namespace Yw.WpfUI.Hydro
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{
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/// <summary>
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/// 绘制编辑辅助类
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/// </summary>
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internal class DrawEditHelper : IDisposable
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{
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/// <summary>
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///
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/// </summary>
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public DrawEditHelper
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(
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HelixViewport3D viewport,
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DrawInitialHelper initialHelper,
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DrawSelectionHelper selectionHelper
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)
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{
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_viewport = viewport;
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_initialHelper = initialHelper;
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_selectionHelper = selectionHelper;
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Attach();
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}
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#region 事件集合
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/// <summary>
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/// 编辑改变事件
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/// </summary>
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public event Action<List<VisualDraw3D>> EditChangedEvent;
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#endregion
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private readonly HelixViewport3D _viewport = null;//三维组件
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private readonly DrawInitialHelper _initialHelper = null;//初始化辅助类
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private readonly DrawSelectionHelper _selectionHelper = null;//选择辅助类
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private EditDraw3D _editer = null;//编辑器
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/// <summary>
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/// 是否初始化
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/// </summary>
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public bool Initialized
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{
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get { return _initialized; }
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private set { _initialized = value; }
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}
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private bool _initialized = false;
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//初始化
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private void Initialize()
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{
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_initialized = true;
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}
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//处理初始化完成
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private void OnInitialCompleted()
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{
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Initialize();
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}
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/// <summary>
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/// 开始
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/// </summary>
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public bool Start()
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{
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if (!Initialized)
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{
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return false;
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}
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_initialHelper.RegistDrawStatus(eDrawStatusL3d.Edit, End);
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if (_editer == null)
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{
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_editer = new EditDraw3D(_viewport, _initialHelper, _selectionHelper);
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_editer.EditChangedEvent += OnEditChanged;
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_editer.Initial(_selectionHelper.Selection);
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_viewport.Children.Add(_editer);
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}
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return true;
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}
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/// <summary>
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/// 结束
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/// </summary>
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public bool End()
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{
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if (!Initialized)
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{
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return false;
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}
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if (_editer != null)
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{
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_editer.EditChangedEvent -= OnEditChanged;
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_editer.Dispose();
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_viewport.Children.Remove(_editer);
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_editer = null;
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}
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_initialHelper.ResetDrawStatus();
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return true;
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}
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//处理编辑改变
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private void OnEditChanged(List<VisualDraw3D> list)
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{
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this.EditChangedEvent?.Invoke(list);
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}
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//附加
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private void Attach()
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{
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_initialHelper.InitialCompletedEvent += OnInitialCompleted;
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}
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//分离
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private void Detach()
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{
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_initialHelper.InitialCompletedEvent -= OnInitialCompleted;
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}
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/// <summary>
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/// 释放
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/// </summary>
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public void Dispose()
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{
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Detach();
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}
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}
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}
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