/// <summary>
/// Draws the specified object.
/// </summary>
/// <param name="guiContent">The GUIContent to draw with the associated object.</param>
/// <param name="type">The type of object to draw.</param>
/// <param name="value">The value of the object.</param>
/// <param name="name">The name of the object being drawn.</param>
/// <param name="hashPrefix">The prefix of the hash from the parent class. This value will prevent collisions with similarly named objects.</param>
/// <param name="valuePositionMap">A map between the value hash and the position within the positions array.</param>
/// <param name="serialization">The serialized data.</param>
/// <param name="fieldProperty">A reference to the field or property that is being drawn.</param>
/// <param name="drawFields">Should the fields be drawn? If false the properties will be drawn.</param>
/// <returns>The drawn object.</returns>
private static object DrawSingleObject(GUIContent guiContent, Type type, object value, string name, int hashPrefix, Dictionary <int, int> valuePositionMap, Serialization serialization, object fieldProperty, bool drawFields)
{
if (type == typeof(int))
{
return(EditorGUILayout.IntField(guiContent, (int)value));
}
if (type == typeof(float))
{
// The range attribute may be used instead.
if (drawFields)
{
var field = (System.Reflection.FieldInfo)fieldProperty;
var rangeAttribute = field.GetCustomAttributes(typeof(RangeAttribute), false) as RangeAttribute[];
if (rangeAttribute != null && rangeAttribute.Length > 0)
{
return(EditorGUILayout.Slider(guiContent, (float)value, rangeAttribute[0].min, rangeAttribute[0].max));
}
}
return(EditorGUILayout.FloatField(guiContent, (float)value));
}
if (type == typeof(double))
{
return(EditorGUILayout.FloatField(guiContent, Convert.ToSingle((double)value)));
}
if (type == typeof(long))
{
return((long)EditorGUILayout.IntField(guiContent, Convert.ToInt32((long)value)));
}
if (type == typeof(bool))
{
return(EditorGUILayout.Toggle(guiContent, (bool)value));
}
if (type == typeof(string))
{
return(EditorGUILayout.TextField(guiContent, (string)value));
}
if (type == typeof(byte))
{
return(Convert.ToByte(EditorGUILayout.IntField(guiContent, Convert.ToInt32(value))));
}
if (type == typeof(Vector2))
{
return(EditorGUILayout.Vector2Field(guiContent, (Vector2)value));
}
if (type == typeof(Vector3))
{
return(EditorGUILayout.Vector3Field(guiContent, (Vector3)value));
}
if (type == typeof(Vector4))
{
return(EditorGUILayout.Vector4Field(guiContent, (Vector4)value));
}
if (type == typeof(Quaternion))
{
var quaternion = (Quaternion)value;
var vectorValue = Vector4.zero;
vectorValue.Set(quaternion.x, quaternion.y, quaternion.z, quaternion.w);
vectorValue = EditorGUILayout.Vector4Field(name, vectorValue);
quaternion.Set(vectorValue.x, vectorValue.y, vectorValue.z, vectorValue.w);
return(quaternion);
}
if (type == typeof(Color))
{
return(EditorGUILayout.ColorField(guiContent, (Color)value));
}
if (type == typeof(Rect))
{
return(EditorGUILayout.RectField(guiContent, (Rect)value));
}
if (type == typeof(Matrix4x4))
{
var matrix = (Matrix4x4)value;
if (InspectorUtility.Foldout(value, guiContent))
{
EditorGUI.indentLevel++;
for (int i = 0; i < 4; ++i)
{
for (int j = 0; j < 4; ++j)
{
matrix[i, j] = EditorGUILayout.FloatField("E" + i.ToString() + j.ToString(), matrix[i, j]);
}
}
EditorGUI.indentLevel--;
}
return(matrix);
}
if (type == typeof(AnimationCurve))
{
if (value == null)
{
value = AnimationCurve.EaseInOut(0, 0, 1, 1);
GUI.changed = true;
}
return(EditorGUILayout.CurveField(guiContent, (AnimationCurve)value));
}
if (type == typeof(LayerMask))
{
return(DrawLayerMask(guiContent, (LayerMask)value));
}
if (type.IsEnum)
{
if (type.IsDefined(typeof(FlagsAttribute), true))
{
return(EditorGUILayout.MaskField(guiContent, (int)value, Enum.GetNames(type)));
}
return(EditorGUILayout.EnumPopup(guiContent, (Enum)Enum.ToObject(type, value)));
}
if (typeof(UnityEngine.Object).IsAssignableFrom(type))
{
return(EditorGUILayout.ObjectField(guiContent, (UnityEngine.Object)value, type, true));
}
if (type.IsClass || (type.IsValueType && !type.IsPrimitive)) // Classes and structs.
{
if (typeof(Delegate).IsAssignableFrom(type)) // Delegates are not supported.
{
return(null);
}
if (s_DrawnObjects == null)
{
s_DrawnObjects = new HashSet <int>();
}
// Do not endlessly loop on objects that have already been drawn.
var hash = name.GetHashCode();
if (s_DrawnObjects.Contains(hash))
{
return(null);
}
else
{
try { // Unity may throw an exception so catch it to clean up.
s_DrawnObjects.Add(hash);
GUILayout.BeginVertical();
if (value == null)
{
value = Activator.CreateInstance(type);
GUI.changed = true;
}
if (InspectorUtility.Foldout(value, guiContent))
{
EditorGUI.indentLevel++;
var inspectorDrawer = InspectorDrawerUtility.InspectorDrawerForType(type);
if (inspectorDrawer != null)
{
inspectorDrawer.OnInspectorGUI(value, null);
}
else if (drawFields)
{
value = DrawFields(value, true, hashPrefix + Serialization.StringHash(type.FullName) + Serialization.StringHash(name));
}
else
{
value = DrawProperties(type, value, hashPrefix + Serialization.StringHash(type.FullName) + Serialization.StringHash(name), valuePositionMap, serialization, MemberVisibility.Public, null, null);
}
EditorGUI.indentLevel--;
}
GUILayout.EndVertical();
s_DrawnObjects.Remove(hash);
return(value);
} catch (Exception /*e*/) {
// Clean up any exceptions.
