/***************************************************************************
 *   Copyright (c) 2022 Uwe Stöhr <uwestoehr@lyx.org>                      *
 *                                                                         *
 *   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_

// to avoid compiler warnings of redefining contents of basic.h
// later by #include <Gui/ViewProviderGeometryObject.h>
# define _USE_MATH_DEFINES  // NOLINT
# include <cmath>

# include <Inventor/actions/SoGetBoundingBoxAction.h>
# include <Inventor/nodes/SoCamera.h>
# include <Inventor/nodes/SoOrthographicCamera.h>
# include <QDialog>
# include <QDockWidget>
# include <QDoubleSpinBox>
# include <QSlider>
# include <QToolTip>
#endif

#include <App/Document.h>
#include <App/Link.h>
#include <App/Part.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/UnitsApi.h>
#include <Gui/Application.h>
#include <Gui/Command.h>
#include <Gui/DockWindowManager.h>
#include <Gui/Document.h>
#include <Gui/MainWindow.h>
#include <Gui/PrefWidgets.h>
#include <Gui/View3DInventor.h>
#include <Gui/View3DInventorViewer.h>
#include <Gui/ViewProviderGeometryObject.h>
#include <Mod/Part/App/FeatureCompound.h>
#include <Mod/Part/App/FeaturePartBox.h>
#include <Mod/Part/App/FeaturePartCommon.h>
#include <Mod/Part/App/FeaturePartCut.h>
#include <Mod/Part/App/FeaturePartFuse.h>
#include <Mod/Part/App/PartFeatures.h>

#include "SectionCutting.h"
#include "ui_SectionCutting.h"


using namespace PartGui;

namespace
{
struct Refresh
{
    static const bool notXValue = false;
    static const bool notYValue = false;
    static const bool notZValue = false;
    static const bool notXRange = false;
    static const bool notYRange = false;
    static const bool notZRange = false;
    static const bool XValue = true;
    static const bool YValue = true;
    static const bool ZValue = true;
    static const bool XRange = true;
    static const bool YRange = true;
    static const bool ZRange = true;
};
}

// NOLINTBEGIN(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)
SectionCut::SectionCut(QWidget* parent)
    : QDialog(parent)
    , ui(new Ui_SectionCut)
{
    // create widgets
    ui->setupUi(this);
    initSpinBoxes();

    // get all objects in the document
    auto docGui = Gui::Application::Instance->activeDocument();
    if (!docGui) {
        throw Base::RuntimeError("SectionCut error: there is no document");
    }
    doc = docGui->getDocument();
    if (!doc) {
        throw Base::RuntimeError("SectionCut error: there is no document");
    }

    std::vector<App::DocumentObject*> ObjectsList = doc->getObjects();
    if (ObjectsList.empty()) {
        throw Base::RuntimeError("SectionCut error: there are no objects in the document");
    }

    // now store those that are currently visible
    for (auto anObject : ObjectsList) {
        if (anObject->Visibility.getValue()) {
            ObjectsListVisible.emplace_back(anObject);
        }
    }

    // if we can have existing cut boxes, take their values
    // to access the flip state we must compare the bounding boxes of the cutbox and the compound
    Base::BoundBox3d BoundCompound = collectObjects();
    initControls(BoundCompound);

    // hide existing cuts to check if there are objects to be cut visible
    hideCutObjects();

    initCutRanges();

    setupConnections();

    tryStartCutting();
}

void SectionCut::initSpinBoxes()
{
    ui->cutX->setRange(-INT_MAX, INT_MAX);
    ui->cutY->setRange(-INT_MAX, INT_MAX);
    ui->cutZ->setRange(-INT_MAX, INT_MAX);
}

void SectionCut::initControls(const Base::BoundBox3d& BoundCompound)
{
    // lambda function to set color and transparency
    auto setColorTransparency = [&](Part::Box* pcBox) {
        App::Color cutColor;
        long cutTransparency{};
        auto vpBox = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(pcBox));
        if (vpBox) {
            cutColor = vpBox->ShapeAppearance.getDiffuseColor();
            cutTransparency = vpBox->Transparency.getValue();
            ui->CutColor->setColor(cutColor.asValue<QColor>());
            ui->CutTransparencyHS->setValue(int(cutTransparency));
            ui->CutTransparencyHS->setToolTip(QString::number(cutTransparency)
                                            + QString::fromLatin1(" %"));
        }
    };

    initZControls(BoundCompound, setColorTransparency);
    initYControls(BoundCompound, setColorTransparency);
    initXControls(BoundCompound, setColorTransparency);
}

void SectionCut::initXControls(const Base::BoundBox3d& BoundCompound,
                               const std::function<void(Part::Box*)>& setTransparency)
{
    Base::BoundBox3d BoundCutBox;
    if (auto pcBox = findCutBox(BoxXName)) {
        hasBoxX = true;
        ui->groupBoxX->setChecked(true);
        BoundCutBox = pcBox->Shape.getBoundingBox();
        if (BoundCutBox.MinX > BoundCompound.MinX) {
            ui->cutX->setValue(pcBox->Placement.getValue().getPosition().x);
            ui->flipX->setChecked(true);
        }
        else {
            ui->cutX->setValue(pcBox->Length.getValue()
                               + pcBox->Placement.getValue().getPosition().x);
            ui->flipX->setChecked(false);
        }
        setTransparency(pcBox);
    }
}

