LiveTranslate / dialogs.py
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init
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import logging
import re
import sys
import threading
from PyQt6.QtCore import Qt, QTimer, pyqtSignal
from PyQt6.QtGui import QFont
from PyQt6.QtWidgets import (
QCheckBox,
QComboBox,
QDialog,
QDialogButtonBox,
QFormLayout,
QGroupBox,
QLabel,
QLineEdit,
QPushButton,
QTextEdit,
QVBoxLayout,
)
from model_manager import download_asr, download_silero
from i18n import t
log = logging.getLogger("LiveTrans.Dialogs")
SETTINGS_FILE = None # set by control_panel on import
_save_settings = None # set by control_panel on import
class _LogCapture(logging.Handler):
"""Captures log output and emits via callback."""
def __init__(self, callback):
super().__init__()
self._callback = callback
self.setFormatter(logging.Formatter("%(message)s"))
def emit(self, record):
try:
self._callback(self.format(record))
except Exception:
pass
_ANSI_RE = re.compile(r"\x1b\[[0-9;]*[A-Za-z]")
class _StderrCapture:
"""Captures stderr (tqdm) and forwards cleaned lines via callback."""
def __init__(self, callback, original):
self._cb = callback
self._orig = original
def write(self, text):
if self._orig:
self._orig.write(text)
if not text:
return
cleaned = _ANSI_RE.sub("", text)
for line in cleaned.splitlines():
line = line.strip()
if line:
self._cb(line)
def flush(self):
if self._orig:
self._orig.flush()
def isatty(self):
return False
class _ModelLoadDialog(QDialog):
"""Modal dialog shown during model download/loading with live log."""
_log_signal = pyqtSignal(str)
def __init__(self, message, parent=None):
super().__init__(parent)
self.setWindowTitle("LiveTrans")
self.setMinimumWidth(500)
self.setMinimumHeight(300)
self.setModal(True)
self.setWindowFlags(
Qt.WindowType.Dialog
| Qt.WindowType.WindowTitleHint
| Qt.WindowType.CustomizeWindowHint
| Qt.WindowType.MSWindowsFixedSizeDialogHint
)
layout = QVBoxLayout(self)
self._label = QLabel(message)
self._label.setWordWrap(True)
layout.addWidget(self._label)
self._log_view = QTextEdit()
self._log_view.setReadOnly(True)
self._log_view.setFont(QFont("Consolas", 8))
self._log_view.setStyleSheet(
"background: #1e1e2e; color: #cdd6f4; border: 1px solid #444;"
)
layout.addWidget(self._log_view)
self._log_signal.connect(self._append_log)
self._log_handler = _LogCapture(self._log_signal.emit)
self._log_handler.setLevel(logging.INFO)
logging.getLogger().addHandler(self._log_handler)
def _append_log(self, text):
self._log_view.append(text)
self._log_view.verticalScrollBar().setValue(
self._log_view.verticalScrollBar().maximum()
)
def done(self, result):
logging.getLogger().removeHandler(self._log_handler)
super().done(result)
class SetupWizardDialog(QDialog):
"""First-launch wizard: choose hub, download models."""
