Python QtGui.QPushButton类代码示例

class ExampleWidget(QWidget):
    """
    Example widget.

    Methods defined here should not be aware of spyder, but of the function
    required by the widget only.
    """

    def __init__(self, parent):
        QWidget.__init__(self, parent=parent)

        self.setWindowTitle("Example")

        # Widgets
        self.button = QPushButton('Current editor')
        self.table = QTableWidget(self)

        # Widget setup
        self.button.setIcon(ima.icon('spyder'))

        # Layouts
        layout = QVBoxLayout()
        layout.addWidget(self.button)
        layout.addWidget(self.table)
        self.setLayout(layout)

    def msgbox(self, msg=None):
        """Message box."""
        QMessageBox.information(self, 'Title', msg)

    def __init__(self, parent=None):
        QWidget.__init__(self, parent)
        self.runconf = RunConfiguration()

        common_group = QGroupBox(_("General settings"))
        common_layout = QGridLayout()
        common_group.setLayout(common_layout)
        self.clo_cb = QCheckBox(_("Command line options:"))
        common_layout.addWidget(self.clo_cb, 0, 0)
        self.clo_edit = QLineEdit()
        self.connect(self.clo_cb, SIGNAL("toggled(bool)"), self.clo_edit.setEnabled)
        self.clo_edit.setEnabled(False)
        common_layout.addWidget(self.clo_edit, 0, 1)
        self.wd_cb = QCheckBox(_("Working directory:"))
        common_layout.addWidget(self.wd_cb, 1, 0)
        wd_layout = QHBoxLayout()
        self.wd_edit = QLineEdit()
        self.connect(self.wd_cb, SIGNAL("toggled(bool)"), self.wd_edit.setEnabled)
        self.wd_edit.setEnabled(False)
        wd_layout.addWidget(self.wd_edit)
        browse_btn = QPushButton(get_std_icon("DirOpenIcon"), "", self)
        browse_btn.setToolTip(_("Select directory"))
        self.connect(browse_btn, SIGNAL("clicked()"), self.select_directory)
        wd_layout.addWidget(browse_btn)
        common_layout.addLayout(wd_layout, 1, 1)

        radio_group = QGroupBox(_("Interpreter"))
        radio_layout = QVBoxLayout()
        radio_group.setLayout(radio_layout)
        self.current_radio = QRadioButton(_("Execute in current Python " "or IPython interpreter"))
        radio_layout.addWidget(self.current_radio)
        self.new_radio = QRadioButton(_("Execute in a new dedicated " "Python interpreter"))
        radio_layout.addWidget(self.new_radio)
        self.systerm_radio = QRadioButton(_("Execute in an external " "system terminal"))
        radio_layout.addWidget(self.systerm_radio)

        new_group = QGroupBox(_("Dedicated Python interpreter"))
        self.connect(self.current_radio, SIGNAL("toggled(bool)"), new_group.setDisabled)
        new_layout = QGridLayout()
        new_group.setLayout(new_layout)
        self.interact_cb = QCheckBox(_("Interact with the Python " "interpreter after execution"))
        new_layout.addWidget(self.interact_cb, 1, 0, 1, -1)
        self.pclo_cb = QCheckBox(_("Command line options:"))
        new_layout.addWidget(self.pclo_cb, 2, 0)
        self.pclo_edit = QLineEdit()
        self.connect(self.pclo_cb, SIGNAL("toggled(bool)"), self.pclo_edit.setEnabled)
        self.pclo_edit.setEnabled(False)
        new_layout.addWidget(self.pclo_edit, 2, 1)
        pclo_label = QLabel(_("The <b>-u</b> option is " "added to these commands"))
        pclo_label.setWordWrap(True)
        new_layout.addWidget(pclo_label, 3, 1)

        # TODO: Add option for "Post-mortem debugging"

        layout = QVBoxLayout()
        layout.addWidget(common_group)
        layout.addWidget(radio_group)
        layout.addWidget(new_group)
        self.setLayout(layout)

 def create_browsedir(self, text, option, default=NoDefault, tip=None):
     widget = self.create_lineedit(text, option, default,
                                   alignment=Qt.Horizontal)
     for edit in self.lineedits:
         if widget.isAncestorOf(edit):
             break
     msg = _("Invalid directory path")
     self.validate_data[edit] = (osp.isdir, msg)
     browse_btn = QPushButton(ima.icon('DirOpenIcon'), '', self)
     browse_btn.setToolTip(_("Select directory"))
     browse_btn.clicked.connect(lambda: self.select_directory(edit))
     layout = QHBoxLayout()
     layout.addWidget(widget)
     layout.addWidget(browse_btn)
     layout.setContentsMargins(0, 0, 0, 0)
     browsedir = QWidget(self)
     browsedir.setLayout(layout)
     return browsedir

