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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,181 @@ | ||
| import multiprocessing | ||
| from pathlib import Path | ||
| import fitz | ||
| from PySide6.QtWidgets import ( | ||
| QWidget, QHBoxLayout, QVBoxLayout, QPushButton, QLabel, | ||
| QComboBox, QFileDialog, QMessageBox | ||
| ) | ||
| from PySide6.QtCore import QThread, Signal | ||
| from module_ocr import process_documents | ||
|
|
||
| def check_cuda_availability(): | ||
| try: | ||
| import torch | ||
| return torch.cuda.is_available() | ||
| except ImportError: | ||
| return False | ||
|
|
||
| def get_pdf_page_count(pdf_path): | ||
| try: | ||
| with fitz.open(pdf_path) as doc: | ||
| return doc.page_count | ||
| except Exception as e: | ||
| print(f"Error reading PDF: {e}") | ||
| return 0 | ||
|
|
||
| def run_ocr_process(pdf_path, backend, model_path): | ||
| try: | ||
| if backend == "tesseract": | ||
| model_path = None | ||
| process_documents( | ||
| pdf_paths=Path(pdf_path), | ||
| backend=backend, | ||
| model_path=model_path, | ||
| ) | ||
| return True, None | ||
| except Exception as e: | ||
| return False, str(e) | ||
|
|
||
| class OcrWorkerThread(QThread): | ||
| finished_signal = Signal(bool, str) | ||
|
|
||
| def __init__(self, pdf_path, backend, model_path, parent=None): | ||
| super().__init__(parent) | ||
| self.pdf_path = pdf_path | ||
| self.backend = backend | ||
| self.model_path = "ctranslate2-4you/GOT-OCR2_0-Customized" | ||
|
|
||
| def run(self): | ||
| result = run_ocr_process(self.pdf_path, self.backend, self.model_path) | ||
| self.finished_signal.emit(*result) | ||
|
|
||
| class OCRToolSettingsTab(QWidget): | ||
| ENGINE_MAPPING = { | ||
| "Tesseract": "tesseract", | ||
| "GOT_OCR": "got" | ||
| } | ||
|
|
||
| def __init__(self): | ||
| super().__init__() | ||
| self.selected_pdf_file = None | ||
| self.model_path = None | ||
| self.create_layout() | ||
| self.setButtons(True) | ||
| self.worker_thread = None | ||
|
|
||
| def create_layout(self): | ||
| main_layout = QVBoxLayout() | ||
|
|
||
| engine_selection_hbox = QHBoxLayout() | ||
|
|
||
| engine_label = QLabel("OCR Engine") | ||
| engine_selection_hbox.addWidget(engine_label) | ||
|
|
||
| self.engine_combo = QComboBox() | ||
| self.engine_combo.addItems(["Tesseract", "GOT_OCR"]) | ||
| self.engine_combo.setCurrentText("Tesseract") | ||
| engine_selection_hbox.addWidget(self.engine_combo) | ||
|
|
||
| self.select_pdf_button = QPushButton("Choose PDF") | ||
| self.select_pdf_button.clicked.connect(self.select_pdf_file) | ||
| engine_selection_hbox.addWidget(self.select_pdf_button) | ||
|
|
||
| self.process_button = QPushButton("Process") | ||
| self.process_button.clicked.connect(self.start_ocr_process) | ||
| engine_selection_hbox.addWidget(self.process_button) | ||
|
|
||
| engine_selection_hbox.setStretchFactor(engine_label, 1) | ||
| engine_selection_hbox.setStretchFactor(self.engine_combo, 2) | ||
| engine_selection_hbox.setStretchFactor(self.select_pdf_button, 1) | ||
| engine_selection_hbox.setStretchFactor(self.process_button, 1) | ||
|
|
||
| main_layout.addLayout(engine_selection_hbox) | ||
|
|
||
| self.file_path_label = QLabel("No PDF file selected") | ||
| main_layout.addWidget(self.file_path_label) | ||
|
|
||
