Cura/util/profile.py

   1 from __future__ import absolute_import
   2 from __future__ import division
   3
   4 import os, traceback, math, re, zlib, base64, time, sys, platform, glob, string, stat
   5 import cPickle as pickle
   6 if sys.version_info[0] < 3:
   7         import ConfigParser
   8 else:
   9         import configparser as ConfigParser
  10
  11 from Cura.util import resources
  12 from Cura.util import version
  13
  14 #########################################################
  15 ## Default settings when none are found.
  16 #########################################################
  17
  18 #Single place to store the defaults, so we have a consistent set of default settings.
  19 profileDefaultSettings = {
  20         'nozzle_size': '0.4',
  21         'layer_height': '0.2',
  22         'wall_thickness': '0.8',
  23         'solid_layer_thickness': '0.6',
  24         'fill_density': '20',
  25         'skirt_line_count': '1',
  26         'skirt_gap': '3.0',
  27         'print_speed': '50',
  28         'print_temperature': '220',
  29         'print_bed_temperature': '70',
  30         'support': 'None',
  31         'filament_diameter': '2.89',
  32         'filament_density': '1.00',
  33         'retraction_min_travel': '5.0',
  34         'retraction_enable': 'False',
  35         'retraction_speed': '40.0',
  36         'retraction_amount': '4.5',
  37         'retraction_extra': '0.0',
  38         'retract_on_jumps_only': 'True',
  39         'travel_speed': '150',
  40         'max_z_speed': '3.0',
  41         'bottom_layer_speed': '20',
  42         'cool_min_layer_time': '5',
  43         'fan_enabled': 'True',
  44         'fan_layer': '1',
  45         'fan_speed': '100',
  46         'fan_speed_max': '100',
  47         'model_matrix': '1,0,0,0,1,0,0,0,1',
  48         'extra_base_wall_thickness': '0.0',
  49         'sequence': 'Loops > Perimeter > Infill',
  50         'force_first_layer_sequence': 'True',
  51         'infill_type': 'Line',
  52         'solid_top': 'True',
  53         'fill_overlap': '15',
  54         'support_rate': '50',
  55         'support_distance': '0.5',
  56         'support_dual_extrusion': 'False',
  57         'joris': 'False',
  58         'enable_skin': 'False',
  59         'enable_raft': 'False',
  60         'cool_min_feedrate': '10',
  61         'bridge_speed': '100',
  62         'raft_margin': '5',
  63         'raft_base_material_amount': '100',
  64         'raft_interface_material_amount': '100',
  65         'bottom_thickness': '0.3',
  66         'hop_on_move': 'False',
  67         'plugin_config': '',
  68         'object_center_x': '-1',
  69         'object_center_y': '-1',
  70
  71         'gcode_extension': 'gcode',
  72         'alternative_center': '',
  73         'clear_z': '0.0',
  74         'extruder': '0',
  75 }
  76 alterationDefault = {
  77 #######################################################################################
  78         'start.gcode': """;Sliced {filename} at: {day} {date} {time}
  79 ;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
  80 ;Print time: {print_time}
  81 ;Filament used: {filament_amount}m {filament_weight}g
  82 ;Filament cost: {filament_cost}
  83 G21        ;metric values
  84 G90        ;absolute positioning
  85 M107       ;start with the fan off
  86
  87 G28 X0 Y0  ;move X/Y to min endstops
  88 G28 Z0     ;move Z to min endstops
  89 G92 X0 Y0 Z0 E0         ;reset software position to front/left/z=0.0
  90
  91 G1 Z15.0 F{max_z_speed} ;move the platform down 15mm
  92
  93 G92 E0                  ;zero the extruded length
  94 G1 F200 E3              ;extrude 3mm of feed stock
  95 G92 E0                  ;zero the extruded length again
  96 G1 F{travel_speed}
  97 """,
  98 #######################################################################################
  99         'end.gcode': """;End GCode
 100 M104 S0                     ;extruder heater off
 101 M140 S0                     ;heated bed heater off (if you have it)
 102
 103 G91                                    ;relative positioning
 104 G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
 105 G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more
 106 G28 X0 Y0                              ;move X/Y to min endstops, so the head is out of the way
 107
 108 M84                         ;steppers off
 109 G90                         ;absolute positioning
 110 """,
 111 #######################################################################################
 112         'support_start.gcode': '',
 113         'support_end.gcode': '',
 114         'cool_start.gcode': '',
 115         'cool_end.gcode': '',
 116         'replace.csv': '',
 117 #######################################################################################
 118         'nextobject.gcode': """;Move to next object on the platform. clear_z is the minimal z height we need to make sure we do not hit any objects.
