mirror of
https://github.com/jkriege2/JKQtPlotter.git
synced 2024-11-16 02:25:50 +08:00
f83a3468b1
- new options interface for JKQTMathText::parse() - breaking: removed JKQTMathtext::unparsedNode - several minor improvements
431 lines
15 KiB
C++
431 lines
15 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/jkqtmathtextmatrixnode.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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JKQTMathTextMatrixNode::JKQTMathTextMatrixNode(JKQTMathText* _parent, const QVector<QVector<JKQTMathTextNode *> > &children, const QString &columnSpec):
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JKQTMathTextMultiChildNode(_parent),
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verticalLineRHSColumn(),
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verticalLineLeft(LTnone),
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horizontalLineBottomRow(),
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horizontalLineTop(LTnone),
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columns(0),
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lines(0)
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{
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setChildren(children);
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parseColumnSpec(columnSpec);
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}
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JKQTMathTextMatrixNode::JKQTMathTextMatrixNode(JKQTMathText *_parent, const QString &columnSpec):
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JKQTMathTextMultiChildNode(_parent),
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verticalLineRHSColumn(),
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verticalLineLeft(LTnone),
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horizontalLineBottomRow(),
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horizontalLineTop(LTnone),
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columns(0),
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lines(0)
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{
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parseColumnSpec(columnSpec);
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}
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JKQTMathTextMatrixNode::~JKQTMathTextMatrixNode() {
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clearChildrenImpl(true);
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}
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void JKQTMathTextMatrixNode::setChildren(const QVector<QVector<JKQTMathTextNode *> > &children)
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{
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this->lines=children.size();
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this->columns=0;
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for (int i=0; i<children.size(); i++) {
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if (children[i].size()>this->columns) this->columns=children[i].size();
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}
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this->children=children;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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children[i].operator[](j)->setParentNode(this);
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}
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}
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}
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void JKQTMathTextMatrixNode::setRowBottomLine(int col, LineType line)
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{
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horizontalLineBottomRow[col]=line;
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}
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void JKQTMathTextMatrixNode::setTopLine(LineType line)
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{
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horizontalLineTop=line;
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}
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QString JKQTMathTextMatrixNode::getTypeName() const
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{
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return "MTmatrixNode";
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}
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bool JKQTMathTextMatrixNode::toHtml(QString &/*html*/, JKQTMathTextEnvironment /*currentEv*/, JKQTMathTextEnvironment /*defaultEv*/)
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{
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return false;
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}
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QVector<QVector<JKQTMathTextNode *> > JKQTMathTextMatrixNode::getChildrenMatrix() const {
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return this->children;
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}
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int JKQTMathTextMatrixNode::getColumns() const {
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return this->columns;
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}
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int JKQTMathTextMatrixNode::getLines() const {
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return this->lines;
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}
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QList<JKQTMathTextNode *> JKQTMathTextMatrixNode::getChildren()
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{
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QList<JKQTMathTextNode *> l;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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l<<children[i].at(j);
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}
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}
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return l;
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}
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int JKQTMathTextMatrixNode::childCount() const
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{
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int s=0;
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for (int i=0; i<children.size(); i++) {
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s+=children[i].size();
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}
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return s;
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}
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void JKQTMathTextMatrixNode::clearChildren(bool deleteChildren)
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{
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clearChildrenImpl(deleteChildren);
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}
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void JKQTMathTextMatrixNode::clearChildrenImpl(bool deleteChildren)
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{
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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if (deleteChildren) delete children[i].at(j);
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}
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}
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children.clear();
