Exemplo n.º 1
0
class MyMainWindow(QMainWindow):

    def __init__(self, parent=None):
        QMainWindow.__init__(self, parent)
        self.config_window()
        self.create_widgets()
        self.config_widgets()
        self.create_menubar()
        self.bind_widgets()
        self.show_widgets()

    def config_window(self):
        self.setWindowTitle('DirectoPy')
        self.setMinimumHeight(600)
        self.setMinimumWidth(1000)

    def create_widgets(self):
        self.central_widget = QWidget()
        self.main_layout = QGridLayout()
        self.moveup_button = QPushButton('Collapse all', self)
        self.goto_lineedit = QLineEdit('', self)
        self.goto_button = QPushButton('Go', self)
        self.folder_view = QTreeView(self)
        self.file_view = QTreeView(self)
        self.folder_model = QFileSystemModel(self)
        self.file_model = QFileSystemModel(self)

    def config_widgets(self):
        self.main_layout.addWidget(self.moveup_button, 0, 0)
        self.main_layout.addWidget(self.goto_lineedit, 0, 1, 1, 2)
        self.main_layout.addWidget(self.goto_button, 0, 3)
        self.main_layout.addWidget(self.folder_view, 1, 0, 1, 2)
        self.main_layout.addWidget(self.file_view, 1, 2, 1, 2)

        self.central_widget.setLayout(self.main_layout)

        # Кнопка "вверх"
        self.moveup_button.setMaximumWidth(100)

        # Кнопка "перейти"
        self.goto_button.setMaximumWidth(70)
        self.setCentralWidget(self.central_widget)
        # панели
        self.folder_model.setRootPath(None)
        self.folder_model.setFilter(QDir.AllDirs | QDir.NoDotAndDotDot)
        self.folder_view.setModel(self.folder_model)
        self.folder_view.setRootIndex(self.folder_model.index(None))
        self.folder_view.clicked[QModelIndex].connect(self.clicked_onfolder)
        self.folder_view.hideColumn(1)
        self.folder_view.hideColumn(2)
        self.folder_view.hideColumn(3)

        self.file_model.setFilter(QDir.Files)
        self.file_view.setModel(self.file_model)
        self.file_model.setReadOnly(False)
        self.file_view.setColumnWidth(0, 200)
        self.file_view.setSelectionMode(QAbstractItemView.ExtendedSelection)

    # открытие папки при нажати на неё в окне папок
    def clicked_onfolder(self, index):
        selection_model = self.folder_view.selectionModel()
        index = selection_model.currentIndex()
        dir_path = self.folder_model.filePath(index)
        self.file_model.setRootPath(dir_path)
        self.file_view.setRootIndex(self.file_model.index(dir_path))

    # ф-я открытия нового файла
    def open_file(self):
        index = self.file_view.selectedIndexes()
        if not index:
            return
        else:
            index = index[0]
        file_path = self.file_model.filePath(index).replace('/', '\\')
        print(file_path)
        self.file_view.update()

    # ф-я создания нового файла
    def new_file(self):
        global file_name
        index = self.folder_view.selectedIndexes()
        if len(index) > 0:
            path = self.folder_model.filePath(index[0])
            for i in range(1, 9999999999999999):
                if not os.path.isfile(os.path.join(path, "newfile{}.txt".format(i))):
                    file_name = os.path.join(path, "newfile{}.txt".format(i))
                    break
            file_name = os.path.abspath(file_name)
            open(file_name, 'w').close()
        else:
            print("Please, select folder")

    # ф-я удаления файла
    def delete_file(self):
        indexes = self.file_view.selectedIndexes()
        for i in indexes:
            self.file_model.remove(i)

    # ф-я переименования файла
    def rename_file(self):
        index = self.file_view.selectedIndexes()
        if not index:
            return
        else:
            index = index[0]
        self.file_view.edit(index)

    # ф-я копирования файла
    def copy_file(self):
        print("COPY")
        ask = QFileDialog.getExistingDirectory(self, "Open Directory", "C:\\",
                                               QFileDialog.ShowDirsOnly |
                                               QFileDialog.DontResolveSymlinks)
        new_path = ask.replace('\\', '/')
        indexes = self.file_view.selectedIndexes()[::4]
        for i in indexes:
            new_filename = new_path + '/' + self.file_model.fileName(i)
            copy2(self.file_model.filePath(i), new_filename)

    # ф-я возвращения к корню пути
    def colapse(self):
        self.folder_view.collapseAll()

    # ф-я перемещения в заданную директорию
    def go_to(self):
        dir_path = self.goto_lineedit.text().replace('\\', '/')
        print(dir_path)
        self.file_model.setRootPath(dir_path)
        self.file_view.setRootIndex(self.file_model.index(dir_path))

        #self.file_model.setRootPath()

    # ф-я перемещения файла
    def move_file(self):
        print("MOVE")
        ask = QFileDialog.getExistingDirectory(self, "Open Directory", "C:\\",
                                               QFileDialog.ShowDirsOnly |
                                               QFileDialog.DontResolveSymlinks)
        if ask == '':
            return
        new_path = ask.replace('\\', '/')
        indexes = self.file_view.selectedIndexes()[::4]
        for i in indexes:
            new_filename = new_path + '/' + self.file_model.fileName(i)
            move(self.file_model.filePath(i), new_filename)

    # ф-я создания новой папки
    def new_folder(self):
        global file_name
        index = self.folder_view.selectedIndexes()
        if len(index) > 0:
            path = self.folder_model.filePath(index[0])
            for i in range(1, 9999999999999999):
                if not os.path.isdir(os.path.join(path, "newfolder{}".format(i))):
                    file_name = os.path.join(path, "newfolder{}".format(i))
                    break
            file_name = os.path.abspath(file_name)
            os.mkdir(file_name)
        else:
            print("Please, select folder")

    # ф-я удаления папки
    def delete_folder(self):
        indexes = self.folder_view.selectedIndexes()
        for i in indexes:
            self.folder_model.remove(i)

    # ф-я переименования папки
    def rename_folder(self):
        index = self.folder_view.selectedIndexes()
        if not index:
            return
        else:
            index = index[0]
        self.folder_view.edit(index)

