File indexing completed on 2022-12-06 18:52:33

0001 /*
0002     KBruch - line edit used for entering prime factors
0003     SPDX-FileCopyrightText: 2011 Sebastian Stein <seb.kde@hpfsc.de>
0004 
0005     SPDX-License-Identifier: GPL-2.0-or-later
0006 */
0007 
0008 #ifndef PRIMEFACTORSLINEEDIT_H
0009 #define PRIMEFACTORSLINEEDIT_H
0010 
0011 #include <QLineEdit>
0012 #include <QKeyEvent>
0013 
0014 class QString;
0015 
0016 /**
0017  * line edit used for entering prime factors
0018  * based on KRestrictedLine class
0019  *
0020  * \author Sebastian Stein
0021  */
0022 class PrimeFactorsLineEdit : public QLineEdit
0023 {
0024     Q_OBJECT
0025 
0026 public:
0027     /** constructor */
0028     explicit PrimeFactorsLineEdit(QWidget* parent = nullptr);
0029 
0030     /** destructor */
0031     ~PrimeFactorsLineEdit() override;
0032 
0033     /** return the factors entered */
0034     QStringList getFactors() const;
0035 
0036     /** called when the text in QLineEdit's content changes */
0037     void textHasChanged(const QString &text);
0038 
0039 Q_SIGNALS:
0040     /** emitted when QLineEdit's content changes and it's correct
0041         itIs is true if the content is correct otherwise.
0042      */
0043     void contentIsRight(bool itIs);
0044 
0045 private:
0046     /** will content the factor the application will used:
0047       * 2, 3, 5, 7, 11, 13, 17, 19 */
0048     QStringList m_usedFactors;
0049     /** the factors entered in the QLineEdit */
0050     QStringList m_theFactors;
0051 
0052     /** will check if the QLineEdit's content is right */
0053     bool checkCorrectness(const QString &text);
0054     /** will check if every factors' element is actually a factor */
0055     bool areFactors(const QStringList &factors);
0056 
0057     /** reimplement keyPressEvent inherited from QWidget */
0058     void keyPressEvent(QKeyEvent * event) override;
0059 };
0060 
0061 #endif // PRIMEFACTORSLINEEDIT_H