update icons on theme change

gotify_tray/gui/MainApplication.py

@@ -32,7 +32,7 @@ from .models import (
     MessagesModelItem,
     MessageItemDataRole,
 )
-from .widgets import ImagePopup, MainWindow, SettingsDialog, Tray
+from .widgets import ImagePopup, MainWindow, MessageWidget, SettingsDialog, Tray
 
 
 settings = Settings("gotify-tray")
@@ -340,11 +340,21 @@ class MainApplication(QtWidgets.QApplication):
         Cache().clear()
         self.refresh_applications()
 
+    def theme_change_requested_callback(self, theme: str):
+        # Set the theme, update the main window and message widget icons
+        set_theme(self, theme)
+        self.main_window.set_icons()
+        for r in range(self.messages_model.rowCount()):
+            message_widget: MessageWidget = self.main_window.listView_messages.indexWidget(
+                self.messages_model.index(r, 0)
+            )
+            message_widget.set_icons()
+
     def settings_callback(self):
         settings_dialog = SettingsDialog()
         settings_dialog.quit_requested.connect(self.quit)
         settings_dialog.theme_change_requested.connect(
-            lambda theme: set_theme(self, theme)
+            self.theme_change_requested_callback
         )
         accepted = settings_dialog.exec()
 

gotify_tray/gui/widgets/MessageWidget.py

@@ -61,8 +61,7 @@ class MessageWidget(QtWidgets.QWidget, Ui_Form):
         size_hint = self.message_item.sizeHint()
         self.message_item.setSizeHint(QtCore.QSize(size_hint.width(), self.height()))
 
-        self.pb_delete.setIcon(QtGui.QIcon(get_theme_file("trashcan.svg")))
+        self.set_icons()
-        self.pb_delete.setIconSize(QtCore.QSize(24, 24))
 
         self.link_callbacks()
 
@@ -88,6 +87,10 @@ class MessageWidget(QtWidgets.QWidget, Ui_Form):
         self.label_date.setFont(font_date)
         self.label_message.setFont(font_content)
 
+    def set_icons(self):
+        self.pb_delete.setIcon(QtGui.QIcon(get_theme_file("trashcan.svg")))
+        self.pb_delete.setIconSize(QtCore.QSize(24, 24))
+
     def link_hovered_callback(self, link: str):
         if not settings.value("ImagePopup/enabled", type=bool):
             return