Build system changed to Cmake, ORM changed to QxORM, Qt6 compatibility.

core/iplugin.h

@@ -18,24 +18,18 @@ class IPlugin
 {
 
 public:
-    IPlugin() {
-        m_ui = NULL;
-        m_service = NULL;
-        m_settingsUi = NULL;
-    }
+    IPlugin() = default;
 
     virtual ~IPlugin() {
-        if (m_service != NULL)
-        {
-            delete m_service;
-        }
+        delete m_service;
+        delete m_translator;
 
-        if (m_ui != NULL && m_ui->parent() == NULL)
+        if (m_ui != nullptr && m_ui->parent() == nullptr)
         {
             delete m_ui;
         }
 
-        if (m_settingsUi != NULL && m_settingsUi->parent() == NULL)
+        if (m_settingsUi != nullptr && m_settingsUi->parent() == nullptr)
         {
             delete m_settingsUi;
         }
@@ -56,18 +50,18 @@ public:
         if (!permEv.hasPermission(pluginId(), PERM_READ))
         {
             QMessageBox::critical(m_ui, QObject::tr("Permission denied"), QObject::tr("You don't have permission to open this plugin."));
-            return NULL;
+            return nullptr;
         }
 
         IGridForm *form = qobject_cast<IGridForm*>(m_ui);
         bool filled = true;
 
-        if (form != NULL)
+        if (form != nullptr)
         {
             filled = form->fillData();
         }
 
-        return filled ? m_ui : NULL;
+        return filled ? m_ui : nullptr;
     }
 
     QList<QFrame*> dasboardWidgets() {
@@ -88,24 +82,30 @@ public:
     }
 
     virtual bool showIcon() { return true; }
-    virtual QTranslator* translator() { return NULL; }
-    virtual QIcon pluginIcon() { return QIcon(); }
+    virtual QTranslator* translator() { return nullptr; }
+    virtual QIcon pluginIcon() { return {}; }
     QMap<QString, QString> translations() { return m_translations; }
 
     virtual bool hasNumberSeries() { return false; }
     virtual QString numberSeriesPrefix() { return ""; }
 
 protected:
-    QTranslator* translatorFrom(QString fileName) {
-        QTranslator *trans = new QTranslator();
-        trans->load(fileName + QLocale::system().name());
+    QTranslator* translatorFrom(const QString& fileName) {
+        if (!m_translator) {
+            m_translator = new QTranslator();
 
-        return trans;
+            if (!m_translator->load(fileName + QLocale::system().name())) {
+                qDebug() << "Cannot load translation";
+            }
+        }
+
+        return m_translator;
     }
 
-    QWidget *m_ui;
-    QWidget *m_settingsUi;
-    IService *m_service;
+    QTranslator* m_translator{nullptr};
+    QWidget *m_ui {nullptr};
+    QWidget *m_settingsUi {nullptr};
+    IService *m_service {nullptr};
     QMap<QString, QString> m_translations;
     QList<QFrame*> m_dashboardWidgets;
 };