 def create_browsefile(self, text, option, default=NoDefault, tip=None,
                       filters=None):
     widget = self.create_lineedit(text, option, default,
                                   alignment=Qt.Horizontal)
     for edit in self.lineedits:
         if widget.isAncestorOf(edit):
             break
     msg = _("Invalid file path")
     self.validate_data[edit] = (osp.isfile, msg)
     browse_btn = QPushButton(get_std_icon('FileIcon'), "", self)
     browse_btn.setToolTip(_("Select file"))
     browse_btn.clicked.connect(lambda: self.select_file(edit, filters))
     layout = QHBoxLayout()
     layout.addWidget(widget)
     layout.addWidget(browse_btn)
     layout.setContentsMargins(0, 0, 0, 0)
     browsedir = QWidget(self)
     browsedir.setLayout(layout)
     return browsedir

    def __init__(self, parent, data, readonly=False,
                 xlabels=None, ylabels=None):
        QWidget.__init__(self, parent)
        self.data = data
        self.old_data_shape = None
        if len(self.data.shape) == 1:
            self.old_data_shape = self.data.shape
            self.data.shape = (self.data.shape[0], 1)
        elif len(self.data.shape) == 0:
            self.old_data_shape = self.data.shape
            self.data.shape = (1, 1)

        format = SUPPORTED_FORMATS.get(data.dtype.name, '%s')
        self.model = ArrayModel(self.data, format=format, xlabels=xlabels,
                                ylabels=ylabels, readonly=readonly, parent=self)
        self.view = ArrayView(self, self.model, data.dtype, data.shape)
        
        btn_layout = QHBoxLayout()
        btn_layout.setAlignment(Qt.AlignLeft)
        btn = QPushButton(_( "Format"))
        # disable format button for int type
        btn.setEnabled(is_float(data.dtype))
        btn_layout.addWidget(btn)
        btn.clicked.connect(self.change_format)
        btn = QPushButton(_( "Resize"))
        btn_layout.addWidget(btn)
        btn.clicked.connect(self.view.resize_to_contents)
        bgcolor = QCheckBox(_( 'Background color'))
        bgcolor.setChecked(self.model.bgcolor_enabled)
        bgcolor.setEnabled(self.model.bgcolor_enabled)
        bgcolor.stateChanged.connect(self.model.bgcolor)
        btn_layout.addWidget(bgcolor)
        
        layout = QVBoxLayout()
        layout.addWidget(self.view)
        layout.addLayout(btn_layout)        
        self.setLayout(layout)

    def __init__(self, parent):
        QWidget.__init__(self, parent=parent)

        self.setWindowTitle("Example")

        # Widgets
        self.button = QPushButton('Current editor')
        self.table = QTableWidget(self)

        # Widget setup
        self.button.setIcon(ima.icon('spyder'))

        # Layouts
        layout = QVBoxLayout()
        layout.addWidget(self.button)
        layout.addWidget(self.table)
        self.setLayout(layout)

    def __init__(self):
        super(TestWindow, self).__init__()
        self.setGeometry(300, 100, 400, 600)
        self.setWindowTitle('Exploring QMainWindow')

        self.exit = QAction('Exit', self)
        self.exit.setStatusTip('Exit program')

        # create the menu bar
        menubar = self.menuBar()
        file_ = menubar.addMenu('&File')
        file_.addAction(self.exit)

        # create the status bar
        self.statusBar()

        # QWidget or its instance needed for box layout
        self.widget = QWidget(self)

        self.button = QPushButton('test')
        self.button1 = QPushButton('1')
        self.button2 = QPushButton('2')

        effect = QGraphicsOpacityEffect(self.button2)
        self.button2.setGraphicsEffect(effect)
        self.anim = QPropertyAnimation(effect, "opacity")
        self.anim.setStartValue(0.01)
        self.anim.setEndValue(1.0)
        self.anim.setDuration(500)

        lay = QVBoxLayout()
        lay.addWidget(self.button)
        lay.addStretch()
        lay.addWidget(self.button1)
        lay.addWidget(self.button2)

        self.widget.setLayout(lay)

        self.setCentralWidget(self.widget)
        self.button.clicked.connect(self.action1)
        self.button1.clicked.connect(self.action2)

        self.tour = AnimatedTour(self)

class LayoutSettingsDialog(QDialog):
    """Layout settings dialog"""
    def __init__(self, parent, names, order, active):
        super(LayoutSettingsDialog, self).__init__(parent)

