/// <summary>
/// 移除所有选中绘制对象;将自动呈递事务;
/// </summary>
public static void RemoveSelectedDrawObjects(this ICanvasDataContext canvasDataContext)
{
if (canvasDataContext == null)
{
throw new ArgumentNullException(nameof(canvasDataContext));
}
//处于编辑状态时不能进行删除;
if (canvasDataContext.CurrentEditTool != null)
{
return;
}
//选定画布中所有的选中的绘制对象为即将移除的对象;
var allDrawObjectsToBeRemoved = CanvasService.CanvasDataContext?.GetAllVisibleDrawObjects().Where(p => p.IsSelected).ToList();
if (allDrawObjectsToBeRemoved == null || allDrawObjectsToBeRemoved.Count == 0)
{
return;
}
canvasDataContext.RemoveDrawObjects(allDrawObjectsToBeRemoved);
}
