public static void GetOptionsAndNameAssets <T>(
this ICustomOptionNamesProvider <T> provider,
ref string[] optionNames, ref T[] nameAssets, string[] defaultOptions
) where T : ScriptableObject, IFlagNames
{
if (optionNames != null)
{
return;
}
var guids = AssetDatabase.FindAssets($"t:{typeof(T).Name}");
nameAssets = guids
.Select(AssetDatabase.GUIDToAssetPath)
.Select(AssetDatabase.LoadAssetAtPath <T>)
.Where(c => c != null)
.ToArray();
optionNames = nameAssets.FirstOrDefault()?.FlagNames.ToArray() ?? defaultOptions;
for (var i = 0; i < optionNames.Length; ++i)
{
optionNames[i] = string.IsNullOrEmpty(optionNames[i]) ? defaultOptions[i] : optionNames[i];
}
}
public static void DoCustomNamesPopup <T>(
Rect position, SerializedProperty property, GUIContent label, ICustomOptionNamesProvider <T> optionsProvider
) where T : ScriptableObject
{
if (optionsProvider.NameAssets?.Count == 0)
{
position.xMax -= Styles.CreateAssetButtonWidth + EditorGUIUtility.standardVerticalSpacing;
}
else if (optionsProvider.NameAssets?.Count > 1)
{
position.xMax -= EditorGUIUtility.singleLineHeight + EditorGUIUtility.standardVerticalSpacing;
}
EditorGUI.BeginProperty(position, label, property);
var controlPosition = EditorGUI.PrefixLabel(position, label);
var indent = EditorGUI.indentLevel;
EditorGUI.indentLevel = 0;
var showMixed = EditorGUI.showMixedValue;
var value = 0;
var everything = 0;
for (int i = 0, count = property.arraySize; i < count; ++i)
{
var sp = property.GetArrayElementAtIndex(i);
EditorGUI.showMixedValue |= sp.hasMultipleDifferentValues;
value |= sp.boolValue ? 1 << i : 0;
everything |= 1 << i;
}
// in case size is smaller than 32
if (value == everything)
{
value = ~0;
}
EditorGUI.BeginChangeCheck();
value = EditorGUI.MaskField(controlPosition, GUIContent.none, value, optionsProvider.GetOptions());
if (EditorGUI.EndChangeCheck())
{
for (int i = 0, count = property.arraySize; i < count; ++i)
{
property.GetArrayElementAtIndex(i).boolValue = (value & (1 << i)) != 0;
}
}
EditorGUI.showMixedValue = showMixed;
EditorGUI.indentLevel = indent;
EditorGUI.EndProperty();
if (optionsProvider.NameAssets?.Count == 0)
{
position.width = Styles.CreateAssetButtonWidth;
position.x = controlPosition.xMax + EditorGUIUtility.standardVerticalSpacing;
Styles.CreateAssetLabel.tooltip =
string.Format(Styles.CreateAssetButtonTooltip, ObjectNames.NicifyVariableName(typeof(T).Name));
if (GUI.Button(position, Styles.CreateAssetLabel, EditorStyles.miniButton))
{
var assetPath =
AssetDatabase.GenerateUniqueAssetPath($"Assets/{typeof(T).Name}.asset");
AssetDatabase.CreateAsset(ScriptableObject.CreateInstance <T>(), assetPath);
Selection.activeObject = AssetDatabase.LoadAssetAtPath <T>(assetPath);
optionsProvider.Update();
}
}
else if (optionsProvider.NameAssets.Count > 1)
{
var id = GUIUtility.GetControlID(FocusType.Passive);
if (Event.current.type == EventType.Repaint)
{
position.width = EditorGUIUtility.singleLineHeight;
position.x = controlPosition.xMax + EditorGUIUtility.standardVerticalSpacing;
Styles.MultipleAssetsWarning.tooltip = string.Format(
Styles.MultipleAssetsTooltip,
ObjectNames.NicifyVariableName(typeof(T).Name),
optionsProvider.NameAssets.FirstOrDefault(n => n != null)?.name
);
GUIStyle.none.Draw(position, Styles.MultipleAssetsWarning, id);
}
}
}
