mirror of
https://github.com/jkriege2/JKQtPlotter.git
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124 lines
5.1 KiB
C++
124 lines
5.1 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 JKQTMATHTEXTVERBATIMNODE_H
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#define JKQTMATHTEXTVERBATIMNODE_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 "jkqtmathtext/nodes/jkqtmathtexttextnode.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 verbatim (plain-text) node with support for line-breaks in the syntax tree
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* \ingroup jkqtmathtext_items
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*
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* The layout of the lines can left-aligned, right-aligned or centered.
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*
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* \image html jkqtmathtext_verticallist.png
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*
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* \image html jkqtmathtext_verticalalignment.png
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*
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* \image html jkqtmathtext_horizontalalignment.png
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*/
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class JKQTMATHTEXT_LIB_EXPORT JKQTMathTextVerbatimNode: public JKQTMathTextTextBaseNode {
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public:
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explicit JKQTMathTextVerbatimNode(JKQTMathText* parent, const QString& text, bool visibleWhitespace=false, JKQTMathTextHorizontalAlignment _alignment=MTHALeft, double _linespacingFactor=1.0, JKQTMathTextVerticalOrientation _verticalOrientation=MTVOFirstLine, size_t tabSize_=4);
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/** \copydoc JKQTMathTextNode::getTypeName() */
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virtual QString getTypeName() const override;
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/** \copydoc alignment */
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JKQTMathTextHorizontalAlignment getAlignment() const;
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/** \copydoc verticalOrientation */
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JKQTMathTextVerticalOrientation getVerticalOrientation() const;
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/** \copydoc lineSpacingFactor */
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double getLineSpacingFactor() const;
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/** \copydoc visibleWhitespace */
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bool getVisibleWhitespace() const;
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/** \copydoc tabSize */
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size_t getTabSize() const;
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/** \copydoc JKQTMathTextNode::draw() */
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virtual double draw(QPainter& painter, double x, double y, JKQTMathTextEnvironment currentEv) const override;
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/** \copydoc JKQTMathTextNode::toHtml() */
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virtual bool toHtml(QString& html, JKQTMathTextEnvironment currentEv, JKQTMathTextEnvironment defaultEv) const override;
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protected:
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/** \brief alignment scheme used to lay out all lines
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*
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* \image html jkqtmathtext_horizontalalignment.png
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*/
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JKQTMathTextHorizontalAlignment alignment;
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/** \brief spacing of the separate lines, as factor of the default line-spacing [Default: 1].
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*
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* This property can be used to move the lines closer together or farther apart.
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*
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* \image html jkqtmathtext_verticallist.png
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*/
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double lineSpacingFactor;
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/** \brief vertical orientation of the baseline of the whole block (with respect to the single lines)
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*
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* \image html jkqtmathtext_verticalorientation.png
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*/
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JKQTMathTextVerticalOrientation verticalOrientation;
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/** \brief when \c true, whitespaces are displayed with a visible character */
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bool visibleWhitespace;
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/** \brief number of whitespaces, each tab character stands for */
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size_t tabSize;
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/** \copydoc JKQTMathTextNode::getSizeInternal() */
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virtual JKQTMathTextNodeSize getSizeInternal(QPainter& painter, JKQTMathTextEnvironment currentEv) const override;
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/** \brief sets all necessary settings in \a currentEv for drawing this node */
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virtual void transformEnvironment(JKQTMathTextEnvironment& currentEv) const;
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/** \brief describes the layout of the whole node */
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struct LayoutInfo: public JKQTMathTextNodeSize {
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LayoutInfo();
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/** \brief the text from JKQTMathTextVerbatimNode::text, split into lines */
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QStringList lines;
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/** \brief drawing position for each line */
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QList<QPointF> X;
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};
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/** \brief calclates the layout of the whole block/node
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*
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* \note This function does NOT call transformEnvironment();
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* it has to be called before calling this!
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*/
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LayoutInfo calcLayout(QPainter& painter, const JKQTMathTextEnvironment& currentEv) const;
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/** \brief transforms the \a text before sizing/drawing (may e.g. exchange special letters for other unicode symbols etc.) */
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virtual QString textTransform(const QString& text, const JKQTMathTextEnvironment& currentEv) const override;
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};
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#endif // JKQTMATHTEXTVERBATIMNODE_H
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