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}
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void JKQTMathTextMatrixNode::deleteChild(int nn)
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{
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int n=0;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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if (n==nn) {
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delete children[i].operator[](j);
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children[i].operator[](j)=new JKQTMathTextNoopNode(parentMathText);
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children[i].operator[](j)->setParentNode(this);
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return ;
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}
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n++;
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}
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}
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return ;
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}
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JKQTMathTextNode *JKQTMathTextMatrixNode::getChild(int nn)
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{
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int n=0;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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if (n==nn) {
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return children[i].at(j);
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}
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n++;
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}
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}
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return nullptr;
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}
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const JKQTMathTextNode *JKQTMathTextMatrixNode::getChild(int nn) const
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{
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int n=0;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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if (n==nn) {
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return children[i].at(j);
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}
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n++;
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}
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}
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return nullptr;
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}
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JKQTMathTextNode *JKQTMathTextMatrixNode::replaceChild(int nn, JKQTMathTextNode *newChild)
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{
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int n=0;
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for (int i=0; i<children.size(); i++) {
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for (int j=0; j<children[i].size(); j++) {
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if (n==nn) {
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JKQTMathTextNode* old= children[i].at(j);
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children[i].operator[](j)=newChild;
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return old;
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}
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n++;
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}
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}
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return nullptr;
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}
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void JKQTMathTextMatrixNode::setDrawBoxes(bool draw)
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{
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this->drawBoxes=draw;
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for (int i=0; i<lines; i++) {
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for (int j=0; j<children[i].size(); j++) {
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children[i].at(j)->setDrawBoxes(draw);
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}
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}
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}
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void JKQTMathTextMatrixNode::drawVLine(QPainter &painter, double x, double y, double height, LineType lt, double linewidth, double linewidthHeavy, QColor color, double doublelineseparation)
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{
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if (lt==LTnone) return;
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QPen p(color, linewidth, Qt::SolidLine);
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if (lt==LTdashed || lt==LTdoubleDashed) p.setStyle(Qt::DashLine);
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if (lt==LTheavyline) p.setWidth(linewidthHeavy);
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painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
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painter.setPen(p);
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if (lt==LTline || lt==LTdashed || lt==LTheavyline) {
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painter.drawLine(QPointF(x,y), QPointF(x,y+height));
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} else if (lt==LTdoubleline || lt==LTdoubleDashed) {
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painter.drawLine(QPointF(x-doublelineseparation/2.0,y), QPointF(x-doublelineseparation/2.0,y+height));
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painter.drawLine(QPointF(x+doublelineseparation/2.0,y), QPointF(x+doublelineseparation/2.0,y+height));
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}
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}
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void JKQTMathTextMatrixNode::drawHLine(QPainter &painter, double x, double y, double width, LineType lt, double linewidth, double linewidthHeavy, QColor color, double doublelineseparation)
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{
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if (lt==LTnone) return;
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QPen p(color, linewidth, Qt::SolidLine);
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if (lt==LTdashed || lt==LTdoubleDashed) p.setStyle(Qt::DashLine);
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if (lt==LTheavyline) p.setWidth(linewidthHeavy);
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painter.save(); auto __finalpaint=JKQTPFinally([&painter]() {painter.restore();});
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painter.setPen(p);
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if (lt==LTline || lt==LTdashed || lt==LTheavyline) {
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painter.drawLine(QPointF(x,y), QPointF(x+width,y));
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} else if (lt==LTdoubleline || lt==LTdoubleDashed) {
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painter.drawLine(QPointF(x,y-doublelineseparation/2.0), QPointF(x+width,y-doublelineseparation/2.0));
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painter.drawLine(QPointF(x,y+doublelineseparation/2.0), QPointF(x+width,y+doublelineseparation/2.0));
