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Copy pathqthelpers.py
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300 lines (263 loc) · 8.08 KB
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# -*- coding: utf-8 -*-
#
# Copyright © 2009-2011 Pierre Raybaut
# Licensed under the terms of the MIT License
# (copied from Spyder source code [spyderlib.qt])
#
# Qt5 migration would not have been possible without
# 2014-2015 Spyder Development Team work
# (MIT License too, same parent project)
"""Qt utilities"""
# winpython.qt becomes winpython._vendor.qtpy
from winpython._vendor.qtpy.QtWidgets import (
QAction,
QStyle,
QWidget,
QApplication,
QLabel,
QVBoxLayout,
QHBoxLayout,
QLineEdit,
QMenu,
QToolButton,
)
from winpython._vendor.qtpy.QtGui import (
QIcon,
QKeyEvent,
QKeySequence,
QPixmap,
)
from winpython._vendor.qtpy.QtCore import (
Signal,
QObject,
Qt,
QLocale,
QTranslator,
QLibraryInfo,
QEvent,
Slot,
)
from winpython._vendor.qtpy.compat import (
to_qvariant,
from_qvariant,
)
import os
import re
import os.path as osp
import sys
# Local import
from winpython import config
from winpython.py3compat import (
is_text_string,
to_text_string,
)
def get_icon(name):
"""Return QIcon from icon name"""
return QIcon(osp.join(config.IMAGE_PATH, name))
class MacApplication(QApplication):
"""Subclass to be able to open external files with our Mac app"""
open_external_file = Signal(str)
def __init__(self, *args):
QApplication.__init__(self, *args)
def event(self, event):
if event.type() == QEvent.FileOpen:
fname = str(event.file())
# PyQt4 old SIGNAL: self.emit(SIGNAL('open_external_file(QString)'), fname)
self.open_external_file.emit(fname)
return QApplication.event(self, event)
def qapplication(translate=True):
"""Return QApplication instance
Creates it if it doesn't already exist"""
if (
sys.platform == "darwin"
and 'Spyder.app' in __file__
):
SpyderApplication = MacApplication
else:
SpyderApplication = QApplication
app = SpyderApplication.instance()
if not app:
# Set Application name for Gnome 3
# https://groups.google.com/forum/#!topic/pyside/24qxvwfrRDs
app = SpyderApplication(['Spyder'])
if translate:
install_translator(app)
return app
def file_uri(fname):
"""Select the right file uri scheme according to the operating system"""
if os.name == 'nt':
# Local file
if re.search(r'^[a-zA-Z]:', fname):
return 'file:///' + fname
# UNC based path
else:
return 'file://' + fname
else:
return 'file://' + fname
QT_TRANSLATOR = None
def install_translator(qapp):
"""Install Qt translator to the QApplication instance"""
global QT_TRANSLATOR
if QT_TRANSLATOR is None:
qt_translator = QTranslator()
if qt_translator.load(
"qt_" + QLocale.system().name(),
QLibraryInfo.location(
QLibraryInfo.TranslationsPath
),
):
QT_TRANSLATOR = (
qt_translator
) # Keep reference alive
if QT_TRANSLATOR is not None:
qapp.installTranslator(QT_TRANSLATOR)
def keybinding(attr):
"""Return keybinding"""
ks = getattr(QKeySequence, attr)
return from_qvariant(
QKeySequence.keyBindings(ks)[0], str
)
def _process_mime_path(path, extlist):
if path.startswith(r"file://"):
if os.name == 'nt':
# On Windows platforms, a local path reads: file:///c:/...
# and a UNC based path reads like: file://server/share
if path.startswith(
r"file:///"
): # this is a local path
path = path[8:]
else: # this is a unc path
path = path[5:]
else:
path = path[7:]
if osp.exists(path):
if (
extlist is None
or osp.splitext(path)[1] in extlist
):
return path
def mimedata2url(source, extlist=None):
"""
Extract url list from MIME data
extlist: for example ('.py', '.pyw')
"""
pathlist = []
if source.hasUrls():
for url in source.urls():
path = _process_mime_path(
to_text_string(url.toString()), extlist
)
if path is not None:
pathlist.append(path)
elif source.hasText():
for rawpath in to_text_string(
source.text()
).splitlines():
path = _process_mime_path(rawpath, extlist)
if path is not None:
pathlist.append(path)
if pathlist:
return pathlist
def action2button(
action,
autoraise=True,
text_beside_icon=False,
parent=None,
):
"""Create a QToolButton directly from a QAction object"""
if parent is None:
parent = action.parent()
button = QToolButton(parent)
button.setDefaultAction(action)
button.setAutoRaise(autoraise)
if text_beside_icon:
button.setToolButtonStyle(
Qt.ToolButtonTextBesideIcon
)
return button
def toggle_actions(actions, enable):
"""Enable/disable actions"""
if actions is not None:
for action in actions:
if action is not None:
action.setEnabled(enable)
def create_action(
parent,
text,
shortcut=None,
icon=None,
tip=None,
toggled=None,
triggered=None,
data=None,
menurole=None,
context=Qt.WindowShortcut,
):
"""Create a QAction"""
action = QAction(text, parent)
if triggered is not None:
# PyQt4 old SIGNAL: parent.connect(action, SIGNAL("triggered()"), triggered)
action.triggered.connect(triggered)
if toggled is not None:
# PyQt4 old SIGNAL: parent.connect(action, SIGNAL("toggled(bool)"), toggled)
action.toggled.connect(toggled)
action.setCheckable(True)
if icon is not None:
if is_text_string(icon):
icon = get_icon(icon)
action.setIcon(icon)
if shortcut is not None:
action.setShortcut(shortcut)
if tip is not None:
action.setToolTip(tip)
action.setStatusTip(tip)
if data is not None:
action.setData(to_qvariant(data))
if menurole is not None:
action.setMenuRole(menurole)
# TODO: Hard-code all shortcuts and choose context=Qt.WidgetShortcut
# (this will avoid calling shortcuts from another dockwidget
# since the context thing doesn't work quite well with these widgets)
action.setShortcutContext(context)
return action
def add_actions(target, actions, insert_before=None):
"""Add actions to a menu"""
previous_action = None
target_actions = list(target.actions())
if target_actions:
previous_action = target_actions[-1]
if previous_action.isSeparator():
previous_action = None
for action in actions:
if (action is None) and (
previous_action is not None
):
if insert_before is None:
target.addSeparator()
else:
target.insertSeparator(insert_before)
elif isinstance(action, QMenu):
if insert_before is None:
target.addMenu(action)
else:
target.insertMenu(insert_before, action)
elif isinstance(action, QAction):
if insert_before is None:
target.addAction(action)
else:
target.insertAction(insert_before, action)
previous_action = action
def get_std_icon(name, size=None):
"""Get standard platform icon
Call 'show_std_icons()' for details"""
if not name.startswith('SP_'):
name = 'SP_' + name
icon = (
QWidget()
.style()
.standardIcon(getattr(QStyle, name))
)
if size is None:
return icon
else:
return QIcon(icon.pixmap(size, size))