void SectionCut::initYControls(const Base::BoundBox3d& BoundCompound,
                               const std::function<void(Part::Box*)>& setTransparency)
{
    Base::BoundBox3d BoundCutBox;
    if (auto pcBox = findCutBox(BoxYName)) {
        hasBoxY = true;
        ui->groupBoxY->setChecked(true);
        BoundCutBox = pcBox->Shape.getBoundingBox();
        if (BoundCutBox.MinY > BoundCompound.MinY) {
            ui->cutY->setValue(pcBox->Placement.getValue().getPosition().y);
            ui->flipY->setChecked(true);
        }
        else {
            ui->cutY->setValue(pcBox->Width.getValue()
                               + pcBox->Placement.getValue().getPosition().y);
            ui->flipY->setChecked(false);
        }
        setTransparency(pcBox);
    }
}

void SectionCut::initZControls(const Base::BoundBox3d& BoundCompound,
                               const std::function<void(Part::Box*)>& setTransparency)
{
    Base::BoundBox3d BoundCutBox;
    if (auto pcBox = findCutBox(BoxZName)) {
        hasBoxZ = true;
        ui->groupBoxZ->setChecked(true);
        // if z of cutbox bounding is greater than z of compound bounding
        // we know that the cutbox is in flipped state
        BoundCutBox = pcBox->Shape.getBoundingBox();
        if (BoundCutBox.MinZ > BoundCompound.MinZ) {
            ui->cutZ->setValue(pcBox->Placement.getValue().getPosition().z);
            ui->flipZ->setChecked(true);
        }
        else {
            ui->cutZ->setValue(pcBox->Height.getValue()
                               + pcBox->Placement.getValue().getPosition().z);
            ui->flipZ->setChecked(false);
        }
        // set color and transparency
        setTransparency(pcBox);
    }
}

void SectionCut::initCutRanges()
{
    // get bounding box
    SbBox3f box = getViewBoundingBox();
    if (!box.isEmpty()) {  // NOLINT
        // if there is a cut box, perform the cut
        if (hasBoxX || hasBoxY || hasBoxZ) {
            // refresh only the range since we set the values above already
            refreshCutRanges(box, Refresh::notXValue, Refresh::notYValue, Refresh::notZValue,
                Refresh::XRange, Refresh::YRange, Refresh::ZRange);
        }
        else {
            refreshCutRanges(box, Refresh::XValue, Refresh::YValue, Refresh::ZValue,
                Refresh::XRange, Refresh::YRange, Refresh::ZRange);
        }
    }
}

void SectionCut::tryStartCutting()
{
    // if there is a cut, perform it
    if (hasBoxX || hasBoxY || hasBoxZ) {
        ui->RefreshCutPB->setEnabled(false);
        startCutting(true);
    }
}

void SectionCut::setAutoColoringChecked(bool on)
{
    ui->autoCutfaceColorCB->setChecked(on);
    ui->autoBFColorCB->setChecked(on);
}

void SectionCut::setSlidersEnabled(bool on)
{
    ui->cutXHS->setEnabled(on);
    ui->cutYHS->setEnabled(on);
    ui->cutZHS->setEnabled(on);
}

void SectionCut::setSlidersToolTip(const QString& text)
{
    ui->cutXHS->setToolTip(text);
    ui->cutYHS->setToolTip(text);
    ui->cutZHS->setToolTip(text);
}

void SectionCut::setGroupsDisabled()
{
    ui->groupBoxX->blockSignals(true);
    ui->groupBoxY->blockSignals(true);
    ui->groupBoxZ->blockSignals(true);
    ui->groupBoxX->setChecked(false);
    ui->groupBoxY->setChecked(false);
    ui->groupBoxZ->setChecked(false);
    ui->RefreshCutPB->setEnabled(true);
    ui->groupBoxX->blockSignals(false);
    ui->groupBoxY->blockSignals(false);
    ui->groupBoxZ->blockSignals(false);
}

void SectionCut::initBooleanFragmentControls(Gui::ViewProviderGeometryObject* compoundBF)
{
    // for BooleanFragments we also need to set the checkbox, transparency and color
    ui->groupBoxIntersecting->setChecked(true);

    if (compoundBF) {
        App::Color compoundColor = compoundBF->ShapeAppearance.getDiffuseColor();
        ui->BFragColor->setColor(compoundColor.asValue<QColor>());
        long compoundTransparency = compoundBF->Transparency.getValue();
        ui->BFragTransparencyHS->setValue(int(compoundTransparency));
        ui->BFragTransparencyHS->setToolTip(QString::number(compoundTransparency)
                                            + QString::fromLatin1(" %"));
        // Part::Cut ignores the cutbox transparency when it is set
        // to zero and the BooleanFragments transparency is not zero
        // therefore limit the cutbox transparency to 1 in this case
        ui->CutTransparencyHS->setMinimum(compoundTransparency > 0 ? 1 : 0);
    }
}

