def create_downloading_item(self, downloading_dict):
book_name = downloading_dict['file_name']
item_widget = QWidget()
item_widget.setObjectName(f'{downloading_dict["id"]}')
hbox_layout = QHBoxLayout()
item_label = QLabel()
item_label.setPixmap(QPixmap(os.path.join(assets_path, 'book.png')))
hbox_layout.addWidget(item_label)
vlayout = QVBoxLayout()
file_name_label = QLabel(book_name)
download_progress = ProgressBar(
minimum=0, maximum=100, textVisible=False, objectName=f'{downloading_dict["id"]}_progress_bar')
style_sheet = f'''
#{downloading_dict["id"]}_progress_bar {{
min-height: 6px;
max-height: 6px;
border-radius: 6px;
}}
#{downloading_dict["id"]}_progress_bar::chunk {{
border-radius: 6px;
width:12px;
background-color: #D20A0A;
}}
'''
download_progress.setStyleSheet(style_sheet)
vlayout.addWidget(file_name_label)
vlayout.addWidget(download_progress)
h_in_v_item_layout = QHBoxLayout()
h_in_v_item_layout.addWidget(
QLabel(downloading_dict['size']), Qt.AlignLeft)
percent_label = QLabel()
percent_label.setObjectName(f'{downloading_dict["id"]}_percent')
percent_label.setText(f'已经下载:0%')
h_in_v_item_layout.addWidget(percent_label, Qt.AlignHCenter)
speed_label = QLabel()
speed_label.setObjectName(f'{downloading_dict["id"]}_speed')
speed_label.setText("0 kb/s")
h_in_v_item_layout.addWidget(speed_label, Qt.AlignRight)
vlayout.addLayout(h_in_v_item_layout)
hbox_layout.addLayout(vlayout)
del_btn = QPushButton()
del_btn.setIcon(QIcon(os.path.join(assets_path, 'delete.png')))
del_btn.setStyleSheet("QPushButton{border:none}")
del_btn.clicked.connect(
lambda: self.remove_task(downloading_dict["id"]))
hbox_layout.addWidget(del_btn)
item_widget.setLayout(hbox_layout)
item_widget_style_sheet = f'#{downloading_dict["id"]}{{background-color:rgb(241,231,230);color:rgb(210,10,10)}}'
item_widget.setStyleSheet(item_widget_style_sheet)
return item_widget
def __init__(self, parent=None):
super().__init__(parent)
self.screen_width, self.screen_height = get_screen_res(screen)
self.screen_res: str = f'{self.screen_width}x{self.screen_height}'
self.payload: Dict[str, str] = {
'sorting': 'random',
'categories': '100',
'atleast': self.screen_res
}
self.sw = StackedWidget()
self.progressbar = ProgressBar()
self.progressbar.hide()
self.prev_btn = Button('angle-left.svg', key='left')
self.next_btn = Button('angle-right.svg', key='right')
self.update_btn = Button('sync-alt.svg', ' Update', key='r')
self.apply_btn = Button('check.svg', 'Apply')
self.save_btn = Button('save.svg', 'Save')
self.prev_btn.clicked.connect(self.prev)
self.next_btn.clicked.connect(self.next)
self.apply_btn.clicked.connect(self.apply)
self.update_btn.clicked.connect(self.update_)
self.save_btn.clicked.connect(self.save)
self.saved_msg = QLabel('Saved')
self.image_count = QLabel()
self.image_res = QLabel()
self.saved_msg.setStyleSheet(f'color: {INFO_COLOR}')
self.image_count.setStyleSheet(f'color: {INFO_COLOR}')
self.image_res.setStyleSheet(f'color: {INFO_COLOR}')
self.info_layout = QHBoxLayout()
self.info_layout.addWidget(self.progressbar)
self.info_layout.addStretch()
self.info_layout.addWidget(self.image_count)
self.info_layout.addWidget(self.image_res)
button_layout = QHBoxLayout()
button_layout.addWidget(self.prev_btn)
button_layout.addWidget(self.next_btn)
button_layout.addWidget(self.update_btn)
