vtkChart.h

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// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
// SPDX-License-Identifier: BSD-3-Clause
 
#ifndef vtkChart_h
#define vtkChart_h
 
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkContextItem.h"
#include "vtkContextScene.h" // For SelectionModifier
#include "vtkRect.h"         // For vtkRectf
#include "vtkSmartPointer.h" // For SP ivars
#include "vtkStdString.h"    // For vtkStdString ivars
 
VTK_ABI_NAMESPACE_BEGIN
class vtkTransform2D;
class vtkContextScene;
class vtkPlot;
class vtkAxis;
class vtkBrush;
class vtkTextProperty;
class vtkChartLegend;
 
class vtkInteractorStyle;
class vtkAnnotationLink;
 
class VTKCHARTSCORE_EXPORT vtkChart : public vtkContextItem
{
public:
  vtkTypeMacro(vtkChart, vtkContextItem);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  enum
  {
    LINE,
    POINTS,
    BAR,
    STACKED,
    BAG,
    FUNCTIONALBAG,
    AREA
  };
 
  enum
  {
    PAN = 0,
    ZOOM,
    ZOOM_AXIS,
    SELECT,
    SELECT_RECTANGLE = SELECT,
    SELECT_POLYGON,
    CLICK_AND_DRAG,
    NOTIFY,
    ACTION_TYPES_COUNT
  };
 
  enum EventIds
  {
    UpdateRange = 1002
  };
 
  bool Paint(vtkContext2D* painter) override = 0;
 
  virtual vtkPlot* AddPlot(int type);
 
  virtual vtkIdType AddPlot(vtkPlot* plot);
 
  virtual bool RemovePlot(vtkIdType index);
 
  virtual bool RemovePlotInstance(vtkPlot* plot);
 
  virtual void ClearPlots();
 
  virtual vtkPlot* GetPlot(vtkIdType index);
 
  virtual vtkIdType GetNumberOfPlots();
 
  virtual vtkAxis* GetAxis(int axisIndex);
 
  virtual void SetAxis(int axisIndex, vtkAxis*);
 
  virtual vtkIdType GetNumberOfAxes();
 
  virtual void RecalculateBounds();
 
  enum
  {
    SELECTION_ROWS,
    SELECTION_PLOTS,
    SELECTION_COLUMNS
  };
 
 
  virtual void SetSelectionMethod(int method);
  virtual int GetSelectionMethod();
 
  virtual void SetAnnotationLink(vtkAnnotationLink* link);
 
 
  vtkGetObjectMacro(AnnotationLink, vtkAnnotationLink);
 
 
  vtkSetVector2Macro(Geometry, int);
  vtkGetVector2Macro(Geometry, int);
 
 
  vtkSetVector2Macro(Point1, int);
  vtkGetVector2Macro(Point1, int);
 
 
  vtkSetVector2Macro(Point2, int);
  vtkGetVector2Macro(Point2, int);
 
 
  virtual void SetShowLegend(bool visible);
  virtual bool GetShowLegend();
 
  virtual vtkChartLegend* GetLegend();
 
 
  virtual void SetTitle(const vtkStdString& title);
  virtual vtkStdString GetTitle();
 
 
  vtkGetObjectMacro(TitleProperties, vtkTextProperty);
 
 
  void SetBottomBorder(int border);
  void SetTopBorder(int border);
  void SetLeftBorder(int border);
  void SetRightBorder(int border);
 
  void SetBorders(int left, int bottom, int right, int top);
 
  virtual void SetSize(const vtkRectf& rect);
 
  vtkRectf GetSize();
 
  enum
  {
    FILL_SCENE,  // Attempt to fill the entire scene.
    FILL_RECT,   // Attempt to supply the supplied vtkRectf in Size.
    AXES_TO_RECT // Put the corners of the axes on the vtkRectf in Size.
  };
 
 
  vtkSetMacro(LayoutStrategy, int);
  vtkGetMacro(LayoutStrategy, int);
 
 
  virtual void SetAutoSize(bool isAutoSized)
  {
    this->LayoutStrategy = isAutoSized ? vtkChart::FILL_SCENE : vtkChart::FILL_RECT;
  }
  virtual bool GetAutoSize() { return this->LayoutStrategy == vtkChart::FILL_SCENE ? true : false; }
 
 
  vtkSetMacro(RenderEmpty, bool);
  vtkGetMacro(RenderEmpty, bool);
 
  virtual void SetActionToButton(int action, int button);
 
  virtual int GetActionToButton(int action);
 
  virtual void SetClickActionToButton(int action, int button);
 
  virtual int GetClickActionToButton(int action);
 
 
  void SetBackgroundBrush(vtkBrush* brush);
  vtkBrush* GetBackgroundBrush();
 
 
  vtkSetClampMacro(
    SelectionMode, int, vtkContextScene::SELECTION_DEFAULT, vtkContextScene::SELECTION_TOGGLE);
  vtkGetMacro(SelectionMode, int);
 
protected:
  vtkChart();
  ~vtkChart() override;
 
  bool CalculatePlotTransform(vtkAxis* x, vtkAxis* y, vtkTransform2D* transform);
 
  bool CalculateUnscaledPlotTransform(vtkAxis* x, vtkAxis* y, vtkTransform2D* transform);
 
  void AttachAxisRangeListener(vtkAxis*);
 
  void AxisRangeForwarderCallback(vtkObject*, unsigned long, void*);
 
  vtkAnnotationLink* AnnotationLink;
 
  int Geometry[2];
 
  int Point1[2];
 
  int Point2[2];
 
  int Borders[4];
 
  bool ShowLegend;
 
  vtkStdString Title;
 
  vtkTextProperty* TitleProperties;
 
  vtkRectf Size;
  // The layout strategy to employ when fitting the chart into the space.
  int LayoutStrategy;
  bool RenderEmpty;
 
  vtkSmartPointer<vtkBrush> BackgroundBrush;
 
  // The mode when the chart is doing selection.
  int SelectionMode;
 
  // How plot selections are handled, SELECTION_ROWS (default) or
  // SELECTION_PLOTS - based on the plot that created the selection.
  int SelectionMethod;
 
 
  class MouseActions
  {
  public:
    MouseActions();
    enum
    {
      MaxAction = 6
    };
    short& Pan() { return Data[0]; }
    short& Zoom() { return Data[1]; }
    short& ZoomAxis() { return Data[2]; }
    short& Select() { return Data[3]; }
    short& SelectPolygon() { return Data[4]; }
    short& ClickAndDrag() { return Data[5]; }
    short& operator[](int index) { return Data[index]; }
    short Data[MaxAction];
  };
  class MouseClickActions
  {
  public:
    MouseClickActions();
    short& Notify() { return Data[0]; }
    short& Select() { return Data[1]; }
    short& operator[](int index) { return Data[index]; }
    short Data[2];
  };
 
  MouseActions Actions;
  MouseClickActions ActionsClick;
 
private:
  vtkChart(const vtkChart&) = delete;
  void operator=(const vtkChart&) = delete;
};
 
VTK_ABI_NAMESPACE_END
#endif // vtkChart_h