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# Copyright 2007-2009 Nanorex, Inc. See LICENSE file for details.
"""
@author: Urmi, Mark
@version: $Id$
@copyright: 2007-2009 Nanorex, Inc. See LICENSE file for details.
@license: GPL
"""
from utilities.constants import gray, black, darkred, blue, white
from graphics.drawing.drawPeptideTrace import drawPeptideTrace ##, drawPeptideTrace_orig
from temporary_commands.LineMode.Line_Command import Line_Command
from temporary_commands.LineMode.Line_GraphicsMode import Line_GraphicsMode
from protein.commands.InsertPeptide.PeptideGenerator import PeptideGenerator, get_unit_length
# note: it would be better to move those into some other file
# so we didn't need to import them from another command
# (potential import cycle if that command ever needs to refer to this one)
# [bruce 090310 comment]
# ==
_superclass_for_GM = Line_GraphicsMode
class PeptideLine_GraphicsMode( Line_GraphicsMode ):
"""
Custom GraphicsMode used while interactively drawing a peptide chain for
the "Insert Peptide" command.
@see: InsertPeptide_EditCommand where this class is used.
"""
# The following valuse are used in drawing the 'sphere' that represent the
#first endpoint of the line. See Line_GraphicsMode.Draw_other for details.
endPoint1_sphereColor = white
endPoint1_sphereOpacity = 1.0
text = ""
structGenerator = PeptideGenerator()
def leftUp(self, event):
"""
Left up method.
"""
if self.command.mouseClickLimit is None:
if len(self.command.mouseClickPoints) == 2:
self.endPoint2 = None
self.command.createStructure()
self.glpane.gl_update()
pass
return
def snapLineEndPoint(self):
"""
Snap the line to the specified constraints.
To be refactored and expanded.
@return: The new endPoint2 i.e. the moving endpoint of the rubberband
line . This value may be same as previous or snapped so that it
lies on a specified vector (if one exists)
@rtype: B{A}
"""
if self.command.callbackForSnapEnabled() == 1:
endPoint2 = _superclass_for_GM.snapLineEndPoint(self)
else:
endPoint2 = self.endPoint2
return endPoint2
def Draw_other(self):
"""
"""
_superclass_for_GM.Draw_other(self)
if self.endPoint2 is not None and \
self.endPoint1 is not None:
# Generate a special chunk that contains only alpha carbon atoms
# that will be used to draw the peptide backbone trace.
# [by Mark, I guess?]
# Note: this chunk is used only for its (ordered) atom positions;
# it's not drawn in the usual way, and it's not part of the model.
# So this belongs in Draw_other, not Draw_model.
#
### REVIEW: this is probably very slow, compared to just generating
# the positions and passing a position-list to drawPeptideTrace.
# It's conceivable it also introduces bugs to do it this way
# (depending on whether making this chunk has any side effects
# on assy) -- I don't know of any, but didn't look closely.
#
# [bruce comments 090310]
alphaCarbonProteinChunk = \
self.structGenerator.make_aligned(
self.win.assy, "", 0,
self.command.phi,
self.command.psi,
self.endPoint1,
self.endPoint2,
fake_chain = True)
drawPeptideTrace(alphaCarbonProteinChunk)
# The original way of drawing the peptide trace.
# This function is deprecated and marked for removal.
# --Mark 2008-12-23
#drawPeptideTrace_orig(self.endPoint1,
#self.endPoint2,
#135,
#-135,
#self.glpane.scale,
#self.glpane.lineOfSight,
#beamThickness = 4.0
#)
pass
return
pass # end of class PeptideLine_GraphicsMode
# end
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