button_layout.addWidget(self.apply_btn)
button_layout.addWidget(self.save_btn)
self.main_layout = QVBoxLayout()
self.main_layout.addLayout(self.info_layout)
self.main_layout.addWidget(self.sw)
self.main_layout.addLayout(button_layout)
self.setLayout(self.main_layout)
self.sw.added.connect(self.change_image_count)
def init_progressbar(self):
self.progressbar = ProgressBar(self,
minimum=0,
maximum=0,
textVisible=False,
objectName="RedProgressBar")
self.progressbar.setGeometry(QRect(-10, 0, 1230, 4))
self.progressbar.setMaximumSize(16777215, 3)
self.progressbar.setMinimumSize(0, 2)
self.progressbar.start()
self.progressbar.setTextVisible(False)
self.progressbar.setHidden(True)
def fit(self, dataset, num_epochs=1):
qstates = self.preprocessBatching(dataset["qstates"])
qvalues = self.preprocessBatching(dataset["qvalues"])
idx = list(range(qstates.shape[0]))
random.shuffle(idx)
num_batches = len(idx) // self.batch_size
X = nd.array(qstates[idx], ctx=self.ctx)\
.reshape([num_batches, self.batch_size] + list(qstates.shape[1:]))
Y = nd.array(qvalues[idx], ctx=self.ctx)\
.reshape([num_batches, self.batch_size] + list(qvalues.shape[1:]))
alpha = self.alpha
progressBar = ProgressBar(maxval=num_epochs)
for e in range(num_epochs):
if self.progbar:
progressBar.printProgress(e,
prefix="Training Q(s,a)",
suffix="%s / %s" %
(e + 1, num_epochs))
if ((e + 1) % 100) == 0: # 100 epoch alpha decay
alpha = alpha / 2.0
for i in range(num_batches):
with autograd.record():
outputs, hidden_states = self.nn(X[i])
loss = self.mean_loss(outputs, Y[i])
loss.backward()
self.optimizer(self.params, alpha)
# Keep a moving average of the losses
if (i == 0) and (e == 0):
self.moving_loss = np.mean(loss.asnumpy()[0])
else:
self.moving_loss = 0.99 * self.moving_loss + 0.01 * \
np.mean(loss.asnumpy()[0])
def build(self):
self.panel.pack((5, 5))
self.label = Label(self.panel, self.label)
self.panel.pack(self.label, fill=True)
self.progressbar = ProgressBar(self.panel)
self.panel.pack(self.progressbar, fill=True, padding=15)
class CustomProgressDialog(SimpleDialog):
label = None
progressbar = None
button_box = None
cancel_btn = None
result = None
callback = None
args = None
msg = ''
def __init__(self, parent, title, size=(500, 100), style=VERTICAL,
resizable=False, action_button=const.BUTTON_CANCEL,
add_line=False, margin=None,
button_box_padding=0):
self.label = title
self.action_button = action_button
self.button_box_padding = button_box_padding
SimpleDialog.__init__(self, parent, title, size, style, resizable,
self.on_load, add_line, margin)
def build(self):
self.panel.pack((5, 5))
self.label = Label(self.panel, self.label)
self.panel.pack(self.label, fill=True)
self.progressbar = ProgressBar(self.panel)
self.panel.pack(self.progressbar, fill=True, padding=15)
def set_dialog_buttons(self):
self.button_box = HPanel(self.box)
self.box.pack(self.button_box, fill=True,
padding_all=self.button_box_padding)
self.button_box.pack(HPanel(self.button_box), fill=True, expand=True)
self.cancel_btn = Button(self.button_box, '', onclick=self.on_cancel,
default=True, pid=const.BUTTON_CANCEL)
self.cancel_btn.set_enable(False)
self.button_box.pack(self.cancel_btn)
self.fit()
def on_cancel(self):
self.end_modal(const.BUTTON_CANCEL)
def show(self):
self.show_modal()
return self.result
