samples/CSharp/WPF_WinForms/OCCViewer.cs

   1 using System;
   2 using System.Collections.Generic;
   3 using System.Linq;
   4 using System.Text;
   5 using System.Windows.Forms;
   6
   7 namespace IE_WPF_WinForms
   8 {
   9     public enum CurrentAction3d
  10     {
  11         CurAction3d_Nothing,
  12         CurAction3d_DynamicZooming,
  13         CurAction3d_WindowZooming,
  14         CurAction3d_DynamicPanning,
  15         CurAction3d_GlobalPanning,
  16         CurAction3d_DynamicRotation
  17     }
  18     public enum CurrentPressedKey
  19     {
  20         CurPressedKey_Nothing,
  21         CurPressedKey_Ctrl,
  22         CurPressedKey_Shift
  23     }
  24     public enum ModelFormat
  25     {
  26         BREP,
  27         CSFDB,
  28         STEP,
  29         IGES,
  30         VRML,
  31         STL,
  32         IMAGE
  33     }
  34
  35     public enum DisplayMode
  36     {
  37         Wireframe,
  38         Shading
  39     }
  40
  41     public class OCCViewer : System.Windows.Forms.Form
  42     {
  43         public event EventHandler ZoomingFinished;
  44         protected void RaiseZoomingFinished()
  45         {
  46             if ( ZoomingFinished != null )
  47             {
  48                 ZoomingFinished( this, EventArgs.Empty );
  49             }
  50         }
  51
  52         public event EventHandler AvaliabiltyOfOperationsChanged;
  53         protected void RaiseAvaliabiltyOfOperationsChanged()
  54         {
  55             if ( AvaliabiltyOfOperationsChanged != null )
  56             {
  57                 AvaliabiltyOfOperationsChanged( this, EventArgs.Empty );
  58             }
  59         }
  60
  61         public OCCTProxy View { get; private set; }
  62         public CurrentAction3d CurrentMode { get; private set; }
  63         private CurrentPressedKey CurrentPressedKey { get; set; }
  64         private bool IsRectVisible { get; set; }
  65         public bool DegenerateMode { get; private set; }
  66
  67         public bool IsWireframeEnabled { get; private set; }
  68         public bool IsShadingEnabled { get; private set; }
  69         public bool IsTransparencyEnabled { get; private set; }
  70         public bool IsColorEnabled { get; private set; }
  71         public bool IsMaterialEnabled { get; private set; }
  72         public bool IsDeleteEnabled { get; private set; }
  73
  74         private float myCurZoom;// ~ Quantity_Factor
  75         private int myXmin;
  76         private int myYmin;
  77         private int myXmax;
  78         private int myYmax;
  79         private int myRectDownX;
  80         private int myRectDownY;
  81         private int myButtonDownX;
  82         private int myButtonDownY;
  83
  84         private ContextMenu Popup { get; set; }
  85         private MenuItem ContextWireframe;
  86         private MenuItem ContextShading;
  87         private MenuItem ContextColor;
  88         private MenuItem ContextMaterial;
  89         private MenuItem ContextDelete;
  90         private MenuItem ContextBackground;
  91         private MenuItem ContextTransparency;
  92
  93
  94         public OCCViewer()
  95         {
  96             InitializeComponent();
  97
  98             View = new OCCTProxy();
  99             View.InitOCCTProxy();
 100             if ( !View.InitViewer( this.Handle ) )
 101             {
 102                 MessageBox.Show( "Fatal Error during the graphic initialisation", "Error!" );
 103             }
 104
 105             CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 106             CurrentPressedKey = CurrentPressedKey.CurPressedKey_Nothing;
 107             IsRectVisible = false;
 108             DegenerateMode = true;
 109         }
 110
 111         private void InitializeComponent()
 112         {
 113             ControlBox = false;
 114             TopLevel = false;
 115
 116             this.ImeMode = System.Windows.Forms.ImeMode.NoControl;
 117
 118             SizeChanged += new System.EventHandler( OnSizeChanged );
 119             Paint += new System.Windows.Forms.PaintEventHandler( OnPaint );
 120
 121             MouseDown += new System.Windows.Forms.MouseEventHandler( OnMouseDown );
 122             MouseUp += new System.Windows.Forms.MouseEventHandler( OnMouseUp );
 123             MouseMove += new System.Windows.Forms.MouseEventHandler( OnMouseMove );
