text: /* Copyright 2007-2015 QReal Research Group
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License. */
  
  #pragma once
  
  #include <QtCore/QModelIndex>
  #include <QtWidgets/QDialog>
  #include <QtCore/QSettings>
  
  #include <qrkernel/settingsManager.h>
  #include <qrutils/widgets/qRealDialog.h>
  
  #include "preferencesPage.h"
  #include "preferencesDialogDeclSpec.h"
  
  namespace Ui {
  	class PreferencesDialog;
  }
  
  namespace qReal {
  namespace gui {
  
  class QRGUI_PREFERENCES_DIALOG_EXPORT PreferencesDialog : public utils::QRealDialog
  {
  	Q_OBJECT
  
  public:
  	explicit PreferencesDialog(QWidget *parent = nullptr);
  	~PreferencesDialog();
  
  	void init();
  
  	void registerPage(const QString &pageName, PreferencesPage * const page);
  	void switchCurrentPage(const QString &pageName);
  
  	/// Returns a list of registered preferences pages.
  	QList<PreferencesPage *> pages() const;
  
  protected:
  	void changeEvent(QEvent *e);
  	void showEvent(QShowEvent *e);
  
  signals:
  	/// Emitted each time when user presses "OK" or "Apply" button.
  	void settingsApplied();
  
  private slots:
  	void cancel();
  	void applyChanges();
  	void restoreSettings();
  	void saveAndClose();
  	void chooseTab(const QModelIndex &);
  	void exportSettings();
  	void importSettings();
  
  private:
  	Ui::PreferencesDialog *mUi;
  	QMap<QString, PreferencesPage *> mCustomPages;
  	QMap<QString, int> mPagesIndexes;
  };
  
  }
  }
  