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// SPDX-FileCopyrightText: 2002 Dominique Devriese <devriese@kde.org>
// SPDX-License-Identifier: GPL-2.0-or-later
#include "object_imp_factory.h"
#include "bogus_imp.h"
#include "circle_imp.h"
#include "conic_imp.h"
#include "cubic_imp.h"
#include "line_imp.h"
#include "locus_imp.h"
#include "object_imp.h"
#include "other_imp.h"
#include "point_imp.h"
#include "text_imp.h"
#include "../misc/coordinate.h"
#include <qdom.h>
const ObjectImpFactory *ObjectImpFactory::instance()
{
static const ObjectImpFactory t;
return &t;
}
ObjectImpFactory::ObjectImpFactory()
{
}
ObjectImpFactory::~ObjectImpFactory()
{
}
static void addXYElements(const Coordinate &c, QDomElement &parent, QDomDocument &doc)
{
QDomElement xe = doc.createElement(QStringLiteral("x"));
xe.appendChild(doc.createTextNode(QString::number(c.x)));
parent.appendChild(xe);
QDomElement ye = doc.createElement(QStringLiteral("y"));
ye.appendChild(doc.createTextNode(QString::number(c.y)));
parent.appendChild(ye);
}
static void addDoubleElement(const char *name, double d, QDomElement &parent, QDomDocument &doc)
{
QDomElement e = doc.createElement(name);
e.appendChild(doc.createTextNode(QString::number(d)));
parent.appendChild(e);
}
static void addCoordinateElement(const char *name, const Coordinate &d, QDomElement &p, QDomDocument &doc)
{
QDomElement e = doc.createElement(name);
addXYElements(d, e, doc);
p.appendChild(e);
}
QString ObjectImpFactory::serialize(const ObjectImp &d, QDomElement &parent, QDomDocument &doc) const
{
if (d.inherits(IntImp::stype())) {
parent.appendChild(doc.createTextNode(QString::number(static_cast<const IntImp &>(d).data())));
return QStringLiteral("int");
} else if (d.inherits(DoubleImp::stype())) {
parent.appendChild(doc.createTextNode(QString::number(static_cast<const DoubleImp &>(d).data())));
return QStringLiteral("double");
} else if (d.inherits(StringImp::stype())) {
parent.appendChild(doc.createTextNode(static_cast<const StringImp &>(d).data()));
return QStringLiteral("string");
} else if (d.inherits(TestResultImp::stype())) {
assert(false);
parent.appendChild(doc.createTextNode(static_cast<const TestResultImp &>(d).data()));
return QStringLiteral("testresult");
} else if (d.inherits(HierarchyImp::stype())) {
static_cast<const HierarchyImp &>(d).data().serialize(parent, doc);
return QStringLiteral("hierarchy");
} else if (d.inherits(TransformationImp::stype())) {
const Transformation &trans = static_cast<const TransformationImp &>(d).data();
QDomElement matrixe = doc.createElement(QStringLiteral("matrix"));
for (int i = 0; i < 3; ++i) {
for (int j = 0; j < 3; ++j) {
QDomElement elel = doc.createElement(QStringLiteral("element"));
elel.setAttribute(QStringLiteral("row"), QString::number(i));
elel.setAttribute(QStringLiteral("column"), QString::number(j));
elel.appendChild(doc.createTextNode(QString::number(trans.data(i, j))));
matrixe.appendChild(elel);
};
}
parent.appendChild(matrixe);
QDomElement homothetye = doc.createElement(QStringLiteral("homothetic"));
const char *ishomothety = trans.isHomothetic() ? "true" : "false";
homothetye.appendChild(doc.createTextNode(ishomothety));
parent.appendChild(homothetye);
return QStringLiteral("transformation");
} else if (d.inherits(AbstractLineImp::stype())) {
LineData l = static_cast<const AbstractLineImp &>(d).data();
addCoordinateElement("a", l.a, parent, doc);
addCoordinateElement("b", l.b, parent, doc);
if (d.inherits(SegmentImp::stype()))
return QStringLiteral("segment");
else if (d.inherits(RayImp::stype()))
return QStringLiteral("ray");
else
return QStringLiteral("line");
} else if (d.inherits(PointImp::stype())) {
addXYElements(static_cast<const PointImp &>(d).coordinate(), parent, doc);
return QStringLiteral("point");
} else if (d.inherits(TextImp::stype())) {
QString text = static_cast<const TextImp &>(d).text();
parent.appendChild(doc.createTextNode(text));
return QStringLiteral("text");
} else if (d.inherits(AngleImp::stype())) {
addDoubleElement("size", static_cast<const AngleImp &>(d).size(), parent, doc);
return QStringLiteral("angle");
} else if (d.inherits(ArcImp::stype())) {
const ArcImp &a = static_cast<const ArcImp &>(d);
addCoordinateElement("center", a.center(), parent, doc);
addDoubleElement("radius", a.radius(), parent, doc);
addDoubleElement("startangle", a.startAngle(), parent, doc);
addDoubleElement("angle", a.angle(), parent, doc);
return QStringLiteral("arc");
} else if (d.inherits(VectorImp::stype())) {
Coordinate dir = static_cast<const VectorImp &>(d).dir();
addXYElements(dir, parent, doc);
return QStringLiteral("vector");
} else if (d.inherits(LocusImp::stype())) {
const LocusImp &locus = static_cast<const LocusImp &>(d);
// serialize the curve..
