323 lines
9.4 KiB
Python
323 lines
9.4 KiB
Python
# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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# MA 02110-1301, USA.
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#
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import pcbnew
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import math
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import FootprintWizardDrawingAids
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class FootprintWizardParameterManager:
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"""
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Functions for helpfully managing parameters to a KiCAD Footprint
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Wizard.
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Abstracts away from whatever structure is used by pcbnew's footprint
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wizard class
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"""
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def __init__(self):
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self.parameters = {}
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self.GenerateParameterList()
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def GenerateParameterList(self):
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"""
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Construct parameters here, or leave out to have no parameters
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"""
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pass
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def CheckParameters(self):
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"""
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Implement this to make checks on parameter values, filling
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parameter_errors (or using the checker routines)
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Subclasses can implment their own and override the parent
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defaults and add new ones
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"""
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pass
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uMM = 1
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uMils = 2
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uNatural = 3
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uBool = 4
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uString = 5
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def AddParam(self, section, param, unit, default, hint=''):
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"""
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Add a parameter with some properties.
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TODO: Hints are not supported, as there is as yet nowhere to
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put them in the KiCAD interface
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"""
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error = ""
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val = None
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if unit == self.uMM:
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val = pcbnew.FromMM(default)
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elif unit == self.uMils:
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val = pcbnew.FromMils(default)
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elif unit == self.uNatural:
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val = default
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elif unit == self.uString:
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val = str(default)
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elif unit == self.uBool:
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val = "True" if default else "False" # ugly stringing
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else:
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error = "Warning: Unknown unit type: %s" % unit
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return error
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if unit in [self.uNatural, self.uBool, self.uString]:
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param = "*%s" % param # star prefix for natural
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if section not in self.parameters:
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self.parameters[section] = {}
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self.parameters[section][param] = val
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return error
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def _PrintParameterTable(self):
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"""
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Pretty-print the parameters we have
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"""
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message = ""
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for name, section in self.parameters.iteritems():
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message += " %s:" % name
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for key, value in section.iteritems():
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unit = ""
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if ((type(value) is int or type(value) is float)
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and not "*" in key):
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unit = "mm"
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if "*" in key:
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key = key[1:]
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else:
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value = pcbnew.ToMM(value)
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message += " %s: %s%s\n" % (key, value, unit)
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return message
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def _ParametersHaveErrors(self):
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"""
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Return true if we discovered errors during parameter processing
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"""
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for name, section in self.parameter_errors.iteritems():
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for k, v in section.iteritems():
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if v:
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return True
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return False
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def _PrintParameterErrors(self):
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"""
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Pretty-print parameters with errors
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"""
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errors = ""
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for name, section in self.parameter_errors.iteritems():
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printed_section = False
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for key, value in section.iteritems():
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if value:
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if not printed_section:
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errors += " %s:" % name
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errors += " %s: %s (have %s)\n" % (
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key, value, self.parameters[name][key])
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return errors
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def ProcessParameters(self):
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"""
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Make sure the parameters we have meet whatever expectations the
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footprint wizard has of them
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"""
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self.ClearErrors()
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self.CheckParameters()
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if self._ParametersHaveErrors():
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return False
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return True
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#################################################################
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# PARAMETER CHECKERS
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#################################################################
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def CheckParamInt(self, section, param, min_value=1,
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max_value=None, is_multiple_of=1):
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"""
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Make sure a parameter can be made into an int, and enforce
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limits if required
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"""
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try:
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self.parameters[section][param] = (
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int(self.parameters[section][param]))
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except ValueError:
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self.parameter_errors[section][param] = (
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"Must be a valid integer")
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return
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if min_value is not None and (
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self.parameters[section][param] < min_value):
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self.parameter_errors[section][param] = (
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"Must be greater than or equal to %d" % (min_value))
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return
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if max_value is not None and (
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self.parameters[section][param] > min_value):
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self.parameter_errors[section][param] = (
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"Must be less than or equal to %d" % (max_value))
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return
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if is_multiple_of > 1 and (
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self.parameters[section][param] % is_multiple_of) > 0:
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self.parameter_errors[section][param] = (
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"Must be a multiple of %d" % is_multiple_of)
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return
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return
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def CheckParamBool(self, section, param):
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"""
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Make sure a parameter looks like a boolean, convert to native
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boolean type if so
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"""
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if str(self.parameters[section][param]).lower() in [
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"true", "t", "y", "yes", "on", "1", "1.0"]:
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self.parameters[section][param] = True
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return
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elif str(self.parameters[section][param]).lower() in [
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"false", "f", "n", "no", "off", "0", "0.0"]:
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self.parameters[section][param] = False
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return
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self.parameter_errors[section][param] = "Must be boolean (true/false)"
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return
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class HelpfulFootprintWizardPlugin(pcbnew.FootprintWizardPlugin,
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FootprintWizardParameterManager):
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"""
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A class to simplify many aspects of footprint creation, leaving only
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the foot-print specific routines to the wizards themselves
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Generally, you need to implement:
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GetReference()
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GetValue()
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GenerateParameterList()
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CheckParameters()
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BuildThisFootprint()
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GetName()
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GetDescription()
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"""
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def __init__(self):
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pcbnew.FootprintWizardPlugin.__init__(self)
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FootprintWizardParameterManager.__init__(self)
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self.name = self.GetName()
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self.decription = self.GetDescription()
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self.image = self.GetImage()
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def GetValue(self):
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raise NotImplementedError
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def GetReferencePrefix(self):
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return "U" # footprints needing wizards of often ICs
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def GetImage(self):
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return ""
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def GetTextSize(self):
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"""
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IPC nominal
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"""
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return pcbnew.FromMM(1.2)
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def GetTextThickness(self):
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"""
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Thicker than IPC guidelines (10% of text height = 0.12mm)
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as 5 wires/mm is a common silk screen limitation
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"""
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return pcbnew.FromMM(0.2)
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def SetModule3DModel(self):
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"""
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Set a 3D model for the module
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Default is to do nothing, you need to implement this if you have
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a model to set
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FIXME: This doesn't seem to be enabled yet?
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"""
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pass
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def BuildThisFootprint(self):
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"""
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Draw the footprint.
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This is specific to each footprint class, you need to implment
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this to draw what you want
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"""
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raise NotImplementedError
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def BuildFootprint( self ):
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"""
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Actually make the footprint. We defer all but the setup to
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the implementing class
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"""
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self.buildmessages = ""
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self.module = pcbnew.MODULE(None) # create a new module
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# do it first, so if we return early, we don't segfault KiCad
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if not self.ProcessParameters():
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self.buildmessages = "Cannot build footprint: Parameters have errors:\n"
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self.buildmessages += self._PrintParameterErrors()
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return
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self.buildmessages = ("Building new %s footprint with the following parameters:\n"
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% self.name)
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self.buildmessages += self._PrintParameterTable()
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self.draw = FootprintWizardDrawingAids.FootprintWizardDrawingAids(
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self.module)
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self.module.SetValue(self.GetValue())
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self.module.SetReference("%s**" % self.GetReferencePrefix())
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fpid = pcbnew.FPID(self.module.GetValue()) # the name in library
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self.module.SetFPID(fpid)
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self.SetModule3DModel() # add a 3d module if specified
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thick = self.GetTextThickness()
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self.module.Reference().SetThickness(thick)
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self.module.Value().SetThickness(thick)
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self.BuildThisFootprint() # implementer's build function
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return
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