void SectionCut::collectAndShowLinks(const std::vector<App::DocumentObject*>& objects)
{
    // make parent objects of links visible to handle the case that
    // the cutting is started when only an existing cut was visible
    for (auto aCompoundObj : objects) {
        auto pcLink = dynamic_cast<App::Link*>(aCompoundObj);
        auto LinkedObject = pcLink ? pcLink->getLink() : nullptr;
        if (LinkedObject) {
            // only if not already visible
            if (!(LinkedObject->Visibility.getValue())) {
                LinkedObject->Visibility.setValue(true);
                ObjectsListVisible.emplace_back(LinkedObject);
            }
        }
    }
}

Base::BoundBox3d SectionCut::collectObjects()
{
    Base::BoundBox3d BoundCompound;
    if (doc->getObject(BoxXName) || doc->getObject(BoxYName) || doc->getObject(BoxZName)) {

        // automatic coloring must be disabled
        setAutoColoringChecked(false);

        // get the object with the right name
        if (auto compoundObject = doc->getObject(CompoundName)) {
            // to later store the childs
            std::vector<App::DocumentObject*> compoundChilds;

            // check if this is a BooleanFragments or a Part::Compound
            // Part::Compound is the case when there was only one object
            auto pcCompoundPart = dynamic_cast<Part::Compound*>(compoundObject);
            auto pcPartFeature = dynamic_cast<Part::Feature*>(compoundObject);
            if (!pcCompoundPart && pcPartFeature) {
                // for more security check for validity accessing its ViewProvider
                auto pcCompoundBF = Gui::Application::Instance->getViewProvider(pcPartFeature);
                compoundChilds = pcCompoundBF->claimChildren();
                BoundCompound = pcPartFeature->Shape.getBoundingBox();

                auto pcCompoundBFGO = dynamic_cast<Gui::ViewProviderGeometryObject*>(pcCompoundBF);
                initBooleanFragmentControls(pcCompoundBFGO);
            }
            else if (pcCompoundPart) {
                BoundCompound = pcCompoundPart->Shape.getBoundingBox();
                pcCompoundPart->Links.getLinks(compoundChilds);
            }

            collectAndShowLinks(compoundChilds);
        }
    }

    return BoundCompound;
}

void SectionCut::setupConnections()
{
    // clang-format off
    connect(ui->groupBoxX, &QGroupBox::toggled,
            this, &SectionCut::onGroupBoxXtoggled);
    connect(ui->groupBoxY, &QGroupBox::toggled,
            this, &SectionCut::onGroupBoxYtoggled);
    connect(ui->groupBoxZ, &QGroupBox::toggled,
            this, &SectionCut::onGroupBoxZtoggled);
    connect(ui->cutX, qOverload<double>(&QDoubleSpinBox::valueChanged),
            this, &SectionCut::onCutXvalueChanged);
    connect(ui->cutY, qOverload<double>(&QDoubleSpinBox::valueChanged),
            this, &SectionCut::onCutYvalueChanged);
    connect(ui->cutZ, qOverload<double>(&QDoubleSpinBox::valueChanged),
            this, &SectionCut::onCutZvalueChanged);
    connect(ui->cutXHS, &QSlider::sliderMoved,
            this, &SectionCut::onCutXHSsliderMoved);
    connect(ui->cutYHS, &QSlider::sliderMoved,
            this, &SectionCut::onCutYHSsliderMoved);
    connect(ui->cutZHS, &QSlider::sliderMoved,
            this, &SectionCut::onCutZHSsliderMoved);
    connect(ui->cutXHS, &QSlider::valueChanged,
            this, &SectionCut::onCutXHSChanged);
    connect(ui->cutYHS, &QSlider::valueChanged,
            this, &SectionCut::onCutYHSChanged);
    connect(ui->cutZHS, &QSlider::valueChanged,
            this, &SectionCut::onCutZHSChanged);
    connect(ui->flipX, &QPushButton::clicked,
            this, &SectionCut::onFlipXclicked);
    connect(ui->flipY, &QPushButton::clicked,
            this, &SectionCut::onFlipYclicked);
    connect(ui->flipZ, &QPushButton::clicked,
            this, &SectionCut::onFlipZclicked);
    connect(ui->RefreshCutPB, &QPushButton::clicked,
            this, &SectionCut::onRefreshCutPBclicked);
    connect(ui->CutColor, &QPushButton::clicked,
            this, &SectionCut::onCutColorclicked);
    connect(ui->CutTransparencyHS, &QSlider::sliderMoved,
            this, &SectionCut::onTransparencyHSMoved);
    connect(ui->CutTransparencyHS, &QSlider::valueChanged,
            this, &SectionCut::onTransparencyHSChanged);
    connect(ui->groupBoxIntersecting, &QGroupBox::toggled,
            this, &SectionCut::onGroupBoxIntersectingToggled);
    connect(ui->BFragColor, &QPushButton::clicked,
            this, &SectionCut::onBFragColorclicked);
    connect(ui->BFragTransparencyHS, &QSlider::sliderMoved,
            this, &SectionCut::onBFragTransparencyHSMoved);
    connect(ui->BFragTransparencyHS,&QSlider::valueChanged,
            this, &SectionCut::onBFragTransparencyHSChanged);
    // clang-format on
}

void SectionCut::hideCutObjects()
{
    if (auto obj = doc->getObject(CutXName)) {
        obj->Visibility.setValue(false);
    }
    if (auto obj = doc->getObject(CutYName)) {
        obj->Visibility.setValue(false);
    }
    if (auto obj = doc->getObject(CutZName)) {
        obj->Visibility.setValue(false);
    }
}

