VTK  9.3.20240329
vtkOpenGLPropItem.h
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1 // SPDX-FileCopyrightText: Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
2 // SPDX-License-Identifier: BSD-3-Clause
3 
15 #ifndef vtkOpenGLPropItem_h
16 #define vtkOpenGLPropItem_h
17 
18 #include "vtkNew.h" // for vtkNew
19 #include "vtkPropItem.h"
20 #include "vtkRenderingContextOpenGL2Module.h" // For export macro
21 
22 VTK_ABI_NAMESPACE_BEGIN
23 class vtkCamera;
24 
25 class VTKRENDERINGCONTEXTOPENGL2_EXPORT vtkOpenGLPropItem : public vtkPropItem
26 {
27 public:
30  void PrintSelf(ostream& os, vtkIndent indent) override;
31 
32  bool Paint(vtkContext2D* painter) override;
33 
34 protected:
36  ~vtkOpenGLPropItem() override;
37 
38  // Sync the active vtkCamera with the GL state set by the painter.
39  void UpdateTransforms() override;
40 
41  // Restore the vtkCamera state.
42  void ResetTransforms() override;
43 
44 private:
45  vtkNew<vtkCamera> CameraCache;
46  vtkContext2D* Painter;
47 
48  vtkOpenGLPropItem(const vtkOpenGLPropItem&) = delete;
49  void operator=(const vtkOpenGLPropItem&) = delete;
50 };
51 
52 VTK_ABI_NAMESPACE_END
53 #endif // vtkOpenGLPropItem_h
a virtual camera for 3D rendering
Definition: vtkCamera.h:151
Class for drawing 2D primitives to a graphical context.
Definition: vtkContext2D.h:69
a simple class to control print indentation
Definition: vtkIndent.h:108
Sync Context2D state with vtk camera.
void UpdateTransforms() override
bool Paint(vtkContext2D *painter) override
Paint event for the item, called whenever the item needs to be drawn.
static vtkOpenGLPropItem * New()
void PrintSelf(ostream &os, vtkIndent indent) override
Methods invoked by print to print information about the object including superclasses.
void ResetTransforms() override
~vtkOpenGLPropItem() override
Embed a vtkProp in a vtkContextScene.
Definition: vtkPropItem.h:27