public static ReorderableList SetElementHeight(this ReorderableList _list,
ReorderableList.ElementHeightCallbackDelegate _getHeight)
{
_list.elementHeightCallback = _getHeight;
return(_list);
}
private void InitList(ReorderableList.ElementCallbackDelegate drawCallback, ReorderableList.ElementHeightCallbackDelegate heightCallback)
{
List = new ReorderableList(_property.serializedObject, _property);
List.drawHeaderCallback += rect => _property.isExpanded = EditorGUI.ToggleLeft(rect, _property.displayName, _property.isExpanded, EditorStyles.boldLabel);
List.onCanRemoveCallback += (list) => { return(List.count > 0); };
List.drawElementCallback += drawCallback;
List.elementHeightCallback += heightCallback;
}
/// <summary>
/// Create a <c>UnityEditorInternal.ReorderableList</c> with common settings.
/// </summary>
///
/// <remarks>
/// I.e., the property label as the header, click to fold or expand the list, basic add and remove buttons.
/// </remarks>
///
/// <returns>The reorderable list.</returns>
/// <param name="property">Property.</param>
/// <param name="drawElementCallback">Draw element callback.</param>
/// <param name="elementHeightCallback">Element height callback.</param>
/*
* The reference of reorderable list:
* http://va.lent.in/unity-make-your-lists-functional-with-reorderablelist/
*
* Set draggable again since it becomes false if the property is not editable.
*/
public static ReorderableList Create(
SerializedProperty property,
ReorderableList.ElementCallbackDelegate drawElementCallback = null,
ReorderableList.ElementHeightCallbackDelegate elementHeightCallback = null
)
{
if (null == property)
{
throw new ArgumentNullException("property");
}
var _result = new ReorderableList(property.serializedObject, property, true, true, true, true);
_result.draggable = true;
_result.drawElementCallback = drawElementCallback;
_result.elementHeightCallback = elementHeightCallback;
Wrap(_result);
return(_result);
}
public static CachedReorderableList GetListDrawer(SerializedProperty property, ReorderableList.HeaderCallbackDelegate drawHeaderCallback, ReorderableList.ElementHeightCallbackDelegate getElementHeightCallback, ReorderableList.ElementCallbackDelegate drawElementCallback,
ReorderableList.FooterCallbackDelegate drawFooterCallback = null,
ReorderableList.AddCallbackDelegate onAddCallback = null, ReorderableList.RemoveCallbackDelegate onRemoveCallback = null, ReorderableList.SelectCallbackDelegate onSelectCallback = null,
ReorderableList.ChangedCallbackDelegate onChangedCallback = null, ReorderableList.ReorderCallbackDelegate onReorderCallback = null, ReorderableList.CanRemoveCallbackDelegate onCanRemoveCallback = null,
ReorderableList.AddDropdownCallbackDelegate onAddDropdownCallback = null)
{
if (property == null)
{
throw new System.ArgumentNullException("property");
}
if (!property.isArray)
{
throw new System.ArgumentException("SerializedProperty must be a property for an Array or List", "property");
}
int hash = GetPropertyHash(property);
CachedReorderableList lst;
if (_lstCache.TryGetValue(hash, out lst))
{
lst.ReInit(property.serializedObject, property);
}
else
{
lst = new CachedReorderableList(property.serializedObject, property);
_lstCache[hash] = lst;
}
lst.drawHeaderCallback = drawHeaderCallback;
lst.elementHeightCallback = getElementHeightCallback;
lst.drawElementCallback = drawElementCallback;
lst.drawFooterCallback = drawFooterCallback;
lst.onAddCallback = onAddCallback;
lst.onRemoveCallback = onRemoveCallback;
lst.onSelectCallback = onSelectCallback;
lst.onChangedCallback = onChangedCallback;
lst.onReorderCallback = onReorderCallback;
lst.onCanRemoveCallback = onCanRemoveCallback;
lst.onAddDropdownCallback = onAddDropdownCallback;
return(lst);
}
public ListControl MakeCustomHeight(ReorderableList.ElementHeightCallbackDelegate callback)
{
_getElementHeight = callback;
return(this);
}
public ReorderableListProperty(SerializedProperty prop, bool indentElems = false, ReorderableList.ElementCallbackDelegate drawCallback = null, ReorderableList.ElementHeightCallbackDelegate heightCallback = null)
{
_property = prop;
indentElements = indentElems;
if (drawCallback == null)
{
drawCallback = DrawElement;
}
if (heightCallback == null)
{
heightCallback = (idx) => { return(Mathf.Max(EditorGUIUtility.singleLineHeight, EditorGUI.GetPropertyHeight(_property.GetArrayElementAtIndex(idx), GUIContent.none, true)) + 4.0f); };
}
InitList(drawCallback, heightCallback);
}