// actions to be done when document was closed
void SectionCut::noDocumentActions()
{
    ui->groupBoxX->blockSignals(true);
    ui->groupBoxY->blockSignals(true);
    ui->groupBoxZ->blockSignals(true);
    doc = nullptr;
    // reset the cut group boxes
    ui->groupBoxX->setChecked(false);
    ui->groupBoxY->setChecked(false);
    ui->groupBoxZ->setChecked(false);
    ui->RefreshCutPB->setEnabled(true);
    ui->groupBoxX->blockSignals(false);
    ui->groupBoxY->blockSignals(false);
    ui->groupBoxZ->blockSignals(false);
}

void SectionCut::setAutoColor(const QColor& color)
{
    if (ui->autoCutfaceColorCB->isChecked()) {
        ui->CutColor->blockSignals(true);
        ui->CutColor->setColor(color);
        ui->CutColor->blockSignals(false);
    }
    if (ui->autoBFColorCB->isChecked()) {
        ui->BFragColor->blockSignals(true);
        ui->BFragColor->setColor(color);
        ui->BFragColor->blockSignals(false);
    }
}

void SectionCut::setAutoTransparency(int value)
{
    if (ui->autoCutfaceColorCB->isChecked()) {
        ui->CutTransparencyHS->blockSignals(true);
        ui->CutTransparencyHS->setValue(value);
        ui->CutTransparencyHS->setToolTip(QString::number(value)
                                          + QString::fromLatin1(" %"));
        ui->CutTransparencyHS->blockSignals(false);
    }
    if (ui->autoBFColorCB->isChecked()) {
        ui->BFragTransparencyHS->blockSignals(true);
        ui->BFragTransparencyHS->setValue(value);
        ui->BFragTransparencyHS->setToolTip(QString::number(value)
                                          + QString::fromLatin1(" %"));
        ui->BFragTransparencyHS->blockSignals(false);
    }
}

void SectionCut::deleteObejcts()
{
    App::DocumentObject* anObject = nullptr;

    // lambda function to delete objects
    auto deleteObject = [&](const char* objectName) {
        anObject = doc->getObject(objectName);
        // the deleted object might have been visible before, thus check and delete it from the list
        auto found = std::find_if(
            ObjectsListVisible.begin(), ObjectsListVisible.end(),
            [anObject](const App::DocumentObjectT &obj) { return (obj.getObject() == anObject);
        });
        if (found != ObjectsListVisible.end()) {
            ObjectsListVisible.erase(found);
        }
        doc->removeObject(objectName);
    };

    int compoundTransparency = -1;
    // lambda to store the compoundTransparency
    auto storeTransparency = [&](App::DocumentObject* cutObject) {
        auto CompoundVP = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(cutObject));
        if (CompoundVP && compoundTransparency == -1) {
            compoundTransparency = int(CompoundVP->Transparency.getValue());
        }
    };

    // delete the objects we might have already created to cut
    // we must do this because we support several cuts at once and
    // it is dangerous to deal with the fact that the user is free
    // to uncheck cutting planes and to add/remove objects while this dialog is open
    // We must remove in this order because the tree hierary of the features is Z->Y->X and Cut->Box
    if (doc->getObject(CutZName)) {
        // the topmost cut transparency determines the overall transparency
        storeTransparency(doc->getObject(CutZName));
        deleteObject(CutZName);
    }
    if (doc->getObject(BoxZName)) {
        deleteObject(BoxZName);
    }
    if (doc->getObject(CutYName)) {
        storeTransparency(doc->getObject(CutYName));
        deleteObject(CutYName);
    }
    if (doc->getObject(BoxYName)) {
        deleteObject(BoxYName);
    }
    if (doc->getObject(CutXName)) {
        storeTransparency(doc->getObject(CutXName));
        deleteObject(CutXName);
    }
    if (doc->getObject(BoxXName)) {
        deleteObject(BoxXName);
    }
}

void SectionCut::deleteCompound()
{
    // get the object with the right name
    if (auto compoundObject = doc->getObject(CompoundName)) {
        App::DocumentObject* anObject = compoundObject;
        // to later store the childs
        std::vector<App::DocumentObject*> compoundChilds;