    # ф-я закрытия окна файлового менеджера
    def exit_application(self):
       print("EXIT")
       self.close()

    # задавание функции каждой кнопке
    def bind_widgets(self):
        self.open_file_action.triggered.connect(self.open_file)
        self.new_file_action.triggered.connect(self.new_file)
        self.delete_file_action.triggered.connect(self.delete_file)
        self.rename_file_action.triggered.connect(self.rename_file)
        self.copy_file_action.triggered.connect(self.copy_file)
        self.move_file_action.triggered.connect(self.move_file)
        self.exit_action.triggered.connect(self.exit_application)
        self.new_folder_action.triggered.connect(self.new_folder)
        self.delete_folder_action.triggered.connect(self.delete_folder)
        self.rename_folder_action.triggered.connect(self.rename_folder)


        self.goto_button.clicked.connect(partial(self.go_to))
        self.moveup_button.clicked.connect(partial(self.colapse))

    # создание меню
    def create_menubar(self):

        self.exit_action = QAction('Exit', self)
        self.exit_action.setShortcut('Ctrl+Q')

        self.new_file_action = QAction('New file', self)
        self.new_file_action.setShortcut('F4')

        self.open_file_action = QAction('Open file', self)
        self.open_file_action.setShortcut('F3')

        self.rename_file_action = QAction('Rename file', self)
        self.rename_file_action.setShortcut('F2')

        self.delete_file_action = QAction('Remove file', self)
        self.delete_file_action.setShortcut(QKeySequence.Delete)

        self.copy_file_action = QAction('Copy folder...', self)
        self.copy_file_action.setShortcut(QKeySequence.Copy)

        self.move_file_action = QAction('Move folder...', self)
        self.move_file_action.setShortcut(QKeySequence.Cut)

        self.new_folder_action = QAction('New folder', self)
        self.new_folder_action.setShortcut('Ctrl+Shift+N')

        self.delete_folder_action = QAction('Delete folder', self)
        self.delete_folder_action.setShortcut('Ctrl+Shift+Del')

        self.rename_folder_action = QAction('Rename folder', self)
        self.rename_folder_action.setShortcut('Ctrl+Shift+R')

        self.menubar = self.menuBar()
        self.file_menu = self.menubar.addMenu('File')
        self.file_menu.addAction(self.new_file_action)
        self.file_menu.addAction(self.open_file_action)
        self.file_menu.addAction(self.rename_file_action)
        self.file_menu.addAction(self.delete_file_action)
        self.file_menu.addAction(self.copy_file_action)
        self.file_menu.addAction(self.move_file_action)
        self.file_menu.addSeparator()
        self.file_menu.addAction(self.exit_action)

        self.folder_menu = self.menubar.addMenu('Folder')
        self.folder_menu.addAction(self.new_folder_action)
        self.folder_menu.addAction(self.delete_folder_action)
        self.folder_menu.addAction(self.rename_folder_action)

    def show_widgets(self):
        self.setLayout(self.main_layout)
Exemplo n.º 2
0
class StatsGui(QWidget):
    ''' 
    This class accepts a glue data collection object, and builds an interactive window
    to display basic statistics (e.g. mean, median, mode) about each dataset
    '''

    released = QtCore.pyqtSignal(object)

    def __init__(self, dc):

        # Initialize the object as a QWidget
        QWidget.__init__(self)

        #Save the datacollection object as an attribute of class StatsGui
        self.dc = dc

        #Set the title of the main GUI window
        self.setWindowTitle('Statistics')

        # Set up dicts for row indices
        self.subset_dict = dict()
        self.component_dict = dict()

        self.selected_dict = dict()
        self.selected_indices = []

        #Set up tree view and fix it to the top half of the window
        self.treeview = QTreeView(self)

        # Set the default clicking behavior to be row selection
        self.treeview.setSelectionBehavior(QAbstractItemView.SelectRows)

        # Set up expand all, collapse all, select all and deselect all buttons

        # Layout for expand/collapse/select/deselect
        layout_left_options = QHBoxLayout()

        self.expand_data = QToolButton(self)
        self.expand_data.setText("Expand all data and subsets")
        self.expand_data.clicked.connect(self.expandClicked)
        layout_left_options.addWidget(self.expand_data)

        self.all = QToolButton(self)
        self.all.setText('Select all')
        self.all.clicked.connect(self.allClicked)
        layout_left_options.addWidget(self.all)

        self.none = QToolButton(self)
        self.none.setText('Deselect all')
        self.none.clicked.connect(self.noneClicked)
        layout_left_options.addWidget(self.none)

        # Set default significant figures to 5
        getcontext().prec = 5

        # Set up past selected items
        self.past_selected = []

        # Sort by subsets as a default
        self.sortBySubsets()

        # Set up the combo box for users to choose the number of significant figures in the table

        # Set up bottom options layout
        layout_bottom_options = QHBoxLayout()

        self.siglabel = QLabel(self)
        self.siglabel.setText('Number of significant figures:')
        layout_bottom_options.addWidget(self.siglabel)

        self.sigfig = QSpinBox(self)
        self.sigfig.setRange(1, 10)
        self.sigfig.setValue(5)
        self.sigfig.valueChanged.connect(self.sigchange)
        layout_bottom_options.addWidget(self.sigfig)

        # Export to file button
        self.export = QPushButton(self)
        self.export.setText('Export to file')
        self.export.clicked.connect(self.exportToFile)
        layout_bottom_options.addWidget(self.export)

        # Set up the toggle button to switch tree sorting modes
        self.switch_mode = QToolButton(self)
        self.switch_mode.setText('Sort tree by components')
        self.switch_mode.clicked.connect(self.switchMode)
        layout_left_options.addWidget(self.switch_mode)

        # Add instructions to sort the table
        self.how = QLabel(self)
        self.how.setText('Click each header to sort table')
        layout_left_options.addWidget(self.how)

        #################Set up the QTableView Widget#############################
        self.table = QTableView(self)
        self.table.setSortingEnabled(True)
        self.table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
        self.table.verticalHeader().setVisible(False)

        #Set the table headings
        self.headings = ('Subset', 'Dataset', 'Component', 'Mean', 'Median',
                         'Minimum', 'Maximum', 'Sum')
        self.data_frame = pd.DataFrame(columns=self.headings)
        self.data_accurate = pd.DataFrame(columns=self.headings)
        self.model = pandasModel(self.data_frame, self.dc)

        self.table.setModel(self.model)

        layout_table = QHBoxLayout()
        layout_table.addWidget(self.table)
        layout_table.stretch(10)

