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                     else:
 166                         # Not defined type, rendered as a text field
 167                         self.pageContent.propertyTable.setItem(index, 1, QTableWidgetItem(configurations[property]["value"]))
 168                     index += 1
 169             if self.pageContent.propertyTable.rowCount() == 0:
 170                 module_label = self.pageContent.moduleLabel.text()
 171                 module_label += "\n\nNo configuration needed."
 172                 self.pageContent.moduleLabel.setText(module_label)
 173         else:
 174             self.pageContent.moduleLabel.setText("")
 175             self.pageContent.moduleLabel.setVisible(False)
 176             self.pageContent.propertyTable.clear()
 177             self.pageContent.propertyTable.setRowCount(0)
 178
 179     def dependencyCheck(self, item):
 180         """
 181         Checks the dependencies of the module associated with the given item.
 182         """
 183         checked = False
 184         module = unicode(item.text(0))
 185         if item.checkState(0) == Qt.Checked:
 186             self.moduleSelected(module)
 187         else:
 188             self.moduleUnselected(module)
 189             self.removeFileDependencies(module)
 190
 191     def showPropertyDescription(self):
 192         """
 193         Slot called when the property selection changes. Shows the description
 194         of the selected property.
 195         """
 196         self.resetPropertyDescription()
 197         configurations = self.currentModuleConfigurations()
 198         if self.currentProperty() in configurations:
 199             description = configurations[self.currentProperty()]["brief"]
 200             name = self.currentProperty()
 201             self.currentPropertyItem().setText(description + "\n" + name)
 202
 203     def saveValue(self, index):
 204         """
 205         Slot called when the user modifies one of the configuration parameters.
 206         It stores the new value."""
 207         property = qvariant_converter.getString(self.pageContent.propertyTable.item(index, 0).data(Qt.UserRole))
 208         configuration = self.projectInfo("MODULES")[self.currentModule()]["configuration"]
 209         configurations = self.projectInfo("CONFIGURATIONS")
 210         if "type" not in configurations[configuration][property]["informations"] or configurations[configuration][property]["informations"]["type"] == "int":
 211             configurations[configuration][property]["value"] = unicode(int(self.pageContent.propertyTable.cellWidget(index, 1).value()))
 212         elif configurations[configuration][property]["informations"]["type"] == "enum":
 213             configurations[configuration][property]["value"] = unicode(self.pageContent.propertyTable.cellWidget(index, 1).currentText())
 214         elif configurations[configuration][property]["informations"]["type"] == "boolean":
 215             if self.pageContent.propertyTable.cellWidget(index, 1).isChecked():
 216                 configurations[configuration][property]["value"] = "1"
 217             else:
 218                 configurations[configuration][property]["value"] = "0"
 219         self.setProjectInfo("CONFIGURATIONS", configurations)
 220         if self.moduleItem(self.currentModule()).checkState(0) == Qt.Checked:
 221             self.dependencyCheck(self.moduleItem(self.currentModule()))
 222
 223     ####
 224
 225     def loadModuleData(self):
 226         """
 227         Loads the module data.
 228         """
 229         # Do not load the module data again when the Wizard is in editing mode
 230         # or when it's working on a preset.
 231         if not self.project.edit and not self.project.from_preset:
 232             # Load the module data every time so that if the user changed the cpu
 233             # the right configurations are picked up.
 234             try:
 235                 self.project.loadModuleData()
 236             except ModuleDefineException, e:
 237                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 238             except EnumDefineException, e:
 239                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 240             except ConfigurationDefineException, e:
 241                 self.exceptionOccurred(self.tr("Error parsing line '%2' in file %1").arg(e.path).arg(e.line))
 242
 243     def fillModuleTree(self):
 244         """
 245         Fills the module tree with the module entries separated in categories.
 246         """
 247         self.pageContent.moduleTree.clear()
 248         modules = self.projectInfo("MODULES")
 249         if not modules:
 250             return
 251         categories = {}
 252         for module, information in modules.items():
 253             if information["category"] not in categories:
 254                 categories[information["category"]] = []
 255             categories[information["category"]].append(module)
 256         for category, module_list in categories.items():
 257             item = QTreeWidgetItem(QStringList([category]))
 258             for module in module_list:
 259                 enabled = modules[module]["enabled"]
 260                 module_item = QTreeWidgetItem(item, QStringList([module]))
 261                 try:
 262                     supported = bertos_utils.isSupported(self.project, module=module)
 263                 except SupportedException, e:
 264                     self.exceptionOccurred(self.tr("Error evaluating \"%1\" for module %2").arg(e.support_string).arg(module))
 265                     supported = True
 266                 if not supported:
 267                     module_item.setForeground(0, QBrush(QColor(Qt.red)))
 268                 if enabled:
 269                     module_item.setCheckState(0, Qt.Checked)
 270                 else:
 271                     module_item.setCheckState(0, Qt.Unchecked)
 272             self.pageContent.moduleTree.addTopLevelItem(item)
 273         self.pageContent.moduleTree.sortItems(0, Qt.AscendingOrder)
 274         self.fillPropertyTable()
 275
 276     def insertCheckBox(self, index, value):
 277         """
 278         Inserts in the table at index a checkbox for a boolean property setted
 279         to value.