        // check if this is a BooleanFragments or a Part::Compound
        auto pcCompoundDelPart = dynamic_cast<Part::Compound*>(compoundObject);
        Gui::ViewProvider* pcCompoundDelBF{};
        if (!pcCompoundDelPart) {
            // check for BooleanFragments
            pcCompoundDelBF = Gui::Application::Instance->getViewProvider(compoundObject);
            if (!pcCompoundDelBF) {
                Base::Console().Error(
                    "SectionCut error: compound is incorrectly named, cannot proceed\n");
                return;
            }
            compoundChilds = pcCompoundDelBF->claimChildren();
        }
        else {
            pcCompoundDelPart->Links.getLinks(compoundChilds);
        }

        // first delete the compound
        auto foundObj = std::find_if(
            ObjectsListVisible.begin(), ObjectsListVisible.end(),
            [anObject](const App::DocumentObjectT &obj) { return (obj.getObject() == anObject);
        });
        if (foundObj != ObjectsListVisible.end()) {
            ObjectsListVisible.erase(foundObj);
        }
        doc->removeObject(CompoundName);
        // now delete the objects that have been part of the compound
        for (auto aChild : compoundChilds) {
            anObject = doc->getObject(aChild->getNameInDocument());
            auto foundObjInner = std::find_if(ObjectsListVisible.begin(), ObjectsListVisible.end(),
                                              [anObject](const App::DocumentObjectT &objInner) {
                                                  return (objInner.getObject() == anObject);
                                              });
            if (foundObjInner != ObjectsListVisible.end()) {
                ObjectsListVisible.erase((foundObjInner));
            }
            doc->removeObject(aChild->getNameInDocument());
        }
    }
}

void SectionCut::restoreVisibility()
{
    // make all objects visible that have been visible when the dialog was called
    // because we made them invisible when we created cuts
    for (auto& aVisObject : ObjectsListVisible) {
        if (aVisObject.getObject()) {
            // a formerly visible object might have been deleted
            aVisObject.getObject()->Visibility.setValue(true);
        }
        else {
            // we must refresh the ObjectsListVisible list
            // Disable this function call as modifying the container while iterating it
            // causes a crash.
            // onRefreshCutPBclicked();
        }
    }
}

Part::Box* SectionCut::createBox(const char* name, const Base::Vector3f& size)  // NOLINT
{
    // create a box
    auto pcBox = dynamic_cast<Part::Box*>(doc->addObject("Part::Box", name));
    if (!pcBox) {
        throw Base::RuntimeError(std::string("SectionCut error: ")
            + std::string(name) + std::string(" could not be added\n"));
    }

    // it appears that because of internal rounding errors, the bounding box is sometimes
    // a bit too small, for example for ellipsoids, thus make the box a bit larger
    pcBox->Length.setValue(size[0] + 1.0);
    pcBox->Width.setValue(size[1] + 1.0);
    pcBox->Height.setValue(size[2] + 1.0);

    return pcBox;
}

Part::Box* SectionCut::tryCreateXBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    try {
        return createXBox(pos, size);
    }
    catch (const Base::Exception& e) {
        e.ReportException();
        return nullptr;
    }
}

std::tuple<Part::Box*, Part::Cut*> SectionCut::tryCreateXBoxAndCut(const Base::Vector3f& pos,
                                                                   const Base::Vector3f& size)
{
    auto pcBox = tryCreateXBox(pos, size);
    auto pcCut = tryCreateCut(CutXName);
    return {pcBox, pcCut};
}

std::tuple<Part::Box*, Part::Cut*> SectionCut::tryCreateYBoxAndCut(const Base::Vector3f& pos,
                                                                   const Base::Vector3f& size)
{
    auto pcBox = tryCreateYBox(pos, size);
    auto pcCut = tryCreateCut(CutYName);
    return {pcBox, pcCut};
}

std::tuple<Part::Box*, Part::Cut*> SectionCut::tryCreateZBoxAndCut(const Base::Vector3f& pos,
                                                                   const Base::Vector3f& size)
{
    auto pcBox = tryCreateZBox(pos, size);
    auto pcCut = tryCreateCut(CutZName);
    return {pcBox, pcCut};
}

Part::Box* SectionCut::createXBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    // create a box
    auto pcBox = createBox(BoxXName, size);
    // set the previous cut value because refreshCutRanges changed it
    // in case the there was previously no cut, nothing will actually be changed
    // the previous value might now be outside the current possible range, then reset it
    double CutPosX = ui->cutX->value();
    if (CutPosX >= ui->cutX->maximum()) {
        CutPosX = ui->cutX->maximum() - 0.1; // short below the maximum
    }
    else if (CutPosX <= ui->cutX->minimum()) {
        CutPosX = ui->cutX->minimum() + 0.1; // short above the minimum
    }
    // set the cut value
    ui->cutX->setValue(CutPosX);

