From ef14fed3050d9d0cfca406e8f6e0daffad0cf586 Mon Sep 17 00:00:00 2001
From: Ilya Ashikhmin <ashikhmin.ilya@gmail.com>
Date: Thu, 2 Jul 2026 23:39:31 +0200
Subject: [PATCH] feat(app): persist window geometry and dock layout across
 sessions

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
---
 src/app/MainWindow.cpp | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/src/app/MainWindow.cpp b/src/app/MainWindow.cpp
index 41a4cda..186cccc 100644
--- a/src/app/MainWindow.cpp
+++ b/src/app/MainWindow.cpp
@@ -14,6 +14,7 @@
 #include <QLabel>
 #include <QMenuBar>
 #include <QMessageBox>
+#include <QSettings>
 #include <QStatusBar>
 #include <QToolBar>
 
@@ -68,6 +69,10 @@ MainWindow::MainWindow(QWidget* parent) : QMainWindow(parent)
 
     m_settings.load();
     applySettings(m_settings);
+
+    QSettings s;
+    restoreGeometry(s.value(QStringLiteral("window/geometry")).toByteArray());
+    restoreState(s.value(QStringLiteral("window/state")).toByteArray());
 }
 
 void MainWindow::buildActions()
@@ -254,10 +259,14 @@ void MainWindow::runSimulation(bool enabled)
 
 void MainWindow::closeEvent(QCloseEvent* event)
 {
-    if (maybeSave())
-        event->accept();
-    else
+    if (!maybeSave()) {
         event->ignore();
+        return;
+    }
+    QSettings s;
+    s.setValue(QStringLiteral("window/geometry"), saveGeometry());
+    s.setValue(QStringLiteral("window/state"), saveState());
+    event->accept();
 }
 
 }  // namespace diag