperty(propertyPath);
var mixed = EditorGUI.showMixedValue;
customContent.text = string.IsNullOrEmpty(overrideText ) == false ? overrideText : property.displayName;
customContent.tooltip = string.IsNullOrEmpty(overrideTooltip) == false ? overrideTooltip : property.tooltip;
EditorGUI.BeginChangeCheck();
EditorGUI.showMixedValue = property.hasMultipleDifferentValues;
var oldEulerAngles = property.quaternionValue.eulerAngles;
var newEulerAngles = EditorGUILayout.Vector3Field(customContent, oldEulerAngles);
if (oldEulerAngles != newEulerAngles)
{
property.quaternionValue = Quaternion.Euler(newEulerAngles);
}
EditorGUI.showMixedValue = mixed;
return EditorGUI.EndChangeCheck();
}
protected bool Draw(string propertyPath, string overrideTooltip = null, string overrideText = null)
{
var property = serializedObject.FindProperty(propertyPath);
customContent.text = string.IsNullOrEmpty(overrideText ) == false ? overrideText : property.displayName;
customContent.tooltip = string.IsNullOrEmpty(overrideTooltip) == false ? overrideTooltip : property.tooltip;
EditorGUI.BeginChangeCheck();
EditorGUILayout.PropertyField(property, customContent, true);
return EditorGUI.EndChangeCheck();
}
protected virtual void DrawInspector()
{
DrawPropertiesExcluding(serializedObject, propertyToExclude);
}
protected virtual void DrawScene()
{
}
protected void Dirty()
{
for (var i = targets.Length - 1; i >= 0; i--)
{
EditorUtility.SetDirty(targets[i]);
}
serializedObject.Update();
}
}
}
#endif
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