Got entirely rid of global variables

src/Lib/client.cpp

@@ -18,14 +18,13 @@
  */
 
 #include "clientpinger.h"
-#include "lablib.h"
+#include "settings.h"
 
-#include <memory>
+#include <QMessageBox>
-
+#include <QTimer>
-extern std::unique_ptr<lc::Settings> settings;
-extern std::unique_ptr<lc::Lablib> lablib;
 
 lc::Client::Client(const QString &argIP, const QString &argMAC, const QString &argName,
+                   const Settings *const argSettings,
                    const unsigned short int argXPosition,
                    const unsigned short int argYPosition,
                    const QString &argPingCmd):
@@ -34,7 +33,8 @@ lc::Client::Client(const QString &argIP, const QString &argMAC, const QString &a
     name{argName},
     xPosition{argXPosition},
     yPosition{argYPosition},
-    protectedCycles{0}
+    protectedCycles{0},
+    settings{argSettings}
 {
     qRegisterMetaType<state_t>("state_t");
 

src/Lib/client.h

@@ -29,6 +29,7 @@ class QTimer;
 namespace lc {
 
 class ClientPinger;
+class Settings;
 
 //! Class which represents the clients in the lab
 /*!
@@ -58,6 +59,7 @@ public:
      * \param argYPosition  The client's y coordinate in the lab's grid
      */
     Client(const QString &argIP, const QString &argMAC, const QString &argName,
+           const Settings *const argSettings,
            const unsigned short int argXPosition,
            const unsigned short int argYPosition,
            const QString &argPingCmd);
@@ -148,6 +150,7 @@ private:
     unsigned short int protectedCycles;
     ClientPinger *pinger = nullptr;
     QThread pingerThread;
+    const Settings *const settings = nullptr;
     state_t state = state_t::UNINITIALIZED;
     //! QTimer used to trigger pings by pinger's ClientPinger instance
     QTimer *pingTimer = nullptr;

src/Lib/clienthelpnotificationserver.cpp

@@ -26,8 +26,6 @@
 #include <QTcpServer>
 #include <QTcpSocket>
 
-#include <memory>
-
 lc::ClientHelpNotificationServer::ClientHelpNotificationServer(const Settings *const argSettings,
                                                                QObject *argParent) :
     QObject{argParent},

src/Lib/lablib.h

@@ -21,7 +21,6 @@
 #define LABLIB_H
 
 #include <list>
-#include <memory>
 
 #include <QDir>
 #include <QItemSelectionModel>
@@ -130,7 +129,7 @@ private:
     QThread netstatThread;
     //! A timer for regular execution of the NetstatAgent instance's request mechanism
     QTimer *netstatTimer = nullptr;
-    QVector< quint16 > occupiedPorts;
+    QVector<quint16> occupiedPorts;
     //! A derivation from QAbstractTableModel used to store the single Session instances
     SessionsModel *sessionsModel = nullptr;
     Settings *const settings = nullptr;

src/Lib/receipts_handler.cpp

@@ -17,8 +17,6 @@
  *  along with Labcontrol.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <memory>
-
 #include <QDebug>
 
 #include "receipts_handler.h"

src/Lib/session.cpp

@@ -22,8 +22,6 @@
 
 #include <QDir>
 
-#include <memory>
-
 lc::Session::Session(QVector<Client *> &&argAssocClients,
                      const QString &argZTreeDataTargetPath, const quint16 argZTreePort,
                      const QString &argZTreeVersionPath, bool argPrintReceiptsForLocalClients,

