Move all the preference pages to PreferencePages subfolder.

src/Gui/PreferencePages/DlgSettingsCacheDirectory.h

@@ -0,0 +1,109 @@
+/***************************************************************************
+ *   Copyright (c) 2021 Werner Mayer <wmayer[at]users.sourceforge.net>     *
+ *                                                                         *
+ *   This file is part of the FreeCAD CAx development system.              *
+ *                                                                         *
+ *   This library is free software; you can redistribute it and/or         *
+ *   modify it under the terms of the GNU Library General Public           *
+ *   License as published by the Free Software Foundation; either          *
+ *   version 2 of the License, or (at your option) any later version.      *
+ *                                                                         *
+ *   This library  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 Library General Public License for more details.                  *
+ *                                                                         *
+ *   You should have received a copy of the GNU Library General Public     *
+ *   License along with this library; see the file COPYING.LIB. If not,    *
+ *   write to the Free Software Foundation, Inc., 59 Temple Place,         *
+ *   Suite 330, Boston, MA  02111-1307, USA                                *
+ *                                                                         *
+ ***************************************************************************/
+
+
+#ifndef GUI_DIALOG_DLGSETTINGSCACHEDIRECTORY_H
+#define GUI_DIALOG_DLGSETTINGSCACHEDIRECTORY_H
+
+#include <Gui/PropertyPage.h>
+#include <memory>
+
+namespace Gui {
+namespace Dialog {
+class Ui_DlgSettingsCacheDirectory;
+
+/**
+ * The DlgSettingsCacheDirectory class implements a preference page to change settings
+ * for the cache directory handling.
+ * @author Werner Mayer
+ */
+class DlgSettingsCacheDirectory : public PreferencePage
+{
+    Q_OBJECT
+
+public:
+    explicit DlgSettingsCacheDirectory(QWidget* parent = nullptr);
+    ~DlgSettingsCacheDirectory() override;
+
+    void saveSettings() override;
+    void loadSettings() override;
+
+protected:
+    void changeEvent(QEvent *e) override;
+
+private:
+    void runCheck();
+    void openDirectory();
+    void setCurrentCacheSize(const QString&);
+
+private:
+    static QString currentSize;
+    std::unique_ptr<Ui_DlgSettingsCacheDirectory> ui;
+};
+
+class ApplicationCache : public QObject
+{
+    Q_OBJECT
+
+public:
+    enum class Period {
+        Always,
+        Daily,
+        Weekly,
+        Monthly,
+        Yearly,
+        Never
+    };
+
+    ApplicationCache();
+    void applyUserSettings();
+    void setPeriod(Period);
+    void setLimit(qint64);
+    bool periodicCheckOfSize() const;
+    qint64 size() const;
+    bool performAction(qint64);
+
+    static QString toString(qint64 size);
+    static qint64 toBytes(unsigned int);
+
+private:
+    void clearDirectory(const QString& path);
+    qint64 dirSize(QString dirPath) const;
+
+private:
+    qint64 limit;
+    int numDays;
+};
+
+class ApplicationCacheSettings
+{
+public:
+    static unsigned int getCacheSizeLimit();
+    static void setCacheSizeLimit(unsigned int);
+    static int getCheckPeriod();
+    static void setCheckPeriod(int);
+};
+
+} // namespace Dialog
+} // namespace Gui
+
+#endif // GUI_DIALOG_DLGSETTINGSCACHEDIRECTORY_H