def init_help_menu(self):
# please keep the Help menu in Mac Os even if empty. It will
# automatically contain a search field to search inside menus and
# please keep it spelled in English, as long as Qt Doesn't support
# a QAction.MenuRole like HelpMenuRole otherwise it will lose
# this search field functionality
self.help_menu = self.menuBar().addMenu("&Help")
# Help Menu
self.intro_active_frontend_action = QtGui.QAction(
"&Intro to IPython", self, triggered=self.intro_active_frontend)
self.add_menu_action(self.help_menu, self.intro_active_frontend_action)
self.quickref_active_frontend_action = QtGui.QAction(
"IPython &Cheat Sheet",
self,
triggered=self.quickref_active_frontend)
self.add_menu_action(self.help_menu,
self.quickref_active_frontend_action)
self.guiref_active_frontend_action = QtGui.QAction(
"&Qt Console", self, triggered=self.guiref_active_frontend)
self.add_menu_action(self.help_menu,
self.guiref_active_frontend_action)
self.onlineHelpAct = QtGui.QAction("Open Online &Help",
self,
triggered=self._open_online_help)
self.add_menu_action(self.help_menu, self.onlineHelpAct)
def get_font(family, fallback=None):
"""Return a font of the requested family, using fallback as alternative.
If a fallback is provided, it is used in case the requested family isn't
found. If no fallback is given, no alternative is chosen and Qt's internal
algorithms may automatically choose a fallback font.
Parameters
----------
family : str
A font name.
fallback : str
A font name.
Returns
-------
font : QFont object
"""
font = QtGui.QFont(family)
# Check whether we got what we wanted using QFontInfo, since exactMatch()
# is overly strict and returns false in too many cases.
font_info = QtGui.QFontInfo(font)
if fallback is not None and font_info.family() != family:
font = QtGui.QFont(fallback)
return font
def svg_to_image(string, size=None):
""" Convert a SVG document to a QImage.
Parameters
----------
string : basestring
A Python string containing a SVG document.
size : QSize, optional
The size of the image that is produced. If not specified, the SVG
document's default size is used.
Raises
------
ValueError
If an invalid SVG string is provided.
Returns
-------
A QImage of format QImage.Format_ARGB32.
"""
if isinstance(string, unicode_type):
string = string.encode('utf-8')
renderer = QtSvg.QSvgRenderer(QtCore.QByteArray(string))
if not renderer.isValid():
raise ValueError('Invalid SVG data.')
if size is None:
size = renderer.defaultSize()
image = QtGui.QImage(size, QtGui.QImage.Format_ARGB32)
painter = QtGui.QPainter(image)
renderer.render(painter)
return image
def paintEvent(self, event):
""" Reimplemented to paint the background panel.
"""
painter = QtGui.QStylePainter(self)
option = QtGui.QStyleOptionFrame()
option.initFrom(self)
painter.drawPrimitive(QtGui.QStyle.PE_PanelTipLabel, option)
painter.end()
super(CallTipWidget, self).paintEvent(event)
def __init__(self, *args, **kw):
super(FrontendWidget, self).__init__(*args, **kw)
# FIXME: remove this when PySide min version is updated past 1.0.7
# forcefully disable calltips if PySide is < 1.0.7, because they crash
if qt.QT_API == qt.QT_API_PYSIDE:
import PySide
if PySide.__version_info__ < (1, 0, 7):
self.log.warn(
"PySide %s < 1.0.7 detected, disabling calltips" %
PySide.__version__)
self.enable_calltips = False
# FrontendWidget protected variables.
self._bracket_matcher = BracketMatcher(self._control)
self._call_tip_widget = CallTipWidget(self._control)
self._copy_raw_action = QtGui.QAction('Copy (Raw Text)', None)
self._hidden = False
self._highlighter = FrontendHighlighter(self, lexer=self.lexer)
self._input_splitter = self._input_splitter_class()
self._kernel_manager = None
self._kernel_client = None
self._request_info = {}
self._request_info['execute'] = {}
self._callback_dict = {}
self._display_banner = True
# Configure the ConsoleWidget.
self.tab_width = 4
self._set_continuation_prompt('... ')
# Configure the CallTipWidget.
self._call_tip_widget.setFont(self.font)
self.font_changed.connect(self._call_tip_widget.setFont)
