wizard/BModulePage.py

   1 #!/usr/bin/env python
   2 # encoding: utf-8
   3 #
   4 # This file is part of BeRTOS.
   5 #
   6 # Bertos is free software; you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation; either version 2 of the License, or
   9 # (at your option) any later version.
  10 #
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15 #
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program; if not, write to the Free Software
  18 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19 #
  20 # As a special exception, you may use this file as part of a free software
  21 # library without restriction.  Specifically, if other files instantiate
  22 # templates or use macros or inline functions from this file, or you compile
  23 # this file and link it with other files to produce an executable, this
  24 # file does not by itself cause the resulting executable to be covered by
  25 # the GNU General Public License.  This exception does not however
  26 # invalidate any other reasons why the executable file might be covered by
  27 # the GNU General Public License.
  28 #
  29 # Copyright 2008 Develer S.r.l. (http://www.develer.com/)
  30 #
  31 #
  32 # Author: Lorenzo Berni <duplo@develer.com>
  33 #
  34
  35 import os
  36
  37 from PyQt4.QtCore import *
  38 from PyQt4.QtGui import *
  39 from BWizardPage import *
  40 import bertos_utils
  41
  42 from bertos_utils import SupportedException
  43 from DefineException import *
  44 from const import *
  45
  46 class BModulePage(BWizardPage):
  47     """
  48     Page of the wizard that permits to select and configurate the BeRTOS modules.
  49     """
  50
  51     def __init__(self):
  52         BWizardPage.__init__(self, UI_LOCATION + "/module_select.ui")
  53         self.setTitle(self.tr("Configure the BeRTOS modules"))
  54         self._control_group = QControlGroup()
  55         ## special connection needed for the QControlGroup
  56         self.connect(self._control_group, SIGNAL("stateChanged"), self.saveValue)
  57
  58     ## Overloaded BWizardPage methods ##
  59
  60     def setupUi(self):
  61         """
  62         Overload of BWizardPage setupUi method.
  63         """
  64         self.pageContent.moduleTree.clear()
  65         self.pageContent.moduleTree.setHeaderHidden(True)
  66         self.pageContent.propertyTable.horizontalHeader().setResizeMode(QHeaderView.Stretch)
  67         self.pageContent.propertyTable.horizontalHeader().setVisible(False)
  68         self.pageContent.propertyTable.verticalHeader().setResizeMode(QHeaderView.ResizeToContents)
  69         self.pageContent.propertyTable.verticalHeader().setVisible(False)
  70         self.pageContent.propertyTable.setColumnCount(2)
  71         self.pageContent.propertyTable.setRowCount(0)
  72         self.pageContent.moduleLabel.setVisible(False)
  73         self.pageContent.warningLabel.setVisible(False)
  74
  75     def connectSignals(self):
  76         """
  77         Overload of the BWizardPage connectSignals method.
  78         """
  79         self.connect(self.pageContent.moduleTree, SIGNAL("itemPressed(QTreeWidgetItem*, int)"), self.fillPropertyTable)
  80         self.connect(self.pageContent.moduleTree, SIGNAL("itemPressed(QTreeWidgetItem*, int)"), self.moduleClicked)
  81         self.connect(self.pageContent.moduleTree, SIGNAL("itemChanged(QTreeWidgetItem*, int)"), self.dependencyCheck)
  82
  83     def reloadData(self, previous_id=None):
  84         """
  85         Overload of the BWizardPage reloadData method.
  86         """
  87         # Check if the user are approaching this page from the previous or the
  88         # next one.
  89         if previous_id is None or previous_id < self.wizard().currentId():
  90             try:
  91                 QApplication.instance().setOverrideCursor(Qt.WaitCursor)
  92                 self.setupUi()
  93                 self.loadModuleData()
  94                 self.fillModuleTree()
  95             finally:
  96                 QApplication.instance().restoreOverrideCursor()
  97
  98     ####
  99
 100     ## Slots ##
 101
 102     def moduleClicked(self, item, column):
 103         self.setBold(item, False)
 104
 105     def fillPropertyTable(self):
 106         """
 107         Slot called when the user selects a module from the module tree.
 108         Fills the property table using the configuration parameters defined in
 109         the source tree.
