def is_ui_running():
""" Returns True if the UI event loop is running.
"""
from engine_manager import options
if options.offscreen:
return True
elif ETSConfig.toolkit == 'wx':
return guisupport.is_event_loop_running_wx()
elif ETSConfig.toolkit == 'qt4':
return guisupport.is_event_loop_running_qt4()
else:
return False
def is_ui_running():
""" Returns True if the UI event loop is running.
"""
from engine_manager import options
if options.offscreen:
return True
elif ETSConfig.toolkit == 'wx':
return guisupport.is_event_loop_running_wx()
elif ETSConfig.toolkit == 'qt4':
return guisupport.is_event_loop_running_qt4()
else:
return False
def view_application(context, view, kind, handler, id, scrollable, args):
""" Creates a stand-alone PyQt application to display a specified traits UI
View.
Parameters
----------
context : object or dictionary
A single object or a dictionary of string/object pairs, whose trait
attributes are to be edited. If not specified, the current object is
used.
view : view object
A View object that defines a user interface for editing trait attribute
values.
kind : string
The type of user interface window to create. See the
**traitsui.view.kind_trait** trait for values and
their meanings. If *kind* is unspecified or None, the **kind**
attribute of the View object is used.
handler : Handler object
A handler object used for event handling in the dialog box. If
None, the default handler for Traits UI is used.
scrollable : Boolean
Indicates whether the dialog box should be scrollable. When set to
True, scroll bars appear on the dialog box if it is not large enough
to display all of the items in the view at one time.
"""
if (kind == "panel") or ((kind is None) and (view.kind == "panel")):
kind = "modal"
app = QtGui.QApplication.instance()
if app is None or not is_event_loop_running_qt4(app):
return ViewApplication(context, view, kind, handler, id, scrollable,
args).ui.result
ui = view.ui(
context,
kind=kind,
handler=handler,
id=id,
scrollable=scrollable,
args=args,
)
# If the UI has not been closed yet, we need to keep a reference to
# it until it does close.
if not ui.destroyed:
KEEP_ALIVE_UIS.add(ui)
ui.on_trait_change(on_ui_destroyed, "destroyed")
return ui.result
def view_application(context, view, kind, handler, id, scrollable, args):
""" Creates a stand-alone PyQt application to display a specified traits UI
View.
Parameters
----------
context : object or dictionary
A single object or a dictionary of string/object pairs, whose trait
attributes are to be edited. If not specified, the current object is
used.
view : view object
A View object that defines a user interface for editing trait attribute
values.
kind : string
The type of user interface window to create. See the
**traitsui.view.kind_trait** trait for values and
their meanings. If *kind* is unspecified or None, the **kind**
attribute of the View object is used.
handler : Handler object
A handler object used for event handling in the dialog box. If
None, the default handler for Traits UI is used.
scrollable : Boolean
Indicates whether the dialog box should be scrollable. When set to
True, scroll bars appear on the dialog box if it is not large enough
to display all of the items in the view at one time.
"""
if (kind == 'panel') or ((kind is None) and (view.kind == 'panel')):
kind = 'modal'
app = QtGui.QApplication.instance()
if app is None or not is_event_loop_running_qt4(app):
return ViewApplication(context, view, kind, handler, id,
scrollable, args).ui.result
ui = view.ui(context,
kind=kind,
handler=handler,
id=id,
scrollable=scrollable,
args=args)
# If the UI has not been closed yet, we need to keep a reference to
# it until it does close.
if not ui.destroyed:
KEEP_ALIVE_UIS.add(ui)
ui.on_trait_change(on_ui_destroyed, 'destroyed')
return ui.result
def view_application(context, view, kind, handler, id, scrollable, args):
""" Creates a stand-alone PyQt application to display a specified traits UI
View.
Parameters
----------
context : object or dictionary
A single object or a dictionary of string/object pairs, whose trait
attributes are to be edited. If not specified, the current object is
used.
view : view object
A View object that defines a user interface for editing trait attribute
values.
kind : string
The type of user interface window to create. See the
**traitsui.view.kind_trait** trait for values and
their meanings. If *kind* is unspecified or None, the **kind**
attribute of the View object is used.
handler : Handler object
A handler object used for event handling in the dialog box. If
None, the default handler for Traits UI is used.
scrollable : Boolean
Indicates whether the dialog box should be scrollable. When set to
True, scroll bars appear on the dialog box if it is not large enough
to display all of the items in the view at one time.
"""
if (kind == 'panel') or ((kind is None) and (view.kind == 'panel')):
kind = 'modal'
app = QtGui.QApplication.instance()
if app is None or not is_event_loop_running_qt4(app):
return ViewApplication(context, view, kind, handler, id, scrollable,
args).ui.result
return view.ui(context,
kind=kind,
handler=handler,
id=id,
scrollable=scrollable,
args=args).result
def exit_app():
# Record whether the event loop is running or not, then exit.
application_running.append(is_event_loop_running_qt4())
application.stop()
def exit_app():
# Record whether the event loop is running or not, then exit.
application_running.append(
is_event_loop_running_qt4()
)
application.stop()
