135 lines
3.9 KiB
Python
135 lines
3.9 KiB
Python
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#A* -------------------------------------------------------------------
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#B* This file contains source code for the PyMOL computer program
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#C* copyright 1998-2007 by Warren Lyford Delano of DeLano Scientific.
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#D* -------------------------------------------------------------------
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#E* It is unlawful to modify or remove this copyright notice.
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#F* -------------------------------------------------------------------
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#G* Please see the accompanying LICENSE file for further information.
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#H* -------------------------------------------------------------------
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#I* Additional authors of this source file include:
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#-*
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#-*
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#-*
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#Z* -------------------------------------------------------------------
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import pymol
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from pymol import _cmd
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import threading
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import sys
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pymol2_lock = threading.RLock()
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##
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## FIXME: The PyMOL and SingletonPyMOL classes are partly redundant with the
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## instance tracking of the "cmd" module (and the pymol2.cmd2.Cmd class),
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## which also holds the _COb pointer.
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##
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class SingletonPyMOL:
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'''
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Start an exclusive PyMOL instance, only one instance allowed
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'''
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def idle(self):
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return _cmd._idle(self._COb)
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def getRedisplay(self, reset=True):
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return _cmd._getRedisplay(self._COb, reset)
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def reshape(self, width, height, force=0):
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_cmd._reshape(self._COb, width, height, force)
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def draw(self):
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_cmd._draw(self._COb)
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def button(self, button, state, x, y, modifiers):
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_cmd._button(self._COb, button, state, x, y, modifiers)
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def drag(self, x, y, modifiers):
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_cmd._drag(self._COb, x, y, modifiers)
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def start(self):
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cmd = pymol.cmd
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if cmd._COb is not None:
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raise RuntimeError('can only start SingletonPyMOL once')
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with pymol2_lock:
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cmd._COb = _cmd._new(pymol, pymol.invocation.options, True)
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_cmd._start(cmd._COb, cmd)
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# this instance tracking is redundant with the "cmd" module itself
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self._COb = cmd._COb
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self.cmd = cmd
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def stop(self):
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with pymol2_lock:
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_cmd._stop(self._COb)
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pymol.cmd._COb = None
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def __enter__(self):
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self.start()
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return self
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def __exit__(self, exc_type, exc_value, tb):
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self.stop()
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class PyMOL(SingletonPyMOL):
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'''
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Start a non-exclusive PyMOL instance, multiple instances are possible
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'''
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def __getattr__(self, key):
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# Make this a proxy to the "pymol" module.
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return getattr(pymol, key)
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def __init__(self,scheme=None): # initialize a PyMOL instance
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from .cmd2 import Cmd
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with pymol2_lock:
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pymol._init_internals(self)
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self.invocation = self._invocation
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options = self.invocation.options
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if scheme is not None: #
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if scheme == 'presentation':
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options.quiet = 0
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options.show_splash = 0
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options.external_gui = 0
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options.internal_feedback = 0
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options.no_quit = 1
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options.internal_gui = 0
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options.presentation = 1
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elif scheme == 'widget': # An embedded widget of some type
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options.quiet = 0
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options.show_splash = 0
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options.external_gui = 0
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options.internal_feedback = 1
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options.no_quit = 1
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else:
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options.show_splash = 0 # suppress this annoyance by default
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self._COb = _cmd._new(self,self.invocation.options)
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# initialize the cmd API
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self.cmd = Cmd(self,self._COb)
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# begin assembling the instance member by member
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self.glutThread = None
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def __del__(self):
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self.cmd.__dict__.clear()
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def start(self):
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with pymol2_lock:
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_cmd._start(self._COb, self.cmd)
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def stop(self):
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_cmd._stop(self._COb)
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