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using UnityEngine;
using UnityEditor;
using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
namespace AdvancedInspector
{
public class EnumEditor : FieldEditor
{
public override bool EditDerived
{
get { return true; }
}
public override bool Expandable
{
get { return false; }
}
public override Type[] EditedTypes
{
get { return new Type[] { typeof(Enum) }; }
}
public override void Draw(InspectorField field, GUIStyle style)
{
EnumAttribute display = field.GetAttribute<EnumAttribute>();
EditorGUI.showMixedValue = field.Mixed;
EditorGUI.BeginChangeCheck();
object result = null;
long value = Convert.ToInt64(GetValue(field));
if (display == null || !display.Masked)
{
if (display == null || display.Display == EnumDisplay.DropDown)
result = DrawDropDown(field.Type, value, style, false);
else if (display.Display == EnumDisplay.Button)
result = DrawEnum(field.Type, value, display.MaxItemsPerRow, style == null ? EditorStyles.toolbarButton : style);
else if (display.Display == EnumDisplay.Checkbox)
result = DrawEnum(field.Type, value, display.MaxItemsPerRow, style == null ? EditorStyles.toggle : style);
}
else
{
if (display == null || display.Display == EnumDisplay.DropDown)
result = DrawDropDown(field.Type, value, style, true);
else if (display.Display == EnumDisplay.Button)
result = DrawMasked(field.Type, value, display.MaxItemsPerRow, style == null ? EditorStyles.toolbarButton : style);
else if (display.Display == EnumDisplay.Checkbox)
result = DrawMasked(field.Type, value, display.MaxItemsPerRow, style == null ? EditorStyles.toggle : style);
}
if (EditorGUI.EndChangeCheck())
field.SetValue(result);
}
private int SelectedIndex(Array values, long value)
{
for (int i = 0; i < values.Length; i++)
if (Convert.ToInt64(values.GetValue(i)) == value)
return i;
return 0;
}
private string[] GetNames(Type type)
{
Array values = Enum.GetValues(type);
List<string> names = Enum.GetNames(type).ToList();
for (int i = 0; i < names.Count; i++)
{
DescriptorAttribute descriptor = ((Enum)values.GetValue(i)).GetAttribute<DescriptorAttribute>();
if (descriptor != null && !string.IsNullOrEmpty(descriptor.Name))
names[i] = descriptor.Name;
else
names[i] = ObjectNames.NicifyVariableName(names[i]);
}
return names.ToArray();
}
private object DrawDropDown(Type type, long value, GUIStyle style, bool masked)
{
string[] names = GetNames(type);
Array values = Enum.GetValues(type);
if (masked)
{
if (style == null)
value = EditorGUILayout.MaskField(Convert.ToInt32(value), names);
else
value = EditorGUILayout.MaskField(Convert.ToInt32(value), names, style);
return Enum.ToObject(type, value);
}
else
{
int selected = SelectedIndex(values, value);
if (style == null)
selected = EditorGUILayout.Popup(selected, names);
else
selected = EditorGUILayout.Popup(selected, names, style);
return Enum.ToObject(type, values.GetValue(selected));
}
}
private object DrawEnum(Type type, long value, int max, GUIStyle style)
{
if (max < 1)
max = 6;
string[] names = GetNames(type);
Array values = Enum.GetValues(type);
int rows = Mathf.CeilToInt((float)names.Length / (float)max);
int count = (names.Length / rows);
if (count * rows < names.Length)
count++;
int selected = SelectedIndex(values, value);
GUILayout.BeginVertical();
for (int i = 0; i < rows; i++)
{
GUILayout.BeginHorizontal();
for (int j = count * i; j < count * (i + 1); j++)
{
if (j >= names.Length)
break;
if (selected == j)
GUILayout.Toggle(true, names[j], style);
else if (GUILayout.Toggle(false, names[j], style))
selected = j;
}
GUILayout.EndHorizontal();
}
GUILayout.EndVertical();
return Enum.ToObject(type, values.GetValue(selected));
}
private object DrawMasked(Type type, long value, int max, GUIStyle style)
{
if (max < 1)
max = 6;
Array values = Enum.GetValues(type);
string[] names = GetNames(type);
int rows = Mathf.CeilToInt((float)names.Length / (float)max);
int count = (names.Length / rows);
if (count * rows < names.Length)
count++;
int result = 0;
GUILayout.BeginVertical();
for (int i = 0; i < rows; i++)
{
GUILayout.BeginHorizontal();
for (int j = count * i; j < count * (i + 1); j++)
{
if (j >= names.Length)
break;
int v = (int)values.GetValue(j);
if (GUILayout.Toggle(((int)value & v) == v, names[j], style))
result |= v;
}
GUILayout.EndHorizontal();
}
GUILayout.EndVertical();
return Enum.ToObject(type, result);
}
}
}
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