 110         """
 111         module = self.currentModule()
 112         if module:
 113             try:
 114                 supported = bertos_utils.isSupported(self.project, module=module)
 115             except SupportedException, e:
 116                 self.exceptionOccurred(self.tr("Error evaluating \"%1\" for module %2").arg(e.support_string).arg(module))
 117                 supported = True
 118             self._control_group.clear()
 119             configuration = self.projectInfo("MODULES")[module]["configuration"]
 120             module_description = self.projectInfo("MODULES")[module]["description"]
 121             self.pageContent.moduleLabel.setText(module_description)
 122             self.pageContent.moduleLabel.setVisible(True)
 123             if not supported:
 124                 self.pageContent.warningLabel.setVisible(True)
 125                 selected_cpu = self.projectInfo("CPU_NAME")
 126                 self.pageContent.warningLabel.setText(self.tr("<font color='#FF0000'>Warning: the selected module, \
 127                     is not completely supported by the %1.</font>").arg(selected_cpu))
 128             else:
 129                 self.pageContent.warningLabel.setVisible(False)
 130             self.pageContent.propertyTable.clear()
 131             self.pageContent.propertyTable.setRowCount(0)
 132             if configuration != "":
 133                 configurations = self.projectInfo("CONFIGURATIONS")[configuration]
 134                 param_list = sorted(configurations["paramlist"])
 135                 index = 0
 136                 for i, property in param_list:
 137                     if "type" in configurations[property]["informations"] and configurations[property]["informations"]["type"] == "autoenabled":
 138                         # Doesn't show the hidden fields
 139                         continue
 140                     try:
 141                         param_supported = bertos_utils.isSupported(self.project, property_id=(configuration, property))
 142                     except SupportedException, e:
 143                         self.exceptionOccurred(self.tr("Error evaluating \"%1\" for parameter %2").arg(e.support_string).arg(property))
 144                         param_supported = True
 145                     if not param_supported:
 146                         # Doesn't show the unsupported parameters
 147                         continue
 148                     # Set the row count to the current index + 1
 149                     self.pageContent.propertyTable.setRowCount(index + 1)
 150                     item = QTableWidgetItem(configurations[property]["brief"])
 151                     item.setFlags(item.flags() & ~Qt.ItemIsSelectable)
 152                     tooltip = property
 153                     description = configurations[property].get("description", None)
 154                     if description:
 155                         tooltip = tooltip + ": " + description
 156                     item.setToolTip(tooltip)
 157                     item.setData(Qt.UserRole, qvariant_converter.convertString(property))
 158                     self.pageContent.propertyTable.setItem(index, 0, item)
 159                     if "type" in configurations[property]["informations"] and configurations[property]["informations"]["type"] == "boolean":
 160                         self.insertCheckBox(index, configurations[property]["value"])
 161                     elif "type" in configurations[property]["informations"] and configurations[property]["informations"]["type"] == "enum":
 162                         self.insertComboBox(index, configurations[property]["value"], configurations[property]["informations"]["value_list"])
 163                     elif "type" in configurations[property]["informations"] and configurations[property]["informations"]["type"] == "int":
 164                         self.insertSpinBox(index, configurations[property]["value"], configurations[property]["informations"])
 165                     elif "type" in configurations[property]["informations"] and configurations[property]["informations"]["type"] == "hex":
 166                         self.insertLineEdit(index, configurations[property]["value"], configurations[property]["informations"])
 167                     else:
 168                         # Not defined type, rendered as a text field
 169                         self.pageContent.propertyTable.setItem(index, 1, QTableWidgetItem(configurations[property]["value"]))
 170                     index += 1
 171             if self.pageContent.propertyTable.rowCount() == 0:
 172                 module_label = self.pageContent.moduleLabel.text()
 173                 module_label += "\n\nNo configuration needed."
