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         'object_sink': '0.0',
  71
  72         'gcode_extension': 'gcode',
  73         'alternative_center': '',
  74         'clear_z': '0.0',
  75         'extruder': '0',
  76 }
  77 alterationDefault = {
  78 #######################################################################################
  79         'start.gcode': """;Sliced {filename} at: {day} {date} {time}
  80 ;Basic settings: Layer height: {layer_height} Walls: {wall_thickness} Fill: {fill_density}
  81 ;Print time: {print_time}
  82 ;Filament used: {filament_amount}m {filament_weight}g
  83 ;Filament cost: {filament_cost}
  84 G21        ;metric values
  85 G90        ;absolute positioning
  86 M107       ;start with the fan off
  87
  88 G28 X0 Y0  ;move X/Y to min endstops
  89 G28 Z0     ;move Z to min endstops
  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 M117 Printing...
  98 """,
  99 #######################################################################################
 100         'end.gcode': """;End GCode
 101 M104 S0                     ;extruder heater off
 102 M140 S0                     ;heated bed heater off (if you have it)
 103
 104 G91                                    ;relative positioning
 105 G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
 106 G1 Z+0.5 E-5 X-20 Y-20 F{travel_speed} ;move Z up a bit and retract filament even more
 107 G28 X0 Y0                              ;move X/Y to min endstops, so the head is out of the way
 108
 109 M84                         ;steppers off
 110 G90                         ;absolute positioning
 111 """,
 112 #######################################################################################
 113         'support_start.gcode': '',
 114         'support_end.gcode': '',
 115         'cool_start.gcode': '',
 116         'cool_end.gcode': '',
 117         'replace.csv': '',
 118 #######################################################################################
 119         '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.
 120 G92 E0
 121
 122 G91                                    ;relative positioning
 123 G1 E-1 F300                            ;retract the filament a bit before lifting the nozzle, to release some of the pressure
 124 G1 Z+0.5 E-5 F{travel_speed}           ;move Z up a bit and retract filament even more
 125 G90                                    ;absolute positioning
 126
 127 G1 Z{clear_z} F{max_z_speed}
 128 G92 E0
 129 G1 X{object_center_x} Y{object_center_y} F{travel_speed}
 130 G1 F200 E6
 131 G92 E0
 132 """,
 133 #######################################################################################
 134         'switchExtruder.gcode': """;Switch between the current extruder and the next extruder, when printing with multiple extruders.
 135 G92 E0
 136 G1 E-15 F5000
 137 G92 E0
 138 T{extruder}
 139 G1 E15 F5000
 140 G92 E0
 141 """,
 142 }
 143 preferencesDefaultSettings = {
 144         'startMode': 'Simple',
 145         'lastFile': os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'resources', 'example', 'UltimakerRobot_support.stl')),
 146         'machine_width': '205',
 147         'machine_depth': '205',
 148         'machine_height': '200',
 149         'machine_type': 'unknown',
 150         'machine_center_is_zero': 'False',
 151         'ultimaker_extruder_upgrade': 'False',
 152         'has_heated_bed': 'False',
 153         'reprap_name': 'RepRap',
 154         'extruder_amount': '1',
 155         'extruder_offset_x1': '-22.0',
 156         'extruder_offset_y1': '0.0',
 157         'extruder_offset_x2': '0.0',
 158         'extruder_offset_y2': '0.0',
 159         'extruder_offset_x3': '0.0',
 160         'extruder_offset_y3': '0.0',
 161         'filament_density': '1300',
 162         'steps_per_e': '0',
 163         'serial_port': 'AUTO',
 164         'serial_port_auto': '',
 165         'serial_baud': 'AUTO',
 166         'serial_baud_auto': '',
 167         'slicer': 'Cura (Skeinforge based)',
 168         'save_profile': 'False',
 169         'filament_cost_kg': '0',
 170         'filament_cost_meter': '0',
 171         'sdpath': '',
 172         'sdshortnames': 'False',
 173         'check_for_updates': 'True',
 174         'submit_slice_information': 'False',
 175
 176         'planner_always_autoplace': 'True',
 177         'extruder_head_size_min_x': '75.0',
 178         'extruder_head_size_min_y': '18.0',
 179         'extruder_head_size_max_x': '18.0',
 180         'extruder_head_size_max_y': '35.0',
 181         'extruder_head_size_height': '60.0',
 182
 183         'model_colour': '#7AB645',
 184         'model_colour2': '#CB3030',
 185         'model_colour3': '#DDD93C',
 186         'model_colour4': '#4550D3',
 187
 188         'window_maximized': 'False',
 189         'window_pos_x': '-1',
 190         'window_pos_y': '-1',
 191         'window_width': '-1',
 192         'window_height': '-1',
 193         'window_normal_sash': '320',
 194 }
 195
 196 #########################################################
 197 ## Profile and preferences functions
 198 #########################################################
 199
 200 ## Profile functions
 201 def getBasePath():
 202         if platform.system() == "Windows":
 203                 basePath = os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), ".."))