 124
 125             Popup = new ContextMenu();
 126             ContextWireframe = new MenuItem();
 127             ContextShading = new MenuItem();
 128             ContextColor = new MenuItem();
 129             ContextMaterial = new MenuItem();
 130             ContextTransparency = new MenuItem();
 131             ContextDelete = new MenuItem();
 132             ContextBackground = new MenuItem();
 133
 134             ContextWireframe.Text = "Wireframe";
 135             ContextShading.Text = "Shading";
 136             ContextColor.Text = "Color";
 137             ContextMaterial.Text = "Material";
 138             ContextTransparency.Text = "Transparency";
 139             ContextDelete.Text = "Delete";
 140             ContextBackground.Text = "Background";
 141
 142             ContextWireframe.Click += new System.EventHandler( ContextWireframe_Click );
 143             ContextShading.Click += new System.EventHandler( ContextShading_Click );
 144             ContextColor.Click += new System.EventHandler( ContextColor_Click );
 145             ContextMaterial.Click += new System.EventHandler( ContextMaterial_Click );
 146             ContextTransparency.Click += new System.EventHandler( ContextTransparency_Click );
 147             ContextDelete.Click += new System.EventHandler( ContextDelete_Click );
 148             ContextBackground.Click += new System.EventHandler( ContextBackground_Click );
 149
 150             Popup.MenuItems.AddRange( new MenuItem[] { ContextWireframe,
 151                                                            ContextShading,
 152                                                            ContextColor,
 153                                                            ContextMaterial,
 154                                                            ContextTransparency,
 155                                                            ContextDelete,
 156                                                        ContextBackground } );
 157             Popup.Popup += new System.EventHandler( OnPopup );
 158         }
 159
 160         private void OnPaint(object sender, System.Windows.Forms.PaintEventArgs e)
 161         {
 162             View.RedrawView();
 163             View.UpdateView();
 164         }
 165
 166         private void OnSizeChanged(object sender, System.EventArgs e)
 167         {
 168             View.UpdateView();
 169         }
 170
 171         public void ImportModel( ModelFormat theFormat )
 172         {
 173             int aFormat = 10;
 174             OpenFileDialog anOpenDialog = new OpenFileDialog();
 175             string aDataDir = ( (Environment.GetEnvironmentVariable("CASROOT")) + "\\..\\data" );
 176             string aFilter = "";
 177
 178             switch ( theFormat )
 179             {
 180                 case ModelFormat.BREP:
 181                     anOpenDialog.InitialDirectory = (aDataDir + "\\occ");
 182                     aFormat = 0;
 183                     aFilter = "BREP Files (*.brep *.rle)|*.brep; *.rle";
 184                     break;
 185                 case ModelFormat.CSFDB:
 186                     aFormat = 1;
 187                     aFilter = "CSFDB Files (*.csfdb)|*.csfdb";
 188                     break;
 189                 case ModelFormat.STEP:
 190                     anOpenDialog.InitialDirectory = (aDataDir + "\\step");
 191                     aFormat = 2;
 192                     aFilter = "STEP Files (*.stp *.step)|*.stp; *.step";
 193                     break;
 194                 case ModelFormat.IGES:
 195                     anOpenDialog.InitialDirectory = (aDataDir + "\\iges");
 196                     aFormat = 3;
 197                     aFilter = "IGES Files (*.igs *.iges)|*.igs; *.iges";
 198                     break;
 199                 default:
 200                     break;
 201             }
 202
 203             anOpenDialog.Filter = aFilter + "|All files (*.*)|*.*";
 204             if (anOpenDialog.ShowDialog() == DialogResult.OK)
 205             {
 206                 string aFileName = anOpenDialog.FileName;
 207                 if (aFileName == "")
 208                 {
 209                     return;
 210                 }
 211
 212                 Cursor = System.Windows.Forms.Cursors.WaitCursor;
 213                 if ( !View.TranslateModel( aFileName, aFormat, true ) )
