class OWDatabasesUpdate(OWWidget): name = "Databases update" description = "Update local system biology databases." icon = "../widgets/icons/Databases.svg" priority = 10 inputs = [] outputs = [] want_main_area = False def __init__(self, parent=None, signalManager=None, name="Databases update", domains=None): OWWidget.__init__(self, parent, signalManager, name, wantMainArea=False) self.searchString = "" self.accessCode = "" self.domains = domains or DOMAINS self.serverFiles = serverfiles.ServerFiles() self.__in_progress_update = False fbox = gui.widgetBox(self.controlArea, "Filter") # The completer model token strings self.completertokens = [] # A 'dynamic' completer item model will be updated with # 'prefix {token}' where prefix is current 'active' filter list # (the QCompleter only completes on one item in the model) self.completermodel = QStringListModel(self) self.completer = QCompleter( self.completermodel, self, caseSensitivity=Qt.CaseInsensitive ) self.lineEditFilter = QLineEdit(textChanged=self.SearchUpdate) self.lineEditFilter.setCompleter(self.completer) fbox.layout().addWidget(self.lineEditFilter) box = gui.widgetBox(self.controlArea, "Files") self.filesView = QTreeWidget(self) self.filesView.setHeaderLabels( ["", "Data Source", "Update", "Last Updated", "Size"]) self.filesView.setRootIsDecorated(False) self.filesView.setUniformRowHeights(True) self.filesView.setSelectionMode(QAbstractItemView.NoSelection) self.filesView.setSortingEnabled(True) self.filesView.sortItems(1, Qt.AscendingOrder) self.filesView.setItemDelegateForColumn( 0, UpdateOptionsItemDelegate(self.filesView)) self.filesView.model().layoutChanged.connect(self.SearchUpdate) box.layout().addWidget(self.filesView) box = gui.widgetBox(self.controlArea, orientation="horizontal") self.updateButton = gui.button( box, self, "Update all", callback=self.UpdateAll, tooltip="Update all updatable files", ) self.downloadButton = gui.button( box, self, "Download all", callback=self.DownloadFiltered, tooltip="Download all filtered files shown" ) self.cancelButton = gui.button( box, self, "Cancel", callback=self.Cancel, tooltip="Cancel scheduled downloads/updates." ) gui.rubber(box) gui.lineEdit(box, self, "accessCode", "Access Code", orientation="horizontal", callback=self.RetrieveFilesList) self.retryButton = gui.button( box, self, "Retry", callback=self.RetrieveFilesList ) self.retryButton.hide() box = gui.widgetBox(self.controlArea, orientation="horizontal") gui.rubber(box) self.infoLabel = QLabel() self.infoLabel.setAlignment(Qt.AlignCenter) self.controlArea.layout().addWidget(self.infoLabel) self.infoLabel.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) self.updateItems = [] self.resize(800, 600) self.progress = ProgressState(self, maximum=3) self.progress.valueChanged.connect(self._updateProgress) self.progress.rangeChanged.connect(self._updateProgress) self.executor = ThreadExecutor( threadPool=QThreadPool(maxThreadCount=2) ) task = Task(self, function=self.RetrieveFilesList) task.exceptionReady.connect(self.HandleError) task.start() self._tasks = [] self._haveProgress = False def RetrieveFilesList(self): self.progress.setRange(0, 3) self.serverFiles = serverfiles.ServerFiles(access_code=self.accessCode) task = Task(function=partial(retrieveFilesList, self.serverFiles, self.domains, methodinvoke(self.progress, "advance"))) task.resultReady.connect(self.SetFilesList) task.exceptionReady.connect(self.HandleError) self.executor.submit(task) self.setEnabled(False) def SetFilesList(self, serverInfo): """ Set the files to show. """ self.setEnabled(True) domains = serverInfo.keys() if not domains: if self.domains: domains = self.domains else: domains = serverfiles.listdomains() localInfo = dict([(dom, serverfiles.allinfo(dom)) for dom in domains]) all_tags = set() self.filesView.clear() self.updateItems = [] for item in join_info_dict(localInfo, serverInfo): tree_item = UpdateTreeWidgetItem(item) options_widget = UpdateOptionsWidget(item.state) options_widget.item = item options_widget.installClicked.connect( partial(self.SubmitDownloadTask, item.domain, item.filename) ) options_widget.removeClicked.connect( partial(self.SubmitRemoveTask, item.domain, item.filename) ) self.updateItems.append((item, tree_item, options_widget)) all_tags.update(item.tags) self.filesView.addTopLevelItems( [tree_item for _, tree_item, _ in self.updateItems] ) for item, tree_item, options_widget in self.updateItems: self.filesView.setItemWidget(tree_item, 0, options_widget) # Add an update button if the file is updateable if item.state == OUTDATED: button = QToolButton( None, text="Update", maximumWidth=120, maximumHeight=30 ) if sys.platform == "darwin": button.setAttribute(Qt.WA_MacSmallSize) button.clicked.connect( partial(self.SubmitDownloadTask, item.domain, item.filename) ) self.filesView.setItemWidget(tree_item, 2, button) self.progress.advance() self.filesView.setColumnWidth(0, self.filesView.sizeHintForColumn(0)) for column in range(1, 4): contents_hint = self.filesView.sizeHintForColumn(column) header_hint = self.filesView.header().sectionSizeHint(column) width = max(min(contents_hint, 400), header_hint) self.filesView.setColumnWidth(column, width) hints = [hint for hint in sorted(all_tags) if not hint.startswith("#")] self.completertokens = hints self.completermodel.setStringList(hints) self.SearchUpdate() self.UpdateInfoLabel() self.toggleButtons() self.cancelButton.setEnabled(False) self.progress.setRange(0, 0) def buttonCheck(self, selected_items, state, button): for item in selected_items: if item.state != state: button.setEnabled(False) else: button.setEnabled(True) break def toggleButtons(self): selected_items = [item for item, tree_item, _ in self.updateItems if not tree_item.isHidden()] self.buttonCheck(selected_items, OUTDATED, self.updateButton) self.buttonCheck(selected_items, AVAILABLE, self.downloadButton) def HandleError(self, exception): if isinstance(exception, IOError): self.error(0, "Could not connect to server! Press the Retry " "button to try again.") self.SetFilesList({}) else: sys.excepthook(type(exception), exception.args, None) self.progress.setRange(0, 0) self.setEnabled(True) def UpdateInfoLabel(self): local = [item for item, tree_item, _ in self.updateItems if item.state != AVAILABLE and not tree_item.isHidden()] size = sum(float(item.size) for item in local) onServer = [item for item, tree_item, _ in self.updateItems if not tree_item.isHidden()] sizeOnServer = sum(float(item.size) for item in onServer) text = ("%i items, %s (on server: %i items, %s)" % (len(local), sizeof_fmt(size), len(onServer), sizeof_fmt(sizeOnServer))) self.infoLabel.setText(text) def UpdateAll(self): for item, tree_item, _ in self.updateItems: if item.state == OUTDATED and not tree_item.isHidden(): self.SubmitDownloadTask(item.domain, item.filename) def DownloadFiltered(self): # TODO: submit items in the order shown. for item, tree_item, _ in self.updateItems: if not tree_item.isHidden() and item.state in \ [AVAILABLE, OUTDATED]: self.SubmitDownloadTask(item.domain, item.filename) def _updateCompleterPrefix(self, prefix, seperator=" "): prefix = str(self.completer.completionPrefix()) tokens = self.completertokens model = self.completer.model() if not prefix.endswith(seperator) and seperator in prefix: prefix, _ = prefix.rsplit(seperator, 1) items = [prefix + seperator + item for item in tokens] else: items = tokens old = set(str(item) for item in model.stringList()) if old != set(items): model.setStringList(items) def SearchUpdate(self, searchString=None): self._updateCompleterPrefix(searchString) strings = str(self.lineEditFilter.text()).split() for item, tree_item, _ in self.updateItems: hide = not all(UpdateItem_match(item, string) for string in strings) tree_item.setHidden(hide) self.UpdateInfoLabel() self.toggleButtons() def SubmitDownloadTask(self, domain, filename): """ Submit the (domain, filename) to be downloaded/updated. """ self.cancelButton.setEnabled(True) index = self.updateItemIndex(domain, filename) _, tree_item, opt_widget = self.updateItems[index] if self.accessCode: sf = serverfiles.ServerFiles(access_code=self.accessCode) else: sf = serverfiles.ServerFiles() task = DownloadTask(domain, filename, sf) self.executor.submit(task) self.progress.adjustRange(0, 100) pb = ItemProgressBar(self.filesView) pb.setRange(0, 100) pb.setTextVisible(False) task.advanced.connect(pb.advance) task.advanced.connect(self.progress.advance) task.finished.connect(pb.hide) task.finished.connect(self.onDownloadFinished, Qt.QueuedConnection) task.exception.connect(self.onDownloadError, Qt.QueuedConnection) self.filesView.setItemWidget(tree_item, 2, pb) # Clear the text so it does not show behind the progress bar. tree_item.setData(2, Qt.DisplayRole, "") pb.show() # Disable the options widget opt_widget.setEnabled(False) self._tasks.append(task) def EndDownloadTask(self, task): future = task.future() index = self.updateItemIndex(task.domain, task.filename) item, tree_item, opt_widget = self.updateItems[index] self.filesView.removeItemWidget(tree_item, 2) opt_widget.setEnabled(True) if future.cancelled(): # Restore the previous state tree_item.setUpdateItem(item) opt_widget.setState(item.state) elif future.exception(): tree_item.setUpdateItem(item) opt_widget.setState(item.state) # Show the exception string in the size column. tree_item.setData( 2, Qt.DisplayRole, "Error occurred while downloading:" + str(future.exception()) ) else: # get the new updated info dict and replace the the old item info = serverfiles.info(item.domain, item.filename) new_item = update_item_from_info(item.domain, item.filename, info, info) self.updateItems[index] = (new_item, tree_item, opt_widget) tree_item.setUpdateItem(new_item) opt_widget.setState(new_item.state) self.UpdateInfoLabel() def SubmitRemoveTask(self, domain, filename): serverfiles.remove(domain, filename) index = self.updateItemIndex(domain, filename) item, tree_item, opt_widget = self.updateItems[index] if item.info_server: new_item = item._replace(state=AVAILABLE, local=None, info_local=None) else: new_item = item._replace(local=None, info_local=None) # Disable the options widget. No more actions can be performed # for the item. opt_widget.setEnabled(False) tree_item.setUpdateItem(new_item) opt_widget.setState(new_item.state) self.updateItems[index] = (new_item, tree_item, opt_widget) self.UpdateInfoLabel() def Cancel(self): """ Cancel all pending update/download tasks (that have not yet started). """ for task in self._tasks: task.future().cancel() def onDeleteWidget(self): self.Cancel() self.executor.shutdown(wait=False) OWWidget.onDeleteWidget(self) def onDownloadFinished(self): # on download completed/canceled/error assert QThread.currentThread() is self.thread() for task in list(self._tasks): future = task.future() if future.done(): self.EndDownloadTask(task) self._tasks.remove(task) if not self._tasks: # Clear/reset the overall progress self.progress.setRange(0, 0) self.cancelButton.setEnabled(False) def onDownloadError(self, exc_info): sys.excepthook(*exc_info) def updateItemIndex(self, domain, filename): for i, (item, _, _) in enumerate(self.updateItems): if item.domain == domain and item.filename == filename: return i raise ValueError("%r, %r not in update list" % (domain, filename)) def _updateProgress(self, *args): rmin, rmax = self.progress.range() if rmin != rmax: if not self._haveProgress: self._haveProgress = True self.progressBarInit() self.progressBarSet(self.progress.ratioCompleted() * 100) # self.progressBarSet(self.progress.ratioCompleted() * 100, # processEventsFlags=None) if rmin == rmax: self._haveProgress = False self.progressBarFinished() def progressBarSet(self, value): if not self.__in_progress_update: self.__in_progress_update = True try: OWWidget.progressBarSet(self, value) finally: self.__in_progress_update = False
