VTK  9.1.0
vtkPiecewisePointHandleItem.h
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1/*=========================================================================
2
3 Program: Visualization Toolkit
4 Module: vtkPiecewisePointHandleItem.h
5
6 Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
7 All rights reserved.
8 See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
9
10 This software is distributed WITHOUT ANY WARRANTY; without even
11 the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
12 PURPOSE. See the above copyright notice for more information.
13
14=========================================================================*/
15
27#ifndef vtkPiecewisePointHandleItem_h
28#define vtkPiecewisePointHandleItem_h
29
30#include "vtkChartsCoreModule.h" // For export macro
31#include "vtkContextItem.h"
32#include "vtkWeakPointer.h" // Needed for weak pointer to the PiecewiseFunction.
33
34class vtkContext2D;
38
39class VTKCHARTSCORE_EXPORT vtkPiecewisePointHandleItem : public vtkContextItem
40{
41public:
43 void PrintSelf(ostream& os, vtkIndent indent) override;
44
46 static void CallRedraw(vtkObject* sender, unsigned long event, void* receiver, void* params);
47
51 void SetParent(vtkAbstractContextItem* parent) override;
52
56 bool Paint(vtkContext2D* painter) override;
57
59
62 vtkSetMacro(CurrentPointIndex, vtkIdType);
63 vtkGetMacro(CurrentPointIndex, vtkIdType);
65
67
70 virtual void SetPiecewiseFunction(vtkPiecewiseFunction* piecewiseFunc);
73
78 int IsOverHandle(float* pos);
79
83 bool Hit(const vtkContextMouseEvent& mouse) override;
84
88 bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
89
93 bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
94
98 bool MouseButtonReleaseEvent(const vtkContextMouseEvent& mouse) override;
99
100protected:
103
107 virtual void Redraw();
108
112
115
116private:
118 void operator=(const vtkPiecewisePointHandleItem&) = delete;
119
120 class InternalPiecewisePointHandleInfo;
121 InternalPiecewisePointHandleInfo* Internal;
122};
123
124#endif // vtkPiecewisePointHandleItem_h
base class for items that are part of a vtkContextScene.
supports function callbacks
Class for drawing 2D primitives to a graphical context.
Definition: vtkContext2D.h:73
base class for items that are part of a vtkContextScene.
data structure to represent mouse events.
a simple class to control print indentation
Definition: vtkIndent.h:113
abstract base class for most VTK objects
Definition: vtkObject.h:82
Defines a 1D piecewise function.
a vtkContextItem that draws handles around a point of a piecewise function
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
vtkWeakPointer< vtkPiecewiseFunction > GetPiecewiseFunction()
Set the PieceWiseFunction the handles will manipulate.
virtual void SetPiecewiseFunction(vtkPiecewiseFunction *piecewiseFunc)
Set the PieceWiseFunction the handles will manipulate.
virtual void Redraw()
Redraw all the handles.
int IsOverHandle(float *pos)
Returns the index of the handle if pos is over any of the handles, otherwise return -1;.
bool MouseMoveEvent(const vtkContextMouseEvent &mouse) override
Mouse move event.
bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse) override
Mouse button down event.
static vtkPiecewisePointHandleItem * New()
static void CallRedraw(vtkObject *sender, unsigned long event, void *receiver, void *params)
vtkWeakPointer< vtkPiecewiseFunction > PiecewiseFunction
bool Paint(vtkContext2D *painter) override
Paint event for the item.
bool Hit(const vtkContextMouseEvent &mouse) override
Returns true if the supplied x, y coordinate is inside the item.
bool MouseButtonReleaseEvent(const vtkContextMouseEvent &mouse) override
Mouse button release event.
void SetParent(vtkAbstractContextItem *parent) override
Set the parent item, which should be a vtkControlPointItem.
~vtkPiecewisePointHandleItem() override
a weak reference to a vtkObject.
int vtkIdType
Definition: vtkType.h:332