VTK  9.3.0
vtkChartPie.h
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1// SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2// SPDX-License-Identifier: BSD-3-Clause
3
24#ifndef vtkChartPie_h
25#define vtkChartPie_h
26
27#include "vtkChart.h"
28#include "vtkChartsCoreModule.h" // For export macro
29
30VTK_ABI_NAMESPACE_BEGIN
31class vtkChartLegend;
32class vtkTooltipItem;
33class vtkChartPiePrivate;
34class vtkPlotPie;
35
36class VTKCHARTSCORE_EXPORT vtkChartPie : public vtkChart
37{
38public:
39 vtkTypeMacro(vtkChartPie, vtkChart);
40 void PrintSelf(ostream& os, vtkIndent indent) override;
41
45 static vtkChartPie* New();
46
52 void Update() override;
53
57 bool Paint(vtkContext2D* painter) override;
58
62 vtkPlot* AddPlot(int type) override;
63
68 virtual void SetPlot(vtkPlotPie* plot);
69
73 vtkPlot* GetPlot(vtkIdType index) override;
74
79
83 void SetShowLegend(bool visible) override;
84
90
94 void SetScene(vtkContextScene* scene) override;
95
99 bool Hit(const vtkContextMouseEvent& mouse) override;
100
104 bool MouseEnterEvent(const vtkContextMouseEvent& mouse) override;
105
109 bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
110
114 bool MouseLeaveEvent(const vtkContextMouseEvent& mouse) override;
115
119 bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
120
125
129 bool MouseWheelEvent(const vtkContextMouseEvent& mouse, int delta) override;
130
131protected:
133 ~vtkChartPie() override;
134
139
144
149
154
155private:
156 vtkChartPie(const vtkChartPie&) = delete;
157 void operator=(const vtkChartPie&) = delete;
158
162 bool LocatePointInPlots(const vtkContextMouseEvent& mouse);
163
167 vtkChartPiePrivate* Private;
168};
169
170VTK_ABI_NAMESPACE_END
171#endif // vtkChartPie_h
draw the chart legend
Factory class for drawing pie charts.
Definition vtkChartPie.h:37
static vtkChartPie * New()
Creates a 2D Chart object.
bool PlotTransformValid
Does the plot area transform need to be recalculated?
bool MouseLeaveEvent(const vtkContextMouseEvent &mouse) override
Mouse leave event.
vtkPlot * GetPlot(vtkIdType index) override
Get the plot at the specified index, returns null if the index is invalid.
bool Paint(vtkContext2D *painter) override
Paint event for the chart, called whenever the chart needs to be drawn.
void Update() override
Perform any updates to the item that may be necessary before rendering.
void SetShowLegend(bool visible) override
Set whether the chart should draw a legend.
void RecalculatePlotTransforms()
Recalculate the necessary transforms.
vtkPlot * AddPlot(int type) override
Add a plot to the chart.
bool MouseMoveEvent(const vtkContextMouseEvent &mouse) override
Mouse move event.
bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse) override
Mouse button down event.
bool MouseButtonReleaseEvent(const vtkContextMouseEvent &mouse) override
Mouse button release event.
bool Hit(const vtkContextMouseEvent &mouse) override
Return true if the supplied x, y coordinate is inside the item.
vtkIdType GetNumberOfPlots() override
Get the number of plots the chart contains.
~vtkChartPie() override
vtkChartLegend * Legend
The legend for the chart.
bool MouseEnterEvent(const vtkContextMouseEvent &mouse) override
Mouse enter event.
virtual void SetPlot(vtkPlotPie *plot)
Set plot to use for the chart.
void SetScene(vtkContextScene *scene) override
Set the vtkContextScene for the item, always set for an item in a scene.
vtkTooltipItem * Tooltip
The tooltip item for the chart - can be used to display extra information.
vtkChartLegend * GetLegend() override
Get the legend for the chart, if available.
bool MouseWheelEvent(const vtkContextMouseEvent &mouse, int delta) override
Mouse wheel event, positive delta indicates forward movement of the wheel.
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
Factory class for drawing 2D charts.
Definition vtkChart.h:50
Class for drawing 2D primitives to a graphical context.
data structure to represent mouse events.
Provides a 2D scene for vtkContextItem objects.
a simple class to control print indentation
Definition vtkIndent.h:38
Class for drawing a Pie diagram.
Definition vtkPlotPie.h:38
Abstract class for 2D plots.
Definition vtkPlot.h:53
takes care of drawing 2D axes
int vtkIdType
Definition vtkType.h:315