        # variables
        self._parent = parent
        self._selection_model = None
        self.names = names
        self.order = order
        self.active = active

        # widgets
        self.button_move_up = QPushButton(_('Move Up'))
        self.button_move_down = QPushButton(_('Move Down'))
        self.button_delete = QPushButton(_('Delete Layout'))
        self.button_box = QDialogButtonBox(QDialogButtonBox.Ok |
                                           QDialogButtonBox.Cancel,
                                           Qt.Horizontal, self)
        self.group_box = QGroupBox(_("Layout Dispay and Order"))
        self.table = QTableView(self)
        self.ok_button = self.button_box.button(QDialogButtonBox.Ok)
        self.cancel_button = self.button_box.button(QDialogButtonBox.Cancel)
        self.cancel_button.setDefault(True)
        self.cancel_button.setAutoDefault(True)

        # widget setup
        self.dialog_size = QSize(300, 200)
        self.setMinimumSize(self.dialog_size)
        self.setFixedSize(self.dialog_size)
        self.setWindowTitle('Layout Settings')

        self.table.setModel(LayoutModel(self.table, order, active))
        self.table.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.table.setSelectionMode(QAbstractItemView.SingleSelection)
        self.table.verticalHeader().hide()
        self.table.horizontalHeader().hide()
        self.table.setAlternatingRowColors(True)
        self.table.setShowGrid(False)
        self.table.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.table.horizontalHeader().setStretchLastSection(True)
        self.table.setColumnHidden(1, True)
        
        # need to keep a reference for pyside not to segfault!
        self._selection_model = self.table.selectionModel()

        # layout
        buttons_layout = QVBoxLayout()
        buttons_layout.addWidget(self.button_move_up)
        buttons_layout.addWidget(self.button_move_down)
        buttons_layout.addStretch()
        buttons_layout.addWidget(self.button_delete)

        group_layout = QHBoxLayout()
        group_layout.addWidget(self.table)
        group_layout.addLayout(buttons_layout)
        self.group_box.setLayout(group_layout)

        layout = QVBoxLayout()
        layout.addWidget(self.group_box)
        layout.addWidget(self.button_box)

        self.setLayout(layout)

        # signals and slots
        self.button_box.accepted.connect(self.accept)
        self.button_box.rejected.connect(self.close)
        self.button_delete.clicked.connect(self.delete_layout)
        self.button_move_up.clicked.connect(lambda: self.move_layout(True))
        self.button_move_down.clicked.connect(lambda: self.move_layout(False))
        self.table.model().dataChanged.connect(
           lambda: self.selection_changed(None, None))
        self._selection_model.selectionChanged.connect(
           lambda: self.selection_changed(None, None))

        # focus table
        index = self.table.model().index(0, 0)
        self.table.setCurrentIndex(index)
        self.table.setFocus()

    def delete_layout(self):
        """ """
        names, order, active = self.names, self.order, self.order
        name = from_qvariant(self.table.selectionModel().currentIndex().data(),
                             to_text_string)

        if name in names:
            index = names.index(name)
            # In case nothing has focus in the table
        if index != -1:
            order.remove(name)
            names[index] = None
            if name in active:
                active.remove(name)
            self.names, self.order, self.active = names, order, active
            self.table.model().set_data(order, active)
            index = self.table.model().index(0, 0)
            self.table.setCurrentIndex(index)
            self.table.setFocus()
            self.selection_changed(None, None)
#.........这里部分代码省略.........

class FadingTipBox(FadingDialog):
    """ """
    def __init__(self, parent, opacity, duration, easing_curve):
        super(FadingTipBox, self).__init__(parent, opacity, duration,
                                           easing_curve)
        self.holder = self.anim  # needed for qt to work
        self.parent = parent

        self.frames = None
        self.color_top = QColor.fromRgb(230, 230, 230)
        self.color_back = QColor.fromRgb(255, 255, 255)
        self.offset_shadow = 0
        self.fixed_width = 300

        self.key_pressed = None

        self.setAttribute(Qt.WA_TranslucentBackground)
        self.setWindowFlags(Qt.Dialog | Qt.FramelessWindowHint |
                            Qt.WindowStaysOnTopHint)
        self.setModal(False)

