#!/usr/bin/python # # This program source code file is part of KiCad, a free EDA CAD application. # # Copyright (C) 2012-2014 KiCad Developers, see change_log.txt for contributors. # # 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, you may find one here: # http://www.gnu.org/licenses/old-licenses/gpl-2.0.html # or you may search the http://www.gnu.org website for the version 2 license, # or you may write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA # from pcbnew import * import FootprintWizardBase import pcbnew class TouchSliderWizard(FootprintWizardBase.FootprintWizard): def GetName(self): """ Return footprint name. This is specific to each footprint class, you need to implement this """ return 'Touch Slider' def GetDescription(self): """ Return footprint description. This is specific to each footprint class, you need to implement this """ return 'Capacitive Touch Slider wizard' def GetValue(self): return "TouchSlider-{s}_{x:g}x{y:g}mm".format( s = self.pads['steps'], x = pcbnew.ToMM(self.pads['length']), y = pcbnew.ToMM(self.pads['width']) ) def GenerateParameterList(self): self.AddParam("Pads", "steps", self.uInteger, 4, min_value=2) self.AddParam("Pads", "bands", self.uInteger, 2, min_value=1) self.AddParam("Pads", "width", self.uMM, 10) self.AddParam("Pads", "length", self.uMM, 50) self.AddParam("Pads", "clearance", self.uMM, 1) @property def pads(self): return self.parameters['Pads'] # build a rectangular pad def smdRectPad(self,module,size,pos,name): pad = D_PAD(module) pad.SetSize(size) pad.SetShape(PAD_SHAPE_RECT) pad.SetAttribute(PAD_ATTRIB_SMD) pad.SetLayerSet(pad.ConnSMDMask()) pad.SetPos0(pos) pad.SetPosition(pos) pad.SetName(name) return pad def smdTrianglePad(self,module,size,pos,name,up_down=1,left_right=0): pad = D_PAD(module) pad.SetSize(wxSize(size[0],size[1])) pad.SetShape(PAD_SHAPE_TRAPEZOID) pad.SetAttribute(PAD_ATTRIB_SMD) pad.SetLayerSet(pad.ConnSMDMask()) pad.SetPos0(pos) pad.SetPosition(pos) pad.SetName(name) pad.SetDelta(wxSize(left_right*size[1],up_down*size[0])) return pad # This method checks the parameters provided to wizard and set errors def CheckParameters(self): #TODO - implement custom checks pass # The start pad is made of a rectangular pad plus a couple of # triangular pads facing tips on the middle/right of the first # rectangular pad def AddStartPad(self,position,touch_width,step_length,clearance,name): module = self.module step_length = step_length - clearance size_pad = wxSize(step_length/2.0+(step_length/3),touch_width) pad = self.smdRectPad(module,size_pad,position-wxPoint(step_length/6,0),name) module.Add(pad) size_pad = wxSize(step_length/2.0,touch_width) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(size_pad[0]/2,size_pad[1]/4), name) module.Add(tp) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(size_pad[0]/2,-size_pad[1]/4), name ,-1) module.Add(tp) # compound a "start pad" shape plus a triangle on the left, pointing to # the previous touch-pad def AddMiddlePad(self,position,touch_width,step_length,clearance,name): module = self.module step_length = step_length - clearance size_pad = wxSize(step_length/2.0,touch_width) size_pad = wxSize(step_length/2.0,touch_width) pad = self.smdRectPad(module,size_pad,position,name) module.Add(pad) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(size_pad[0]/2,size_pad[1]/4), name) module.Add(tp) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(size_pad[0]/2,-size_pad[1]/4), name ,-1) module.Add(tp) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(-size_pad[0],0), name, 0, -1) module.Add(tp) def AddFinalPad(self,position,touch_width,step_length,clearance,name): module = self.module step_length = step_length - clearance size_pad = wxSize(step_length/2.0,touch_width) pad = self.smdRectPad(module, wxSize(size_pad[0]+(step_length/3),size_pad[1]), position+wxPoint(step_length/6,0), name) module.Add(pad) tp = self.smdTrianglePad(module,wxSize(size_pad[0],size_pad[1]/2), position+wxPoint(-size_pad[0],0), name, 0, -1) module.Add(tp) def AddStrip(self,pos,steps,touch_width,step_length,touch_clearance): self.AddStartPad(pos,touch_width,step_length,touch_clearance,"1") for n in range(2,steps): pos = pos + wxPoint(step_length,0) self.AddMiddlePad(pos,touch_width,step_length,touch_clearance,str(n)) pos = pos + wxPoint(step_length,0) self.AddFinalPad(pos,touch_width,step_length,touch_clearance,str(steps)) # build the footprint from parameters # FIX ME: the X and Y position of the footprint can be better. def BuildThisFootprint(self): steps = self.pads["steps"] bands = self.pads["bands"] touch_width = self.pads["width"] touch_length = self.pads["length"] touch_clearance = self.pads["clearance"] step_length = float(touch_length) / float(steps) t_size = self.GetTextSize() w_text = self.draw.GetLineThickness() ypos = touch_width/2 + t_size/2 + w_text self.draw.Value(0, -ypos, t_size) ypos += t_size + w_text*2 self.draw.Reference(0, -ypos, t_size) # set SMD attribute self.module.SetAttributes(MOD_CMS) # starting pad band_width = touch_width/bands xpos = -0.5 * (steps - 1) * step_length ypos = -0.5 * (bands - 1) * band_width pos = wxPointMM(pcbnew.ToMM(xpos), pcbnew.ToMM(ypos)) for b in range(bands): self.AddStrip(pos,steps,band_width,step_length,touch_clearance) pos += wxPoint(0,band_width) TouchSliderWizard().register()