1 /*=========================================================================
2 
3   Program:   Visualization Toolkit
4   Module:    vtkWindowNode.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 /**
16  * @class   vtkWindowNode
17  * @brief   vtkViewNode specialized for vtkRenderWindows
18  *
19  * State storage and graph traversal for vtkRenderWindow
20  */
21 
22 #ifndef vtkWindowNode_h
23 #define vtkWindowNode_h
24 
25 #include "vtkRenderingSceneGraphModule.h" // For export macro
26 #include "vtkViewNode.h"
27 
28 class vtkUnsignedCharArray;
29 class vtkFloatArray;
30 
31 class VTKRENDERINGSCENEGRAPH_EXPORT vtkWindowNode : public vtkViewNode
32 {
33 public:
34   static vtkWindowNode* New();
35   vtkTypeMacro(vtkWindowNode, vtkViewNode);
36   void PrintSelf(ostream& os, vtkIndent indent) override;
37 
38   /**
39    * Build containers for our child nodes.
40    */
41   void Build(bool prepass) override;
42 
43   /**
44    * Get state of my renderable.
45    */
46   void Synchronize(bool prepass) override;
47 
48   /**
49    * Return the size of the last rendered image
50    */
GetSize()51   virtual int* GetSize() { return this->Size; }
52 
53   /**
54    * Get the most recent color buffer RGBA
55    */
GetColorBuffer()56   virtual vtkUnsignedCharArray* GetColorBuffer() { return this->ColorBuffer; }
57 
58   /**
59    * Get the most recent zbuffer buffer
60    */
GetZBuffer()61   virtual vtkFloatArray* GetZBuffer() { return this->ZBuffer; }
62 
63 protected:
64   vtkWindowNode();
65   ~vtkWindowNode() override;
66 
67   // TODO: use a map with string keys being renderable's member name
68   // state
69   int Size[2];
70 
71   // stores the results of a render
72   vtkUnsignedCharArray* ColorBuffer;
73   vtkFloatArray* ZBuffer;
74 
75 private:
76   vtkWindowNode(const vtkWindowNode&) = delete;
77   void operator=(const vtkWindowNode&) = delete;
78 };
79 
80 #endif
81