mirror of
https://github.com/jkriege2/JKQtPlotter.git
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88 lines
3.7 KiB
C++
88 lines
3.7 KiB
C++
/*
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Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
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with contributions from: Razi Alavizadeh
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This software is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License (LGPL) as published by
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the Free Software Foundation, either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License (LGPL) for more details.
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You should have received a copy of the GNU Lesser General Public License (LGPL)
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef JKQTMATHTEXTBRACENODE_H
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#define JKQTMATHTEXTBRACENODE_H
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#include "jkqtmathtext/jkqtmathtext_imexport.h"
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#include "jkqtmathtext/jkqtmathtexttools.h"
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#include "jkqtmathtext/nodes/jkqtmathtextnode.h"
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#include <QPainter>
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class JKQTMathText; // forward
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// JKQTMATHTEXT_LIB_EXPORT
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/** \brief subclass representing a brace node
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* \ingroup jkqtmathtext_items
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*
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* \image html jkqtmathtext/jkqtmathtext_bracenode_geo.png
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*/
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class JKQTMATHTEXT_LIB_EXPORT JKQTMathTextBraceNode: public JKQTMathTextSingleChildNode {
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public:
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JKQTMathTextBraceNode(JKQTMathText* parent, const QString& openbrace, const QString& closebrace, JKQTMathTextNode* child, bool showOpeningBrace=true, bool showClosingBrace=true);
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virtual ~JKQTMathTextBraceNode() override;
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/** \copydoc JKQTMathTextNode::draw() */
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virtual double draw(QPainter& painter, double x, double y, JKQTMathTextEnvironment currentEv, const JKQTMathTextNodeSize* prevNodeSize=nullptr) override;
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/** \copydoc JKQTMathTextNode::toHtml() */
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virtual bool toHtml(QString& html, JKQTMathTextEnvironment currentEv, JKQTMathTextEnvironment defaultEv) override;
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/** \copydoc JKQTMathTextNode::getTypeName() */
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virtual QString getTypeName() const override;
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/** \copydoc openbrace */
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QString getOpenbrace() const;
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/** \copydoc closebrace */
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QString getClosebrace() const;
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/** \copydoc showRightBrace */
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bool getShowClosingBrace() const;
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/** \copydoc showOpeningBrace */
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bool getShowOpeningBrace() const;
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protected:
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/** \copydoc JKQTMathTextNode::getSizeInternal()
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*
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* \note This function internally calls getSizeInternalAndBrace() and returns part of its results.
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*/
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virtual void getSizeInternal(QPainter& painter, JKQTMathTextEnvironment currentEv, double& width, double& baselineHeight, double& overallHeight, double& strikeoutPos, const JKQTMathTextNodeSize* prevNodeSize=nullptr) override;
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/** calculates the size of this node (also returned by getSizeInternal() ) and of the brace */
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void getSizeInternalAndBrace(QPainter& painter, JKQTMathTextEnvironment currentEv, double& width, double& baselineHeight, double& overallHeight, double& strikeoutPos, double& bracewidth, double&braceheight, const JKQTMathTextNodeSize* prevNodeSize=nullptr);
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/**\brief opening brace */
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QString openbrace;
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/**\brief closing brace */
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QString closebrace;
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/**\brief if \c true, the closing (right hand side) brace is drawn */
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bool showClosingBrace;
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/**\brief if \c true, the opening (left hand side) brace is drawn */
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bool showOpeningBrace;
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/** \brief calculate the width of the brace */
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void getBraceSize(QPainter& painter, JKQTMathTextEnvironment currentEv, double baselineHeight, double overallHeight, double& bracewidth, double& braceheight) const;
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};
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#endif // JKQTMATHTEXTBRACENODE_H
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