 214                 {
 215                     MessageBox.Show( "Cann't read this file", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Warning );
 216                 }
 217                 Cursor = System.Windows.Forms.Cursors.Default;
 218             }
 219             View.ZoomAllView();
 220         }
 221
 222         public void ExportModel( ModelFormat theFormat )
 223         {
 224             int aFormat = 10;
 225             SaveFileDialog saveDialog = new SaveFileDialog();
 226             string aDataDir = ( (Environment.GetEnvironmentVariable("CASROOT") ) + "\\..\\data" );
 227             string aFilter = "";
 228
 229             switch ( theFormat )
 230             {
 231                 case ModelFormat.BREP:
 232                     saveDialog.InitialDirectory = ( aDataDir + "\\occ" );
 233                     aFormat = 0;
 234                     aFilter = "BREP Files (*.brep *.rle)|*.brep; *.rle";
 235                     break;
 236                 case ModelFormat.CSFDB:
 237                     aFormat = 1;
 238                     aFilter = "CSFDB Files (*.csfdb)|*.csfdb";
 239                     break;
 240                 case ModelFormat.STEP:
 241                     saveDialog.InitialDirectory = ( aDataDir + "\\step" );
 242                     aFormat = 2;
 243                     aFilter = "STEP Files (*.stp *.step)|*.step; *.stp";
 244                     break;
 245                 case ModelFormat.IGES:
 246                     saveDialog.InitialDirectory = ( aDataDir + "\\iges" );
 247                     aFormat = 3;
 248                     aFilter = "IGES Files (*.igs *.iges)| *.iges; *.igs";
 249                     break;
 250                 case ModelFormat.VRML:
 251                     saveDialog.InitialDirectory = ( aDataDir + "\\vrml" );
 252                     aFormat = 4;
 253                     aFilter = "VRML Files (*.vrml)|*.vrml";
 254                     break;
 255                 case ModelFormat.STL:
 256                     saveDialog.InitialDirectory = ( aDataDir + "\\stl" );
 257                     aFormat = 5;
 258                     aFilter = "STL Files (*.stl)|*.stl";
 259                     break;
 260                 case ModelFormat.IMAGE:
 261                     saveDialog.InitialDirectory = ( aDataDir + "\\images" );
 262                     aFormat = 6;
 263                     aFilter = "Images Files (*.bmp)|*.bmp";
 264                     break;
 265                 default:
 266                     break;
 267             }
 268
 269             saveDialog.Filter = aFilter;
 270             if ( saveDialog.ShowDialog() == DialogResult.OK )
 271             {
 272                 string aFileName = saveDialog.FileName;
 273                 if ( aFileName == "" )
 274                 {
 275                     return;
 276                 }
 277
 278                 Cursor = System.Windows.Forms.Cursors.WaitCursor;
 279                 if ( !View.TranslateModel( aFileName, aFormat, false ) )
 280                 {
 281                     MessageBox.Show( "Can not write this file", "Error!", MessageBoxButtons.OK, MessageBoxIcon.Warning );
 282                 }
 283                 Cursor = System.Windows.Forms.Cursors.Default;
 284             }
 285         }
 286
 287         public void FitAll()
 288         {
 289             View.ZoomAllView();
 290         }
 291
 292         public void ZoomWindow()
 293         {
 294             CurrentMode = CurrentAction3d.CurAction3d_WindowZooming;
 295         }
 296
 297         public void DynamicZooming()
 298         {
 299             CurrentMode = CurrentAction3d.CurAction3d_DynamicZooming;
 300         }
 301
 302         public void DynamicPanning()
 303         {
 304             CurrentMode = CurrentAction3d.CurAction3d_DynamicPanning;
 305         }
 306
 307         public void GlobalPanning()
 308         {
 309             myCurZoom = View.Scale();
 310             CurrentMode = CurrentAction3d.CurAction3d_GlobalPanning;
 311         }
 312
 313         public void AxoView()
 314         {
 315             View.AxoView();
 316         }
 317
 318         public void FrontView()
 319         {
 320             View.FrontView();
 321         }
 322
 323         public void TopView()
 324         {
 325             View.TopView();