 204                 #If we have a frozen python install, we need to step out of the library.zip
 205                 if hasattr(sys, 'frozen'):
 206                         basePath = os.path.normpath(os.path.join(basePath, ".."))
 207         else:
 208                 basePath = os.path.expanduser('~/.cura/%s' % version.getVersion(False))
 209         if not os.path.isdir(basePath):
 210                 os.makedirs(basePath)
 211         return basePath
 212
 213 def getDefaultProfilePath():
 214         return os.path.join(getBasePath(), 'current_profile.ini')
 215
 216 def loadGlobalProfile(filename):
 217         #Read a configuration file as global config
 218         global globalProfileParser
 219         globalProfileParser = ConfigParser.ConfigParser()
 220         try:
 221                 globalProfileParser.read(filename)
 222         except ConfigParser.ParsingError:
 223                 pass
 224
 225 def resetGlobalProfile():
 226         #Read a configuration file as global config
 227         global globalProfileParser
 228         globalProfileParser = ConfigParser.ConfigParser()
 229
 230         if getPreference('machine_type') == 'ultimaker':
 231                 putProfileSetting('nozzle_size', '0.4')
 232                 if getPreference('ultimaker_extruder_upgrade') == 'True':
 233                         putProfileSetting('retraction_enable', 'True')
 234         else:
 235                 putProfileSetting('nozzle_size', '0.5')
 236
 237 def saveGlobalProfile(filename):
 238         #Save the current profile to an ini file
 239         globalProfileParser.write(open(filename, 'w'))
 240
 241 def loadGlobalProfileFromString(options):
 242         global globalProfileParser
 243         globalProfileParser = ConfigParser.ConfigParser()
 244         globalProfileParser.add_section('profile')
 245         globalProfileParser.add_section('alterations')
 246         options = base64.b64decode(options)
 247         options = zlib.decompress(options)
 248         (profileOpts, alt) = options.split('\f', 1)
 249         for option in profileOpts.split('\b'):
 250                 if len(option) > 0:
 251                         (key, value) = option.split('=', 1)
 252                         globalProfileParser.set('profile', key, value)
 253         for option in alt.split('\b'):
 254                 if len(option) > 0:
 255                         (key, value) = option.split('=', 1)
 256                         globalProfileParser.set('alterations', key, value)
 257
 258 def getGlobalProfileString():
 259         global globalProfileParser
 260         if not globals().has_key('globalProfileParser'):
 261                 loadGlobalProfile(getDefaultProfilePath())
 262
 263         p = []
 264         alt = []
 265         tempDone = []
 266         if globalProfileParser.has_section('profile'):
 267                 for key in globalProfileParser.options('profile'):
 268                         if key in tempOverride:
 269                                 p.append(key + "=" + tempOverride[key])
 270                                 tempDone.append(key)
 271                         else:
 272                                 p.append(key + "=" + globalProfileParser.get('profile', key))
 273         if globalProfileParser.has_section('alterations'):
 274                 for key in globalProfileParser.options('alterations'):
 275                         if key in tempOverride:
 276                                 p.append(key + "=" + tempOverride[key])
 277                                 tempDone.append(key)
 278                         else:
 279                                 alt.append(key + "=" + globalProfileParser.get('alterations', key))
 280         for key in tempOverride:
 281                 if key not in tempDone:
 282                         p.append(key + "=" + tempOverride[key])
 283         ret = '\b'.join(p) + '\f' + '\b'.join(alt)
 284         ret = base64.b64encode(zlib.compress(ret, 9))
 285         return ret
 286
 287 def getProfileSetting(name):
 288         if name in tempOverride:
 289                 return unicode(tempOverride[name], "utf-8")
 290         #Check if we have a configuration file loaded, else load the default.