def update_data(self, value, msg):
self.label.set_text(msg)
self.label.Update()
self.progressbar.set_value(value)
self.progressbar.Update()
self.Update()
wx.Yield()
def on_load(self, *args):
self._timer.Stop()
self.progressbar.set_value(5)
try:
if self.callback and self.args:
self.result = self.callback(*self.args)
except Exception as e:
LOG.exception('Error in progress dialog running: %s', e)
finally:
self.progressbar.set_value(98)
self.end_modal(const.BUTTON_CANCEL)
def run(self, callback, args):
self.callback, self.args = callback, args
return self.show()
class KindleHelper(KindleHelperUI, QMainWindow):
def __init__(self, parent=None):
super(KindleHelper, self).__init__(parent)
self.version = "1.1.0"
self.setWindowTitle("Kindle助手")
if os.sys.platform == 'darwin':
self.setWindowIcon(QIcon(os.path.join(root, 'src', 'kindle.icns')))
else:
self.setWindowIcon(QIcon(os.path.join(root, 'src', 'logo.ico')))
self.setupUi(self)
self.clipboard = QApplication.clipboard()
self.init_ui()
def init_ui(self):
self.init_sider_btn_groups()
self.init_search_page()
self.init_direct_tab()
self.init_net_pan_tab()
self.init_progressbar()
self.init_systray()
self.init_trigger()
def init_trigger(self):
self.downloaded_widget.send_trigger.connect(
self.sended_page.add_sended_item)
self.task_widget.new_task_trigger.connect(self.download)
def init_systray(self):
self.tray = SysTray(self)
self.tray.trigger.connect(self.systray_trigger_callback)
self.tray.show()
def systray_trigger_callback(self, action_dict):
if action_dict['visible']:
# self.setVisible(True)
self.show()
if action_dict['quit']:
# self.setVisible(False)
self.hide()
sys.exit()
def init_search_page(self):
self.search_book_lineEdit.returnPressed.connect(self.input_search)
def init_progressbar(self):
self.progressbar = ProgressBar(self,
minimum=0,
maximum=0,
textVisible=False,
objectName="RedProgressBar")
self.progressbar.setGeometry(QRect(-10, 0, 1230, 4))
self.progressbar.setMaximumSize(16777215, 3)
self.progressbar.setMinimumSize(0, 2)
self.progressbar.start()
self.progressbar.setTextVisible(False)
self.progressbar.setHidden(True)
def init_sider_btn_groups(self):
self.sider_page_dict = {
"search_btn": 0,
"new_task_btn": 1,
"downloading_btn": 2,
"done_btn": 3,
"send_btn": 4,
"about_btn": 5
}
self.search_btn.clicked.connect(
lambda: self.sider_btn_checked(self.search_btn))
self.new_task_btn.clicked.connect(
lambda: self.sider_btn_checked(self.new_task_btn))
self.downloading_btn.clicked.connect(
lambda: self.sider_btn_checked(self.downloading_btn))
self.done_btn.clicked.connect(
lambda: self.sider_btn_checked(self.done_btn))
self.send_btn.clicked.connect(
lambda: self.sider_btn_checked(self.send_btn))
self.about_btn.clicked.connect(
lambda: self.sider_btn_checked(self.about_btn))
def sider_btn_checked(self, btn):
self.search_btn.setChecked(False)
self.new_task_btn.setChecked(False)
self.downloading_btn.setChecked(False)
self.done_btn.setChecked(False)
self.send_btn.setChecked(False)
self.about_btn.setChecked(False)
self.stackedWidget.setCurrentIndex(
self.sider_page_dict[btn.objectName()])
btn.setChecked(True)
def input_search(self):
search_keyword = self.search_book_lineEdit.text().strip()
# self.search_book_lineEdit.setDisabled(True)
if search_keyword == "":
QMessageBox.warning(self, "KindleHelper", "搜索书籍名称不能为空!")
