/// <summary>
/// Returns true if any changes were made to the list.
/// </summary>
public static bool ShowList <T>(IList <T> list,
ShowItem <T> showItemDelegate,
float viewWidth,
ShowListOptions options = ShowListOptions.Reorderable | ShowListOptions.Resizeable | ShowListOptions.Resizeable | ShowListOptions.ShowListSize,
int minListSize = 0, int maxListSize = int.MaxValue) where T : new()
{
// To avoid clipping by vertical scrollbar
viewWidth -= 20f;
int indexToDelete = -1;
int indexToMoveUp = -1;
int indexToMoveDown = -1;
int listCount = list.Count;
var oddStyle = new GUIStyle();
oddStyle.normal.background = blackQuarterAlphaTexture2D;
EditorGUI.indentLevel++;
var listStyle = new GUIStyle();
listStyle.margin = new RectOffset(0, 0, 10, 0);
listStyle.imagePosition = ImagePosition.ImageLeft;
EditorGUILayout.BeginVertical(listStyle);
if ((options & ShowListOptions.ShowListSize) == ShowListOptions.ShowListSize)
{
EditorGUILayout.LabelField(new GUIContent("Size: " + listCount), EditorUtils.boldLabelStyle);
EditorGUILayout.Separator();
}
GUI.changed = false;
for (int i = 0; i < listCount; ++i)
{
var item = list[i];
//------------
// Show Item
//------------
if (i % 2 == 0)
{
EditorGUILayout.BeginHorizontal();
}
else
{
EditorGUILayout.BeginHorizontal(oddStyle);
}
EditorGUILayout.BeginVertical(GUILayout.Width(viewWidth * 0.94f));
var visible = showItemDelegate(item, i);
EditorGUILayout.EndVertical();
//-----------------------
// List Manipulation
EditorGUILayout.BeginVertical(GUILayout.Width(viewWidth * 0.05f));
if (visible)
{
if ((options & ShowListOptions.Resizeable) == ShowListOptions.Resizeable)
{
GUI.enabled = (listCount > minListSize);
if (GUILayout.Button("X", "toolbarbutton", GUILayout.ExpandWidth(false)))
{
indexToDelete = i;
}
}
if ((options & ShowListOptions.Reorderable) == ShowListOptions.Reorderable)
{
GUI.enabled = (i < listCount - 1);
if (GUILayout.Button("\u25BC", EditorStyles.toolbarButton, GUILayout.Width(18)))
{
indexToMoveDown = i;
}
GUI.enabled = i > 0;
if (GUILayout.Button("\u25B2", EditorStyles.toolbarButton, GUILayout.Width(18)))
{
indexToMoveUp = i;
}
}
}
GUI.enabled = true;
EditorGUILayout.EndVertical();
// End List Manipulation
//-----------------------
EditorGUILayout.EndHorizontal();
}
bool itemsChanged = false;
if (listCount < maxListSize && (options & ShowListOptions.Resizeable) == ShowListOptions.Resizeable)
{
if (GUILayout.Button("Add", EditorStyles.toolbarButton, GUILayout.Width(50)))
{
var newItem = default(T);
if (newItem == null)
{
newItem = new T();
}
list.Add(newItem);
itemsChanged = true;
}
}
EditorGUILayout.EndVertical();
EditorGUI.indentLevel--;
if (indexToDelete >= 0 && listCount > minListSize)
{
list.RemoveAt(indexToDelete);
itemsChanged = true;
}
if (indexToMoveUp >= 0)
{
Swap(list, indexToMoveUp, indexToMoveUp - 1);
itemsChanged = true;
}
if (indexToMoveDown >= 0)
{
Swap(list, indexToMoveDown, indexToMoveDown + 1);
itemsChanged = true;
}
return(itemsChanged || GUI.changed);
} // ShowList<T>()
/// <summary>
/// Recommend calling SerializedObject.Update() before.
/// Returns true if any changes were made to the list. Automatically handles registering Undo, and saving changes to Serialized object.