 280         """
 281         check_box = QCheckBox()
 282         self.pageContent.propertyTable.setCellWidget(index, 1, check_box)
 283         if value == "1":
 284             check_box.setChecked(True)
 285         else:
 286             check_box.setChecked(False)
 287         self._control_group.addControl(index, check_box)
 288
 289     def insertComboBox(self, index, value, value_list):
 290         """
 291         Inserts in the table at index a combobox for an enum property setted
 292         to value.
 293         """
 294         try:
 295             enum = self.projectInfo("LISTS")[value_list]
 296             combo_box = QComboBox()
 297             self.pageContent.propertyTable.setCellWidget(index, 1, combo_box)
 298             for i, element in enumerate(enum):
 299                 combo_box.addItem(element)
 300                 if element == value:
 301                     combo_box.setCurrentIndex(i)
 302             self._control_group.addControl(index, combo_box)
 303         except KeyError:
 304             self.exceptionOccurred(self.tr("Define list \"%1\" not found. Check definition files.").arg(value_list))
 305             self.pageContent.propertyTable.setItem(index, 1, QTableWidgetItem(value))
 306
 307     def insertSpinBox(self, index, value, informations):
 308         """
 309         Inserts in the table at index a spinbox for an int, a long or an unsigned
 310         long property setted to value.
 311         """
 312         # int, long or undefined type property
 313         spin_box = None
 314         if bertos_utils.isLong(informations) or bertos_utils.isUnsignedLong(informations):
 315             spin_box = QDoubleSpinBox()
 316             spin_box.setDecimals(0)
 317         else:
 318             spin_box = QSpinBox()
 319         self.pageContent.propertyTable.setCellWidget(index, 1, spin_box)
 320         minimum = -32768
 321         maximum = 32767
 322         suff = ""
 323         if bertos_utils.isLong(informations):
 324             minimum = -2147483648
 325             maximum = 2147483647
 326             suff = "L"
 327         elif bertos_utils.isUnsigned(informations):
 328             minimum = 0
 329             maximum = 65535
 330             suff = "U"
 331         elif bertos_utils.isUnsignedLong(informations):
 332             minimum = 0
 333             maximum = 4294967295
 334             suff = "UL"
 335         if "min" in informations:
 336             minimum = int(informations["min"])
 337         if "max" in informations:
 338             maximum = int(informations["max"])
 339         spin_box.setRange(minimum, maximum)
 340         spin_box.setSuffix(suff)
 341         spin_box.setValue(int(value.replace("L", "").replace("U", "")))
 342         self._control_group.addControl(index, spin_box)
 343
 344
 345     def currentModule(self):
 346         """
 347         Retuns the current module name.
 348         """
 349         current_module = self.pageContent.moduleTree.currentItem()
 350         # return only the child items
 351         if current_module and current_module.parent():
 352             return unicode(current_module.text(0))
 353         else:
 354             return None
 355
 356     def moduleItem(self, module):
 357         for top_level_index in range(self.pageContent.moduleTree.topLevelItemCount()):
 358             top_level_item = self.pageContent.moduleTree.topLevelItem(top_level_index)
 359             for child_index in range(top_level_item.childCount()):
 360                 child_item = top_level_item.child(child_index)
 361                 if unicode(child_item.text(0)) == module:
 362                     return child_item
 363         return None
 364
 365     def currentModuleConfigurations(self):
 366         """
 367         Returns the current module configuration.
 368         """
 369         return self.configurations(self.currentModule())
 370
 371     def currentProperty(self):
 372         """
 373         Rerturns the current property from the property table.
 374         """
 375         return qvariant_converter.getString(self.pageContent.propertyTable.item(self.pageContent.propertyTable.currentRow(), 0).data(Qt.UserRole))
 376
 377     def currentPropertyItem(self):
 378         """
 379         Returns the QTableWidgetItem of the current property.
 380         """
 381         return self.pageContent.propertyTable.item(self.pageContent.propertyTable.currentRow(), 0)
 382
 383     def configurations(self, module):
 384         """
 385         Returns the configuration for the selected module.
 386         """
 387         configuration = []
 388         if module:
 389             # On linux platform it seems that the behaviour of the focus
 390             # changing is a bit different from the mac one. So if module is
 391             # None then no configurations should be returned.