        # Finish nesting all the layouts
        main_layout = QVBoxLayout()

        main_layout.addWidget(self.treeview)
        main_layout.addLayout(layout_left_options)
        main_layout.addLayout(layout_table)
        main_layout.addLayout(layout_bottom_options)

        self.setLayout(main_layout)

        # Set up dict for caching
        self.cache_stash = dict()

    def myPressedEvent(self, currentQModelIndex):
        ''' 
        Every time a row (or rows) in the tree view is clicked:
        if it is selected, add it to the table
        if it is deselected, remove it from the table
        '''

        # Get the indexes of all the selected components
        self.selected_indices = self.treeview.selectionModel().selectedRows()

        newly_selected = np.setdiff1d(self.selected_indices,
                                      self.past_selected)

        for index in range(0, len(newly_selected)):

            # Check which view mode the tree is in to get the correct indices
            if self.switch_mode.text() == 'Sort tree by components':
                data_i = newly_selected[index].parent().row()
                comp_i = newly_selected[index].row()
                subset_i = newly_selected[index].parent().parent().row()

            else:
                data_i = newly_selected[index].parent().parent().row()
                comp_i = newly_selected[index].parent().row()
                subset_i = newly_selected[index].row() - 1

            is_subset = newly_selected[index].parent().parent().parent().row(
            ) == 1 or (self.switch_mode.text() == 'Sort tree by subsets'
                       and subset_i != -1)

            # Check if its a subset and if so run subset stats
            if is_subset:
                self.runSubsetStats(subset_i, data_i, comp_i)
            else:
                # Run standard data stats
                self.runDataStats(data_i, comp_i)

        newly_dropped = np.setdiff1d(self.past_selected, self.selected_indices)

        for index in range(0, len(newly_dropped)):

            # Check which view mode the tree is in to get the correct indices
            if self.switch_mode.text() == 'Sort tree by components':
                data_i = newly_dropped[index].parent().row()
                comp_i = newly_dropped[index].row()
                subset_i = newly_dropped[index].parent().parent().row()

            else:
                data_i = newly_dropped[index].parent().parent().row()
                comp_i = newly_dropped[index].parent().row()
                subset_i = newly_dropped[index].row() - 1

            is_subset = newly_dropped[index].parent().parent().parent().row(
            ) == 1 or (self.switch_mode.text() == 'Sort tree by subsets'
                       and subset_i != -1)

            if is_subset:
                try:
                    # Get the indices that match the component, dataset, and subset requirements
                    idx_c = np.where(self.data_frame['Component'] ==
                                     self.dc[data_i].components[comp_i].label)
                    idx_d = np.where(
                        self.data_frame['Dataset'] == self.dc[data_i].label)
                    idx_s = np.where(self.data_frame['Subset'] ==
                                     self.dc[data_i].subsets[subset_i].label)
                    idx1 = np.intersect1d(idx_c, idx_d)
                    idx2 = np.intersect1d(idx1, idx_s)

                    self.data_frame = self.data_frame.drop(idx2)
                except:
                    pass

            else:
                try:
                    # Find the index in the table of the unchecked element, if it's in the table

                    # Find the matching component and dataset indices and intersect them to get the unique index
                    idx_c = np.where(self.data_frame['Component'] ==
                                     self.dc[data_i].components[comp_i].label)
                    idx_d = np.where(
                        self.data_frame['Dataset'] == self.dc[data_i].label)
                    idx_s = np.where(self.data_frame['Subset'] == '--')
                    idx1 = np.intersect1d(idx_c, idx_d)
                    idx2 = np.intersect1d(idx1, idx_s)

                    self.data_frame = self.data_frame.drop(idx2)
                except:
                    pass

        # Update the past selected indices
        self.past_selected = self.selected_indices

        model = pandasModel(self.data_frame, self.dc)

        self.table.setModel(model)

        self.table.setSortingEnabled(True)
        self.table.setShowGrid(False)

    def runDataStats(self, data_i, comp_i):
        '''
        Runs statistics for the component comp_i of data set data_i
        '''

        subset_label = "--"
        data_label = dc[data_i].label
        comp_label = self.dc[data_i].components[
            comp_i].label  # add to the name array to build the table

        # Build the cache key
        cache_key = subset_label + data_label + comp_label

        # See if the values have already been cached
        try:
            column_data = self.cache_stash[cache_key]

        except:
            # Find the stat values
            # Save the data in the cache
            mean_val = self.dc[data_i].compute_statistic(
                'mean', self.dc[data_i].components[comp_i])
            median_val = self.dc[data_i].compute_statistic(
                'median', self.dc[data_i].components[comp_i])
            min_val = self.dc[data_i].compute_statistic(
                'minimum', self.dc[data_i].components[comp_i])
            max_val = self.dc[data_i].compute_statistic(
                'maximum', self.dc[data_i].components[comp_i])
            sum_val = self.dc[data_i].compute_statistic(
                'sum', self.dc[data_i].components[comp_i])

            column_data = np.asarray([[subset_label],
                                      [data_label], [comp_label], [mean_val],
                                      [median_val], [min_val], [max_val],
                                      [sum_val]]).transpose()

            self.cache_stash[cache_key] = column_data

        # Save the accurate data in self.data_accurate
        column_df = pd.DataFrame(column_data, columns=self.headings)
        self.data_accurate = self.data_accurate.append(column_df,
                                                       ignore_index=True)

        # Round the values according to the number of significant figures set by the user
        mean_val = Decimal(float(column_data[0][3])) * Decimal(1)
        median_val = Decimal(float(column_data[0][4])) * Decimal(1)
        min_val = Decimal(float(column_data[0][5])) * Decimal(1)
        max_val = Decimal(float(column_data[0][6])) * Decimal(1)
        sum_val = Decimal(float(column_data[0][7])) * Decimal(1)

        # Create the column data array and append it to the data frame
        column_data = np.asarray([[subset_label], [data_label], [comp_label],
                                  [mean_val], [median_val], [min_val],
                                  [max_val], [sum_val]]).transpose()
        column_df = pd.DataFrame(column_data, columns=self.headings)
        self.data_frame = self.data_frame.append(column_df, ignore_index=True)

    def runSubsetStats(self, subset_i, data_i, comp_i):
        '''
        Runs statistics for the subset subset_i with respect to the component comp_i of data set data_i
        '''

        subset_label = dc[data_i].subsets[subset_i].label
        data_label = dc[data_i].label
        comp_label = self.dc[data_i].components[
            comp_i].label  # add to the name array to build the table

