From b115aef19bca42965f03b7abb5ad8168da25de4a Mon Sep 17 00:00:00 2001
From: Manuel Riel <manu@snapdragon.cc>
Date: Mon, 4 Mar 2019 22:49:20 +0800
Subject: [PATCH] Reduce memory usage by removing main window from memory when
 closed. Fixes #207 (#208)

---
 src/vorta/application.py       | 7 +++----
 src/vorta/views/main_window.py | 1 +
 tests/conftest.py              | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/vorta/application.py b/src/vorta/application.py
index ec4d2144..72aa14f8 100644
--- a/src/vorta/application.py
+++ b/src/vorta/application.py
@@ -50,9 +50,8 @@ def __init__(self, args_raw, single_app=False):
         self.setQuitOnLastWindowClosed(False)
         self.scheduler = VortaScheduler(self)
 
-        # Prepare tray and main window
+        # Prepare system tray icon
         self.tray = TrayMenu(self)
-        self.main_window = MainWindow(self)
 
         # Apply dark stylesheet
         if SettingsModel.get(key='use_dark_theme').value:
@@ -60,7 +59,7 @@ def __init__(self, args_raw, single_app=False):
 
         args = parse_args()
         if hasattr(args, 'foreground') and args.foreground:
-            self.main_window.show()
+            self.open_main_window_action()
 
         self.backup_started_event.connect(self.backup_started_event_response)
         self.backup_finished_event.connect(self.backup_finished_event_response)
@@ -79,6 +78,7 @@ def create_backup_action(self, profile_id=None):
             self.backup_log_event.emit(translate('messages', msg['message']))
 
     def open_main_window_action(self):
+        self.main_window = MainWindow(self)
         self.main_window.show()
         self.main_window.raise_()
 
@@ -93,7 +93,6 @@ def backup_started_event_response(self):
 
     def backup_finished_event_response(self):
         set_tray_icon(self.tray)
-        self.main_window.scheduleTab._draw_next_scheduled_backup()
 
     def backup_cancelled_event_response(self):
         set_tray_icon(self.tray)
diff --git a/src/vorta/views/main_window.py b/src/vorta/views/main_window.py
index 9be583e4..b9f26402 100644
--- a/src/vorta/views/main_window.py
+++ b/src/vorta/views/main_window.py
@@ -23,6 +23,7 @@ def __init__(self, parent=None):
         super().__init__()
         self.setupUi(self)
         self.setWindowTitle('Vorta for Borg Backup')
+        self.setAttribute(QtCore.Qt.WA_DeleteOnClose, True)
         self.app = parent
         self.current_profile = BackupProfileModel.select().order_by('id').first()
         self.setWindowFlags(QtCore.Qt.WindowCloseButtonHint | QtCore.Qt.WindowMinimizeButtonHint)
diff --git a/tests/conftest.py b/tests/conftest.py
index 58432b21..2e748219 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -32,7 +32,7 @@ def app(tmpdir, qtbot):
     source_dir.save()
 
     app = VortaApp([])
-    app.main_window.show()
+    app.open_main_window_action()
     qtbot.addWidget(app.main_window)
     return app