Python QComboBox.clear方法代码示例

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]
class DropDownRadioBooleanFilter(QWidget, Control):
    """Container for multiple boolean filters
    """

    def __init__(self, tree, dataset, master, parent=None):
        QWidget.__init__(self, parent)
        Control.__init__(self, tree, dataset, master)

        self.setLayout(QHBoxLayout())
        self.cb = QComboBox(self)

        self.layout().addWidget(self.cb)

        rblayout = QVBoxLayout()
        self.radioButtons = [QRadioButton("Only", self),
                             QRadioButton("Excluded", self)
                             ]

        for b in self.radioButtons:
            rblayout.addWidget(b)

        self.radioButtons[0].setChecked(True)

        self.layout().addLayout(rblayout)

        self.options = []

        self.setOptions(tree.subelements_top("Option"))

    def setOptions(self, options):
        self.cb.clear()
        self.options = []
        for option in options:
            self.cb.addItem(option.displayName)
            self.options.append(option)

        for op, rb in zip(self.options[0].subelements_top("Option"),
                          self.radioButtons):
            rb.setText(op.displayName)
            rb.setChecked(getattr(op, "default", "false") == "true")

    def value(self):
        return {"excluded": "0" if self.radioButtons[0].isChecked() else "1"}

    def query(self):
        filter = self.options[self.cb.currentIndex()]
        filter = biomart.FilterDescription(
            self.tree.registry, "FilterDescription",
            filter.attributes, filter.children)
        return [("Filter", filter, self.value())]

    def setControlValue(self, name, value):
        for i, option in enumerate(self.options):
            if option.internalName == name:
                self.cb.setCurrentIndex(i)
                if value == "Only":
                    self.radioButtons[0].setChecked(True)

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]
class DropDownIdListFilter(QWidget, Control):

    """Container for multiple id list filters
    """

    def __init__(self, tree, dataset, master, parent=None):
        QWidget.__init__(self, parent)
        Control.__init__(self, tree, dataset, master)

        self.setLayout(QVBoxLayout())
        self.setContentsMargins(0, 0, 0, 0)
        self.cb = QComboBox()
        self.idsEdit = QPlainTextEdit()

        self.layout().addWidget(self.cb)
        self.layout().addWidget(self.idsEdit)

        self.options = []
        self.setOptions(tree.subelements_top("Option"))

    def setOptions(self, options):
        self.cb.clear()
        self.options = []
        for option in options:
            self.cb.addItem(option.displayName)
            self.options.append(option)

    def value(self):
        return str(self.idsEdit.toPlainText()).split()

    def query(self):
        filter = self.options[self.cb.currentIndex()]
        filter = biomart.FilterDescription(
            self.tree.registry, "FilterDescription",
            filter.attributes, filter.children)
        return [("Filter", filter, self.value())]

    def setControlValue(self, name, value):
        if isinstance(value, list):
            value = "\n".join(value)

        for i, op in enumerate(self.options):
            if name == op.internalName:
                self.cb.setCurrentIndex(i)
                self.idsEdit.setPlainText(value)

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]
class RecentPathsWComboMixin(RecentPathsWidgetMixin):
    """
    Adds file combo handling to :obj:`RecentPathsWidgetMixin`.

    The mixin constructs a combo box `self.file_combo` and provides a method
    `set_file_list` for updating its content. The mixin also overloads the
    inherited `add_path` and `select_file` to call `set_file_list`.
    """

    def __init__(self):
        super().__init__()
        self.file_combo = \
            QComboBox(self, sizeAdjustPolicy=QComboBox.AdjustToContents)

    def add_path(self, filename):
        """Add (or move) a file name to the top of recent paths"""
        super().add_path(filename)
        self.set_file_list()

    def select_file(self, n):
        """Move the n-th file to the top of the list"""
        super().select_file(n)
        self.set_file_list()

