vtkBlockItem.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkBlockItem.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.
 
=========================================================================*/
 
#ifndef vtkBlockItem_h
#define vtkBlockItem_h
 
#include "vtkContextItem.h"
#include "vtkNew.h"                      // For vtkNew
#include "vtkRenderingContext2DModule.h" // For export macro
#include "vtkStdString.h"                // For vtkStdString ivars
 
class vtkContext2D;
class vtkTextProperty;
class vtkBrush;
class vtkPen;
 
class VTKRENDERINGCONTEXT2D_EXPORT vtkBlockItem : public vtkContextItem
{
public:
  vtkTypeMacro(vtkBlockItem, vtkContextItem);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  static vtkBlockItem* New();
 
  bool Paint(vtkContext2D* painter) override;
 
  bool Hit(const vtkContextMouseEvent& mouse) override;
 
  bool MouseEnterEvent(const vtkContextMouseEvent& mouse) override;
 
  bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
 
  bool MouseLeaveEvent(const vtkContextMouseEvent& mouse) override;
 
  bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
 
  bool MouseButtonReleaseEvent(const vtkContextMouseEvent& mouse) override;
 
  virtual void SetLabel(const vtkStdString& label);
 
  virtual vtkStdString GetLabel();
 
 
  vtkSetVector4Macro(Dimensions, float);
 
 
  vtkGetVector4Macro(Dimensions, float);
 
 
  vtkSetMacro(AutoComputeDimensions, bool);
  vtkGetMacro(AutoComputeDimensions, bool);
  vtkBooleanMacro(AutoComputeDimensions, bool);
 
  enum
  {
    LEFT = 0,
    CENTER,
    RIGHT,
    TOP,
    BOTTOM,
    CUSTOM
  };
 
 
  vtkSetMacro(HorizontalAlignment, int);
  vtkGetMacro(HorizontalAlignment, int);
 
 
  vtkSetMacro(VerticalAlignment, int);
  vtkGetMacro(VerticalAlignment, int);
 
 
  vtkSetVector2Macro(Padding, int);
  vtkGetVector2Macro(Padding, int);
 
 
  vtkSetVector2Macro(Margins, int);
  vtkGetVector2Macro(Margins, int);
 
 
  vtkGetObjectMacro(Pen, vtkPen);
 
 
  vtkGetObjectMacro(Brush, vtkBrush);
 
 
  vtkGetObjectMacro(MouseOverBrush, vtkBrush);
 
 
  void SetLabelProperties(vtkTextProperty*);
  vtkGetObjectMacro(LabelProperties, vtkTextProperty);
 
  void SetScalarFunctor(double (*scalarFunction)(double, double));
 
protected:
  vtkBlockItem();
  ~vtkBlockItem() override;
 
  float Dimensions[4];
 
  vtkStdString Label;
 
  bool MouseOver;
 
  // Some function pointers to optionally do funky things...
  double (*scalarFunction)(double, double);
 
private:
  vtkBlockItem(const vtkBlockItem&) = delete;
  void operator=(const vtkBlockItem&) = delete;
 
  vtkTextProperty* LabelProperties;
  vtkNew<vtkTextProperty> CachedTextProp;
 
  vtkNew<vtkPen> Pen;
  vtkNew<vtkPen> CachedPen;
 
  vtkNew<vtkBrush> Brush;
  vtkNew<vtkBrush> MouseOverBrush;
  vtkNew<vtkBrush> CachedBrush;
 
  int HorizontalAlignment;
  int VerticalAlignment;
  bool AutoComputeDimensions;
  int Padding[2];
  int Margins[2];
};
 
#endif // vtkBlockItem_h