    // we don't set the value to ui->cutX because this would refresh the cut
    // which we don't have yet, thus do this later
    // set the box position
    Base::Vector3d BoxOriginSet;
    if (!ui->flipX->isChecked()) {
        BoxOriginSet.x = CutPosX - (size[0] + 1.0);
    }
    else {
        // flipped
        BoxOriginSet.x = CutPosX;
    }
    // we made the box 1.0 larger that we can place it 0.5 below the bounding box
    BoxOriginSet.y = pos[1] - 0.5;
    BoxOriginSet.z = pos[2] - 0.5;
    Base::Placement placement;
    placement.setPosition(BoxOriginSet);
    // set box placement, color and transparency
    pcBox->Placement.setValue(placement);

    return pcBox;
}

Part::Box* SectionCut::tryCreateYBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    try {
        return createYBox(pos, size);
    }
    catch (const Base::Exception& e) {
        e.ReportException();
        return nullptr;
    }
}

Part::Box* SectionCut::createYBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    auto pcBox = createBox(BoxYName, size);
    // reset previous cut value
    double CutPosY = ui->cutY->value();
    if (CutPosY >= ui->cutY->maximum()) {
        CutPosY = ui->cutY->maximum() - 0.1; // short below the maximum
    }
    else if (CutPosY <= ui->cutY->minimum()) {
        CutPosY = ui->cutY->minimum() + 0.1; // short above the minimum
    }

    // set the cut value
    ui->cutY->setValue(CutPosY);

    // set the box position
    Base::Vector3d BoxOriginSet;
    BoxOriginSet.x = pos[0] - 0.5;
    if (!ui->flipY->isChecked()) {
        BoxOriginSet.y = CutPosY - (size[1] + 1.0);
    }
    else {
        // flipped
        BoxOriginSet.y = CutPosY;
    }
    BoxOriginSet.z = pos[2] - 0.5;
    Base::Placement placement;
    placement.setPosition(BoxOriginSet);
    pcBox->Placement.setValue(placement);

    return pcBox;
}

Part::Box* SectionCut::tryCreateZBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    try {
        return createZBox(pos, size);
    }
    catch (const Base::Exception& e) {
        e.ReportException();
        return nullptr;
    }
}

Part::Box* SectionCut::createZBox(const Base::Vector3f& pos, const Base::Vector3f& size)  // NOLINT
{
    auto pcBox = createBox(BoxZName, size);
    // reset previous cut value
    double CutPosZ = ui->cutZ->value();
    if (CutPosZ >= ui->cutZ->maximum()) {
        CutPosZ = ui->cutZ->maximum() - 0.1; // short below the maximum
    }
    else if (CutPosZ <= ui->cutZ->minimum()) {
        CutPosZ = ui->cutZ->minimum() + 0.1; // short above the minimum
    }

    // set the cut value
    ui->cutZ->setValue(CutPosZ);

    // set the box position
    Base::Vector3d BoxOriginSet;
    BoxOriginSet.x = pos[0] - 0.5;
    BoxOriginSet.y = pos[1] - 0.5;
    if (!ui->flipY->isChecked()) {
        BoxOriginSet.z = CutPosZ - (size[2] + 1.0);
    }
    else {
        // flipped
        BoxOriginSet.z = CutPosZ;
    }
    Base::Placement placement;
    placement.setPosition(BoxOriginSet);
    pcBox->Placement.setValue(placement);

    return pcBox;
}

Part::Cut* SectionCut::createCut(const char* name)
{
    auto pcCut = dynamic_cast<Part::Cut*>(doc->addObject("Part::Cut", name));
    if (!pcCut) {
        throw Base::RuntimeError(std::string("SectionCut error: ")
            + std::string(name) + std::string(" could not be added\n"));
    }

    return pcCut;
}

Part::Cut* SectionCut::tryCreateCut(const char* name)
{
    try {
        return createCut(name);
    }
    catch (const Base::Exception& e) {
        e.ReportException();
        return nullptr;
    }
}

void SectionCut::startCutting(bool isInitial)
{
    // there might be no document
    if (!Gui::Application::Instance->activeDocument()) {
        noDocumentActions();
        return;
    }
    // the document might have been changed
    if (doc != Gui::Application::Instance->activeDocument()->getDocument()) {
        // refresh documents list
        onRefreshCutPBclicked();
    }

    deleteObejcts();

    deleteCompound();

    restoreVisibility();

    // we enable the sliders because for assemblies we disabled them
    setSlidersEnabled(true);

    try {
        startObjectCutting(isInitial);
    }
    catch (const Base::Exception& e) {
        e.ReportException();
    }
}

