import pya

class PSAW(pya.PCellDeclarationHelper):

  def __init__(self):

    # Important: initialize the super class
    super(PSAW, self).__init__()

    gapL= 100
    busBarW= 150000 
    busBarL= 1500000
    padHotW= 200000
    padHotL= 200000
    padGndW= 200000
    padGndL= 200000
    padGndUConnL= 2*200000+2*10000
    padGndUConnW = 150000
    padClrncHotGnd = 100
            
    # declare the parameters
    self.param("lyr", self.TypeLayer, "Layer", default = pya.LayerInfo(1,0))
    self.param("shp", self.TypeShape, "", default = pya.DPoint(0, 0))

    self.param("gapL", self.TypeDouble, "Gap Length", default = busBarW)    
    self.param("busBarW", self.TypeDouble, "Busbar Width", default = busBarW)
    self.param("busBarL", self.TypeDouble, "Busbar Length", default = busBarL)
    self.param("padHotW", self.TypeDouble, "Hot Pad Width", default = padHotW)
    self.param("padHotL", self.TypeDouble, "Hot Pad Length", default = padHotL)
    self.param("padGndW", self.TypeDouble, "Gnd Pad Width", default = padGndW)
    self.param("padGndL", self.TypeDouble, "Gnd Pad Length", default = padGndL)
    self.param("padGndUConnW", self.TypeDouble, "Pad Gnd U-Shaped Width", default = padGndUConnW)
    self.param("padGndUConnL", self.TypeDouble, "Pad Gnd U-Shaped Length", default = padGndUConnL)

    
  def display_text_impl(self):
    return "PSAW - SAWD (Lyr=" + str(self.lyr) + ",gapL=" + ('%.3f' % (self.gapL)) + ")"
  
  def coerce_parameters_impl(self):
    pass
  
  def produce_impl(self):
    self.cell.clear(self.lyr_layer)     # Clear shapes already on the layer
    
    shps = [ s for s in self.cell.each_shape(self.lyr_layer) ] 
    print("# of shapes in layer (at the start of produce_impl()): " + str(len(shps)))
        
    # finding the PCell declaration object ...
    
    lib = pya.Library.library_by_name("MyLibT2")
    if lib == None:
      raise Exception("Unknown lib 'MyLibT2'")
    pcell_decl = lib.layout().pcell_declaration("ParrTnPatch");
    if pcell_decl == None:
        raise Exception("Unknown PCell 'ParrTnPatch'")
        
        
    param = {"lyr": self.layer, "digitW": 1500, "digitL": 70000}       
  
    pcell_var = self.layout.add_pcell_variant(lib, pcell_decl.id(), param)

    

    self.cell.insert(pya.CellInstArray(pcell_var, pya.Trans.R0))
    

class MyPCellLib(pya.Library):

  def __init__(self):
  
    self.description = "My PCell library"
    
    self.layout().register_pcell("PSAW", PSAW())

    self.register("MyPCellLib")
    

MyPCellLib()