public override void OnGUI(Rect position, SerializedProperty property, GUIContent label)
{
EditorGUI.BeginProperty(position, label, property);
EnumUtils.EnumDisplayInfo enumInfo;
if (property.propertyType != SerializedPropertyType.Integer)
{
EditorGUI.LabelField(position, label.text, "Use FlagFromEnum with integer.");
}
else if (!TryGetEnumInfo(out enumInfo))
{
EditorGUI.LabelField(position, label.text, "Set FlagFromEnum argument with enum type.");
}
else
{
position = EditorGUI.PrefixLabel(position, new GUIContent(property.displayName));
// get display mask value
s_displayedMask.Clear();
var enumDisplayLength = enumInfo.displayedMaskLength;
var realMask = (ulong)property.longValue;
var firstSelected = string.Empty;
for (int i = 0; i < enumDisplayLength; ++i)
{
if (EnumUtils.GetFlag(realMask, enumInfo.displayedMaskValues[i]))
{
s_displayedMask.Add(true);
if (string.IsNullOrEmpty(firstSelected))
{
firstSelected = enumInfo.displayedMaskNames[i];
}
}
else
{
s_displayedMask.Add(false);
}
}
var flagsCount = 0;
for (var i = 0; i < EnumUtils.ULONG_MASK_FIELD_LENGTH; ++i)
{
if (EnumUtils.GetFlag(realMask, i))
{
++flagsCount;
}
}
if (EditorGUI.showMixedValue)
{
s_tempContent.text = " - ";
}
else if (flagsCount == 0)
{
s_tempContent.text = "None";
}
else if (flagsCount == 1)
{
s_tempContent.text = firstSelected;
}
else if (flagsCount < enumDisplayLength)
{
s_tempContent.text = "Mixed...";
}
else
{
s_tempContent.text = "All";
}
var controlPos = position;
controlPos.height = EditorGUIUtility.singleLineHeight;
var id = GUIUtility.GetControlID(FocusType.Passive, controlPos);
switch (Event.current.GetTypeForControl(id))
{
case EventType.MouseDown:
if (controlPos.Contains(Event.current.mousePosition))
{
GUIUtility.hotControl = id;
GUIUtility.keyboardControl = id;
Event.current.Use();
}
break;
case EventType.MouseUp:
if (GUIUtility.hotControl == id)
{
GUIUtility.hotControl = 0;
GUIUtility.keyboardControl = 0;
Event.current.Use();
m_foldoutOpen = !m_foldoutOpen;
}
break;
case EventType.Repaint:
s_popup.Draw(position, s_tempContent, id, false);
break;
}
if (m_foldoutOpen)
{
position.y += EditorGUIUtility.singleLineHeight;
var halfWidth = position.width * 0.5f;
if (GUI.Button(new Rect(position.x, position.y, halfWidth - 1, EditorGUIUtility.singleLineHeight), "All"))
{
realMask = ~0ul;
//m_foldoutOpen = false;
}
//Draw the None button
if (GUI.Button(new Rect(position.x + halfWidth + 1, position.y, halfWidth - 1, EditorGUIUtility.singleLineHeight), "None"))
{
realMask = 0ul;
//m_foldoutOpen = false;
}
for (int i = 0; i < enumDisplayLength; ++i)
{
position.y += EditorGUIUtility.singleLineHeight;
var toggled = EditorGUI.ToggleLeft(new Rect(position.x, position.y, position.width, EditorGUIUtility.singleLineHeight), enumInfo.displayedMaskNames[i], s_displayedMask[i]);
if (s_displayedMask[i] != toggled)
{
s_displayedMask[i] = toggled;
EnumUtils.SetFlag(ref realMask, enumInfo.displayedMaskValues[i], toggled);
//m_foldoutOpen = false;
}
}
property.longValue = (long)realMask;
}
}
property.serializedObject.ApplyModifiedProperties();
EditorGUI.EndProperty();
}