 119 G92 E0
 120
 121 G91                                    ;relative positioning
 122 G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
 123 G1 Z+0.5 E-5 F{travel_speed}           ;move Z up a bit and retract filament even more
 124 G90                                    ;absolute positioning
 125
 126 G1 Z{clear_z} F{max_z_speed}
 127 G92 E0
 128 G1 X{object_center_x} Y{object_center_x} F{travel_speed}
 129 G1 F200 E6
 130 G92 E0
 131 """,
 132 #######################################################################################
 133         'switchExtruder.gcode': """;Switch between the current extruder and the next extruder, when printing with multiple extruders.
 134 G92 E0
 135 G1 E-15 F5000
 136 G92 E0
 137 T{extruder}
 138 G1 E15 F5000
 139 G92 E0
 140 """,
 141 }
 142 preferencesDefaultSettings = {
 143         'startMode': 'Simple',
 144         'lastFile': os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'resources', 'example', 'UltimakerRobot_support.stl')),
 145         'machine_width': '205',
 146         'machine_depth': '205',
 147         'machine_height': '200',
 148         'machine_type': 'unknown',
 149         'machine_center_is_zero': 'False',
 150         'ultimaker_extruder_upgrade': 'False',
 151         'has_heated_bed': 'False',
 152         'extruder_amount': '1',
 153         'extruder_offset_x1': '-22.0',
 154         'extruder_offset_y1': '0.0',
 155         'extruder_offset_x2': '0.0',
 156         'extruder_offset_y2': '0.0',
 157         'extruder_offset_x3': '0.0',
 158         'extruder_offset_y3': '0.0',
 159         'filament_density': '1300',
 160         'steps_per_e': '0',
 161         'serial_port': 'AUTO',
 162         'serial_port_auto': '',
 163         'serial_baud': 'AUTO',
 164         'serial_baud_auto': '',
 165         'slicer': 'Cura (Skeinforge based)',
 166         'save_profile': 'False',
 167         'filament_cost_kg': '0',
 168         'filament_cost_meter': '0',
 169         'sdpath': '',
 170         'sdshortnames': 'False',
 171         'check_for_updates': 'True',
 172
 173         'planner_always_autoplace': 'True',
 174         'extruder_head_size_min_x': '75.0',
 175         'extruder_head_size_min_y': '18.0',
 176         'extruder_head_size_max_x': '18.0',
 177         'extruder_head_size_max_y': '35.0',
 178         'extruder_head_size_height': '60.0',
 179
 180         'model_colour': '#72CB30',
 181         'model_colour2': '#CB3030',
 182         'model_colour3': '#DDD93C',
 183         'model_colour4': '#4550D3',
 184
 185         'window_maximized': 'False',
 186         'window_pos_x': '-1',
 187         'window_pos_y': '-1',
 188         'window_width': '-1',
 189         'window_height': '-1',
 190 }
 191
 192 #########################################################
 193 ## Profile and preferences functions
 194 #########################################################
 195
 196 ## Profile functions
 197 def getBasePath():
 198         if platform.system() == "Windows":
 199                 basePath = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
 200                 #If we have a frozen python install, we need to step out of the library.zip
 201                 if hasattr(sys, 'frozen'):
 202                         basePath = os.path.normpath(os.path.join(basePath, ".."))
