public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
//重载BeginProperty
using (new EditorGUIBeginPropertyScope(position, label, property))
{
//Unity默认的每个属性字段都会占用一行，我们这里希望一条自定义Property占一行
//要是实现这个要求我们分三步： 1. 取消缩进 2. 设置PropertyField 3.还原缩进
//不要缩进子字段，只有取消了缩进，Rect挤才一行才不会混乱
using (new EditorGUIIndentLevelScope(-EditorGUI.indentLevel))
{
//计算要用到的属性显示rect Rect(x,y,width,height)x,y是左顶点
float splitWidth = 5;
float typeNameLableRectWidth = 30;
float typeNameRectWidth = 100;
float valueLableRectWidth = 40;
float valueRectWidth = 100;
var typeLableRect = new Rect(position.x, position.y, typeNameLableRectWidth, position.height);
var typeRect = new Rect(typeLableRect.xMax + splitWidth, position.y, typeNameRectWidth,
position.height);
var valueLableRect = new Rect(typeRect.xMax + splitWidth, position.y, valueLableRectWidth,
position.height);
var valueRect = new Rect(valueLableRect.xMax + splitWidth, position.y, valueRectWidth,
position.height);
var valueParseTypeList =
ValueParseUtil.GetValueParseList().ConvertAll(e => ((Type)e["type"])).ToList();
var valueParseTypeFullNames = valueParseTypeList.ConvertAll(e => e.FullName).ToArray();
var valueParseTypeDisplayNames =
valueParseTypeList.ConvertAll(e => e.Name.ToGUIContent()).ToArray();
//绘制字段 - 将GUIContent.none传递给每个字段，以便绘制它们而不是用标签
//属性绘制器不支持布局来创建GUI;
//因此，您必须使用的类是EditorGUI而不是EditorGUILayout。这就是为什么要给每个属性指定Rect
EditorGUI.PrefixLabel(typeLableRect, "type:".ToGUIContent());
int selectedIndex = EditorGUI.Popup(typeRect, GUIContent.none,
property.FindPropertyRelative("typeName") == null
? -1
: valueParseTypeFullNames.IndexOf(property.FindPropertyRelative("typeName").stringValue),
valueParseTypeDisplayNames);
if (selectedIndex != -1)
{
property.FindPropertyRelative("typeName").stringValue = valueParseTypeFullNames[selectedIndex];
property.FindPropertyRelative("assembleName").stringValue =
valueParseTypeList[selectedIndex].Assembly.FullName;
}
EditorGUI.PrefixLabel(valueLableRect, "value:".ToGUIContent());
EditorGUI.PropertyField(valueRect, property.FindPropertyRelative("value"), GUIContent.none);
}
}
}
public object Parse()
{
if (tmp != null)
{
return(tmp);
}
var targetType = TypeUtil.GetType(typeName, assembleName);
var list = ValueParseUtil.GetValueParseList();
for (var i = 0; i < list.Count; i++)
{
var hashtable = list[i];
var type = (Type)hashtable[StringConst.String_type];
var parseFunc = (Delegate)hashtable[StringConst.String_parseFunc];
if (type == targetType)
{
return(parseFunc.DynamicInvoke(value));
}
}
return(null);
}