Files
create/src/Mod/Sketcher/App/Constraint.cpp
2023-05-20 07:55:05 +02:00

236 lines
8.3 KiB
C++

/***************************************************************************
* Copyright (c) 2008 Jürgen Riegel <juergen.riegel@web.de> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
#include <QDateTime>
#include <cmath>
#endif
#include <Base/Reader.h>
#include <Base/Tools.h>
#include <Base/Writer.h>
#include "Constraint.h"
#include "ConstraintPy.h"
using namespace Sketcher;
using namespace Base;
TYPESYSTEM_SOURCE(Sketcher::Constraint, Base::Persistence)
Constraint::Constraint()
: Value(0.0),
Type(None),
AlignmentType(Undef),
First(GeoEnum::GeoUndef),
FirstPos(PointPos::none),
Second(GeoEnum::GeoUndef),
SecondPos(PointPos::none),
Third(GeoEnum::GeoUndef),
ThirdPos(PointPos::none),
LabelDistance(10.f),
LabelPosition(0.f),
isDriving(true),
InternalAlignmentIndex(-1),
isInVirtualSpace(false),
isActive(true)
{
// Initialize a random number generator, to avoid Valgrind false positives.
static boost::mt19937 ran;
static bool seeded = false;
if (!seeded) {
ran.seed(QDateTime::currentMSecsSinceEpoch() & 0xffffffff);
seeded = true;
}
static boost::uuids::basic_random_generator<boost::mt19937> gen(&ran);
tag = gen();
}
Constraint* Constraint::clone() const
{
return new Constraint(*this);
}
Constraint* Constraint::copy() const
{
Constraint* temp = new Constraint();
temp->Value = this->Value;
temp->Type = this->Type;
temp->AlignmentType = this->AlignmentType;
temp->Name = this->Name;
temp->First = this->First;
temp->FirstPos = this->FirstPos;
temp->Second = this->Second;
temp->SecondPos = this->SecondPos;
temp->Third = this->Third;
temp->ThirdPos = this->ThirdPos;
temp->LabelDistance = this->LabelDistance;
temp->LabelPosition = this->LabelPosition;
temp->isDriving = this->isDriving;
temp->InternalAlignmentIndex = this->InternalAlignmentIndex;
temp->isInVirtualSpace = this->isInVirtualSpace;
temp->isActive = this->isActive;
// Do not copy tag, otherwise it is considered a clone, and a "rename" by the expression engine.
return temp;
}
PyObject* Constraint::getPyObject()
{
return new ConstraintPy(new Constraint(*this));
}
Quantity Constraint::getPresentationValue() const
{
Quantity quantity;
switch (Type) {
case Distance:
case Radius:
case Diameter:
case DistanceX:
case DistanceY:
quantity.setValue(Value);
quantity.setUnit(Unit::Length);
break;
case Angle:
quantity.setValue(toDegrees<double>(Value));
quantity.setUnit(Unit::Angle);
break;
case SnellsLaw:
case Weight:
quantity.setValue(Value);
break;
default:
quantity.setValue(Value);
break;
}
QuantityFormat format = quantity.getFormat();
format.option = QuantityFormat::None;
format.format = QuantityFormat::Default;
format.precision = 6;// QString's default
quantity.setFormat(format);
return quantity;
}
unsigned int Constraint::getMemSize() const
{
return 0;
}
void Constraint::Save(Writer& writer) const
{
std::string encodeName = encodeAttribute(Name);
writer.Stream() << writer.ind() << "<Constrain "
<< "Name=\"" << encodeName << "\" "
<< "Type=\"" << (int)Type << "\" ";
if (this->Type == InternalAlignment)
writer.Stream() << "InternalAlignmentType=\"" << (int)AlignmentType << "\" "
<< "InternalAlignmentIndex=\"" << InternalAlignmentIndex << "\" ";
writer.Stream() << "Value=\"" << Value << "\" "
<< "First=\"" << First << "\" "
<< "FirstPos=\"" << (int)FirstPos << "\" "
<< "Second=\"" << Second << "\" "
<< "SecondPos=\"" << (int)SecondPos << "\" "
<< "Third=\"" << Third << "\" "
<< "ThirdPos=\"" << (int)ThirdPos << "\" "
<< "LabelDistance=\"" << LabelDistance << "\" "
<< "LabelPosition=\"" << LabelPosition << "\" "
<< "IsDriving=\"" << (int)isDriving << "\" "
<< "IsInVirtualSpace=\"" << (int)isInVirtualSpace << "\" "
<< "IsActive=\"" << (int)isActive << "\" />"
<< std::endl;
}
void Constraint::Restore(XMLReader& reader)
{
reader.readElement("Constrain");
Name = reader.getAttribute("Name");
Type = static_cast<ConstraintType>(reader.getAttributeAsInteger("Type"));
Value = reader.getAttributeAsFloat("Value");
First = reader.getAttributeAsInteger("First");
FirstPos = static_cast<PointPos>(reader.getAttributeAsInteger("FirstPos"));
Second = reader.getAttributeAsInteger("Second");
SecondPos = static_cast<PointPos>(reader.getAttributeAsInteger("SecondPos"));
if (this->Type == InternalAlignment) {
AlignmentType = static_cast<InternalAlignmentType>(
reader.getAttributeAsInteger("InternalAlignmentType"));
if (reader.hasAttribute("InternalAlignmentIndex"))
InternalAlignmentIndex = reader.getAttributeAsInteger("InternalAlignmentIndex");
}
else {
AlignmentType = Undef;
}
// read the third geo group if present
if (reader.hasAttribute("Third")) {
Third = reader.getAttributeAsInteger("Third");
ThirdPos = static_cast<PointPos>(reader.getAttributeAsInteger("ThirdPos"));
}
// Read the distance a constraint label has been moved
if (reader.hasAttribute("LabelDistance"))
LabelDistance = (float)reader.getAttributeAsFloat("LabelDistance");
if (reader.hasAttribute("LabelPosition"))
LabelPosition = (float)reader.getAttributeAsFloat("LabelPosition");
if (reader.hasAttribute("IsDriving"))
isDriving = reader.getAttributeAsInteger("IsDriving") ? true : false;
if (reader.hasAttribute("IsInVirtualSpace"))
isInVirtualSpace = reader.getAttributeAsInteger("IsInVirtualSpace") ? true : false;
if (reader.hasAttribute("IsActive"))
isActive = reader.getAttributeAsInteger("IsActive") ? true : false;
}
void Constraint::substituteIndex(int fromGeoId, int toGeoId)
{
if (this->First == fromGeoId) {
this->First = toGeoId;
}
if (this->Second == fromGeoId) {
this->Second = toGeoId;
}
if (this->Third == fromGeoId) {
this->Third = toGeoId;
}
}
std::string Constraint::typeToString(ConstraintType type)
{
return type2str[type];
}
std::string Constraint::internalAlignmentTypeToString(InternalAlignmentType alignment)
{
return internalAlignmentType2str[alignment];
}