 174                 self.pageContent.moduleLabel.setText(module_label)
 175         else:
 176             self.pageContent.moduleLabel.setText("")
 177             self.pageContent.moduleLabel.setVisible(False)
 178             self.pageContent.propertyTable.clear()
 179             self.pageContent.propertyTable.setRowCount(0)
 180
 181     def dependencyCheck(self, item):
 182         """
 183         Checks the dependencies of the module associated with the given item.
 184         """
 185         checked = False
 186         module = unicode(item.text(0))
 187         if item.checkState(0) == Qt.Checked:
 188             self.moduleSelected(module)
 189         else:
 190             self.moduleUnselected(module)
 191             self.removeFileDependencies(module)
 192
 193     def showPropertyDescription(self):
 194         """
 195         Slot called when the property selection changes. Shows the description
 196         of the selected property.
 197         """
 198         self.resetPropertyDescription()
 199         configurations = self.currentModuleConfigurations()
 200         if self.currentProperty() in configurations:
 201             description = configurations[self.currentProperty()]["brief"]
 202             name = self.currentProperty()
 203             self.currentPropertyItem().setText(description + "\n" + name)
 204
 205     def saveValue(self, index):
 206         """
 207         Slot called when the user modifies one of the configuration parameters.
 208         It stores the new value."""
 209         property = qvariant_converter.getString(self.pageContent.propertyTable.item(index, 0).data(Qt.UserRole))
 210         configuration = self.projectInfo("MODULES")[self.currentModule()]["configuration"]
 211         configurations = self.projectInfo("CONFIGURATIONS")
 212         if "type" not in configurations[configuration][property]["informations"] or configurations[configuration][property]["informations"]["type"] == "int":
 213             configurations[configuration][property]["value"] = unicode(int(self.pageContent.propertyTable.cellWidget(index, 1).value()))
 214         elif configurations[configuration][property]["informations"]["type"] == "enum":
 215             configurations[configuration][property]["value"] = unicode(self.pageContent.propertyTable.cellWidget(index, 1).currentText())
 216         elif configurations[configuration][property]["informations"]["type"] == "boolean":
 217             if self.pageContent.propertyTable.cellWidget(index, 1).isChecked():
 218                 configurations[configuration][property]["value"] = "1"
 219             else:
 220                 configurations[configuration][property]["value"] = "0"
 221         self.setProjectInfo("CONFIGURATIONS", configurations)
 222         if self.moduleItem(self.currentModule()).checkState(0) == Qt.Checked:
 223             self.dependencyCheck(self.moduleItem(self.currentModule()))
 224
 225     ####
 226
 227     def loadModuleData(self):
 228         """
 229         Loads the module data.
 230         """
 231         # Do not load the module data again when the Wizard is in editing mode
 232         # or when it's working on a preset.
 233         if not self.project.edit and not self.project.from_preset:
 234             # Load the module data every time so that if the user changed the cpu
 235             # the right configurations are picked up.
 236             try:
 237                 self.project.loadModuleData()
 238             except ModuleDefineException, e:
 239                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 240             except EnumDefineException, e:
 241                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 242             except ConfigurationDefineException, e:
 243                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 244
 245     def fillModuleTree(self):
 246         """
