Editor.HasFrameBounds()

描述

验证是否可以为该编辑器计算自定义边界。

使用此方法验证是否应为该窗口调用 Editor.OnGetFrameBounds。场景视图在调用框架操作时会调用 `HasFrameBounds` 和 `OnGetFrameBounds`。框架操作可以从任何地方调用，但通常在按下 F 键以对选定游戏对象进行框架时调用。

using UnityEngine;
using UnityEditor;

// This example traverses all bones in the hierarchy and calculates bounds for the entire object
public class GameObjectEditorWindow: Editor
{
    private bool HasFrameBounds()
    {
        // the result of this function depends on implementation
        // it will most likely be used to evaluate whether bounds
        // can exist for the targets of this Editor Window
        return Selection.objects.Length > 0;
    }

    public Bounds OnGetFrameBounds()
    {
        Transform bone = Selection.activeTransform;
        Bounds bounds = new Bounds(bone.position, new Vector3(0, 0, 0));
        foreach (Transform child in bone)
            bounds.Encapsulate(child.position);

        if (bone.parent) bounds.Encapsulate(bone.parent.position);

        return bounds;
    }
}