public static Enum EnumPopupEx(string label, Enum value, ref bool changed, GUIStyle style, params GUILayoutOption[] options)
{
//通过反射获取到枚举列表
FieldInfo[] fields = value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public);
string[] popup = new string[fields.Length];
//获取对应Comment属性，生成菜单列表
int selected = 0;
for (int i = 0; i < fields.Length; i++)
{
CommentAttribute attr = fields[i].GetCustomAttributes(typeof(CommentAttribute), false).FirstOrDefault() as CommentAttribute;
popup[i] = attr != null ? attr.Comment : fields[i].Name;
if (fields[i].GetValue(null).Equals(value))
{
selected = i;
}
}
//弹出菜单
selected = Popup(label, selected, popup, ref changed, options);
if (fields.Length > 0)
{
value = (Enum)fields[selected].GetValue(null);
}
return(value);
}
public static int EnumMaskToggle(string label, Enum value, ref bool changed, params GUILayoutOption[] options)
{
int maskValue = (int)(object)value;
int newMaskValue = 0;
EditorGUILayout.LabelField(label);
EditorGUI.indentLevel++;
FieldInfo[] fields = value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public);
for (int i = 0; i < fields.Length; i++)
{
CommentAttribute attr = fields[i].GetCustomAttributes(typeof(CommentAttribute), false).FirstOrDefault() as CommentAttribute;
string text = attr != null ? attr.Comment : fields[i].Name;
int itemValue = (int)fields[i].GetValue(null);
bool toggle = (itemValue & maskValue) != 0;
toggle = Toggle(text, toggle, ref changed);
if (toggle)
{
newMaskValue |= itemValue;
}
}
EditorGUI.indentLevel--;
return(newMaskValue);
}
///unity的那个有个bug，如果自己包含值为0的这个选项，菜单里就会出现两个none。第二个none的值会映射第一个选项
public static Enum EnumMaskFieldEx(string label, Enum value, ref bool changed, GUIStyle style,
params GUILayoutOption[] layoutOptions)
{
int maskValue = (int)(object)value;
int newMaskValue;
List <EnumMaskItem> itemList = new List <EnumMaskItem>();
FieldInfo[] fields = value.GetType().GetFields(BindingFlags.Static | BindingFlags.Public);
//获取列表
for (int i = 0; i < fields.Length; i++)
{
CommentAttribute attr = fields[i].GetCustomAttributes(typeof(CommentAttribute), false).FirstOrDefault() as CommentAttribute;
string text = attr != null ? attr.Comment : fields[i].Name;
int itemValue = (int)fields[i].GetValue(null);
//跳过0和-1
if (itemValue == 0 || itemValue == -1)
{
continue;
}
itemList.Add(new EnumMaskItem()
{
Value = itemValue,
Text = text,
IsSelected = (itemValue & maskValue) != 0,
});
}
//生成列表的选项
string[] options = new string[itemList.Count];
for (int i = 0; i < itemList.Count; i++)
{
options[i] = itemList[i].Text;
}
//生成列表选项的索引和选项项
int itemSelectMask = 0;
if (maskValue == 0 || maskValue == -1)
{
itemSelectMask = maskValue;
}
else
{
for (int i = 0; i < itemList.Count; i++)
{
if (itemList[i].IsSelected)
{
itemSelectMask |= 1 << i;//unity的返回的1是第一个，0是全不选
}
}
}
//显示选项
var selects = EditorGUILayout.MaskField(label, itemSelectMask, options, style, layoutOptions);
if (selects != itemSelectMask)
{
changed = true;
//从选项中获取枚举值mask
if (selects == 0 || selects == -1)
{
newMaskValue = selects;
}
else
{
newMaskValue = 0;
for (int i = 0; i < itemList.Count; i++)
{
if ((selects & (1 << i)) != 0)
{
newMaskValue |= itemList[i].Value;
}
}
}
}
else
{
newMaskValue = maskValue;
}
return((Enum)Enum.ToObject(value.GetType(), newMaskValue));
}
