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public class FindReferencesInProjectEditor : EditorWindow
{
private Rect m_viewportRect = default;
private Rect m_listRect = default;
private Rect m_bottomRect = default;
private float m_scrollPosition = default;
private string[] m_targetPaths = null;
private const float ELEMENT_HEIGHT = 20.0f;
private const float ELEMENT_ICON_SIZE = 20.0f;
private const float SCROLLER_WIDTH = 15.0f;
private bool m_hasGetGUIStyle = false;
private GUIStyle m_scrollerStyle = null;
private GUIStyle m_buttonElementStyle = null;
private UnityEngine.Object m_selectedUnityObject = null;
private System.Type m_uobjType = null;
public static void OpenWindow()
{
FindReferencesInProjectEditor window = GetWindow<FindReferencesInProjectEditor>();
Texture2D icon = EditorGUIUtility.Load("icons/UnityEditor.ConsoleWindow.png") as Texture2D;
window.titleContent = new GUIContent("reference find result", icon);
Vector2 minSize = new Vector2(500.0f, 300.0f);
window.minSize = minSize;
}
public static FindReferencesInProjectEditor GetWindow()
{
return GetWindow<FindReferencesInProjectEditor>();
}
public void SetPaths(in string[] paths)
{
m_targetPaths = paths;
}
public void SetTargetUobject(UnityEngine.Object uobject)
{
m_selectedUnityObject = uobject;
}
private void DrawContent()
{
m_viewportRect = new Rect(0.0f, 0.0f, this.position.width - SCROLLER_WIDTH, this.position.height * 0.8f);
m_listRect = new Rect(0.0f, 0.0f, m_viewportRect.width, m_viewportRect.height);
int elementCount = m_targetPaths.Length;
if (elementCount < 1)
return;
GUI.BeginClip(m_listRect);
int indexOffset = Mathf.FloorToInt(m_scrollPosition / ELEMENT_HEIGHT);
int showCount = Mathf.CeilToInt(m_listRect.height / ELEMENT_HEIGHT);
showCount = showCount > elementCount ? elementCount : showCount;
float startPosY = (indexOffset * ELEMENT_HEIGHT) - m_scrollPosition;
for (int i = 0; i < showCount; i++)
{
Rect elementRect = new Rect(0, 0 + startPosY + i * ELEMENT_HEIGHT, m_listRect.width, ELEMENT_HEIGHT);
DrawElement(elementRect, indexOffset + i);
}
GUI.EndClip();
}
private void DrawElement(Rect elementRect, int dataIndex)
{
if (dataIndex < m_targetPaths.Length && GUI.Button(elementRect, $"path {m_targetPaths[dataIndex]} ;", m_buttonElementStyle))
{
Debug.Log($"{m_targetPaths[dataIndex]}");
UnityEngine.Object targetObj = AssetDatabase.LoadAssetAtPath<UnityEngine.Object>(m_targetPaths[dataIndex]);
EditorGUIUtility.PingObject(targetObj);
}
}
private void DrawScroller()
{
int elementCount = m_targetPaths.Length;
float fullElementHeight = elementCount * ELEMENT_HEIGHT;
Rect scrollbarRect = new Rect(m_viewportRect.x + m_viewportRect.width, m_viewportRect.y, SCROLLER_WIDTH, m_viewportRect.height);
m_scrollPosition = Mathf.Max(0, GUI.VerticalScrollbar(scrollbarRect, m_scrollPosition, m_listRect.height, 0, Mathf.Max(fullElementHeight, m_listRect.height)));
int controlId = GUIUtility.GetControlID(FocusType.Passive);
float scrollSensitivity = ELEMENT_HEIGHT;
float maxScrollPos = (fullElementHeight > m_listRect.height) ? (fullElementHeight - m_listRect.height) : 0;
if (EventType.ScrollWheel == Event.current.GetTypeForControl(controlId))
{
m_scrollPosition = Mathf.Clamp(m_scrollPosition + Event.current.delta.y * scrollSensitivity, 0, maxScrollPos);
Event.current.Use();
}
}
private void GetGUIStyle()
{
m_scrollerStyle = new GUIStyle(GUI.skin.verticalScrollbar);
m_scrollerStyle.stretchWidth = false;
m_scrollerStyle.fixedWidth = SCROLLER_WIDTH;
m_buttonElementStyle = new GUIStyle(GUI.skin.button);
m_buttonElementStyle.alignment = TextAnchor.MiddleLeft;
m_uobjType = typeof(UnityEngine.Object);
}
private void DrawBottom()
{
m_bottomRect = new Rect(0.0f, this.position.height * 0.8f, this.position.width, this.position.height * 0.2f);
Rect fieldRect = new Rect(10.0f, m_bottomRect.y + 10.0f, 100.0f, 20.0f);
if (null == m_uobjType)
m_uobjType = typeof(UnityEngine.Object);
m_selectedUnityObject = EditorGUI.ObjectField(fieldRect, m_selectedUnityObject, m_uobjType, true);
Rect buttonRect = new Rect(150.0f, m_bottomRect.y, 200.0f, 40.0f);
if (GUI.Button(buttonRect, "try find reference"))
{
FindObjectReference();
}
}
private void FindObjectReference()
{
if (null == m_selectedUnityObject)
{
return;
}
Clear();
FindReferencesInProject.TryFindReferenceOfUobject(m_selectedUnityObject);
}
private void Clear()
{
m_targetPaths = System.Array.Empty<string>();
}
private void OnGUI()
{
if (!m_hasGetGUIStyle)
{
GetGUIStyle();
m_hasGetGUIStyle = true;
}
DrawContent();
DrawScroller();
DrawBottom();
}
}
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