BallonsTranslator / ui /io_thread.py
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init
b2fbb41
import numpy as np
import os.path as osp
import traceback
from qtpy.QtCore import Qt, Signal, QUrl, QThread
from qtpy.QtGui import QImage, QPixmap
from qtpy.QtWidgets import QDialog, QMessageBox, QFileDialog
from utils.logger import logger as LOGGER
from utils.io_utils import imread, imwrite
from utils.message import create_error_dialog
from utils.proj_imgtrans import ProjImgTrans
from .custom_widget import ProgressMessageBox
from .misc import pixmap2ndarray
class ThreadBase(QThread):
_thread_exception_type = None
_thread_error_msg = 'Thread job failed.'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.job = None
def on_exec_failed(self):
return
def run(self):
if self.job is not None:
try:
self.job()
except Exception as e:
self.on_exec_failed()
create_error_dialog(e, self._thread_error_msg, self._thread_exception_type)
self.job = None
class ImgSaveThread(ThreadBase):
img_writed = Signal(str)
_thread_exception_type = 'ImgSaveThread'
_thread_error_msg = 'Failed to save image.'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.im_save_list = []
def saveImg(self, save_path: str, img: QImage, pagename_in_proj: str = '', save_params: dict = None, keep_alpha=False):
self.im_save_list.append((save_path, img, pagename_in_proj, save_params, keep_alpha))
if self.job is None:
self.job = self._save_img
self.start()
def _save_img(self):
while True:
if len(self.im_save_list) == 0:
break
save_path, img, pagename_in_proj, save_params, keep_alpha = self.im_save_list[0]
if save_params is None:
save_params = {}
if isinstance(img, QImage) or isinstance(img, QPixmap):
img = pixmap2ndarray(img, keep_alpha=keep_alpha)
imwrite(save_path, img, **save_params)
self.img_writed.emit(pagename_in_proj)
self.im_save_list.pop(0)
def on_exec_failed(self):
if len(self.im_save_list) > 0:
self.im_save_list.pop(0)
if len(self.im_save_list) == 0:
self.job = None
else:
try:
self.job()
except Exception as e:
self.on_exec_failed()
create_error_dialog(e, self._thread_error_msg, self._thread_exception_type)
class ImgTransProjFileIOThread(ThreadBase):
fin_page = Signal()
fin_io = Signal()
_thread_exception_type = 'ImgTransProjFileIOThread'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.proj: ProjImgTrans = None
self.fin_counter = 0
self.num_pages = 0
self.fin_page.connect(self.on_fin_page)
self.progress_bar = ProgressMessageBox('task')
def on_fin_page(self):
self.fin_counter += 1
progress = int(self.fin_counter / self.num_pages * 100)
self.progress_bar.updateTaskProgress(progress)
if self.fin_counter == self.num_pages:
self.progress_bar.hide()
def on_exec_failed(self):
self.progress_bar.hide()
class ExportDocThread(ImgTransProjFileIOThread):
_thread_error_msg = 'Failed to export Doc'
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.progress_bar.setTaskName(self.tr('Export as doc...'))
def exportAsDoc(self, proj: ProjImgTrans):
doc_path = proj.doc_path()
if osp.exists(doc_path):
msg = QMessageBox()
msg.setText(self.tr('Overwrite ') + doc_path + '?')
msg.setStandardButtons(QMessageBox.StandardButton.Yes | QMessageBox.StandardButton.No)
ret = msg.exec_()
if ret == QMessageBox.StandardButton.No:
return
if self.job is None:
self.proj = proj
self.job = self._export_as_doc
self.start()
self.progress_bar.updateTaskProgress(0)
self.progress_bar.show()
def _export_as_doc(self):
if self.proj is None:
return
self.fin_counter = 0
self.num_pages = self.proj.num_pages
if self.num_pages > 0:
self.proj.dump_doc(fin_page_signal=self.fin_page)
self.proj = None
self.progress_bar.hide()
self.fin_io.emit()
class ImportDocThread(ImgTransProjFileIOThread):
_thread_error_msg = 'Failed to import Doc'
def __init__(self, parent, *args, **kwargs):
super().__init__(parent, *args, **kwargs)
self.progress_bar.setTaskName(self.tr('Import doc...'))
self.doc_path = None
def importDoc(self, proj: ProjImgTrans):
dialog = QFileDialog()
dialog.setDefaultSuffix('.docx')
url = QUrl(proj.directory)
doc_path = dialog.getOpenFileUrl(self.parent(), self.tr('Import *.docx'), directory=url, filter="Microsoft Word Documents (*.doc *.docx)")[0].toLocalFile()
if osp.exists(doc_path) and self.job is None:
self.proj = proj
self.job = self._import_doc
self.doc_path = doc_path
self.start()
self.progress_bar.updateTaskProgress(0)
self.progress_bar.show()
def _import_doc(self):
if self.proj is None:
return
self.fin_counter = 0
self.num_pages = self.proj.num_pages
self.proj.load_doc(self.doc_path, fin_page_signal=self.fin_page)
self.proj = None
self.progress_bar.hide()
self.fin_io.emit()