private static void CustomInspectorGUI(SerializedObject serializedObject, Object target, MonoInspector editor)
{
//这部分是使用了反编译Editor的代码
EditorGUI.BeginChangeCheck();
serializedObject.Update();
SerializedProperty iterator = serializedObject.GetIterator();
for (bool enterChildren = true; iterator.NextVisible(enterChildren); enterChildren = false)
{
using (new EditorGUI.DisabledScope("m_Script" == iterator.propertyPath))
{
FieldInfo fieldInfos = target.GetType().GetField(iterator.name);
if (fieldInfos == null)
{
EditorGUILayout.PropertyField(iterator, true);
continue;
}
//检查ShowIf特性
if (CheckShowIf(iterator, target))
{
//准备style
if (sStyles == null)
{
sStyles = new Styles();
}
if (iterator.isArray && iterator.propertyType == SerializedPropertyType.Generic)
{
//绘制Array、List<>
ListField(iterator, editor);
}
else
{
EditorGUILayout.PropertyField(iterator, true);
}
}
}
}
serializedObject.ApplyModifiedProperties();
EditorGUI.EndChangeCheck();
}
//internal static float GetHeaderAttributeHeight(SerializedProperty serializedProperty)
//{
// Object target = serializedProperty.serializedObject.targetObject;
// FieldInfo fieldInfo = target.GetType().GetField(serializedProperty.name);
// if (fieldInfo == null)
// {
// return 0;
// }
// Type tButtonExAttribute = typeof(HeaderAttribute);
// if (Attribute.IsDefined(fieldInfo, tButtonExAttribute, true))
// {
// return fieldInfo.GetCustomAttributes(tButtonExAttribute, true).Length * 24f;
// }
// return 0;
//}
private static void ListField(SerializedProperty iterator, MonoInspector editor)
{
editor.nListId++;
int dragId = editor.nListId + editor.nObjectId;
GUILayout.BeginHorizontal();
GUILayout.Space(10);
EditorGUILayout.PropertyField(iterator,
new GUIContent(string.Format("[{0}] {1}", iterator.arraySize, iterator.displayName)), false);
GUILayout.EndHorizontal();
Rect position = GUILayoutUtility.GetLastRect();
position.x = 2;
position.width = 10;
float heightDelta = position.height - 16;
if (heightDelta > 0)
{
position.height = 16;
position.y += heightDelta;
}
//上移16高度绘制“+”、“清空”按钮
GUILayout.Space(-18);
GUILayout.BeginHorizontal();
GUILayout.FlexibleSpace();
if (GUILayoutPressButton(sStyles.iconPlus, sStyles.preButton, GUILayout.Width(16)) ==
ButtonPressType.Mouse0)
{
//添加一个元素
iterator.isExpanded = true;
iterator.InsertArrayElementAtIndex(iterator.arraySize);
Event.current.type = EventType.Used;
editor.Repaint();
}
Color currColor = GUI.backgroundColor;
GUI.backgroundColor = Color.red;
if (GUILayoutPressButton(sStyles.iconTrash, sStyles.preButton, GUILayout.Width(16)) ==
ButtonPressType.Mouse0)
{
//清空列表
iterator.isExpanded = true;
iterator.ClearArray();
MonoInspectorDrag.EndDrag(false);
Event.current.type = EventType.Used;
editor.Repaint();
}
GUI.backgroundColor = currColor;
GUILayout.EndHorizontal();
//显示折叠
if (!iterator.isExpanded || iterator.serializedObject == null || iterator.arraySize == 0)
{
return;
}
//为拖拽准备一个IList
IList iList = null;
int minListLen = int.MaxValue;
Type type = editor.target.GetType();
FieldInfo fInfo = type.GetField(iterator.name,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
while (fInfo == null && type != typeof(Object))
{
type = type.BaseType;
if (type == null)
{
break;
}
fInfo = type.GetField(iterator.name,
BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
}
for (int index = 0; index < editor.targets.Length; index++)
{
Object o = editor.targets[index];
IList li = fInfo.GetValue(o) as IList;
int l = li == null ? 0 : li.Count;
if (l >= minListLen)
{
continue;
}
iList = li;
minListLen = l;
}
//绘制列表元素
Undo.RecordObject(iterator.serializedObject.targetObject, iterator.serializedObject.targetObject.name);
if (Event.current.type == EventType.DragPerform || Event.current.type == EventType.DragExited ||
Event.current.type == EventType.DragUpdated)
{
for (int i = 0; i < iterator.arraySize; i++)
{
SerializedProperty spArrayElement = iterator.GetArrayElementAtIndex(i);
EditorGUILayout.PropertyField(spArrayElement, spArrayElement.hasChildren); // Property
}
return;
}
EditorGUILayout.BeginVertical(sStyles.list);
for (int i = 0; i < iterator.arraySize; i++)
{
SerializedProperty spArrayElement = iterator.GetArrayElementAtIndex(i);
EditorGUILayout.BeginHorizontal();
float currLabelW = EditorGUIUtility.labelWidth;
EditorGUIUtility.labelWidth -= 25;
bool wasEnabled = GUI.enabled;
if (editor.targets.Length > 1)
{
GUI.enabled = false;
}
//按方块开始拖拽
ButtonPressType bpt = GUILayoutPressButton(GUIContent.none, sStyles.listItem);
if (bpt == ButtonPressType.Mouse1)
{
MonoInspectorDrag.StartDrag(dragId, editor, iList, i);
}
GUI.enabled = wasEnabled;
if (spArrayElement.hasVisibleChildren)
{
GUILayout.Label(i.ToString(), sStyles.button);
GUILayout.Space(10);
}
EditorGUILayout.PropertyField(spArrayElement, spArrayElement.hasChildren); // Property
if (GUILayout.Button(sStyles.iconPlus, sStyles.preButton, GUILayout.Width(16)))
{
iterator.InsertArrayElementAtIndex(i);
EditorGUILayout.EndHorizontal();
break;
}
if (GUILayout.Button(sStyles.iconMinus, sStyles.preButton, GUILayout.Width(16)))
{
if (spArrayElement.propertyType == SerializedPropertyType.ObjectReference &&
spArrayElement.objectReferenceValue != null)
{
iterator.DeleteArrayElementAtIndex(i);
}
iterator.DeleteArrayElementAtIndex(i);
EditorGUILayout.EndHorizontal();
break;
}
EditorGUIUtility.labelWidth = currLabelW;
EditorGUILayout.EndHorizontal();
if (MonoInspectorDrag.Drag(dragId, iList, i).outcome == DragResultType.Accepted)
{
GUI.changed = true;
}
}
EditorGUILayout.EndHorizontal();
if (iterator.isExpanded)
{
GUILayout.Space(3);
GUILayout.Box(string.Empty, sStyles.endBackground, GUILayout.ExpandWidth(true), GUILayout.Height(2));
}
}