 326         }
 327
 328         public void LeftView()
 329         {
 330             View.LeftView();
 331         }
 332
 333         public void BackView()
 334         {
 335             View.BackView();
 336         }
 337
 338         public void RightView()
 339         {
 340             View.RightView();
 341         }
 342
 343         public void Reset()
 344         {
 345             View.Reset();
 346         }
 347
 348         public void BottomView()
 349         {
 350             View.BottomView();
 351         }
 352
 353         public void HiddenOff()
 354         {
 355             View.SetDegenerateModeOff();
 356             DegenerateMode = false;
 357         }
 358
 359         public void HiddenOn()
 360         {
 361             View.SetDegenerateModeOn();
 362             DegenerateMode = true;
 363         }
 364
 365         public void DynamicRotation()
 366         {
 367             CurrentMode = CurrentAction3d.CurAction3d_DynamicRotation;
 368         }
 369
 370         public void SelectionChanged()
 371         {
 372             switch ( View.DisplayMode() )
 373             {
 374                 case -1:
 375                     IsShadingEnabled = false;
 376                     IsWireframeEnabled = false;
 377                     break;
 378                 case 0:
 379                     IsWireframeEnabled = false;
 380                     IsShadingEnabled = true;
 381                     IsTransparencyEnabled = false;
 382                     break;
 383                 case 1:
 384                     IsWireframeEnabled = true;
 385                     IsShadingEnabled = false;
 386                     IsTransparencyEnabled = true;
 387                     break;
 388                 case 10:
 389                     IsWireframeEnabled = true;
 390                     IsShadingEnabled = true;
 391                     IsTransparencyEnabled = true;
 392                     break;
 393                 default:
 394                     break;
 395             }
 396
 397             if ( View.IsObjectSelected() )
 398             {
 399                 IsColorEnabled = true;
 400                 IsMaterialEnabled = true;
 401                 IsDeleteEnabled = true;
 402             }
 403             else
 404             {
 405                 IsColorEnabled = false;
 406                 IsMaterialEnabled = false;
 407                 IsTransparencyEnabled = false;
 408                 IsDeleteEnabled = false;
 409             }
 410
 411             RaiseAvaliabiltyOfOperationsChanged();
 412         }
 413
 414         public void ChangeColor( bool IsObjectColor )
 415         {
 416             int r, g, b;
 417             if ( IsObjectColor )
 418             {
 419                 r = View.GetObjColR();
 420                 g = View.GetObjColG();
 421                 b = View.GetObjColB();
 422             }
 423             else
 424             {
 425                 r = View.GetBGColR();
 426                 g = View.GetBGColG();
 427                 b = View.GetBGColB();
 428             }
 429             System.Windows.Forms.ColorDialog ColDlg = new System.Windows.Forms.ColorDialog();
 430             ColDlg.Color = System.Drawing.Color.FromArgb( r, g, b );
 431             if ( ColDlg.ShowDialog() == System.Windows.Forms.DialogResult.OK )
 432             {
 433                 System.Drawing.Color c = ColDlg.Color;
 434                 r = c.R;
 435                 g = c.G;
 436                 b = c.B;
 437                 if ( IsObjectColor )
 438                 {
 439                     View.SetColor( r, g, b );
 440                 }
 441                 else
 442                 {
 443                     View.SetBackgroundColor( r, g, b );
 444                 }
 445             }
 446             View.UpdateCurrentViewer();
 447         }
 448
 449         public void Wireframe()
 450         {
 451             View.SetDisplayMode( (int)DisplayMode.Wireframe );
 452             View.UpdateCurrentViewer();
 453
 454             SelectionChanged();
 455             RaiseZoomingFinished();
 456         }
 457
 458         public void Shading()
 459         {
 460             View.SetDisplayMode( (int)DisplayMode.Shading );
 461             View.UpdateCurrentViewer();
 462
 463             SelectionChanged();
 464             RaiseZoomingFinished();
