/// <summary>
/// Opens the default label window
/// </summary>
/// <param name="position">The position where the window is going to be drawn</param>
/// <param name="labels">Label array used to populate the list</param>
/// <param name="selectedLabels">Selected labels</param>
/// <param name="populateDefaultLabels">Should the default labels be included</param>
/// <param name="allowMultipleSelection">Should the system allow more than 1 label selected</param>
/// <param name="closeOnSelection">Should the window close on selection</param>
/// <param name="allowCustom">Allow custom labels</param>
/// <param name="maxCount">Max label count</param>
/// <param name="sortAlphabetically">Should the labels be sorted</param>
/// <param name="enableAutoCompletition">Should the window show auto completetion</param>
public void OpenLabelWindow(Rect position, string[] labels, string[] selectedLabels, bool populateDefaultLabels = true, bool allowMultipleSelection = true, bool closeOnSelection = false, bool allowCustom = true, int maxCount = 15, bool sortAlphabetically = true, bool enableAutoCompletition = true)
{
if (labels == null)
{
labels = new string[] { }
}
;
if (selectedLabels == null)
{
selectedLabels = new string[] { }
}
;
this.allowMultipleSelection = allowMultipleSelection;
this.allowCustom = allowCustom;
//Cache the data required
CacheData(labels, selectedLabels, populateDefaultLabels, closeOnSelection, maxCount, sortAlphabetically, enableAutoCompletition);
//Create a reference of the window
var popupListReference = Activator.CreateInstance(PopupList, new object[] { m_AssetLabels });
//Get the correct show method
var showMethod = typeof(PopupWindow).GetMethods(BindingFlags.Static | BindingFlags.NonPublic).Where(x =>
x.Name.Equals("Show") && x.GetParameters().Length == 4).Single();
//Invoke the method with the correct arguments
showMethod.Invoke(null, new object[] { position, popupListReference, null, 6 });
}
void CacheData(string[] labels, string[] selectedLabels, bool populateDefaultLabels, bool closeOnSelection, int maxCount, bool sortAlphabetically, bool enableAutoCompletition)
{
//Create instance to the delegate
Delegate action = Delegate.CreateDelegate(OnSelectCallback.FieldType, this, OnInternalSelectCallback);
//Create instance of data to send to the popup window
m_AssetLabels = Activator.CreateInstance(InputDataType);
//Assign all the respective values, including the delegate callback
CloseOnSelection.SetValue(m_AssetLabels, closeOnSelection);
AllowCustom.SetValue(m_AssetLabels, true);
OnSelectCallback.SetValue(m_AssetLabels, action);
MaxCount.SetValue(m_AssetLabels, maxCount);
SortAlphabetically.SetValue(m_AssetLabels, sortAlphabetically);
EnableAutoCompletion.SetValue(m_AssetLabels, enableAutoCompletition);
//Get all the labels available
if (populateDefaultLabels)
{
allLabels = (Dictionary <string, float>) typeof(AssetDatabase).InvokeMember("GetAllLabels", BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.InvokeMethod, null, null, null);
}
//Include any custom one sent on the array
foreach (var tag in labels)
{
if (string.IsNullOrEmpty(tag))
{
continue;
}
if (!allLabels.ContainsKey(tag))
{
allLabels.Add(tag, 0);
}
}
//Asing all the selected values
foreach (var pair in allLabels)
{
var element = NewOrMatchingElement.Invoke(m_AssetLabels, new object[] { pair.Key });
if ((float)(FilterScore.GetValue(element, null)) < pair.Value)
{
FilterScore.SetValue(element, pair.Value, null);
}
Selected.SetValue(element, selectedLabels.Any(label => string.Equals(label, pair.Key, StringComparison.OrdinalIgnoreCase)), null);
}
}
/// <summary>
/// Function called by Unity when an element is selected
/// </summary>
/// <param name="data">Element data</param>
void _OnInternalSelectCallback <T>(T data)
{
string selectedLabel = Text.GetValue(data, null).ToString();
if (!allowCustom && !allLabels.Keys.Any(x => x.ToLower().Equals(selectedLabel.ToLower())))
{
return;
}
if (!allowMultipleSelection)
{
foreach (var pair in allLabels)
{
if (pair.Key.ToLower().Equals(selectedLabel.ToLower()))
{
continue;
}
var element = NewOrMatchingElement.Invoke(m_AssetLabels, new object[] { pair.Key });
Selected.SetValue(element, false, null);
}
}
bool currentValue = (bool)(Selected.GetValue(data, null));
Selected.SetValue(data, !currentValue, null);
if (OnSelect != null)
{
OnSelect.Invoke(selectedLabel, !currentValue);
}
}
}
}
