refactor(update-page): cache chevron pixmaps and fonts, drop dead deleteLater, fix thin title font

Author: gmmcosta15

BlocksScreen/lib/panels/widgets/updatePage.py

@@ -50,6 +50,7 @@ def __init__(self) -> None:
         self._statuses: dict[str, ComponentStatus] = {}
         self._chevron_btn: IconButton | None = None
         self._details_widget: QtWidgets.QWidget | None = None
+        self._font_cache: dict[int, QtGui.QFont] = {}
         self.update_all_btn.clicked.connect(self.on_update_all_clicked)
         self.update_back_btn.clicked.connect(self._request_status_debounced)
         self._status_debounce: QtCore.QTimer = QtCore.QTimer(self)
@@ -62,9 +63,6 @@ def __init__(self) -> None:
         self._post_update_status_pending: bool = False
         self.show_loading(True)
 
-    def deleteLater(self) -> None:
-        return super().deleteLater()
-
     def _request_status_debounced(self) -> None:
         self._status_debounce.start(500)
 
@@ -96,7 +94,9 @@ def _make_white_label(
         ),
     ) -> QtWidgets.QLabel:
         label = QtWidgets.QLabel(text, self)
-        label.setFont(QtGui.QFont(self._font_family, size))
+        if size not in self._font_cache:
+            self._font_cache[size] = QtGui.QFont(self._font_family, size)
+        label.setFont(self._font_cache[size])
         label.setStyleSheet("color: #FFFFFF;")
         label.setAlignment(align)
         return label
@@ -138,9 +138,7 @@ def _make_summary_row(
         self._chevron_btn = IconButton(card)
         self._chevron_btn.setFixedSize(50, 50)
         self._chevron_btn.setFlat(True)
-        self._chevron_btn.setPixmap(
-            QtGui.QPixmap(":/arrow_icons/media/btn_icons/right_arrow.svg")
-        )
+        self._chevron_btn.setPixmap(self._chevron_right)
         self._chevron_btn.clicked.connect(self._toggle_details)
         row.addWidget(self._chevron_btn)
         return card
@@ -226,13 +224,9 @@ def _toggle_details(self) -> None:
             return
         visible = not self._details_widget.isVisible()
         self._details_widget.setVisible(visible)
-        pixmap = QtGui.QPixmap(":/arrow_icons/media/btn_icons/right_arrow.svg")
-        if visible:
-            pixmap = pixmap.transformed(
-                QtGui.QTransform().rotate(90),
-                QtCore.Qt.TransformationMode.SmoothTransformation,
-            )
-        self._chevron_btn.setPixmap(pixmap)
+        self._chevron_btn.setPixmap(
+            self._chevron_down if visible else self._chevron_right
+        )
 
     def handle_status_ready(self, json_str: str) -> None:
         """Update component statuses from a JSON payload and refresh the list."""
@@ -284,17 +278,21 @@ def show_loading(self, loading: bool = False) -> None:
         self.disable_popups.emit(loading)
 
     def _setupUI(self) -> None:
-        font_id = QtGui.QFontDatabase.addApplicationFont(
+        bold_id = QtGui.QFontDatabase.addApplicationFont(
             ":/font/media/fonts for text/Momcake-Bold.ttf"
         )
-        self._font_family = QtGui.QFontDatabase.applicationFontFamilies(font_id)[0]
+        self._font_family = QtGui.QFontDatabase.applicationFontFamilies(bold_id)[0]
+        thin_id = QtGui.QFontDatabase.addApplicationFont(
+            ":/font/media/fonts for text/Momcake-Thin.ttf"
+        )
+        thin_families = QtGui.QFontDatabase.applicationFontFamilies(thin_id)
+        _title_family = thin_families[0] if thin_families else ""
 
         self.setObjectName("updatePage")
         self.setStyleSheet(
             "#updatePage { background-image: url(:/background/media/1st_background.png); }"
         )
-        self.setMinimumSize(QtCore.QSize(710, 400))
-        self.setMaximumSize(QtCore.QSize(720, 420))
+        self.setMinimumSize(QtCore.QSize(600, 360))
         sp = QtWidgets.QSizePolicy(
             QtWidgets.QSizePolicy.Policy.MinimumExpanding,
             QtWidgets.QSizePolicy.Policy.MinimumExpanding,
@@ -317,8 +315,9 @@ def _setupUI(self) -> None:
         header.addWidget(self.reload_btn)
 
         title = QtWidgets.QLabel("Update Manager", self)
-        title.setFont(QtGui.QFont(self._font_family, 28))
-        title.setMinimumHeight(60)
+        title.setFont(QtGui.QFont(_title_family, 24))
+        title.setMinimumSize(QtCore.QSize(100, 60))
+        title.setMaximumSize(QtCore.QSize(16777215, 60))
         title.setSizePolicy(
             QtWidgets.QSizePolicy(
                 QtWidgets.QSizePolicy.Policy.Expanding,
@@ -328,6 +327,7 @@ def _setupUI(self) -> None:
         pal = title.palette()
         pal.setColor(pal.ColorRole.WindowText, QtGui.QColor("#FFFFFF"))
         title.setPalette(pal)
+        title.setLayoutDirection(QtCore.Qt.LayoutDirection.RightToLeft)
         title.setAlignment(QtCore.Qt.AlignmentFlag.AlignCenter)
         header.addWidget(title)
 
@@ -378,3 +378,10 @@ def _setupUI(self) -> None:
         )
         content.addWidget(self.update_all_btn, 0, QtCore.Qt.AlignmentFlag.AlignCenter)
         self.update_all_btn.hide()
+
+        _arrow = QtGui.QPixmap(":/arrow_icons/media/btn_icons/arrow_right.svg")
+        self._chevron_right: QtGui.QPixmap = _arrow
+        self._chevron_down: QtGui.QPixmap = _arrow.transformed(
+            QtGui.QTransform().rotate(90),
+            QtCore.Qt.TransformationMode.SmoothTransformation,
+        )