lib/maracasVisuLib/src/interface/wxWindows/widgets/include/vtkInteractorStyleCutter.cxx

   1 /*=========================================================================
   2
   3   Program:   Visualization Toolkit
   4   Module:    $RCSfile: vtkInteractorStyleCutter.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2009/05/14 13:54:57 $
   7   Version:   $Revision: 1.1 $
   8
   9   Copyright (c) 1993-2002 Ken Martin, Will Schroeder, Bill Lorensen
  10   All rights reserved.
  11   See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notice for more information.
  16
  17 =========================================================================*/
  18 #include "vtkInteractorStyleCutter.h"
  19
  20 #include <vtkPoints.h>
  21 #include <vtkActor2D.h>
  22 #include <vtkObjectFactory.h>
  23 #include <vtkRenderer.h>
  24 #include <vtkRenderWindowInteractor.h>
  25 #include <vtkCellArray.h>
  26 #include <vtkPolyData.h>
  27 #include <vtkPolyDataMapper2D.h>
  28 #include <vtkProperty2D.h>
  29 #include <vtkCamera.h>
  30
  31 vtkCxxRevisionMacro(vtkInteractorStyleCutter, "$Revision: 1.1 $");
  32 vtkStandardNewMacro(vtkInteractorStyleCutter);
  33
  34 //----------------------------------------------------------------------------
  35 vtkInteractorStyleCutter::vtkInteractorStyleCutter()
  36 {
  37   this->CurrentPosition[0] = this->CurrentPosition[1] = 0;
  38   this->Direction[0] = this->Direction[1] = this->Direction[2] = 0.;
  39   this->Moving = 0;
  40
  41   this->Points = vtkPoints::New();
  42   this->Lines = vtkCellArray::New();
  43   this->LoopPoints = vtkPoints::New();
  44
  45   vtkPolyData *pd = vtkPolyData::New();
  46   pd->SetPoints( Points );
  47   pd->SetLines( Lines );
  48
  49   vtkPolyDataMapper2D *bboxMapper = vtkPolyDataMapper2D::New();
  50   bboxMapper->SetInput( pd );
  51
  52   this->BboxActor = vtkActor2D::New();
  53   this->BboxActor->SetMapper( bboxMapper );
  54   this->BboxActor->GetProperty()->SetColor(1, 0, 0);
  55   this->BboxActor->VisibilityOff();
  56
  57   //thanks
  58   pd->Delete();
  59   bboxMapper->Delete();
  60 }
  61
  62 //----------------------------------------------------------------------------
  63 vtkInteractorStyleCutter::~vtkInteractorStyleCutter()
  64 {
  65   this->Points->Delete();
  66   this->BboxActor->Delete();
  67   this->Lines->Delete();
  68   this->LoopPoints->Delete();
  69 }
  70
  71 //----------------------------------------------------------------------------
  72 void vtkInteractorStyleCutter::OnMouseMove()
  73 {
  74   if (!this->Interactor || !this->Moving)
  75     {
  76     return;
  77     }
  78
  79   this->CurrentPosition[0] = this->Interactor->GetEventPosition()[0];
  80   this->CurrentPosition[1] = this->Interactor->GetEventPosition()[1];
  81
  82   //mouse move event
  83   this->Points->SetPoint(this->PointID, this->CurrentPosition[0],
  84     this->CurrentPosition[1], 0);
  85
  86   this->Interactor->Render();
  87 }
  88
  89 //----------------------------------------------------------------------------
  90 void vtkInteractorStyleCutter::OnLeftButtonDown()
  91 {
  92   if (!this->Interactor)
  93     {
  94     return;
  95     }
  96
  97   this->CurrentPosition[0] = this->Interactor->GetEventPosition()[0];
  98   this->CurrentPosition[1] = this->Interactor->GetEventPosition()[1];
  99
 100   if(!this->Moving)
 101     {
 102     this->Initialize();
 103
 104     //Call this before accessing CurrentRenderer
 105     this->FindPokedRenderer(this->CurrentPosition[0], this->CurrentPosition[1]);
 106     this->CurrentRenderer->AddProp( BboxActor );
 107     }
 108
 109   this->Moving = 1;
 110
 111   this->Points->SetPoint(this->PointID, this->CurrentPosition[0],
 112     this->CurrentPosition[1], 0);
 113   this->PointID = this->Points->InsertNextPoint( this->CurrentPosition[0],
 114     this->CurrentPosition[1], 0);
 115
 116   this->Lines->InsertCellPoint( this->PointID );
 117   this->Lines->UpdateCellCount( this->PointID + 1 );
 118   this->BboxActor->VisibilityOn();
 119
 120   this->Interactor->Render();
 121 }
 122
 123 //----------------------------------------------------------------------------
 124 void vtkInteractorStyleCutter::OnRightButtonDown()
 125 {
 126   if (!this->Interactor || !this->Moving)
 127     {
 128     return;
 129     }
 130
 131   double xyz[3];
 132   this->Points->GetPoint( 0, xyz );
 133   this->Points->SetPoint(this->PointID, xyz);
 134
 135   //Save current state
 136   this->EndLoop();
 137
 138   this->Interactor->Render();
 139   this->Moving = 0;
 140 }
 141
 142 //----------------------------------------------------------------------------
 143 void vtkInteractorStyleCutter::Initialize()
 144 {
 145   this->Points->Reset();
 146   this->Lines->Reset();
 147
 148   this->PointID = this->Points->InsertNextPoint( 0, 0, 0);
 149   this->Lines->InsertNextCell( 1 );
 150   this->Lines->InsertCellPoint( 0 );
 151 }
 152 //----------------------------------------------------------------------------
 153 void vtkInteractorStyleCutter::EndLoop()
 154 {
 155   double pi[3],fpi[4];
 156   int numPts = this->Points->GetNumberOfPoints()-1;
 157   this->LoopPoints->SetNumberOfPoints( numPts );
 158   vtkCamera *camera = this->CurrentRenderer->GetActiveCamera();
 159   int state = camera->GetParallelProjection ();
 160   camera->ParallelProjectionOn();
 161
 162   for (int i=0; i < numPts; i++)
 163   {
 164     this->Points->GetPoint(i, pi);
 165     this->CurrentRenderer->SetDisplayPoint(pi[0], pi[1], 0);
 166     this->CurrentRenderer->DisplayToWorld();
 167
 168     this->CurrentRenderer->GetWorldPoint( fpi );
 169     if ( fpi[3] )
 170     {
 171       fpi[0] /= fpi[3];
 172       fpi[1] /= fpi[3];
 173       fpi[2] /= fpi[3];
 174     }
 175     this->LoopPoints->SetPoint( i, fpi[0], fpi[1], fpi[2] );
 176   }
 177
 178   //Set direction of extrusion, should save this state before camera moves
 179   camera->GetDirectionOfProjection( this->Direction );
 180   //camera->SetParallelProjection( state );
 181 }
 182 //----------------------------------------------------------------------------
 183 //Just a quick hack:
 184 void vtkInteractorStyleCutter::VisibilityOff()
 185 {
 186   this->BboxActor->VisibilityOff();
 187 }
 188 //----------------------------------------------------------------------------
 189 void vtkInteractorStyleCutter::PrintSelf(ostream& os, vtkIndent indent)
 190 {
 191   this->Superclass::PrintSelf(os, indent);
 192 }