SoView2DRectangle.h

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/*************************************************************************************
**
** Copyright 2007, 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 "SoView2DInteractionExtension.h"
#include "SoView2DLabel.h"
 
#include <Inventor/fields/SoSFVec3f.h>
#include <Inventor/fields/SoSFInt32.h>
 
class SOVIEW2D_API SoView2DRectangle : public SoView2DInteractionExtension
{
  SO_NODE_HEADER(SoView2DRectangle);
 
public:
 
 
  SoSFVec3f startWorldPos;
  SoSFVec3f endWorldPos;
 
  SoSFFloat blendInside;
  SoSFFloat blendOnto;
  SoSFFloat blendOutside;
  SoSFFloat lineBlendInside;
  SoSFFloat lineBlendOnto;
  SoSFFloat lineBlendOutside;
 
  SoSFBool resetToImage;
 
  SoSFBool selectOutside;
 
  SoSFBool allowDrag;
 
  SoSFBool  cooperative;
 
  SoSFFloat shadeExterior;
  SoSFBool shadeAllExterior;
 
  SoSFEnum lineStyle;
 
  SoSFBool isUnderMouse;
 
  SoSFBool   drawLabel;
  SoSFString labelText;
 
  SoSFEnum  labelVerticalBoxPosition;
  SoSFEnum  labelHorizontalBoxPosition;
  SoSFEnum  labelVerticalPosition;
  SoSFFloat labelVerticalOffset;
  SoSFEnum  labelHorizontalPosition;
  SoSFFloat labelHorizontalOffset;
 
  SoSFColor labelColor;
  SoSFBool labelShadow;
  SoSFInt32 labelFontSize;
 
 
  static void   initClass();
 
  SoView2DRectangle();
 
  void draw(View2DSliceList *dsl, View2DSlice *dslice, int slice) override;
 
  void drawLabelText(float px, float py, float qx, float qy);
 
  bool   evalEvent(SoView2D* view2d, View2DSliceList* slicelist,
    View2DEvent* ec, View2DEventPhase phase) override;
 
  bool ignoreEvent(View2DEvent* ec) override;
 
protected:
  enum DragMode {DragNothing, DragAnyPoint, DragRect, DragCreateRect};
 
  DragMode performHitTest(int dx1, int dy1, const SbVec3f& voxelPos, View2DSliceList* slicelist);
 
  void performDrag(const SbVec3f& voxelPos, bool setStart, View2DSliceList* slicelist);
 
  bool isSensitiveAt(const SoPointerPosition& pos) override;
  void startPressAt(const SoPointerPosition& pos) override;
  void dragMoveTo(const SoPointerPosition& pos) override;
  SoPointingAction* endPress(int clickCount) override;
  void pointerPosition(SoState*, const SoPointerPosition& pos) override;
  void pointerLeftWindow(SoState*) override;
 
  DragMode _dragMode;
 
  bool _xhigher;
  bool _yhigher;
 
  bool _dragx;
  bool _dragy;
 
  bool isSliceInMiddleOfRectangleExcludingTopAndBottom( int slice, float vz1, float vz2 ) const;
  bool isSliceIntersectingRectangle( int slice, float vz1, float vz2 ) const;
 
  SbVec3f _lastWorldPos;
 
  bool  _draggingInCooperativeMode;
};