_log_signal = pyqtSignal(str)
def __init__(self, parent=None):
super().__init__(parent)
self.setWindowTitle(t("window_setup"))
self.setMinimumWidth(520)
self.setMinimumHeight(400)
self.setWindowFlags(
Qt.WindowType.Dialog
| Qt.WindowType.WindowTitleHint
| Qt.WindowType.CustomizeWindowHint
| Qt.WindowType.MSWindowsFixedSizeDialogHint
)
layout = QVBoxLayout(self)
hub_group = QGroupBox(t("group_download_source"))
hub_layout = QVBoxLayout(hub_group)
self._hub_combo = QComboBox()
self._hub_combo.addItems(
[
t("hub_modelscope_full"),
t("hub_huggingface_full"),
]
)
hub_layout.addWidget(self._hub_combo)
layout.addWidget(hub_group)
self._download_btn = QPushButton(t("btn_start_download"))
self._download_btn.clicked.connect(self._start_download)
layout.addWidget(self._download_btn)
self._log_view = QTextEdit()
self._log_view.setReadOnly(True)
self._log_view.setFont(QFont("Consolas", 8))
self._log_view.setStyleSheet(
"background: #1e1e2e; color: #cdd6f4; border: 1px solid #444;"
)
self._log_view.hide()
layout.addWidget(self._log_view)
self._error = None
self._log_signal.connect(self._append_log)
self._log_handler = _LogCapture(self._log_signal.emit)
def _append_log(self, text):
self._log_view.append(text)
self._log_view.verticalScrollBar().setValue(
self._log_view.verticalScrollBar().maximum()
)
def _start_download(self):
self._download_btn.setEnabled(False)
self._hub_combo.setEnabled(False)
self._log_view.show()
hub = "ms" if self._hub_combo.currentIndex() == 0 else "hf"
logging.getLogger().addHandler(self._log_handler)
self._orig_stderr = sys.stderr
sys.stderr = _StderrCapture(self._log_signal.emit, self._orig_stderr)
self._error = None
self._download_thread = threading.Thread(
target=self._download_worker, args=(hub,), daemon=True
)
self._download_thread.start()
self._poll_timer = QTimer()
self._poll_timer.setInterval(200)
self._poll_timer.timeout.connect(self._check_done)
self._poll_timer.start()
def _download_worker(self, hub):
try:
download_silero()
download_asr("sensevoice", hub=hub)
except Exception as e:
self._error = str(e)
log.error(f"Download failed: {e}", exc_info=True)
def _check_done(self):
if self._download_thread.is_alive():
return
self._poll_timer.stop()
sys.stderr = self._orig_stderr
logging.getLogger().removeHandler(self._log_handler)
if self._error:
self._append_log(f"\n{t('download_failed').format(error=self._error)}")
self._download_btn.setEnabled(True)
self._download_btn.setText(t("btn_retry"))
self._hub_combo.setEnabled(True)
return
self._append_log(f"\n{t('download_complete')}")
hub = "ms" if self._hub_combo.currentIndex() == 0 else "hf"
from control_panel import _save_settings
settings = {
"hub": hub,
"asr_engine": "sensevoice",
"vad_mode": "silero",
"vad_threshold": 0.3,
"energy_threshold": 0.02,
"min_speech_duration": 1.0,
"max_speech_duration": 8.0,
"silence_mode": "auto",
"silence_duration": 0.8,
"asr_language": "auto",
}
_save_settings(settings)
QTimer.singleShot(500, self.accept)
class ModelDownloadDialog(QDialog):
"""Download missing models (non-first-launch) with live log."""
_log_signal = pyqtSignal(str)
def __init__(self, missing_models, hub="ms", parent=None):
super().__init__(parent)
self.setWindowTitle(t("window_download"))
self.setMinimumWidth(520)
self.setMinimumHeight(300)
self.setWindowFlags(
Qt.WindowType.Dialog
| Qt.WindowType.WindowTitleHint
| Qt.WindowType.CustomizeWindowHint
| Qt.WindowType.MSWindowsFixedSizeDialogHint
)
layout = QVBoxLayout(self)
names = ", ".join(m["name"] for m in missing_models)
info = QLabel(t("downloading_models").format(names=names))
info.setWordWrap(True)
layout.addWidget(info)
self._log_view = QTextEdit()
self._log_view.setReadOnly(True)
self._log_view.setFont(QFont("Consolas", 8))
self._log_view.setStyleSheet(
"background: #1e1e2e; color: #cdd6f4; border: 1px solid #444;"
)
layout.addWidget(self._log_view)
self._close_btn = QPushButton(t("btn_close"))
self._close_btn.clicked.connect(self.reject)
self._close_btn.hide()
layout.addWidget(self._close_btn)
self._missing = missing_models
self._hub = hub
