vtkLabeledTreeMapDataMapper.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkLabeledTreeMapDataMapper.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 vtkLabeledTreeMapDataMapper_h
#define vtkLabeledTreeMapDataMapper_h
 
#include "vtkLabeledDataMapper.h"
#include "vtkRenderingLabelModule.h" // For export macro
 
class vtkTree;
class vtkPoints;
class vtkCoordinate;
class vtkFloatArray;
class vtkStringArray;
class vtkIdList;
 
class VTKRENDERINGLABEL_EXPORT vtkLabeledTreeMapDataMapper : public vtkLabeledDataMapper
{
public:
  static vtkLabeledTreeMapDataMapper* New();
  vtkTypeMacro(vtkLabeledTreeMapDataMapper, vtkLabeledDataMapper);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
 
  void RenderOpaqueGeometry(vtkViewport* viewport, vtkActor2D* actor) override;
  void RenderOverlay(vtkViewport* viewport, vtkActor2D* actor) override;
 
  virtual vtkTree* GetInputTree();
 
  virtual void SetRectanglesArrayName(const char* name);
 
 
  vtkGetMacro(ClipTextMode, int);
  vtkSetMacro(ClipTextMode, int);
 
 
  vtkGetMacro(ChildMotion, int);
  vtkSetMacro(ChildMotion, int);
 
 
  vtkGetMacro(DynamicLevel, int);
  vtkSetMacro(DynamicLevel, int);
 
  void ReleaseGraphicsResources(vtkWindow*) override;
 
 
  void SetFontSizeRange(int maxSize, int minSize, int delta = 4);
  void GetFontSizeRange(int range[3]);
 
 
  void SetLevelRange(int startLevel, int endLevel);
  void GetLevelRange(int range[2]);
 
protected:
  vtkLabeledTreeMapDataMapper();
  ~vtkLabeledTreeMapDataMapper() override;
  void LabelTree(vtkTree* tree, vtkFloatArray* boxInfo, vtkDataArray* numericData,
    vtkStringArray* stringData, int activeComp, int numComps);
  void GetVertexLabel(vtkIdType vertex, vtkDataArray* numericData, vtkStringArray* stringData,
    int activeComp, int numComps, char* string, size_t stringSize);
  void UpdateFontSizes();
  int UpdateWindowInfo(vtkViewport* viewport);
  int GetStringSize(char* string, int level);
  // Returns 1 if the transformed box is off screen
  int ConvertToDC(float* origBoxInfo, float* newBoxInfo);
  // Returns 1 if the label will not fit in box - 2 if the text could
  // not be placed due to other labels
  int AnalyseLabel(
    char* string, int level, float* blimitsDC, float* textPosWC, vtkTextProperty** tprop);
  int ApplyMasks(int level, float flimits[4], float blimits[4]);
  vtkViewport* CurrentViewPort;
  int* FontHeights;
  int** FontWidths;
  int MaxFontLevel;
  int* ChildrenCount;
  int MaxTreeLevels;
  double BoxTrans[2][2];
  double WindowLimits[2][2];
 
  float (*LabelMasks)[4];
 
  vtkIdList* VertexList;
  vtkPoints* TextPoints;
  vtkCoordinate* VCoord;
  int ClipTextMode;
  int ChildMotion;
  int StartLevel;
  int EndLevel;
  int DynamicLevel;
  vtkTextProperty* VerticalLabelProperty;
  vtkTextProperty** HLabelProperties;
 
private:
  vtkLabeledTreeMapDataMapper(const vtkLabeledTreeMapDataMapper&) = delete;
  void operator=(const vtkLabeledTreeMapDataMapper&) = delete;
};
 
#endif