VTK  9.0.3
vtkBlockItem.h
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1 /*=========================================================================
2 
3  Program: Visualization Toolkit
4  Module: vtkBlockItem.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 
25 #ifndef vtkBlockItem_h
26 #define vtkBlockItem_h
27 
28 #include "vtkContextItem.h"
29 #include "vtkRenderingContext2DModule.h" // For export macro
30 #include "vtkStdString.h" // For vtkStdString ivars
31 
32 class vtkContext2D;
33 
34 class VTKRENDERINGCONTEXT2D_EXPORT vtkBlockItem : public vtkContextItem
35 {
36 public:
37  vtkTypeMacro(vtkBlockItem, vtkContextItem);
38  void PrintSelf(ostream& os, vtkIndent indent) override;
39 
40  static vtkBlockItem* New();
41 
45  bool Paint(vtkContext2D* painter) override;
46 
50  bool Hit(const vtkContextMouseEvent& mouse) override;
51 
55  bool MouseEnterEvent(const vtkContextMouseEvent& mouse) override;
56 
60  bool MouseMoveEvent(const vtkContextMouseEvent& mouse) override;
61 
65  bool MouseLeaveEvent(const vtkContextMouseEvent& mouse) override;
66 
70  bool MouseButtonPressEvent(const vtkContextMouseEvent& mouse) override;
71 
75  bool MouseButtonReleaseEvent(const vtkContextMouseEvent& mouse) override;
76 
80  virtual void SetLabel(const vtkStdString& label);
81 
86 
88 
94  vtkSetVector4Macro(Dimensions, float);
96 
98 
104  vtkGetVector4Macro(Dimensions, float);
106 
107  void SetScalarFunctor(double (*scalarFunction)(double, double));
108 
109 protected:
111  ~vtkBlockItem() override;
112 
113  float Dimensions[4];
114 
116 
117  bool MouseOver;
118 
119  // Some function pointers to optionally do funky things...
120  double (*scalarFunction)(double, double);
121 
122 private:
123  vtkBlockItem(const vtkBlockItem&) = delete;
124  void operator=(const vtkBlockItem&) = delete;
125 };
126 
127 #endif // vtkBlockItem_h
a vtkContextItem that draws a block (optional label).
Definition: vtkBlockItem.h:35
bool MouseMoveEvent(const vtkContextMouseEvent &mouse) override
Mouse move event.
vtkStdString Label
Definition: vtkBlockItem.h:115
static vtkBlockItem * New()
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
virtual vtkStdString GetLabel()
Get the block label.
bool MouseEnterEvent(const vtkContextMouseEvent &mouse) override
Mouse enter event.
void SetScalarFunctor(double(*scalarFunction)(double, double))
virtual void SetLabel(const vtkStdString &label)
Set the block label.
bool MouseButtonReleaseEvent(const vtkContextMouseEvent &mouse) override
Mouse button release event.
bool MouseButtonPressEvent(const vtkContextMouseEvent &mouse) override
Mouse button down event.
bool Hit(const vtkContextMouseEvent &mouse) override
Returns true if the supplied x, y coordinate is inside the item.
~vtkBlockItem() override
bool MouseLeaveEvent(const vtkContextMouseEvent &mouse) override
Mouse leave event.
bool Paint(vtkContext2D *painter) override
Paint event for the item.
Class for drawing 2D primitives to a graphical context.
Definition: vtkContext2D.h:53
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:34
Wrapper around std::string to keep symbols short.
Definition: vtkStdString.h:35