public static bool GetDrawFunction(MemberReference member, ShowInInspectorAttribute attribute, out DrawFunction drawFunction)
{
if (InternalPropertyDrawer.GetDrawFunction(member.InnerType, member, attribute, out drawFunction))
{
return(true);
}
drawFunction = null;
return(false);
}
public static DrawFunction GenerateFloat(MemberReference member, ShowInInspectorAttribute attribute)
{
if (member.HasValue && member.MemberInfo.HasCustomAttribute <ShowAsFloatSliderAttribute>())
{
var sliderAttribute = member.MemberInfo.GetCustomAttribute <ShowAsFloatSliderAttribute>();
return((label, value, parameters) => EditorGUILayout.Slider(label, (float)value, sliderAttribute.Min, sliderAttribute.Max, parameters));
}
else
{
return(InternalPropertyDrawer.CreateDrawFunction <float>(EditorGUILayout.FloatField));
}
}
public static DrawFunction CreateDrawFunction <T>(Func <T, T> drawFunction)
{
return((label, value, parameters) =>
{
var labelWidth = GUILayout.Width(InternalPropertyDrawer.CalculateLabelWidth());
EditorGUILayout.BeginHorizontal();
EditorGUILayout.LabelField(label, labelWidth);
var newValue = drawFunction((T)value);
EditorGUILayout.EndHorizontal();
return newValue;
});
}
public static DrawFunction GenerateInt(MemberReference member, ShowInInspectorAttribute attribute)
{
if (member.HasValue && member.MemberInfo.HasCustomAttribute <ShowAsIntSliderAttribute>())
{
var sliderAttribute = member.MemberInfo.GetCustomAttribute <ShowAsIntSliderAttribute>();
return((label, value, parameters) => EditorGUILayout.IntSlider(label, (int)value, sliderAttribute.Min, sliderAttribute.Max, parameters));
}
else if (member.HasValue && Attribute.IsDefined(member.MemberInfo, typeof(ShowAsLayerAttribute)))
{
return(InternalPropertyDrawer.CreateDrawFunction <int>(EditorGUILayout.LayerField));
}
else
{
return(InternalPropertyDrawer.CreateDrawFunction <int>(EditorGUILayout.IntField));
}
}
public static bool GetDrawFunction(Type type, MemberReference memberReference, ShowInInspectorAttribute attribute, out DrawFunction drawFunction)
{
if (_drawFunctions.TryGetValue(type, out drawFunction))
{
return(true);
}
DrawFunctionGenerator generator;
if (_drawFunctionGenerators.TryGetValue(type, out generator))
{
drawFunction = generator(memberReference, attribute);
return(true);
}
if (type.IsEnum)
{
drawFunction = (n, v, o) => EditorGUILayout.EnumPopup(n, (Enum)v, o);
return(true);
}
else if (typeof(UnityObject).IsAssignableFrom(type))
{
drawFunction = (n, v, o) => EditorGUILayout.ObjectField(n, (UnityObject)v, type, true, o);
return(true);
}
else if (type.IsArray)
{
Type elementType = type.GetElementType();
DrawFunction elementDrawFunction;
if (InternalPropertyDrawer.GetDrawFunction(elementType, out elementDrawFunction))
{
drawFunction = (label, value, parameters) =>
{
const int IndentationAmount = 20;
Array array = (Array)value;
// draw the name of the array
EditorGUILayout.LabelField(label, EditorStyles.boldLabel);
// draw the length (and '+' & '-' buttons)
EditorGUILayout.BeginHorizontal();
GUILayout.Space(IndentationAmount);
int newLength = EditorGUILayout.IntField("Length", array.Length);
if (GUILayout.Button("+", GUILayout.Width(24)))
{
newLength++;
}
else if (GUILayout.Button("-", GUILayout.Width(24)))
{
newLength = FlaiMath.Max(0, newLength - 1);
}
EditorGUILayout.EndHorizontal();
// if the size has been changed, then update it
if (newLength != array.Length && newLength > 0)
{
Array newArray = (Array)Activator.CreateInstance(array.GetType(), newLength);
if (array.Length > 0)
{
for (int i = 0; i < newArray.Length; i++)
{
var elementValue = (i >= array.Length) ? array.GetValue(array.Length - 1) : array.GetValue(i);
newArray.SetValue(elementValue, i);
}
}
array = newArray;
}
// draw all the elements
for (int i = 0; i < array.Length; i++)
{
EditorGUILayout.BeginHorizontal();
GUILayout.Space(IndentationAmount);
array.SetValue(elementDrawFunction("Element " + i, array.GetValue(i), null), i);
EditorGUILayout.EndHorizontal();
}
return(array);
};
return(true);
}
}
return(false);
}
public static bool GetDrawFunction <T>(out DrawFunction drawFunction)
{
return(InternalPropertyDrawer.GetDrawFunction(typeof(T), out drawFunction));
}