EditorGUI.indentLevel--;
GUILayout.EndVertical();
s_DrawnObjects.Remove(hash);
return(null);
}
}
}
Debug.LogWarning("Warning: unsupported value type: " + type);
return(null);
}
/// <summary>
/// Draws the specified array object.
/// </summary>
/// <param name="guiContent">The GUIContent to draw with the associated object.</param>
/// <param name="type">The type of object to draw.</param>
/// <param name="parent">The parent of the value.</param>
/// <param name="value">The value of the object.</param>
/// <param name="name">The name of the object being drawn.</param>
/// <param name="hashPrefix">The prefix of the hash from the parent class. This value will prevent collisions with similarly named objects.</param>
/// <param name="valuePositionMap">A map between the value hash and the position within the positions array.</param>
/// <param name="serialization">The serialized data.</param>
/// <param name="fieldProperty">A reference to the field or property that is being drawn.</param>
/// <param name="drawFields">Should the fields be drawn? If false the properties will be drawn.</param>
/// <returns>The drawn object.</returns>
private static object DrawArrayObject(GUIContent guiContent, Type type, object parent, object value, string name, int hashPrefix, Dictionary <int, int> valuePositionMap, Serialization serialization, object fieldProperty, bool drawFields)
{
// Arrays and lists operate differently when retrieving the element type.
Type elementType;
if (type.IsArray)
{
elementType = type.GetElementType();
}
else
{
var baseFieldType = type;
while (!baseFieldType.IsGenericType)
{
baseFieldType = baseFieldType.BaseType;
}
elementType = baseFieldType.GetGenericArguments()[0];
}
// Create the list value if it is null. The list cannot be null.
IList list;
if (value == null)
{
if (type.IsGenericType || type.IsArray)
{
list = Activator.CreateInstance(typeof(List <>).MakeGenericType(elementType), true) as IList;
}
else
{
list = Activator.CreateInstance(type, true) as IList;
}
if (type.IsArray)
{
// Copy to an array so SetValue will accept the new value.
var array = Array.CreateInstance(elementType, list.Count);
list.CopyTo(array, 0);
list = array;
}
}
else
{
list = (IList)value;
}
EditorGUILayout.BeginVertical();
if (InspectorUtility.Foldout(list, guiContent))
{
EditorGUI.indentLevel++;
var hash = hashPrefix + (parent != null ? parent.GetHashCode() : 0) + Serialization.StringHash(type.FullName) + Serialization.StringHash(name);
// s_EditingArray is static so s_FocusHash is necessary so the array that is being modified can be identified.
if (s_EditingArray && s_FocusHash == hash && (s_KeybordControl != GUIUtility.keyboardControl || Event.current.keyCode == KeyCode.Return || Event.current.keyCode == KeyCode.KeypadEnter))
{
s_EditingArray = false;
var newArray = Array.CreateInstance(elementType, s_ArraySize);
var origElement = -1;
// Copy all of the old values to the new array.
for (int i = 0; i < s_ArraySize; ++i)
{
if (i < list.Count)
{
origElement = i;
}
if (origElement == -1)
{
break;
}
var listValue = list[origElement];
if (i >= list.Count && !typeof(UnityEngine.Object).IsAssignableFrom(elementType) && !typeof(string).IsAssignableFrom(elementType))
{
// Do not copy by reference.
listValue = Activator.CreateInstance(list[origElement].GetType(), true);
}
newArray.SetValue(listValue, i);
}
if (type.IsArray)
{
list = (IList)newArray;
}
else
{
if (type.IsGenericType)
{
list = Activator.CreateInstance(typeof(List <>).MakeGenericType(elementType), true) as IList;
}
else
{
list = Activator.CreateInstance(type, true) as IList;
}
for (int i = 0; i < newArray.Length; ++i)
{
list.Add(newArray.GetValue(i));
}
}
// Mark the GUI as changed so the object will be serialized.
GUI.changed = true;
}
var size = EditorGUILayout.IntField("Size", list.Count);
if (size != list.Count)
{
if (!s_EditingArray)
{
s_EditingArray = true;
s_KeybordControl = GUIUtility.keyboardControl;
s_FocusHash = hash;
}
s_ArraySize = size;
}
hash = hashPrefix + Serialization.StringHash(type.FullName) + Serialization.StringHash(name);
for (int i = 0; i < list.Count; ++i)
{
GUILayout.BeginHorizontal();
if (list[i] == null && !typeof(UnityEngine.Object).IsAssignableFrom(elementType) && elementType != typeof(string))
{
list[i] = Activator.CreateInstance(elementType);
}
guiContent.text = "Element " + i;
list[i] = DrawObject(guiContent, elementType, parent, list[i], name, hash / (i + 2), valuePositionMap, serialization, fieldProperty, drawFields);
GUILayout.Space(6);
GUILayout.EndHorizontal();
}
EditorGUI.indentLevel--;
}
EditorGUILayout.EndVertical();
return(list);
}
