128 lines
3.5 KiB
C
128 lines
3.5 KiB
C
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/*=========================================================================
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Program: Visualization Toolkit
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Module: vtkPlotPie.h
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Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
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All rights reserved.
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See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
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This software is distributed WITHOUT ANY WARRANTY; without even
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the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE. See the above copyright notice for more information.
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=========================================================================*/
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/**
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* @class vtkPlotPie
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* @brief Class for drawing a Pie diagram.
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*
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*
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*/
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#ifndef vtkPlotPie_h
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#define vtkPlotPie_h
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#include "vtkChartsCoreModule.h" // For export macro
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#include "vtkPlot.h"
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#include "vtkSmartPointer.h" // To hold ColorSeries etc.
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class vtkContext2D;
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class vtkColorSeries;
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class vtkPoints2D;
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class vtkPlotPiePrivate;
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class VTKCHARTSCORE_EXPORT vtkPlotPie : public vtkPlot
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{
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public:
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vtkTypeMacro(vtkPlotPie, vtkPlot);
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void PrintSelf(ostream& os, vtkIndent indent) override;
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static vtkPlotPie* New();
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/**
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* Paint event for the item.
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*/
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bool Paint(vtkContext2D* painter) override;
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/**
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* Paint legend event for the XY plot, called whenever the legend needs the
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* plot items symbol/mark/line drawn. A rect is supplied with the lower left
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* corner of the rect (elements 0 and 1) and with width x height (elements 2
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* and 3). The plot can choose how to fill the space supplied.
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*/
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bool PaintLegend(vtkContext2D* painter, const vtkRectf& rect, int legendIndex) override;
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/**
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* Set the dimensions of the pie, arguments 1 and 2 are the x and y coordinate
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* of the bottom corner. Arguments 3 and 4 are the width and height.
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*/
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void SetDimensions(int arg1, int arg2, int arg3, int arg4);
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/**
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* Set the dimensions of the pie, elements 0 and 1 are the x and y coordinate
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* of the bottom corner. Elements 2 and 3 are the width and height.
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*/
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void SetDimensions(const int arg[4]);
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///@{
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/**
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* Get the dimensions of the pie, elements 0 and 1 are the x and y coordinate
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* of the bottom corner. Elements 2 and 3 are the width and height.
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*/
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vtkGetVector4Macro(Dimensions, int);
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///@}
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/**
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* Set the color series to use for the Pie.
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*/
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void SetColorSeries(vtkColorSeries* colorSeries);
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/**
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* Get the color series used.
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*/
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vtkColorSeries* GetColorSeries();
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/**
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* Function to query a plot for the nearest point to the specified coordinate.
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* Returns the index of the data series with which the point is associated or
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* -1.
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*/
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vtkIdType GetNearestPoint(const vtkVector2f& point, const vtkVector2f& tolerance,
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vtkVector2f* location, vtkIdType* segmentId) override;
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using vtkPlot::GetNearestPoint;
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/**
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* Update the internal cache. Returns true if cache was successfully updated. Default does
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* nothing.
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* This method is called by Update() when either the plot's data has changed or
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* CacheRequiresUpdate() returns true. It is not necessary to call this method explicitly.
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*/
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bool UpdateCache() override;
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protected:
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vtkPlotPie();
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~vtkPlotPie() override;
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int Dimensions[4];
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/**
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* The color series to use for the pie.
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*/
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vtkSmartPointer<vtkColorSeries> ColorSeries;
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/**
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* Store a well packed set of angles for the wedges of the pie.
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*/
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vtkPoints2D* Points;
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private:
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vtkPlotPie(const vtkPlotPie&) = delete;
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void operator=(const vtkPlotPie&) = delete;
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vtkPlotPiePrivate* Private;
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};
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#endif // vtkPlotPie_h
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