/**
* Enables the drag and drop functionality for this {@code DynamicListView}.
* <p/>
* <b>NOTE: This method can only be called on devices running ICS (14) and above, otherwise an exception will be thrown.</b>
*
* @throws java.lang.UnsupportedOperationException if the device uses an older API than 14.
*/
//@SuppressLint("NewApi")
public void enableDragAndDrop()
{
if (Build.VERSION.SdkInt < BuildVersionCodes.IceCreamSandwich)
{
throw new Java.Lang.UnsupportedOperationException("Drag and drop is only supported API levels 14 and up!");
}
mDragAndDropHandler = new DragAndDropHandler(this);
}
/* <summary>
* The function is called when the component is instantiated
* </summary>
*/
private void Awake()
{
if ((singleton != null) && (singleton != this))
{
Destroy(this);
return;
}
singleton = this;
}
void Awake()
{
if (instance == null)
{
instance = this;
}
else if (instance != this)
{
Destroy(gameObject);
}
}
/**
* Disables the drag and drop functionality.
*/
public void disableDragAndDrop()
{
mDragAndDropHandler = null;
}
public virtual XMLSerializable InspectorGUIDragAndDropField(string FieldLabel, XMLSerializable CurrentValue, DragAndDropHandler HandlerFunction, int Index = -1)
{
XMLSerializable NewObject = CurrentValue;
EditorGUILayout.BeginHorizontal();
EditorGUILayout.PrefixLabel(FieldLabel);
GUILayout.Box(CurrentValue != null ? CurrentValue.EditorGetDisplayName() : "", GUILayout.ExpandWidth(true));
Rect DropBoxRect = GUILayoutUtility.GetLastRect();
if (DropBoxRect.Contains(Event.current.mousePosition))
{
EventType TypeOfEvent = Event.current.type;
if (TypeOfEvent == EventType.DragUpdated || TypeOfEvent == EventType.DragPerform)
{
DragAndDrop.visualMode = DragAndDropVisualMode.Copy;
if (TypeOfEvent == EventType.DragPerform)
{
DragAndDrop.AcceptDrag();
NewObject = HandlerFunction(DragAndDrop.paths[0], Index);
if (NewObject == null)
{
NewObject = CurrentValue;
}
}
Event.current.Use();
}
}
EditorGUILayout.EndHorizontal();
return(NewObject);
}
public virtual void InspectorGUIDictionaryDropAndObject <KeyType, ValueType>(string DictionaryName, string KeyPrefix, string ValuePrefix, ref Dictionary <KeyType, ValueType> CurrentDictionary, DragAndDropHandler DropHandler, GetEditorWrapper WrapperForValue, bool bReadOnly = false, bool bStartOpen = false)
where KeyType : XMLSerializable, new()
where ValueType : XMLSerializable, new()
{
if (!InspectorArrayExpanded.ContainsKey(DictionaryName))
{
InspectorArrayExpanded.Add(DictionaryName, bStartOpen);
}
bool bDictionaryExpanded = InspectorArrayExpanded[DictionaryName];
bDictionaryExpanded = EditorGUILayout.Foldout(bDictionaryExpanded, DictionaryName);
InspectorArrayExpanded[DictionaryName] = bDictionaryExpanded;
if (bDictionaryExpanded)
{
EditorGUI.indentLevel += 1;
int NewDictionaryCount = CurrentDictionary.Keys.Count;
int OldDictionaryCount = NewDictionaryCount;
bool bCountActuallyChanged = false;
if (bReadOnly)
{
EditorGUILayout.LabelField("Count", CurrentDictionary.Keys.Count.ToString());
}
else
{
bCountActuallyChanged = InspectorGUIIntWaitForEnter(DictionaryName + "Count", "Count", OldDictionaryCount, out NewDictionaryCount);
}
if (bCountActuallyChanged && NewDictionaryCount != CurrentDictionary.Keys.Count)
{
bInspectorHasChangedProperty = true;
if (NewDictionaryCount > CurrentDictionary.Keys.Count)
{
for (int CurrentElement = CurrentDictionary.Keys.Count; CurrentElement < NewDictionaryCount; ++CurrentElement)
{
CurrentDictionary.Add(new KeyType(), new ValueType());
}
}
else
{
int CurrentIndex = 0;
foreach (KeyValuePair <KeyType, ValueType> CurrentElement in CurrentDictionary)
{
if (CurrentIndex >= NewDictionaryCount)
{
CurrentDictionary.Remove(CurrentElement.Key);
}
++CurrentIndex;
}
}
}
int SmallestSize = OldDictionaryCount > NewDictionaryCount ? NewDictionaryCount : OldDictionaryCount;
for (int CurrentIndex = 0; CurrentIndex < SmallestSize; ++CurrentIndex)
{
int CurrentDictionaryIndex = 0;
foreach (KeyValuePair <KeyType, ValueType> CurrentElement in CurrentDictionary)
{
if (CurrentIndex == CurrentDictionaryIndex)
{
EditorGUILayout.BeginVertical("box");
KeyType NewKey = (KeyType)InspectorGUIDragAndDropField(KeyPrefix + " " + CurrentIndex, CurrentElement.Key, DropHandler, CurrentIndex);
ValueType NewValue = CurrentElement.Value;
if (NewKey != CurrentElement.Key)
{
CurrentDictionary.Remove(CurrentElement.Key);
CurrentDictionary.Add(NewKey, NewValue);
}
InspectableObject ValueInspector = WrapperForValue(NewValue, CurrentIndex);
if (ValueInspector != null)
{
bInspectorHasChangedProperty = ValueInspector.InnerInspectorGUI() || bInspectorHasChangedProperty;
}
EditorGUILayout.EndVertical();
break;
}
++CurrentDictionaryIndex;
}
}
EditorGUI.indentLevel -= 1;
}
}
