vtkChartXY.h

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/*=========================================================================
 
  Program:   Visualization Toolkit
  Module:    vtkChartXY.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 vtkChartXY_h
#define vtkChartXY_h
 
#include "vtkChart.h"
#include "vtkChartsCoreModule.h" // For export macro
#include "vtkContextPolygon.h"   // For vtkContextPolygon
#include "vtkSmartPointer.h"     // For SP ivars
#include "vtkVector.h"           // For vtkVector2f in struct
 
class vtkAxis;
class vtkChartLegend;
class vtkIdTypeArray;
class vtkPlot;
class vtkPlotGrid;
class vtkTooltipItem;
 
class vtkChartXYPrivate; // Private class to keep my STL vector in...
 
class VTKCHARTSCORE_EXPORT vtkChartXY : public vtkChart
{
public:
  vtkTypeMacro(vtkChartXY, vtkChart);
  void PrintSelf(ostream& os, vtkIndent indent) override;
 
  static vtkChartXY* New();
 
  void Update() override;
 
  bool Paint(vtkContext2D* painter) override;
 
  vtkPlot* AddPlot(int type) override;
 
  vtkIdType AddPlot(vtkPlot* plot) override;
 
  bool RemovePlot(vtkIdType index) override;
 
  void ClearPlots() override;
 
  vtkPlot* GetPlot(vtkIdType index) override;
 
  virtual vtkIdType GetPlotIndex(vtkPlot*);
 
  vtkIdType RaisePlot(vtkPlot* plot);
 
  virtual vtkIdType StackPlotAbove(vtkPlot* plot, vtkPlot* under);
 
  vtkIdType LowerPlot(vtkPlot* plot);
 
  virtual vtkIdType StackPlotUnder(vtkPlot* plot, vtkPlot* above);
 
  vtkIdType GetNumberOfPlots() override;
 
  int GetPlotCorner(vtkPlot* plot);
 
  void SetPlotCorner(vtkPlot* plot, int corner);
 
  vtkAxis* GetAxis(int axisIndex) override;
 
  virtual void SetAxis(int axisIndex, vtkAxis*) override;
 
  void SetShowLegend(bool visible) override;
 
  vtkChartLegend* GetLegend() override;
 
  virtual void SetTooltip(vtkTooltipItem* tooltip);
 
  virtual vtkTooltipItem* GetTooltip();
 
  vtkIdType GetNumberOfAxes() override;
 
  void RecalculateBounds() override;
 
  void SetSelectionMethod(int method) override;
 
  void RemovePlotSelections();
 
 
  vtkSetMacro(DrawAxesAtOrigin, bool);
  vtkGetMacro(DrawAxesAtOrigin, bool);
  vtkBooleanMacro(DrawAxesAtOrigin, bool);
 
 
  vtkSetMacro(AutoAxes, bool);
  vtkGetMacro(AutoAxes, bool);
  vtkBooleanMacro(AutoAxes, bool);
 
 
  vtkSetMacro(HiddenAxisBorder, int);
  vtkGetMacro(HiddenAxisBorder, int);
 
 
  vtkSetMacro(ForceAxesToBounds, bool);
  vtkGetMacro(ForceAxesToBounds, bool);
  vtkBooleanMacro(ForceAxesToBounds, bool);
 
 
  vtkSetMacro(BarWidthFraction, float);
  vtkGetMacro(BarWidthFraction, float);
 
 
  vtkSetMacro(ZoomWithMouseWheel, bool);
  vtkGetMacro(ZoomWithMouseWheel, bool);
  vtkBooleanMacro(ZoomWithMouseWheel, bool);
 
 
  vtkSetMacro(AdjustLowerBoundForLogPlot, bool);
  vtkGetMacro(AdjustLowerBoundForLogPlot, bool);
  vtkBooleanMacro(AdjustLowerBoundForLogPlot, bool);
 
 
  vtkSetMacro(DragPointAlongX, bool);
  vtkGetMacro(DragPointAlongX, bool);
  vtkBooleanMacro(DragPointAlongX, bool);
 
 
  vtkSetMacro(DragPointAlongY, bool);
  vtkGetMacro(DragPointAlongY, bool);
  vtkBooleanMacro(DragPointAlongY, bool);
 
  virtual void SetTooltipInfo(const vtkContextMouseEvent&, const vtkVector2d&, vtkIdType, vtkPlot*,
    vtkIdType segmentIndex = -1);
 