class OWDatabasesUpdate(OWWidget): name = "Databases Update" description = "Update local systems biology databases." icon = "../widgets/icons/Databases.svg" priority = 10 inputs = [] outputs = [] want_main_area = False def __init__(self, parent=None, signalManager=None, name="Databases update", domains=None): OWWidget.__init__(self, parent, signalManager, name, wantMainArea=False) self.searchString = "" self.accessCode = "" self.domains = domains or DOMAINS self.serverFiles = serverfiles.ServerFiles() fbox = gui.widgetBox(self.controlArea, "Filter") self.completer = TokenListCompleter( self, caseSensitivity=Qt.CaseInsensitive) self.lineEditFilter = QLineEdit(textChanged=self.SearchUpdate) self.lineEditFilter.setCompleter(self.completer) fbox.layout().addWidget(self.lineEditFilter) box = gui.widgetBox(self.controlArea, "Files") self.filesView = QTreeWidget(self) self.filesView.setHeaderLabels( ["", "Data Source", "Update", "Last Updated", "Size"]) self.filesView.setRootIsDecorated(False) self.filesView.setUniformRowHeights(True) self.filesView.setSelectionMode(QAbstractItemView.NoSelection) self.filesView.setSortingEnabled(True) self.filesView.sortItems(1, Qt.AscendingOrder) self.filesView.setItemDelegateForColumn( 0, UpdateOptionsItemDelegate(self.filesView)) self.filesView.model().layoutChanged.connect(self.SearchUpdate) box.layout().addWidget(self.filesView) box = gui.widgetBox(self.controlArea, orientation="horizontal") self.updateButton = gui.button( box, self, "Update all", callback=self.UpdateAll, tooltip="Update all updatable files", ) self.downloadButton = gui.button( box, self, "Download all", callback=self.DownloadFiltered, tooltip="Download all filtered files shown" ) self.cancelButton = gui.button( box, self, "Cancel", callback=self.Cancel, tooltip="Cancel scheduled downloads/updates." ) self.retryButton = gui.button( box, self, "Reconnect", callback=self.RetrieveFilesList ) self.retryButton.hide() gui.rubber(box) gui.lineEdit(box, self, "accessCode", "Access Code", orientation="horizontal", callback=self.RetrieveFilesList) self.warning(0) box = gui.widgetBox(self.controlArea, orientation="horizontal") gui.rubber(box) self.infoLabel = QLabel() self.infoLabel.setAlignment(Qt.AlignCenter) self.controlArea.layout().addWidget(self.infoLabel) self.infoLabel.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Fixed) self.updateItems = [] self.resize(800, 600) self.progress = ProgressState(self, maximum=3) self.progress.valueChanged.connect(self._updateProgress) self.progress.rangeChanged.connect(self._updateProgress) self.executor = ThreadExecutor( threadPool=QThreadPool(maxThreadCount=2) ) task = Task(self, function=self.RetrieveFilesList) task.exceptionReady.connect(self.HandleError) task.start() self._tasks = [] self._haveProgress = False def RetrieveFilesList(self): self.retryButton.hide() self.warning(0) self.progress.setRange(0, 3) self.serverFiles = serverfiles.ServerFiles(access_code=self.accessCode) task = Task(function=partial(retrieveFilesList, self.serverFiles, self.domains, methodinvoke(self.progress, "advance"))) task.resultReady.connect(self.SetFilesList) task.exceptionReady.connect(self.HandleError) self.executor.submit(task) self.setEnabled(False) def SetFilesList(self, serverInfo): """ Set the files to show. """ self.setEnabled(True) domains = serverInfo.keys() if not domains: if self.domains: domains = self.domains else: domains = serverfiles.listdomains() localInfo = dict([(dom, serverfiles.allinfo(dom)) for dom in domains]) all_tags = set() self.filesView.clear() self.updateItems = [] for item in join_info_dict(localInfo, serverInfo): tree_item = UpdateTreeWidgetItem(item) options_widget = UpdateOptionsWidget(item.state) options_widget.item = item