Moved 'installedZTreeVersions' into 'lc::Settings'

src/Lib/lablib.cpp

@@ -71,7 +71,6 @@ lc::Lablib::~Lablib () {
         }
     }
     delete clients;
-    delete InstalledZTreeVersions;
     delete occupiedPorts;
 }
 
@@ -106,28 +105,6 @@ void lc::Lablib::DetectInstalledZTreeVersionsAndLaTeXHeaders() {
             debugMessagesTextEdit->appendPlainText( tr( "[DEBUG] LaTeX headers: %1" ).arg( installedLaTeXHeaders->join( " / " ) ) );
         }
     }
-
-    // Detect the installed zTree versions
-    if ( !settings->zTreeInstDir.isEmpty() ) {
-        QDir zTreeDirectory{ settings->zTreeInstDir, "zTree*", QDir::Name,
-                             QDir::NoDotAndDotDot | QDir::Dirs
-                             | QDir::Readable | QDir::CaseSensitive };
-        if ( zTreeDirectory.entryList().isEmpty() ) {
-            QMessageBox messageBox{ QMessageBox::Critical, tr( "zTree not found" ),
-                        tr( "No zTree installation found in '%1'. Running zTree will not be possible." )
-                        .arg( settings->zTreeInstDir ), QMessageBox::Ok };
-            messageBox.exec();
-
-            debugMessagesTextEdit->appendPlainText( tr( "[DEBUG] No zTree versions could be found in '%1'." )
-                                                    .arg( settings->zTreeInstDir ) );
-        }
-        else {
-            InstalledZTreeVersions = new QStringList{ zTreeDirectory.entryList() };
-            InstalledZTreeVersions->replaceInStrings( "zTree_", "" );
-
-            debugMessagesTextEdit->appendPlainText( tr( "[DEBUG] zTree versions: %1" ).arg( InstalledZTreeVersions->join( " / " ) ) ) ;
-        }
-    }
 }
 
 void lc::Lablib::GotNetstatQueryResult( QStringList *argActiveZLeafConnections ) {

src/Lib/lablib.h

@@ -112,11 +112,6 @@ public:
      * @return A pointer to a QStringList containing all available LaTeX headers
      */
     QStringList *GetInstalledLaTeXHeaders () const {return installedLaTeXHeaders; }
-    /** Returns a QStringList containing all available zTree versions of this system
-     *
-     * @return A pointer to a QStringList containing all available zTree versions
-     */
-    QStringList *GetInstalledZTreeVersions () const { return InstalledZTreeVersions; }
     void SetChosenZTreeDataTargetPath( const QString &argZTreeDataTargetPath );
     void SetChosenZTreePort( const int &argPort );
     //! Sets the default name of local zLeaf instances
@@ -157,7 +152,6 @@ private:
     QPlainTextEdit *debugMessagesTextEdit = nullptr;       //! This stores a pointer to the text edit in the debug tab to be able to write to it
     int defaultReceiptIndex = 0;                  //! Stores the index of the LaTeX header to be displayed by default
     QStringList *installedLaTeXHeaders = nullptr;
-    QStringList *InstalledZTreeVersions = nullptr;
     QSettings labSettings;
     NetstatAgent *netstatAgent = nullptr;           //! Tries to detect active zLeaf connections from the clients
     QThread netstatThread;

src/Lib/settings.cpp

@@ -1,4 +1,5 @@
 #include <QDebug>
+#include <QDir>
 #include <QFile>
 #include <QProcessEnvironment>
 
@@ -90,11 +91,13 @@ lc::Settings::Settings( const QSettings &argSettings, QObject *argParent ) :
     zTreeInstDir{ ReadSettingsItem( "ztree_installation_directory",
                                     "zTree will not be available.",
                                     argSettings, true ) },
+    installedZTreeVersions{ DetectInstalledzTreeVersions() },
     localzLeafName{ ReadSettingsItem( "local_zLeaf_name",
                                       "The local zLeaf default name will default to 'local'.",
                                       argSettings, false ) }
 {
     qDebug() << "The following webcams where loaded:" << webcams;
+    qDebug() << "Detected z-Tree versions" << installedZTreeVersions;
 }
 
 bool lc::Settings::CheckPathAndComplain( const QString &argPath, const QString &argVariableName,
@@ -108,6 +111,22 @@ bool lc::Settings::CheckPathAndComplain( const QString &argPath, const QString &
     return true;
 }
 