 465         }
 466
 467         public void Color()
 468         {
 469             ChangeColor( true );
 470         }
 471
 472         public void Background()
 473         {
 474             ChangeColor( false );
 475         }
 476
 477         public void Material()
 478         {
 479             MaterialDlg aDlg = new MaterialDlg( View );
 480             aDlg.ShowDialog();
 481         }
 482
 483         public void Transparency()
 484         {
 485             TransparencyDialog dlg = new TransparencyDialog();
 486             dlg.View = View;
 487             dlg.ShowDialog( this );
 488         }
 489
 490         public void Delete()
 491         {
 492             View.EraseObjects();
 493         }
 494
 495         public void OnKeyDown( System.Windows.Input.Key theKey )
 496         {
 497             if ( theKey == System.Windows.Input.Key.LeftShift ||
 498                  theKey == System.Windows.Input.Key.RightShift )
 499             {
 500                 CurrentPressedKey = CurrentPressedKey.CurPressedKey_Shift;
 501             }
 502             else if (theKey == System.Windows.Input.Key.LeftCtrl ||
 503                      theKey == System.Windows.Input.Key.RightCtrl )
 504             {
 505                 CurrentPressedKey = CurrentPressedKey.CurPressedKey_Ctrl;
 506             }
 507         }
 508
 509         public void OnKeyUp()
 510         {
 511             CurrentPressedKey = CurrentPressedKey.CurPressedKey_Nothing;
 512         }
 513
 514         protected void MultiDragEvent( int x, int y, int theState )
 515         {
 516             if ( theState == -1 ) //mouse is down
 517             {
 518                 myButtonDownX = x;
 519                 myButtonDownY = y;
 520             }
 521             else if ( theState ==  1) //mouse is up
 522             {
 523                 View.ShiftSelect( Math.Min( myButtonDownX, x ), Math.Min( myButtonDownY, y ),
 524                                   Math.Max( myButtonDownX, x ), Math.Max( myButtonDownY, y ) );
 525             }
 526         }
 527
 528         protected void DragEvent( int x, int y, int theState )
 529         {
 530             if ( theState == -1 ) //mouse is down
 531             {
 532                 myButtonDownX = x;
 533                 myButtonDownY = y;
 534             }
 535             else if ( theState == 1 ) //mouse is up
 536             {
 537                 View.Select( Math.Min( myButtonDownX, x ), Math.Min( myButtonDownY, y ),
 538                              Math.Max( myButtonDownX, x ), Math.Max( myButtonDownY, y ) );
 539             }
 540         }
 541
 542         private void DrawRectangle( bool draw )
 543         {
 544             System.Drawing.Graphics gr = System.Drawing.Graphics.FromHwnd(Handle);
 545             System.Drawing.Pen p = null;
 546             if ( IsRectVisible || !draw )//erase the rect
 547             {
 548                 int r = View.GetBGColR();
 549                 int g = View.GetBGColG();
 550                 int b = View.GetBGColB();
 551                 p = new System.Drawing.Pen( System.Drawing.Color.FromArgb(r, g, b) );
 552                 IsRectVisible = false;
 553                 View.UpdateView();
 554             }
 555             else if ( draw )
 556             {
 557                 p = new System.Drawing.Pen( System.Drawing.Color.White );
 558                 IsRectVisible = true;
 559             }
 560             if ( p == null )
 561             {
 562                 return;
 563             }
 564             int x = Math.Min( myXmin, myXmax );
 565             int y = Math.Min( myYmin, myYmax );
 566             gr.DrawRectangle( p, x, y, Math.Abs(myXmax - myXmin), Math.Abs(myYmax - myYmin) );
 567             myRectDownX = Math.Max( myXmin, myXmax );
 568             myRectDownY = Math.Max( myYmin, myYmax );
 569         }
 570
 571         private void OnMouseDown( object sender, System.Windows.Forms.MouseEventArgs e )
 572         {
 573             if ( e.Button == MouseButtons.Left )
 574             {
 575                 myXmin = e.X;
 576                 myXmax = e.X;
 577                 myYmin = e.Y;
 578                 myYmax = e.Y;
 579                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl )
 580                 {
 581                     // start the dinamic zooming....