 392             configuration = self.projectInfo("MODULES")[module]["configuration"]
 393         if len(configuration) > 0:
 394             return self.projectInfo("CONFIGURATIONS")[configuration]
 395         else:
 396             return {}
 397
 398     def resetPropertyDescription(self):
 399         """
 400         Resets the label for each property table entry.
 401         """
 402         for index in range(self.pageContent.propertyTable.rowCount()):
 403             property_name = qvariant_converter.getString(self.pageContent.propertyTable.item(index, 0).data(Qt.UserRole))
 404             # Awful solution! Needed because if the user change the module, the selection changed...
 405             if property_name not in self.currentModuleConfigurations():
 406                 break
 407             self.pageContent.propertyTable.item(index, 0).setText(self.currentModuleConfigurations()[property_name]['brief'])
 408
 409     def setBold(self, item, bold):
 410         self.pageContent.moduleTree.blockSignals(True)
 411         font = item.font(0)
 412         font.setBold(bold)
 413         item.setFont(0, font)
 414         self.pageContent.moduleTree.blockSignals(False)
 415
 416     def isBold(self, item):
 417         return item.font(0).bold()
 418
 419     def moduleSelected(self, selectedModule):
 420         """
 421         Resolves the selection dependencies.
 422         """
 423         try:
 424             qApp.setOverrideCursor(Qt.WaitCursor)
 425             modules = self.projectInfo("MODULES")
 426             modules[selectedModule]["enabled"] = True
 427             self.setProjectInfo("MODULES", modules)
 428             depends = self.projectInfo("MODULES")[selectedModule]["depends"]
 429             unsatisfied = []
 430             if self.pageContent.automaticFix.isChecked():
 431                 unsatisfied = self.selectDependencyCheck(selectedModule)
 432             if len(unsatisfied) > 0:
 433                 for module in unsatisfied:
 434                     modules = self.projectInfo("MODULES")
 435                     modules[module]["enabled"] = True
 436                 for category in range(self.pageContent.moduleTree.topLevelItemCount()):
 437                     item = self.pageContent.moduleTree.topLevelItem(category)
 438                     for child in range(item.childCount()):
 439                         if unicode(item.child(child).text(0)) in unsatisfied:
 440                             self.setBold(item.child(child), True)
 441                             self.setBold(item, True)
 442                             item.child(child).setCheckState(0, Qt.Checked)
 443         finally:
 444             qApp.restoreOverrideCursor()
 445
 446     def moduleUnselected(self, unselectedModule):
 447         """
 448         Resolves the unselection dependencies.
 449         """
 450         try:
 451             qApp.setOverrideCursor(Qt.WaitCursor)
 452             modules = self.projectInfo("MODULES")
 453             modules[unselectedModule]["enabled"] = False
 454             self.setProjectInfo("MODULES", modules)
 455             unsatisfied = []
 456             unsatisfied_params = []
 457             if self.pageContent.automaticFix.isChecked():
 458                 unsatisfied, unsatisfied_params = self.unselectDependencyCheck(unselectedModule)
 459             if len(unsatisfied) > 0 or len(unsatisfied_params) > 0:
 460                 message = []
 461                 heading = self.tr("The module %1 is needed by").arg(unselectedModule)
 462                 message.append(heading)
 463                 module_list = ", ".join(unsatisfied)
 464                 param_list = ", ".join(["%s (%s)" %(param_name, module) for module, param_name in unsatisfied_params])
 465                 if module_list:
 466                     message.append(QString(module_list))
 467                 if module_list and param_list:
 468                     message.append(self.tr("and by"))
 469                 if param_list:
 470                     message.append(QString(param_list))
 471                 message_str = QStringList(message).join(" ")
 472                 message_str.append(self.tr("\n\nDo you want to automatically fix these conflicts?"))
 473                 qApp.restoreOverrideCursor()
 474                 choice = QMessageBox.warning(self, self.tr("Dependency error"), message_str, QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
 475                 qApp.setOverrideCursor(Qt.WaitCursor)
 476                 if choice == QMessageBox.Yes:
 477                     for module in unsatisfied:
 478                         modules = self.projectInfo("MODULES")
 479                         modules[module]["enabled"] = False
 480                     for category in range(self.pageContent.moduleTree.topLevelItemCount()):
 481                         item = self.pageContent.moduleTree.topLevelItem(category)
 482                         self.setBold(item, False)
 483                         for child in range(item.childCount()):
 484                             if unicode(item.child(child).text(0)) in unsatisfied:
 485                                 self.setBold(item.child(child), False)
 486                                 item.child(child).setCheckState(0, Qt.Unchecked)
 487                             else:
 488                                 if self.isBold(item.child(child)):
 489                                     self.setBold(item, True)
 490                     for module, param in unsatisfied_params:
 491                         configuration_file = self.projectInfo("MODULES")[module]["configuration"]
 492                         configurations = self.projectInfo("CONFIGURATIONS")
 493                         configurations[configuration_file][param]["value"] = "0"
 494                         self.setProjectInfo("CONFIGURATIONS", configurations)
 495         finally:
 496             qApp.restoreOverrideCursor()
 497
 498     def selectDependencyCheck(self, module):
 499         """