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}
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}
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void JKQTMathTextMatrixNode::parseColumnSpec(const QString &columnSpec)
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{
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int i=0;
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while (i<columnSpec.size()) {
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if (columnSpec[i]=='l') {
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columnAlignment<<MTHALeft;
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} else if (columnSpec[i]=='c') {
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columnAlignment<<MTHACentered;
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} else if (columnSpec[i]=='r') {
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columnAlignment<<MTHARight;
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} else if (columnSpec.mid(i,2)=="||") {
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if (columnAlignment.size()==0) {
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verticalLineLeft=LTdoubleline;
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} else {
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verticalLineRHSColumn[columnAlignment.size()-1]=LTdoubleline;
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}
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i++;
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} else if (columnSpec.mid(i,2)=="::") {
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if (columnAlignment.size()==0) {
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verticalLineLeft=LTdoubleDashed;
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} else {
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verticalLineRHSColumn[columnAlignment.size()-1]=LTdoubleDashed;
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}
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i++;
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} else if (columnSpec.mid(i,1)=="|") {
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if (columnAlignment.size()==0) {
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verticalLineLeft=LTline;
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} else {
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verticalLineRHSColumn[columnAlignment.size()-1]=LTline;
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}
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} else if (columnSpec.mid(i,1)==":") {
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if (columnAlignment.size()==0) {
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verticalLineLeft=LTdashed;
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} else {
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verticalLineRHSColumn[columnAlignment.size()-1]=LTdashed;
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}
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} else if (!columnSpec[i].isSpace()){
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parentMathText->addToErrorList(QString("array spec has unknown character '%1' (full spec was '%2')").arg(columnSpec[i]).arg(columnSpec));
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}
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i++;
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}
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}
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JKQTMathTextMatrixNode::LayoutInfo::LayoutInfo():
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JKQTMathTextNodeSize(), colwidth(), rowheight()
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{
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}
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JKQTMathTextMatrixNode::LayoutInfo JKQTMathTextMatrixNode::calcLayout(QPainter &painter, const JKQTMathTextEnvironment ¤tEv) const
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{
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LayoutInfo l;
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const QFontMetricsF fm(currentEv.getFont(parentMathText), painter.device());
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JKQTMathTextEnvironment ev1=currentEv;
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const double xheight=fm.strikeOutPos();
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const double xwidth=fm.boundingRect("x").width();
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const double XPadding=parentMathText->getMatrixXPaddingFactor()*xwidth;
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const double YPadding=parentMathText->getMatrixYPaddingFactor()*xwidth;
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const double XSeparation=parentMathText->getMatrixXSeparationFactor()*xwidth;
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const double YSeparation=parentMathText->getMatrixYSeparationFactor()*xwidth;
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l.colwidth.resize(columns); for (int i=0; i<columns; i++) l.colwidth[i]=0;
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l.rowheight.resize(lines);
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l.rowascent.resize(lines);
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l.cellwidth.resize(lines);
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l.leftPadding=(verticalLineLeft==LTnone)?0:XPadding;
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l.rightPadding=(verticalLineRHSColumn.value(columns-1,LTnone)==LTnone)?0:XPadding;
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l.topPadding=(horizontalLineTop==LTnone)?0:YPadding;
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l.bottomPadding=(horizontalLineBottomRow.value(lines-1,LTnone)==LTnone)?0:YPadding;
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for (int ll=0; ll<lines; ll++) l.cellwidth[ll]=QVector<double>(columns, 0.0);
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QVector<double> rowdescent;
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rowdescent.resize(lines);
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for (int i=0; i<lines; i++) {
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l.rowheight[i]=0;
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l.rowascent[i]=0;
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rowdescent[i]=0;
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for (int j=0; j<children[i].size(); j++) {
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const JKQTMathTextNodeSize cs=children[i].at(j)->getSize(painter, ev1);
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l.cellwidth[i].operator[](j)=cs.width;
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l.colwidth[j]=qMax(l.colwidth[j], cs.width);
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l.rowascent[i]=qMax(l.rowascent[i], cs.baselineHeight);
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rowdescent[i]=qMax(rowdescent[i], cs.getDescent());
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}
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l.rowheight[i]=l.rowascent[i]+rowdescent[i];
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}
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l.overallHeight=(lines-1)*YSeparation+l.topPadding+l.bottomPadding;