# self.search_book_lineEdit.setDisabled(False)
# return
else:
self.progressbar.setHidden(False)
self.start_work_thread(search_keyword)
def start_work_thread(self, keyword):
self.search_worker = SearchWorker(keyword)
self.search_worker.trigger.connect(self.callback_search)
self.search_worker.start()
def callback_search(self, download_dict):
# self.search_book_lineEdit.setDisabled(False)
self.progressbar.setHidden(True)
self.callback_search_direct_tab(download_dict['direct'])
self.callback_search_net_tab(download_dict['net'])
def callback_search_direct_tab(self, direct_download_dict_list):
self.direct_tab.setRowCount(0)
row_count = 0
for direct_download_dict in direct_download_dict_list:
if direct_download_dict:
key = list(direct_download_dict.keys())[0]
self.direct_tab.insertRow(row_count)
self.direct_tab.setRowHeight(row_count, 60)
book_name = key
book_size = direct_download_dict[key]['size']
speed = direct_download_dict[key]['speed']
download_url = direct_download_dict[key]['download']
download_dict = {
"id":
hashlib.md5(download_url.encode('utf-8')).hexdigest(),
"file_name": book_name,
"url": download_url,
"size": book_size
}
download_btn = self.create_download_btn(download_dict)
self.direct_tab.setItem(row_count, 0,
QTableWidgetItem(book_name))
self.direct_tab.setItem(row_count, 1,
QTableWidgetItem(book_size))
self.direct_tab.setItem(row_count, 2, QTableWidgetItem(speed))
self.direct_tab.setCellWidget(row_count, 3, download_btn)
row_count += 1
def callback_search_net_tab(self, net_download_dict_list):
self.net_pan_tab.setRowCount(0)
row_count = 0
for net_download_dict in net_download_dict_list:
if net_download_dict:
key = list(net_download_dict.keys())[0]
self.net_pan_tab.insertRow(row_count)
self.net_pan_tab.setRowHeight(row_count, 60)
book_name = key
self.net_pan_tab.setItem(row_count, 0,
QTableWidgetItem(book_name))
btn_groups_dict = self.create_net_pan_btn_groups_dict(
net_download_dict)
for key in btn_groups_dict:
self.net_pan_tab.setCellWidget(row_count, key,
btn_groups_dict[key])
row_count += 1
def create_net_pan_btn_groups_dict(self, net_pan_dict):
btn_dict = {}
pan_dict = net_pan_dict[list(net_pan_dict.keys())[0]]
for key in pan_dict:
widget = QWidget()
widget.setObjectName(
f'{hashlib.md5(key.encode("utf-8")).hexdigest()}_widget')
btn = QPushButton()
btn.setStyleSheet("QPushButton{border:none}")
btn.setToolTip('打开浏览器下载文件')
hbox_layout = QHBoxLayout()
hbox_layout.addWidget(btn, Qt.AlignHCenter)
widget.setLayout(hbox_layout)
if '百度网盘' in key:
btn.setIcon(QIcon(os.path.join(assets, 'baidu.png')))
btn.setObjectName(f'{key}-{pan_dict[key]}')
btn.clicked.connect(self.copy_download_url)
btn_dict[1] = widget
elif '腾讯微云' == key:
btn.setIcon(QIcon(os.path.join(assets, 'tengxun.png')))
btn.setObjectName(f'{pan_dict[key]}')
btn.clicked.connect(self.copy_download_url)
btn_dict[2] = widget
else:
btn.setIcon(QIcon(os.path.join(assets, 'chengtong.png')))
btn.setObjectName(f'{pan_dict[key]}')
btn.clicked.connect(self.copy_download_url)
btn_dict[3] = widget
return btn_dict
def copy_download_url(self):
self.clipboard.setText(self.sender().objectName())
QMessageBox.information(self, None, '下载地址成功复制到剪贴板!')
def create_download_btn(self, download_dict):
widget = QWidget()
download_btn = QPushButton()
download_btn.setIcon(QIcon(os.path.join(assets, 'download_btn.png')))
download_btn.setObjectName("item_download_btn")
download_btn.setStyleSheet("QPushButton#item_download_btn{\n"
" border:none;}")
download_btn.clicked.connect(
lambda: self.download_book(download_btn, download_dict))
hbox_layout = QHBoxLayout()
hbox_layout.addWidget(download_btn, Qt.AlignHCenter)
widget.setLayout(hbox_layout)
return widget
def init_direct_tab(self):
self.direct_tab = QTableWidget()
self.direct_tab.setFrameShape(QFrame.NoFrame)
self.direct_tab.setColumnCount(4)
