valentina/tools/vabstracttool.cpp

146 lines
5.6 KiB
C++
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

/****************************************************************************
**
** Copyright (C) 2013 Valentina project All Rights Reserved.
**
** This file is part of Valentina.
**
** Tox is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** Tox is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with Valentina. If not, see <http://www.gnu.org/licenses/>.
**
****************************************************************************/
#include "vabstracttool.h"
#include <QDebug>
VAbstractTool::VAbstractTool(VDomDocument *doc, VContainer *data, qint64 id, QObject *parent):
VDataTool(data, parent), doc(doc), id(id), baseColor(Qt::black), currentColor(Qt::black){
this->doc = doc;
this->id = id;
connect(this, &VAbstractTool::toolhaveChange, this->doc, &VDomDocument::haveLiteChange);
connect(this->doc, &VDomDocument::FullUpdateFromFile, this, &VAbstractTool::FullUpdateFromFile);
connect(this, &VAbstractTool::FullUpdateTree, this->doc, &VDomDocument::FullUpdateTree);
}
void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qint64 &value){
QDomAttr domAttr = doc->createAttribute(name);
domAttr.setValue(QString().setNum(value));
domElement.setAttributeNode(domAttr);
}
void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qint32 &value){
QDomAttr domAttr = doc->createAttribute(name);
domAttr.setValue(QString().setNum(value));
domElement.setAttributeNode(domAttr);
}
void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const qreal &value){
QDomAttr domAttr = doc->createAttribute(name);
domAttr.setValue(QString().setNum(value));
domElement.setAttributeNode(domAttr);
}
void VAbstractTool::AddAttribute(QDomElement &domElement, const QString &name, const QString &value){
QDomAttr domAttr = doc->createAttribute(name);
domAttr.setValue(value);
domElement.setAttributeNode(domAttr);
}
VAbstractTool::~VAbstractTool(){
}
QPointF VAbstractTool::LineIntersectRect(QRectF rec, QLineF line){
qreal x1, y1, x2, y2;
rec.getCoords(&x1, &y1, &x2, &y2);
QPointF point;
QLineF::IntersectType type = line.intersect(QLineF(QPointF(x1,y1), QPointF(x1,y2)),&point);
if ( type == QLineF::BoundedIntersection ){
return point;
}
type = line.intersect(QLineF(QPointF(x1,y1), QPointF(x2,y1)),&point);
if ( type == QLineF::BoundedIntersection ){
return point;
}
type = line.intersect(QLineF(QPointF(x1,y2), QPointF(x2,y2)),&point);
if ( type == QLineF::BoundedIntersection ){
return point;
}
type = line.intersect(QLineF(QPointF(x2,y1), QPointF(x2,y2)),&point);
if ( type == QLineF::BoundedIntersection ){
return point;
}
Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "Немає точки перетину.");
return point;
}
qint32 VAbstractTool::LineIntersectCircle(QPointF center, qreal radius, QLineF line, QPointF &p1,
QPointF &p2){
const qreal eps = 1e-8;
//коефіцієнти для рівняння відрізку
qreal a = line.p2().y() - line.p1().y();
qreal b = line.p1().x() - line.p2().x();
// В даному випадку не використовується.
//qreal c = - a * line.p1().x() - b * line.p1().y();
// проекция центра окружности на прямую
QPointF p = ClosestPoint (line, center);
// сколько всего решений?
qint32 flag = 0;
qreal d = QLineF (center, p).length();
if (qAbs (d - radius) <= eps){
flag = 1;
} else {
if (radius > d){
flag = 2;
} else {
return 0;
}
}
// находим расстояние от проекции до точек пересечения
qreal k = sqrt (radius * radius - d * d);
qreal t = QLineF (QPointF (0, 0), QPointF (b, - a)).length();
// добавляем к проекции векторы направленные к точкам пеерсечения
p1 = addVector (p, QPointF (0, 0), QPointF (- b, a), k / t);
p2 = addVector (p, QPointF (0, 0), QPointF (b, - a), k / t);
return flag;
}
QPointF VAbstractTool::ClosestPoint(QLineF line, QPointF p){
QLineF lineP2pointFrom = QLineF(line.p2(), p);
qreal angle = 180-line.angleTo(lineP2pointFrom)-90;
QLineF pointFromlineP2 = QLineF(p, line.p2());
pointFromlineP2.setAngle(pointFromlineP2.angle()+angle);
QPointF point;
QLineF::IntersectType type = pointFromlineP2.intersect(line,&point);
if ( type == QLineF::BoundedIntersection ){
return point;
} else{
if ( type == QLineF::NoIntersection || type == QLineF::UnboundedIntersection ){
Q_ASSERT_X(type != QLineF::BoundedIntersection, Q_FUNC_INFO, "Немає точки перетину.");
return point;
}
}
return point;
}
QPointF VAbstractTool::addVector(QPointF p, QPointF p1, QPointF p2, qreal k){
return QPointF (p.x() + (p2.x() - p1.x()) * k, p.y() + (p2.y() - p1.y()) * k);
}
const VContainer *VAbstractTool::getData()const{
return &data;
}
qint64 VAbstractTool::getId() const{
return id;
}