new back button

screens/settings.py

@@ -9,7 +9,7 @@ from PySide6.QtWidgets import (
     QStackedWidget,
     QApplication,
 )
-from PySide6.QtCore import Qt
+from PySide6.QtCore import Qt, Signal
 from PySide6.QtGui import QFont
 from PySide6.QtWidgets import QScroller
 from screens.bluetooth import BluetoothScreen
@@ -55,6 +55,8 @@ class SettingsRow(QPushButton):
 
 
 class SettingsScreen(QWidget):
+    view_changed = Signal(str, bool)
+
     def __init__(self):
         super().__init__()
         root = QVBoxLayout(self)
@@ -69,9 +71,9 @@ class SettingsScreen(QWidget):
         list_layout.setContentsMargins(0, 0, 0, 0)
         list_layout.setSpacing(12)
 
-        list_title = QLabel("Настройки")
-        list_title.setFont(QFont("", 24, 700))
-        list_layout.addWidget(list_title)
+        # list_title = QLabel("Настройки")
+        # list_title.setFont(QFont("", 24, 700))
+        # list_layout.addWidget(list_title)
 
         scroll = QScrollArea()
         scroll.setWidgetResizable(True)
@@ -134,6 +136,7 @@ class SettingsScreen(QWidget):
             dev_row.clicked.connect(self._show_dev)
         if bt_row is not None:
             bt_row.clicked.connect(self._show_bluetooth)
+        self._show_list()
 
     def _build_dev_screen(self) -> QWidget:
         screen = QWidget()
@@ -190,12 +193,18 @@ class SettingsScreen(QWidget):
 
     def _show_dev(self):
         self.stack.setCurrentWidget(self._dev_screen)
+        self.view_changed.emit("Параметры разработчика", True)
 
     def _show_list(self):
         self.stack.setCurrentWidget(self._list_screen)
+        self.view_changed.emit("Настройки", False)
 
     def _show_bluetooth(self):
         self.stack.setCurrentWidget(self._bt_screen)
+        self.view_changed.emit("Bluetooth", True)
+
+    def show_list(self):
+        self._show_list()
 
     def _exit_app(self):
         app = QApplication.instance()

themes/day.py

@@ -12,6 +12,15 @@ QWidget { background: #F4F6F8; color: #111827; }
     font-weight: 700;
 }
 #MenuButton:hover, #SettingsButton:hover { background: #F9FAFB; }
+#TopBackBtn {
+    background: #FFFFFF;
+    border-radius: 12px;
+    border: 1px solid #E5E7EB;
+    padding: 8px 14px;
+    font-size: 16px;
+    font-weight: 600;
+}
+#TopBackBtn:hover { background: #F9FAFB; }
 QToolButton::menu-indicator { image: none; }
 QMenu {
     background: #FFFFFF;

themes/night.py

@@ -11,6 +11,14 @@ QWidget { background: #0B0E11; color: #E6EAF0; }
     font-weight: 700;
 }
 #MenuButton:hover, #SettingsButton:hover { background: #1B2330; }
+#TopBackBtn {
+    background: #141A22;
+    border-radius: 12px;
+    padding: 8px 14px;
+    font-size: 16px;
+    font-weight: 600;
+}
+#TopBackBtn:hover { background: #1B2330; }
 QToolButton::menu-indicator { image: none; }
 QMenu {
     background: #0F1318;

ui/main_window_new.py

@@ -54,6 +54,11 @@ class MainWindowNew(QMainWindow):
         self.act_car = menu.addAction("Car")
         self.act_maps = menu.addAction("Maps")
 
+        self.btn_back = QPushButton("Назад")
+        self.btn_back.setObjectName("TopBackBtn")
+        self.btn_back.setMinimumSize(120, 48)
+        self.btn_back.setVisible(False)
+
         self.lbl_source = QLabel("Media")
         self.lbl_source.setFont(QFont("", 20, 600))
 
@@ -70,6 +75,7 @@ class MainWindowNew(QMainWindow):
         self.btn_settings.clicked.connect(self.toggle_settings)
 
         top.addWidget(self.menu_button)
+        top.addWidget(self.btn_back)
         top.addWidget(self.lbl_source)
         top.addStretch(1)
         top.addWidget(self.lbl_bt)
@@ -81,15 +87,20 @@ class MainWindowNew(QMainWindow):
         self.stack.addWidget(self.media_screen)  # 0
         self.stack.addWidget(StubScreen("Car"))  # 1
         self.stack.addWidget(StubScreen("Maps")) # 2
-        self.stack.addWidget(SettingsScreen())   # 3
+        self.settings_screen = SettingsScreen()
+        self.stack.addWidget(self.settings_screen)   # 3
 
         self.settings_idx = 3
         self.last_non_settings_idx = 0
+        self.settings_title = "Настройки"
+        self.settings_show_back = False
 
         self.act_media.triggered.connect(lambda: self.go(0))
         self.act_car.triggered.connect(lambda: self.go(1))
         self.act_maps.triggered.connect(lambda: self.go(2))
         self.media_screen.source_changed.connect(self.lbl_bt.setText)
+        self.settings_screen.view_changed.connect(self._on_settings_view_changed)
+        self.btn_back.clicked.connect(self._settings_back)
 
         outer.addWidget(self.topbar)
         outer.addWidget(self.stack, 1)
@@ -110,11 +121,12 @@ class MainWindowNew(QMainWindow):
     def _sync_topbar(self, idx: int):
         is_settings = idx == self.settings_idx
         self.menu_button.setVisible(not is_settings)
+        self.btn_back.setVisible(is_settings and self.settings_show_back)
         self.lbl_bt.setVisible(not is_settings)
         self.lbl_time.setVisible(not is_settings)
         self.btn_settings.setText("✕" if is_settings else "⚙")
         if is_settings:
-            self.lbl_source.setText("Настройки")
+            self.lbl_source.setText(self.settings_title)
 
     def toggle_settings(self):
         if self.stack.currentIndex() == self.settings_idx:
@@ -137,3 +149,12 @@ class MainWindowNew(QMainWindow):
         elif idx == 2:
             self.lbl_source.setText("Maps")
         self._sync_topbar(idx)
+
+    def _on_settings_view_changed(self, title: str, show_back: bool):
+        self.settings_title = title
+        self.settings_show_back = show_back
+        if self.stack.currentIndex() == self.settings_idx:
+            self._sync_topbar(self.settings_idx)
+
+    def _settings_back(self):
+        self.settings_screen.show_list()