+QStringList lc::Settings::DetectInstalledzTreeVersions() const {
+    QStringList tempInstzTreeVersions;
+    if ( !zTreeInstDir.isEmpty() ) {
+        QDir zTreeDirectory{ zTreeInstDir, "zTree_*", QDir::Name,
+                             QDir::NoDotAndDotDot | QDir::Dirs
+                             | QDir::Readable | QDir::CaseSensitive };
+        if ( zTreeDirectory.entryList().isEmpty() ) {
+            qWarning() << "No zTree versions could be found in" << zTreeInstDir;
+        } else {
+            tempInstzTreeVersions = zTreeDirectory.entryList();
+            tempInstzTreeVersions.replaceInStrings( "zTree_", "" );
+        }
+    }
+    return tempInstzTreeVersions;
+}
+
 QString lc::Settings::GetLocalUserName() {
     const QProcessEnvironment env{ QProcessEnvironment::systemEnvironment() };
     QString userName;

src/Lib/settings.h

@@ -49,10 +49,12 @@ public:
     const QString wmctrlCmd;
     const QString xsetCmd;
     const QString zTreeInstDir;
+    const QStringList installedZTreeVersions;
 
 private:
     static bool CheckPathAndComplain( const QString &argPath, const QString &argVariableName,
                                       const QString &argMessage );
+    QStringList DetectInstalledzTreeVersions() const;
     static QString GetLocalUserName();
     static QString ReadSettingsItem( const QString &argVariableName,
                                      const QString &argMessage,

src/mainwindow.cpp

@@ -654,8 +654,8 @@ void lc::MainWindow::SetupWidgets() {
     }
     clients = nullptr;
 
-    const QStringList *zTreeEntries = lablib->GetInstalledZTreeVersions();
-    if ( zTreeEntries == nullptr ) {
+    const QStringList &zTreeEntries = settings->installedZTreeVersions;
+    if ( zTreeEntries.isEmpty() ) {
         ui->CBClientNames->setEnabled( false );
         ui->GBzTree->setEnabled( false );
         ui->GLzLeafSettings->setEnabled( false );
@@ -665,7 +665,7 @@ void lc::MainWindow::SetupWidgets() {
         ui->PBStartzLeaf->setEnabled( false );
     } else {
         ui->CBzLeafVersion->addItem( "NONE" );
-        for ( auto zTreeVersionString : *zTreeEntries ) {
+        for ( const auto &zTreeVersionString : zTreeEntries ) {
             ui->CBzLeafVersion->addItem( zTreeVersionString );
         }
         ui->CBzLeafVersion->setCurrentIndex( 0 );

src/sessionstarter.cpp

@@ -17,8 +17,13 @@
  *  along with Labcontrol.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+#include <memory>
+
 #include "sessionstarter.h"
 #include "ui_sessionstarter.h"
+#include "Lib/settings.h"
+
+extern std::unique_ptr< lc::Settings > settings;
 
 lc::SessionStarter::SessionStarter( Lablib *argLablib, QPlainTextEdit *argDebugMessagesTextEdit, QWidget *parent ) :
     QWidget{ parent },
@@ -106,9 +111,9 @@ void lc::SessionStarter::SetupWidgets() {
 
     // Fill the 'CBzTreeVersion' combobox with known entries from the lablib class
     ui->CBzTreeVersion->addItem( "NONE" );
-    const QStringList * const zTreeEntries = lablib->GetInstalledZTreeVersions();
-    if ( !( zTreeEntries == nullptr ) ) {
-        for ( auto zTreeVersionString : *zTreeEntries ) {
+    const QStringList &zTreeEntries = settings->installedZTreeVersions;
+    if ( !zTreeEntries.isEmpty() ) {
+        for ( const auto &zTreeVersionString : zTreeEntries ) {
             ui->CBzTreeVersion->addItem( zTreeVersionString );
         }
         ui->CBzTreeVersion->setCurrentIndex( 0 );