# Configure actions.
action = self._copy_raw_action
key = QtCore.Qt.CTRL | QtCore.Qt.SHIFT | QtCore.Qt.Key_C
action.setEnabled(False)
action.setShortcut(QtGui.QKeySequence(key))
action.setShortcutContext(QtCore.Qt.WidgetWithChildrenShortcut)
action.triggered.connect(self.copy_raw)
self.copy_available.connect(action.setEnabled)
self.addAction(action)
# Connect signal handlers.
document = self._control.document()
document.contentsChange.connect(self._document_contents_change)
# Set flag for whether we are connected via localhost.
self._local_kernel = kw.get('local_kernel',
FrontendWidget._local_kernel)
# Whether or not a clear_output call is pending new output.
self._pending_clearoutput = False
def __init__(self, name, parent):
super(MagicHelper, self).__init__(name, parent)
self.data = None
class MinListWidget(QtGui.QListWidget):
"""Temp class to overide the default QListWidget size hint
in order to make MagicHelper narrow
"""
def sizeHint(self):
s = QtCore.QSize()
s.setHeight(super(MinListWidget,self).sizeHint().height())
s.setWidth(self.sizeHintForColumn(0))
return s
# construct content
self.frame = QtGui.QFrame()
self.search_label = QtGui.QLabel("Search:")
self.search_line = QtGui.QLineEdit()
self.search_class = QtGui.QComboBox()
self.search_list = MinListWidget()
self.paste_button = QtGui.QPushButton("Paste")
self.run_button = QtGui.QPushButton("Run")
# layout all the widgets
main_layout = QtGui.QVBoxLayout()
search_layout = QtGui.QHBoxLayout()
search_layout.addWidget(self.search_label)
search_layout.addWidget(self.search_line, 10)
main_layout.addLayout(search_layout)
main_layout.addWidget(self.search_class)
main_layout.addWidget(self.search_list, 10)
action_layout = QtGui.QHBoxLayout()
action_layout.addWidget(self.paste_button)
action_layout.addWidget(self.run_button)
main_layout.addLayout(action_layout)
self.frame.setLayout(main_layout)
self.setWidget(self.frame)
# connect all the relevant signals to handlers
self.visibilityChanged[bool].connect( self._update_magic_helper )
self.search_class.activated[int].connect(
self.class_selected
)
self.search_line.textChanged[str].connect(
self.search_changed
)
self.search_list.itemDoubleClicked.connect(
self.paste_requested
)
self.paste_button.clicked[bool].connect(
self.paste_requested
)
self.run_button.clicked[bool].connect(
self.run_requested
)
def __init__(self, text_edit):
""" Create a call tip manager that is attached to the specified Qt
text edit widget.
"""
assert isinstance(text_edit, (QtGui.QTextEdit, QtGui.QPlainTextEdit))
super(BracketMatcher, self).__init__()
# The format to apply to matching brackets.
self.format = QtGui.QTextCharFormat()
self.format.setBackground(QtGui.QColor('silver'))
self._text_edit = text_edit
text_edit.cursorPositionChanged.connect(self._cursor_position_changed)
def init_edit_menu(self):
self.edit_menu = self.menuBar().addMenu("&Edit")
self.undo_action = QtGui.QAction(
"&Undo",
self,
shortcut=QtGui.QKeySequence.Undo,
statusTip="Undo last action if possible",
triggered=self.undo_active_frontend)
self.add_menu_action(self.edit_menu, self.undo_action)
self.redo_action = QtGui.QAction(
"&Redo",
self,
shortcut=QtGui.QKeySequence.Redo,
statusTip="Redo last action if possible",
triggered=self.redo_active_frontend)
self.add_menu_action(self.edit_menu, self.redo_action)
self.edit_menu.addSeparator()
self.cut_action = QtGui.QAction("&Cut",
self,
shortcut=QtGui.QKeySequence.Cut,
triggered=self.cut_active_frontend)
self.add_menu_action(self.edit_menu, self.cut_action, True)
self.copy_action = QtGui.QAction("&Copy",
self,
shortcut=QtGui.QKeySequence.Copy,
triggered=self.copy_active_frontend)
self.add_menu_action(self.edit_menu, self.copy_action, True)
self.copy_raw_action = QtGui.QAction(
"Copy (&Raw Text)",
self,
shortcut="Ctrl+Shift+C",
triggered=self.copy_raw_active_frontend)
self.add_menu_action(self.edit_menu, self.copy_raw_action, True)
self.paste_action = QtGui.QAction("&Paste",
self,
shortcut=QtGui.QKeySequence.Paste,
triggered=self.paste_active_frontend)
self.add_menu_action(self.edit_menu, self.paste_action, True)
self.edit_menu.addSeparator()
selectall = QtGui.QKeySequence(QtGui.QKeySequence.SelectAll)
if selectall.matches("Ctrl+A") and sys.platform != 'darwin':
