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SoNodeSensor.h
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1 /*
2  *
3  * Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Lesser General Public
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36 
37 
38 /*
39  * Copyright (C) 1990,91,92 Silicon Graphics, Inc.
40  *
41  _______________________________________________________________________
42  ______________ S I L I C O N G R A P H I C S I N C . ____________
43  |
44  | $Revision: 1.1.1.1 $
45  |
46  | Description:
47  | Data sensor that is attached to a node in a scene graph. The
48  | sensor is scheduled when a change is made to the node or to any
49  | node below it in the graph.
50  |
51  | Author(s) : Nick Thompson, Paul Strauss
52  |
53  ______________ S I L I C O N G R A P H I C S I N C . ____________
54  _______________________________________________________________________
55  */
56 
57 #ifndef _SO_NODE_SENSOR_
58 #define _SO_NODE_SENSOR_
59 
61 
64 
76 
78 
79  public:
80 
86  SoNodeSensor(SoSensorCB *func, void *data);
87 
90  virtual ~SoNodeSensor();
91 
94  void attach(SoNode *node);
95 
98  void detach();
99 
102  SoNode * getAttachedNode() const { return node; }
103 
104  private:
105  SoNode * node;
106 
108  virtual void dyingReference();
109 };
110 
111 #endif /* _SO_NODE_SENSOR_ */
#define INVENTOR_API
Disable some annoying warnings on MSVC 6.
Definition: SbSystem.h:81
void SoSensorCB(void *data, SoSensor *sensor)
This typedef defines the calling sequence for all callbacks from sensors.
Definition: SoSensor.h:89
Abstract base class for sensors attached to parts of a scene.
Definition: SoDataSensor.h:93
virtual void dyingReference()=0
This is called when the base (path, field, node, whatever) is deleted.
Sensor class that can be attached to Inventor nodes.
Definition: SoNodeSensor.h:77
void detach()
Unschedules this sensor (if it is scheduled) and makes it ignore changes to the scene graph.
virtual ~SoNodeSensor()
Destroys the sensor, freeing up any memory associated with it after unscheduling it.
SoNode * getAttachedNode() const
Returns the node that this sensor is sensing, or NULL if it is not attached to any node.
Definition: SoNodeSensor.h:102
SoNodeSensor()
Creation methods.
void attach(SoNode *node)
Makes this sensor detect changes to the given node.
SoNodeSensor(SoSensorCB *func, void *data)
Creation methods.
Abstract base class for all database nodes.
Definition: SoNode.h:103