options_widget.installClicked.connect( partial(self.SubmitDownloadTask, item.domain, item.filename) ) options_widget.removeClicked.connect( partial(self.SubmitRemoveTask, item.domain, item.filename) ) self.updateItems.append((item, tree_item, options_widget)) all_tags.update(item.tags) self.filesView.addTopLevelItems( [tree_item for _, tree_item, _ in self.updateItems] ) for item, tree_item, options_widget in self.updateItems: self.filesView.setItemWidget(tree_item, 0, options_widget) # Add an update button if the file is updateable if item.state == OUTDATED: button = QToolButton( None, text="Update", maximumWidth=120, minimumHeight=20, maximumHeight=20 ) if sys.platform == "darwin": button.setAttribute(Qt.WA_MacSmallSize) button.clicked.connect( partial(self.SubmitDownloadTask, item.domain, item.filename) ) self.filesView.setItemWidget(tree_item, 2, button) self.progress.advance() self.filesView.setColumnWidth(0, self.filesView.sizeHintForColumn(0)) for column in range(1, 4): contents_hint = self.filesView.sizeHintForColumn(column) header_hint = self.filesView.header().sectionSizeHint(column) width = max(min(contents_hint, 400), header_hint) self.filesView.setColumnWidth(column, width) hints = [hint for hint in sorted(all_tags) if not hint.startswith("#")] self.completer.setTokenList(hints) self.SearchUpdate() self.UpdateInfoLabel() self.toggleButtons() self.cancelButton.setEnabled(False) self.progress.setRange(0, 0) def buttonCheck(self, selected_items, state, button): for item in selected_items: if item.state != state: button.setEnabled(False) else: button.setEnabled(True) break def toggleButtons(self): selected_items = [item for item, tree_item, _ in self.updateItems if not tree_item.isHidden()] self.buttonCheck(selected_items, OUTDATED, self.updateButton) self.buttonCheck(selected_items, AVAILABLE, self.downloadButton) def HandleError(self, exception): if isinstance(exception, ConnectionError): self.warning(0, "Could not connect to server! Check your connection " "and try to reconnect.") self.SetFilesList({}) self.retryButton.show() else: sys.excepthook(type(exception), exception.args, None) self.progress.setRange(0, 0) self.setEnabled(True) def UpdateInfoLabel(self): local = [item for item, tree_item, _ in self.updateItems if item.state != AVAILABLE and not tree_item.isHidden()] size = sum(float(item.size) for item in local) onServer = [item for item, tree_item, _ in self.updateItems if not tree_item.isHidden()] sizeOnServer = sum(float(item.size) for item in onServer) text = ("%i items, %s (on server: %i items, %s)" % (len(local), sizeof_fmt(size), len(onServer), sizeof_fmt(sizeOnServer))) self.infoLabel.setText(text) def UpdateAll(self): self.warning(0) for item, tree_item, _ in self.updateItems: if item.state == OUTDATED and not tree_item.isHidden(): self.SubmitDownloadTask(item.domain, item.filename) def DownloadFiltered(self): # TODO: submit items in the order shown. for item, tree_item, _ in self.updateItems: if not tree_item.isHidden() and item.state in \ [AVAILABLE, OUTDATED]: self.SubmitDownloadTask(item.domain, item.filename) def SearchUpdate(self, searchString=None): strings = str(self.lineEditFilter.text()).split() for item, tree_item, _ in self.updateItems: hide = not all(UpdateItem_match(item, string) for string in strings) tree_item.setHidden(hide) self.UpdateInfoLabel() self.toggleButtons() def SubmitDownloadTask(self, domain, filename): """ Submit the (domain, filename) to be downloaded/updated. """ self.cancelButton.setEnabled(True) index = self.updateItemIndex(domain, filename) _, tree_item, opt_widget = self.updateItems[index] if self.accessCode: sf = serverfiles.ServerFiles(access_code=self.accessCode) else: sf = serverfiles.ServerFiles() task = DownloadTask(domain, filename, sf) self.progress.adjustRange(0, 100) pb = ItemProgressBar(self.filesView) pb.setRange(0, 100) pb.setTextVisible(False) task.advanced.connect(pb.advance) task.advanced.connect(self.progress.advance) task.finished.connect(pb.hide) task.finished.connect(self.onDownloadFinished, Qt.QueuedConnection) task.exception.connect(self.onDownloadError, Qt.QueuedConnection) self.filesView.setItemWidget(tree_item, 