# Only override the default if there is a collision.
# Qt ctrl = cmd on OSX, so the match gets a false positive on OSX.
selectall = "Ctrl+Shift+A"
self.select_all_action = QtGui.QAction(
"Select &All",
self,
shortcut=selectall,
triggered=self.select_all_active_frontend)
self.add_menu_action(self.edit_menu, self.select_all_action, True)
def setUpClass(cls):
""" Create the application for the test case.
"""
cls._app = QtGui.QApplication.instance()
if cls._app is None:
cls._app = QtGui.QApplication([])
cls._app.setQuitOnLastWindowClosed(False)
def _get_color(self, color):
""" Returns a QColor built from a Pygments color string.
"""
qcolor = QtGui.QColor()
qcolor.setRgb(int(color[:2], base=16), int(color[2:4], base=16),
int(color[4:6], base=16))
return qcolor
def _insert_img(self, cursor, img, fmt, metadata=None):
""" insert a raw image, jpg or png """
if metadata:
width = metadata.get('width', None)
height = metadata.get('height', None)
else:
width = height = None
try:
image = QtGui.QImage()
image.loadFromData(img, fmt.upper())
if width and height:
image = image.scaled(
width,
height,
transformMode=QtCore.Qt.SmoothTransformation)
elif width and not height:
image = image.scaledToWidth(
width, transformMode=QtCore.Qt.SmoothTransformation)
elif height and not width:
image = image.scaledToHeight(
height, transformMode=QtCore.Qt.SmoothTransformation)
except ValueError:
self._insert_plain_text(cursor, 'Received invalid %s data.' % fmt)
else:
format = self._add_image(image)
cursor.insertBlock()
cursor.insertImage(format)
cursor.insertBlock()
def save_svg(string, parent=None):
""" Prompts the user to save an SVG document to disk.
Parameters
----------
string : basestring
A Python string containing a SVG document.
parent : QWidget, optional
The parent to use for the file dialog.
Returns
-------
The name of the file to which the document was saved, or None if the save
was cancelled.
"""
if isinstance(string, unicode_type):
string = string.encode('utf-8')
dialog = QtGui.QFileDialog(parent, 'Save SVG Document')
dialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
dialog.setDefaultSuffix('svg')
dialog.setNameFilter('SVG document (*.svg)')
if dialog.exec_():
filename = dialog.selectedFiles()[0]
f = open(filename, 'wb')
try:
f.write(string)
finally:
f.close()
return filename
return None
def _get_brush(self, color):
""" Returns a brush for the color.
"""
result = self._brushes.get(color)
if result is None:
qcolor = self._get_color(color)
result = QtGui.QBrush(qcolor)
self._brushes[color] = result
return result
def init_file_menu(self):
self.file_menu = self.menuBar().addMenu("&File")
self.new_kernel_tab_act = QtGui.QAction(
"New Tab with &New kernel",
self,
shortcut="Ctrl+T",
triggered=self.create_tab_with_new_frontend)
self.add_menu_action(self.file_menu, self.new_kernel_tab_act)
self.slave_kernel_tab_act = QtGui.QAction(
"New Tab with Sa&me kernel",
self,
shortcut="Ctrl+Shift+T",
triggered=self.create_tab_with_current_kernel)
self.add_menu_action(self.file_menu, self.slave_kernel_tab_act)
self.file_menu.addSeparator()
self.close_action = QtGui.QAction("&Close Tab",
self,
shortcut=QtGui.QKeySequence.Close,
triggered=self.close_active_frontend)
self.add_menu_action(self.file_menu, self.close_action)
self.export_action = QtGui.QAction(
"&Save to HTML/XHTML",
self,
shortcut=QtGui.QKeySequence.Save,
triggered=self.export_action_active_frontend)
self.add_menu_action(self.file_menu, self.export_action, True)
self.file_menu.addSeparator()
printkey = QtGui.QKeySequence(QtGui.QKeySequence.Print)
if printkey.matches("Ctrl+P") and sys.platform != 'darwin':