self._error = None
self._log_signal.connect(self._append_log)
self._log_handler = _LogCapture(self._log_signal.emit)
QTimer.singleShot(100, self._start_download)
def _append_log(self, text):
self._log_view.append(text)
self._log_view.verticalScrollBar().setValue(
self._log_view.verticalScrollBar().maximum()
)
def _start_download(self):
logging.getLogger().addHandler(self._log_handler)
self._orig_stderr = sys.stderr
sys.stderr = _StderrCapture(self._log_signal.emit, self._orig_stderr)
self._download_thread = threading.Thread(
target=self._download_worker, daemon=True
)
self._download_thread.start()
self._poll_timer = QTimer()
self._poll_timer.setInterval(200)
self._poll_timer.timeout.connect(self._check_done)
self._poll_timer.start()
def _download_worker(self):
try:
for m in self._missing:
if m["type"] == "silero-vad":
download_silero()
elif m["type"] in ("sensevoice", "funasr-nano", "funasr-mlt-nano"):
download_asr(m["type"], hub=self._hub)
elif m["type"].startswith("whisper-"):
size = m["type"].replace("whisper-", "")
download_asr("whisper", model_size=size, hub=self._hub)
except Exception as e:
self._error = str(e)
log.error(f"Download failed: {e}", exc_info=True)
def _check_done(self):
if self._download_thread.is_alive():
return
self._poll_timer.stop()
sys.stderr = self._orig_stderr
logging.getLogger().removeHandler(self._log_handler)
if self._error:
self._append_log(f"\n{t('download_failed').format(error=self._error)}")
self._close_btn.show()
return
self._append_log(f"\n{t('download_complete')}")
QTimer.singleShot(500, self.accept)
class ModelEditDialog(QDialog):
"""Dialog for adding/editing a model configuration."""
def __init__(self, parent=None, model_data=None):
super().__init__(parent)
self.setWindowTitle(t("dialog_edit_model") if model_data else t("dialog_add_model"))
self.setMinimumWidth(450)
layout = QFormLayout(self)
self._name = QLineEdit()
self._api_base = QLineEdit()
self._api_key = QLineEdit()
self._api_key.setEchoMode(QLineEdit.EchoMode.Password)
self._model = QLineEdit()
self._proxy_mode = QComboBox()
self._proxy_mode.addItems([t("proxy_none"), t("proxy_system"), t("proxy_custom")])
self._proxy_mode.currentIndexChanged.connect(self._on_proxy_mode_changed)
self._proxy_url = QLineEdit()
self._proxy_url.setPlaceholderText("http://127.0.0.1:7890")
self._proxy_url.setEnabled(False)
self._no_system_role = QCheckBox(t("no_system_role"))
layout.addRow(t("label_display_name"), self._name)
layout.addRow(t("label_api_base"), self._api_base)
layout.addRow(t("label_api_key"), self._api_key)
layout.addRow(t("label_model"), self._model)
layout.addRow(t("label_proxy"), self._proxy_mode)
layout.addRow(t("label_proxy_url"), self._proxy_url)
layout.addRow("", self._no_system_role)
if model_data:
self._name.setText(model_data.get("name", ""))
self._api_base.setText(model_data.get("api_base", ""))
self._api_key.setText(model_data.get("api_key", ""))
self._model.setText(model_data.get("model", ""))
proxy = model_data.get("proxy", "none")
if proxy == "system":
self._proxy_mode.setCurrentIndex(1)
elif proxy not in ("none", "system") and proxy:
self._proxy_mode.setCurrentIndex(2)
self._proxy_url.setText(proxy)
else:
self._proxy_mode.setCurrentIndex(0)
self._no_system_role.setChecked(model_data.get("no_system_role", False))
buttons = QDialogButtonBox(
QDialogButtonBox.StandardButton.Ok | QDialogButtonBox.StandardButton.Cancel
)
buttons.accepted.connect(self.accept)
buttons.rejected.connect(self.reject)
layout.addRow(buttons)
def _on_proxy_mode_changed(self, index):
self._proxy_url.setEnabled(index == 2)
def get_data(self) -> dict:
proxy_idx = self._proxy_mode.currentIndex()
if proxy_idx == 1:
proxy = "system"
elif proxy_idx == 2:
proxy = self._proxy_url.text().strip() or "none"
else:
proxy = "none"
result = {
"name": self._name.text().strip(),
"api_base": self._api_base.text().strip(),
"api_key": self._api_key.text().strip(),
"model": self._model.text().strip(),
"proxy": proxy,
}
if self._no_system_role.isChecked():
result["no_system_role"] = True
return result