 291         if not globals().has_key('globalProfileParser'):
 292                 loadGlobalProfile(getDefaultProfilePath())
 293         if not globalProfileParser.has_option('profile', name):
 294                 if name in profileDefaultSettings:
 295                         default = profileDefaultSettings[name]
 296                 else:
 297                         print("Missing default setting for: '" + name + "'")
 298                         profileDefaultSettings[name] = ''
 299                         default = ''
 300                 if not globalProfileParser.has_section('profile'):
 301                         globalProfileParser.add_section('profile')
 302                 globalProfileParser.set('profile', name, str(default))
 303                 #print(name + " not found in profile, so using default: " + str(default))
 304                 return default
 305         return globalProfileParser.get('profile', name)
 306
 307 def getProfileSettingFloat(name):
 308         try:
 309                 setting = getProfileSetting(name).replace(',', '.')
 310                 return float(eval(setting, {}, {}))
 311         except (ValueError, SyntaxError, TypeError):
 312                 return 0.0
 313
 314 def putProfileSetting(name, value):
 315         #Check if we have a configuration file loaded, else load the default.
 316         if not globals().has_key('globalProfileParser'):
 317                 loadGlobalProfile(getDefaultProfilePath())
 318         if not globalProfileParser.has_section('profile'):
 319                 globalProfileParser.add_section('profile')
 320         globalProfileParser.set('profile', name, str(value))
 321
 322 def isProfileSetting(name):
 323         if name in profileDefaultSettings:
 324                 return True
 325         return False
 326
 327 ## Preferences functions
 328 global globalPreferenceParser
 329 globalPreferenceParser = None
 330
 331 def getPreferencePath():
 332         return os.path.join(getBasePath(), 'preferences.ini')
 333
 334 def getPreferenceFloat(name):
 335         try:
 336                 setting = getPreference(name).replace(',', '.')
 337                 return float(eval(setting, {}, {}))
 338         except (ValueError, SyntaxError, TypeError):
 339                 return 0.0
 340
 341 def getPreferenceColour(name):
 342         colorString = getPreference(name)
 343         return [float(int(colorString[1:3], 16)) / 255, float(int(colorString[3:5], 16)) / 255, float(int(colorString[5:7], 16)) / 255, 1.0]
 344
 345 def getPreference(name):
 346         if name in tempOverride:
 347                 return unicode(tempOverride[name])
 348         global globalPreferenceParser
 349         if globalPreferenceParser is None:
 350                 globalPreferenceParser = ConfigParser.ConfigParser()
 351                 try:
 352                         globalPreferenceParser.read(getPreferencePath())
 353                 except ConfigParser.ParsingError:
 354                         pass
 355         if not globalPreferenceParser.has_option('preference', name):
 356                 if name in preferencesDefaultSettings:
 357                         default = preferencesDefaultSettings[name]
 358                 else:
 359                         print("Missing default setting for: '" + name + "'")
 360                         preferencesDefaultSettings[name] = ''
 361                         default = ''
 362                 if not globalPreferenceParser.has_section('preference'):
 363                         globalPreferenceParser.add_section('preference')
 364                 globalPreferenceParser.set('preference', name, str(default))
 365                 #print(name + " not found in preferences, so using default: " + str(default))
 366                 return default
 367         return unicode(globalPreferenceParser.get('preference', name), "utf-8")
 368
 369 def putPreference(name, value):
 370         #Check if we have a configuration file loaded, else load the default.
 371         global globalPreferenceParser
 372         if globalPreferenceParser == None:
 373                 globalPreferenceParser = ConfigParser.ConfigParser()
 374                 try:
 375                         globalPreferenceParser.read(getPreferencePath())
 376                 except ConfigParser.ParsingError:
 377                         pass
 378         if not globalPreferenceParser.has_section('preference'):
 379                 globalPreferenceParser.add_section('preference')
 380         globalPreferenceParser.set('preference', name, unicode(value).encode("utf-8"))
 381         globalPreferenceParser.write(open(getPreferencePath(), 'w'))
 382
 383 def isPreference(name):
 384         if name in preferencesDefaultSettings:
 385                 return True
 386         return False
 387
 388 ## Temp overrides for multi-extruder slicing and the project planner.
