From 28289ed08d33d97cfd3ff80af3bc6f53a11c88a1 Mon Sep 17 00:00:00 2001
From: raspopov <raspopov@cherubicsoft.com>
Date: Thu, 25 Dec 2025 18:52:42 +0300
Subject: [PATCH] Add the ability to launch an empty application

Now, the default registers window will only open automatically when the
program is launched for the first time, which is  determined by the
absence of an INI settings file.

Fixes #65
---
 omodsim/mainwindow.cpp | 10 +++++-----
 omodsim/mainwindow.h   |  2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/omodsim/mainwindow.cpp b/omodsim/mainwindow.cpp
index cf2054b..a1295b0 100644
--- a/omodsim/mainwindow.cpp
+++ b/omodsim/mainwindow.cpp
@@ -93,9 +93,7 @@ MainWindow::MainWindow(bool useSession, QWidget *parent)
     connect(&_mbMultiServer, &ModbusMultiServer::connectionError, this, &MainWindow::on_connectionError);
 
     if(_useSession) {
-        loadSettings();
-
-        if(_windowCounter == 0) {
+        if(!loadSettings()) {
             ui->actionNew->trigger();
         }
     }
@@ -1848,7 +1846,7 @@ void MainWindow::closeMdiChild(FormModSim* frm)
 ///
 /// \brief MainWindow::loadSettings
 ///
-void MainWindow::loadSettings()
+bool MainWindow::loadSettings()
 {
     const auto filename = QString("%1.ini").arg(QFileInfo(qApp->applicationFilePath()).baseName());
     auto filepath = QString("%1%2%3").arg(qApp->applicationDirPath(), QDir::separator(), filename);
@@ -1857,7 +1855,7 @@ void MainWindow::loadSettings()
         filepath = QString("%1%2%3").arg(QStandardPaths::writableLocation(QStandardPaths::ConfigLocation),
                                          QDir::separator(), filename);
 
-    if(!QFile::exists(filepath)) return;
+    if(!QFile::exists(filepath)) return false;
 
     QSettings m(filepath, QSettings::IniFormat, this);
 
@@ -1920,6 +1918,8 @@ void MainWindow::loadSettings()
     }
 
     restoreState(m.value("WindowState").toByteArray());
+
+    return true;
 }
 
 ///
diff --git a/omodsim/mainwindow.h b/omodsim/mainwindow.h
index 2fcbddb..70e86e7 100644
--- a/omodsim/mainwindow.h
+++ b/omodsim/mainwindow.h
@@ -163,7 +163,7 @@ private slots:
     void saveMdiChild(FormModSim* frm, SerializationFormat format);
     void closeMdiChild(FormModSim* frm);
 
-    void loadSettings();
+    bool loadSettings();
     void saveSettings();
 
     void saveAs(FormModSim* frm, SerializationFormat format);