 247         Fills the module tree with the module entries separated in categories.
 248         """
 249         self.pageContent.moduleTree.clear()
 250         modules = self.projectInfo("MODULES")
 251         if not modules:
 252             return
 253         categories = {}
 254         for module, information in modules.items():
 255             if information["category"] not in categories:
 256                 categories[information["category"]] = []
 257             categories[information["category"]].append(module)
 258         for category, module_list in categories.items():
 259             item = QTreeWidgetItem(QStringList([category]))
 260             for module in module_list:
 261                 enabled = modules[module]["enabled"]
 262                 module_item = QTreeWidgetItem(item, QStringList([module]))
 263                 try:
 264                     supported = bertos_utils.isSupported(self.project, module=module)
 265                 except SupportedException, e:
 266                     self.exceptionOccurred(self.tr("Error evaluating \"%1\" for module %2").arg(e.support_string).arg(module))
 267                     supported = True
 268                 if not supported:
 269                     module_item.setForeground(0, QBrush(QColor(Qt.red)))
 270                 if enabled:
 271                     module_item.setCheckState(0, Qt.Checked)
 272                 else:
 273                     module_item.setCheckState(0, Qt.Unchecked)
 274             self.pageContent.moduleTree.addTopLevelItem(item)
 275         self.pageContent.moduleTree.sortItems(0, Qt.AscendingOrder)
 276         self.fillPropertyTable()
 277
 278     def insertCheckBox(self, index, value):
 279         """
 280         Inserts in the table at index a checkbox for a boolean property setted
 281         to value.
 282         """
 283         check_box = QCheckBox()
 284         self.pageContent.propertyTable.setCellWidget(index, 1, check_box)
 285         if value == "1":
 286             check_box.setChecked(True)
 287         else:
 288             check_box.setChecked(False)
 289         self._control_group.addControl(index, check_box)
 290
 291     def insertComboBox(self, index, value, value_list):
 292         """
 293         Inserts in the table at index a combobox for an enum property setted
 294         to value.
 295         """
 296         try:
 297             enum = self.projectInfo("LISTS")[value_list]
 298             combo_box = QComboBox()
 299             self.pageContent.propertyTable.setCellWidget(index, 1, combo_box)
 300             for i, element in enumerate(enum):
 301                 combo_box.addItem(element)
 302                 if element == value:
 303                     combo_box.setCurrentIndex(i)
 304             self._control_group.addControl(index, combo_box)
 305         except KeyError:
 306             self.exceptionOccurred(self.tr("Define list \"%1\" not found. Check definition files.").arg(value_list))
 307             self.pageContent.propertyTable.setItem(index, 1, QTableWidgetItem(value))
 308
 309     def insertSpinBox(self, index, value, informations):
 310         """
 311         Inserts in the table at index a spinbox for an int, a long or an unsigned
 312         long property setted to value.
 313         """
 314         # int, long or undefined type property
 315         spin_box = None
 316         if bertos_utils.isLong(informations) or bertos_utils.isUnsignedLong(informations):
 317             spin_box = QDoubleSpinBox()
 318             spin_box.setDecimals(0)
 319         else:
 320             spin_box = QSpinBox()
 321         self.pageContent.propertyTable.setCellWidget(index, 1, spin_box)
 322         minimum = -32768
 323         maximum = 32767
 324         suff = ""
 325         if bertos_utils.isLong(informations):
 326             minimum = -2147483648
 327             maximum = 2147483647
 328             suff = "L"
 329         elif bertos_utils.isUnsigned(informations):
 330             minimum = 0
 331             maximum = 65535
 332             suff = "U"
 333         elif bertos_utils.isUnsignedLong(informations):
 334             minimum = 0
 335             maximum = 4294967295
 336             suff = "UL"
 337         if "min" in informations:
 338             minimum = int(informations["min"])
 339         if "max" in informations:
 340             maximum = int(informations["max"])
 341         spin_box.setRange(minimum, maximum)
 342         spin_box.setSuffix(suff)
 343         spin_box.setValue(int(value.replace("L", "").replace("U", ""), 0))
 344         self._control_group.addControl(index, spin_box)
 345
 346
 347     def insertLineEdit(self, index, value, informations):
 348         """
 349         Inserts in the table at index a line edit for hexadecimal property
 350         setted to value.