    def set_file_list(self):
        """
        Sets the items in the file list combo
        """
        self._check_init()
        self.file_combo.clear()
        if not self.recent_paths:
            self.file_combo.addItem("(none)")
            self.file_combo.model().item(0).setEnabled(False)
        else:
            for i, recent in enumerate(self.recent_paths):
                self.file_combo.addItem(recent.basename)
                self.file_combo.model().item(i).setToolTip(recent.abspath)
                if not os.path.exists(recent.abspath):
                    self.file_combo.setItemData(i, QBrush(Qt.red),
                                                Qt.TextColorRole)

    def workflowEnvChanged(self, key, value, oldvalue):
        super().workflowEnvChanged(key, value, oldvalue)
        if key == "basedir":
            self.set_file_list()

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
        self.send("Data", data)
        self.modified = False

    def send_report(self):
        specific = []
        for i, var in enumerate(self.varmodel):
            method = self.variable_methods.get(i, None)
            if method is not None:
                specific.append("{} ({})".format(var.name, str(method)))

        default = self.default_method.name
        if specific:
            self.report_items((
                ("Default method", default),
                ("Specific imputers", ", ".join(specific))
            ))
        else:
            self.report_items((("Method", default),))

    def _on_var_selection_changed(self):
        indexes = self.selection.selectedIndexes()
        methods = set(self.get_method_for_column(i.row()).name for i in indexes)

        selected_vars = [self.varmodel[index.row()] for index in indexes]
        has_discrete = any(var.is_discrete for var in selected_vars)

        if len(methods) == 1:
            method = methods.pop()
            for i, m in enumerate(self.METHODS):
                if method == m.name:
                    self.variable_button_group.button(i).setChecked(True)
        elif self.variable_button_group.checkedButton() is not None:
            self.variable_button_group.setExclusive(False)
            self.variable_button_group.checkedButton().setChecked(False)
            self.variable_button_group.setExclusive(True)

        for method, button in zip(self.METHODS,
                                  self.variable_button_group.buttons()):
            enabled = all(method.supports_variable(var) for var in
                          selected_vars)
            button.setEnabled(enabled)

        if not has_discrete:
            self.value_stack.setEnabled(True)
            self.value_stack.setCurrentWidget(self.value_double)
            self._on_value_changed()
        elif len(selected_vars) == 1:
            self.value_stack.setEnabled(True)
            self.value_stack.setCurrentWidget(self.value_combo)
            self.value_combo.clear()
            self.value_combo.addItems(selected_vars[0].values)
            self._on_value_changed()
        else:
            self.variable_button_group.button(self.AS_INPUT).setEnabled(False)
            self.value_stack.setEnabled(False)

    def set_method_for_current_selection(self, method_index):
        indexes = self.selection.selectedIndexes()
        self.set_method_for_indexes(indexes, method_index)

    def set_method_for_indexes(self, indexes, method_index):
        if method_index == self.DEFAULT:
            for index in indexes:
                self.variable_methods.pop(index, None)
        else:
            method = self.METHODS[method_index].copy()
            for index in indexes:
                self.variable_methods[index.row()] = method

        self.update_varview(indexes)
        self._invalidate()

    def update_varview(self, indexes=None):
        if indexes is None:
            indexes = map(self.varmodel.index, range(len(self.varmodel)))

        for index in indexes:
            self.varmodel.setData(index, self.get_method_for_column(index.row()), Qt.UserRole)

    def _on_value_selected(self):
        self.variable_button_group.button(self.AS_INPUT).setChecked(True)
        self._on_value_changed()

    def _on_value_changed(self):
        widget = self.value_stack.currentWidget()
        if widget is self.value_combo:
            value = self.value_combo.currentText()
        else:
            value = self.value_double.value()
            self.default_value = value

        self.METHODS[self.AS_INPUT].default = value
        index = self.variable_button_group.checkedId()
        if index == self.AS_INPUT:
            self.set_method_for_current_selection(index)

    def reset_variable_methods(self):
        indexes = map(self.varmodel.index, range(len(self.varmodel)))
        self.set_method_for_indexes(indexes, self.DEFAULT)
        self.variable_button_group.button(self.DEFAULT).setChecked(True)