        # Widgets
        self.button_home = QPushButton("<<")
        self.button_close = QPushButton("X")
        self.button_previous = QPushButton(" < ")
        self.button_end = QPushButton(">>")
        self.button_next = QPushButton(" > ")
        self.button_run = QPushButton(_('Run code'))
        self.button_disable = None
        self.button_current = QToolButton()
        self.label_image = QLabel()

        self.label_title = QLabel()
        self.combo_title = QComboBox()
        self.label_current = QLabel()
        self.label_content = QLabel()

        self.label_content.setMinimumWidth(self.fixed_width)
        self.label_content.setMaximumWidth(self.fixed_width)

        self.label_current.setAlignment(Qt.AlignCenter)

        self.label_content.setWordWrap(True)

        self.widgets = [self.label_content, self.label_title,
                        self.label_current, self.combo_title,
                        self.button_close, self.button_run, self.button_next,
                        self.button_previous, self.button_end,
                        self.button_home, self.button_current]

        arrow = get_image_path('hide.png')

        self.stylesheet = '''QPushButton {
                             background-color: rgbs(200,200,200,100%);
                             color: rgbs(0,0,0,100%);
                             border-style: outset;
                             border-width: 1px;
                             border-radius: 3px;
                             border-color: rgbs(100,100,100,100%);
                             padding: 2px;
                             }

                             QPushButton:hover {
                             background-color: rgbs(150, 150, 150, 100%);
                             }

                             QPushButton:disabled {
                             background-color: rgbs(230,230,230,100%);
                             color: rgbs(200,200,200,100%);
                             border-color: rgbs(200,200,200,100%);
                             }

                             QComboBox {
                             padding-left: 5px;
                             background-color: rgbs(230,230,230,100%);
                             border-width: 0px;
                             border-radius: 0px;
                             min-height:20px;
                             max-height:20px;
                             }

                             QComboBox::drop-down  {
                             subcontrol-origin: padding;
                             subcontrol-position: top left;
                             border-width: 0px;
                             }
                             
                             QComboBox::down-arrow {
                             image: url(''' + arrow + ''');
                             }
                             
                             '''
        # Windows fix, slashes should be always in unix-style
        self.stylesheet = self.stylesheet.replace('\\', '/')

        for widget in self.widgets:
            widget.setFocusPolicy(Qt.NoFocus)
            widget.setStyleSheet(self.stylesheet)

        layout_top = QHBoxLayout()
#.........这里部分代码省略.........

class TestWindow(QMainWindow):
    """ """
    sig_resized = Signal("QResizeEvent")
    sig_moved = Signal("QMoveEvent")

    def __init__(self):
        super(TestWindow, self).__init__()
        self.setGeometry(300, 100, 400, 600)
        self.setWindowTitle('Exploring QMainWindow')

        self.exit = QAction('Exit', self)
        self.exit.setStatusTip('Exit program')

        # create the menu bar
        menubar = self.menuBar()
        file_ = menubar.addMenu('&File')
        file_.addAction(self.exit)

        # create the status bar
        self.statusBar()

        # QWidget or its instance needed for box layout
        self.widget = QWidget(self)

        self.button = QPushButton('test')
        self.button1 = QPushButton('1')
        self.button2 = QPushButton('2')

        effect = QGraphicsOpacityEffect(self.button2)
        self.button2.setGraphicsEffect(effect)
        self.anim = QPropertyAnimation(effect, "opacity")
        self.anim.setStartValue(0.01)
        self.anim.setEndValue(1.0)
        self.anim.setDuration(500)

        lay = QVBoxLayout()
        lay.addWidget(self.button)
        lay.addStretch()
        lay.addWidget(self.button1)
        lay.addWidget(self.button2)

        self.widget.setLayout(lay)

        self.setCentralWidget(self.widget)
        self.button.clicked.connect(self.action1)
        self.button1.clicked.connect(self.action2)

        self.tour = AnimatedTour(self)

    def action1(self):
        """ """
        frames = get_tour('test')
        index = 0
        dic = {'last': 0, 'tour': frames}
        self.tour.set_tour(index, dic, self)
        self.tour.start_tour()

    def action2(self):
        """ """
        self.anim.start()

    def resizeEvent(self, event):
        """Reimplement Qt method"""
        QMainWindow.resizeEvent(self, event)
        self.sig_resized.emit(event)

    def moveEvent(self, event):
        """Reimplement Qt method"""
        QMainWindow.moveEvent(self, event)
        self.sig_moved.emit(event)

    def __init__(self, parent=None):
        QWidget.__init__(self, parent)

        self.current_radio = None
        self.dedicated_radio = None
        self.systerm_radio = None

        self.runconf = RunConfiguration()
        
        firstrun_o = CONF.get('run', ALWAYS_OPEN_FIRST_RUN_OPTION, False)