        # Build the cache key
        cache_key = subset_label + data_label + comp_label

        # See if the statistics are already in the cache
        try:
            column_data = self.cache_stash[cache_key]

        # Find the stats if not in the cache
        # Save in the cache

        except:
            mean_val = self.dc[data_i].compute_statistic(
                'mean',
                self.dc[data_i].subsets[subset_i].components[comp_i],
                subset_state=self.dc[data_i].subsets[subset_i].subset_state)
            median_val = self.dc[data_i].compute_statistic(
                'median',
                self.dc[data_i].subsets[subset_i].components[comp_i],
                subset_state=self.dc.subset_groups[subset_i].subset_state)
            min_val = self.dc[data_i].compute_statistic(
                'minimum',
                self.dc[data_i].subsets[subset_i].components[comp_i],
                subset_state=self.dc.subset_groups[subset_i].subset_state)
            max_val = self.dc[data_i].compute_statistic(
                'maximum',
                self.dc[data_i].subsets[subset_i].components[comp_i],
                subset_state=self.dc.subset_groups[subset_i].subset_state)
            sum_val = self.dc[data_i].compute_statistic(
                'sum',
                self.dc[data_i].subsets[subset_i].components[comp_i],
                subset_state=self.dc.subset_groups[subset_i].subset_state)

            column_data = np.asarray([[subset_label],
                                      [data_label], [comp_label], [mean_val],
                                      [median_val], [min_val], [max_val],
                                      [sum_val]]).transpose()

            self.cache_stash[cache_key] = column_data

        # Save the data in self.data_accurate
        column_df = pd.DataFrame(column_data, columns=self.headings)
        self.data_accurate = self.data_accurate.append(column_df,
                                                       ignore_index=True)

        # Round the values according to the number of significant figures set by the user
        mean_val = Decimal(float(column_data[0][3])) * Decimal(1)
        median_val = Decimal(float(column_data[0][4])) * Decimal(1)
        min_val = Decimal(float(column_data[0][5])) * Decimal(1)
        max_val = Decimal(float(column_data[0][6])) * Decimal(1)
        sum_val = Decimal(float(column_data[0][7])) * Decimal(1)

        # Create the column data array and append it to the data frame
        column_data = np.asarray([[subset_label], [data_label], [comp_label],
                                  [mean_val], [median_val], [min_val],
                                  [max_val], [sum_val]]).transpose()
        column_df = pd.DataFrame(column_data, columns=self.headings)
        self.data_frame = self.data_frame.append(column_df, ignore_index=True)

    def sigchange(self, i):
        # Set the number of significant figures according to what the user selects
        getcontext().prec = i

        # Retrospectively change the number of significant figures in the table

        data_labels = self.data_frame['Dataset']
        comp_labels = self.data_frame['Component']
        subset_labels = self.data_frame['Subset']

        mean_vals = []
        median_vals = []
        min_vals = []
        max_vals = []
        sum_vals = []

        # Get the values from the self.data_accurate array and append them
        for i in range(0, len(self.data_frame)):
            mean_vals.append(
                Decimal(self.data_accurate['Mean'][i]) * Decimal(1))
            median_vals.append(
                Decimal(self.data_accurate['Median'][i]) * Decimal(1))
            min_vals.append(
                Decimal(self.data_accurate['Minimum'][i]) * Decimal(1))
            max_vals.append(
                Decimal(self.data_accurate['Maximum'][i]) * Decimal(1))
            sum_vals.append(Decimal(self.data_accurate['Sum'][i]) * Decimal(1))

        column_data = np.asarray([
            subset_labels, data_labels, comp_labels, mean_vals, median_vals,
            min_vals, max_vals, sum_vals
        ]).transpose()
        self.data_frame = pd.DataFrame(column_data, columns=self.headings)
        model = pandasModel(self.data_frame, self.dc)
        self.table.setModel(model)
        self.table.setSortingEnabled(True)
        self.table.setShowGrid(False)

    def expandClicked(self):
        if self.expand_data.text() == "Expand all data and subsets":
            self.treeview.expandAll()
            self.expand_data.setText("Collapse all data and subsets")
        else:
            self.treeview.collapseAll()
            self.expand_data.setText("Expand all data and subsets")

    def allClicked(self):
        # Select all components of the treeview if checked and fill the table with newly checked items
        # Does not deselect if user unclicks it

        original_idx = self.treeview.selectionModel().selectedRows()

        self.treeview.selectAll()
        end_idx = self.treeview.selectionModel().selectedRows()
        for index in end_idx:
            if index not in original_idx:
                # Check to see if the clicked item is a subset component or a data component
                if index.parent().parent().parent().row() != 1:
                    self.runDataStats(index.parent().row(), index.row())
                else:
                    self.runSubsetStats(index.parent().parent().row(),
                                        index.parent().row(), index.row())

        # Set the table to display the correct data frame
        model = pandasModel(self.data_frame, self.dc)
        self.table.setModel(model)
        self.table.setSortingEnabled(True)
        self.table.setShowGrid(False)

    def noneClicked(self):
        self.treeview.clearSelection()
        self.data_frame = pd.DataFrame(columns=self.headings)
        model = pandasModel(self.data_frame, self.dc)
        self.table.setModel(model)
        self.table.setSortingEnabled(True)
        self.table.setShowGrid(False)

    def exportToFile(self):
        file_name, fltr = compat.getsavefilename(
            caption="Choose an output filename")

        try:
            self.data_frame.to_csv(str(file_name), index=False)
        except:
            print("passed")
            pass

    def switchMode(self):
        # if the user clicks to sort by components, change the text to "sort by subsets" and sort tree by components
        if self.switch_mode.text() == 'Sort tree by components':
            self.sortByComponents()
            self.switch_mode.setText('Sort tree by subsets')
        # otherwise the user wants to sort by subsets, change text to "sort by components" and sort tree by subsets
        else:
            self.sortBySubsets()
            self.switch_mode.setText('Sort tree by components')

    def sizeHint(self):
        return QSize(600, 800)

    def sortBySubsets(self):
        '''
        Sorts the treeview by subsets- Dataset then subset then component.
        What we originally had as the default
        '''
        # Save the selected rows from the component view
        try:
            selected = dict()
            for i in range(0, len(self.selected_indices)):
                item = self.model_components.itemFromIndex(
                    self.selected_indices[i])
                if item.row() != 0:
                    key = item.text() + " (" + item.parent().parent().text(
                    ) + ")" + item.parent().text()
                    selected[key] = item.index()
                else:
                    key = item.text() + item.parent().text()
                    selected[key] = item.index()
        except:
            pass

