Defined new finished() signal in InsightWorkerTask

src/Insight/InsightWorker/Tasks/InsightWorkerTask.cpp

@@ -19,5 +19,7 @@ namespace Bloom
             Logger::debug("InsightWorker task failed - " + std::string(exception.what()));
             emit this->failed(QString::fromStdString(exception.what()));
         }
+
+        emit this->finished();
     }
 }

src/Insight/InsightWorker/Tasks/InsightWorkerTask.hpp

@@ -27,10 +27,29 @@ namespace Bloom
         void execute(TargetController::TargetControllerConsole& targetControllerConsole);
 
     signals:
+        /**
+         * The InsightWorkerTask::started() signal will be emitted once the task has started (InsightWorker::run() is
+         * called)
+         */
         void started();
-        void failed(QString errorMessage);
+
+        /**
+         * The InsightWorkerTask::completed() signal will be emitted once the task has successfully completed.
+         */
         void completed();
 
+        /**
+         * The InsightWorkerTask::failed() signal will be emitted when the task fails (InsightWorkerTask::run() throws
+         * an exception).
+         */
+        void failed(QString errorMessage);
+
+        /**
+         * The InsightWorkerTask::finished() signal will be emitted at the end of the task, regardless to whether it
+         * completed successfully or failed.
+         */
+        void finished();
+
     protected:
         virtual void run(TargetController::TargetControllerConsole& targetControllerConsole) = 0;
     };