| self.status_label = QLabel("") | ||
| self.status_label.setStyleSheet("color: gray;") | ||
| main_layout.addWidget(self.status_label) | ||
|
|
||
| self.setLayout(main_layout) | ||
|
|
||
| def setButtons(self, enabled): | ||
| self.select_pdf_button.setEnabled(enabled) | ||
| self.process_button.setEnabled(enabled) | ||
| self.engine_combo.setEnabled(enabled) | ||
| if enabled: | ||
| self.status_label.setText("") | ||
|
|
||
| def select_pdf_file(self): | ||
| current_dir = Path.cwd() | ||
| file_name, _ = QFileDialog.getOpenFileName( | ||
| self, | ||
| "Select PDF File", | ||
| str(current_dir), | ||
| "PDF Files (*.pdf)" | ||
| ) | ||
| if file_name: | ||
| file_path = Path(file_name) | ||
| short_path = f"...{file_path.parent.name}/{file_path.name}" | ||
| self.file_path_label.setText(short_path) | ||
| self.file_path_label.setToolTip(str(file_path.absolute())) | ||
| self.selected_pdf_file = file_name | ||
| self.status_label.setText("") | ||
|
|
||
| def show_error_message(self, message): | ||
| self.status_label.setStyleSheet("color: red;") | ||
| self.status_label.setText("Error: OCR process failed") | ||
| QMessageBox.critical(self, "Error", f"OCR process failed:\n{message}") | ||
|
|
||
| def show_success_message(self): | ||
| self.status_label.setStyleSheet("color: #4CAF50;") | ||
| self.status_label.setText("Success! A .txt file has been saved in the same directory as the original .pdf.") | ||
| QMessageBox.information(self, "Success!", "A .txt file has been saved in the same directory as the original .pdf.") | ||
|
|
||
| def start_ocr_process(self): | ||
| if not self.selected_pdf_file: | ||
| QMessageBox.warning(self, "Warning", "Please select a PDF file first.") | ||
| return | ||
|
|
||
| selected_engine = self.engine_combo.currentText() | ||
| backend = self.ENGINE_MAPPING[selected_engine] | ||
|
|
||
| if backend == "got": | ||
| if not check_cuda_availability(): | ||
| QMessageBox.warning( | ||
| self, | ||
| "CUDA Not Available", | ||
| "GOT_OCR requires PyTorch with CUDA support. Please use Tesseract instead." | ||
| ) | ||
| return | ||
|
|
||
| page_count = get_pdf_page_count(self.selected_pdf_file) | ||
| if page_count > 100: | ||
| reply = QMessageBox.question( | ||
| self, | ||
| "Large PDF Warning", | ||
| f"The selected PDF has {page_count} pages. " | ||
| "Are you sure that you want to proceed with the GOT_OCR backend? " | ||
| "This backend processes a single page in approximately 10-15 seconds.", | ||
| QMessageBox.StandardButton.Ok | QMessageBox.StandardButton.Cancel | ||
| ) | ||
| if reply == QMessageBox.StandardButton.Cancel: | ||
| return | ||
|
|
||
| self.status_label.setStyleSheet("color: #0074D9;") | ||
| self.status_label.setText(f"Processing with {selected_engine}...") | ||
| print(f"Starting OCR process for {self.selected_pdf_file}") | ||
|
|
||
| self.setButtons(False) | ||
|
|
||
| self.worker_thread = OcrWorkerThread(self.selected_pdf_file, backend, self.model_path) | ||
| self.worker_thread.finished_signal.connect(self.ocr_finished) | ||
| self.worker_thread.start() | ||
|
|
||
| def ocr_finished(self, success, message): | ||
| self.setButtons(True) | ||
| if success: | ||
| self.show_success_message() | ||
| else: | ||
| self.show_error_message(message) |
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