SoView2DShaderElement.h

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/*************************************************************************************
**
** Copyright 2015, MeVis Medical Solutions AG
**
** The user may use this file in accordance with the license agreement provided with
** the Software or, alternatively, in accordance with the terms contained in a
** written agreement between the user and MeVis Medical Solutions AG.
**
** For further information use the contact form at https://www.mevislab.de/contact
**
**************************************************************************************/
 
#pragma once
 
#include "SoView2DSystem.h"
 
#include <Inventor/elements/SoReplacedElement.h>
#include <Inventor/SbColor.h>
#include "View2DSlice.h"
#include "View2DTexture.h"
#include <vector>
 
#include "SoView2DShaderBuiltInFunctions.h"
 
class SoView2DShaderOperation;
class SoView2DShaderCustomInclude;
class SoView2DShaderDiagnosis;
 
class SOVIEW2D_API SoView2DShaderOverlayInfo
{
public:
  SoView2DShaderOverlayInfo();
 
  std::string _name;
  SbColor  _color;
  float    _alpha;
  View2DBlendMode _blendMode;
  View2DTexture* _texture;
 
  SbVec2f  _devicePos[3];
 
  bool _renderedByOverlayShader;
  bool _validContent;
  SoView2DShaderBuiltInFunctions::SetupOverlay _setup;
  SoView2DShaderBuiltInFunctions::CheckInsideOverlay _inside;
  SoView2DShaderBuiltInFunctions::FetchOverlay _fetch;
  SoView2DShaderBuiltInFunctions::ClassifyOverlay _classify;
  SoView2DShaderBuiltInFunctions::CompositeOverlay _composite;
};
 
class SOVIEW2D_API SoView2DShaderElement : public SoReplacedElement {
 
    SO_ELEMENT_HEADER(SoView2DShaderElement);
 
  public:
    void    init(SoState *state) override;
 
    void  pop(SoState *state, const SoElement *prevTopElement) override;
    void  push(SoState* aState) override;
 
    void  clearData();
 
    static void setDiagnosis(SoState *state, SoNode* node, SoView2DShaderDiagnosis *diagnosis);
 
    static SoView2DShaderDiagnosis* getDiagnosis(SoState *state);
 
    static void clear(SoState *state, SoNode* node);
 
    static void addOverlay(SoState *state, SoNode *node, SoView2DShaderOverlayInfo* overlay);
 
    static void addOperation(SoState *state, SoNode *node, SoView2DShaderOperation *operation);
    static void addInclude(SoState *state, SoNode *node, SoView2DShaderCustomInclude *include);
 
    static const std::vector<SoView2DShaderOverlayInfo*>& getOverlays(SoState *state);
 
    static const std::vector<SoView2DShaderOperation*>& getOperations(SoState *state);
 
    static const std::vector<SoView2DShaderCustomInclude*>& getIncludes(SoState *state);
 
    static const std::vector<size_t>& getNodeIds(SoState *state);
 
    static const SoView2DShaderElement * getInstance(SoState *state);
 
    SbBool matches(const SoElement *elt) const override;
 
    SoElement *copyMatchInfo() const override;
 
    static void initClass();
 
  protected:
    SoView2DShaderDiagnosis* _diagnosis;
    std::vector<SoView2DShaderOperation*>     _operations;
    std::vector<SoView2DShaderCustomInclude*> _includes;
    std::vector<SoView2DShaderOverlayInfo*>   _overlays;
    std::vector<size_t> _nodeIds;
};