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diff --git a/src/tabwidgetselectalgorithm.h b/src/tabwidgetselectalgorithm.h
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+#ifndef TABWIDGETSELECTALGORITHM_H
+#define TABWIDGETSELECTALGORITHM_H
+
+#include <QTabWidget>
+
+#include "cipherssingleton.h"
+#include "tabsymmetric.h"
+#include "tabasymmetric.h"
+#include "tabhybrid.h"
+
+
+
+
+
+/**
+* \class TabWidgetSelectAlgorithm
+* \brief Subclassed TabWidget for Algorithm-Selection.
+*
+* SubClass of QTabWidget with added functionality for exclusive selection of an algorithm for de/encryption,
+* sorted by the kind of algorithm (NullCipher, Symmetric, Asymmetric, Hybrid)
+* For each kind of algorithm, a special TabWidget has been implemented.
+* \author Uwe Gogolin [Gogolin.Uwe@FH-SWF.de]
+* \version 0.1
+* \date 28.02.2013
+*/
+class TabWidgetSelectAlgorithm : public QTabWidget
+{
+    Q_OBJECT
+
+public: //Methods
+    /**
+    * \brief Class Constructor.
+    *
+    * Class Constructor. Initializes the four different TabWidgets and adds them as Tabs to itself.
+    * Connects the Signal "currentChanged(int)" with the Slot "oncurrentChanged_triggered(int)", which
+    * after checking which is the new current Widget, sends that info via the Signal "currentTabChanged(QString)"
+    * [This is needed to keep the corresponding option in the Menu up to date]
+    * \param QWidget* parent The QWidget the used instance of this class is subordinated to.
+    */
+    TabWidgetSelectAlgorithm(QWidget *parent = 0);
+
+
+
+public slots:
+    /**
+    * \brief Slot called to set Tab for NullCipher active.
+    *
+    * Changes the current Tab to the NullCipher-Tab.
+    */
+    void onNullCipher_selected();
+
+
+    /**
+    * \brief Slot called to set Tab for Symmetric Ciphers active.
+    *
+    * Changes the current Tab to the Symmetric Ciphers-Tab.
+    */
+    void onSymmetric_selected();
+
+
+    /**
+    * \brief Slot called to set Tab for Asymmetric Ciphers active.
+    *
+    * Changes the current Tab to the Asymmetric Ciphers-Tab.
+    */
+    void onAsymmetric_selected();
+
+
+    /**
+    * \brief Slot called to set Tab for Hybrid Ciphers active.
+    *
+    * Changes the current Tab to the Hybrid Ciphers-Tab.
+    */
+    void onHybrid_selected();
+
+
+
+signals:
+    /**
+    * \brief SIGNAL to inform other Classes when another Tab becomes active.
+    *
+    * This Signal is used to inform other Classes when a new Tab becomes active.
+    * [NOTE: Will be modified to use NameSpaceCryptEngine::CryptAlgorithm in the future]
+    * \param QString currentTabName string containing the Name of the newly active Tab.
+    */
+    void currentTabChanged(QString currentTabName);
+
+
+
+    /**
+    * \brief SIGNAL to inform other Classes when a Cipher gets selected.
+    *
+    * This Signal is used to inform other Classes when a Cipher gets selected.
+    * \param int cipher The Integer referencing the selected Cipher according to the Class CiphersSingleton.
+    */
+    void cipherChanged(int cipher);
+
+
+
+    /**
+    * \brief SIGNAL to inform other Classes when the Keylength is changed.
+    *
+    * This Signal is used to inform other Classes when the Keylength is changed.
+    * \param int keyLength The new Keylength.
+    * \param bool symmetric True if Length for Symmetric Cipher, false if for asymmetric Cipher.
+    */
+    void keyLengthChanged(int keyLength, bool symmetric);
+
+
+private slots:
+    /**
+    * \brief Slot needed to get the pointer to the newly active Tab from its index.
+    *
+    * This slot is called when the currently active Tab changes. This Tab, however, is only referenced by index
+    * by the Signal "currentChanged", which is fine for reference inside this Class.
+    * For Classes outside, a better description is needed. Currently, a QString is used.
+    * [NOTE: Will be modified to use NameSpaceCryptEngine::CryptAlgorithm in the future]
+    * \param int index Index of the newly active Tab
+    */
+    void oncurrentChanged_triggered(int index);
+
+
+
+private: //Attributes
+    /**
+    * \brief Pointer to the TabWidget for NullCipher.
+    *
+    * \attention This Tab is supposed to be empty, since there no settings for the NullCipher.
+    */
+    QWidget* m_nullCipher;
+
+
+    /**
+    * \brief Pointer to the TabWidget for Symmetric Ciphers.
+    */
+    QWidget* m_symmetric;
+
+
+    /**
+    * \brief Pointer to the TabWidget for Asymmetric Ciphers.
+    */
+    QWidget* m_asymmetric;
+
+
+    /**
+    * \brief Pointer to the TabWidget for Hybrid Ciphers.
+    */
+    QWidget* m_hybrid;    
+};
+
+#endif // TABWIDGETSELECTALGORITHM_H