自定义函数实例-选择文件

【环境】CAD2014+VS2010

  1 using System.IO;
  2 using System.Windows.Forms;
  3 using Autodesk.AutoCAD.DatabaseServices;
  4 using Autodesk.AutoCAD.EditorInput;
  5 using Autodesk.AutoCAD.Runtime;
  6 using Application = Autodesk.AutoCAD.ApplicationServices.Core.Application;
  7 using OpenFileDialog = Autodesk.AutoCAD.Windows.OpenFileDialog;
  8 using SaveFileDialog = Autodesk.AutoCAD.Windows.SaveFileDialog;
  9 using ofdFlags = Autodesk.AutoCAD.Windows.OpenFileDialog.OpenFileDialogFlags;
 10 using sfdFlags = Autodesk.AutoCAD.Windows.SaveFileDialog.SaveFileDialogFlags;
 11 
 12 namespace CGabriel
 13 {
 14     public class LispFileDialogs
 15     {
 16         public static string title;//对话框标题
 17         public static string defaultFileName;//默认路径
 18         public static string defaultExtension;//拓展名
 19         public static short flags;//
 20         //(setq dwgnm (GetOpenFileDialog "Hello" "D:\test\"  "dwg" 2))
 21         [LispFunction("GetOpenFileDialog")]
 22         public static ResultBuffer GetOpenFileDialog(ResultBuffer args)
 23         {
 24             if (!parseArguments(args)) return null;
 25 
 26             var dlgFlags = (ofdFlags) flags;
 27             if (((dlgFlags & ofdFlags.DefaultIsFolder) != 0) && Path.HasExtension(defaultFileName))
 28                 defaultFileName = Path.GetDirectoryName(defaultFileName);
 29 
 30             var dlg = new OpenFileDialog(title, defaultFileName, defaultExtension, title, dlgFlags);
 31             if (dlg.ShowDialog() != DialogResult.OK)
 32                 return null;
 33 
 34             var result = new ResultBuffer();
 35             foreach (string file in dlg.GetFilenames())
 36                 result.Add(new TypedValue((int) LispDataType.Text, file));
 37             return result;
 38         }
 39 
 40         [LispFunction("GetSaveFileDialog")]
 41         public static TypedValue GetSaveFileDialog(ResultBuffer args)
 42         {
 43             if (!parseArguments(args))
 44                 return new TypedValue((int) LispDataType.Nil, null);
 45 
 46             var dlgFlags = (sfdFlags) flags;
 47             if (((dlgFlags & sfdFlags.DefaultIsFolder) != 0) && Path.HasExtension(defaultFileName))
 48                 defaultFileName = Path.GetDirectoryName(defaultFileName);
 49 
 50             var dlg = new SaveFileDialog(title, defaultFileName, defaultExtension, title, dlgFlags);
 51             if (dlg.ShowDialog() != DialogResult.OK)
 52                 return new TypedValue((int) LispDataType.Nil, null);
 53 
 54             return new TypedValue((int) LispDataType.Text, dlg.Filename);
 55         }
 56 
 57         public static bool parseArguments(ResultBuffer args)
 58         {
 59             Editor ed = Application.DocumentManager.MdiActiveDocument.Editor;
 60             if (args == null)
 61                 return notEnoughArguments(ed);
 62 
 63             ResultBufferEnumerator iter = args.GetEnumerator();
 64 
 65             iter.MoveNext();
 66             if (iter.Current.TypeCode != (short) LispDataType.Text)
 67                 return wrongArguments(ed);
 68             title = (string) iter.Current.Value;
 69 
 70             if (iter.MoveNext() == false)
 71                 return notEnoughArguments(ed);
 72             if (iter.Current.TypeCode != (short) LispDataType.Text)
 73                 return wrongArguments(ed);
 74             defaultFileName = (string) iter.Current.Value;
 75 
 76             if (iter.MoveNext() == false)
 77                 return notEnoughArguments(ed);
 78             if (iter.Current.TypeCode != (short) LispDataType.Text)
 79                 return wrongArguments(ed);
 80             defaultExtension = (string) iter.Current.Value;
 81 
 82             if (iter.MoveNext() == false)
 83                 return notEnoughArguments(ed);
 84             if (iter.Current.TypeCode != (short) LispDataType.Int16)
 85                 return wrongArguments(ed);
 86             flags = (short) iter.Current.Value;
 87 
 88             return true;
 89         }
 90 
 91         public static bool notEnoughArguments(Editor ed)
 92         {
 93             ed.WriteMessage("
Too few arguments.");
 94             return false;
 95         }
 96 
 97         public static bool wrongArguments(Editor ed)
 98         {
 99             ed.WriteMessage("
Expected string string string int.");
100             return false;
101         }
102     }
103 }

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原文地址：https://www.cnblogs.com/belx/p/10102348.html