init

lib/engine/rs_system.h

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+/****************************************************************************
+**
+** This file is part of the LibreCAD project, a 2D CAD program
+**
+** Copyright (C) 2010 R. van Twisk (librecad@rvt.dds.nl)
+** Copyright (C) 2021 A. Stebich (librecad@mail.lordofbikes.de)
+** Copyright (C) 2001-2003 RibbonSoft. All rights reserved.
+**
+**
+** This file may be distributed and/or modified under the terms of the
+** GNU General Public License version 2 as published by the Free Software 
+** Foundation and appearing in the file gpl-2.0.txt included in the
+** packaging of this file.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+** 
+** You should have received a copy of the GNU General Public License
+** along with this program; if not, write to the Free Software
+** Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+**
+** This copyright notice MUST APPEAR in all copies of the script!  
+**
+**********************************************************************/
+
+
+#ifndef RS_SYSTEM_H
+#define RS_SYSTEM_H
+
+#include <QDir>
+#include <QList>
+#include <QSharedPointer>
+
+#include "rs_debug.h"
+#include "rs_locale.h"
+
+#define RS_SYSTEM RS_System::instance()
+
+/**
+ * Class for some system methods such as file system operations.
+ * Implemented as singleton. Use init to Initialize the class
+ * before you use it.
+ *
+ * @author Andrew Mustun
+ */
+class RS_System {
+
+protected:
+    RS_System() {
+        initialized = false;
+    }
+
+public:
+    /**
+     * @return Instance to the unique system object.
+     */
+    static RS_System* instance() {
+        if (uniqueInstance==NULL) {
+            uniqueInstance = new RS_System();
+        }
+        return uniqueInstance;
+    }
+
+    void init(const QString& appName,
+              const QString& appVersion,
+              const QString& appDirName,
+              const char *arg0);
+    void initLanguageList();
+    void initAllLanguagesList();
+
+    bool checkInit();
+    bool createPaths(const QString& p);
+
+    /**
+     * @return Users home directory.
+     */
+    QString getHomeDir() {
+        return QDir::homePath();
+    }
+
+    /**
+     * @return Current directory.
+     */
+    QString getCurrentDir() {
+        return QDir::currentPath();
+    }
+
+    /**
+     * @return Application Data directory.
+     */
+    QString getAppDataDir();
+
+    /**
+     * @return A list of absolute paths to all font files found.
+     */
+    QStringList getFontList() {
+        QStringList ret = getFileList("fonts", "cxf");
+        return ret;
+    }
+
+    /**
+     * @return A list of absolute paths to all NEW font files found.
+     */
+    QStringList getNewFontList() {
+        QStringList ret = getFileList("fonts", "lff");
+        return ret;
+    }
+
+    /**
+     * @return A list of absolute paths to all hatch pattern files found.
+     */
+    QStringList getPatternList() {
+        QStringList ret = getFileList("patterns", "dxf");
+        return ret;
+    }
+
+    /**
+     * @return A list of absolute paths to all script files found.
+     */
+    QStringList getScriptList() {
+        QStringList ret = getFileList("scripts/qsa", "qs");
+        return ret;
+    }
+
+    /**
+     * @return A list of absolute paths to all machine configuration files found.
+     */
+    QStringList getMachineList() {
+        QStringList ret = getFileList("machines", "cxm");
+        return ret;
+    }
+
+    /**
+     * @return Absolute path to the documentation.
+     */
+    QString getDocPath() {
+        QStringList lst = getDirectoryList("doc");
+
+        if( !lst.isEmpty()) {
+            return lst.first();
+        }
+        else {
+            return QString();
+        }
+    }
+
+    /**
+     * @return The application name.
+     */
+    QString getAppName() {
+        return appName;
+    }
+
+    /**
+     * @return The application version.
+     */
+    QString getAppVersion() {
+        return appVersion;
+    }
+
+    QStringList getFileList(const QString& subDirectory,
+                            const QString& fileExtension);
+
+    QStringList getDirectoryList(const QString& subDirectory);
+
+    QStringList getLanguageList() {
+        return languageList;
+    }
+
+    static QString languageToSymbol(const QString& lang);
+    static QString symbolToLanguage(const QString& symb);
+
+    static QString getEncoding(const QString& str);
+
+    void loadTranslation(const QString& lang, const QString& langCmd);
+
+    static bool test();
+
+    /** Returns ISO code for given locale. Needed for win32 to convert
+     *  from system encodings.
+     */
+    static QByteArray localeToISO(const QByteArray& locale);
+
+private:
+    void addLocale(RS_Locale *locale);
+
+protected:
+    static RS_System* uniqueInstance;
+
+    QString appName;
+    QString appVersion;
+    QString appDirName;
+    QString appDir;
+
+    QStringList languageList;   //< List of available translations
+    bool initialized {false};
+    bool externalAppDir {false};
+    QList<QSharedPointer<RS_Locale> > allKnownLocales;
+};
+
+#endif