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Package glitter :: Package utils :: Module objects :: Class ManagedObject
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Class ManagedObject

source code

object --+    
         |    
  GLObject --+
             |
            ManagedObject
Known Subclasses:

Base class for objects that can be created and deleted in OpenGL.

When a ManagedObject instance is garbage collected, the corresponding OpenGL object is deleted as well.

For each ManagedObject subclass, the context keeps a database of existing objects.

Instance Methods [hide private]
 
__init__(self, context=None)
Create a new ManagedObject using _generate_id.		 source code
 
__del__(self)
Delete the OpenGL object using _delete_id.		 source code

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __repr__, __setattr__, __sizeof__, __str__, __subclasshook__

Class Variables [hide private]
  _generate_id = NotImplemented
Constructor function.
  _delete_id = NotImplemented
Destructor function.
  _type = NotImplemented
An optional parameter for _generate_id.
  _db = NotImplemented
The name of the corresponding object database in the Context.
Instance Variables [hide private]
  _id
ID generated by OpenGL.

Inherited from GLObject (private): _context

Properties [hide private]

Inherited from GLObject: context

Inherited from object: __class__

Method Details [hide private]

__init__(self, context=None)
(Constructor)

source code 

Create a new ManagedObject using _generate_id.

Parameters:
  • context (Context) - The parent context.
Overrides: object.__init__

__del__(self)
(Destructor)

source code 

Delete the OpenGL object using _delete_id.

Any errors will be ignored because the OpenGL module may already have been garbage collected when the interpreter exits.


Class Variable Details [hide private]

_generate_id

Constructor function.

Example: glGenShader

If the function has an argtypes attribute, it may have zero, one, or two parameters. If it has one parameter, _type is passed as the parameter, and the return value is used as _id. If it has two parameters, 1 is passed as the first and a GLuint pointer as the second parameter; the number returned in this pointer is used as the _id. All other functions are simply called and their return values used as _id.

Value:
NotImplemented

_delete_id

Destructor function.

Example: glDeleteShader

If the function has an argtypes attribute and two arguments, 1 is passed as the first and a GLuint pointer to _id as the second parameter. Otherwise, _id is passed as the only parameter.

Value:
NotImplemented

_type

An optional parameter for _generate_id.

Example: GL_VERTEX_SHADER

Value:
NotImplemented

_db

The name of the corresponding object database in the Context.

Example: "shaders"

Value:
NotImplemented

Instance Variable Details [hide private]

_id

ID generated by OpenGL. The ID is only unique per context.

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