 351         """
 352         edit_box = QLineEdit()
 353         edit_validator = QRegExpValidator(QRegExp(r"^0x[0-9A-Fa-f]+$"), edit_box)
 354         edit_box.setValidator(edit_validator)
 355         self.pageContent.propertyTable.setCellWidget(index, 1, edit_box)
 356         edit_box.setText(value)
 357         self._control_group.addControl(index, edit_box)
 358
 359     def currentModule(self):
 360         """
 361         Retuns the current module name.
 362         """
 363         current_module = self.pageContent.moduleTree.currentItem()
 364         # return only the child items
 365         if current_module and current_module.parent():
 366             return unicode(current_module.text(0))
 367         else:
 368             return None
 369
 370     def moduleItem(self, module):
 371         for top_level_index in range(self.pageContent.moduleTree.topLevelItemCount()):
 372             top_level_item = self.pageContent.moduleTree.topLevelItem(top_level_index)
 373             for child_index in range(top_level_item.childCount()):
 374                 child_item = top_level_item.child(child_index)
 375                 if unicode(child_item.text(0)) == module:
 376                     return child_item
 377         return None
 378
 379     def currentModuleConfigurations(self):
 380         """
 381         Returns the current module configuration.
 382         """
 383         return self.configurations(self.currentModule())
 384
 385     def currentProperty(self):
 386         """
 387         Rerturns the current property from the property table.
 388         """
 389         return qvariant_converter.getString(self.pageContent.propertyTable.item(self.pageContent.propertyTable.currentRow(), 0).data(Qt.UserRole))
 390
 391     def currentPropertyItem(self):
 392         """
 393         Returns the QTableWidgetItem of the current property.
 394         """
 395         return self.pageContent.propertyTable.item(self.pageContent.propertyTable.currentRow(), 0)
 396
 397     def configurations(self, module):
 398         """
 399         Returns the configuration for the selected module.
 400         """
 401         configuration = []
 402         if module:
 403             # On linux platform it seems that the behaviour of the focus
 404             # changing is a bit different from the mac one. So if module is
 405             # None then no configurations should be returned.
 406             configuration = self.projectInfo("MODULES")[module]["configuration"]
 407         if len(configuration) > 0:
 408             return self.projectInfo("CONFIGURATIONS")[configuration]
 409         else:
 410             return {}
 411
 412     def resetPropertyDescription(self):
 413         """
 414         Resets the label for each property table entry.
 415         """
 416         for index in range(self.pageContent.propertyTable.rowCount()):
 417             property_name = qvariant_converter.getString(self.pageContent.propertyTable.item(index, 0).data(Qt.UserRole))
 418             # Awful solution! Needed because if the user change the module, the selection changed...
 419             if property_name not in self.currentModuleConfigurations():
 420                 break
 421             self.pageContent.propertyTable.item(index, 0).setText(self.currentModuleConfigurations()[property_name]['brief'])
 422
 423     def setBold(self, item, bold):
 424         self.pageContent.moduleTree.blockSignals(True)
 425         font = item.font(0)
 426         font.setBold(bold)
 427         item.setFont(0, font)
 428         self.pageContent.moduleTree.blockSignals(False)
 429
 430     def isBold(self, item):
 431         return item.font(0).bold()
 432
 433     def moduleSelected(self, selectedModule):
 434         """