 203         else:
 204                 basePath = os.path.expanduser('~/.cura/%s' % version.getVersion(False))
 205         if not os.path.isdir(basePath):
 206                 os.makedirs(basePath)
 207         return basePath
 208
 209 def getDefaultProfilePath():
 210         return os.path.join(getBasePath(), 'current_profile.ini')
 211
 212 def loadGlobalProfile(filename):
 213         #Read a configuration file as global config
 214         global globalProfileParser
 215         globalProfileParser = ConfigParser.ConfigParser()
 216         globalProfileParser.read(filename)
 217
 218 def resetGlobalProfile():
 219         #Read a configuration file as global config
 220         global globalProfileParser
 221         globalProfileParser = ConfigParser.ConfigParser()
 222
 223         if getPreference('machine_type') == 'ultimaker':
 224                 putProfileSetting('nozzle_size', '0.4')
 225                 if getPreference('ultimaker_extruder_upgrade') == 'True':
 226                         putProfileSetting('retraction_enable', 'True')
 227         else:
 228                 putProfileSetting('nozzle_size', '0.5')
 229
 230 def saveGlobalProfile(filename):
 231         #Save the current profile to an ini file
 232         globalProfileParser.write(open(filename, 'w'))
 233
 234 def loadGlobalProfileFromString(options):
 235         global globalProfileParser
 236         globalProfileParser = ConfigParser.ConfigParser()
 237         globalProfileParser.add_section('profile')
 238         globalProfileParser.add_section('alterations')
 239         options = base64.b64decode(options)
 240         options = zlib.decompress(options)
 241         (profileOpts, alt) = options.split('\f', 1)
 242         for option in profileOpts.split('\b'):
 243                 if len(option) > 0:
 244                         (key, value) = option.split('=', 1)
 245                         globalProfileParser.set('profile', key, value)
 246         for option in alt.split('\b'):
 247                 if len(option) > 0:
 248                         (key, value) = option.split('=', 1)
 249                         globalProfileParser.set('alterations', key, value)
 250
 251 def getGlobalProfileString():
 252         global globalProfileParser
 253         if not globals().has_key('globalProfileParser'):
 254                 loadGlobalProfile(getDefaultProfilePath())
 255
 256         p = []
 257         alt = []
 258         tempDone = []
 259         if globalProfileParser.has_section('profile'):
 260                 for key in globalProfileParser.options('profile'):
 261                         if key in tempOverride:
 262                                 p.append(key + "=" + tempOverride[key])
 263                                 tempDone.append(key)
 264                         else:
 265                                 p.append(key + "=" + globalProfileParser.get('profile', key))
 266         if globalProfileParser.has_section('alterations'):
 267                 for key in globalProfileParser.options('alterations'):
 268                         if key in tempOverride:
 269                                 p.append(key + "=" + tempOverride[key])
 270                                 tempDone.append(key)
 271                         else:
 272                                 alt.append(key + "=" + globalProfileParser.get('alterations', key))
 273         for key in tempOverride:
 274                 if key not in tempDone:
 275                         p.append(key + "=" + tempOverride[key])
 276         ret = '\b'.join(p) + '\f' + '\b'.join(alt)
 277         ret = base64.b64encode(zlib.compress(ret, 9))
 278         return ret
 279
 280 def getProfileSetting(name):
 281         if name in tempOverride:
 282                 return unicode(tempOverride[name], "utf-8")
 283         #Check if we have a configuration file loaded, else load the default.
 284         if not globals().has_key('globalProfileParser'):
 285                 loadGlobalProfile(getDefaultProfilePath())
 286         if not globalProfileParser.has_option('profile', name):
 287                 if name in profileDefaultSettings:
 288                         default = profileDefaultSettings[name]
 289                 else:
 290                         print("Missing default setting for: '" + name + "'")
 291                         profileDefaultSettings[name] = ''
 292                         default = ''
 293                 if not globalProfileParser.has_section('profile'):
 294                         globalProfileParser.add_section('profile')
 295                 globalProfileParser.set('profile', name, str(default))
 296                 #print(name + " not found in profile, so using default: " + str(default))
 297                 return default
 298         return globalProfileParser.get('profile', name)
 299
 300 def getProfileSettingFloat(name):
 301         try:
 302                 setting = getProfileSetting(name).replace(',', '.')