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
        imputer = self.methods[self.MODEL_BASED_IMPUTER]
        imputer.learner = self.learner

        button = self.default_button_group.button(self.MODEL_BASED_IMPUTER)
        button.setText(imputer.name)

        variable_button = self.variable_button_group.button(self.MODEL_BASED_IMPUTER)
        variable_button.setText(imputer.name)

        if learner is not None:
            self.default_method_index = self.MODEL_BASED_IMPUTER

        self.update_varview()
        self.commit()

    def get_method_for_column(self, column_index):
        """Returns the imputation method for column by its index.
        """
        if not isinstance(column_index, int):
            column_index = column_index.row()

        return self.variable_methods.get(column_index,
                                         self.methods[self.DEFAULT])

    def _invalidate(self):
        self.modified = True
        if self.__task is not None:
            self.cancel()
        self.commit()

    def commit(self):
        self.cancel()
        self.warning()
        self.Error.imputation_failed.clear()
        self.Error.model_based_imputer_sparse.clear()

        if self.data is None or len(self.data) == 0 or len(self.varmodel) == 0:
            self.Outputs.data.send(self.data)
            self.modified = False
            return

        data = self.data
        impute_state = [
            (i, var, self.variable_methods.get(i, self.default_method))
            for i, var in enumerate(self.varmodel)
        ]

        def impute_one(method, var, data):
            # type: (impute.BaseImputeMethod, Variable, Table) -> Any
            if isinstance(method, impute.Model) and data.is_sparse():
                raise SparseNotSupported()
            elif isinstance(method, impute.DropInstances):
                return RowMask(method(data, var))
            elif not method.supports_variable(var):
                raise VariableNotSupported(var)
            else:
                return method(data, var)

        futures = []
        for _, var, method in impute_state:
            f = self.executor.submit(
                impute_one, copy.deepcopy(method), var, data)
            futures.append(f)

        w = qconcurrent.FutureSetWatcher(futures)
        w.doneAll.connect(self.__commit_finish)

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
        button = self.default_button_group.button(Method.Model)
        button.setText(imputer.name)

        variable_button = self.variable_button_group.button(Method.Model)
        variable_button.setText(imputer.name)

        if learner is not None:
            self.default_method_index = Method.Model

        self.update_varview()
        self.commit()

    def get_method_for_column(self, column_index):
        # type: (int) -> impute.BaseImputeMethod
        """
        Return the imputation method for column by its index.
        """
        assert 0 <= column_index < len(self.varmodel)
        idx = self.varmodel.index(column_index, 0)
        state = idx.data(StateRole)
        if state is None:
            state = (Method.AsAboveSoBelow, ())
        return self.create_imputer(state[0], *state[1])

    def _invalidate(self):
        self.modified = True
        if self.__task is not None:
            self.cancel()
        self.commit()

    def commit(self):
        self.cancel()
        self.warning()
        self.Error.imputation_failed.clear()
        self.Error.model_based_imputer_sparse.clear()

        if self.data is None or len(self.data) == 0 or len(self.varmodel) == 0:
            self.Outputs.data.send(self.data)
            self.modified = False
            return

        data = self.data
        impute_state = [
            (i, var, self.get_method_for_column(i))
            for i, var in enumerate(self.varmodel)
        ]
        # normalize to the effective method bypasing AsDefault
        impute_state = [
            (i, var, m.method if isinstance(m, AsDefault) else m)
            for i, var, m in impute_state
        ]

        def impute_one(method, var, data):
            # type: (impute.BaseImputeMethod, Variable, Table) -> Any
            if isinstance(method, impute.Model) and data.is_sparse():
                raise SparseNotSupported()
            elif isinstance(method, impute.DropInstances):
                return RowMask(method(data, var))
            elif not method.supports_variable(var):
                raise VariableNotSupported(var)
            else:
                return method(data, var)

        futures = []
        for _, var, method in impute_state:
            f = self.executor.submit(