# Only override the default if there is a collision.
# Qt ctrl = cmd on OSX, so the match gets a false positive on OSX.
printkey = "Ctrl+Shift+P"
self.print_action = QtGui.QAction(
"&Print",
self,
shortcut=printkey,
triggered=self.print_action_active_frontend)
self.add_menu_action(self.file_menu, self.print_action, True)
if sys.platform != 'darwin':
# OSX always has Quit in the Application menu, only add it
# to the File menu elsewhere.
self.file_menu.addSeparator()
self.quit_action = QtGui.QAction(
"&Quit",
self,
shortcut=QtGui.QKeySequence.Quit,
triggered=self.close,
)
self.add_menu_action(self.file_menu, self.quit_action)
def closeEvent(self, event):
""" Forward the close event to every tabs contained by the windows
"""
if self.tab_widget.count() == 0:
# no tabs, just close
event.accept()
return
# Do Not loop on the widget count as it change while closing
title = self.window().windowTitle()
cancel = QtGui.QMessageBox.Cancel
okay = QtGui.QMessageBox.Ok
accept_role = QtGui.QMessageBox.AcceptRole
if self.confirm_exit:
if self.tab_widget.count() > 1:
msg = "Close all tabs, stop all kernels, and Quit?"
else:
msg = "Close console, stop kernel, and Quit?"
info = "Kernels not started here (e.g. notebooks) will be left alone."
closeall = QtGui.QPushButton("&Quit", self)
closeall.setShortcut('Q')
box = QtGui.QMessageBox(QtGui.QMessageBox.Question, title, msg)
box.setInformativeText(info)
box.addButton(cancel)
box.addButton(closeall, QtGui.QMessageBox.YesRole)
box.setDefaultButton(closeall)
box.setEscapeButton(cancel)
pixmap = QtGui.QPixmap(self._app.icon.pixmap(QtCore.QSize(64, 64)))
box.setIconPixmap(pixmap)
reply = box.exec_()
else:
reply = okay
if reply == cancel:
event.ignore()
return
if reply == okay or reply == accept_role:
while self.tab_widget.count() >= 1:
# prevent further confirmations:
widget = self.active_frontend
widget._confirm_exit = False
self.close_tab(widget)
event.accept()
def _add_image(self, image):
""" Adds the specified QImage to the document and returns a
QTextImageFormat that references it.
"""
document = self._control.document()
name = str(image.cacheKey())
document.addResource(QtGui.QTextDocument.ImageResource,
QtCore.QUrl(name), image)
format = QtGui.QTextImageFormat()
format.setName(name)
return format
def _save_image(self, name, format='PNG'):
""" Shows a save dialog for the ImageResource with 'name'.
"""
dialog = QtGui.QFileDialog(self._control, 'Save Image')
dialog.setAcceptMode(QtGui.QFileDialog.AcceptSave)
dialog.setDefaultSuffix(format.lower())
dialog.setNameFilter('%s file (*.%s)' % (format, format.lower()))
if dialog.exec_():
filename = dialog.selectedFiles()[0]
image = self._get_image(name)
image.save(filename, format)
def test_qt_cursor(self):
""" Does the Qt kill ring maintain state with cursor movement?
"""
text_edit = QtGui.QPlainTextEdit()
ring = QtKillRing(text_edit)
ring.kill('foo')
ring.kill('bar')
ring.yank()
text_edit.moveCursor(QtGui.QTextCursor.Left)
ring.rotate()
self.assertEqual(text_edit.toPlainText(), 'bar')
def get_color(self, color, intensity=0):
""" Returns a QColor for a given color code, or None if one cannot be
constructed.
"""
if color is None:
return None
# Adjust for intensity, if possible.
if color < 8 and intensity > 0:
color += 8
constructor = self.color_map.get(color, None)
if isinstance(constructor, string_types):
# If this is an X11 color name, we just hope there is a close SVG
# color name. We could use QColor's static method
# 'setAllowX11ColorNames()', but this is global and only available
# on X11. It seems cleaner to aim for uniformity of behavior.
return QtGui.QColor(constructor)
elif isinstance(constructor, (tuple, list)):
return QtGui.QColor(*constructor)
return None
def init_window_menu(self):
self.window_menu = self.menuBar().addMenu("&Window")
if sys.platform == 'darwin':
