vtkOrientedGlyphContourRepresentation.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkOrientedGlyphContourRepresentation.h
 
  Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
  All rights reserved.
  See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
 
     This software is distributed WITHOUT ANY WARRANTY; without even
     the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
     PURPOSE.  See the above copyright notice for more information.
 
=========================================================================*/
#ifndef vtkOrientedGlyphContourRepresentation_h
#define vtkOrientedGlyphContourRepresentation_h
 
#include "vtkContourRepresentation.h"
#include "vtkInteractionWidgetsModule.h" // For export macro
 
class vtkProperty;
class vtkActor;
class vtkPolyDataMapper;
class vtkPolyData;
class vtkGlyph3D;
class vtkPoints;
 
class VTKINTERACTIONWIDGETS_EXPORT vtkOrientedGlyphContourRepresentation
  : public vtkContourRepresentation
{
public:
  static vtkOrientedGlyphContourRepresentation* New();
 
 
  vtkTypeMacro(vtkOrientedGlyphContourRepresentation, vtkContourRepresentation);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  void SetCursorShape(vtkPolyData* cursorShape);
  vtkPolyData* GetCursorShape();
 
 
  void SetActiveCursorShape(vtkPolyData* activeShape);
  vtkPolyData* GetActiveCursorShape();
 
 
  vtkGetObjectMacro(Property, vtkProperty);
 
 
  vtkGetObjectMacro(ActiveProperty, vtkProperty);
 
 
  vtkGetObjectMacro(LinesProperty, vtkProperty);
 
 
  void SetRenderer(vtkRenderer* ren) override;
  void BuildRepresentation() override;
  void StartWidgetInteraction(double eventPos[2]) override;
  void WidgetInteraction(double eventPos[2]) override;
  int ComputeInteractionState(int X, int Y, int modified = 0) override;
 
 
  void GetActors(vtkPropCollection*) override;
  void ReleaseGraphicsResources(vtkWindow*) override;
  int RenderOverlay(vtkViewport* viewport) override;
  int RenderOpaqueGeometry(vtkViewport* viewport) override;
  int RenderTranslucentPolygonalGeometry(vtkViewport* viewport) override;
  vtkTypeBool HasTranslucentPolygonalGeometry() override;
 
  vtkPolyData* GetContourRepresentationAsPolyData() override;
 
 
  vtkSetMacro(AlwaysOnTop, vtkTypeBool);
  vtkGetMacro(AlwaysOnTop, vtkTypeBool);
  vtkBooleanMacro(AlwaysOnTop, vtkTypeBool);
 
  void SetLineColor(double r, double g, double b);
 
  void SetShowSelectedNodes(vtkTypeBool) override;
 
  double* GetBounds() override;
 
protected:
  vtkOrientedGlyphContourRepresentation();
  ~vtkOrientedGlyphContourRepresentation() override;
 
  // Render the cursor
  vtkActor* Actor;
  vtkPolyDataMapper* Mapper;
  vtkGlyph3D* Glypher;
  vtkActor* ActiveActor;
  vtkPolyDataMapper* ActiveMapper;
  vtkGlyph3D* ActiveGlypher;
  vtkPolyData* CursorShape;
  vtkPolyData* ActiveCursorShape;
  vtkPolyData* FocalData;
  vtkPoints* FocalPoint;
  vtkPolyData* ActiveFocalData;
  vtkPoints* ActiveFocalPoint;
 
  vtkPolyData* SelectedNodesData;
  vtkPoints* SelectedNodesPoints;
  vtkActor* SelectedNodesActor;
  vtkPolyDataMapper* SelectedNodesMapper;
  vtkGlyph3D* SelectedNodesGlypher;
  vtkPolyData* SelectedNodesCursorShape;
  void CreateSelectedNodesRepresentation();
 
  vtkPolyData* Lines;
  vtkPolyDataMapper* LinesMapper;
  vtkActor* LinesActor;
 
  // Support picking
  double LastPickPosition[3];
  double LastEventPosition[2];
 
  // Methods to manipulate the cursor
  void Translate(double eventPos[2]);
  void Scale(double eventPos[2]);
  void ShiftContour(double eventPos[2]);
  void ScaleContour(double eventPos[2]);
 
  void ComputeCentroid(double* ioCentroid);
 
  // Properties used to control the appearance of selected objects and
  // the manipulator in general.
  vtkProperty* Property;
  vtkProperty* ActiveProperty;
  vtkProperty* LinesProperty;
  void CreateDefaultProperties();
 
  // Distance between where the mouse event happens and where the
  // widget is focused - maintain this distance during interaction.
  double InteractionOffset[2];
 
  vtkTypeBool AlwaysOnTop;
 
  void BuildLines() override;
 
private:
  vtkOrientedGlyphContourRepresentation(const vtkOrientedGlyphContourRepresentation&) = delete;
  void operator=(const vtkOrientedGlyphContourRepresentation&) = delete;
};
 
#endif