        # --- General settings ----
        common_group = QGroupBox(_("General settings"))
        common_layout = QGridLayout()
        common_group.setLayout(common_layout)
        self.clo_cb = QCheckBox(_("Command line options:"))
        common_layout.addWidget(self.clo_cb, 0, 0)
        self.clo_edit = QLineEdit()
        self.connect(self.clo_cb, SIGNAL("toggled(bool)"),
                     self.clo_edit.setEnabled)
        self.clo_edit.setEnabled(False)
        common_layout.addWidget(self.clo_edit, 0, 1)
        self.wd_cb = QCheckBox(_("Working directory:"))
        common_layout.addWidget(self.wd_cb, 1, 0)
        wd_layout = QHBoxLayout()
        self.wd_edit = QLineEdit()
        self.connect(self.wd_cb, SIGNAL("toggled(bool)"),
                     self.wd_edit.setEnabled)
        self.wd_edit.setEnabled(False)
        wd_layout.addWidget(self.wd_edit)
        browse_btn = QPushButton(get_std_icon('DirOpenIcon'), "", self)
        browse_btn.setToolTip(_("Select directory"))
        self.connect(browse_btn, SIGNAL("clicked()"), self.select_directory)
        wd_layout.addWidget(browse_btn)
        common_layout.addLayout(wd_layout, 1, 1)
        
        # --- Interpreter ---
        interpreter_group = QGroupBox(_("Console"))
        interpreter_layout = QVBoxLayout()
        interpreter_group.setLayout(interpreter_layout)
        self.current_radio = QRadioButton(CURRENT_INTERPRETER)
        interpreter_layout.addWidget(self.current_radio)
        self.dedicated_radio = QRadioButton(DEDICATED_INTERPRETER)
        interpreter_layout.addWidget(self.dedicated_radio)
        self.systerm_radio = QRadioButton(SYSTERM_INTERPRETER)
        interpreter_layout.addWidget(self.systerm_radio)
        
        # --- Dedicated interpreter ---
        new_group = QGroupBox(_("Dedicated Python console"))
        self.connect(self.current_radio, SIGNAL("toggled(bool)"),
                     new_group.setDisabled)
        new_layout = QGridLayout()
        new_group.setLayout(new_layout)
        self.interact_cb = QCheckBox(_("Interact with the Python "
                                       "console after execution"))
        new_layout.addWidget(self.interact_cb, 1, 0, 1, -1)
        
        self.show_kill_warning_cb = QCheckBox(_("Show warning when killing"
                                                " running process"))
        new_layout.addWidget(self.show_kill_warning_cb, 2, 0, 1, -1)
        self.pclo_cb = QCheckBox(_("Command line options:"))
        new_layout.addWidget(self.pclo_cb, 3, 0)
        self.pclo_edit = QLineEdit()
        self.connect(self.pclo_cb, SIGNAL("toggled(bool)"),
                     self.pclo_edit.setEnabled)
        self.pclo_edit.setEnabled(False)
        self.pclo_edit.setToolTip(_("<b>-u</b> is added to the "
                                    "other options you set here"))
        new_layout.addWidget(self.pclo_edit, 3, 1)
        
        #TODO: Add option for "Post-mortem debugging"

        # Checkbox to preserve the old behavior, i.e. always open the dialog
        # on first run
        hline = QFrame()
        hline.setFrameShape(QFrame.HLine)
        hline.setFrameShadow(QFrame.Sunken)
        self.firstrun_cb = QCheckBox(ALWAYS_OPEN_FIRST_RUN % _("this dialog"))
        self.connect(self.firstrun_cb, SIGNAL("clicked(bool)"),
                     self.set_firstrun_o)
        self.firstrun_cb.setChecked(firstrun_o)
        
        layout = QVBoxLayout()
        layout.addWidget(interpreter_group)
        layout.addWidget(common_group)
        layout.addWidget(new_group)
        layout.addWidget(hline)
        layout.addWidget(self.firstrun_cb)
        self.setLayout(layout)

class ImportWizard(QDialog):
    """Text data import wizard"""
    def __init__(self, parent, text,
                 title=None, icon=None, contents_title=None, varname=None):
        QDialog.__init__(self, parent)
        