# add min/maximize actions to OSX, which lacks default bindings.
self.minimizeAct = QtGui.QAction(
"Mini&mize",
self,
shortcut="Ctrl+m",
statusTip="Minimize the window/Restore Normal Size",
triggered=self.toggleMinimized)
# maximize is called 'Zoom' on OSX for some reason
self.maximizeAct = QtGui.QAction(
"&Zoom",
self,
shortcut="Ctrl+Shift+M",
statusTip="Maximize the window/Restore Normal Size",
triggered=self.toggleMaximized)
self.add_menu_action(self.window_menu, self.minimizeAct)
self.add_menu_action(self.window_menu, self.maximizeAct)
self.window_menu.addSeparator()
prev_key = "Ctrl+Shift+Left" if sys.platform == 'darwin' else "Ctrl+PgUp"
self.prev_tab_act = QtGui.QAction("Pre&vious Tab",
self,
shortcut=prev_key,
statusTip="Select previous tab",
triggered=self.prev_tab)
self.add_menu_action(self.window_menu, self.prev_tab_act)
next_key = "Ctrl+Shift+Right" if sys.platform == 'darwin' else "Ctrl+PgDown"
self.next_tab_act = QtGui.QAction("Ne&xt Tab",
self,
shortcut=next_key,
statusTip="Select next tab",
triggered=self.next_tab)
self.add_menu_action(self.window_menu, self.next_tab_act)
def init_kernel_menu(self):
self.kernel_menu = self.menuBar().addMenu("&Kernel")
# Qt on OSX maps Ctrl to Cmd, and Meta to Ctrl
# keep the signal shortcuts to ctrl, rather than
# platform-default like we do elsewhere.
ctrl = "Meta" if sys.platform == 'darwin' else "Ctrl"
self.interrupt_kernel_action = QtGui.QAction(
"&Interrupt current Kernel",
self,
triggered=self.interrupt_kernel_active_frontend,
shortcut=ctrl + "+C",
)
self.add_menu_action(self.kernel_menu, self.interrupt_kernel_action)
self.restart_kernel_action = QtGui.QAction(
"&Restart current Kernel",
self,
triggered=self.restart_kernel_active_frontend,
shortcut=ctrl + "+.",
)
self.add_menu_action(self.kernel_menu, self.restart_kernel_action)
self.kernel_menu.addSeparator()
self.confirm_restart_kernel_action = QtGui.QAction(
"&Confirm kernel restart",
self,
checkable=True,
checked=self.active_frontend.confirm_restart,
triggered=self.toggle_confirm_restart_active_frontend)
self.add_menu_action(self.kernel_menu,
self.confirm_restart_kernel_action)
self.tab_widget.currentChanged.connect(self.update_restart_checkbox)
def init_magic_menu(self):
self.magic_menu = self.menuBar().addMenu("&Magic")
self.add_menu_action(self.magic_menu,
self.magic_helper.toggleViewAction())
self.magic_menu_separator = self.magic_menu.addSeparator()
self.reset_action = QtGui.QAction(
"&Reset",
self,
statusTip="Clear all variables from workspace",
triggered=self.reset_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.reset_action)
self.history_action = QtGui.QAction(
"&History",
self,
statusTip="show command history",
triggered=self.history_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.history_action)
self.save_action = QtGui.QAction(
"E&xport History ",
self,
statusTip="Export History as Python File",
triggered=self.save_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.save_action)
self.who_action = QtGui.QAction(
"&Who",
self,
statusTip="List interactive variables",
triggered=self.who_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.who_action)
self.who_ls_action = QtGui.QAction(
"Wh&o ls",
self,
statusTip="Return a list of interactive variables",
triggered=self.who_ls_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.who_ls_action)
self.whos_action = QtGui.QAction(
"Who&s",
self,
statusTip="List interactive variables with details",
triggered=self.whos_magic_active_frontend)
self.add_menu_action(self.magic_menu, self.whos_action)
def test_qt_basic(self):
""" Does the Qt kill ring work?
"""
text_edit = QtGui.QPlainTextEdit()
ring = QtKillRing(text_edit)
ring.kill('foo')
ring.kill('bar')
ring.yank()
ring.rotate()
ring.yank()
self.assertEqual(text_edit.toPlainText(), 'foobar')
text_edit.clear()
ring.kill('baz')
ring.yank()
ring.rotate()
ring.rotate()
ring.rotate()
self.assertEqual(text_edit.toPlainText(), 'foo')
def _context_menu_make(self, pos):
""" Reimplemented to return a custom context menu for images.