2, pb) # Clear the text so it does not show behind the progress bar. tree_item.setData(2, Qt.DisplayRole, "") pb.show() # Disable the options widget opt_widget.setEnabled(False) self._tasks.append(task) self.executor.submit(task) def EndDownloadTask(self, task): future = task.future() index = self.updateItemIndex(task.domain, task.filename) item, tree_item, opt_widget = self.updateItems[index] self.filesView.removeItemWidget(tree_item, 2) opt_widget.setEnabled(True) if future.cancelled(): # Restore the previous state tree_item.setUpdateItem(item) opt_widget.setState(item.state) elif future.exception(): tree_item.setUpdateItem(item) opt_widget.setState(item.state) # Show the exception string in the size column. self.warning(0, "Error while downloading. Check your connection " "and retry.") # recreate button for download button = QToolButton( None, text="Retry", maximumWidth=120, minimumHeight=20, maximumHeight=20 ) if sys.platform == "darwin": button.setAttribute(Qt.WA_MacSmallSize) button.clicked.connect( partial(self.SubmitDownloadTask, item.domain, item.filename) ) self.filesView.setItemWidget(tree_item, 2, button) else: # get the new updated info dict and replace the the old item self.warning(0) info = serverfiles.info(item.domain, item.filename) new_item = update_item_from_info(item.domain, item.filename, info, info) self.updateItems[index] = (new_item, tree_item, opt_widget) tree_item.setUpdateItem(new_item) opt_widget.setState(new_item.state) self.UpdateInfoLabel() def SubmitRemoveTask(self, domain, filename): serverfiles.remove(domain, filename) index = self.updateItemIndex(domain, filename) item, tree_item, opt_widget = self.updateItems[index] if item.info_server: new_item = item._replace(state=AVAILABLE, local=None, info_local=None) else: new_item = item._replace(local=None, info_local=None) # Disable the options widget. No more actions can be performed # for the item. opt_widget.setEnabled(False) tree_item.setUpdateItem(new_item) opt_widget.setState(new_item.state) self.updateItems[index] = (new_item, tree_item, opt_widget) self.UpdateInfoLabel() def Cancel(self): """ Cancel all pending update/download tasks (that have not yet started). """ for task in self._tasks: task.future().cancel() def onDeleteWidget(self): self.Cancel() self.executor.shutdown(wait=False) OWWidget.onDeleteWidget(self) def onDownloadFinished(self): # on download completed/canceled/error assert QThread.currentThread() is self.thread() for task in list(self._tasks): future = task.future() if future.done(): self.EndDownloadTask(task) self._tasks.remove(task) if not self._tasks: # Clear/reset the overall progress self.progress.setRange(0, 0) self.cancelButton.setEnabled(False) def onDownloadError(self, exc_info): sys.excepthook(*exc_info) self.warning(0, "Error while downloading. Check your connection and " "retry.") def updateItemIndex(self, domain, filename): for i, (item, _, _) in enumerate(self.updateItems): if item.domain == domain and item.filename == filename: return i raise ValueError("%r, %r not in update list" % (domain, filename)) def _updateProgress(self, *args): rmin, rmax = self.progress.range() if rmin != rmax: if not self._haveProgress: self._haveProgress = True self.progressBarInit() self.progressBarSet(self.progress.ratioCompleted() * 100, processEvents=None) if rmin == rmax: self._haveProgress = False self.progressBarFinished()
