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SoEngine.h
1 /**************************************************************************\
2  *
3  * This file is part of the Coin 3D visualization library.
4  * Copyright (C) 1998-2007 by Systems in Motion. All rights reserved.
5  *
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9  * See the file LICENSE.GPL at the root directory of this source
10  * distribution for additional information about the GNU GPL.
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13  * GPL, and for taking advantage of the additional benefits of our
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15  * a Coin Professional Edition License.
16  *
17  * See http://www.coin3d.org/ for more information.
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20  * http://www.sim.no/ sales@sim.no coin-support@coin3d.org
21  *
22 \**************************************************************************/
23 
24 #ifndef COIN_SOENGINE_H
25 #define COIN_SOENGINE_H
26 
27 #include <Inventor/fields/SoFieldContainer.h>
28 
29 class SoEngineList;
30 class SoEngineOutput;
31 class SoEngineOutputList;
32 class SoEngineOutputData;
33 
34 class COIN_DLL_API SoEngine : public SoFieldContainer {
36 
37 public:
38  static void initClass(void);
39  static void initClasses(void);
40  static SoType getClassTypeId(void);
41 
42  void evaluateWrapper(void);
43 
44  virtual int getOutputs(SoEngineOutputList & l) const;
45  SoEngineOutput * getOutput(const SbName & outputname) const;
46  SbBool getOutputName(const SoEngineOutput * output, SbName & outputname) const;
47  virtual const SoEngineOutputData * getOutputData(void) const = 0;
48  static SoEngine * getByName(const SbName & name);
49  static int getByName(const SbName & name, SoEngineList & el);
50 
51  SbBool isNotifying(void) const;
52  virtual void notify(SoNotList * nl);
53 
54  SoEngine * copy(void) const;
55  virtual SoFieldContainer * copyThroughConnection(void) const;
56  SbBool shouldCopy(void) const;
57 
58  virtual void writeInstance(SoOutput * out);
59 
60 
61 protected:
62  SoEngine(void);
63  virtual ~SoEngine();
64  virtual void evaluate(void) = 0;
65 
66  virtual SbBool readInstance(SoInput * in, unsigned short flags);
67  virtual void inputChanged(SoField * which);
68 
69  static const SoFieldData ** getInputDataPtr(void);
70  static const SoEngineOutputData ** getOutputDataPtr(void);
71 
72  void writeOutputTypes(SoOutput * out);
73 
74 private:
75  virtual void destroy(void); // overrides SoBase::destroy()
76 
77  static SoType classTypeId;
78 
79  enum InternalEngineFlags {
80  FLAG_ISNOTIFYING = (1 << 0),
81  FLAG_ISDIRTY = (1 << 1)
82  };
83 
84  unsigned int flags;
85 
86  // needed for handling connections from SoEngineOutput
87  friend class SoEngineOutput;
88  void setDirty(void);
89 };
90 
91 #if !defined(COIN_INTERNAL)
92 #include <Inventor/engines/SoEngineOutput.h>
93 #endif // COIN_INTERNAL
94 
95 #endif // !COIN_SOENGINE_H

Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.

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