bool SectionCut::findObjects(std::vector<App::DocumentObject*>& objects)
{
    bool isLinkAssembly = false;
    for (auto& aVisObject : ObjectsListVisible) {
        App::DocumentObject* object = aVisObject.getObject();
        if (!object) {
            continue;
        }
        // we need all Link objects in App::Part for example for Assembly 4
        if (auto pcPart = dynamic_cast<App::Part*>(object)) {
            // collect all its link objects
            auto groupObjects = pcPart->Group.getValue();
            for (auto aGroupObject : groupObjects) {
                if (aGroupObject->getTypeId() == Base::Type::fromName("App::Link")) {
                    objects.push_back(aGroupObject);
                    // we assume that App::Links inside a App::Part are an assembly
                    isLinkAssembly = true;
                }
            }
        }
        // get all shapes that are also Part::Features
        if (object->getPropertyByName("Shape") != nullptr
            && object->getTypeId().isDerivedFrom(
                Base::Type::fromName("Part::Feature"))) {
            // sort out 2D objects, datums, App:Parts, compounds and objects that are
            // part of a PartDesign body
            if (!object->getTypeId().isDerivedFrom(
                    Base::Type::fromName("Part::Part2DObject"))
                && !object->getTypeId().isDerivedFrom(
                    Base::Type::fromName("Part::Datum"))
                && !object->getTypeId().isDerivedFrom(
                    Base::Type::fromName("PartDesign::Feature"))
                && !object->getTypeId().isDerivedFrom(
                    Base::Type::fromName("Part::Compound"))
                && object->getTypeId() != Base::Type::fromName("App::Part")) {
                objects.push_back(object);
            }
        }
        // get Links that are derived from Part objects
        if (auto pcLink = dynamic_cast<App::Link*>(object)) {
            auto linkedObject = doc->getObject(pcLink->LinkedObject.getObjectName());
            if (linkedObject != nullptr
                && linkedObject->getTypeId().isDerivedFrom(Base::Type::fromName("Part::Feature"))) {
                objects.push_back(object);
            }
        }
    }

    return isLinkAssembly;
}

void SectionCut::filterObjects(std::vector<App::DocumentObject*>& objects)
{
    // sort out objects that are part of Part::Boolean, Part::MultiCommon, Part::MultiFuse,
    // Part::Thickness and Part::FilletBase
    // check list of visible objects and not cut list because we want to remove from the cut list
    for (auto &aVisObject : ObjectsListVisible) {
        App::DocumentObject* object = aVisObject.getObject();
        if (!object) {
            continue;
        }
        if (object->getTypeId().isDerivedFrom(Base::Type::fromName("Part::Boolean"))
            || object->getTypeId().isDerivedFrom(
                Base::Type::fromName("Part::MultiCommon"))
            || object->getTypeId().isDerivedFrom(
                Base::Type::fromName("Part::MultiFuse"))
            || object->getTypeId().isDerivedFrom(
                Base::Type::fromName("Part::Thickness"))
            || object->getTypeId().isDerivedFrom(
                Base::Type::fromName("Part::FilletBase"))) {
            // get possible links
            auto subObjectList = object->getOutList();
            // if there are links, delete them
            if (!subObjectList.empty()) {
                for (auto aSubObj : subObjectList) {
                    for (auto itCutObj = objects.begin(); itCutObj != objects.end();
                         ++itCutObj) {
                        if (aSubObj == *itCutObj) {
                            objects.erase(itCutObj);
                            break;
                        }
                    }
                }
            }
        }
    }
}

void SectionCut::throwMissingObjectsError(bool isInitial)
{
    // block signals to be able to reset the cut group boxes without calling startCutting again
    setGroupsDisabled();

    if (isInitial) {
        throw Base::RuntimeError("There are no visible objects to be cut");
    }

    throw Base::RuntimeError("There are no objects in the document that can be cut");
}

bool SectionCut::isCuttingEnabled() const
{
    return ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked();
}

namespace {
App::Color getFirstColor(const std::vector<App::DocumentObject*>& objects)
{
    App::Color cutColor;
    auto vpFirstObject = dynamic_cast<Gui::ViewProviderGeometryObject*>(
        Gui::Application::Instance->getViewProvider(objects.front()));
    if (vpFirstObject) {
        cutColor = vpFirstObject->ShapeAppearance.getDiffuseColor();
    }
    return cutColor;
}

long getFirstTransparency(const std::vector<App::DocumentObject*>& objects)
{
    long cutTransparency {0};
    auto vpFirstObject = dynamic_cast<Gui::ViewProviderGeometryObject*>(
        Gui::Application::Instance->getViewProvider(objects.front()));
    if (vpFirstObject) {
        cutTransparency = vpFirstObject->Transparency.getValue();
    }
    return cutTransparency;
}

bool isAutoColor(const App::Color& color, const std::vector<App::DocumentObject*>& objects)
{
    bool autoColor = true;
    for (auto itCuts : objects) {
        auto vpObject = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(itCuts));
        if (vpObject) {
            if (color != vpObject->ShapeAppearance.getDiffuseColor()) {
                autoColor = false;
                break;
            }
        }
    }

    return autoColor;
}

bool isAutoTransparency(long transparency, const std::vector<App::DocumentObject*>& objects)
{
    bool autoTransparency = true;
    for (auto itCuts : objects) {
        auto vpObject = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(itCuts));
        if (vpObject) {
            if (transparency != vpObject->Transparency.getValue()) {
                autoTransparency = false;
                break;
            }
        }
    }

    return autoTransparency;
}

std::vector<App::DocumentObject*> createLinks(App::Document* doc, const std::vector<App::DocumentObject*>& objects)
{
    std::vector<App::DocumentObject*> links;
    for (auto itCuts : objects) {
        // first create a link with a unique name
        std::string newName;
        // since links to normal Part objects all have the document name "Link",
        // use their label text instead
        if (itCuts->getTypeId() == Base::Type::fromName("App::Link")) {
            newName = itCuts->Label.getValue();
        }
        else {
            newName = itCuts->getNameInDocument();
        }
        newName += "_CutLink";

        auto pcLink = dynamic_cast<App::Link*>(doc->addObject("App::Link", newName.c_str()));
        if (!pcLink) {
            throw Base::RuntimeError("'App::Link' could not be added");
        }