        # Destroying the C++ object right after closing the dialog box,
        # otherwise it may be garbage-collected in another QThread
        # (e.g. the editor's analysis thread in Spyder), thus leading to
        # a segmentation fault on UNIX or an application crash on Windows
        self.setAttribute(Qt.WA_DeleteOnClose)
        
        if title is None:
            title = _("Import wizard")
        self.setWindowTitle(title)
        if icon is None:
            self.setWindowIcon(get_icon("fileimport.png"))
        if contents_title is None:
            contents_title = _("Raw text")
        
        if varname is None:
            varname = _("variable_name")
        
        self.var_name, self.clip_data = None, None
        
        # Setting GUI
        self.tab_widget = QTabWidget(self)
        self.text_widget = ContentsWidget(self, text)
        self.table_widget = PreviewWidget(self)
        
        self.tab_widget.addTab(self.text_widget, _("text"))
        self.tab_widget.setTabText(0, contents_title)
        self.tab_widget.addTab(self.table_widget, _("table"))
        self.tab_widget.setTabText(1, _("Preview"))
        self.tab_widget.setTabEnabled(1, False)
        
        name_layout = QHBoxLayout()
        name_h_spacer = QSpacerItem(40, 20, 
                                    QSizePolicy.Expanding, QSizePolicy.Minimum)
        name_layout.addItem(name_h_spacer)
        
        name_label = QLabel(_("Name"))
        name_layout.addWidget(name_label)
        self.name_edt = QLineEdit()
        self.name_edt.setMaximumWidth(100)
        self.name_edt.setText(varname)
        name_layout.addWidget(self.name_edt)
        
        btns_layout = QHBoxLayout()
        cancel_btn = QPushButton(_("Cancel"))
        btns_layout.addWidget(cancel_btn)
        self.connect(cancel_btn, SIGNAL("clicked()"), self, SLOT("reject()"))
        h_spacer = QSpacerItem(40, 20,
                               QSizePolicy.Expanding, QSizePolicy.Minimum)
        btns_layout.addItem(h_spacer)
        self.back_btn = QPushButton(_("Previous"))
        self.back_btn.setEnabled(False)
        btns_layout.addWidget(self.back_btn)
        self.connect(self.back_btn, SIGNAL("clicked()"),
                     ft_partial(self._set_step, step=-1))
        self.fwd_btn = QPushButton(_("Next"))
        btns_layout.addWidget(self.fwd_btn)
        self.connect(self.fwd_btn, SIGNAL("clicked()"),
                     ft_partial(self._set_step, step=1))
        self.done_btn = QPushButton(_("Done"))
        self.done_btn.setEnabled(False)
        btns_layout.addWidget(self.done_btn)
        self.connect(self.done_btn, SIGNAL("clicked()"),
                     self, SLOT("process()"))
        
        self.connect(self.text_widget, SIGNAL("asDataChanged(bool)"),
                     self.fwd_btn, SLOT("setEnabled(bool)"))
        self.connect(self.text_widget, SIGNAL("asDataChanged(bool)"),
                     self.done_btn, SLOT("setDisabled(bool)"))
        layout = QVBoxLayout()
        layout.addLayout(name_layout)
        layout.addWidget(self.tab_widget)
        layout.addLayout(btns_layout)
        self.setLayout(layout)

    def _focus_tab(self, tab_idx):
        """Change tab focus"""
        for i in range(self.tab_widget.count()):
            self.tab_widget.setTabEnabled(i, False)
        self.tab_widget.setTabEnabled(tab_idx, True)
        self.tab_widget.setCurrentIndex(tab_idx)
        
    def _set_step(self,step):
        """Proceed to a given step"""
        new_tab = self.tab_widget.currentIndex() + step
        assert new_tab < self.tab_widget.count() and new_tab >= 0
        if new_tab == self.tab_widget.count()-1:
            try:
                self.table_widget.open_data(self._get_plain_text(),
                                        self.text_widget.get_col_sep(),
                                        self.text_widget.get_row_sep(),
                                        self.text_widget.trnsp_box.isChecked(),
                                        self.text_widget.get_skiprows(),
                                        self.text_widget.get_comments())
                self.done_btn.setEnabled(True)
#.........这里部分代码省略.........

    def __init__(self, parent, names, order, active):
        super(LayoutSettingsDialog, self).__init__(parent)

        # variables
        self._parent = parent
        self._selection_model = None
        self.names = names
        self.order = order
        self.active = active

        # widgets
        self.button_move_up = QPushButton(_('Move Up'))
        self.button_move_down = QPushButton(_('Move Down'))
        self.button_delete = QPushButton(_('Delete Layout'))
        self.button_box = QDialogButtonBox(QDialogButtonBox.Ok |
                                           QDialogButtonBox.Cancel,
                                           Qt.Horizontal, self)
        self.group_box = QGroupBox(_("Layout Dispay and Order"))
        self.table = QTableView(self)
        self.ok_button = self.button_box.button(QDialogButtonBox.Ok)
        self.cancel_button = self.button_box.button(QDialogButtonBox.Cancel)
        self.cancel_button.setDefault(True)
        self.cancel_button.setAutoDefault(True)

