SoCSOPointEditor.h

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/*************************************************************************************
**
** Copyright 2012, 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 <SoView2DCSOEditor/SoView2DCSOExtensibleEditor/SoCSOCreatorEditorExtension.h>
 
 
enum VoxelSnapMode { SNAP_OFF, SNAP_XY, SNAP_Z, SNAP_XYZ };
 
 
class SOCSO_EXPORT SoCSOPointEditor : public SoCSOCreatorEditorExtension
{
  SO_NODE_HEADER(SoCSOPointEditor);
 
public:
 
  SoCSOPointEditor();
 
  SoSFEnum drawingMode;
 
  SoSFBool restrictToImageBoundaries;
  SoSFTypedEnum<VoxelSnapMode> voxelSnapMode;
 
  void draw(const CSODrawCSOInfos& csoInfos, const CSODrawView2DInfos& view2DInfos, const CSODrawSliceInformation& drawSliceInfo, SoView2DCSOExtensibleEditor* editor) override;
 
  static void initClass();
 
  void cancel() override;
 
  bool isCreationAllowedAt(const SoPointerPosition& pos) const override;
  void createStartPressAt(const SoPointerPosition& pos) override;
  void createDragMoveTo(const SoPointerPosition& pos) override;
  bool createEndPress(int clickCount) override;
  void pointerPositionIfAllowedAt(const SoPointerPosition& ) override {}
 
  void selectAndMoveStartPressAt(const SoPointerPosition& pos) override;
  void selectAndMoveDragMoveTo(const SoPointerPosition& pos) override;
  SoPointingAction* selectAndMoveEndPress(int clickCount) override;
 
  enum PointDrawingMode
  {
    POINT_DRAWING_MODE_POINT     = 0, 
    POINT_DRAWING_MODE_CROSSHAIR = 1  
  };
 
protected:
 
private:
  // move given point into image boundaries, returns true if point was modified
  bool clipPointToImageBoundaries(ml::Vector3& point, const SoPointerPosition& pos);
  // same for whole CSO
  bool clipCSOToImageBoundaries(ml::CSO* cso, const SoPointerPosition& pos);
 
  void snapToVoxelGrid(SbVec3f& position, const SoPointerPosition& pos) const;
  void snapToVoxelGrid(ml::Vector3& position, const SoPointerPosition& pos) const;
 
  void renderCrosshair(const CSODrawCSOInfos& csoInfos, const CSODrawView2DInfos& view2DInfos, const CSODrawSliceInformation& drawSliceInfo);
  void renderCrosshair(int deviceXCenter, int deviceYCenter, const SbColor& color, float alpha) const;
  void glRenderOpaqueLine(int deviceXStart, int deviceYStart, int deviceXEnd, int deviceYEnd, const SbColor& color, float alpha) const;
  void glRenderFadingOutLine(int deviceXStart, int deviceYStart, int deviceXEnd, int deviceYEnd, const SbColor& color, float alpha) const;
 
  void glVertex2fWithMagicOffset(float x, float y) const;
 
  bool _wasCanceled;
 
  SbVec3f _startPosition;
  SbVec3f _startOffset;
};