"""
format = self._control.cursorForPosition(pos).charFormat()
name = format.stringProperty(QtGui.QTextFormat.ImageName)
if name:
menu = QtGui.QMenu()
menu.addAction('Copy Image', lambda: self._copy_image(name))
menu.addAction('Save Image As...', lambda: self._save_image(name))
menu.addSeparator()
svg = self._name_to_svg_map.get(name, None)
if svg is not None:
menu.addSeparator()
menu.addAction('Copy SVG', lambda: svg_to_clipboard(svg))
menu.addAction('Save SVG As...',
lambda: save_svg(svg, self._control))
else:
menu = super(RichIPythonWidget, self)._context_menu_make(pos)
return menu
def __init__(
self,
app,
confirm_exit=True,
new_frontend_factory=None,
slave_frontend_factory=None,
):
""" Create a tabbed MainWindow for managing IPython FrontendWidgets
Parameters
----------
app : reference to QApplication parent
confirm_exit : bool, optional
Whether we should prompt on close of tabs
new_frontend_factory : callable
A callable that returns a new IPythonWidget instance, attached to
its own running kernel.
slave_frontend_factory : callable
A callable that takes an existing IPythonWidget, and returns a new
IPythonWidget instance, attached to the same kernel.
"""
super(MainWindow, self).__init__()
self._kernel_counter = 0
self._app = app
self.confirm_exit = confirm_exit
self.new_frontend_factory = new_frontend_factory
self.slave_frontend_factory = slave_frontend_factory
self.tab_widget = QtGui.QTabWidget(self)
self.tab_widget.setDocumentMode(True)
self.tab_widget.setTabsClosable(True)
self.tab_widget.tabCloseRequested[int].connect(self.close_tab)
self.setCentralWidget(self.tab_widget)
# hide tab bar at first, since we have no tabs:
self.tab_widget.tabBar().setVisible(False)
# prevent focus in tab bar
self.tab_widget.setFocusPolicy(QtCore.Qt.NoFocus)
def _show_interpreter_prompt_for_reply(self, msg):
""" Reimplemented for IPython-style prompts.
"""
# Update the old prompt number if necessary.
content = msg['content']
# abort replies do not have any keys:
if content['status'] == 'aborted':
if self._previous_prompt_obj:
previous_prompt_number = self._previous_prompt_obj.number
else:
previous_prompt_number = 0
else:
previous_prompt_number = content['execution_count']
if self._previous_prompt_obj and \
self._previous_prompt_obj.number != previous_prompt_number:
block = self._previous_prompt_obj.block
# Make sure the prompt block has not been erased.
if block.isValid() and block.text():
# Remove the old prompt and insert a new prompt.
cursor = QtGui.QTextCursor(block)
cursor.movePosition(QtGui.QTextCursor.Right,
QtGui.QTextCursor.KeepAnchor,
self._previous_prompt_obj.length)
prompt = self._make_in_prompt(previous_prompt_number)
self._prompt = self._insert_html_fetching_plain_text(
cursor, prompt)
# When the HTML is inserted, Qt blows away the syntax
# highlighting for the line, so we need to rehighlight it.
self._highlighter.rehighlightBlock(cursor.block())
self._previous_prompt_obj = None
# Show a new prompt with the kernel's estimated prompt number.
self._show_interpreter_prompt(previous_prompt_number + 1)
def init_qt_elements(self):
# Create the widget.
base_path = os.path.abspath(os.path.dirname(__file__))
icon_path = os.path.join(base_path, 'resources', 'icon',
'IPythonConsole.svg')
self.app.icon = QtGui.QIcon(icon_path)
QtGui.QApplication.setWindowIcon(self.app.icon)
ip = self.ip
local_kernel = (not self.existing) or is_local_ip(ip)
self.widget = self.widget_factory(config=self.config,
local_kernel=local_kernel)
self.init_colors(self.widget)
self.widget._existing = self.existing
self.widget._may_close = not self.existing
self.widget._confirm_exit = self.confirm_exit
self.widget._display_banner = self.display_banner
self.widget.kernel_manager = self.kernel_manager
self.widget.kernel_client = self.kernel_client
self.window = MainWindow(
self.app,
confirm_exit=self.confirm_exit,
new_frontend_factory=self.new_frontend_master,
slave_frontend_factory=self.new_frontend_slave,
)
self.window.log = self.log
self.window.add_tab_with_frontend(self.widget)
self.window.init_magic_helper()
self.window.init_menu_bar()
# Ignore on OSX, where there is always a menu bar
if sys.platform != 'darwin' and self.hide_menubar:
self.window.menuBar().setVisible(False)
self.window.setWindowTitle('IPython')
def _get_format_from_style(self, token, style):
""" Returns a QTextCharFormat for token by reading a Pygments style.