 582                     CurrentMode = CurrentAction3d.CurAction3d_DynamicZooming;
 583                 }
 584                 else
 585                 {
 586                     switch ( CurrentMode )
 587                     {
 588                         case CurrentAction3d.CurAction3d_Nothing:
 589                             if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Shift )
 590                             {
 591                                 MultiDragEvent( myXmax, myYmax, -1 );
 592                             }
 593                             else
 594                             {
 595                                 DragEvent( myXmax, myYmax, -1 );
 596                             }
 597                             break;
 598                         case CurrentAction3d.CurAction3d_DynamicRotation:
 599                             if ( !DegenerateMode )
 600                             {
 601                                 View.SetDegenerateModeOn();
 602                             }
 603                             View.StartRotation( e.X, e.Y );
 604                             break;
 605                         case CurrentAction3d.CurAction3d_WindowZooming:
 606                             Cursor = Cursors.Hand;
 607                             break;
 608                         default:
 609                             break;
 610                     }
 611                 }
 612             }
 613             else if ( e.Button == MouseButtons.Right )
 614             {
 615                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl )
 616                 {
 617                     if ( !DegenerateMode )
 618                     {
 619                         View.SetDegenerateModeOn();
 620                     }
 621                     View.StartRotation( e.X, e.Y );
 622                 }
 623                 else
 624                 {
 625                     Popup.Show( this, new System.Drawing.Point( e.X, e.Y ) );
 626                 }
 627             }
 628         }
 629
 630         private void OnMouseUp( object sender, System.Windows.Forms.MouseEventArgs e )
 631         {
 632             if ( e.Button == MouseButtons.Left )
 633             {
 634                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl )
 635                 {
 636                     return;
 637                 }
 638                 switch ( CurrentMode )
 639                 {
 640                     case CurrentAction3d.CurAction3d_Nothing:
 641                         if ( e.X == myXmin && e.Y == myYmin )
 642                         {
 643                             myXmax = e.X;
 644                             myYmax = e.Y;
 645                             if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Shift )
 646                             {
 647                                 View.ShiftSelect();
 648                             }
 649                             else
 650                             {
 651                                 View.Select();
 652                             }
 653                         }
 654                         else
 655                         {
 656                             myXmax = e.X;
 657                             myYmax = e.Y;
 658                             DrawRectangle( false );
 659                             if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Shift )
 660                             {
 661                                 MultiDragEvent( myXmax, myYmax, 1 );
 662                             }
 663                             else
 664                             {
 665                                 DragEvent( myXmax, myYmax, 1 );
 666                             }
 667                         }
 668                         break;
 669                     case CurrentAction3d.CurAction3d_DynamicZooming:
 670                         CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 671                         break;
 672                     case CurrentAction3d.CurAction3d_WindowZooming:
 673                         myXmax = e.X;
 674                         myYmax = e.Y;
 675                         DrawRectangle( false );
 676                         int ValZWMin = 1;
 677                         if ( Math.Abs(myXmax - myXmin) > ValZWMin &&
 678                              Math.Abs(myXmax - myYmax) > ValZWMin )
 679                         {
 680                             View.WindowFitAll( myXmin, myYmin, myXmax, myYmax );
 681                         }
 682                         Cursor = Cursors.Arrow;
 683                         RaiseZoomingFinished();
 684                         CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 685                         break;
 686                     case CurrentAction3d.CurAction3d_DynamicPanning:
 687                         CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 688                         break;
 689                     case CurrentAction3d.CurAction3d_GlobalPanning:
 690                         View.Place( e.X, e.Y, myCurZoom );
 691                         CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 692                         break;
 693                     case CurrentAction3d.CurAction3d_DynamicRotation:
 694                         CurrentMode = CurrentAction3d.CurAction3d_Nothing;
 695                         if ( !DegenerateMode )
 696                         {
 697                             View.SetDegenerateModeOff();