 389 tempOverride = {}
 390 def setTempOverride(name, value):
 391         tempOverride[name] = unicode(value).encode("utf-8")
 392 def clearTempOverride(name):
 393         del tempOverride[name]
 394 def resetTempOverride():
 395         tempOverride.clear()
 396
 397 #########################################################
 398 ## Utility functions to calculate common profile values
 399 #########################################################
 400 def calculateEdgeWidth():
 401         wallThickness = getProfileSettingFloat('wall_thickness')
 402         nozzleSize = getProfileSettingFloat('nozzle_size')
 403
 404         if wallThickness < nozzleSize:
 405                 return wallThickness
 406
 407         lineCount = int(wallThickness / nozzleSize + 0.0001)
 408         lineWidth = wallThickness / lineCount
 409         lineWidthAlt = wallThickness / (lineCount + 1)
 410         if lineWidth > nozzleSize * 1.5:
 411                 return lineWidthAlt
 412         return lineWidth
 413
 414 def calculateLineCount():
 415         wallThickness = getProfileSettingFloat('wall_thickness')
 416         nozzleSize = getProfileSettingFloat('nozzle_size')
 417
 418         if wallThickness < nozzleSize:
 419                 return 1
 420
 421         lineCount = int(wallThickness / nozzleSize + 0.0001)
 422         lineWidth = wallThickness / lineCount
 423         lineWidthAlt = wallThickness / (lineCount + 1)
 424         if lineWidth > nozzleSize * 1.5:
 425                 return lineCount + 1
 426         return lineCount
 427
 428 def calculateSolidLayerCount():
 429         layerHeight = getProfileSettingFloat('layer_height')
 430         solidThickness = getProfileSettingFloat('solid_layer_thickness')
 431         return int(math.ceil(solidThickness / layerHeight - 0.0001))
 432
 433 def getMachineCenterCoords():
 434         if getPreference('machine_center_is_zero') == 'True':
 435                 return [0, 0]
 436         return [getPreferenceFloat('machine_width') / 2, getPreferenceFloat('machine_depth') / 2]
 437
 438 def getObjectMatrix():
 439         try:
 440                 return map(float, getProfileSetting('model_matrix').split(','))
 441         except ValueError:
 442                 return [1,0,0, 0,1,0, 0,0,1]
 443
 444
 445 #########################################################
 446 ## Alteration file functions
 447 #########################################################
 448 def replaceTagMatch(m):
 449         pre = m.group(1)
 450         tag = m.group(2)
 451         if tag == 'time':
 452                 return pre + time.strftime('%H:%M:%S').encode('utf-8', 'replace')
 453         if tag == 'date':
 454                 return pre + time.strftime('%d %b %Y').encode('utf-8', 'replace')
 455         if tag == 'day':
 456                 return pre + time.strftime('%a').encode('utf-8', 'replace')
 457         if tag == 'print_time':
 458                 return pre + '#P_TIME#'
 459         if tag == 'filament_amount':
 460                 return pre + '#F_AMNT#'
 461         if tag == 'filament_weight':
 462                 return pre + '#F_WGHT#'
 463         if tag == 'filament_cost':
 464                 return pre + '#F_COST#'
 465         if pre == 'F' and tag in ['print_speed', 'retraction_speed', 'travel_speed', 'max_z_speed', 'bottom_layer_speed', 'cool_min_feedrate']:
 466                 f = getProfileSettingFloat(tag) * 60
 467         elif isProfileSetting(tag):
 468                 f = getProfileSettingFloat(tag)
 469         elif isPreference(tag):
 470                 f = getProfileSettingFloat(tag)
 471         else:
 472                 return '%s?%s?' % (pre, tag)
 473         if (f % 1) == 0:
 474                 return pre + str(int(f))
 475         return pre + str(f)
 476
 477 def replaceGCodeTags(filename, gcodeInt):
 478         f = open(filename, 'r+')
 479         data = f.read(2048)
 480         data = data.replace('#P_TIME#', ('%5d:%02d' % (int(gcodeInt.totalMoveTimeMinute / 60), int(gcodeInt.totalMoveTimeMinute % 60)))[-8:])
 481         data = data.replace('#F_AMNT#', ('%8.2f' % (gcodeInt.extrusionAmount / 1000))[-8:])
 482         data = data.replace('#F_WGHT#', ('%8.2f' % (gcodeInt.calculateWeight() * 1000))[-8:])
 483         cost = gcodeInt.calculateCost()
 484         if cost is None:
 485                 cost = 'Unknown'
 486         data = data.replace('#F_COST#', ('%8s' % (cost.split(' ')[0]))[-8:])
 487         f.seek(0)
 488         f.write(data)
 489         f.close()
 490
 491 ### Get aleration raw contents. (Used internally in Cura)
 492 def getAlterationFile(filename):
 493         #Check if we have a configuration file loaded, else load the default.
