def __init__(self, **kvargs):
super(ProgressLoad, self).__init__(**kvargs)
box = BoxLayout(orientation="vertical", padding=20)
self.label_already_loaded = Label(
text="", size_hint=(1, .1), markup=True)
self.label_total_size = Label(
text="", size_hint=(1, .1), markup=True)
self.progress_load = KProgress()
self.button_cancel = \
Button(text=self.text_button_cancel, on_press=self.events_callback,
background_normal=self.button_cancel_background_normal,
background_down=self.button_cancel_background_down,
size_hint=(1, .2))
self.label_already_loaded.bind(
size=lambda *args: self._update_text_size(args))
self.label_total_size.bind(
size=lambda *args: self._update_text_size(args))
box.add_widget(self.label_already_loaded)
box.add_widget(self.label_total_size)
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(SettingSpacer())
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(self.progress_load)
box.add_widget(Widget(size_hint=(None, .3)))
box.add_widget(SettingSpacer())
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(self.button_cancel)
self.progress_load.min = 0
self.progress_load.max = 100
self.progress_load.bar_value = 0
self.progress_load.spacing_widget = 2
self.progress_load.height_widget = 1
self.progress_load.color = self.progress_line_color
self.progress_load.background_color = self.progress_background_color
self.progress_load.border_color = self.progress_border_color
self.body = Popup(title=self.title, content=box, auto_dismiss=False,
size_hint=self.size_hint)
class ProgressLoad(Widget):
retrieve_callback = ObjectProperty(p)
events_callback = ObjectProperty(p)
on_load = ObjectProperty(p)
"""Функция для обработки событий окна."""
dismiss_callback = ObjectProperty(None)
"""Функция, которая будет вызвана после закрытия окна."""
size_hint = ListProperty((.7, .5))
"""Размер окна."""
base_font_size = NumericProperty(18)
"""Размер базового шрифта для текстовой информации."""
title = StringProperty("Progress Download:")
"""Подпись окна."""
button_cancel_background_down = StringProperty(
"atlas://data/images/defaulttheme/button_pressed"
)
"""background нажатой кнопки добавления ответа в форум."""
button_cancel_background_normal = StringProperty(
"atlas://data/images/defaulttheme/button"
)
"""background не нажатой кнопки добавления ответа в форум."""
text_already_loaded = StringProperty("Already loaded - {} byte")
text_total_size = StringProperty("Total size - {} byte")
progress_line_color = StringProperty("#ff7f32")
progress_background_color = StringProperty("#2fbfe0")
progress_border_color = StringProperty("#2fbfe0")
text_button_cancel = StringProperty("Cancel")
def __init__(self, **kvargs):
super(ProgressLoad, self).__init__(**kvargs)
box = BoxLayout(orientation="vertical", padding=20)
self.label_already_loaded = Label(
text="", size_hint=(1, .1), markup=True)
self.label_total_size = Label(
text="", size_hint=(1, .1), markup=True)
self.progress_load = KProgress()
self.button_cancel = \
Button(text=self.text_button_cancel, on_press=self.events_callback,
background_normal=self.button_cancel_background_normal,
background_down=self.button_cancel_background_down,
size_hint=(1, .2))
self.label_already_loaded.bind(
size=lambda *args: self._update_text_size(args))
self.label_total_size.bind(
size=lambda *args: self._update_text_size(args))
box.add_widget(self.label_already_loaded)
box.add_widget(self.label_total_size)
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(SettingSpacer())
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(self.progress_load)
box.add_widget(Widget(size_hint=(None, .3)))
box.add_widget(SettingSpacer())
box.add_widget(Widget(size_hint=(None, .02)))
box.add_widget(self.button_cancel)
self.progress_load.min = 0
self.progress_load.max = 100
self.progress_load.bar_value = 0
self.progress_load.spacing_widget = 2
self.progress_load.height_widget = 1
self.progress_load.color = self.progress_line_color
self.progress_load.background_color = self.progress_background_color
self.progress_load.border_color = self.progress_border_color
self.body = Popup(title=self.title, content=box, auto_dismiss=False,
size_hint=self.size_hint)
def show(self, link, path, on_load=None):
"""
:type link: str;
:param link: адресс загрузки;
:type path: str;
:param path: путь к директории для сохранения загруженного контента;
:type on_load: function;
:param on_load: функция, вызываемая после окончания процесса загрузки;
"""
if callable(self.dismiss_callback):
self.body.bind(on_dismiss=self.dismiss_callback)
if callable(on_load):
self._on_load = on_load
self.body.open()
thread = \
threading.Thread(target=self.retrieve_callback,
args=(link, path, self._tick_callback,
self._on_load,))
thread.start()
def _on_load(self):
pass
def _tick_callback(self, already_loaded, total_size):
"""
Отрисовка прогресса загрузки.
:type already_loaded: int;
:param already_loaded: текущее колличество загруженного контента
в байтах;
:type total_size: int;
:param total_size: общее колличество загруженного контента в байтах;
"""
value = (already_loaded * 100) / total_size
self.progress_load.add_value_percent(value)
self.label_already_loaded.text = \
self.text_already_loaded.format(already_loaded)
self.label_total_size.text = self.text_total_size.format(total_size)
if value == 100:
self.body.dismiss()
def _update_text_size(self, *args):
label = args[0][0]
width = args[0][1][0]
label.text_size = (width - 10, 20)