qtextorientationwidget.h

Go to the documentation of this file.

/*
        Copyright 2006-2020 The QElectroTech Team
        This file is part of QElectroTech.
        
        QElectroTech is free software: you can redistribute it and/or modify
        it under the terms of the GNU General Public License as published by
        the Free Software Foundation, either version 2 of the License, or
        (at your option) any later version.
        
        QElectroTech is distributed in the hope that it will be useful,
        but WITHOUT ANY WARRANTY; without even the implied warranty of
        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        GNU General Public License for more details.
        
        You should have received a copy of the GNU General Public License
        along with QElectroTech.  If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef Q_TEXT_ORIENTATION_WIDGET_H
#define Q_TEXT_ORIENTATION_WIDGET_H
#include <QtWidgets>
class QTextOrientationWidget : public QWidget {
        Q_OBJECT
        
        // constructors, destructor
        public:
        QTextOrientationWidget(QWidget * = nullptr);
        ~QTextOrientationWidget() override;
        private:
        QTextOrientationWidget(const QTextOrientationWidget &);
        QTextOrientationWidget &operator=(const QTextOrientationWidget &);
        
        // methods
        public:
        double orientation() const;
        void setFont(const QFont &);
        QFont font() const;
        void setDisplayText(bool);
        bool textDisplayed() const;
        void setUsableTexts(const QStringList &);
        QStringList usableTexts() const;
        bool isReadOnly() const;
        void setReadOnly(bool);
        
        public slots:
        void setOrientation(const double &);
        
        protected:
        QSize sizeHint () const override;
        int heightForWidth(int) const override;
        void paintEvent(QPaintEvent *) override;
        void mouseMoveEvent(QMouseEvent *) override;
        void mouseReleaseEvent(QMouseEvent *) override;
        
        signals:
        void orientationChanged(double);
        
        // attributes
        private:
        double squares_interval_;
        double current_orientation_;
        bool display_text_;
        QFont text_font_;
        QHash<QString, qreal> text_size_hash_;
        double highlight_angle_;
        bool must_highlight_angle_;
        bool read_only_;
        
        private:
        QString getMostUsableStringForRadius(const qreal &);
        void generateTextSizeHash();
        bool positionIsASquare(const QPointF &, double * = nullptr);
};
#endif