Move to QSettings for database credentials.

fixes: #1

lib/utils.py

@@ -1,6 +1,6 @@
 from typing import NoReturn, cast
 
-from PySide6.QtCore import QCoreApplication, QObject, QRect, Signal
+from PySide6.QtCore import QByteArray, QCoreApplication, QObject, QRect, QSettings, Signal
 from PySide6.QtGui import QColor, QFont
 from PySide6.QtSql import QSqlQuery
 from PySide6.QtWidgets import QStyleOptionViewItem, QWidget
@@ -28,3 +28,24 @@ class QStyleOptionViewItemInit(QStyleOptionViewItem):
     widget: QWidget
     font: QFont
     text: str
+
+def openSettings(group:str|None = None) -> QSettings:
+    settings = QSettings("Troglodite Services", "SCOTUS Watch")
+    if group is not None:
+        settings.beginGroup(group)
+    return settings
+
+def readGeometry(widget:QWidget) -> None:
+    settings = openSettings(widget.objectName())
+    geometry = settings.value('geometry', QByteArray())
+    assert isinstance(geometry, QByteArray)
+    if not geometry.isEmpty():
+        widget.restoreGeometry(geometry)
+    settings.endGroup()
+    return
+
+def writeGeometry(widget: QWidget) -> None:
+    settings = openSettings(widget.objectName())
+    settings.setValue('geometry', widget.saveGeometry())
+    settings.endGroup()
+    return