Save and restore window geometry and state.

mainwindow.cpp

@@ -1,7 +1,10 @@
 #include "mainwindow.h"
 #include "./ui_mainwindow.h"
 
-#include "../../libs/GenericCore/genericcore.h"
+#include <QCloseEvent>
+
+#include "data/settingshandler.h"
+#include "genericcore.h"
 
 MainWindow::MainWindow(QWidget* parent)
     : QMainWindow(parent)
@@ -21,6 +24,12 @@ MainWindow::MainWindow(QWidget* parent)
 #else
   setWindowIcon(QIcon(iconString));
 #endif
+
+  /// TODO restore window geometry and state (& save it in closeEvent)
+  const QVariantMap settings = SettingsHandler::getSettings("GUI");
+  restoreGeometry(settings.value("geometry").toByteArray());
+  restoreState(settings.value("windowState").toByteArray());
+
   connect(m_core, &GenericCore::displayStatusMessage, this, &MainWindow::displayStatusMessage);
   connect(this, &MainWindow::displayStatusMessage, this, &MainWindow::showStatusMessage);
 }
@@ -39,3 +48,41 @@ void MainWindow::showStatusMessage(const QString text) {
   qInfo() << text;
   ui->statusbar->showMessage(text);
 }
+
+void MainWindow::closeEvent(QCloseEvent* event) {
+  if (isWindowModified()) {
+    QMessageBox msgBox;
+    msgBox.setWindowTitle(windowTitle() + " - Save dialog");
+    msgBox.setText("The document has been modified.");
+    msgBox.setInformativeText("Do you want to save your changes?");
+    msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
+    msgBox.setDefaultButton(QMessageBox::Save);
+    int ret = msgBox.exec();
+
+    switch (ret) {
+      case QMessageBox::Save:
+        // TODO m_core->saveItems();
+        event->accept();
+        break;
+      case QMessageBox::Discard:
+        event->accept();
+        break;
+      case QMessageBox::Cancel:
+        event->ignore();
+        break;
+      default:
+        /// should never be reached
+        qCritical() << "unexpected switch case in closeEvent:" << ret;
+        event->ignore();
+        break;
+    }
+  } else {
+    event->accept();
+  }
+
+  if (event->isAccepted()) {
+    qInfo() << "Saving GUI settings...";
+    SettingsHandler::saveSettings({{"geometry", saveGeometry()}, {"windowState", saveState()}},
+                                  "GUI");
+  }
+}

mainwindow.h

@@ -21,6 +21,10 @@ class MainWindow : public QMainWindow {
 
  signals:
   void displayStatusMessage(QString message);
+
+ protected:
+  void closeEvent(QCloseEvent* event) override;
+
  private slots:
   void on_pushButton_clicked();