vtkRenderView.h

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/*=========================================================================

  Program:   Visualization Toolkit
  Module:    vtkRenderView.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.

=========================================================================*/
/*-------------------------------------------------------------------------
  Copyright 2008 Sandia Corporation.
  Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
  the U.S. Government retains certain rights in this software.
-------------------------------------------------------------------------*/
#ifndef vtkRenderView_h
#define vtkRenderView_h

#include "vtkViewsInfovisModule.h" // For export macro
#include "vtkRenderViewBase.h"
#include "vtkSmartPointer.h" // For SP ivars

class vtkAbstractTransform;
class vtkActor2D;
class vtkAlgorithmOutput;
class vtkArrayCalculator;
class vtkBalloonRepresentation;
class vtkDynamic2DLabelMapper;
class vtkHardwareSelector;
class vtkHoverWidget;
class vtkInteractorObserver;
class vtkLabelPlacementMapper;
class vtkPolyDataMapper2D;
class vtkSelection;
class vtkTextProperty;
class vtkTexture;
class vtkTexturedActor2D;
class vtkTransformCoordinateSystems;

class VTKVIEWSINFOVIS_EXPORT vtkRenderView : public vtkRenderViewBase
{
public:
  static vtkRenderView* New();
  vtkTypeMacro(vtkRenderView, vtkRenderViewBase);
  void PrintSelf(ostream& os, vtkIndent indent) override;

  void SetInteractor(vtkRenderWindowInteractor *interactor) override;

  virtual void SetInteractorStyle(vtkInteractorObserver* style);

  virtual vtkInteractorObserver* GetInteractorStyle();

  void SetRenderWindow(vtkRenderWindow *win) override;

  enum
  {
    INTERACTION_MODE_2D,
    INTERACTION_MODE_3D,
    INTERACTION_MODE_UNKNOWN
  };

  void SetInteractionMode(int mode);
  vtkGetMacro(InteractionMode, int);

  virtual void SetInteractionModeTo2D()
    { this->SetInteractionMode(INTERACTION_MODE_2D); }
  virtual void SetInteractionModeTo3D()
    { this->SetInteractionMode(INTERACTION_MODE_3D); }

  void Render() override;

  void ApplyViewTheme(vtkViewTheme* theme) override;


  virtual void SetTransform(vtkAbstractTransform* transform);
  vtkGetObjectMacro(Transform, vtkAbstractTransform);


  virtual void SetDisplayHoverText(bool b);
  vtkGetMacro(DisplayHoverText, bool);
  vtkBooleanMacro(DisplayHoverText, bool);

  enum {
    SURFACE = 0,
    FRUSTUM = 1
  };


  vtkSetClampMacro(SelectionMode, int, 0, 1);
  vtkGetMacro(SelectionMode, int);
  void SetSelectionModeToSurface() { this->SetSelectionMode(SURFACE); }
  void SetSelectionModeToFrustum() { this->SetSelectionMode(FRUSTUM); }

  virtual void AddLabels(vtkAlgorithmOutput* conn);

  virtual void RemoveLabels(vtkAlgorithmOutput* conn);


  virtual void SetIconTexture(vtkTexture* texture);
  vtkGetObjectMacro(IconTexture, vtkTexture);


  vtkSetVector2Macro(IconSize, int);
  vtkGetVector2Macro(IconSize, int);


  vtkSetVector2Macro(DisplaySize, int);
  int* GetDisplaySize();
  void GetDisplaySize(int &dsx, int &dsy);

  enum
  {
    NO_OVERLAP,
    ALL
  };


  virtual void SetLabelPlacementMode(int mode);
  virtual int GetLabelPlacementMode();
  virtual void SetLabelPlacementModeToNoOverlap()
    { this->SetLabelPlacementMode(NO_OVERLAP); }
  virtual void SetLabelPlacementModeToAll()
    { this->SetLabelPlacementMode(ALL); }

  enum
  {
    FREETYPE,
    QT
  };


  virtual void SetLabelRenderMode(int mode);
  virtual int GetLabelRenderMode();
  virtual void SetLabelRenderModeToFreetype()
    { this->SetLabelRenderMode(FREETYPE); }
  virtual void SetLabelRenderModeToQt()
    { this->SetLabelRenderMode(QT); }


  void SetRenderOnMouseMove(bool b);
  vtkGetMacro(RenderOnMouseMove, bool);
  vtkBooleanMacro(RenderOnMouseMove, bool);

protected:
  vtkRenderView();
  ~vtkRenderView() override;

  void ProcessEvents(vtkObject* caller, unsigned long eventId,
    void* callData) override;

  virtual void GenerateSelection(
    void* callData, vtkSelection* selection);

  void PrepareForRendering() override;

  virtual void UpdateHoverText();

  virtual void UpdateHoverWidgetState();

  void UpdatePickRender();

  int SelectionMode;
  int LabelRenderMode;
  bool DisplayHoverText;
  bool Interacting;
  bool InHoverTextRender;
  bool InPickRender;
  bool PickRenderNeedsUpdate;

  vtkAbstractTransform* Transform;
  vtkTexture* IconTexture;
  int IconSize[2];
  int DisplaySize[2];

  int InteractionMode;
  bool RenderOnMouseMove;

  vtkSmartPointer<vtkRenderer>                 LabelRenderer;
  vtkSmartPointer<vtkBalloonRepresentation>    Balloon;
  vtkSmartPointer<vtkLabelPlacementMapper>     LabelPlacementMapper;
  vtkSmartPointer<vtkTexturedActor2D>          LabelActor;
  vtkSmartPointer<vtkHoverWidget>              HoverWidget;
  vtkSmartPointer<vtkHardwareSelector>         Selector;

private:
  vtkRenderView(const vtkRenderView&) = delete;
  void operator=(const vtkRenderView&) = delete;
};

#endif