First commit of IT-Sicherheit

1 files changed, 296 insertions, 0 deletions

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+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include <QMainWindow>
+#include <QPlainTextEdit>
+#include <QMenu>
+#include <QActionGroup>
+#include <QMessageBox>
+#include <QFile>
+
+#include "tabwidgetselectalgorithm.h"
+#include "crypt/cryptengine.h"
+#include "dialogload.h"
+#include "dialogsave.h"
+
+namespace Ui {
+class MainWindow;
+}
+
+
+
+
+/**
+* \class MainWindow
+* \brief Class for the Application's MainWindow.
+*
+* This Class encapsulates the GUI-functionality (Menu, Buttons, Edits and their connections).
+* The Attribute m_cryptEngine provides an interface to all crypt-related functionality.
+* [m_cryptEngine is a QObject and thus can be connected via Signals and Slots]
+* \author Uwe Gogolin [Gogolin.Uwe@FH-SWF.de]
+* \version 1.0.1
+* \date 13.05.2013
+*/
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+    
+public: //Methods
+    /**
+    * \brief Class Constructor.
+    *
+    * Class Constructor. Initializes Graphical Elements of the Widget and sets the Window's Title.
+    * A new cryptEngine is created (m_cryptEngine).
+    * Menu actions for the four kinds of Ciphers are grouped in the actionGroup m_actionGroupAlgorithm to enable
+    * exclusive selection.
+    * The TabWidgetSelectAlgorithm's Signal "currentTabChanged(QString)" is connected to the Slot "oncurrentTabChanged_triggered(QString)",
+    * so that the currently active Tab corresponds to what action is selected in the menu.
+    * \param QWidget* parent The QWidget the used instance of this class is subordinated to (0, since this is the MainWindow).
+    */
+    MainWindow(QWidget *parent = 0);
+
+
+    /**
+    * \brief Class Destructor.
+    *
+    * Class Destructor. Deletes CryptEngine and the ui-Object containing the graphical Elements.
+    */
+    ~MainWindow();
+
+
+    
+private: //Attributes
+    /**
+    * \brief Pointer to GUI-Object.
+    */
+    Ui::MainWindow* ui;
+
+
+    /**
+    * \brief Pointer to the instance of the Crypt-Interface-Class.
+    */
+    CryptEngine*    m_cryptEngine;
+
+
+    /**
+    * \brief Actiongroup used to group the menu-actions for the four kinds of Ciphers.
+    */
+    QActionGroup*   m_actionGroupAlgorithm;
+
+
+
+private: //Methods
+    /**
+    * \brief Method to put Text from a File into a QPlainTextEdit.
+    *
+    * \param QPlainTextEdit* destination Text will be inserted here.
+    */
+    void setDataToPlainTextEditUnencrypted( QString text );
+
+    /**
+    * \brief Method to put Text from a File into a QPlainTextEdit.
+    *
+    * \param QPlainTextEdit* destination Text will be inserted here.
+    */
+    void setDataToPlainTextEditEncrypted( QString text );
+
+
+
+    /**
+    * \brief Method to put Text from a File into a QPlainTextEdit.
+    *
+    * Reads all Text from File and puts it into the given QPlainTextEdit.
+    * \param QPlainTextEdit* destination Text will be inserted here.
+    * \param QFile* source Text will be read from here.
+    */
+    void setPlainTextFromFile( QPlainTextEdit* destination, QFile* source );
+
+
+    /**
+    * \brief Method to put Binary Data from a File into a Subclass of QPlainTextEdit.
+    *
+    * Reads all data from File and puts it into the given QPlainTextEdit.
+    * \param QPlainTextEdit* destination Data will be inserted here.
+    * \param QFile* source Data will be read from here.
+    * \attention THIS METHOD IS NOT IMPLEMENTED YET
+    */
+    void setBinaryDataFromFile( QPlainTextEdit* destination, QFile* source );
+
+
+    /**
+    * \brief Method to write Text from a QPlainTextEdit into a File.
+    *
+    * Writes all Text from QPlainTextEdit and puts it into the given File.
+    * \param QPlainTextEdit* source Text will be read from here.
+    * \param QFile* destination Text will be read from here.
+    */
+    void writePlainTextToFile( QPlainTextEdit* source, QFile* destination );
+
+
+    /**
+    * \brief Method to write Binary Data into a File.
+    *
+    * Writes all data into File.
+    * \param QPlainTextEdit* source Text will be inserted here.
+    * \param QFile* destination Text will be read from here.
+    * \attention THIS METHOD IS NOT IMPLEMENTED YET
+    */
+    void writeBinaryDataToFile( QPlainTextEdit* source, QFile* destination );
+
+
+
+private slots:
+    //actions
+    /**
+    * \brief Slot for the Load Action.
