public void Clearup()
{
if (ComponentChanged == false)
{
return;
}
SEUndoUnitAbstract[] unitArray = new SEUndoUnitAbstract[this.Count];
this.CopyTo(unitArray, 0);
foreach (SEUndoUnitAbstract unit in unitArray)
{
SEUndoUnitFormDesigner undoUnitFormDesigner = unit as SEUndoUnitFormDesigner;
if (undoUnitFormDesigner == null)
{
continue;
}
if (undoUnitFormDesigner.ComponentChanged)
{
if (undoUnitFormDesigner.Type == SEUndoUnitFormDesigner.UndoUnitType.ComponentAdded)
{
IShellControlDev shellControlDev;
shellControlDev = undoUnitFormDesigner.Components as IShellControlDev;
Debug.Assert(shellControlDev != null, "Component没有实现IShellControlDev");
if (shellControlDev != null)
{
undoUnitFormDesigner.Entity = shellControlDev.Entity;
}
}
}
else
{
this.Remove(unit);
}
}
}
/// <summary>
/// 在组件已移除时发生
/// 注意:在 DesignSurface Dispose 时,所有组件都会触发此事件
/// 所以在 DesignSurface 的 Unloading 事件里注销了此事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void componentChangeService_ComponentRemoved(object sender, ComponentEventArgs e)
{
if (_designSurfaceUnloading)
{
return;
}
Control control = e.Component as Control;
IShellControlDev shellControlDev = control as IShellControlDev;
//将关联的实体对象从formEntity中删除
this._windowEntity.Elements.Remove((UIElement)shellControlDev.Entity);
ComponentListChanged = true;
#region 封装可撤销的工作单元
//这里也要考虑同时删除多个组件的可能，比如粘贴操作，需要把同时添加的多个组件封装为一个事务
if (!_undoEngine.Working)
{
SEUndoUnitFormDesigner undoUnit = new SEUndoUnitFormDesigner("ComponentRemoved");
undoUnit.Type = SEUndoUnitFormDesigner.UndoUnitType.ComponentRemoved;
undoUnit.Components = e.Component as IComponent;
undoUnit.Entity = shellControlDev.Entity;
this._undoUnitList.Add(undoUnit);
}
#endregion
Debug.WriteLine("删除了窗体对象:" + shellControlDev.Entity.Code);
Debug.WriteLine("当前窗体元素个数:" + this._windowEntity.Elements.Count);
}
public int Add(string name, SEUndoUnitFormDesigner.UndoUnitType type, EntityBase entity, params SEUndoMember[] members)
{
SEUndoUnitFormDesigner undoUnit = new SEUndoUnitFormDesigner(name);
undoUnit.Type = type;
undoUnit.Entity = entity;
undoUnit.Members.AddRange(members);
return(Add(undoUnit));
}
private void PropertyGrid_ObjectPropertyValueChanged(object sender, ObjectPropertyValueChangedEventArgs e)
{
#region 封装可撤销的工作单元
if (ActiveHosting.Loaded)
{
SEUndoUnitFormDesigner undoUnit = new SEUndoUnitFormDesigner(e.PropertyName);
undoUnit.Type = SEUndoUnitFormDesigner.UndoUnitType.ComponentChanged;
undoUnit.Entity = (EntityBase)e.RootObject;
undoUnit.Value = e.TargetObject;
undoUnit.Members.Add(e.Row.PropertyName, e.OldValue, e.NewValue);
ActiveHosting.AddUndoUnitList(undoUnit);
Debug.WriteLine("封装可撤销的工作单元:" + undoUnit.ToString());
}
#endregion
}
/// <summary>
/// 在组件属性发生更改时发生
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void componentChangeService_ComponentChanged(object sender, ComponentChangedEventArgs e)
{
if (_designSurfaceUnloading)
{
return;
}
if (this.HostingContainer.PropertyChanging)
{
return;
}
//同步到控件所关联的Entity中
Control control = e.Component as Control;
if (control == null)
{
return;
}
IShellControlDev shellControlDev = control as IShellControlDev;
if (shellControlDev == null)
{
throw new NotImplementedException();
}
if (shellControlDev.Entity == null)
{
return;
}