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l.width=(columns-1)*XSeparation+l.leftPadding+l.rightPadding;
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for (int i=0; i<columns; i++) l.width=l.width+l.colwidth[i];
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for (int i=0; i<lines; i++) l.overallHeight=l.overallHeight+l.rowheight[i];
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l.baselineHeight=l.overallHeight/2.0+xheight;
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l.strikeoutPos=xheight;
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return l;
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}
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void JKQTMathTextMatrixNode::getSizeInternal(QPainter& painter, JKQTMathTextEnvironment currentEv, double& width, double& baselineHeight, double& overallHeight, double& strikeoutPos, const JKQTMathTextNodeSize* /*prevNodeSize*/) {
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const LayoutInfo l=calcLayout(painter, currentEv);
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width=l.width;
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overallHeight=l.overallHeight;
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baselineHeight=l.baselineHeight;
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strikeoutPos=l.strikeoutPos;
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}
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double JKQTMathTextMatrixNode::draw(QPainter& painter, double x, double y, JKQTMathTextEnvironment currentEv, const JKQTMathTextNodeSize* /*prevNodeSize*/) {
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doDrawBoxes(painter, x, y, currentEv);
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const QFontMetricsF fm(currentEv.getFont(parentMathText), painter.device());
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JKQTMathTextEnvironment ev1=currentEv;
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const LayoutInfo l=calcLayout(painter, currentEv);
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const double xheight=fm.strikeOutPos();
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const double xwidth=fm.boundingRect("x").width();
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//const double XPadding=parentMathText->getMatrixXPaddingFactor()*xwidth;
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//const double YPadding=parentMathText->getMatrixYPaddingFactor()*xwidth;
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const double XSeparation=parentMathText->getMatrixXSeparationFactor()*xwidth;
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const double YSeparation=parentMathText->getMatrixYSeparationFactor()*xwidth;
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const double yTop=y-l.baselineHeight+l.topPadding;
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const double xLeft=x+l.leftPadding;
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const double linewidth=parentMathText->getMatrixLinewidthThinFactor()*fm.lineWidth();
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const double linewidthThick=parentMathText->getMatrixLinewidthHeavyFactor()*fm.lineWidth();
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const double lineSeparation=parentMathText->getMatrixLineSeparationFactor()*fm.lineWidth();
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double leftlineX=xLeft-l.leftPadding/2.0;
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double rightlineX=x+l.width-l.rightPadding/2.0;
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double toplineY=yTop-l.topPadding/2.0;
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double bottomlineY=y+l.getDescent()-l.bottomPadding/2;
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if (verticalLineLeft==LTdoubleline || verticalLineLeft==LTdoubleDashed) leftlineX-=linewidth;
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if (horizontalLineTop==LTdoubleline || horizontalLineTop==LTdoubleDashed) toplineY-=linewidth;
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if (verticalLineRHSColumn.value(lines-1, LTnone)==LTdoubleline || verticalLineRHSColumn.value(lines-1, LTnone)==LTdoubleDashed) rightlineX+=linewidth;
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if (horizontalLineBottomRow.value(columns-1, LTnone)==LTdoubleline || horizontalLineBottomRow.value(columns-1, LTnone)==LTdoubleDashed) bottomlineY+=linewidth;
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double xx;
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double yy=yTop;
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if (lines>0) yy=yy+l.rowascent[0];
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for (int i=0; i<lines; i++) {
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xx=xLeft;
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for (int j=0; j<children[i].size(); j++) {
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const double cw=l.getCellwidth(i, j);
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double xoffset=0;
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if (columnAlignment.value(j, MTHALeft)==MTHACentered) xoffset=(l.colwidth[j]-cw)/2.0;
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else if (columnAlignment.value(j, MTHALeft)==MTHARight) xoffset=(l.colwidth[j]-cw);
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children[i].at(j)->draw(painter, xx+xoffset, yy, ev1);
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xx=xx+l.colwidth[j]+XSeparation;
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if (i==0 && j<columns-1) drawVLine(painter, xx-XSeparation/2.0, toplineY, bottomlineY-toplineY, verticalLineRHSColumn.value(j, LTnone), linewidth, linewidthThick, currentEv.color, lineSeparation);
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}
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if (i<lines-1) {
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double yline=yy+(l.rowheight[i]-l.rowascent[i])+YSeparation/2.0;
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yy=yline+YSeparation/2.0+l.rowascent[i+1];
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drawHLine(painter, leftlineX, yline, rightlineX-leftlineX, horizontalLineBottomRow.value(i, LTnone), linewidth, linewidthThick, currentEv.color, lineSeparation);
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}
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}
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drawVLine(painter, leftlineX, toplineY, bottomlineY-toplineY, verticalLineLeft, linewidth, linewidthThick, currentEv.color, lineSeparation);
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drawVLine(painter, rightlineX, toplineY, bottomlineY-toplineY, verticalLineRHSColumn.value(columns-1, LTnone), linewidth, linewidthThick, currentEv.color, lineSeparation);
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drawHLine(painter, leftlineX, toplineY, rightlineX-leftlineX, verticalLineLeft, linewidth, linewidthThick, currentEv.color, lineSeparation);
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drawHLine(painter, leftlineX, bottomlineY, rightlineX-leftlineX, horizontalLineBottomRow.value(lines-1, LTnone), linewidth, linewidthThick, currentEv.color, lineSeparation);
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return x+l.width;
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}
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