vtkGraphItem.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    TestDiagram.cxx
 
  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 vtkMultiLineItem_h
#define vtkMultiLineItem_h
 
#include "vtkViewsInfovisModule.h" // For export macro
#include "vtkContextItem.h"
 
#include "vtkVector.h" // For vector types in API
#include "vtkColor.h" // For color types in API
#include "vtkNew.h" // For vtkNew ivars
 
class vtkGraph;
class vtkImageData;
class vtkIncrementalForceLayout;
class vtkRenderWindowInteractor;
class vtkTooltipItem;
 
class VTKVIEWSINFOVIS_EXPORT vtkGraphItem : public vtkContextItem
{
public:
  static vtkGraphItem *New();
  vtkTypeMacro(vtkGraphItem, vtkContextItem);
  virtual void PrintSelf(ostream &os, vtkIndent indent);
 
 
  virtual void SetGraph(vtkGraph *graph);
  vtkGetObjectMacro(Graph, vtkGraph);
 
  virtual vtkIncrementalForceLayout *GetLayout();
 
 
  virtual void StartLayoutAnimation(vtkRenderWindowInteractor *interactor);
  virtual void StopLayoutAnimation();
 
  virtual void UpdateLayout();
 
protected:
  vtkGraphItem();
  ~vtkGraphItem();
 
  virtual bool Paint(vtkContext2D *painter);
 
  virtual void RebuildBuffers();
 
  virtual void PaintBuffers(vtkContext2D *painter);
 
  virtual bool IsDirty();
 
  virtual vtkIdType NumberOfVertices();
 
  virtual vtkIdType NumberOfEdges();
 
  virtual vtkIdType NumberOfEdgePoints(vtkIdType edge);
 
  virtual float EdgeWidth(vtkIdType edge, vtkIdType point);
 
  virtual vtkColor4ub EdgeColor(vtkIdType edge, vtkIdType point);
 
  virtual vtkVector2f EdgePosition(vtkIdType edge, vtkIdType point);
 
  virtual float VertexSize(vtkIdType vertex);
 
  virtual vtkColor4ub VertexColor(vtkIdType vertex);
 
  virtual int VertexMarker(vtkIdType vertex);
 
  virtual vtkVector2f VertexPosition(vtkIdType vertex);
 
  virtual vtkStdString VertexTooltip(vtkIdType vertex);
 
 
  static void ProcessEvents(vtkObject *caller, unsigned long event,
                            void *clientData, void *callerData);
 
  virtual vtkIdType HitVertex(const vtkVector2f &pos);
 
 
  virtual bool MouseMoveEvent(const vtkContextMouseEvent &event);
  virtual bool MouseLeaveEvent(const vtkContextMouseEvent &event);
  virtual bool MouseEnterEvent(const vtkContextMouseEvent &event);
  virtual bool MouseButtonPressEvent(const vtkContextMouseEvent &event);
  virtual bool MouseButtonReleaseEvent(const vtkContextMouseEvent &event);
  virtual bool MouseWheelEvent(const vtkContextMouseEvent &event, int delta);
 
  virtual bool Hit(const vtkContextMouseEvent &event);
 
  virtual void PlaceTooltip(vtkIdType v);
 
private:
  vtkGraphItem(const vtkGraphItem&); // Not implemented
  void operator=(const vtkGraphItem&); // Not implemented
 
  struct Internals;
  Internals *Internal;
 
  vtkGraph *Graph;
  unsigned long GraphBuildTime;
  vtkNew<vtkImageData> Sprite;
  vtkNew<vtkIncrementalForceLayout> Layout;
  vtkNew<vtkTooltipItem> Tooltip;
};
 
#endif