QDomElement curve = doc.createElement(QStringLiteral("curve"));
const CurveImp &curveimp = *locus.curve();
QString type = serialize(curveimp, curve, doc);
curve.setAttribute(QStringLiteral("type"), type);
parent.appendChild(curve);
// serialize the hierarchy..
QDomElement hier = doc.createElement(QStringLiteral("calculation"));
locus.hierarchy().serialize(hier, doc);
parent.appendChild(hier);
return QStringLiteral("locus");
} else if (d.inherits(CircleImp::stype())) {
const CircleImp &c = static_cast<const CircleImp &>(d);
addCoordinateElement("center", c.center(), parent, doc);
addDoubleElement("radius", c.radius(), parent, doc);
return QStringLiteral("circle");
} else if (d.inherits(ConicImp::stype())) {
const ConicPolarData data = static_cast<const ConicImp &>(d).polarData();
addCoordinateElement("focus1", data.focus1, parent, doc);
addDoubleElement("pdimen", data.pdimen, parent, doc);
addDoubleElement("ecostheta0", data.ecostheta0, parent, doc);
addDoubleElement("esintheta0", data.esintheta0, parent, doc);
return QStringLiteral("conic");
} else if (d.inherits(CubicImp::stype())) {
const CubicCartesianData data = static_cast<const CubicImp &>(d).data();
QDomElement coeffs = doc.createElement(QStringLiteral("coefficients"));
addDoubleElement("a000", data.coeffs[0], coeffs, doc);
addDoubleElement("a001", data.coeffs[1], coeffs, doc);
addDoubleElement("a002", data.coeffs[2], coeffs, doc);
addDoubleElement("a011", data.coeffs[3], coeffs, doc);
addDoubleElement("a012", data.coeffs[4], coeffs, doc);
addDoubleElement("a022", data.coeffs[5], coeffs, doc);
addDoubleElement("a111", data.coeffs[6], coeffs, doc);
addDoubleElement("a112", data.coeffs[7], coeffs, doc);
addDoubleElement("a122", data.coeffs[8], coeffs, doc);
addDoubleElement("a222", data.coeffs[9], coeffs, doc);
parent.appendChild(coeffs);
return QStringLiteral("cubic");
}
assert(false);
return QString();
}
static Coordinate readXYElements(const QDomElement &e, bool &ok)
{
double x, y;
ok = true;
QDomElement xe = e.firstChild().toElement();
if (xe.isNull() || xe.tagName() != QLatin1String("x")) {
ok = false;
return Coordinate();
} else
x = xe.text().toDouble(&ok);
QDomElement ye = xe.nextSibling().toElement();
if (ye.isNull() || ye.tagName() != QLatin1String("y")) {
ok = false;
return Coordinate();
} else
y = ye.text().toDouble(&ok);
return Coordinate(x, y);
}
static Coordinate readCoordinateElement(const QDomNode &n, bool &ok, const char *tagname)
{
QDomElement e = n.toElement();
if (e.isNull() || e.tagName() != tagname) {
ok = false;
Coordinate ret;
return ret;
}
return readXYElements(e, ok);
}
static double readDoubleElement(const QDomNode &n, bool &ok, const char *tagname)
{
QDomElement e = n.toElement();
if (e.isNull() || e.tagName() != tagname) {
ok = false;
return 0.;
};
return e.text().toDouble(&ok);
}
ObjectImp *ObjectImpFactory::deserialize(const QString &type, const QDomElement &parent, QString &error) const
{
#define KIG_GENERIC_PARSE_ERROR \
{ \
error = i18n("An error was encountered at line %1 in file %2.", __LINE__, __FILE__); \
return nullptr; \
}
bool ok = true;
if (type == QLatin1String("int")) {
int ret = parent.text().toInt(&ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new IntImp(ret);
} else if (type == QLatin1String("double")) {
double ret = parent.text().toDouble(&ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new DoubleImp(ret);
} else if (type == QLatin1String("string")) {
return new StringImp(parent.text());
} else if (type == QLatin1String("testresult")) {
// should never get here, at least for new save files!