 303                 return float(eval(setting, {}, {}))
 304         except (ValueError, SyntaxError, TypeError):
 305                 return 0.0
 306
 307 def putProfileSetting(name, value):
 308         #Check if we have a configuration file loaded, else load the default.
 309         if not globals().has_key('globalProfileParser'):
 310                 loadGlobalProfile(getDefaultProfilePath())
 311         if not globalProfileParser.has_section('profile'):
 312                 globalProfileParser.add_section('profile')
 313         globalProfileParser.set('profile', name, str(value))
 314
 315 def isProfileSetting(name):
 316         if name in profileDefaultSettings:
 317                 return True
 318         return False
 319
 320 ## Preferences functions
 321 global globalPreferenceParser
 322 globalPreferenceParser = None
 323
 324 def getPreferencePath():
 325         return os.path.join(getBasePath(), 'preferences.ini')
 326
 327 def getPreferenceFloat(name):
 328         try:
 329                 setting = getPreference(name).replace(',', '.')
 330                 return float(eval(setting, {}, {}))
 331         except (ValueError, SyntaxError, TypeError):
 332                 return 0.0
 333
 334 def getPreferenceColour(name):
 335         colorString = getPreference(name)
 336         return [float(int(colorString[1:3], 16)) / 255, float(int(colorString[3:5], 16)) / 255, float(int(colorString[5:7], 16)) / 255, 1.0]
 337
 338 def getPreference(name):
 339         if name in tempOverride:
 340                 return unicode(tempOverride[name])
 341         global globalPreferenceParser
 342         if globalPreferenceParser is None:
 343                 globalPreferenceParser = ConfigParser.ConfigParser()
 344                 globalPreferenceParser.read(getPreferencePath())
 345         if not globalPreferenceParser.has_option('preference', name):
 346                 if name in preferencesDefaultSettings:
 347                         default = preferencesDefaultSettings[name]
 348                 else:
 349                         print("Missing default setting for: '" + name + "'")
 350                         preferencesDefaultSettings[name] = ''
 351                         default = ''
 352                 if not globalPreferenceParser.has_section('preference'):
 353                         globalPreferenceParser.add_section('preference')
 354                 globalPreferenceParser.set('preference', name, str(default))
 355                 #print(name + " not found in preferences, so using default: " + str(default))
 356                 return default
 357         return unicode(globalPreferenceParser.get('preference', name), "utf-8")
 358
 359 def putPreference(name, value):
 360         #Check if we have a configuration file loaded, else load the default.
 361         global globalPreferenceParser
 362         if globalPreferenceParser == None:
 363                 globalPreferenceParser = ConfigParser.ConfigParser()
 364                 globalPreferenceParser.read(getPreferencePath())
 365         if not globalPreferenceParser.has_section('preference'):
 366                 globalPreferenceParser.add_section('preference')
 367         globalPreferenceParser.set('preference', name, unicode(value).encode("utf-8"))
 368         globalPreferenceParser.write(open(getPreferencePath(), 'w'))
 369
 370 def isPreference(name):
 371         if name in preferencesDefaultSettings:
 372                 return True
 373         return False
 374
 375 ## Temp overrides for multi-extruder slicing and the project planner.