self.direct_tab.horizontalHeader().setStretchLastSection(True)
self.direct_tab.setSelectionMode(QAbstractItemView.SingleSelection)
self.direct_tab.setSelectionBehavior(QAbstractItemView.SelectRows)
self.direct_tab.setHorizontalHeaderLabels(
['文件名称', '文件大小', '下载时间', '操作'])
self.direct_tab.horizontalHeader().setSectionsClickable(False)
self.direct_tab.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.direct_tab.setColumnWidth(0, 600)
self.direct_tab.setColumnWidth(1, 100)
self.direct_tab.setColumnWidth(2, 100)
self.direct_tab.setColumnWidth(3, 40)
hbox_layout = QHBoxLayout()
hbox_layout.addWidget(self.direct_tab)
self.direct_download.setLayout(hbox_layout)
def init_net_pan_tab(self):
self.net_pan_tab = QTableWidget()
self.net_pan_tab.setFrameShape(QFrame.NoFrame)
self.net_pan_tab.setColumnCount(4)
self.net_pan_tab.horizontalHeader().setStretchLastSection(True)
self.net_pan_tab.setSelectionMode(QAbstractItemView.SingleSelection)
self.net_pan_tab.setSelectionBehavior(QAbstractItemView.SelectRows)
self.net_pan_tab.setHorizontalHeaderLabels(
['文件名称', '百度网盘', '腾讯微云', '城通网盘'])
self.net_pan_tab.horizontalHeader().setSectionsClickable(False)
self.net_pan_tab.setEditTriggers(QAbstractItemView.NoEditTriggers)
self.net_pan_tab.setColumnWidth(0, 480)
self.net_pan_tab.setColumnWidth(1, 120)
self.net_pan_tab.setColumnWidth(2, 120)
self.net_pan_tab.setColumnWidth(3, 120)
hbox_layout = QHBoxLayout()
hbox_layout.addWidget(self.net_pan_tab)
self.netpan.setLayout(hbox_layout)
def download_book(self, button, download_dict):
if not self.downloading_widget.check_download(download_dict):
QMessageBox.information(
self, None, "当前站点同一时间只支持单个文件下载，请等待下载结束后再尝试，或者删除其他正在下载的任务！")
return
row = self.direct_tab.indexAt(button.pos()).row()
self.direct_tab.removeRow(row)
QMessageBox.about(self, None, '开始下载')
self.download(download_dict)
def download(self, download_dict):
download_worker = DownloadWorker(download_dict)
download_worker.trigger.connect(self.callback_download)
download_worker.download_trigger.connect(
self.callback_download_progress)
download_worker.start()
self.downloading_widget.add_downloading_item(
download_dict, lambda: download_worker.terminate())
def callback_download(self, download_return_list):
finish_or_not, download_dict = download_return_list
if finish_or_not is None:
return
msg = f'{download_dict["file_name"]}下载失败!'
if finish_or_not:
msg = f'{download_dict["file_name"]}下载完成!'
self.downloading_widget.remove_task(download_dict['id'])
self.downloaded_widget.add_downloaded_item(download_dict)
QMessageBox.information(self, None, msg)
def callback_download_progress(self, download_progress_dict):
self.downloading_widget.update_progress(download_progress_dict)
def closeEvent(self, event):
quit_flag = QMessageBox.question(self, '退出确认', '确认退出应用程序?',
QMessageBox.Yes | QMessageBox.No)
event.ignore()
if quit_flag == QMessageBox.Yes:
event.accept()
sys.exit()
else:
# self.setVisible(False)
self.hide()
class Changewall(QDialog):
""" Parent of all the widgets """
def __init__(self, parent=None):
super().__init__(parent)
self.screen_width, self.screen_height = get_screen_res(screen)
self.screen_res: str = f'{self.screen_width}x{self.screen_height}'
self.payload: Dict[str, str] = {
'sorting': 'random',
'categories': '100',
'atleast': self.screen_res
}
self.sw = StackedWidget()
self.progressbar = ProgressBar()
self.progressbar.hide()
self.prev_btn = Button('angle-left.svg', key='left')
self.next_btn = Button('angle-right.svg', key='right')
self.update_btn = Button('sync-alt.svg', ' Update', key='r')
self.apply_btn = Button('check.svg', 'Apply')
self.save_btn = Button('save.svg', 'Save')
self.prev_btn.clicked.connect(self.prev)
self.next_btn.clicked.connect(self.next)
self.apply_btn.clicked.connect(self.apply)
self.update_btn.clicked.connect(self.update_)
self.save_btn.clicked.connect(self.save)
self.saved_msg = QLabel('Saved')
