JKQtPlotter/lib/jkqtmathtext/nodes/jkqtmathtextlistnode.h

/*
    Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
    with contributions from: Razi Alavizadeh

    

    This software is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License (LGPL) as published by
    the Free Software Foundation, either version 2.1 of the License, or
    (at your option) any later version.

    This program 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 Lesser General Public License (LGPL) for more details.

    You should have received a copy of the GNU Lesser General Public License (LGPL)
    along with this program.  If not, see <http://www.gnu.org/licenses/>.
*/




#ifndef JKQTMATHTEXTLISTNODE_H
#define JKQTMATHTEXTLISTNODE_H
#include "jkqtmathtext/jkqtmathtext_imexport.h"
#include "jkqtmathtext/jkqtmathtexttools.h"
#include "jkqtmathtext/nodes/jkqtmathtextnode.h"
#include <QPainter>

class JKQTMathText; // forward
// JKQTMATHTEXT_LIB_EXPORT


/** \brief subclass representing a list of nodes in the syntax tree
 *  \ingroup jkqtmathtext_items
 */
class JKQTMATHTEXT_LIB_EXPORT JKQTMathTextListNode: public JKQTMathTextNode {
    public:
        explicit JKQTMathTextListNode(JKQTMathText* parent);
        virtual ~JKQTMathTextListNode() override;
        /** \copydoc JKQTMathTextNode::getTypeName() */
        virtual QString getTypeName() const override;
        /** \copydoc JKQTMathTextNode::draw() */
        virtual double draw(QPainter& painter, double x, double y, JKQTMathTextEnvironment currentEv, const JKQTMathTextNodeSize* prevNodeSize=nullptr) override;
        /** \brief add a child node */
        void addNode(JKQTMathTextNode* n);
        /** \copydoc JKQTMathTextNode::toHtml() */
        virtual bool toHtml(QString& html, JKQTMathTextEnvironment currentEv, JKQTMathTextEnvironment defaultEv) override;
        /** \copydoc JKQTMathTextNode::setDrawBoxes() */
        virtual void setDrawBoxes(bool draw) override;
        /** \copydoc nodes */ 
        QList<JKQTMathTextNode*> getNodes() const;
        /** \brief return number of children */
        int count() const;
        /** \brief return number of children */
        int size() const;
        /** \brief clear all children, deleting them if \a deleteChildren==true */
        void clearChildren(bool deleteChildren=true);
        /** \brief return i-th child node */
        JKQTMathTextNode* child(int i);
        /** \brief return i-th child node */
        const JKQTMathTextNode* child(int i) const;
        /** \brief simplifies the given list-node, i.e. if it contains one child only, the child is returned and the list node destroyed, otherwise the list node \a nl is returned */
        static JKQTMathTextNode* simplyfyListNode(JKQTMathTextListNode* nl);
    protected:
        /** \copydoc JKQTMathTextNode::getSizeInternal() */
        virtual void getSizeInternal(QPainter& painter, JKQTMathTextEnvironment currentEv, double& width, double& baselineHeight, double& overallHeight, double& strikeoutPos, const JKQTMathTextNodeSize* prevNodeSize=nullptr) override;
        QList<JKQTMathTextNode*> nodes;
        /** \brief the instructions in this can have the sub-script/superscript set below/above, not besides the node */
        static QSet<QString> subsupOperations;
};

#endif // JKQTMATHTEXTLISTNODE_H