 376 tempOverride = {}
 377 def setTempOverride(name, value):
 378         tempOverride[name] = unicode(value).encode("utf-8")
 379 def clearTempOverride(name):
 380         del tempOverride[name]
 381 def resetTempOverride():
 382         tempOverride.clear()
 383
 384 #########################################################
 385 ## Utility functions to calculate common profile values
 386 #########################################################
 387 def calculateEdgeWidth():
 388         wallThickness = getProfileSettingFloat('wall_thickness')
 389         nozzleSize = getProfileSettingFloat('nozzle_size')
 390
 391         if wallThickness < nozzleSize:
 392                 return wallThickness
 393
 394         lineCount = int(wallThickness / nozzleSize + 0.0001)
 395         lineWidth = wallThickness / lineCount
 396         lineWidthAlt = wallThickness / (lineCount + 1)
 397         if lineWidth > nozzleSize * 1.5:
 398                 return lineWidthAlt
 399         return lineWidth
 400
 401 def calculateLineCount():
 402         wallThickness = getProfileSettingFloat('wall_thickness')
 403         nozzleSize = getProfileSettingFloat('nozzle_size')
 404
 405         if wallThickness < nozzleSize:
 406                 return 1
 407
 408         lineCount = int(wallThickness / nozzleSize + 0.0001)
 409         lineWidth = wallThickness / lineCount
 410         lineWidthAlt = wallThickness / (lineCount + 1)
 411         if lineWidth > nozzleSize * 1.5:
 412                 return lineCount + 1
 413         return lineCount
 414
 415 def calculateSolidLayerCount():
 416         layerHeight = getProfileSettingFloat('layer_height')
 417         solidThickness = getProfileSettingFloat('solid_layer_thickness')
 418         return int(math.ceil(solidThickness / layerHeight - 0.0001))
 419
 420 def getMachineCenterCoords():
 421         if getPreference('machine_center_is_zero') == 'True':
 422                 return [0, 0]
 423         return [getPreferenceFloat('machine_width') / 2, getPreferenceFloat('machine_depth') / 2]
 424
 425 def getObjectMatrix():
 426         return map(float, getProfileSetting('model_matrix').split(','))
 427
 428 #########################################################
 429 ## Alteration file functions
 430 #########################################################
 431 def replaceTagMatch(m):
 432         pre = m.group(1)
 433         tag = m.group(2)
 434         if tag == 'time':
 435                 return pre + time.strftime('%H:%M:%S').encode('utf-8', 'replace')
 436         if tag == 'date':
 437                 return pre + time.strftime('%d %b %Y').encode('utf-8', 'replace')
 438         if tag == 'day':
 439                 return pre + time.strftime('%a').encode('utf-8', 'replace')
 440         if tag == 'print_time':
 441                 return pre + '#P_TIME#'
 442         if tag == 'filament_amount':
 443                 return pre + '#F_AMNT#'
 444         if tag == 'filament_weight':
 445                 return pre + '#F_WGHT#'
 446         if tag == 'filament_cost':
 447                 return pre + '#F_COST#'
 448         if pre == 'F' and tag in ['print_speed', 'retraction_speed', 'travel_speed', 'max_z_speed', 'bottom_layer_speed', 'cool_min_feedrate']:
 449                 f = getProfileSettingFloat(tag) * 60
 450         elif isProfileSetting(tag):
 451                 f = getProfileSettingFloat(tag)
 452         elif isPreference(tag):
 453                 f = getProfileSettingFloat(tag)
 454         else:
 455                 return '%s?%s?' % (pre, tag)
 456         if (f % 1) == 0:
 457                 return pre + str(int(f))
 458         return pre + str(f)
 459
 460 def replaceGCodeTags(filename, gcodeInt):
 461         f = open(filename, 'r+')
 462         data = f.read(2048)
 463         data = data.replace('#P_TIME#', ('%5d:%02d' % (int(gcodeInt.totalMoveTimeMinute / 60), int(gcodeInt.totalMoveTimeMinute % 60)))[-8:])
 464         data = data.replace('#F_AMNT#', ('%8.2f' % (gcodeInt.extrusionAmount / 1000))[-8:])
 465         data = data.replace('#F_WGHT#', ('%8.2f' % (gcodeInt.calculateWeight() * 1000))[-8:])
 466         cost = gcodeInt.calculateCost()
 467         if cost is None:
 468                 cost = 'Unknown'
 469         data = data.replace('#F_COST#', ('%8s' % (cost.split(' ')[0]))[-8:])
 470         f.seek(0)
 471         f.write(data)
 472         f.close()
 473
 474 ### Get aleration raw contents. (Used internally in Cura)
 475 def getAlterationFile(filename):
 476         #Check if we have a configuration file loaded, else load the default.
