cryptohelper.cpp

#include "cryptohelper.h"

CryptoHelper::CryptoHelper(QObject *parent) :
    QObject(parent)
{
}

QString CryptoHelper::pre(QString text)
{
    text = text.toLower();
    for(int i = 0; i < text.length(); i++)
    {
        if(!alphabet.contains(text[i]))
        {
            text.remove(text[i]);
            i--;
        }
    }
    return text;
}

QString CryptoHelper::preW(QString text)
{
    QString a = alphabet + extAlphabet;
    text = text.toLower();
    for(int i = 0; i < text.length(); i++)
    {
        if(!a.contains(text[i]))
            text.remove(text[i]);
    }
    return text;
}

QString CryptoHelper::post(QString text)
{
    for(int i = CryptoHelper::tokenLength; i < text.length(); i += CryptoHelper::tokenLength + 1)
        text.insert(i, " ");
    return text;
}

bool CryptoHelper::isUniq(QString text)
{
    QString key;
    for(int i = 0; i < text.length(); i++)
        if(key.contains(text[i]))
            return false;
        else
            key += text[i];
    return true;
}

QString CryptoHelper::leftRotate(QString text, int count)
{
    QChar c;
    for(int j = 0; j < count; j++)
    {
        c = text[0];
        for(int i = 0; i < text.length() - 1; i++)
            text[i] = text[i + 1];
        text[text.length() - 1] = c;
    }
    return text;
}

QString CryptoHelper::rightRotate(QString text, int count)
{
    QChar c;
    for(int j = 0; j < count; j++)
    {
        c = text[text.length() - 1];
        for(int i = text.length() - 1; i != 0 ; i--)
            text[i] = text[i - 1];
        text[0] = c;
    }
    return text;
}

QPair<int, int> CryptoHelper::tableSize(int alphabetLength)
{
    int a = qSqrt(alphabetLength);
    while(alphabetLength % a != 0)
    {
        a--;
    }
    return QPair<int, int>(a, alphabetLength / a);
}

QString CryptoHelper::alphabet = "";
QString CryptoHelper::extAlphabet = "";
int CryptoHelper::tokenLength = 4;
Qt::GlobalColor CryptoHelper::inCharsColor = Qt::green;
Qt::GlobalColor CryptoHelper::outCharsColor = Qt::red;
Qt::GlobalColor CryptoHelper::tableColor = Qt::black;
Qt::GlobalColor CryptoHelper::arrowColor = Qt::red;
int CryptoHelper::interval = 1000;

AbstractCipher::AbstractCipher(QWidget *parent) :
    QWidget(parent)
{
}

void AbstractCipher::encryptText()
{
}