 494         if not globals().has_key('globalProfileParser'):
 495                 loadGlobalProfile(getDefaultProfilePath())
 496
 497         if not globalProfileParser.has_option('alterations', filename):
 498                 if filename in alterationDefault:
 499                         default = alterationDefault[filename]
 500                 else:
 501                         print("Missing default alteration for: '" + filename + "'")
 502                         alterationDefault[filename] = ''
 503                         default = ''
 504                 if not globalProfileParser.has_section('alterations'):
 505                         globalProfileParser.add_section('alterations')
 506                 #print("Using default for: %s" % (filename))
 507                 globalProfileParser.set('alterations', filename, default)
 508         return unicode(globalProfileParser.get('alterations', filename), "utf-8")
 509
 510 def setAlterationFile(filename, value):
 511         #Check if we have a configuration file loaded, else load the default.
 512         if not globals().has_key('globalProfileParser'):
 513                 loadGlobalProfile(getDefaultProfilePath())
 514         if not globalProfileParser.has_section('alterations'):
 515                 globalProfileParser.add_section('alterations')
 516         globalProfileParser.set('alterations', filename, value.encode("utf-8"))
 517         saveGlobalProfile(getDefaultProfilePath())
 518
 519 ### Get the alteration file for output. (Used by Skeinforge)
 520 def getAlterationFileContents(filename):
 521         prefix = ''
 522         postfix = ''
 523         alterationContents = getAlterationFile(filename)
 524         if filename == 'start.gcode':
 525                 #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.
 526                 #We also set our steps per E here, if configured.
 527                 eSteps = getPreferenceFloat('steps_per_e')
 528                 if eSteps > 0:
 529                         prefix += 'M92 E%f\n' % (eSteps)
 530                 temp = getProfileSettingFloat('print_temperature')
 531                 bedTemp = 0
 532                 if getPreference('has_heated_bed') == 'True':
 533                         bedTemp = getProfileSettingFloat('print_bed_temperature')
 534
 535                 if bedTemp > 0 and not '{print_bed_temperature}' in alterationContents:
 536                         prefix += 'M140 S%f\n' % (bedTemp)
 537                 if temp > 0 and not '{print_temperature}' in alterationContents:
 538                         prefix += 'M109 S%f\n' % (temp)
 539                 if bedTemp > 0 and not '{print_bed_temperature}' in alterationContents:
 540                         prefix += 'M190 S%f\n' % (bedTemp)
 541         elif filename == 'end.gcode':
 542                 #Append the profile string to the end of the GCode, so we can load it from the GCode file later.
 543                 postfix = ';CURA_PROFILE_STRING:%s\n' % (getGlobalProfileString())
 544         elif filename == 'replace.csv':
 545                 #Always remove the extruder on/off M codes. These are no longer needed in 5D printing.