 435         Resolves the selection dependencies.
 436         """
 437         try:
 438             qApp.setOverrideCursor(Qt.WaitCursor)
 439             modules = self.projectInfo("MODULES")
 440             modules[selectedModule]["enabled"] = True
 441             self.setProjectInfo("MODULES", modules)
 442             depends = self.projectInfo("MODULES")[selectedModule]["depends"]
 443             unsatisfied = []
 444             if self.pageContent.automaticFix.isChecked():
 445                 unsatisfied = self.selectDependencyCheck(selectedModule)
 446             if len(unsatisfied) > 0:
 447                 for module in unsatisfied:
 448                     modules = self.projectInfo("MODULES")
 449                     modules[module]["enabled"] = True
 450                 for category in range(self.pageContent.moduleTree.topLevelItemCount()):
 451                     item = self.pageContent.moduleTree.topLevelItem(category)
 452                     for child in range(item.childCount()):
 453                         if unicode(item.child(child).text(0)) in unsatisfied:
 454                             self.setBold(item.child(child), True)
 455                             self.setBold(item, True)
 456                             item.child(child).setCheckState(0, Qt.Checked)
 457         finally:
 458             qApp.restoreOverrideCursor()
 459
 460     def moduleUnselected(self, unselectedModule):
 461         """
 462         Resolves the unselection dependencies.
 463         """
 464         try:
 465             qApp.setOverrideCursor(Qt.WaitCursor)
 466             modules = self.projectInfo("MODULES")
 467             modules[unselectedModule]["enabled"] = False
 468             self.setProjectInfo("MODULES", modules)
 469             unsatisfied = []
 470             unsatisfied_params = []
 471             if self.pageContent.automaticFix.isChecked():
 472                 unsatisfied, unsatisfied_params = self.unselectDependencyCheck(unselectedModule)
 473             if len(unsatisfied) > 0 or len(unsatisfied_params) > 0:
 474                 message = []
 475                 heading = self.tr("The module %1 is needed by").arg(unselectedModule)
 476                 message.append(heading)
 477                 module_list = ", ".join(unsatisfied)
 478                 param_list = ", ".join(["%s (%s)" %(param_name, module) for module, param_name in unsatisfied_params])
 479                 if module_list:
 480                     message.append(QString(module_list))
 481                 if module_list and param_list:
 482                     message.append(self.tr("and by"))
 483                 if param_list:
 484                     message.append(QString(param_list))
 485                 message_str = QStringList(message).join(" ")
 486                 message_str.append(self.tr("\n\nDo you want to automatically fix these conflicts?"))
 487                 qApp.restoreOverrideCursor()
 488                 choice = QMessageBox.warning(self, self.tr("Dependency error"), message_str, QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
 489                 qApp.setOverrideCursor(Qt.WaitCursor)
 490                 if choice == QMessageBox.Yes:
 491                     for module in unsatisfied:
 492                         modules = self.projectInfo("MODULES")
 493                         modules[module]["enabled"] = False
 494                     for category in range(self.pageContent.moduleTree.topLevelItemCount()):
 495                         item = self.pageContent.moduleTree.topLevelItem(category)
 496                         self.setBold(item, False)
 497                         for child in range(item.childCount()):
 498                             if unicode(item.child(child).text(0)) in unsatisfied:
 499                                 self.setBold(item.child(child), False)
 500                                 item.child(child).setCheckState(0, Qt.Unchecked)
 501                             else:
 502                                 if self.isBold(item.child(child)):
 503                                     self.setBold(item, True)
 504                     for module, param in unsatisfied_params:
 505                         configuration_file = self.projectInfo("MODULES")[module]["configuration"]
 506                         configurations = self.projectInfo("CONFIGURATIONS")
 507                         configurations[configuration_file][param]["value"] = "0"
 508                         self.setProjectInfo("CONFIGURATIONS", configurations)
 509         finally:
 510             qApp.restoreOverrideCursor()
 511
 512     def selectDependencyCheck(self, module):
 513         """