"""
result = QtGui.QTextCharFormat()
for key, value in style.style_for_token(token).items():
if value:
if key == 'color':
result.setForeground(self._get_brush(value))
elif key == 'bgcolor':
result.setBackground(self._get_brush(value))
elif key == 'bold':
result.setFontWeight(QtGui.QFont.Bold)
elif key == 'italic':
result.setFontItalic(True)
elif key == 'underline':
result.setUnderlineStyle(
QtGui.QTextCharFormat.SingleUnderline)
elif key == 'sans':
result.setFontStyleHint(QtGui.QFont.SansSerif)
elif key == 'roman':
result.setFontStyleHint(QtGui.QFont.Times)
elif key == 'mono':
result.setFontStyleHint(QtGui.QFont.TypeWriter)
return result
def get_format(self):
""" Returns a QTextCharFormat that encodes the current style attributes.
"""
format = QtGui.QTextCharFormat()
# Set foreground color
qcolor = self.get_color(self.foreground_color, self.intensity)
if qcolor is not None:
format.setForeground(qcolor)
# Set background color
qcolor = self.get_color(self.background_color, self.intensity)
if qcolor is not None:
format.setBackground(qcolor)
# Set font weight/style options
if self.bold:
format.setFontWeight(QtGui.QFont.Bold)
else:
format.setFontWeight(QtGui.QFont.Normal)
format.setFontItalic(self.italic)
format.setFontUnderline(self.underline)
return format
def init_view_menu(self):
self.view_menu = self.menuBar().addMenu("&View")
if sys.platform != 'darwin':
# disable on OSX, where there is always a menu bar
self.toggle_menu_bar_act = QtGui.QAction(
"Toggle &Menu Bar",
self,
shortcut="Ctrl+Shift+M",
statusTip="Toggle visibility of menubar",
triggered=self.toggle_menu_bar)
self.add_menu_action(self.view_menu, self.toggle_menu_bar_act)
fs_key = "Ctrl+Meta+F" if sys.platform == 'darwin' else "F11"
self.full_screen_act = QtGui.QAction(
"&Full Screen",
self,
shortcut=fs_key,
statusTip="Toggle between Fullscreen and Normal Size",
triggered=self.toggleFullScreen)
self.add_menu_action(self.view_menu, self.full_screen_act)
self.view_menu.addSeparator()
self.increase_font_size = QtGui.QAction(
"Zoom &In",
self,
shortcut=QtGui.QKeySequence.ZoomIn,
triggered=self.increase_font_size_active_frontend)
self.add_menu_action(self.view_menu, self.increase_font_size, True)
self.decrease_font_size = QtGui.QAction(
"Zoom &Out",
self,
shortcut=QtGui.QKeySequence.ZoomOut,
triggered=self.decrease_font_size_active_frontend)
self.add_menu_action(self.view_menu, self.decrease_font_size, True)
self.reset_font_size = QtGui.QAction(
"Zoom &Reset",
self,
shortcut="Ctrl+0",
triggered=self.reset_font_size_active_frontend)
self.add_menu_action(self.view_menu, self.reset_font_size, True)
self.view_menu.addSeparator()
self.clear_action = QtGui.QAction(
"&Clear Screen",
self,
shortcut='Ctrl+L',
statusTip="Clear the console",
triggered=self.clear_magic_active_frontend)
self.add_menu_action(self.view_menu, self.clear_action)
self.pager_menu = self.view_menu.addMenu("&Pager")
hsplit_action = QtGui.QAction(
".. &Horizontal Split",
self,
triggered=lambda: self.set_paging_active_frontend('hsplit'))
vsplit_action = QtGui.QAction(
" : &Vertical Split",
self,
triggered=lambda: self.set_paging_active_frontend('vsplit'))
inside_action = QtGui.QAction(
" &Inside Pager",
self,
triggered=lambda: self.set_paging_active_frontend('inside'))
self.pager_menu.addAction(hsplit_action)
self.pager_menu.addAction(vsplit_action)
self.pager_menu.addAction(inside_action)