/// Recommend calling SerializedObject.ApplyModifiedProperties() afterwards.
///
/// Alternative: Use the ReorderableList class in UnityEditorInternal namespace. See this excellent post: http://va.lent.in/unity-make-your-lists-functional-with-reorderablelist/
/// </summary>
public static bool ShowList <T>(SerializedProperty list, ShowItemSerialized showItemDelegate,
float viewWidth,
ShowListOptions options = ShowListOptions.Reorderable | ShowListOptions.Resizeable | ShowListOptions.Resizeable | ShowListOptions.ShowListSize,
int minListSize = 0, int maxListSize = int.MaxValue)
{
//if (list.isArray) {
// throw new ArgumentException( "SaveSystem: ShowList() SerializedProperty must be a List." );
//}
// To avoid clipping by vertical scrollbar
viewWidth -= 20f;
int indexToDelete = -1;
int indexToMoveUp = -1;
int indexToMoveDown = -1;
int listCount = list.arraySize;
var oddStyle = new GUIStyle();
oddStyle.normal.background = blackQuarterAlphaTexture2D;
EditorGUI.indentLevel++;
var listStyle = new GUIStyle();
listStyle.margin = new RectOffset(0, 0, 10, 0);
listStyle.imagePosition = ImagePosition.ImageLeft;
EditorGUILayout.BeginVertical(listStyle);
if ((options & ShowListOptions.ShowListSize) == ShowListOptions.ShowListSize)
{
EditorGUILayout.LabelField(new GUIContent("Size: " + listCount), EditorUtils.boldLabelStyle);
EditorGUILayout.Separator();
}
GUI.changed = false;
for (int i = 0; i < listCount; ++i)
{
var item = list.GetArrayElementAtIndex(i);
//------------
// Show Item
//------------
if (i % 2 == 0)
{
EditorGUILayout.BeginHorizontal();
}
else
{
EditorGUILayout.BeginHorizontal(oddStyle);
}
EditorGUILayout.BeginVertical(GUILayout.Width(viewWidth * 0.94f));
var visible = showItemDelegate(item, i);
EditorGUILayout.EndVertical();
//-----------------------
// List Manipulation
EditorGUILayout.BeginVertical(GUILayout.Width(viewWidth * 0.05f));
if (visible)
{
if ((options & ShowListOptions.Resizeable) == ShowListOptions.Resizeable)
{
GUI.enabled = (listCount > minListSize);
if (GUILayout.Button("X", "toolbarbutton", GUILayout.ExpandWidth(false)))
{
indexToDelete = i;
}
}
if ((options & ShowListOptions.Reorderable) == ShowListOptions.Reorderable)
{
GUI.enabled = (i < listCount - 1);
if (GUILayout.Button("\u25BC", EditorStyles.toolbarButton, GUILayout.Width(18)))
{
indexToMoveDown = i;
}
GUI.enabled = i > 0;
if (GUILayout.Button("\u25B2", EditorStyles.toolbarButton, GUILayout.Width(18)))
{
indexToMoveUp = i;
}
}
}
GUI.enabled = true;
EditorGUILayout.EndVertical();
// End List Manipulation
//-----------------------
EditorGUILayout.EndHorizontal();
}
if (listCount < maxListSize && (options & ShowListOptions.Resizeable) == ShowListOptions.Resizeable)
{
if (GUILayout.Button("Add", EditorStyles.toolbarButton, GUILayout.Width(50)))
{
list.InsertArrayElementAtIndex(listCount);
}
}
EditorGUILayout.EndVertical();
EditorGUI.indentLevel--;
if (indexToDelete >= 0 && listCount > minListSize)
{
list.DeleteArrayElementAtIndex(indexToDelete);
}
if (indexToMoveUp >= 0)
{
list.MoveArrayElement(indexToMoveUp, indexToMoveUp - 1);
}
if (indexToMoveDown >= 0)
{
list.MoveArrayElement(indexToMoveDown, indexToMoveDown + 1);
}
return(GUI.changed);
}