        # Set Expand/collapse button to "expand all"
        self.expand_data.setText("Expand all data and subsets")

        #Allow the user to select multiple rows at a time
        self.selection_model = QAbstractItemView.MultiSelection
        self.treeview.setSelectionMode(self.selection_model)

        # See if the model already exists instead of regenerating
        try:
            self.treeview.setModel(self.model_subsets)

        except:
            self.model_subsets = QStandardItemModel()
            self.model_subsets.setHorizontalHeaderLabels([''])

            self.treeview.setModel(self.model_subsets)
            self.treeview.setUniformRowHeights(True)

            # populate the tree
            # Make all the datasets be parents, and make it so they are not selectable
            parent_data = QStandardItem('{}'.format('Data'))
            parent_data.setEditable(False)
            parent_data.setSelectable(False)

            for i in range(0, len(self.dc)):
                parent = QStandardItem('{}'.format(self.dc.labels[i]))
                parent.setIcon(helpers.layer_icon(self.dc[i]))
                parent.setEditable(False)
                parent.setSelectable(False)

                # Make all the data components be children, nested under their parent
                for j in range(0, len(self.dc[i].components)):
                    child = QStandardItem('{}'.format(
                        str(self.dc[i].components[j])))
                    child.setEditable(False)

                    # Add to the subset_dict
                    key = self.dc[i].label + self.dc[i].components[
                        j].label + "All data-" + self.dc[i].label
                    self.subset_dict[key] = child.index()

                    parent.appendRow(child)

                parent_data.appendRow(parent)

                #Add the parents with their children to the QStandardItemModel
            self.model_subsets.appendRow(parent_data)

            parent_subset = QStandardItem('{}'.format('Subsets'))
            parent_subset.setEditable(False)
            parent_subset.setSelectable(False)

            # Set up the subsets as Subsets > choose subset > choose data set > choose component

            for j in range(0, len(self.dc.subset_groups)):
                grandparent = QStandardItem('{}'.format(
                    self.dc.subset_groups[j].label))
                grandparent.setIcon(
                    helpers.layer_icon(self.dc.subset_groups[j]))

                grandparent.setEditable(False)
                grandparent.setSelectable(False)

                for i in range(0, len(self.dc)):
                    parent = QStandardItem(
                        '{}'.format(self.dc.subset_groups[j].label) + ' (' +
                        '{}'.format(self.dc[i].label) + ')')

                    # Set up the circles
                    parent.setIcon(helpers.layer_icon(
                        self.dc.subset_groups[j]))
                    parent.setEditable(False)
                    parent.setSelectable(False)

                    try:
                        self.dc[i].compute_statistic(
                            'mean',
                            self.dc[i].subsets[j].components[0],
                            subset_state=self.dc[i].subsets[j].subset_state)

                    except:
                        parent.setForeground(QtGui.QBrush(Qt.gray))

                    for k in range(0, len(self.dc[i].components)):

                        child = QStandardItem('{}'.format(
                            str(self.dc[i].components[k])))
                        child.setEditable(False)

                        # Update the dict to keep track of row indices
                        key = self.dc[i].label + self.dc[i].components[
                            k].label + self.dc[i].subsets[j].label
                        self.subset_dict[key] = child.index()

                        parent.appendRow(child)

                        # Make gray and unselectable components that aren't defined for a subset
                        try:
                            self.dc[i].compute_statistic(
                                'mean',
                                self.dc[i].subsets[j].components[k],
                                subset_state=self.dc[i].subsets[j].subset_state
                            )

                        except:
                            #                             print("Glue has raised an Incompatible Attribute error on this component. Let's do this instead.")
                            child.setEditable(False)
                            child.setSelectable(False)
                            child.setForeground(QtGui.QBrush(Qt.gray))

                    grandparent.appendRow(parent)
                parent_subset.appendRow(grandparent)
            self.model_subsets.appendRow(parent_subset)

            # Fill out the dict now that the indices are connected to the QStandardItemModel

            # Full datasets
            for i in range(0, parent_data.rowCount()):
                for j in range(0, parent_data.child(i).rowCount()):
                    key = "All data (" + parent_data.child(
                        i).text() + ")" + parent_data.child(i).child(j).text()
                    self.subset_dict[key] = parent_data.child(i).child(
                        j).index()

            # Subsets
            for i in range(0, parent_subset.rowCount()):
                for j in range(0, parent_subset.child(i).rowCount()):
                    for k in range(0,
                                   parent_subset.child(i).child(j).rowCount()):
                        key = parent_subset.child(i).child(j).text(
                        ) + parent_subset.child(i).child(j).child(k).text()
                        self.subset_dict[key] = parent_subset.child(i).child(
                            j).child(k).index()

        self.treeview.setUniformRowHeights(True)

        selection_model = QItemSelectionModel(self.model_subsets)
        self.treeview.setSelectionModel(selection_model)
        selection_model.selectionChanged.connect(self.myPressedEvent)

        # Select rows that should be selected

        sel_mod = self.treeview.selectionModel()

        for i in range(0, len(selected)):
            #             key = list(self.selected_dict.keys())[list(self.selected_dict.values()).index(self.selected_dict[i])]
            key = list(selected.keys())[i]
            index = self.subset_dict[key]
            print(index.parent().row(), index.row())
            #             print(index, type(index))
            #             print(type(self.treeview.selectionModel().select(index, QItemSelectionModel.Select)))
            #             sel_mod.select(index, QItemSelectionModel.Select|QItemSelectionModel.Rows)
            self.treeview.setCurrentIndex(index)

        self.treeview.setSelectionModel(sel_mod)

    def sortByComponents(self):
        '''
        Sorts the treeview by components- Dataset then component then subsets
        '''
        # Save the selected rows from the subset view if applicable

        try:
            selected = dict()
            for i in range(0, len(self.selected_indices)):
                item = self.model_subsets.itemFromIndex(
                    self.selected_indices[i])
                if item.parent().parent().text() == "Data":
                    key = "All data (" + item.parent().text(
                    ) + ")" + item.text()
                    selected[key] = item.index()
                else:
                    key = item.parent().text() + item.text()
                    selected[key] = item.index()
        except:
            pass

        # Set Expand/collapse button to "expand all"
        self.expand_data.setText("Expand all data and subsets")

        self.selection_model = QAbstractItemView.MultiSelection
        self.treeview.setSelectionMode(self.selection_model)

