def _perform_load_widget(self, widget_name, update_kv_lang=True):
'''Loads the widget if everything is ok
:param widget_name name of the widget to display
:param update_kv_lang if True, reloads the kv file. If False, keep the
kv lang text
'''
self.root_name = widget_name
self.root = None
self.sandbox.clear_widgets()
widgets = get_current_project().app_widgets
try:
target = widgets[widget_name]
if update_kv_lang:
# updates kv lang text with file
kv_path = target.kv_path
if kv_path:
self.kv_code_input.text = open(kv_path).read()
else:
show_message(
'Could not found the associated .kv file with %s'
' widget' % widget_name, 5, 'error')
self.kv_code_input.text = ''
self.root_app_widget = target
wdg = get_app_widget(target)
if wdg is None:
self.kv_code_input.have_error = True
self.add_widget_to_parent(wdg, None, from_undo=True, from_kv=True)
self.kv_code_input.path = target.kv_path
except (KeyError, AttributeError):
show_message('Failed to load %s widget' % widget_name, 5, 'error')
def _clean_old_kv(self, path):
'''
Removes widgets and rules already processed to this file
:param path: file path - the same that in app_widgets
'''
for key in dict(self.app_widgets):
wd = self.app_widgets[key]
if path != wd.kv_path:
continue
wdg = get_app_widget(wd)
if wdg is None:
p = get_designer().ui_creator.playground
if p.root_name == wd.name:
wdg = p._last_root
if not wdg:
continue
if wd.is_dynamic:
del self.app_widgets[key]
rules = Builder.match(wdg)
# Cleaning widget rules
for _rule in rules:
for _tuple in Builder.rules[:]:
if _tuple[1] == _rule:
Builder.rules.remove(_tuple)
if wd.is_dynamic:
Factory.unregister(wd.name.split('@')[0])
# Cleaning class rules
for rule in Builder.rules[:]:
if rule[1].name == '<' + wd.name + '>':
Builder.rules.remove(rule)
break
def _perform_load_widget(self, widget_name, update_kv_lang=True):
'''Loads the widget if everything is ok
:param widget_name name of the widget to display
:param update_kv_lang if True, reloads the kv file. If False, keep the
kv lang text
'''
self.root_name = widget_name
self.root = None
self.sandbox.clear_widgets()
widgets = get_current_project().app_widgets
try:
target = widgets[widget_name]
if update_kv_lang:
# updates kv lang text with file
kv_path = target.kv_path
if kv_path:
self.kv_code_input.text = open(kv_path,
encoding='utf-8').read()
else:
show_message(
'Could not found the associated .kv file with %s'
' widget' % widget_name, 5, 'error'
)
self.kv_code_input.text = ''
self.root_app_widget = target
wdg = get_app_widget(target)
if wdg is None:
self.kv_code_input.have_error = True
self.add_widget_to_parent(wdg, None, from_undo=True, from_kv=True)
self.kv_code_input.path = target.kv_path
except (KeyError, AttributeError):
show_message(
'Failed to load %s widget' % widget_name, 5, 'error')
def get_widget(self, widget_name, **default_args):
'''This function is used to get the instance of class of name,
widgetname.
:param widget_name: name of the widget to be instantiated
'''
widget = None
for _widget in widgets_common:
if _widget[0] == widget_name and _widget[1] == 'custom':
app_widgets = get_current_project().app_widgets
widget = get_app_widget(app_widgets[widget_name])
break
if not widget:
try:
widget = Factory.get(widget_name)(**default_args)
except:
pass
return widget
def get_widget(self, widget_name, **default_args):
'''This function is used to get the instance of class of name,
widgetname.
:param widget_name: name of the widget to be instantiated
'''
widget = None
for _widget in widgets_common:
if _widget[0] == widget_name and _widget[1] == 'custom':
app_widgets = get_current_project().app_widgets
widget = get_app_widget(app_widgets[widget_name])
break
if not widget:
try:
widget = Factory.get(widget_name)(**default_args)
except:
pass
return widget