 514         Returns the list of unsatisfied dependencies after a selection.
 515         """
 516         unsatisfied = set()
 517         modules = self.projectInfo("MODULES")
 518         files = self.projectInfo("FILES")
 519         configurations = self.projectInfo("CONFIGURATIONS").get(modules[module]["configuration"], {"paramlist": ()})
 520         conditional_deps = ()
 521         for i, param_name in configurations["paramlist"]:
 522             information = configurations[param_name]
 523             if information["informations"]["type"] == "boolean" and \
 524                 information["value"] != "0" and \
 525                 "conditional_deps" in information["informations"]:
 526
 527                 conditional_deps += information["informations"]["conditional_deps"]
 528
 529         for dependency in modules[module]["depends"] + conditional_deps:
 530             if dependency in modules and not modules[dependency]["enabled"]:
 531                 unsatisfied |= set([dependency])
 532                 if dependency not in unsatisfied:
 533                     unsatisfied |= self.selectDependencyCheck(dependency)
 534             if dependency not in modules:
 535                 if dependency in files:
 536                     files[dependency] += 1
 537                 else:
 538                     files[dependency] = 1
 539         self.setProjectInfo("FILES", files)
 540         return unsatisfied
 541
 542     def unselectDependencyCheck(self, dependency):
 543         """
 544         Returns the list of unsatisfied dependencies after an unselection.
 545         """
 546         unsatisfied = set()
 547         unsatisfied_params = set()
 548         modules = self.projectInfo("MODULES")
 549         for module, informations in modules.items():
 550             configurations = self.projectInfo("CONFIGURATIONS").get(informations["configuration"], {"paramlist": ()})
 551             conditional_deps = {}
 552             for i, param_name in configurations["paramlist"]:
 553                 information = configurations[param_name]
 554                 if information["informations"]["type"] == "boolean" and information["value"] != "0" and "conditional_deps" in information["informations"]:
 555                     for dep in information["informations"]["conditional_deps"]:
 556                         if not dep in conditional_deps:
 557                             conditional_deps[dep] = []
 558                         conditional_deps[dep].append((module, param_name))
 559             if dependency in informations["depends"] and informations["enabled"]:
 560                 unsatisfied |= set([module])
 561                 if dependency not in unsatisfied:
 562                     tmp = self.unselectDependencyCheck(module)
 563                     unsatisfied |= tmp[0]
 564                     unsatisfied_params |= tmp[1]
 565             if dependency in conditional_deps:
 566                 unsatisfied_params |= set(conditional_deps[dependency])
 567         return unsatisfied, unsatisfied_params
 568
 569     def removeFileDependencies(self, module):
 570         """
 571         Removes the files dependencies of the given module.
 572         """
 573         modules = self.projectInfo("MODULES")
 574         files = self.projectInfo("FILES")
 575         dependencies = modules[module]["depends"]
 576         for dependency in dependencies:
 577             if dependency in files:
 578                 files[dependency] -= 1
 579                 if files[dependency] == 0:
 580                     del files[dependency]
 581         self.setProjectInfo("FILES", files)
 582
 583 class QControlGroup(QObject):
 584     """
 585     Simple class that permit to connect different signals of different widgets
 586     with a slot that emit a signal. Permits to group widget and to understand which of
 587     them has sent the signal.
 588     """
 589
 590     def __init__(self):
 591         QObject.__init__(self)
 592         self._controls = {}
 593
 594     def addControl(self, id, control):
 595         """
 596         Add a control.
 597         """
 598         self._controls[id] = control
 599         if type(control) == QCheckBox:
 600             self.connect(control, SIGNAL("stateChanged(int)"), lambda: self.stateChanged(id))
 601         elif type(control) == QSpinBox:
 602             self.connect(control, SIGNAL("valueChanged(int)"), lambda: self.stateChanged(id))
 603         elif type(control) == QComboBox:
 604             self.connect(control, SIGNAL("currentIndexChanged(int)"), lambda: self.stateChanged(id))
 605         elif type(control) == QDoubleSpinBox:
 606             self.connect(control, SIGNAL("valueChanged(double)"), lambda: self.stateChanged(id))
 607
 608     def clear(self):
 609         """
 610         Remove all the controls.
 611         """
 612         self._controls = {}
 613
 614     def stateChanged(self, id):
 615         """
 616         Slot called when the value of one of the stored widget changes. It emits
 617         another signal.
 618         """
 619         self.emit(SIGNAL("stateChanged"), id)