class NetworkArgs(QtHelper.EnhancedQDialog, Logger.ClassLogger): """ Network arguments dialog """ def __init__(self, dataArgs, parent=None): """ Dialog to fill arguments for the network probe @param dataArgs: @type dataArgs: @param parent: @type parent: """ super(NetworkArgs, self).__init__(parent) self.dataArgs = dataArgs self.createDialog() self.createConnections() self.loadDefaultData() def createDialog (self): """ Create qt dialog """ mainLayout = QHBoxLayout() paramLayout = QHBoxLayout() paramLayout.addWidget( QLabel("Interface:") ) self.intComboBox = QComboBox() self.intComboBox.setEditable(1) self.intComboBox.addItems( [ 'any', 'eth0', 'eth1', 'eth2', 'eth3', 'eth4', 'lo0' ] ) paramLayout.addWidget( self.intComboBox ) paramLayout.addWidget( QLabel("Filter:") ) self.filterEdit = QLineEdit() paramLayout.addWidget( self.filterEdit ) dataLayout = QVBoxLayout() self.labelHelp = QLabel("Network interface to dump:\nIf the interface name does not exist in the list\nplease to edit the combox list to change it.") self.listBox = QTreeWidget(self) self.listBox.setIndentation(0) self.labels = [ self.tr("Interface"), self.tr("Filter") ] self.listBox.setHeaderLabels(self.labels) dataLayout.addWidget( self.labelHelp ) dataLayout.addLayout( paramLayout ) dataLayout.addWidget( self.listBox ) buttonLayout = QVBoxLayout() self.addButton = QPushButton("Add", self) self.delButton = QPushButton("Remove", self) self.delButton.setEnabled(False) self.editButton = QPushButton("Edit", self) self.editButton.setEnabled(False) self.clearButton = QPushButton("Clear", self) self.okButton = QPushButton("Ok", self) self.cancelButton = QPushButton("Cancel", self) buttonLayout.addWidget( self.addButton ) buttonLayout.addWidget( self.delButton ) buttonLayout.addWidget( self.editButton ) buttonLayout.addWidget( self.clearButton ) buttonLayout.addWidget( self.okButton ) buttonLayout.addWidget( self.cancelButton ) mainLayout.addLayout( dataLayout ) mainLayout.addLayout( buttonLayout ) self.setLayout(mainLayout) self.setWindowTitle("Network Probe > Arguments") def createConnections (self): """ Create qt connections """ self.okButton.clicked.connect(self.accept) self.cancelButton.clicked.connect(self.reject) self.addButton.clicked.connect(self.addItem) self.delButton.clicked.connect(self.delItem) self.editButton.clicked.connect(self.editItem) self.clearButton.clicked.connect(self.clearList) self.listBox.itemClicked.connect(self.onItemSelected) def clearList(self): """ Clear the list """ self.listBox.clear() def onItemSelected(self, itm, row): """ Called when an item is selected """ self.delButton.setEnabled(True) self.editButton.setEnabled(True) def editItem(self): """ Edit item """ self.delButton.setEnabled(False) self.editButton.setEnabled(False) # retrieve value to put it in the line edit and then remove item model = self.listBox.model() for selectedItem in self.listBox.selectedItems(): qIndex = self.listBox.indexFromItem(selectedItem) eth = selectedItem.dataNet['interface'] flt = selectedItem.dataNet['filter'] self.filterEdit.setText( flt ) self.intComboBox.setEditText( eth ) model.removeRow(qIndex.row()) def delItem(self): """ Delete item """ self.delButton.setEnabled(False) self.editButton.setEnabled(False) # remove item model = self.listBox.model() for selectedItem in self.listBox.selectedItems(): qIndex = self.listBox.indexFromItem(selectedItem) model.removeRow(qIndex.row()) def addItem(self): """ Add item """ eth = self.intComboBox.currentText() if eth != '': flt = self.filterEdit.text() tpl = {'interface': str(eth), 'filter': str(flt) } newParam = NetItem( data=tpl, parent=self.listBox) self.listBox.resizeColumnToContents(0) def loadDefaultData(self): """ Load the default data """ try: if len(self.dataArgs) ==0: return datObj = eval(str(self.dataArgs)) if 'interfaces' in datObj: for eth in datObj['interfaces']: newParam = NetItem( data=eth, parent=self.listBox) except Exception as e: self.error( "unable to load the default data: %s" % e ) def getArgs(self): """ Returns arguments Example list of files: {'interfaces': [ {'interface':'any', 'filter':''} ] } """ listEth = [] # iterate all items in a QListWidget root = self.listBox.invisibleRootItem() child_count = root.childCount() for i in xrange(child_count): itm = root.child(i) listEth.append( eval(str(itm.dataNet)) ) ret = {'interfaces': listEth } if len(listEth) == 0: ret = '' return str(ret)