125 lines
4.7 KiB
C++
125 lines
4.7 KiB
C++
#include "vabstracttool.h"
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#include <QDebug>
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VAbstractTool::VAbstractTool(VDomDocument *doc, VContainer *data, qint64 id, QObject *parent):
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VDataTool(data, parent), doc(doc), id(id), baseColor(Qt::black), currentColor(Qt::black){
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this->doc = doc;
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this->id = id;
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connect(this, &VAbstractTool::toolhaveChange, this->doc, &VDomDocument::haveLiteChange);
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connect(this->doc, &VDomDocument::FullUpdateFromFile, this, &VAbstractTool::FullUpdateFromFile);
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connect(this, &VAbstractTool::FullUpdateTree, this->doc, &VDomDocument::FullUpdateTree);
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}
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void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qint64 &value){
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QDomAttr domAttr = doc->createAttribute(name);
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domAttr.setValue(QString().setNum(value));
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domElement.setAttributeNode(domAttr);
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}
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void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qint32 &value){
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QDomAttr domAttr = doc->createAttribute(name);
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domAttr.setValue(QString().setNum(value));
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domElement.setAttributeNode(domAttr);
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}
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void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qreal &value){
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QDomAttr domAttr = doc->createAttribute(name);
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domAttr.setValue(QString().setNum(value));
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domElement.setAttributeNode(domAttr);
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}
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void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const QString &value){
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QDomAttr domAttr = doc->createAttribute(name);
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domAttr.setValue(value);
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domElement.setAttributeNode(domAttr);
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}
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VAbstractTool::~VAbstractTool(){
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}
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QPointF VAbstractTool::LineIntersectRect(QRectF rec, QLineF line){
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qreal x1, y1, x2, y2;
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rec.getCoords(&x1, &y1, &x2, &y2);
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QPointF point;
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QLineF::IntersectType type = line.intersect(QLineF(QPointF(x1,y1), QPointF(x1,y2)),&point);
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if ( type == QLineF::BoundedIntersection ){
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return point;
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}
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type = line.intersect(QLineF(QPointF(x1,y1), QPointF(x2,y1)),&point);
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if ( type == QLineF::BoundedIntersection ){
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return point;
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}
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type = line.intersect(QLineF(QPointF(x1,y2), QPointF(x2,y2)),&point);
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if ( type == QLineF::BoundedIntersection ){
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return point;
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}
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type = line.intersect(QLineF(QPointF(x2,y1), QPointF(x2,y2)),&point);
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if ( type == QLineF::BoundedIntersection ){
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return point;
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}
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Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "Немає точки перетину.");
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return point;
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}
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qint32 VAbstractTool::LineIntersectCircle(QPointF center, qreal radius, QLineF line, QPointF &p1,
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QPointF &p2){
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const qreal eps = 1e-8;
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//коефіцієнти для рівняння відрізку
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qreal a = line.p2().y() - line.p1().y();
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qreal b = line.p1().x() - line.p2().x();
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// В даному випадку не використовується.
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//qreal c = - a * line.p1().x() - b * line.p1().y();
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// проекция центра окружности на прямую
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QPointF p = ClosestPoint (line, center);
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// сколько всего решений?
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qint32 flag = 0;
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qreal d = QLineF (center, p).length();
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if (qAbs (d - radius) <= eps){
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flag = 1;
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} else {
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if (radius > d){
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flag = 2;
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} else {
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return 0;
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}
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}
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// находим расстояние от проекции до точек пересечения
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qreal k = sqrt (radius * radius - d * d);
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qreal t = QLineF (QPointF (0, 0), QPointF (b, - a)).length();
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// добавляем к проекции векторы направленные к точкам пеерсечения
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p1 = addVector (p, QPointF (0, 0), QPointF (- b, a), k / t);
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p2 = addVector (p, QPointF (0, 0), QPointF (b, - a), k / t);
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return flag;
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}
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QPointF VAbstractTool::ClosestPoint(QLineF line, QPointF p){
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QLineF lineP2pointFrom = QLineF(line.p2(), p);
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qreal angle = 180-line.angleTo(lineP2pointFrom)-90;
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QLineF pointFromlineP2 = QLineF(p, line.p2());
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pointFromlineP2.setAngle(pointFromlineP2.angle()+angle);
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QPointF point;
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QLineF::IntersectType type = pointFromlineP2.intersect(line,&point);
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if ( type == QLineF::BoundedIntersection ){
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return point;
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} else{
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if ( type == QLineF::NoIntersection || type == QLineF::UnboundedIntersection ){
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Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "Немає точки перетину.");
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return point;
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}
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}
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return point;
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}
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QPointF VAbstractTool::addVector(QPointF p, QPointF p1, QPointF p2, qreal k){
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return QPointF (p.x() + (p2.x() - p1.x()) * k, p.y() + (p2.y() - p1.y()) * k);
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}
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const VContainer *VAbstractTool::getData()const{
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return &data;
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}
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qint64 VAbstractTool::getId() const{
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return id;
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}
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