 546                 prefix = 'M101\nM103\n'
 547         elif filename == 'support_start.gcode' or filename == 'support_end.gcode':
 548                 #Add support start/end code
 549                 if getProfileSetting('support_dual_extrusion') == 'True' and int(getPreference('extruder_amount')) > 1:
 550                         if filename == 'support_start.gcode':
 551                                 setTempOverride('extruder', '1')
 552                         else:
 553                                 setTempOverride('extruder', '0')
 554                         alterationContents = getAlterationFileContents('switchExtruder.gcode')
 555                         clearTempOverride('extruder')
 556                 else:
 557                         alterationContents = ''
 558         return unicode(prefix + re.sub("(.)\{([^\}]*)\}", replaceTagMatch, alterationContents).rstrip() + '\n' + postfix).strip().encode('utf-8') + '\n'
 559
 560 ###### PLUGIN #####
 561
 562 def getPluginConfig():
 563         try:
 564                 return pickle.loads(getProfileSetting('plugin_config'))
 565         except:
 566                 return []
 567
 568 def setPluginConfig(config):
 569         putProfileSetting('plugin_config', pickle.dumps(config))
 570
 571 def getPluginBasePaths():
 572         ret = []
 573         if platform.system() != "Windows":
 574                 ret.append(os.path.expanduser('~/.cura/plugins/'))
 575         if platform.system() == "Darwin" and hasattr(sys, 'frozen'):
 576                 ret.append(os.path.normpath(os.path.join(resources.resourceBasePath, "Cura/plugins")))
 577         else:
 578                 ret.append(os.path.normpath(os.path.join(os.path.dirname(os.path.abspath(__file__)), '..', 'plugins')))
 579         return ret
 580
 581 def getPluginList():
 582         ret = []
 583         for basePath in getPluginBasePaths():
 584                 for filename in glob.glob(os.path.join(basePath, '*.py')):
 585                         filename = os.path.basename(filename)
 586                         if filename.startswith('_'):
 587                                 continue
 588                         with open(os.path.join(basePath, filename), "r") as f:
 589                                 item = {'filename': filename, 'name': None, 'info': None, 'type': None, 'params': []}
 590                                 for line in f:
 591                                         line = line.strip()
 592                                         if not line.startswith('#'):
 593                                                 break
 594                                         line = line[1:].split(':', 1)
 595                                         if len(line) != 2:
 596                                                 continue
 597                                         if line[0].upper() == 'NAME':
 598                                                 item['name'] = line[1].strip()
 599                                         elif line[0].upper() == 'INFO':
 600                                                 item['info'] = line[1].strip()
 601                                         elif line[0].upper() == 'TYPE':
 602                                                 item['type'] = line[1].strip()
 603                                         elif line[0].upper() == 'DEPEND':
 604                                                 pass
 605                                         elif line[0].upper() == 'PARAM':
 606                                                 m = re.match('([a-zA-Z][a-zA-Z0-9_]*)\(([a-zA-Z_]*)(?::([^\)]*))?\) +(.*)', line[1].strip())
 607                                                 if m is not None:
 608                                                         item['params'].append({'name': m.group(1), 'type': m.group(2), 'default': m.group(3), 'description': m.group(4)})
 609                                         else:
 610                                                 print "Unknown item in effect meta data: %s %s" % (line[0], line[1])
 611                                 if item['name'] != None and item['type'] == 'postprocess':
 612                                         ret.append(item)
 613         return ret
 614
 615 def runPostProcessingPlugins(gcodefilename):
 616         pluginConfigList = getPluginConfig()
 617         pluginList = getPluginList()
 618
 619         for pluginConfig in pluginConfigList:
 620                 plugin = None
 621                 for pluginTest in pluginList:
 622                         if pluginTest['filename'] == pluginConfig['filename']:
 623                                 plugin = pluginTest
 624                 if plugin is None:
 625                         continue
 626
 627                 pythonFile = None
 628                 for basePath in getPluginBasePaths():
 629                         testFilename = os.path.join(basePath, pluginConfig['filename'])
 630                         if os.path.isfile(testFilename):
 631                                 pythonFile = testFilename
 632                 if pythonFile is None:
 633                         continue
 634
 635                 locals = {'filename': gcodefilename}
 636                 for param in plugin['params']:
 637                         value = param['default']
 638                         if param['name'] in pluginConfig['params']:
 639                                 value = pluginConfig['params'][param['name']]
 640
 641                         if param['type'] == 'float':
 642                                 try:
 643                                         value = float(value)
 644                                 except:
 645                                         value = float(param['default'])
 646
 647                         locals[param['name']] = value
 648                 try:
 649                         execfile(pythonFile, locals)
 650                 except:
 651                         locationInfo = traceback.extract_tb(sys.exc_info()[2])[-1]
 652                         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])
 653         return None
 654
 655 def getSDcardDrives():
 656         drives = ['']
 657         if platform.system() == "Windows":
 658                 from ctypes import windll
 659                 bitmask = windll.kernel32.GetLogicalDrives()
 660                 for letter in string.uppercase:
 661                         if bitmask & 1:
 662                                 drives.append(letter + ':/')
 663                         bitmask >>= 1
 664         if platform.system() == "Darwin":
 665                 drives = []
 666                 for volume in glob.glob('/Volumes/*'):
 667                         if stat.S_ISLNK(os.lstat(volume).st_mode):
 668                                 continue
 669                         drives.append(volume)
 670         return drives