self.image_count = QLabel()
self.image_res = QLabel()
self.saved_msg.setStyleSheet(f'color: {INFO_COLOR}')
self.image_count.setStyleSheet(f'color: {INFO_COLOR}')
self.image_res.setStyleSheet(f'color: {INFO_COLOR}')
self.info_layout = QHBoxLayout()
self.info_layout.addWidget(self.progressbar)
self.info_layout.addStretch()
self.info_layout.addWidget(self.image_count)
self.info_layout.addWidget(self.image_res)
button_layout = QHBoxLayout()
button_layout.addWidget(self.prev_btn)
button_layout.addWidget(self.next_btn)
button_layout.addWidget(self.update_btn)
button_layout.addWidget(self.apply_btn)
button_layout.addWidget(self.save_btn)
self.main_layout = QVBoxLayout()
self.main_layout.addLayout(self.info_layout)
self.main_layout.addWidget(self.sw)
self.main_layout.addLayout(button_layout)
self.setLayout(self.main_layout)
self.sw.added.connect(self.change_image_count)
def prev(self) -> None:
""" Show previous image in stacked widget """
current_index: int = self.sw.currentIndex()
if current_index > 0:
self.sw.setCurrentIndex(current_index - 1)
logger.debug(
f"Stacked widget's current index is {self.sw.currentIndex()}")
self.change_info()
def next(self) -> None:
""" Show next image in stacked widget """
current_index: int = self.sw.currentIndex()
self.sw.setCurrentIndex(current_index + 1)
logger.debug(
f"Stacked widget's current index is {self.sw.currentIndex()}")
self.change_info()
def update_(self) -> None:
"""
Download new json, new thumbnails and delete old ones
with clearing stacked widget
"""
for file in THUMBS_DIR.iterdir():
logger.debug(f'Deleting {short_path(file)}')
file.unlink()
# Clear stacked widget
for _ in range(self.sw.count()):
widget = self.sw.widget(0)
self.sw.removeWidget(widget)
del widget
download = Download(JSON_FILE,
APP_DIR,
SEARCH_URL,
payload=self.payload)
download.save()
self.progressbar.show()
self.download_thumbs()
def apply(self) -> None:
""" Set current image as wallpaper """
for file in CURRENT_DIR.iterdir():
file.unlink()
logger.debug(f'Deleted {short_path(file)}')
image_id: str = self.sw.current_image_id()
info: Dict[str, str] = image_info(image_id)
image: Path = Path(info['image_id'] + info['extension'])
self.progressbar.show()
download = Download(image,
CURRENT_DIR,
info['full_image_url'],
stream=True)
download.finished_chunk.connect(self.set_progressbar)
download.finished_file.connect(set_wall)
download.save()
def save(self) -> None:
"""
Save image to CURRENT_DIR
When image is saved, show Saved label
"""
image_id: str = self.sw.current_image_id()
info: Dict[str, str] = image_info(image_id)
image: Path = Path(info['image_id'] + info['extension'])
self.progressbar.show()
download = Download(image,
SAVED_DIR,
info['full_image_url'],
stream=True)
download.finished_chunk.connect(self.set_progressbar)
download.save()
# Show message "Saved" for 3 seconds in info layout
self.info_layout.insertWidget(2, self.saved_msg)
self.saved_msg.show()
QTimer.singleShot(3000, self.hide_msg)
save_msg: bool = config.getboolean('Program', 'show_save_message')
def disable_save_msg():
config['Program']['show_save_message'] = 'no'
config_save()
logger.debug('Save message is now disabled')
# Create and show "save message box" if it is set to True
if save_msg:
msgBox = QMessageBox(self)
msgBox.setIcon(QMessageBox.Information)
msgBox.setText('Saved')
msgBox.setInformativeText(
f'The image has been saved to \n{str(SAVED_DIR)}')
msgBox.setStandardButtons(QMessageBox.Ok)
dontshow_btn = msgBox.addButton("Don't show again",
QMessageBox.ActionRole)
dontshow_btn.clicked.connect(disable_save_msg)
msgBox.exec_()
def hide_msg(self) -> None:
""" Remove save label from info layout and hide it """
self.info_layout.removeWidget(self.saved_msg)
self.saved_msg.hide()
def download_thumbs(self) -> None:
"""
Parse JSON_FILE then download thumbnails asynchronously.