  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;
 
  bool MouseWheelEvent(const vtkContextMouseEvent& mouse, int delta) override;
 
  bool KeyPressEvent(const vtkContextKeyEvent& key) override;
 
  static void MakeSelection(vtkAnnotationLink* link, vtkIdTypeArray* selectionIds, vtkPlot* plot);
 
  static void MinusSelection(vtkIdTypeArray* selection, vtkIdTypeArray* oldSelection);
 
  static void AddSelection(vtkIdTypeArray* selection, vtkIdTypeArray* oldSelection);
 
  static void ToggleSelection(vtkIdTypeArray* selection, vtkIdTypeArray* oldSelection);
 
  static void BuildSelection(vtkAnnotationLink* link, int selectionMode,
    vtkIdTypeArray* plotSelection, vtkIdTypeArray* oldSelection, vtkPlot* plot);
 
  static int GetMouseSelectionMode(const vtkContextMouseEvent& mouse, int selectionMode);
 
protected:
  vtkChartXY();
  ~vtkChartXY() override;
 
  void RecalculatePlotTransforms();
 
  void RecalculatePlotBounds();
 
  virtual bool UpdateLayout(vtkContext2D* painter);
 
  virtual int GetLegendBorder(vtkContext2D* painter, int axisPosition);
 
  virtual void SetLegendPosition(const vtkRectf& rect);
 
  vtkSmartPointer<vtkChartLegend> Legend;
 
  vtkSmartPointer<vtkTooltipItem> Tooltip;
 
  bool PlotTransformValid;
 
  vtkRectf MouseBox;
 
  bool DrawBox;
 
  vtkContextPolygon SelectionPolygon;
 
  bool DrawSelectionPolygon;
 
  bool DrawNearestPoint;
 
  bool DrawAxesAtOrigin;
 
  bool AutoAxes;
 
  int HiddenAxisBorder;
 
  float BarWidthFraction;
 
  bool ForceAxesToBounds;
 
  bool ZoomWithMouseWheel;
 
  bool AdjustLowerBoundForLogPlot;
 
  bool DragPointAlongX;
  bool DragPointAlongY;
 
private:
  vtkChartXY(const vtkChartXY&) = delete;
  void operator=(const vtkChartXY&) = delete;
 
  vtkChartXYPrivate* ChartPrivate; // Private class where I hide my STL containers
 
  bool DragPoint;
 
  void CalculateBarPlots();
 
  bool LocatePointInPlots(const vtkContextMouseEvent& mouse, int invokeEvent = -1);
 
  int LocatePointInPlot(const vtkVector2f& position, const vtkVector2f& tolerance,
    vtkVector2f& plotPos, vtkPlot* plot, vtkIdType& segmentIndex);
 
  bool RemovePlotFromCorners(vtkPlot* plot);
 
  void ZoomInAxes(vtkAxis* x, vtkAxis* y, float* orign, float* max);
 
  void ReleasePlotSelections();
 
  void TransformBoxOrPolygon(bool polygonMode, vtkTransform2D* transform,
    const vtkVector2f& mousePosition, vtkVector2f& min, vtkVector2f& max,
    vtkContextPolygon& polygon);
};
 
 
struct vtkChartPlotData
{
  vtkStdString SeriesName;
  vtkVector2f Position;
  vtkVector2i ScreenPosition;
  int Index;
};
 
#endif // vtkChartXY_h