126 lines
4.3 KiB
C#
126 lines
4.3 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using UnityEngine;
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using UnityEngine.Events;
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using UnityEngine.Timeline;
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namespace UnityEditor.Timeline.Signals
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{
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interface ISignalAssetProvider
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{
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SignalAsset signalAsset { get; set; }
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IEnumerable<SignalAsset> AvailableSignalAssets();
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void CreateNewSignalAsset(string path);
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}
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static class SignalUtility
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{
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const string k_SignalExtension = "signal";
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public static void DrawSignalNames(ISignalAssetProvider assetProvider, Rect position, GUIContent label, bool multipleValues)
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{
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var assets = assetProvider.AvailableSignalAssets().ToList();
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var index = assets.IndexOf(assetProvider.signalAsset);
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var availableNames = new List<string>();
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using (new GUIMixedValueScope(multipleValues))
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{
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availableNames.Add(Styles.EmptySignalList.text);
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availableNames.AddRange(assets.Select(x => x.name));
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availableNames.Add(Styles.CreateNewSignal.text);
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var curValue = index + 1;
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var selected = EditorGUI.Popup(position, label, curValue, availableNames.ToArray());
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if (selected != curValue)
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{
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var noneEntryIdx = 0;
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if (selected == noneEntryIdx) // None
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assetProvider.signalAsset = null;
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else if (selected == availableNames.Count - 1) // "Create New Asset"
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{
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var path = GetNewSignalPath();
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if (!string.IsNullOrEmpty(path))
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assetProvider.CreateNewSignalAsset(path);
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GUIUtility.ExitGUI();
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}
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else
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assetProvider.signalAsset = assets[selected - 1];
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}
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}
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}
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public static string GetNewSignalPath()
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{
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return EditorUtility.SaveFilePanelInProject(
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Styles.NewSignalWindowTitle.text,
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Styles.NewSignalDefaultName.text,
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k_SignalExtension,
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Styles.NewSignalWindowMessage.text);
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}
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public static bool IsSignalAssetHandled(this SignalReceiver receiver, SignalAsset asset)
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{
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return receiver != null && asset != null && receiver.GetRegisteredSignals().Contains(asset);
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}
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public static void AddNewReaction(this SignalReceiver receiver, SignalAsset signalAsset)
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{
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if (signalAsset != null && receiver != null)
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{
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Undo.RecordObject(receiver, Styles.UndoAddReaction);
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var newEvent = new UnityEvent();
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newEvent.AddPersistentListener();
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var evtIndex = newEvent.GetPersistentEventCount() - 1;
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newEvent.RegisterVoidPersistentListenerWithoutValidation(evtIndex, receiver.gameObject, string.Empty);
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receiver.AddReaction(signalAsset, newEvent);
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PrefabUtility.RecordPrefabInstancePropertyModifications(receiver);
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}
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}
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public static void DrawCenteredMessage(string message)
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{
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using (new GUILayout.HorizontalScope())
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{
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GUILayout.FlexibleSpace();
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GUILayout.Label(message);
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GUILayout.FlexibleSpace();
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}
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}
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public static bool DrawCenteredButton(GUIContent buttonLabel)
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{
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bool buttonClicked;
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using (new GUILayout.HorizontalScope())
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{
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GUILayout.FlexibleSpace();
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buttonClicked = GUILayout.Button(buttonLabel);
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GUILayout.FlexibleSpace();
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}
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return buttonClicked;
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}
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}
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static class SignalReceiverUtility
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{
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const int k_DefaultTreeviewHeaderHeight = 20;
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public static int headerHeight
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{
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get { return k_DefaultTreeviewHeaderHeight; }
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}
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public static SerializedProperty FindSignalsProperty(SerializedObject obj)
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{
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return obj.FindProperty("m_Events.m_Signals");
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}
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public static SerializedProperty FindEventsProperty(SerializedObject obj)
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{
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return obj.FindProperty("m_Events.m_Events");
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}
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}
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}
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