123 lines
4.7 KiB
C#
123 lines
4.7 KiB
C#
using System;
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using UnityEngine;
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using UnityEngine.EventSystems;
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namespace UnityEditor.EventSystems
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{
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[CustomEditor(typeof(EventTrigger), true)]
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public class EventTriggerEditor : Editor
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{
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SerializedProperty m_DelegatesProperty;
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GUIContent m_IconToolbarMinus;
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GUIContent m_EventIDName;
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GUIContent[] m_EventTypes;
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GUIContent m_AddButonContent;
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protected virtual void OnEnable()
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{
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m_DelegatesProperty = serializedObject.FindProperty("m_Delegates");
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m_AddButonContent = EditorGUIUtility.TrTextContent("Add New Event Type");
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m_EventIDName = new GUIContent("");
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// Have to create a copy since otherwise the tooltip will be overwritten.
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m_IconToolbarMinus = new GUIContent(EditorGUIUtility.IconContent("Toolbar Minus"));
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m_IconToolbarMinus.tooltip = "Remove all events in this list.";
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string[] eventNames = Enum.GetNames(typeof(EventTriggerType));
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m_EventTypes = new GUIContent[eventNames.Length];
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for (int i = 0; i < eventNames.Length; ++i)
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{
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m_EventTypes[i] = new GUIContent(eventNames[i]);
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}
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}
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public override void OnInspectorGUI()
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{
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serializedObject.Update();
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int toBeRemovedEntry = -1;
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EditorGUILayout.Space();
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Vector2 removeButtonSize = GUIStyle.none.CalcSize(m_IconToolbarMinus);
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for (int i = 0; i < m_DelegatesProperty.arraySize; ++i)
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{
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SerializedProperty delegateProperty = m_DelegatesProperty.GetArrayElementAtIndex(i);
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SerializedProperty eventProperty = delegateProperty.FindPropertyRelative("eventID");
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SerializedProperty callbacksProperty = delegateProperty.FindPropertyRelative("callback");
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m_EventIDName.text = eventProperty.enumDisplayNames[eventProperty.enumValueIndex];
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EditorGUILayout.PropertyField(callbacksProperty, m_EventIDName);
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Rect callbackRect = GUILayoutUtility.GetLastRect();
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Rect removeButtonPos = new Rect(callbackRect.xMax - removeButtonSize.x - 8, callbackRect.y + 1, removeButtonSize.x, removeButtonSize.y);
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if (GUI.Button(removeButtonPos, m_IconToolbarMinus, GUIStyle.none))
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{
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toBeRemovedEntry = i;
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}
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EditorGUILayout.Space();
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}
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if (toBeRemovedEntry > -1)
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{
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RemoveEntry(toBeRemovedEntry);
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}
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Rect btPosition = GUILayoutUtility.GetRect(m_AddButonContent, GUI.skin.button);
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const float addButonWidth = 200f;
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btPosition.x = btPosition.x + (btPosition.width - addButonWidth) / 2;
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btPosition.width = addButonWidth;
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if (GUI.Button(btPosition, m_AddButonContent))
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{
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ShowAddTriggermenu();
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}
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serializedObject.ApplyModifiedProperties();
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}
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private void RemoveEntry(int toBeRemovedEntry)
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{
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m_DelegatesProperty.DeleteArrayElementAtIndex(toBeRemovedEntry);
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}
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void ShowAddTriggermenu()
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{
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// Now create the menu, add items and show it
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GenericMenu menu = new GenericMenu();
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for (int i = 0; i < m_EventTypes.Length; ++i)
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{
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bool active = true;
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// Check if we already have a Entry for the current eventType, if so, disable it
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for (int p = 0; p < m_DelegatesProperty.arraySize; ++p)
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{
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SerializedProperty delegateEntry = m_DelegatesProperty.GetArrayElementAtIndex(p);
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SerializedProperty eventProperty = delegateEntry.FindPropertyRelative("eventID");
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if (eventProperty.enumValueIndex == i)
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{
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active = false;
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}
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}
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if (active)
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menu.AddItem(m_EventTypes[i], false, OnAddNewSelected, i);
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else
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menu.AddDisabledItem(m_EventTypes[i]);
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}
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menu.ShowAsContext();
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Event.current.Use();
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}
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private void OnAddNewSelected(object index)
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{
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int selected = (int)index;
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m_DelegatesProperty.arraySize += 1;
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SerializedProperty delegateEntry = m_DelegatesProperty.GetArrayElementAtIndex(m_DelegatesProperty.arraySize - 1);
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SerializedProperty eventProperty = delegateEntry.FindPropertyRelative("eventID");
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eventProperty.enumValueIndex = selected;
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serializedObject.ApplyModifiedProperties();
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}
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}
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}
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