 698                         }
 699                         else
 700                         {
 701                             View.SetDegenerateModeOn();
 702                         }
 703                         break;
 704                     default:
 705                         break;
 706                 }
 707             }
 708             else if ( e.Button == MouseButtons.Right )
 709             {
 710                 if ( !DegenerateMode )
 711                 {
 712                     View.SetDegenerateModeOff();
 713                 }
 714                 else
 715                 {
 716                     View.SetDegenerateModeOn();
 717                 }
 718             }
 719
 720             SelectionChanged();
 721         }
 722
 723         private void OnMouseMove( object sender, System.Windows.Forms.MouseEventArgs e )
 724         {
 725             if ( e.Button == MouseButtons.Left ) //left button is pressed
 726             {
 727                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl )
 728                 {
 729                     View.Zoom(myXmax, myYmax, e.X, e.Y);
 730                     myXmax = e.X;
 731                     myYmax = e.Y;
 732                 }
 733                 else
 734                 {
 735                     switch ( CurrentMode )
 736                     {
 737                         case CurrentAction3d.CurAction3d_Nothing:
 738                             DrawRectangle( false );
 739                             myXmax = e.X;
 740                             myYmax = e.Y;
 741                             DrawRectangle( true );
 742                             break;
 743                         case CurrentAction3d.CurAction3d_DynamicZooming:
 744                             View.Zoom( myXmax, myYmax, e.X, e.Y );
 745                             myXmax = e.X;
 746                             myYmax = e.Y;
 747                             break;
 748                         case CurrentAction3d.CurAction3d_WindowZooming:
 749                             DrawRectangle( false );
 750                             myXmax = e.X;
 751                             myYmax = e.Y;
 752                             DrawRectangle( true );//add brush here
 753                             break;
 754                         case CurrentAction3d.CurAction3d_DynamicPanning:
 755                             View.Pan( e.X - myXmax, myYmax - e.Y );
 756                             myXmax = e.X;
 757                             myYmax = e.Y;
 758                             break;
 759                         case CurrentAction3d.CurAction3d_GlobalPanning:
 760                             break;
 761                         case CurrentAction3d.CurAction3d_DynamicRotation:
 762                             View.Rotation( e.X, e.Y );
 763                             View.RedrawView();
 764                             break;
 765                         default:
 766                             break;
 767                     }
 768                 }
 769             }
 770             else if ( e.Button == MouseButtons.Middle ) //middle button is pressed
 771             {
 772                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl )
 773                 {
 774                     View.Pan( e.X - myXmax, myYmax - e.Y );
 775                     myXmax = e.X;
 776                     myYmax = e.Y;
 777                 }
 778             }
 779             else if ( e.Button == MouseButtons.Right ) //right button is pressed
 780             {
 781                 if ( CurrentPressedKey == CurrentPressedKey.CurPressedKey_Ctrl)
 782                 {
 783                     View.Rotation( e.X, e.Y );
 784                 }
 785             }
 786             else // no buttons are pressed
 787             {
 788                 myXmax = e.X;
 789                 myYmax = e.Y;
 790                 View.MoveTo( e.X, e.Y );
 791             }
 792         }
 793
 794         private void OnPopup( object sender, System.EventArgs e )
 795         {
 796             ContextWireframe.Enabled = IsWireframeEnabled;
 797             ContextShading.Enabled = IsShadingEnabled;
 798             ContextColor.Enabled = IsColorEnabled;
 799             ContextMaterial.Enabled = IsMaterialEnabled;
 800             ContextDelete.Enabled = IsDeleteEnabled;
 801             ContextTransparency.Enabled = IsTransparencyEnabled;
 802             ContextBackground.Enabled = true;
 803         }
 804
 805         private void ContextWireframe_Click( object sender, System.EventArgs e )
 806         {
 807             Wireframe();
 808         }
 809
 810         private void ContextShading_Click( object sender, System.EventArgs e )
 811         {
 812             Shading();
 813         }
 814
 815         private void ContextColor_Click( object sender, System.EventArgs e )
 816         {
 817             Color();
 818         }
 819
 820         private void ContextMaterial_Click( object sender, System.EventArgs e )
 821         {
 822             Material();
 823         }
 824
 825         private void ContextTransparency_Click( object sender, System.EventArgs e )
 826         {
 827             Transparency();
 828         }
 829
 830         private void ContextDelete_Click( object sender, System.EventArgs e )
 831         {
 832             Delete();
 833         }
 834
 835         private void ContextBackground_Click( object sender, System.EventArgs e )
 836         {
 837             Background();
 838         }
 839     }
 840 }