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# Copyright 2008 Nanorex, Inc. See LICENSE file for details.
"""
@author: Ninad
@copyright: 2008 Nanorex, Inc. See LICENSE file for details.
@version:$Id$
History:
2008-05-21 - 2008-06-01 Created and further refactored and modified
@See: ListWidgetItems_Command_Mixin,
ListWidgetItems_GraphicsMode_Mixin
ListWidgetItems_PM_Mixin,
CrossoverSite_Marker
MakeCrossovers_GraphicsMode
TODO 2008-06-01 :
- See class CrossoverSite_Marker for details
- more Documentation
"""
from exprs.If_expr import If_expr
from exprs.instance_helpers import DelegatingInstanceOrExpr
from exprs.Arrow import Arrow
from exprs.ExprsConstants import ORIGIN
from exprs.Highlightable import Highlightable
from exprs.attr_decl_macros import Instance, Option, Arg
from exprs.ExprsConstants import Point
from utilities.constants import black, banana, copper, silver
from exprs.Set import Action
from exprs.__Symbols__ import _self
from exprs.attr_decl_macros import State
from exprs.__Symbols__ import Anything
from exprs.dna_ribbon_view import Cylinder
from exprs.ExprsConstants import Vector
from exprs.Overlay import Overlay
from exprs.Exprs import call_Expr
class MakeCrossovers_Handle(DelegatingInstanceOrExpr):
should_draw = State(bool, True)
radius = 0.8
point1 = Arg(Point)
point2 = Arg(Point)
scale = Arg(float)
crossoverSite_marker = Option(
Action,
doc = 'The CrossoverSite Marker class which instantiates this handle')
#Command object specified as an 'Option' during instantiation of the class
#see DnaSegment_EditCommand class definition.
command = Option(Action,
doc = 'The Command which instantiates this handle')
crossoverPairs = Option(tuple, ())
#Stateusbar text. Variable needs to be renamed in superclass.
sbar_text = Option(str,
"Click on the handle to create this crossover",
doc = "Statusbar text on mouseover")
delegate = If_expr(_self.should_draw,
Highlightable(
Overlay (
Cylinder((call_Expr(_self.crossoverPairs[0].posn),
call_Expr(_self.crossoverPairs[3].posn)),
radius = radius,
color = silver),
Cylinder((call_Expr(_self.crossoverPairs[1].posn),
call_Expr(_self.crossoverPairs[2].posn)),
radius = radius,
color = silver)),
Overlay (
Cylinder((call_Expr(_self.crossoverPairs[0].posn),
call_Expr(_self.crossoverPairs[3].posn)),
radius = radius,
color = banana),
Cylinder((call_Expr(_self.crossoverPairs[1].posn),
call_Expr(_self.crossoverPairs[2].posn)),
radius = radius,
color = banana)),
on_press = _self.on_press,
on_release = _self.on_release,
sbar_text = sbar_text
))
##delegate = If_expr(_self.should_draw,
##Highlightable(Cylinder((point1, point2),
##radius = radius,
##color = silver),
##Cylinder((point1, point2),
##radius = radius,
##color = banana),
##on_press = _self.on_press,
##on_release = _self.on_release))
##delegate = \
##If_expr(
##_self.should_draw,
##Highlightable(Arrow(
##color = silver,
##arrowBasePoint = point1,
####tailPoint = norm(vector)*1.0,
##tailPoint = point2,
##radius = radius,
##scale = scale),
##Arrow(
##color = banana,
##arrowBasePoint = point1,
####tailPoint = norm(vector)*1.0,
##tailPoint = point2,
##radius = radius,
##scale = scale),
##on_press = _self.on_press,
##on_release = _self.on_release ) ) #
def hasValidParamsForDrawing(self):
"""
Overridden in subclasses. Default implementation returns True
if this object (the highlightable) can be drawn without any known
issues
@see: DnaStrand_ResizeHandle.hasValidParamsForDrawing for more notes.
"""
##self.should_draw = True
return self.should_draw
def on_press(self):
pass
def on_release(self):
self.command.makeCrossover(self.crossoverPairs)
self.crossoverSite_marker.removeHandle(self)
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