        # widget setup
        self.dialog_size = QSize(300, 200)
        self.setMinimumSize(self.dialog_size)
        self.setFixedSize(self.dialog_size)
        self.setWindowTitle('Layout Settings')

        self.table.setModel(LayoutModel(self.table, order, active))
        self.table.setSelectionBehavior(QAbstractItemView.SelectRows)
        self.table.setSelectionMode(QAbstractItemView.SingleSelection)
        self.table.verticalHeader().hide()
        self.table.horizontalHeader().hide()
        self.table.setAlternatingRowColors(True)
        self.table.setShowGrid(False)
        self.table.setHorizontalScrollBarPolicy(Qt.ScrollBarAlwaysOff)
        self.table.horizontalHeader().setStretchLastSection(True)
        self.table.setColumnHidden(1, True)
        
        # need to keep a reference for pyside not to segfault!
        self._selection_model = self.table.selectionModel()

        # layout
        buttons_layout = QVBoxLayout()
        buttons_layout.addWidget(self.button_move_up)
        buttons_layout.addWidget(self.button_move_down)
        buttons_layout.addStretch()
        buttons_layout.addWidget(self.button_delete)

        group_layout = QHBoxLayout()
        group_layout.addWidget(self.table)
        group_layout.addLayout(buttons_layout)
        self.group_box.setLayout(group_layout)

        layout = QVBoxLayout()
        layout.addWidget(self.group_box)
        layout.addWidget(self.button_box)

        self.setLayout(layout)

        # signals and slots
        self.button_box.accepted.connect(self.accept)
        self.button_box.rejected.connect(self.close)
        self.button_delete.clicked.connect(self.delete_layout)
        self.button_move_up.clicked.connect(lambda: self.move_layout(True))
        self.button_move_down.clicked.connect(lambda: self.move_layout(False))
        self.table.model().dataChanged.connect(
           lambda: self.selection_changed(None, None))
        self._selection_model.selectionChanged.connect(
           lambda: self.selection_changed(None, None))

        # focus table
        index = self.table.model().index(0, 0)
        self.table.setCurrentIndex(index)
        self.table.setFocus()

    def __init__(self, parent, text, title=None, icon=None, contents_title=None, varname=None):
        QDialog.__init__(self, parent)

        # Destroying the C++ object right after closing the dialog box,
        # otherwise it may be garbage-collected in another QThread
        # (e.g. the editor's analysis thread in Spyder), thus leading to
        # a segmentation fault on UNIX or an application crash on Windows
        self.setAttribute(Qt.WA_DeleteOnClose)

        if title is None:
            title = _("Import wizard")
        self.setWindowTitle(title)
        if icon is None:
            self.setWindowIcon(ima.icon("fileimport"))
        if contents_title is None:
            contents_title = _("Raw text")

        if varname is None:
            varname = _("variable_name")

        self.var_name, self.clip_data = None, None

        # Setting GUI
        self.tab_widget = QTabWidget(self)
        self.text_widget = ContentsWidget(self, text)
        self.table_widget = PreviewWidget(self)

        self.tab_widget.addTab(self.text_widget, _("text"))
        self.tab_widget.setTabText(0, contents_title)
        self.tab_widget.addTab(self.table_widget, _("table"))
        self.tab_widget.setTabText(1, _("Preview"))
        self.tab_widget.setTabEnabled(1, False)

        name_layout = QHBoxLayout()
        name_label = QLabel(_("Variable Name"))
        name_layout.addWidget(name_label)

        self.name_edt = QLineEdit()
        self.name_edt.setText(varname)
        name_layout.addWidget(self.name_edt)

        btns_layout = QHBoxLayout()
        cancel_btn = QPushButton(_("Cancel"))
        btns_layout.addWidget(cancel_btn)
        cancel_btn.clicked.connect(self.reject)
        h_spacer = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
        btns_layout.addItem(h_spacer)
        self.back_btn = QPushButton(_("Previous"))
        self.back_btn.setEnabled(False)
        btns_layout.addWidget(self.back_btn)
        self.back_btn.clicked.connect(ft_partial(self._set_step, step=-1))
        self.fwd_btn = QPushButton(_("Next"))
        btns_layout.addWidget(self.fwd_btn)
        self.fwd_btn.clicked.connect(ft_partial(self._set_step, step=1))
        self.done_btn = QPushButton(_("Done"))
        self.done_btn.setEnabled(False)
        btns_layout.addWidget(self.done_btn)
        self.done_btn.clicked.connect(self.process)

        self.text_widget.asDataChanged.connect(self.fwd_btn.setEnabled)
        self.text_widget.asDataChanged.connect(self.done_btn.setDisabled)
        layout = QVBoxLayout()
        layout.addLayout(name_layout)
        layout.addWidget(self.tab_widget)
        layout.addLayout(btns_layout)
        self.setLayout(layout)

class ImportWizard(QDialog):
    """Text data import wizard"""

    def __init__(self, parent, text, title=None, icon=None, contents_title=None, varname=None):
        QDialog.__init__(self, parent)

