Ref T631, Adding FG default directories

Only works on windows so far

src/blackmisc/simulation/flightgear/flightgearutil.cpp

@@ -0,0 +1,73 @@
+/* Copyright (C) 2019
+ * swift Project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution. No part of swift project, including this file, may be copied, modified, propagated,
+ * or distributed except according to the terms contained in the LICENSE file.
+ */
+
+#include "flightgearutil.h"
+#include "blackmisc/fileutils.h"
+#include "blackmisc/directoryutils.h"
+#include "blackconfig/buildconfig.h"
+#include "qsystemdetection.h"
+#include <QDir>
+#include <QFile>
+#include <QFileInfo>
+#include <QIODevice>
+#include <QTextStream>
+#include <QSettings>
+#include <QStandardPaths>
+
+using namespace BlackConfig;
+
+namespace BlackMisc
+{
+    namespace Simulation
+    {
+        namespace Flightgear
+        {
+
+            const QString &CFlightgearUtil::flightgearRootDir()
+            {
+                static QString flightgearRootDir;
+                if (CBuildConfig::isRunningOnWindowsNtPlatform()){
+                    QSettings flightgearRegistry("HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Uninstall\\FlightGear_is1", QSettings::NativeFormat);
+                    flightgearRootDir = flightgearRegistry.value("InstallLocation").toString().trimmed();
+                }
+                return flightgearRootDir;
+            }
+
+
+            bool CFlightgearUtil::isFlightgearRootDirExisting()
+            {
+                static const bool exists = QDir(flightgearRootDir()).exists();
+                return exists;
+            }
+
+            QStringList CFlightgearUtil::modelDirectoriesFromSimDir(const QString &simulatorDir)
+            {
+                QStringList dirs;
+                if (CBuildConfig::isRunningOnWindowsNtPlatform() && !simulatorDir.isEmpty()){
+                    QString terraSyncFolder = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation) + "/Flightgear/Aircraft";
+                    if(QDir(terraSyncFolder).exists()){ dirs.append(terraSyncFolder); }
+                    QString fgdataAIFolder = simulatorDir + "data/AI/Aircraft";
+                    if (QDir(fgdataAIFolder).exists()) { dirs.append(fgdataAIFolder); }
+                }
+                return dirs;
+            }
+
+            const QStringList &CFlightgearUtil::flightgearModelDirectories()
+            {
+                static const QStringList dirs = flightgearRootDir().isEmpty() ? QStringList() : modelDirectoriesFromSimDir(flightgearRootDir());
+                return dirs;
+            }
+
+            const QStringList &CFlightgearUtil::flightgearModelExcludeDirectoryPatterns()
+            {
+                static const QStringList empty;
+                return empty;
+            }
+        } // namespace
+    } // namespace
+} // namespace