if (shellControlDev.ViewUpdating)
{
return;
}
this._componentChanging = true;
//在ComponentAdded之后,ComponentChanged会进来多次
//虽然ComponentAdded事件中已经处理了控件的显示文本,但是最后一次进入ComponentChanged时
//其显示文本又会是类型名开头的文本,不知道为什么,看调用堆栈是从Toolbox过来的
//这里做个判断,若不同强制其更新使用Entity中的文本
if (control.Text != shellControlDev.GetText())
{
control.Text = shellControlDev.GetText();
}
//start:这两行代码拿到Host_TransactionClosed里还不行
//添加控件后触发Host_TransactionClosed事件中，
//this._selectionService.GetSelectedComponents()取下来的不是添加的那个控件，而是根容器窗体，
//或者说添加控件的父控件（暂没实现多级，这一说法未测，目前的情况就是窗体）
//而如果是改变控件的ZOrder，进到这里时，取到的 e.Component是被改变的控件的父控件
//需要到Host_TransactionClosed事件中，去同步实体对象以更新ZOrder
//注意的是，撤销重做操作均不引发ComponentChanged和Host_TransactionClosed事件，需在Undo,Redo操作中同步ZOrder
shellControlDev.UpdateEntity();
//通知属性网格属性已更改
//不能在这里判断_componentChanging，因为更新属性行上的属性值还是必须的
//需要在属性值更新后引发的PropertyGrid_PropertyChanged事件中判断
this.HostingContainer.UpdatePropertyGrid();
//end
#region 封装可撤销的工作单元
if (!_undoEngine.Working)// && !e.NewValue.Equals(e.OldValue))
{
if (e.Member.Name != "Controls")
{
SEUndoUnitFormDesigner undoUnit = new SEUndoUnitFormDesigner(e.Member.Name);
undoUnit.Type = SEUndoUnitFormDesigner.UndoUnitType.ComponentChanged;
undoUnit.Components = e.Component as IComponent;
undoUnit.Entity = shellControlDev.Entity;
undoUnit.Members.Add(e.Member.Name, e.OldValue, e.NewValue);
this._undoUnitList.Add(undoUnit);
}
}
#endregion
this._componentChanging = false;
MakeDirty();
Debug.WriteLine("对象属性已更新:" + shellControlDev.Entity.Code);
}
/// <summary>
/// 在组件已添加时发生
/// 此事件在 FormFormDesinger_Load 执行 InitialseFormElementsComponent() 后挂接
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void componentChangeService_ComponentAdded(object sender, ComponentEventArgs e)
{
//这个事件里的代码主要是为添加的组件添加实体对象
Control control = e.Component as Control;
//如果是窗体,返回
//这里不能和_rootComponentForm比较,_designSurface.CreateRootComponent执行后结果才会赋值到_rootComponentForm
//另外窗体所对应的实体对象不在这里设置
if (control is IWindowDesignerRootComponent)
{
return;
}
//为新增的组件绑定一个实体对象
IShellControlDev shellControlDev = control as IShellControlDev;
if (shellControlDev.Entity == null)
{
//shellControlDev.CreateEntity(this._formEntity);
CreateEntity(shellControlDev);
_windowEntity.Elements.Add((UIElement)shellControlDev.Entity);
}
else
{
if (this.WindowEntity.Elements.Contains(shellControlDev.Entity as UIElement) == false)
{
UIElement formElementEntity = shellControlDev.Entity.Clone() as UIElement;
//要先清除，不能直接赋值
//因为IShellControlDev.Entity的set中有逻辑处理.会把set过来的Entity对象放到原Entity对象一样的FormEntity中
shellControlDev.ClearEntity();
shellControlDev.Entity = formElementEntity;
//添加实体对象到当前FormEntity.Elements中
this.WindowEntity.Elements.Add(formElementEntity);
}
}
shellControlDev.UpdateView();
ComponentListChanged = true;
#region 封装可撤销的工作单元
//这里也要考虑同时添加多个组件的可能，比如粘贴操作，需要把同时添加的多个组件封装为一个事务
if (!_undoEngine.Working)
{
SEUndoUnitFormDesigner undoUnit = new SEUndoUnitFormDesigner("ComponentAdded");
undoUnit.Type = SEUndoUnitFormDesigner.UndoUnitType.ComponentAdded;
undoUnit.Components = e.Component as IComponent;
this._undoUnitList.Add(undoUnit);
}
#endregion
Debug.WriteLine("增加了窗体对象:" + shellControlDev.Entity.Code + "( " + shellControlDev.Entity.GetType().Name + " )");
Debug.WriteLine("当前窗体元素个数:" + this._windowEntity.Elements.Count);
}
