mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-11-16 02:25:50 +08:00
116 lines
3.9 KiB
C++
116 lines
3.9 KiB
C++
/*
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Copyright (c) 2008-2022 Jan W. Krieger (<jan@jkrieger.de>)
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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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#include "jkqtmathtext/nodes/jkqtmathtextnode.h"
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#include "jkqtmathtext/jkqtmathtexttools.h"
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#include "jkqtmathtext/jkqtmathtext.h"
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#include "jkqtcommon/jkqtpcodestructuring.h"
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#include "jkqtcommon/jkqtpstringtools.h"
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#include <cmath>
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#include <QFontMetricsF>
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#include <QDebug>
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#include <QFontDatabase>
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#include <QFontInfo>
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#include <QApplication>
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#include <QFont>
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// --------------------------------------------------------------------------------------------------
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// -- implementation of the JKQTMathTextNode's methods
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// --------------------------------------------------------------------------------------------------
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JKQTMathTextNode::JKQTMathTextNode(JKQTMathText* parent) {
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this->parent=parent;
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drawBoxes=false;
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}
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JKQTMathTextNode::~JKQTMathTextNode()
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= default;
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void JKQTMathTextNode::getSize(QPainter &painter, JKQTMathTextEnvironment currentEv, double &width, double &baselineHeight, double &overallHeight, double &strikeoutPos, const JKQTMathTextNodeSize* prevNodeSize)
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{
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double w=width, b=baselineHeight, o=overallHeight, s=strikeoutPos;
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getSizeInternal(painter, currentEv, w, b, o, s, prevNodeSize);
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if (w<1e5) width=w;
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if (b<1e5) baselineHeight=b;
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if (o<1e5) overallHeight=o;
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if (s<1e5) strikeoutPos=s;
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}
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double JKQTMathTextNode::getNonItalicXCorretion(QPainter &painter, double width_potentiallyitalic, const JKQTMathTextEnvironment &ev_potentiallyitalic, JKQTMathTextNode* child) const
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{
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double italic_xcorrection=0.0;
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if (ev_potentiallyitalic.italic) {
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JKQTMathTextEnvironment ev_nonitalic=ev_potentiallyitalic;
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ev_nonitalic.italic=false;
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double width_nonitalic=0, baselineHeight_nonitalic=0, overallHeight_nonitalic=0, strikeoutPos_nonitalic=0;
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child->getSize(painter, ev_nonitalic, width_nonitalic, baselineHeight_nonitalic, overallHeight_nonitalic, strikeoutPos_nonitalic);
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italic_xcorrection=width_potentiallyitalic-width_nonitalic;
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}
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return italic_xcorrection;
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}
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bool JKQTMathTextNode::toHtml(QString &/*html*/, JKQTMathTextEnvironment /*currentEv*/, JKQTMathTextEnvironment /*defaultEv*/) {
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return false;
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}
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bool JKQTMathTextNode::getDrawBoxes() const {
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return this->drawBoxes;
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}
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void JKQTMathTextNode::doDrawBoxes(QPainter& painter, double x, double y, JKQTMathTextEnvironment currentEv) {
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if (drawBoxes) {
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painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
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double w, oh, bh, sp;
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getSize(painter, currentEv, w, bh, oh, sp);
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QPen p=painter.pen();
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p.setColor("lightcoral");
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p.setWidthF(0.5);
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painter.setPen(p);
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QRectF r(x, y-bh, w, oh);
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painter.drawRect(r);
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p.setColor("lightblue");
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painter.setPen(p);
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if (w>0) painter.drawLine(QLineF(x, y, x+w, y));
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p.setColor("green");
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painter.setPen(p);
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painter.drawEllipse(QRectF(x-3.0,y-3.0,6.0,6.0));
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p.setColor("lightgreen");
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painter.setPen(p);
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painter.drawLine(QLineF(x-2.0, y, x+2.0, y));
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painter.drawLine(QLineF(x, y-2, x, y+2.0));
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}
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}
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void JKQTMathTextNode::setDrawBoxes(bool draw)
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{
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this->drawBoxes=draw;
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}
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QString JKQTMathTextNode::getTypeName() const
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{
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return "JKQTMathTextNode";
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}
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