src/Lib/settings.cpp

@@ -134,12 +134,12 @@ lc::Settings::Settings(const QSettings &argSettings, QObject *argParent) :
     installedZTreeVersions{DetectInstalledzTreeVersions()},
     clientHelpNotificationServerPort{GetClientHelpNotificationServerPort(argSettings)},
     chosenzTreePort{GetInitialPort(argSettings)},
-    clients{CreateClients(argSettings, pingCmd)},
     localzLeafName{ReadSettingsItem("local_zLeaf_name",
                                     "The local zLeaf default name will default to 'local'.",
-                                    argSettings, false)},
+                                    argSettings, false)}
-    clIPsToClMap{CreateClIPsToClMap(clients)}
 {
+    clients = CreateClients(argSettings, pingCmd);
+    clIPsToClMap = CreateClIPsToClMap(clients);
     // Let the local zLeaf name default to 'local' if none was given in the settings
     if (localzLeafName.isEmpty()) {
         qDebug() << "'local_zLeaf_name' was not set, defaulting to 'local'";
@@ -241,9 +241,11 @@ QVector<lc::Client *> lc::Settings::CreateClients(const QSettings &argSettings,
     qDebug() << "clientYPositions:" << clientYPositions.join(" / ");
 
     for (int i = 0; i < clientQuantity; i++) {
-        tempClientVec.append(new Client{clientIPs[i], clientMACs[i], clientNames[i],
+        tempClientVec.append(new Client{clientIPs[i], clientMACs[i],
+                                        clientNames[i], this,
                                         clientXPositions[i].toUShort(),
-                                        clientYPositions[i].toUShort(), argPingCmd});
+                                        clientYPositions[i].toUShort(),
+                                        argPingCmd});
     }
 
     return tempClientVec;

src/Lib/settings.h

@@ -103,7 +103,7 @@ private:
     static bool CheckPathAndComplain(const QString &argPath,
                                      const QString &argVariableName,
                                      const QString &argMessage);
-    static QVector<Client *> CreateClients(const QSettings &argSettings,
+    QVector<Client *> CreateClients(const QSettings &argSettings,
                                     const QString &argPingCmd);
     static QMap<QString, Client *> CreateClIPsToClMap(const QVector<Client *> &argClients);
     QStringList DetectInstalledLaTeXHeaders() const;
@@ -119,11 +119,11 @@ private:
                                     bool argItemIsFile);
 
     int chosenzTreePort = 0;
-    QVector< Client * > clients;
+    QVector<Client *> clients;
     QString localzLeafName;
 
 public:
-    const QMap<QString, Client *> clIPsToClMap;
+    QMap<QString, Client *> clIPsToClMap;
 };
 
 } // namespace lc

src/Lib/ztree.cpp

@@ -23,8 +23,6 @@
 #include <QDebug>
 #include <QDir>
 
-#include <memory>
-
 lc::ZTree::ZTree(const Settings *const argSettings,
                  const QString &argZTreeDataTargetPath, const int argZTreePort,
                  const QString &argZTreeVersionPath, QObject *argParent) :

src/localzleafstarter.cpp

@@ -23,8 +23,6 @@
 
 #include <QMessageBox>
 
-#include <memory>
-
 lc::LocalzLeafStarter::LocalzLeafStarter(Settings *const argSettings,
                                          QWidget *argParent) :
     QWidget{argParent},

src/main.cpp

@@ -22,16 +22,11 @@
 
 #include <QApplication>
 
-#include <memory>
-
-std::unique_ptr<lc::Settings> settings;
-
 int main(int argc, char *argv[])
 {
     QApplication a{argc, argv};
-    settings = std::make_unique<lc::Settings>(QSettings{"Labcontrol",
+    lc::Settings settings{QSettings{"Labcontrol", "Labcontrol"}};
-                                                        "Labcontrol"});
+    lc::MainWindow w{&settings};
-    lc::MainWindow w{settings.get()};
     w.show();
 
     return a.exec();

src/manualprintingsetup.cpp

@@ -24,8 +24,6 @@
 #include <QFileDialog>
 #include <QMessageBox>
 
-#include <memory>
-
 lc::ManualPrintingSetup::ManualPrintingSetup(const Settings *const argSettings,
                                              QWidget *argParent) :
     QWidget{argParent},