 477         if not globals().has_key('globalProfileParser'):
 478                 loadGlobalProfile(getDefaultProfilePath())
 479
 480         if not globalProfileParser.has_option('alterations', filename):
 481                 if filename in alterationDefault:
 482                         default = alterationDefault[filename]
 483                 else:
 484                         print("Missing default alteration for: '" + filename + "'")
 485                         alterationDefault[filename] = ''
 486                         default = ''
 487                 if not globalProfileParser.has_section('alterations'):
 488                         globalProfileParser.add_section('alterations')
 489                 #print("Using default for: %s" % (filename))
 490                 globalProfileParser.set('alterations', filename, default)
 491         return unicode(globalProfileParser.get('alterations', filename), "utf-8")
 492
 493 def setAlterationFile(filename, value):
 494         #Check if we have a configuration file loaded, else load the default.
 495         if not globals().has_key('globalProfileParser'):
 496                 loadGlobalProfile(getDefaultProfilePath())
 497         if not globalProfileParser.has_section('alterations'):
 498                 globalProfileParser.add_section('alterations')
 499         globalProfileParser.set('alterations', filename, value.encode("utf-8"))
 500         saveGlobalProfile(getDefaultProfilePath())
 501
 502 ### Get the alteration file for output. (Used by Skeinforge)
 503 def getAlterationFileContents(filename):
 504         prefix = ''
 505         postfix = ''
 506         alterationContents = getAlterationFile(filename)
 507         if filename == 'start.gcode':
 508                 #For the start code, hack the temperature and the steps per E value into it. So the temperature is reached before the start code extrusion.
 509                 #We also set our steps per E here, if configured.
 510                 eSteps = getPreferenceFloat('steps_per_e')
 511                 if eSteps > 0:
 512                         prefix += 'M92 E%f\n' % (eSteps)
 513                 temp = getProfileSettingFloat('print_temperature')
 514                 bedTemp = 0
 515                 if getPreference('has_heated_bed') == 'True':
 516                         bedTemp = getProfileSettingFloat('print_bed_temperature')
 517
 518                 if bedTemp > 0 and not '{print_bed_temperature}' in alterationContents:
 519                         prefix += 'M140 S%f\n' % (bedTemp)
 520                 if temp > 0 and not '{print_temperature}' in alterationContents:
 521                         prefix += 'M109 S%f\n' % (temp)
 522                 if bedTemp > 0 and not '{print_bed_temperature}' in alterationContents:
 523                         prefix += 'M190 S%f\n' % (bedTemp)
 524         elif filename == 'end.gcode':
 525                 #Append the profile string to the end of the GCode, so we can load it from the GCode file later.
 526                 postfix = ';CURA_PROFILE_STRING:%s\n' % (getGlobalProfileString())
 527         elif filename == 'replace.csv':
 528                 #Always remove the extruder on/off M codes. These are no longer needed in 5D printing.
 529                 prefix = 'M101\nM103\n'
 530         elif filename == 'support_start.gcode' or filename == 'support_end.gcode':
 531                 #Add support start/end code
 532                 if getProfileSetting('support_dual_extrusion') == 'True' and int(getPreference('extruder_amount')) > 1:
 533                         if filename == 'support_start.gcode':
 534                                 setTempOverride('extruder', '1')
 535                         else:
 536                                 setTempOverride('extruder', '0')
 537                         alterationContents = getAlterationFileContents('switchExtruder.gcode')
 538                         clearTempOverride('extruder')
 539                 else:
 540                         alterationContents = ''
 541         return unicode(prefix + re.sub("(.)\{([^\}]*)\}", replaceTagMatch, alterationContents).rstrip() + '\n' + postfix).strip().encode('utf-8') + '\n'
 542
 543 ###### PLUGIN #####
 544
 545 def getPluginConfig():
 546         try:
 547                 return pickle.loads(getProfileSetting('plugin_config'))
 548         except:
 549                 return []
 550
 551 def setPluginConfig(config):
 552         putProfileSetting('plugin_config', pickle.dumps(config))
 553
 554 def getPluginBasePaths():
 555         ret = []
 556         if platform.system() != "Windows":
 557                 ret.append(os.path.expanduser('~/.cura/plugins/'))
 558         if platform.system() == "Darwin" and hasattr(sys, 'frozen'):
 559                 ret.append(os.path.normpath(os.path.join(resources.resourceBasePath, "Cura/plugins")))
 560         else:
 561                 ret.append(os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'plugins')))
 562         return ret
 563
 564 def getPluginList():
 565         ret = []
 566         for basePath in getPluginBasePaths():