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
            self.servertext.setStyleSheet(err_style)
        else:
            self.servertext.setStyleSheet('')
        if 'role' in text:
            self.usernametext.setStyleSheet(err_style)
        else:
            self.usernametext.setStyleSheet('')
        if 'database' in text:
            self.databasetext.setStyleSheet(err_style)
        else:
            self.databasetext.setStyleSheet('')

    def _parse_host_port(self):
        hostport = self.servertext.text().split(':')
        self.host = hostport[0]
        self.port = hostport[1] if len(hostport) == 2 else None

    def connect(self):
        self._parse_host_port()
        self.database, _, self.schema = self.databasetext.text().partition('/')
        self.username = self.usernametext.text() or None
        self.password = self.passwordtext.text() or None
        try:
            if self.backendcombo.currentIndex() < 0:
                return
            backend = self.backends[self.backendcombo.currentIndex()]
            self.backend = backend(dict(
                host=self.host,
                port=self.port,
                database=self.database,
                user=self.username,
                password=self.password
            ))
            self.Error.connection.clear()
            self._save_credentials()
            self.database_desc = OrderedDict((
                ("Host", self.host), ("Port", self.port),
                ("Database", self.database), ("User name", self.username)
            ))
            self.refresh_tables()
        except BackendError as err:
            error = str(err).split('\n')[0]
            self.Error.connection(error)
            self.database_desc = self.data_desc_table = None
            self.tablecombo.clear()

    def refresh_tables(self):
        self.tables.clear()
        self.Error.missing_extension.clear()
        if self.backend is None:
            self.data_desc_table = None
            return

        self.tables.append("Select a table")
        self.tables.append("Custom SQL")
        self.tables.extend(self.backend.list_tables(self.schema))

    # Called on tablecombo selection change:
    def select_table(self):
        curIdx = self.tablecombo.currentIndex()
        if self.tablecombo.itemText(curIdx) != "Custom SQL":
            self.custom_sql.setVisible(False)
            return self.open_table()
        else:
            self.custom_sql.setVisible(True)
            self.data_desc_table = None

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]
class FileWidget(QWidget):
    on_open = pyqtSignal(str)

    def __init__(self, dialog_title='', dialog_format='',
                 start_dir=os.path.expanduser('~/'),
                 icon_size=(12, 20), minimal_width=200,
                 browse_label='Browse', on_open=None,
                 reload_button=True, reload_label='Reload',
                 recent_files=None, directory_aliases=None,
                 allow_empty=True, empty_file_label='(none)'):
        """ Creates a widget with a button for file loading and
        an optional combo box for recent files and reload buttons.

        Args:
            dialog_title (str): The title of the dialog.
            dialog_format (str): Formats for the dialog.
            start_dir (str): A directory to start from.
            icon_size (int, int): The size of buttons' icons.
            on_open (callable): A callback function that accepts filepath as the only argument.
            reload_button (bool): Whether to show reload button.
            reload_label (str): The text displayed on the reload button.
            recent_files (List[str]): List of recent files.
            directory_aliases (dict): An {alias: dir} dictionary for fast directories' access.
            allow_empty (bool): Whether empty path is allowed.
        """
        super().__init__()
        self.dialog_title = dialog_title
        self.dialog_format = dialog_format
        self.start_dir = start_dir

        self.recent_files = recent_files
        self.directory_aliases = directory_aliases or {}
        self.check_existence()

        self.on_open.connect(on_open)
        self.allow_empty = allow_empty
        self.empty_file_label = empty_file_label

        layout = QHBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)