        # See if the model already exists
        try:
            self.treeview.setModel(self.model_components)

        except:

            self.model_components = QStandardItemModel()
            self.model_components.setHorizontalHeaderLabels([''])

            self.treeview.setModel(self.model_components)
            self.treeview.setUniformRowHeights(True)

            # populate the tree
            # Make all the datasets be parents, and make it so they are not selectable

            for i in range(0, len(dc)):
                grandparent = QStandardItem('{}'.format(self.dc.labels[i]))
                grandparent.setIcon(helpers.layer_icon(self.dc[i]))
                grandparent.setEditable(False)
                grandparent.setSelectable(False)

                # Make all the data components be children, nested under their parent
                for k in range(0, len(self.dc[i].components)):
                    parent = QStandardItem('{}'.format(
                        str(self.dc[i].components[k])))
                    parent.setEditable(False)
                    parent.setSelectable(False)

                    child = QStandardItem('{}'.format('All data (' +
                                                      self.dc.labels[i] + ')'))
                    child.setIcon(helpers.layer_icon(self.dc[i]))
                    child.setEditable(False)

                    parent.appendRow(child)

                    for j in range(0, len(self.dc.subset_groups)):
                        child = QStandardItem('{}'.format(
                            self.dc.subset_groups[j].label))
                        child.setEditable(False)
                        child.setIcon(
                            helpers.layer_icon(self.dc.subset_groups[j]))

                        try:
                            self.dc[i].compute_statistic(
                                'mean',
                                self.dc[i].subsets[j].components[k],
                                subset_state=self.dc[i].subsets[j].subset_state
                            )

                        except:
                            #                             print("Glue has raised an Incompatible Attribute error on this component. Let's do this instead.")
                            child.setEditable(False)
                            child.setSelectable(False)
                            child.setForeground(QtGui.QBrush(Qt.gray))

                        parent.appendRow(child)
                    grandparent.appendRow(parent)
                self.model_components.appendRow(grandparent)

                # Fill out the dict now that the indices are connected to the QStandardItemModel
                for i in range(0, grandparent.rowCount()):
                    for j in range(0, grandparent.child(i).rowCount()):
                        if grandparent.child(i).child(j).row() == 0:
                            key = grandparent.child(i).child(
                                j).text() + grandparent.child(i).text()
                            self.component_dict[key] = grandparent.child(
                                i).child(j).index()
                        else:
                            key = grandparent.child(i).child(
                                j).text() + " (" + grandparent.text(
                                ) + ")" + grandparent.child(i).text()
                            self.component_dict[key] = grandparent.child(
                                i).child(j).index()

        self.treeview.setUniformRowHeights(True)

        selection_model = QItemSelectionModel(self.model_components)
        self.treeview.setSelectionModel(selection_model)
        selection_model.selectionChanged.connect(self.myPressedEvent)

        # Select the rows that should be selected

        sel_mod = self.treeview.selectionModel()

        for i in range(0, len(selected)):
            key = list(selected.keys())[i]
            index = self.component_dict[key]
            #             self.treeview.selectionModel().select(index, QItemSelectionModel.Select)
            print(index.parent().row(), index.row())
            # This causes an error when it runs
            #             sel_mod.select(index, QItemSelectionModel.Select|QItemSelectionModel.Rows)
            self.treeview.setCurrentIndex(index)

        self.treeview.setSelectionModel(sel_mod)
class AttributeController(QMainWindow):
    _visibility_dict = {
        'Beginner': EVisibility.Beginner,
        'Expert': EVisibility.Expert,
        'Guru': EVisibility.Guru,
        'All': EVisibility.Invisible,
    }

    def __init__(self, node_map, parent=None):
        #
        super().__init__(parent=parent)

        #
        self.setWindowTitle('Attribute Controller')

        #
        self._view = QTreeView()
        self._view.setFont(get_system_font())

        #
        self._node_map = node_map
        self._model = FeatureTreeModel(node_map=self._node_map, )

        #
        self._proxy = FilterProxyModel()
        self._proxy.setSourceModel(self._model)
        self._proxy.setDynamicSortFilter(False)

        #
        self._delegate = FeatureEditDelegate(proxy=self._proxy)
        self._view.setModel(self._proxy)
        self._view.setItemDelegate(self._delegate)
        self._view.setUniformRowHeights(True)

        #
        unit = 260
        for i in range(2):
            self._view.setColumnWidth(i, unit)

        w, h = 700, 600
        self._view.setGeometry(100, 100, w, h)

        self.setCentralWidget(self._view)
        self.setGeometry(100, 100, unit * 2, 640)

        self._combo_box_visibility = None
        self._line_edit_search_box = None

        #
        self._setup_toolbars()

    def _setup_toolbars(self):
        #
        group_filter = self.addToolBar('Node Visibility')
        group_manipulation = self.addToolBar('Node Tree Manipulation')

        #
        label_visibility = QLabel()
        label_visibility.setText('Visibility')
        label_visibility.setFont(get_system_font())

        #
        self._combo_box_visibility = QComboBox()
        self._combo_box_visibility.setSizeAdjustPolicy(
            QComboBox.AdjustToContents)

        #
        items = ('Beginner', 'Expert', 'Guru', 'All')
        for item in items:
            self._combo_box_visibility.addItem(item)

        shortcut_key = 'Ctrl+v'
        shortcut = QShortcut(QKeySequence(shortcut_key), self)

        def show_popup():
            self._combo_box_visibility.showPopup()

        shortcut.activated.connect(show_popup)

        self._combo_box_visibility.setToolTip(
            compose_tooltip('Filter the nodes to show', shortcut_key))
        self._combo_box_visibility.setFont(get_system_font())
        self._combo_box_visibility.currentIndexChanged.connect(
            self._invalidate_feature_tree_by_visibility)

        #
        button_expand_all = ActionExpandAll(icon='expand.png',
                                            title='Expand All',
                                            parent=self,
                                            action=self.action_on_expand_all)
        shortcut_key = 'Ctrl+e'
        button_expand_all.setToolTip(
            compose_tooltip('Expand the node tree', shortcut_key))
        button_expand_all.setShortcut(shortcut_key)
        button_expand_all.toggle()

        #
        button_collapse_all = ActionCollapseAll(
            icon='collapse.png',
            title='Collapse All',
            parent=self,
            action=self.action_on_collapse_all)
        shortcut_key = 'Ctrl+c'
        button_collapse_all.setToolTip(
            compose_tooltip('Collapse the node tree', shortcut_key))
        button_collapse_all.setShortcut(shortcut_key)
        button_collapse_all.toggle()

