ffcsegment.py

#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
#  MA 02110-1301, USA.
#

from __future__ import division
import pcbnew

import pcbnew
import FootprintWizardBase
import PadArray as PA

class FFCSegment(FootprintWizardBase.FootprintWizard):

    def GetName(self):
        return "FFCSegment"

    def GetDescription(self):
        return "FFC segments"

    def GenerateParameterList(self):
        self.AddParam("Traces", "n", self.uInteger, 8, multiple=1, min_value=1)
        self.AddParam('Traces', 'width', self.uMM, 0.2, designator='W')
        self.AddParam('Traces', 'length', self.uMM, 10, designator='L')
        self.AddParam('Traces', 'spacing', self.uMM, 0.2, designator='S')

    @property
    def traces(self):
        return self.parameters['Traces']

    def CheckParameters(self):
        pass

    def GetValue(self):

        return "Segment-{n}".format(
                n = self.traces['n']
                )

    def BuildThisFootprint(self):
        h_pad = PA.PadMaker(self.module).SMDPad( self.traces['width'], self.traces['width'],
                                                 shape=pcbnew.PAD_SHAPE_RECT)

        pitch = self.traces['spacing'] + self.traces['width']
        offset = pcbnew.PutOnGridMM((self.traces['width'] + self.traces['spacing']) * (self.traces['n'] - 1) / 2, 0.0001)

        # left
        pin1Pos = pcbnew.VECTOR2I(0, 0)
        array = PA.PadLineArray(h_pad, self.traces['n'], pitch, True, pin1Pos)
        array.SetFirstPadInArray(1)
        array.AddPadsToModule(self.draw)

        # right
        pin1Pos = pcbnew.VECTOR2I(self.traces['length'], 0)
        array = PA.PadLineArray(h_pad, self.traces['n'], pitch, True, pin1Pos)
        array.SetFirstPadInArray(1)
        array.AddPadsToModule(self.draw)

        # traces
        self.draw.SetLayer(pcbnew.F_Cu)
        self.draw.SetLineThickness(self.traces['width'])
        for i in range(self.traces['n']):
            y = i * pitch - offset
            self.draw.Line(0, y, self.traces['length'], y)
 
        # set SMD attribute
        self.module.SetAttributes(pcbnew.FP_SMD)
        for i in range(self.traces['n']):
            self.module.AddNetTiePadGroup(f'{i+1}, {i+1}')


FFCSegment().register()