        if recent_files is not None:
            self.file_combo = QComboBox()
            self.file_combo.setMinimumWidth(minimal_width)
            self.file_combo.activated[int].connect(self.select)
            self.update_combo()
            layout.addWidget(self.file_combo)

        self.browse_button = QPushButton(browse_label)
        self.browse_button.setFocusPolicy(Qt.NoFocus)
        self.browse_button.clicked.connect(self.browse)
        self.browse_button.setIcon(self.style()
                                   .standardIcon(QStyle.SP_DirOpenIcon))
        self.browse_button.setIconSize(QSize(*icon_size))
        self.browse_button.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
        layout.addWidget(self.browse_button)

        if reload_button:
            self.reload_button = QPushButton(reload_label)
            self.reload_button.setFocusPolicy(Qt.NoFocus)
            self.reload_button.clicked.connect(self.reload)
            self.reload_button.setIcon(self.style()
                                       .standardIcon(QStyle.SP_BrowserReload))
            self.reload_button.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
            self.reload_button.setIconSize(QSize(*icon_size))
            layout.addWidget(self.reload_button)

    def browse(self, start_dir=None):
        start_dir = start_dir or self.start_dir
        path, _ = QFileDialog().getOpenFileName(self, self.dialog_title,
                                                start_dir, self.dialog_format)

        if path and self.recent_files is not None:
            if path in self.recent_files:
                self.recent_files.remove(path)
            self.recent_files.insert(0, path)
            self.update_combo()

        self.open_file(path)

    def select(self, n):
        name = self.file_combo.currentText()
        if n < len(self.recent_files):
            name = self.recent_files[n]
            del self.recent_files[n]
            self.recent_files.insert(0, name)
            self.open_file(self.recent_files[0])
            self.update_combo()
        elif name == self.empty_file_label:
            self.open_file(self.empty_file_label)
        elif name in self.directory_aliases:
            self.browse(self.directory_aliases[name])

    def update_combo(self):
        if self.recent_files is not None:
            self.file_combo.clear()
            for file in self.recent_files:
                self.file_combo.addItem(os.path.split(file)[1])

            if self.allow_empty or not self.recent_files:
#.........这里部分代码省略.........

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
        self.retrieval_info_label = gui.label(
                self.controlArea,
                self,
                'Number of records retrieved: /')

        # Load the most recent emails.
        self.set_email_list()

        # Load the most recent queries.
        self.set_keyword_list()

        # Check the email and enable controls accordingly.
        if self.recent_emails:
            email = self.recent_emails[0]
            self.email_is_valid = validate_email(email)

        self.enable_controls()

    def sync_email(self):
        email = self.email_combo.currentText()
        self.email_is_valid = validate_email(email)
        self.enable_controls()

    def enable_controls(self):
        # Enable/disable controls accordingly.
        for control in self.pubmed_controls:
            control.setEnabled(self.email_is_valid)
        if self.pubmed_api is None or self.pubmed_api.search_record_count == 0:
            self.retrieve_records_button.setEnabled(False)
        if not self.email_is_valid:
            self.email_combo.setFocus()

    def run_search(self):
        self.Error.clear()
        self.Warning.clear()
        self.run_search_button.setEnabled(False)
        self.retrieve_records_button.setEnabled(False)

        # Add the email to history.
        email = self.email_combo.currentText()
        if email not in self.recent_emails:
            self.recent_emails.insert(0, email)

        # Check if the PubMed object is present.
        if self.pubmed_api is None:
            self.pubmed_api = Pubmed(
                    email=email,
                    progress_callback=self.api_progress_callback,
                    error_callback=self.api_error_callback,
            )

        if self.search_tabs.currentIndex() == 0:
            # Get query parameters.
            terms = self.keyword_combo.currentText().split()
            authors = self.author_input.text().split()

            error = self.pubmed_api._search_for_records(
                    terms, authors, self.pub_date_from, self.pub_date_to
            )
            if error is not None:
                self.Error.api_error(str(error))
                return

            if self.keyword_combo.currentText() not in self.recent_keywords:
                self.recent_keywords.insert(
                        0,