+    *
+    * Opens a Dialog for selection of the file to open.
+    */
+    void on_actionLoad_triggered();
+
+
+    /**
+    * \brief Slot for the Save Action.
+    *
+    * Opens a Dialog for selection of the file to save.
+    */
+    void on_actionSave_triggered();
+
+
+    /**
+    * \brief Slot for the Exit Action.
+    *
+    * Closes the application.
+    */
+    void on_actionExit_triggered();
+
+
+    /**
+    * \brief Slot for the About Action.
+    *
+    * Opens a Message Box displaying basic Information about the application.
+    */
+    void on_actionAbout_triggered();
+
+
+
+    //crypt actions
+    /**
+    * \brief Slot for the NullCipher Action.
+    *
+    * Sets the active kind of algorithm to NullCipher. The instance of the TabWidgetSelectAlgorithm's Tab for NullCipher
+    * will be set active as well.
+    */
+    void on_actionNullCipher_triggered();
+
+
+    /**
+    * \brief Slot for the Symmetric Action.
+    *
+    * Sets the active kind of algorithm to Symmetric Ciphers. The instance of the TabWidgetSelectAlgorithm's Tab for Symmetric Ciphers
+    * will be set active as well.
+    */
+    void on_actionSymmetric_triggered();
+
+
+    /**
+    * \brief Slot for the Asymmetric Action.
+    *
+    * Sets the active kind of algorithm to Asymmetric Ciphers. The instance of the TabWidgetSelectAlgorithm's Tab for Asymmetric Ciphers
+    * will be set active as well.
+    */
+    void on_actionAsymmetric_triggered();
+
+
+    /**
+    * \brief Slot for the Hybrid Action.
+    *
+    * Sets the active kind of algorithm to Hybrid Ciphers. The instance of the TabWidgetSelectAlgorithm's Tab for Hybrid Ciphers
+    * will be set active as well.
+    */
+    void on_actionHybrid_triggered();
+
+
+    void on_actionUnencrypted_as_Text_triggered(bool checked);
+    void on_actionUnencrypted_as_Binary_triggered(bool checked);
+    void on_actionEncrypted_as_Text_triggered(bool checked);
+    void on_actionEncrypted_as_Binary_triggered(bool checked);
+
+    //rest gui
+    /**
+    * \brief Slot for the Button which tells the CryptEngine to generate a new Password.
+    *
+    * Calls the generatePassword Method of class CryptEngine.
+    * \attention This Method may do nothing depending on the Algorithm in use.
+    * \see CryptEngine::generatePassword
+    */
+    void on_pushButtonGeneratePassword_clicked();
+
+
+    /**
+    * \brief Slot for the Clear Button for QPlainTextEdit for Unencrpted Data.
+    *
+    * Calls the clear-method of the QPlainTextEdit for Unencrypted Data.
+    */
+    void on_pushButtonClearUnencrypted_clicked();
+
+
+    /**
+    * \brief Slot for the Clear Button for QPlainTextEdit for Encrpted Data.
+    *
+    * Calls the clear-method of the QPlainTextEdit for Encrypted Data.
+    */
+    void on_pushButtonClearEncrypted_clicked();
+
+
+    /**
+    * \brief Slot for the Encrypt Button.
+    *
+    * Calls the encrypt-method of m_CryptEngine, encrypting CryptText using the currently selected algorithm and key.
+    */
+    void on_pushButtonEncrypt_clicked();
+
+
+    /**
+    * \brief Slot for the Decrypt Button.
+    *
+    * Calls the decrypt-method of m_CryptEngine, decrypting CryptText using the currently selected algorithm and key.
+    */
+    void on_pushButtonDecrypt_clicked();
+
+
+    /**
+    * \brief Slot for the Load Button.
+    *
+    * Opens a Dialog for selection of the file to open by calling on_actionLoad_triggered().
+    */
+    void on_pushButtonLoad_clicked();
+
+
+    /**
+    * \brief Slot for the Save Button.
+    *
+    * Opens a Dialog for selection of the file to save by calling on_actionSave_triggered().
+    */
+    void on_pushButtonSave_clicked();
+
+
+
+    //rest/ other
+    /**
+    * \brief Slot called when the instance of TabWidgetSelectAlgorithm changes the active Tab.
+    *
+    * Changes the currently selected Menu-Action (what kind of encryption) according to the newly active Tab.
+    */
+    void oncurrentTabChanged_triggered( QString currentTabName );
+
+
+    /**
+    * \brief Slot called to change PlainTextEdits from Binary to PlainText when a new algorithm is selected.
+    *
+    * Sets both PlainttextEdits to whatever the newly selected algorithm needs.
+    */
+    void ondataIsBinary_triggered( bool dataIsBinary );
+};
+
+#endif // MAINWINDOW_H