        #
        label_search = QLabel()
        label_search.setText('RegEx Search')
        label_search.setFont(get_system_font())

        #
        self._line_edit_search_box = QLineEdit()
        self._line_edit_search_box.setFont(get_system_font())
        self._line_edit_search_box.textEdited.connect(
            self._invalidate_feature_tree_by_keyword)

        #
        group_filter.addWidget(label_visibility)
        group_filter.addWidget(self._combo_box_visibility)
        group_filter.addWidget(label_search)
        group_filter.addWidget(self._line_edit_search_box)
        group_filter.setStyleSheet('QToolBar{spacing:6px;}')

        #
        group_manipulation.addAction(button_expand_all)
        group_manipulation.addAction(button_collapse_all)

        #
        group_manipulation.actionTriggered[QAction].connect(
            self.on_button_clicked_action)

        #
        self._combo_box_visibility.setCurrentIndex(
            self._visibility_dict['Expert'])

    def _invalidate_feature_tree_by_visibility(self):
        visibility = self._visibility_dict[
            self._combo_box_visibility.currentText()]
        self._proxy.setVisibility(visibility)
        self._view.expandAll()

    @pyqtSlot('QString')
    def _invalidate_feature_tree_by_keyword(self, keyword):
        self._proxy.setKeyword(keyword)
        self._view.expandAll()

    @staticmethod
    def on_button_clicked_action(action):
        action.execute()

    def expand_all(self):
        self._view.expandAll()

    def collapse_all(self):
        self._view.collapseAll()

    def resize_column_width(self):
        for i in range(self._model.columnCount()):
            self._view.resizeColumnToContents(i)

    def action_on_expand_all(self):
        self.expand_all()

    def action_on_collapse_all(self):
        self.collapse_all()
Exemplo n.º 4
0
class DanaBrowseWindow(QMainWindow):
    def __init__(self, args):
        super(DanaBrowseWindow, self).__init__()
        #Leeo la configuracion
        self.configFile = args.configFile
        self.secure = args.secure
        self.cubeFile = args.cubeFile
        self.sysExclude = args.sysExclude

        self.maxLevel = 1  #para poder modificarlo luego
        self.dictionary = DataDict(defFile=args.configFile,
                                   secure=args.secure,
                                   sysExclude=args.sysExclude)
        #TODO variables asociadas del diccionario. Reevaluar al limpiar

        self.baseModel = self.dictionary.baseModel
        self.configData = self.dictionary.configData
        self.conn = self.dictionary.conn
        if self.dictionary.isEmpty:
            self.newConfigData()
            #self.dictionary._cargaModelo(self.dictionary.baseModel)
        self.setupView()
        self.cubeMgr = None  # necesito mas adelante que este definida
        if config.DEBUG:
            print('inicializacion completa')
        #CHANGE here

        self.queryView = TableBrowse(None)

        self.dictMenu = self.menuBar().addMenu("&Conexiones")
        self.dictMenu.addAction("&New ...", self.newConnection, "Ctrl+N")
        self.dictMenu.addAction("&Modify ...", self.modConnection, "Ctrl+M")
        self.dictMenu.addAction("&Delete ...", self.delConnection, "Ctrl+D")
        self.dictMenu.addAction("&Save Config File", self.saveConfigFile,
                                "Ctrl+S")
        self.dictMenu.addAction("E&xit", self.close, "Ctrl+Q")

        self.queryMenu = self.menuBar().addMenu('Consulta de &datos')
        self.queryMenu.addAction("Cerrar", self.hideDatabrowse)
        self.queryMenu.setEnabled(False)

        self.cubeMenu = self.menuBar().addMenu("C&ubo")
        self.cubeMenu.addAction("&Salvar", self.saveCubeFile, "Ctrl+S")
        #self.cubeMenu.addAction("&Restaurar", self.restoreCubeFile, "Ctrl+M")
        self.cubeMenu.addAction("S&alir", self.hideCube, "Ctrl+C")
        self.cubeMenu.addSeparator()
        self.cubeMenu.addAction("Ver &ejemplo de datos del cubo",
                                self.previewCube, "Ctrl+E")
        self.cubeMenu.setEnabled(False)

        #self.queryModel = self.queryView.baseModel

        self.querySplitter = QSplitter(Qt.Vertical)
        self.querySplitter.addWidget(self.view)
        #self.querySplitter.addWidget(self.queryView)

        self.configSplitter = QSplitter(Qt.Horizontal)
        self.configSplitter.addWidget(self.querySplitter)

        self.setCentralWidget(self.configSplitter)

        self.setWindowTitle("Visualizador de base de datos")
        """
            estas funciones son para soportar para los decoradores keep position y tal
        """

    def model(self):
        return self.baseModel

    def isExpanded(self, idx):
        return self.view.isExpanded(idx)

    def setExpanded(self, idx, state):
        return self.view.setExpanded(idx, state)

    def setupView(self):
        self.view = QTreeView(self)
        self.view.setContextMenuPolicy(Qt.CustomContextMenu)
        self.view.customContextMenuRequested.connect(self.openContextMenu)
        self.view.doubleClicked.connect(self.test)
        self.view.setModel(self.baseModel)
        #self.view.resizeColumnToContents(0)
        self.view.setEditTriggers(QAbstractItemView.NoEditTriggers)

        self.view.expandAll()
        for m in range(self.baseModel.columnCount()):
            self.view.resizeColumnToContents(m)
        self.view.collapseAll()
        self.view.expandToDepth(0)
        #self.view.setHeaderHidden(True)
        #self.view.setSortingEnabled(True)
        #self.view.setRootIsDecorated(False)
        self.view.setAlternatingRowColors(True)
        #self.view.sortByColumn(0, Qt.AscendingOrder)

    def newConfigData(self):
        self.configData = dict()
        self.configData['Conexiones'] = dict()
        self.editConnection(None)
        if self.configData['Conexiones']:
            self.saveConfigFile()
            print(self.configData)
            self.dictionary._cargaModelo(confData=self.configData['Conexiones']
                                         )  #self.dictionary.baseModel)
        else:
            QMessageBox.critical(
                self, "Error Fatal",
                "No se ha encontrado una conexión valida.\nFin de proceso")
            self.close()

    def saveConfigFile(self):
        dump_config(self.configData,
                    getConfigFileName(self.configFile),
                    secure=self.secure)  #TODO de momento

    def closeEvent(self, event):
        self.close()

    def close(self):

        if self.cubeMgr:
            self.saveConfigFile()

        for conid in self.conn:
            if self.conn[conid] is None:
                continue
            if self.conn[conid].closed:
                self.conn[conid].close()
        self.saveConfigFile()

        sys.exit()

    def newConnection(self):
        confName = self.editConnection(None)
        # esta claro que sobran parametros
        self.dictionary.appendConnection(confName)

    def modConnection(self, nombre=None):
        if nombre is None:
            selDialog = SelectConnectionDlg(self.configData['Conexiones'])
            if selDialog.exec_():
                confName = selDialog.conexion
            else:
                return
        else:
            confName = nombre
        self.editConnection(confName)
        self.updateModel(confName)