# 需要导入模块: from AnyQt.QtWidgets import QComboBox [as 别名]
# 或者: from AnyQt.QtWidgets.QComboBox import clear [as 别名]

#.........这里部分代码省略.........
        self.check_existence()
        self.on_open.connect(on_open)

        layout = QHBoxLayout(self)
        layout.setContentsMargins(0, 0, 0, 0)

        if recent_files is not None:
            self.file_combo = QComboBox()
            self.file_combo.setMinimumWidth(minimal_width)
            self.file_combo.activated[int].connect(self.select)
            self.update_combo()
            layout.addWidget(self.file_combo)

        self.browse_button = QPushButton(browse_label)
        self.browse_button.setFocusPolicy(Qt.NoFocus)
        self.browse_button.clicked.connect(self.browse)
        self.browse_button.setIcon(self.style()
                                   .standardIcon(QStyle.SP_DirOpenIcon))
        self.browse_button.setIconSize(QSize(*icon_size))
        self.browse_button.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
        layout.addWidget(self.browse_button)

        if reload_button:
            self.reload_button = QPushButton(reload_label)
            self.reload_button.setFocusPolicy(Qt.NoFocus)
            self.reload_button.clicked.connect(self.reload)
            self.reload_button.setIcon(self.style()
                                       .standardIcon(QStyle.SP_BrowserReload))
            self.reload_button.setSizePolicy(QSizePolicy.Fixed, QSizePolicy.Fixed)
            self.reload_button.setIconSize(QSize(*icon_size))
            layout.addWidget(self.reload_button)

    def browse(self, start_dir=None):
        start_dir = start_dir or self.start_dir
        path, _ = QFileDialog().getOpenFileName(self, self.dialog_title,
                                                start_dir, self.dialog_format)

        if path and self.recent_files is not None:
            if path in self.recent_files:
                self.recent_files.remove(path)
            self.recent_files.insert(0, path)
            self.update_combo()

        if path:
            self.open_file(path)

    def select(self, n):
        name = self.file_combo.currentText()
        if name == self.empty_file_label:
            del self.recent_files[n]
            self.recent_files.insert(0, self.empty_file_label)
            self.update_combo()
            self.open_file(self.empty_file_label)
        elif name in self.directory_aliases:
            self.browse(self.directory_aliases[name])
        elif n < len(self.recent_files):
            name = self.recent_files[n]
            del self.recent_files[n]
            self.recent_files.insert(0, name)
            self.update_combo()
            self.open_file(self.recent_files[0])

    def update_combo(self):
        """ Sync combo values to the changes in self.recent_files. """
        if self.recent_files is not None:
            self.file_combo.clear()
            for i, file in enumerate(self.recent_files):
                # remove (none) when we have some files and allow_empty=False
                if file == self.empty_file_label and \
                        not self.allow_empty and len(self.recent_files) > 1:
                    del self.recent_files[i]
                else:
                    self.file_combo.addItem(os.path.split(file)[1])

            for alias in self.directory_aliases.keys():
                self.file_combo.addItem(alias)

    def reload(self):
        if self.recent_files:
            self.select(0)

    def check_existence(self):
        if self.recent_files:
            to_remove = []
            for file in self.recent_files:
                doc_path = os.path.join(get_sample_corpora_dir(), file)
                exists = any(os.path.exists(f) for f in [file, doc_path])
                if file != self.empty_file_label and not exists:
                    to_remove.append(file)
            for file in to_remove:
                self.recent_files.remove(file)

    def open_file(self, path):
        self.on_open.emit(path if path != self.empty_file_label else '')

    def get_selected_filename(self):
        if self.recent_files:
            return self.recent_files[0]
        else:
            return self.empty_file_label