Each time thumbnail is downloaded, signals are emitted to
stacked widget and progressbar
"""
with open(JSON_FILE, 'r') as f:
data: Dict = json.load(f)
for item in data['data']:
url: str = item['thumbs']['large']
name: Path = Path(item['id'] + '.' + url[-3:])
dt = DownloadThread(name, THUMBS_DIR, url)
dt.finished_file.connect(self.sw.add)
dt.finished_file.connect(self.set_progressbar)
QThreadPool.globalInstance().start(dt)
def change_image_count(self) -> None:
"""
Update info of current image position in stacked widget
and total number of images
"""
self.image_count.setText(self.sw.count_info())
def change_info(self) -> None:
"""
Everytime change_info is called
it get info of current image to
update label 'image_res' with
image resolution and image
position in stacked widget
"""
info: Dict[str, str] = image_info(self.sw.current_image_id())
self.change_image_count()
if len(info) > 0:
self.image_res.setText(info['resolution'])
else:
self.image_res.setText('Image info not found')
def set_progressbar(self, _) -> None:
"""
Update progressbar and hide it
when it reaches its maximum
"""
current: int = self.progressbar.value()
self.progressbar.setValue(current + 1)
if current == self.progressbar.maximum():
self.progressbar.hide()
self.progressbar.setValue(0)
def load(self) -> None:
"""
Download thumbnails if THUMBS_DIR is empty
or JSON_FILE don't exist.
Otherwise fill stacked widget with existing thumbnails
"""
create_dirs(THUMBS_DIR, CURRENT_DIR, SAVED_DIR)
if JSON_FILE.exists():
if not is_dir_contains_images(THUMBS_DIR):
logger.debug(
f"{short_path(THUMBS_DIR)} is empty. Downloading new thumbnails"
)
self.progressbar.show()
self.download_thumbs()
else:
logger.debug('Filling stacked widget')
self.sw.fill()
self.change_info()
else:
logger.debug(f"{short_path(JSON_FILE)} doesn't exist. Updating")
self.update_()
def resize_move(self) -> None:
""" Resize and move window using parameters from settings """
try:
self.resize(*win_size)
logger.debug(f'Resized window to {win_size}')
except:
logger.warning('Could not resize window')
if win_pos:
try:
self.move(*win_pos)
logger.debug(f'Moved window to {win_pos}')
except:
logger.warning('Could not move window to a new position')
def closeEvent(self, event) -> None:
""" Save window size and position before closing the window"""
config['Program']['window_size'] = f'{self.width()}, {self.height()}'
config['Program']['window_position'] = f'{self.x()}, {self.y()}'
config_save()
def main():
# define arguments
parser = argparse.ArgumentParser()
parser.add_argument("--render",
action="store_true",
help="Render the state")
parser.add_argument("--render_interval",
type=int,
default=10,
help="Number of rollouts to skip before rendering")
parser.add_argument("--num_rollouts",
type=int,
default=-1,
help="Number of max rollouts")
parser.add_argument("--logfile",
type=str,
help="Indicate where to save rollout data")
parser.add_argument(
"--load_params",
type=str,
help="Load previously learned parameters from [LOAD_PARAMS]")
parser.add_argument("--save_params",
type=str,
help="Save learned parameters to [SAVE_PARAMS]")
parser.add_argument("--silent",
action="store_true",
help="Suppress print of the DQN config")
parser.add_argument("--gamma",
type=float,
default=0.99,
help="Discount factor")
parser.add_argument("--epsilon",
type=float,
default=0.1,
help="Random factor (for Epsilon-greedy)")
parser.add_argument("--eps_anneal",
type=int,
default=0,
help="The amount of episodes to anneal epsilon by")
parser.add_argument("--sample_size",
type=int,
default=256,
help="Number of samples from the dataset per episode")
parser.add_argument("--num_epochs",
type=int,
default=50,
help="Number of epochs to run per episode")
parser.add_argument("--episode_length",
type=int,
default=128,
help="Number of rollouts per episode")
parser.add_argument("--noise",
type=float,
help="Amount of noise to add to the actions")
parser.add_argument("--test", action="store_true", help="Test the params")
args = parser.parse_args()
signal.signal(signal.SIGINT, stopsigCallback)
global stopsig
# create the basketball environment
env = BasketballVelocityEnv(fps=60.0,
timeInterval=1.0,
goal=[0, 5, 0],
initialLengths=np.array([0, 0, 1, 1, 1, 0, 1]),
initialAngles=np.array(
[0, 45, -20, -20, 0, -20, 0]))
# create space
stateSpace = ContinuousSpace(ranges=env.state_range())
actionSpace = DiscreteSpace(intervals=[25 for i in range(7)] + [1],
ranges=env.action_range())
processor = DQNProcessor(actionSpace)
# create the model and policy functions
modelFn = DQNNetwork(
sizes=[stateSpace.n + actionSpace.n, 128, 256, 256, 128, 1],
alpha=0.001,
use_gpu=True,
momentum=0.9)
if args.load_params:
print("Loading params...")
