public override bool Execute(UICommandContext ctx)
{
//创建事务
var transaction = new UndoTransaction(ctx.Document);
transaction.Start(this.Name);
var text = new MyTextElement();
text.Text = "这是一个好引擎！";
text.Position = new Vector3(100, 100, 100);
text.AddElement(ctx.Document);
text.Show(ctx.RenderView.GetScene());
//提交事务
transaction.Commit();
ctx.RequestUpdate();
return(true);
}
/// <summary>
/// 换个文档显示
/// </summary>
/// <param name="doc"></param>
public void ResetDocument(Document doc)
{
mDocument = doc;
mRootSceneNode.SetDocument(mDocument);
mDbView = DbView.Cast(mDocument.FindElement(mDocument.GetActiveDbViewId()));
var table = mDocument.FindTable("UserElement");
var userIds = table.GetIds();
var scene = mContext.RenderView.GetScene();
foreach (var id in userIds)
{
var element = mDocument.FindElement(id);
if (MyTextElement.IsKindOf(element))
{
var text = new MyTextElement();
text.Load(UserElement.Cast(element));
text.Show(scene);
}
}
mContext.RequestUpdate();
mRenderCtrl.ZoomAll(0.8f);
}