mirror of
https://github.com/jkriege2/JKQtPlotter.git
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95 lines
2.8 KiB
C++
95 lines
2.8 KiB
C++
/*
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Copyright (c) 2008-2024 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 JKQTMATHTEXTNODETOOLS_H
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#define JKQTMATHTEXTNODETOOLS_H
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#include "jkqtmathtext/jkqtmathtext_imexport.h"
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class JKQTMathTextNode; // forward
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/** \brief simplifies the node \a node and the tree below it. You can put the return value in place of \a node after the call
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* \ingroup jkqtmathtext_items
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*
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* Basically this takes does the following steps (recursively):
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* - remove any JKQTMathTextHorizontalListNode that has only one child
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* .
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*/
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JKQTMATHTEXT_LIB_EXPORT JKQTMathTextNode* simplifyJKQTMathTextNode(JKQTMathTextNode* node);
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/** \brief calls simplifyJKQTMathTextNode(). In addition it tries to clear whitespace at the start and end of the tree
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* \ingroup jkqtmathtext_items
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*
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* \see simplifyJKQTMathTextNode()
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*/
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JKQTMATHTEXT_LIB_EXPORT JKQTMathTextNode* simplifyAndTrimJKQTMathTextNode(JKQTMathTextNode* node);
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/*! \brief converts a node-tree with the given \a root into a string, representing the node-tree
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\ingroup jkqtmathtext_items
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\see This method uses JKQTMathText::getTypeName()
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Here is an example output for
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\code
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$x_{1/2}=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
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\endcode
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The output looks like this:
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\verbatim
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JKQTMathTextModifiedTextPropsInstructionNode(equation)
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+--MTHorizontalListNode
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| +--JKQTMathTextTextNode(x)
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| +--MTsubscriptNode
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| | +--MTHorizontalListNode
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| | | +--JKQTMathTextTextNode(1)
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| | | +--JKQTMathTextTextNode(/)
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| | | +--JKQTMathTextTextNode(2)
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| +--JKQTMathTextSymbolNode(=)
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| +--MTfracNode
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| | +--MTHorizontalListNode
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| | | +--JKQTMathTextSymbolNode(-)
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| | | +--JKQTMathTextTextNode(b)
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| | | +--JKQTMathTextSymbolNode(pm)
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| | | +--MTsqrtNode
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| | | | +--MTHorizontalListNode
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| | | | | +--JKQTMathTextTextNode(b)
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| | | | | +--MTsuperscriptNode
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| | | | | | +--JKQTMathTextTextNode(2)
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| | | | | +--JKQTMathTextSymbolNode(-)
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| | | | | +--JKQTMathTextTextNode(4ac)
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| | +--JKQTMathTextTextNode(2a)
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\endverbatim
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*/
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JKQTMATHTEXT_LIB_EXPORT QString JKQTMathTextNodeTree2String(JKQTMathTextNode* root);
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#endif // JKQTMATHTEXTNODETOOLS_H
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