return new TestResultImp(true, parent.text());
} else if (type == QLatin1String("hierarchy")) {
ObjectHierarchy *hier = ObjectHierarchy::buildSafeObjectHierarchy(parent, error);
if (!hier)
return nullptr;
HierarchyImp *imp = new HierarchyImp(*hier);
delete hier;
return imp;
} else if (type == QLatin1String("transformation")) {
double data[3][3];
bool homothetic = false;
for (QDomElement childe = parent.firstChild().toElement(); !childe.isNull(); childe = childe.nextSibling().toElement()) {
if (childe.tagName() == QLatin1String("matrix")) {
for (QDomElement elel = childe.firstChild().toElement(); !elel.isNull(); elel = elel.nextSibling().toElement()) {
if (elel.tagName() != QLatin1String("element"))
KIG_GENERIC_PARSE_ERROR;
bool ok = true;
int row = elel.attribute(QStringLiteral("row")).toInt(&ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
int column = elel.attribute(QStringLiteral("column")).toInt(&ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
data[row][column] = elel.text().toDouble(&ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
};
} else if (childe.tagName() == QLatin1String("homothetic")) {
homothetic = childe.text() == QLatin1String("true");
} else
continue;
};
Transformation trans(data, homothetic);
return new TransformationImp(trans);
} else if (type == QLatin1String("point")) {
Coordinate ret = readXYElements(parent, ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new PointImp(ret);
} else if (type == QLatin1String("line") || type == QLatin1String("segment") || type == QLatin1String("ray")) {
QDomNode n = parent.firstChild();
Coordinate a = readCoordinateElement(n, ok, "a");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
Coordinate b = readCoordinateElement(n, ok, "b");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
if (type == QLatin1String("line"))
return new LineImp(a, b);
else if (type == QLatin1String("segment"))
return new SegmentImp(a, b);
else
return new RayImp(a, b);
} else if (type == QLatin1String("angle")) {
double size = readDoubleElement(parent.firstChild(), ok, "size");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
// TODO figure out how to know if this should be marked as a right angle
return new AngleImp(Coordinate(), 0, size, false);
} else if (type == QLatin1String("arc")) {
QDomNode n = parent.firstChild();
Coordinate center = readCoordinateElement(n, ok, "center");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double radius = readDoubleElement(n, ok, "radius");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double startangle = readDoubleElement(n, ok, "startangle");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double angle = readDoubleElement(n, ok, "angle");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new ArcImp(center, radius, startangle, angle);
} else if (type == QLatin1String("vector")) {
Coordinate dir = readXYElements(parent, ok);
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new VectorImp(Coordinate(), dir);
} else if (type == QLatin1String("locus")) {
QDomElement curvee = parent.firstChild().toElement();
if (curvee.isNull() || curvee.tagName() != QLatin1String("curve"))
KIG_GENERIC_PARSE_ERROR;
QString type = curvee.attribute(QStringLiteral("type"));
ObjectImp *oi = deserialize(type, curvee, error);
if (!oi || !oi->inherits(CurveImp::stype()))
KIG_GENERIC_PARSE_ERROR;
// CurveImp* curvei = static_cast<CurveImp*>( oi );
QDomElement hiere = curvee.nextSibling().toElement();
if (hiere.isNull() || hiere.tagName() != QLatin1String("calculation"))
KIG_GENERIC_PARSE_ERROR;
assert(false); // TODO
// return new LocusImp( curvei, hier );
} else if (type == QLatin1String("circle")) {
QDomNode n = parent.firstChild();
Coordinate center = readCoordinateElement(n, ok, "center");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double radius = readDoubleElement(n, ok, "radius");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new CircleImp(center, radius);
} else if (type == QLatin1String("conic")) {
QDomNode n = parent.firstChild();
Coordinate focus1 = readCoordinateElement(n, ok, "focus1");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double pdimen = readDoubleElement(n, ok, "pdimen");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double ecostheta0 = readDoubleElement(n, ok, "ecostheta0");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double esintheta0 = readDoubleElement(n, ok, "esintheta0");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new ConicImpPolar(ConicPolarData(focus1, pdimen, ecostheta0, esintheta0));
} else if (type == QLatin1String("cubic")) {
QDomElement coeffse = parent.firstChild().toElement();
if (coeffse.isNull() || coeffse.tagName() != QLatin1String("coefficients"))
KIG_GENERIC_PARSE_ERROR;
QDomNode n = coeffse.firstChild();
double a000 = readDoubleElement(n, ok, "a000");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a001 = readDoubleElement(n, ok, "a001");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a002 = readDoubleElement(n, ok, "a002");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a011 = readDoubleElement(n, ok, "a011");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a012 = readDoubleElement(n, ok, "a012");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a022 = readDoubleElement(n, ok, "a022");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a111 = readDoubleElement(n, ok, "a111");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a112 = readDoubleElement(n, ok, "a112");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a122 = readDoubleElement(n, ok, "a112");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
n = n.nextSibling();
double a222 = readDoubleElement(n, ok, "a222");
if (!ok)
KIG_GENERIC_PARSE_ERROR;
return new CubicImp(CubicCartesianData(a000, a001, a002, a011, a012, a022, a111, a112, a122, a222));
}
error = i18n(
"This Kig file uses an object of type \"%1\", "
"which this Kig version does not support."
"Perhaps you have compiled Kig without support "
"for this object type,"
"or perhaps you are using an older Kig version.",
type);
return nullptr;
}
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