        # Destroying the C++ object right after closing the dialog box,
        # otherwise it may be garbage-collected in another QThread
        # (e.g. the editor's analysis thread in Spyder), thus leading to
        # a segmentation fault on UNIX or an application crash on Windows
        self.setAttribute(Qt.WA_DeleteOnClose)

        if title is None:
            title = _("Import wizard")
        self.setWindowTitle(title)
        if icon is None:
            self.setWindowIcon(ima.icon("fileimport"))
        if contents_title is None:
            contents_title = _("Raw text")

        if varname is None:
            varname = _("variable_name")

        self.var_name, self.clip_data = None, None

        # Setting GUI
        self.tab_widget = QTabWidget(self)
        self.text_widget = ContentsWidget(self, text)
        self.table_widget = PreviewWidget(self)

        self.tab_widget.addTab(self.text_widget, _("text"))
        self.tab_widget.setTabText(0, contents_title)
        self.tab_widget.addTab(self.table_widget, _("table"))
        self.tab_widget.setTabText(1, _("Preview"))
        self.tab_widget.setTabEnabled(1, False)

        name_layout = QHBoxLayout()
        name_label = QLabel(_("Variable Name"))
        name_layout.addWidget(name_label)

        self.name_edt = QLineEdit()
        self.name_edt.setText(varname)
        name_layout.addWidget(self.name_edt)

        btns_layout = QHBoxLayout()
        cancel_btn = QPushButton(_("Cancel"))
        btns_layout.addWidget(cancel_btn)
        cancel_btn.clicked.connect(self.reject)
        h_spacer = QSpacerItem(40, 20, QSizePolicy.Expanding, QSizePolicy.Minimum)
        btns_layout.addItem(h_spacer)
        self.back_btn = QPushButton(_("Previous"))
        self.back_btn.setEnabled(False)
        btns_layout.addWidget(self.back_btn)
        self.back_btn.clicked.connect(ft_partial(self._set_step, step=-1))
        self.fwd_btn = QPushButton(_("Next"))
        btns_layout.addWidget(self.fwd_btn)
        self.fwd_btn.clicked.connect(ft_partial(self._set_step, step=1))
        self.done_btn = QPushButton(_("Done"))
        self.done_btn.setEnabled(False)
        btns_layout.addWidget(self.done_btn)
        self.done_btn.clicked.connect(self.process)

        self.text_widget.asDataChanged.connect(self.fwd_btn.setEnabled)
        self.text_widget.asDataChanged.connect(self.done_btn.setDisabled)
        layout = QVBoxLayout()
        layout.addLayout(name_layout)
        layout.addWidget(self.tab_widget)
        layout.addLayout(btns_layout)
        self.setLayout(layout)

    def _focus_tab(self, tab_idx):
        """Change tab focus"""
        for i in range(self.tab_widget.count()):
            self.tab_widget.setTabEnabled(i, False)
        self.tab_widget.setTabEnabled(tab_idx, True)
        self.tab_widget.setCurrentIndex(tab_idx)

    def _set_step(self, step):
        """Proceed to a given step"""
        new_tab = self.tab_widget.currentIndex() + step
        assert new_tab < self.tab_widget.count() and new_tab >= 0
        if new_tab == self.tab_widget.count() - 1:
            try:
                self.table_widget.open_data(
                    self._get_plain_text(),
                    self.text_widget.get_col_sep(),
                    self.text_widget.get_row_sep(),
                    self.text_widget.trnsp_box.isChecked(),
                    self.text_widget.get_skiprows(),
                    self.text_widget.get_comments(),
                )
                self.done_btn.setEnabled(True)
                self.done_btn.setDefault(True)
                self.fwd_btn.setEnabled(False)
                self.back_btn.setEnabled(True)
            except (SyntaxError, AssertionError) as error:
                QMessageBox.critical(
                    self,
                    _("Import wizard"),
                    _(
#.........这里部分代码省略.........