    @waiting_effects
    def updateModel(self, nombre=None):
        self.dictionary.updateModel(nombre)

    def delConnection(self, nombre=None):
        if nombre is None:
            selDialog = SelectConnectionDlg(self.configData['Conexiones'])
            if selDialog.exec_():
                confName = selDialog.conexion
            else:
                return
        else:
            confName = nombre
        self.dictionary.dropConnection(confName)

    def editConnection(self, nombre=None):
        attr_list = ('driver', 'dbname', 'dbhost', 'dbuser', 'dbpass',
                     'dbport', 'debug')
        if nombre is None:
            datos = [None for k in range(len(attr_list) + 1)]
        else:
            datos = [
                nombre,
            ] + dict2row(self.configData['Conexiones'][nombre], attr_list)
            datos[1] = DRIVERS.index(datos[1])
        #contexto
        context = (
            (
                'Nombre',
                QLineEdit,
                {
                    'setReadOnly': True
                } if nombre is not None else None,
                None,
            ),
            # driver
            (
                "Driver ",
                QComboBox,
                None,
                DRIVERS,
            ),
            (
                "DataBase Name",
                QLineEdit,
                None,
                None,
            ),
            (
                "Host",
                QLineEdit,
                None,
                None,
            ),
            (
                "User",
                QLineEdit,
                None,
                None,
            ),
            (
                "Password",
                QLineEdit,
                {
                    'setEchoMode': QLineEdit.Password
                },
                None,
            ),
            (
                "Port",
                QLineEdit,
                None,
                None,
            ),
            (
                "Debug",
                QCheckBox,
                None,
                None,
            ))
        parmDialog = ConnectionSheetDlg('Edite la conexion', context, datos,
                                        self)
        if parmDialog.exec_():
            #TODO deberia verificar que se han cambiado los datos
            #datos[1]=DRIVERS[datos[1]]
            self.configData['Conexiones'][datos[0]] = row2dict(
                datos[1:], attr_list)
            return datos[0]

    @keep_tree_layout()
    def openContextMenu(self, position):
        """
        """
        item = None
        indexes = self.view.selectedIndexes()
        if len(indexes) > 0:
            index = indexes[0]
            item = self.baseModel.itemFromIndex(index)
        menu = QMenu()
        if item:
            item.setMenuActions(menu, self)
            action = menu.exec_(self.view.viewport().mapToGlobal(position))
        #getContextMenu(item,action,self)

    @waiting_effects
    def databrowse(self, confName, schema, table, iters=0):
        #print(confName,schema,table,self.dictionary.conn[confName])
        self.queryView.reconnect(
            self.queryView.getConnection(self.dictionary, confName, schema,
                                         table, iters))
        self.queryView.executeNewScript(
            self.queryView.generateSQL(confName,
                                       schema,
                                       table,
                                       iters,
                                       pFilter=None))
        if self.queryView.isHidden():
            self.queryView.show()
        self.queryMenu.setEnabled(True)
        if self.querySplitter.count(
        ) == 1:  #de momento parece un modo sencillo de no multiplicar en exceso
            self.querySplitter.addWidget(self.queryView)

    def hideDatabrowse(self):
        self.queryView.hide()
        self.queryMenu.setEnabled(False)

    def prepareNewCube(self, confName, schema, table):
        # aqui tiene que venir un dialogo para seleccionar nombre del cubo
        maxLevel = self.maxLevel
        parmDlg = GenerationSheetDlg('Parámetros de generación', table,
                                     maxLevel)
        if parmDlg.exec_():
            kname = parmDlg.data[0]
            maxLevel = parmDlg.data[1]
        infox = info2cube(self.dictionary, confName, schema, table, maxLevel)
        if kname != table:
            infox[kname] = infox.pop(table)
        return infox

    def cubebrowse(self, confName, schema, table):

        infox = self.prepareNewCube(confName, schema, table)
        if self.cubeMgr and not self.cubeMgr.isHidden():
            self.hideCube()
        self.cubeMgr = CubeMgr(self,
                               confName,
                               schema,
                               table,
                               self.dictionary,
                               rawCube=infox,
                               cubeFile=self.cubeFile)
        self.cubeMgr.expandToDepth(1)
        #if self.configSplitter.count() == 1:  #de momento parece un modo sencillo de no multiplicar en exceso
        self.configSplitter.addWidget(self.cubeMgr)

        self.cubeMgr.show()
        self.cubeMenu.setEnabled(True)

    def saveCubeFile(self):
        self.cubeMgr.saveCubeFile()

    def restoreCubeFile(self):
        self.cubeMgr.restoreConfigFile()

    def hideCube(self):
        self.cubeMgr.saveCubeFile()
        self.cubeMgr.hide()
        self.cubeMenu.setEnabled(False)

    def test(self, index):
        return
        print(index.row(), index.column())
        item = self.baseModel.itemFromIndex(index)
        print(item.text(), item.model())

    def refreshTable(self):
        self.baseModel.emitModelReset()

    def previewCube(self):
        startItem = self.cubeMgr.model().item(0, 0)
        conName = self.cubeMgr.defaultConnection
        self.queryView.reconnect(
            self.queryView.getConnection(self.dictionary, confName=conName))
        query = self.cubeMgr.getPreviewQuery(startItem)
        self.queryView.executeNewScript(query)
        if self.queryView.isHidden():
            self.queryView.show()
        self.queryMenu.setEnabled(True)
        if self.querySplitter.count(
        ) == 1:  #de momento parece un modo sencillo de no multiplicar en exceso
            self.querySplitter.addWidget(self.queryView)