modelFn.load_params(args.load_params)
allActions = actionSpace.sampleAll()
policyFn = EpsilonGreedyPolicy(
epsilon=args.epsilon if not args.test else 0,
getActionsFn=lambda state: allActions,
distributionFn=lambda qstate: modelFn(qstate),
processor=processor)
replayBuffer = RingBuffer(max_limit=2048)
if args.logfile:
log = open(args.logfile, "a")
if not args.silent:
print("Env space range:", env.state_range())
print("Env action range:", env.action_range())
print("State space:", stateSpace.n)
print("Action space:", actionSpace.n)
print("Action space bins:", actionSpace.bins)
print("Epsilon:", args.epsilon)
print("Epsilon anneal episodes:", args.eps_anneal)
print("Gamma:", args.gamma)
__actionShape = policyFn.getActions(None).shape
totalActions = np.prod(actionSpace.bins)
print("Actions are sampled:", __actionShape[0] != totalActions)
print("Number of actions:", totalActions)
rollout = 0
if not args.silent and not args.test:
iterationBar = ProgressBar(maxval=args.episode_length)
while args.num_rollouts == -1 or rollout < args.num_rollouts:
if stopsig: break
if not args.silent and not args.test:
iterationBar.printProgress(rollout % args.episode_length,
prefix="Query(s,a,s',r)",
suffix="epsilon: " +
str(policyFn.epsilon))
state = env.reset()
reward = 0
done = False
steps = 0
while not done and steps < 5: # 5 step max
action = policyFn(state)
if steps == 4: # throw immediately
action[-2] = 0
action[-1] = 1
envAction = processor.process_env_action(action)
if args.noise:
envAction[:7] += np.random.normal(scale=np.ones([7]) *
args.noise)
nextState, reward, done, info = env.step(envAction)
replayBuffer.append([state, action, nextState, reward, done])
if args.test and done: print("Reward:", reward)
state = nextState
steps += 1
if args.render and (rollout + 1) % args.render_interval == 0:
env.render()
rollout += 1
if args.eps_anneal > 0: # linear anneal
epsilon_diff = args.epsilon - min(0.1, args.epsilon)
policyFn.epsilon = args.epsilon - min(rollout, args.eps_anneal) / \
float(args.eps_anneal) * epsilon_diff
if rollout % args.episode_length == 0 and not args.test:
dataset = replayBuffer.sample(args.sample_size)
states = np.array([d[0] for d in dataset])
actions = np.array([d[1] for d in dataset])
nextStates = [d[2] for d in dataset]
rewards = np.array([[d[3]]
for d in dataset]) # rewards require extra []
terminal = [d[4] for d in dataset]
QS0 = processor.process_Qstate(states, actions)
Q1 = np.zeros(rewards.shape, dtype=np.float32)
if not args.silent:
progressBar = ProgressBar(maxval=len(nextStates))
for i, nextState in enumerate(nextStates):
if stopsig: break
if not args.silent:
progressBar.printProgress(i,
prefix="Creating Q(s,a)",
suffix="%s / %s" %
(i + 1, len(nextStates)))
if terminal[i]: continue # 0
dist = modelFn(
processor.process_Qstate(
repmat(nextState, allActions.shape[0], 1), allActions))
Q1[i, 0] = np.max(dist) # max[a' in A]Q(s', a')
if stopsig: break
Q0_ = rewards + args.gamma * Q1
modelFn.fit({
"qstates": QS0,
"qvalues": Q0_
},
num_epochs=args.num_epochs)
avgQ = np.sum(Q0_) / Q0_.shape[0]
avgR = np.sum(rewards) / rewards.shape[0]
print("Rollouts:", rollout, "Error:", modelFn.score(),
"Average Q:", avgQ, "Average R:", avgR)
print("")
if args.logfile:
log.write("[" + str(rollout) + ", " + str(modelFn.score()) +
", " + str(avgQ) + ", " + str(avgR) + "]\n")
if args.logfile:
log.close()
if args.save_params:
print("Saving params...")
modelFn.save_params(args.save_params)