 500         Returns the list of unsatisfied dependencies after a selection.
 501         """
 502         unsatisfied = set()
 503         modules = self.projectInfo("MODULES")
 504         files = self.projectInfo("FILES")
 505         configurations = self.projectInfo("CONFIGURATIONS").get(modules[module]["configuration"], {"paramlist": ()})
 506         conditional_deps = ()
 507         for i, param_name in configurations["paramlist"]:
 508             information = configurations[param_name]
 509             if information["informations"]["type"] == "boolean" and \
 510                 information["value"] != "0" and \
 511                 "conditional_deps" in information["informations"]:
 512
 513                 conditional_deps += information["informations"]["conditional_deps"]
 514
 515         for dependency in modules[module]["depends"] + conditional_deps:
 516             if dependency in modules and not modules[dependency]["enabled"]:
 517                 unsatisfied |= set([dependency])
 518                 if dependency not in unsatisfied:
 519                     unsatisfied |= self.selectDependencyCheck(dependency)
 520             if dependency not in modules:
 521                 if dependency in files:
 522                     files[dependency] += 1
 523                 else:
 524                     files[dependency] = 1
 525         self.setProjectInfo("FILES", files)
 526         return unsatisfied
 527
 528     def unselectDependencyCheck(self, dependency):
 529         """
 530         Returns the list of unsatisfied dependencies after an unselection.
 531         """
 532         unsatisfied = set()
 533         unsatisfied_params = set()
 534         modules = self.projectInfo("MODULES")
 535         for module, informations in modules.items():
 536             configurations = self.projectInfo("CONFIGURATIONS").get(informations["configuration"], {"paramlist": ()})
 537             conditional_deps = {}
 538             for i, param_name in configurations["paramlist"]:
 539                 information = configurations[param_name]
 540                 if information["informations"]["type"] == "boolean" and information["value"] != "0" and "conditional_deps" in information["informations"]:
 541                     for dep in information["informations"]["conditional_deps"]:
 542                         if not dep in conditional_deps:
 543                             conditional_deps[dep] = []
 544                         conditional_deps[dep].append((module, param_name))
 545             if dependency in informations["depends"] and informations["enabled"]:
 546                 unsatisfied |= set([module])
 547                 if dependency not in unsatisfied:
 548                     tmp = self.unselectDependencyCheck(module)
 549                     unsatisfied |= tmp[0]
 550                     unsatisfied_params |= tmp[1]
 551             if dependency in conditional_deps:
 552                 unsatisfied_params |= set(conditional_deps[dependency])
 553         return unsatisfied, unsatisfied_params
 554
 555     def removeFileDependencies(self, module):
 556         """
 557         Removes the files dependencies of the given module.
 558         """
 559         modules = self.projectInfo("MODULES")
 560         files = self.projectInfo("FILES")
 561         dependencies = modules[module]["depends"]
 562         for dependency in dependencies:
 563             if dependency in files:
 564                 files[dependency] -= 1
 565                 if files[dependency] == 0:
 566                     del files[dependency]
 567         self.setProjectInfo("FILES", files)
 568
 569 class QControlGroup(QObject):
 570     """
 571     Simple class that permit to connect different signals of different widgets
 572     with a slot that emit a signal. Permits to group widget and to understand which of
 573     them has sent the signal.
 574     """
 575
 576     def __init__(self):
 577         QObject.__init__(self)
 578         self._controls = {}
 579
 580     def addControl(self, id, control):
 581         """
 582         Add a control.
 583         """
 584         self._controls[id] = control
 585         if type(control) == QCheckBox:
 586             self.connect(control, SIGNAL("stateChanged(int)"), lambda: self.stateChanged(id))
 587         elif type(control) == QSpinBox:
 588             self.connect(control, SIGNAL("valueChanged(int)"), lambda: self.stateChanged(id))
 589         elif type(control) == QComboBox:
 590             self.connect(control, SIGNAL("currentIndexChanged(int)"), lambda: self.stateChanged(id))
 591         elif type(control) == QDoubleSpinBox:
 592             self.connect(control, SIGNAL("valueChanged(double)"), lambda: self.stateChanged(id))
 593
 594     def clear(self):
 595         """
 596         Remove all the controls.
 597         """
 598         self._controls = {}
 599
 600     def stateChanged(self, id):
 601         """
 602         Slot called when the value of one of the stored widget changes. It emits
 603         another signal.
 604         """
 605         self.emit(SIGNAL("stateChanged"), id)