private void hosting_InitFormElementsComponentComplete(FormDesignSurfaceHosting hosting)
{
if (HostingInitFormElementsComponentComplete != null)
{
HostingInitFormElementsComponentComplete(hosting);
}
}
/// <summary>
/// 更新属性网格选定的对象
/// </summary>
private void UpdateSelection(FormDesignSurfaceHosting hosting)
{
//这里不能直接这样写==null，省下面两个else
//这样写的结果是切换选择的对象时，PropertyGrid中间都会经历一次没有选择的状态
//使行共享功能完全失效！
//this.SelectedObject = null;
if (hosting != null && hosting.SelectionService != null)
{
ICollection selection = hosting.SelectionService.GetSelectedComponents();
if (selection != null)
{
object[] selArray = new object[selection.Count];
selection.CopyTo(selArray, 0);
this.SelectedObjects = selArray;
}
else
{
this.SelectedObject = null;
}
}
else
{
this.SelectedObject = null;
}
}
void _container_HostingInitFormElementsComponentComplete(FormDesignSurfaceHosting hosting)
{
if (hosting == _container.ActiveHosting)
{
UpdateStatus(hosting);
}
}
public void Create(WindowEntity formEntity)
{
//不能在FormDesignSurfaceHosting的VisibleChanged事件中，设置当前活动设计器或撤销重做引擎这些当前对象
//在多个设计窗体切换时，要显示的窗体的Visible=true,然后被切掉的窗体才Visible=false，永远走到false里去
if (OnDesign(formEntity.Id))
{
//激活
foreach (IDockContent dockContent in this.dockPanel.Documents)
{
FormDesignSurfaceHosting hosting = dockContent as FormDesignSurfaceHosting;
if (hosting.WindowEntity.Id == formEntity.Id)
{
dockContent.DockHandler.Activate();
}
}
}
else
{
//创建新的设计器容器
FormDesignSurfaceHosting hosting = new FormDesignSurfaceHosting(formEntity, this._designSurfaceManager.NewDesignSurface(), this);
hosting.SelectionService.SelectionChanged += new EventHandler(SelectionService_SelectionChanged);
hosting.InitFormElementsComponentComplete += new FormDesignSurfaceHosting.OnInitFormElementsComponentCompleteHandler(hosting_InitFormElementsComponentComplete);
hosting.DockAreas = DockAreas.Document;
hosting.Show(this.dockPanel);
}
}
private void _container_ActiveHostingChanged(FormDesignSurfaceHosting hosting)
{
if (hosting != null)
{
this.Toolbox.DesignerHost = hosting.DesignerHost;
}
else
{
this.Toolbox.DesignerHost = null;
}
}
/// <summary>
/// 判断指定ID的窗体实体对象是否处于设计中
/// </summary>
/// <param name="id"></param>
/// <returns></returns>
public bool OnDesign(string id)
{
foreach (IDockContent dockContent in this.dockPanel.Documents)
{
FormDesignSurfaceHosting hosting = dockContent as FormDesignSurfaceHosting;
if (hosting.WindowEntity.Id == id)
{
return(true);
}
}
return(false);
}
/// <summary>
/// 更新/设置属性面板窗体
/// </summary>
private void UpdateStatus(FormDesignSurfaceHosting hosting)
{
if (hosting != null && hosting.DesignerHost != null)
{
this.Host = hosting.DesignerHost;
this.SelectableObjects = hosting.DesignerHost.Container.Components;
}
else
{
this.Host = null;
this.SelectableObjects = null;
}
UpdateSelection(hosting);
}
private void UpdateSelection(FormDesignSurfaceHosting hosting)
{
if (hosting == null || hosting.SelectionService == null)
{
this.Entity = null;
return;
}
ICollection selection = hosting.SelectionService.GetSelectedComponents();
if (selection != null && selection.Count == 1)
{
object[] selArray = new object[selection.Count];
selection.CopyTo(selArray, 0);
IShellControlDev shellControlDev = selArray[0] as IShellControlDev;
if (shellControlDev != null)
{
this.Entity = shellControlDev.Entity;
}
}
else
{
this.Entity = null;
}
}
void _container_ActiveHostingChanged(FormDesignSurfaceHosting hosting)
{
UpdateStatus(hosting);
}
void _container_HostingSelectionChanged(FormDesignSurfaceHosting hosting)
{
UpdateSelection(hosting);
}
private void _container_ActiveHostingChanged(FormDesignSurfaceHosting hosting)
{
UpdateSelection(hosting);
}
