#!/usr/bin/python

import sys
from   Hurricane import *
from   CRL       import *


def toDbU ( l ): return DbU.fromLambda(l)


def doBreak ( level, message ):
    UpdateSession.close()
    Breakpoint.stop( level, message )
    UpdateSession.open()


def buildFulladder ( editor ):

   # Get the Framework and all the master cells.
    af     = AllianceFramework.get()
    xr2_x2 = af.getCell( 'xr2_x1', Catalog.State.Views )
    a2_x2  = af.getCell( 'a2_x2' , Catalog.State.Views )
    o2_x2  = af.getCell( 'o2_x2' , Catalog.State.Views )

    UpdateSession.open()

    fulladder = af.createCell( 'fulladder' )
    fulladder.setAbutmentBox( Box( toDbU(0.0), toDbU(0.0), toDbU(90.0), toDbU(100.0) ) )

    if editor:
      UpdateSession.close()
      editor.setCell( fulladder )
      editor.fit()
      UpdateSession.open()
    
   # Create Instances.
    a2_1  = Instance.create( fulladder,  'a2_1',  a2_x2 )
    a2_2  = Instance.create( fulladder,  'a2_2',  a2_x2 ) 
    xr2_1 = Instance.create( fulladder, 'xr2_1', xr2_x2 )
    xr2_2 = Instance.create( fulladder, 'xr2_2', xr2_x2 )
    o2_1  = Instance.create( fulladder,  'o2_1',  o2_x2 )
    
   # Create Nets.
    vss = Net.create( fulladder, "vss" )
    vss.setExternal( True )
    vss.setGlobal  ( True )

    vdd = Net.create( fulladder, "vdd" )
    vdd.setExternal( True )
    vdd.setGlobal  ( True )

    cin = Net.create( fulladder, "cin" )
    cin.setExternal( True )
    xr2_2.getPlug( xr2_x2.getNet('i0') ).setNet( cin )
    a2_2 .getPlug(  a2_x2.getNet('i0') ).setNet( cin )
    
    a = Net.create( fulladder, 'a' )
    a.setExternal( True )
    xr2_1.getPlug( xr2_x2.getNet('i0') ).setNet( a )
    a2_1 .getPlug(  a2_x2.getNet('i0') ).setNet( a )
    
    b = Net.create( fulladder, 'b' )
    b.setExternal( True )
    xr2_1.getPlug( xr2_x2.getNet('i1') ).setNet( b )
    a2_1 .getPlug(  a2_x2.getNet('i1') ).setNet( b )
    
    sout_1 = Net.create( fulladder, 'sout_1' )
    xr2_1.getPlug( xr2_x2.getNet('q' ) ).setNet( sout_1 )
    xr2_2.getPlug( xr2_x2.getNet('i1') ).setNet( sout_1 )
    a2_2 .getPlug(  a2_x2.getNet('i1') ).setNet( sout_1 )
    
    carry_1 = Net.create( fulladder, 'carry_1' )
    a2_1.getPlug( a2_x2.getNet('q' ) ).setNet( carry_1 )
    o2_1.getPlug( o2_x2.getNet('i1') ).setNet( carry_1 )

    carry_2 = Net.create( fulladder, 'carry_2' )
    a2_2.getPlug( a2_x2.getNet('q' ) ).setNet( carry_2 )
    o2_1.getPlug( o2_x2.getNet('i0') ).setNet( carry_2 )

    sout = Net.create( fulladder, 'sout' )
    sout.setExternal( True )
    xr2_2.getPlug( xr2_x2.getNet('q') ).setNet( sout )
    
    cout = Net.create( fulladder, 'cout' )
    cout.setExternal( True )
    o2_1.getPlug( o2_x2.getNet('q') ).setNet( cout )

   # Instances placement.
    a2_1.setTransformation( Transformation( toDbU(0.0)
                                          , toDbU(0.0)
                                          , Transformation.Orientation.ID ) )
    a2_1.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Placed a2_1' )

    xr2_1.setTransformation( Transformation( toDbU(  0.0)
                                           , toDbU(100.0)
                                           , Transformation.Orientation.MY ) )
    xr2_1.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Placed xr2_1' )

    a2_2.setTransformation( Transformation( toDbU(25.0)
                                          , toDbU( 0.0)
                                          , Transformation.Orientation.ID ) )
    a2_2.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Placed a2_2' )

    xr2_2.setTransformation( Transformation( toDbU( 45.0)
                                           , toDbU(100.0)
                                           , Transformation.Orientation.MY ) )
    xr2_2.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Placed xr2_2' )

    o2_1.setTransformation( Transformation( toDbU(65.0)
                                          , toDbU( 0.0)
                                          , Transformation.Orientation.ID ) )
    o2_1.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Placed o2_1' )

   # Add filler cells.
    tie_x0    = af.getCell(    'tie_x0', Catalog.State.Views )
    rowend_x0 = af.getCell( 'rowend_x0', Catalog.State.Views )
    filler_1  = Instance.create( fulladder, 'filler_1',    tie_x0 )
    filler_2  = Instance.create( fulladder, 'filler_2', rowend_x0 )

    filler_1.setTransformation( Transformation( toDbU(50.0)
                                              , toDbU( 0.0)
                                              , Transformation.Orientation.ID ) )
    filler_1.setPlacementStatus( Instance.PlacementStatus.PLACED )

    filler_2.setTransformation( Transformation( toDbU(60.0)
                                              , toDbU( 0.0)
                                              , Transformation.Orientation.ID ) )
    filler_2.setPlacementStatus( Instance.PlacementStatus.PLACED )
    doBreak( 1, 'Filler cell placeds' )
    
   # Getting the layers.
    technology = DataBase.getDB().getTechnology()
    metal2     = technology.getLayer( "METAL2" ) 
    metal3     = technology.getLayer( "METAL3" ) 
    via12      = technology.getLayer( "VIA12"  ) 
    via23      = technology.getLayer( "VIA23"  ) 

   # Build wiring for a.
   # Create RoutingPads first.
    rp1      = RoutingPad.create( a
                                , Occurrence( xr2_1.getPlug( xr2_x2.getNet("i0")) )
                                , RoutingPad.BiggestArea )
    rp2      = RoutingPad.create( a
                                , Occurrence(  a2_1.getPlug(  a2_x2.getNet("i0")) )
                                , RoutingPad.BiggestArea )

   # Then regular wiring.
    contact1 = Contact.create( rp1, via12, toDbU( 0.0), toDbU(-15.0) )
    contact2 = Contact.create( rp2, via12, toDbU( 0.0), toDbU( 10.0) )
    turn     = Contact.create( a  , via23, toDbU(10.0), toDbU( 35.0) )
    Horizontal.create( contact2, turn    , metal2, toDbU(35.0), toDbU(2.0) )
    Vertical  .create( turn    , contact1, metal3, toDbU(10.0), toDbU(2.0) )

    UpdateSession.close()

    af.saveCell( fulladder, Catalog.State.Views )
    return


def ScriptMain ( **kw ):
    editor = None
    if kw.has_key('editor') and kw['editor']:
      editor = kw['editor']

    buildFulladder( editor )
    return True