C#基于Autocad的二次开发(10.项目启动-菜单和命令)

开始之前确保已完成步骤1创建解决方案和类库项目，并在对应项目中安装nuget包

经过之前几步的项目基础设施搭建以及Autocad部分操作的实现，现在我们启动项目，并且通过C#代码动态创建Autocad的菜单，并且将菜单和自定义Autocad命令进行绑定

ACD.Client项目中创建类文件PluginStart.cs

[assembly: ExtensionApplication(typeof(ACD.Client.PluginStart))]
namespace ACD.Client
{
    internal class PluginStart : IExtensionApplication
    {
        public async void Initialize()
        {
            //获取CAD应用程序
            AcadApplication app = Autodesk.AutoCAD.ApplicationServices.Application.AcadApplication as AcadApplication;
            for (int i = 0; i < app.MenuGroups.Item(0).Menus.Count; i++)
            {
                var name = app.MenuGroups.Item(0).Menus.Item(i).Name;
                if (name == "ACDesignBackground")  //判断菜单是否已存在，如果存在则不再创建
                    return;
            }
            //添加根菜单
            AcadPopupMenu pmParnet = app.MenuGroups.Item(0).Menus.Add("ACDesignBackground");

            pmParnet.AddMenuItem(pmParnet.Count + 1, "ACDesignStart  ", "ACDesignStart ");
            pmParnet.AddMenuItem(pmParnet.Count + 1, "ACDesignStop  ", "ACDesignStop ");

            //将创建的菜单加入到CAD的菜单中
            pmParnet.InsertInMenuBar(app.MenuBar.Count + 1);

            //服务注册
            await AppInit.Init();
        }

        public void Terminate() 
        { 
            AppInit.BackgroundJobServers?.Dispose();
        } 
    }
}

ACD.Client项目中创建类文件Commands.cs

using ACDApplication = Autodesk.AutoCAD.ApplicationServices.Core.Application;

[assembly: CommandClass(typeof(ACD.Client.Commands))]
namespace ACD.Client
{
    internal class Commands
    {
        [CommandMethod("ACDesignStart", CommandFlags.Modal)]
        public void ACDesignStart()
        {
            var hangfire = AppInit.Resolve<IHangfireService>();

            hangfire.AddOrUpdate(() => Console.WriteLine("Hello"), "*/2 * * * * * ", TimeZoneInfo.Local);

            var lines = new List<LinkLineParam>
            {
                 new LinkLineParam
                 {
                     DimPosition=100,
                     EndPoint= new ACDPoint3D(100,100,0),
                     StartPoint=new ACDPoint3D(200,200,0),
                     LineType =  Domain.LineType.DimensionLine,
                     LayerName="尺寸线层"
                 },
                 new LinkLineParam
                 {
                     DimPosition=100,
                     EndPoint= new ACDPoint3D(300,100,0),
                     StartPoint=new ACDPoint3D(500,200,0),
                     LineType =  Domain.LineType.BlockLinkLine,
                     LayerName="center"
                 }
            };

            var logger = AppInit.Resolve<IloggerService>();
            logger.Info("Hello");

            //当前工作文档
            Document document = ACDApplication.DocumentManager.MdiActiveDocument;
            //绘制线条
            ACDOperation.Instance.LinkLine(document.Database,lines);
        }

        [CommandMethod("ACDesignStop", CommandFlags.Modal)]
        public void ACDesignStop()
        {
            AppInit.BackgroundJobServers?.Dispose();
        }
    }
}