 567                 for filename in glob.glob(os.path.join(basePath, '*.py')):
 568                         filename = os.path.basename(filename)
 569                         if filename.startswith('_'):
 570                                 continue
 571                         with open(os.path.join(basePath, filename), "r") as f:
 572                                 item = {'filename': filename, 'name': None, 'info': None, 'type': None, 'params': []}
 573                                 for line in f:
 574                                         line = line.strip()
 575                                         if not line.startswith('#'):
 576                                                 break
 577                                         line = line[1:].split(':', 1)
 578                                         if len(line) != 2:
 579                                                 continue
 580                                         if line[0].upper() == 'NAME':
 581                                                 item['name'] = line[1].strip()
 582                                         elif line[0].upper() == 'INFO':
 583                                                 item['info'] = line[1].strip()
 584                                         elif line[0].upper() == 'TYPE':
 585                                                 item['type'] = line[1].strip()
 586                                         elif line[0].upper() == 'DEPEND':
 587                                                 pass
 588                                         elif line[0].upper() == 'PARAM':
 589                                                 m = re.match('([a-zA-Z][a-zA-Z0-9_]*)\(([a-zA-Z_]*)(?::([^\)]*))?\) +(.*)', line[1].strip())
 590                                                 if m is not None:
 591                                                         item['params'].append({'name': m.group(1), 'type': m.group(2), 'default': m.group(3), 'description': m.group(4)})
 592                                         else:
 593                                                 print "Unknown item in effect meta data: %s %s" % (line[0], line[1])
 594                                 if item['name'] != None and item['type'] == 'postprocess':
 595                                         ret.append(item)
 596         return ret
 597
 598 def runPostProcessingPlugins(gcodefilename):
 599         pluginConfigList = getPluginConfig()
 600         pluginList = getPluginList()
 601
 602         for pluginConfig in pluginConfigList:
 603                 plugin = None
 604                 for pluginTest in pluginList:
 605                         if pluginTest['filename'] == pluginConfig['filename']:
 606                                 plugin = pluginTest
 607                 if plugin is None:
 608                         continue
 609
 610                 pythonFile = None
 611                 for basePath in getPluginBasePaths():
 612                         testFilename = os.path.join(basePath, pluginConfig['filename'])
 613                         if os.path.isfile(testFilename):
 614                                 pythonFile = testFilename
 615                 if pythonFile is None:
 616                         continue
 617
 618                 locals = {'filename': gcodefilename}
 619                 for param in plugin['params']:
 620                         value = param['default']
 621                         if param['name'] in pluginConfig['params']:
 622                                 value = pluginConfig['params'][param['name']]
 623
 624                         if param['type'] == 'float':
 625                                 try:
 626                                         value = float(value)
 627                                 except:
 628                                         value = float(param['default'])
 629
 630                         locals[param['name']] = value
 631                 try:
 632                         execfile(pythonFile, locals)
 633                 except:
 634                         locationInfo = traceback.extract_tb(sys.exc_info()[2])[-1]
 635                         return "%s: '%s' @ %s:%s:%d" % (str(sys.exc_info()[0].__name__), str(sys.exc_info()[1]), os.path.basename(locationInfo[0]), locationInfo[2], locationInfo[1])
 636         return None
 637
 638 def getSDcardDrives():
 639         drives = ['']
 640         if platform.system() == "Windows":
 641                 from ctypes import windll
 642                 bitmask = windll.kernel32.GetLogicalDrives()
 643                 for letter in string.uppercase:
 644                         if bitmask & 1:
 645                                 drives.append(letter + ':/')
 646                         bitmask >>= 1
 647         if platform.system() == "Darwin":
 648                 drives = []
 649                 for volume in glob.glob('/Volumes/*'):
 650                         if stat.S_ISLNK(os.lstat(volume).st_mode):
 651                                 continue
 652                         drives.append(volume)
 653         return drives