更新

app/src/doctor_workstation/ui/widgets.py

@@ -10,13 +10,12 @@ from datetime import date, datetime
 from typing import Any
 
 from PySide6.QtCore import QObject, QRunnable, Qt, QThreadPool, QTimer, Signal, Slot
-from PySide6.QtGui import QResizeEvent
+from PySide6.QtGui import QColor, QPainter, QPaintEvent, QResizeEvent
 from PySide6.QtWidgets import (
     QAbstractItemView,
     QFrame,
     QHBoxLayout,
     QLabel,
-    QProgressBar,
     QPushButton,
     QSizePolicy,
     QTableWidget,
@@ -543,30 +542,74 @@ def show_toast(parent: QWidget, text: str, kind: str = "info", duration: int = 2
     toast.show_message(text, kind, duration)
 
 
+class _BusyTrack(QWidget):
+    """Indeterminate bar painted in-process, without Windows QProgressBar HWNDs.
+
+    ``QProgressBar.setRange(0, 0)`` uses the native Vista/Win11 animation, which
+    creates extra untitled windows titled with the application name.
+    """
+
+    def __init__(self, parent: QWidget) -> None:
+        super().__init__(parent)
+        self.setObjectName("BusyOverlayProgress")
+        self.setFixedSize(140, 6)
+        self.setAttribute(Qt.WidgetAttribute.WA_StyledBackground, True)
+        self._phase = 0.0
+        self._timer = QTimer(self)
+        self._timer.setInterval(32)
+        self._timer.timeout.connect(self._tick)
+
+    def showEvent(self, event: Any) -> None:
+        self._timer.start()
+        super().showEvent(event)
+
+    def hideEvent(self, event: Any) -> None:
+        self._timer.stop()
+        super().hideEvent(event)
+
+    def _tick(self) -> None:
+        self._phase = (self._phase + 0.035) % 1.0
+        self.update()
+
+    def paintEvent(self, event: QPaintEvent) -> None:  # noqa: N802 - Qt API
+        del event
+        painter = QPainter(self)
+        painter.setRenderHint(QPainter.RenderHint.Antialiasing)
+        painter.setPen(Qt.PenStyle.NoPen)
+        rect = self.rect()
+        painter.setBrush(QColor("#D8DEEA"))
+        painter.drawRoundedRect(rect, 3, 3)
+        chunk_width = max(36, int(rect.width() * 0.32))
+        span = rect.width() + chunk_width
+        x = int(self._phase * span) - chunk_width
+        painter.setBrush(QColor("#4F63D9"))
+        painter.drawRoundedRect(x, 0, chunk_width, rect.height(), 3, 3)
+
+
 class BusyOverlay(QFrame):
     """Non-blocking visual guard for a card or page while a worker is active."""
 
     def __init__(self, parent: QWidget, text: str = "正在加载…") -> None:
         super().__init__(parent)
         self.setObjectName("BusyOverlay")
+        self.setAttribute(Qt.WidgetAttribute.WA_StyledBackground, True)
         layout = QVBoxLayout(self)
         layout.setAlignment(Qt.AlignmentFlag.AlignCenter)
         layout.setSpacing(10)
-        self.label = QLabel(text)
+        self.label = QLabel(text, self)
         self.label.setProperty("role", "muted")
-        progress = QProgressBar()
-        progress.setObjectName("BusyOverlayProgress")
-        progress.setRange(0, 0)
-        progress.setFixedWidth(140)
+        self.progress = _BusyTrack(self)
         layout.addWidget(self.label, 0, Qt.AlignmentFlag.AlignCenter)
-        layout.addWidget(progress, 0, Qt.AlignmentFlag.AlignCenter)
+        layout.addWidget(self.progress, 0, Qt.AlignmentFlag.AlignCenter)
         self.hide()
 
     def set_message(self, text: str) -> None:
         self.label.setText(text)
 
     def showEvent(self, event: Any) -> None:
-        self.setGeometry(self.parentWidget().rect())
+        parent = self.parentWidget()
+        if parent is not None:
+            self.setGeometry(parent.rect())
         self.raise_()
         super().showEvent(event)