        // set the object to the created empty link object
        pcLink->LinkedObject.setValue(itCuts);
        // we want to get the link at the same position as the original
        pcLink->LinkTransform.setValue(true);

        // add link to list to later add this to the compound object
        links.push_back(pcLink);

        // if the object is part of an App::Part container,
        // the link needs to get the container placement
        auto parents = itCuts->getInList();
        if (!parents.empty()) {
            for (auto parent : parents) {
                if (auto pcPartParent = dynamic_cast<App::Part*>(parent)) {
                    auto placement = Base::freecad_dynamic_cast<App::PropertyPlacement>(
                                      pcPartParent->getPropertyByName("Placement"));
                    if (placement) {
                        pcLink->Placement.setValue(placement->getValue());
                    }
                }
            }
        }

        // hide the objects since only the cut should later be visible
        itCuts->Visibility.setValue(false);
    }
    return links;
}

double getMinOrMax(QPushButton* button, QDoubleSpinBox* spinBox)
{
    return button->isChecked() ? spinBox->maximum() : spinBox->minimum();
}

void setMinOrMax(double value, QPushButton* button, QDoubleSpinBox* spinBox)
{
    if (button->isChecked()) {
        if (value < spinBox->maximum()) {
            spinBox->setMaximum(value);
        }
    }
    else {
        if (value > spinBox->minimum()) {
            spinBox->setMinimum(value);
        }
    }
}

}

void SectionCut::setObjectsVisible(bool value)
{
    for (auto &aVisObject : ObjectsListVisible) {
        App::DocumentObject* object = aVisObject.getObject();
        if (object) {
            object->Visibility.setValue(value);
        }
    }
}

int SectionCut::getCompoundTransparency() const
{
    // if there was no compound, take the setting for the cut face
    int compoundTransparency = -1;
    if (ui->groupBoxIntersecting->isChecked()) {
        compoundTransparency = ui->BFragTransparencyHS->value();
    }
    if (compoundTransparency == -1) {
        compoundTransparency = ui->CutTransparencyHS->value();
    }

    return compoundTransparency;
}

void SectionCut::startObjectCutting(bool isInitial)
{
    // ObjectsListVisible contains all visible objects of the document, but we can only cut
    // those that have a solid shape
    std::vector<App::DocumentObject*> ObjectsListCut;
    bool isLinkAssembly = findObjects(ObjectsListCut);

    if (isLinkAssembly) {
        // we disable the sliders because for assemblies it will takes ages to do several dozen recomputes
        setSlidersEnabled(false);
        setSlidersToolTip(tr("Sliders are disabled for assemblies"));
    }

    filterObjects(ObjectsListCut);

    // we might have no objects that can be cut
    if (ObjectsListCut.empty()) {
        throwMissingObjectsError(isInitial);
    }

    // disable intersection option because BooleanFragments requires at least 2 objects
    ui->groupBoxIntersecting->setEnabled(ObjectsListCut.size() > 1);

    // we cut this way:
    // 1. put all existing objects into a either a Part::Compound or a BooleanFragments object
    // 2. create a box with the size of the bounding box
    // 3. cut the box from the compound

    // depending on how many cuts should be performed, we need as many boxes
    // if nothing is yet to be cut, we can return
    if (!isCuttingEnabled()) {
        // there is no active cut, so we can enable refresh button
        ui->RefreshCutPB->setEnabled(true);
        return;
    }

    // disable refresh button
    ui->RefreshCutPB->setEnabled(false);

    createAllObjects(ObjectsListCut);
}

std::tuple<Base::Vector3f, Base::Vector3f> SectionCut::adjustRanges()
{
    // the area in which we can cut is the size of the compound
    // we get its size by its bounding box
    SbBox3f CompoundBoundingBox = getViewBoundingBox();
    if (CompoundBoundingBox.isEmpty()) {  // NOLINT
        throw Base::RuntimeError("SectionCut error: the CompoundBoundingBox is empty");
    }

    // refresh all cut limits according to the new bounding box
    refreshCutRanges(CompoundBoundingBox, Refresh::notXValue, Refresh::notYValue,
                     Refresh::notZValue, Refresh::XRange, Refresh::YRange,
                     Refresh::ZRange);

    // prepare the cut box size according to the bounding box size
    Base::Vector3f BoundingBoxSize;
    CompoundBoundingBox.getSize(BoundingBoxSize[0], BoundingBoxSize[1], BoundingBoxSize[2]);
    // get placement of the bounding box origin
    Base::Vector3f BoundingBoxOrigin;
    CompoundBoundingBox.getOrigin(BoundingBoxOrigin[0], BoundingBoxOrigin[1], BoundingBoxOrigin[2]);

    return {BoundingBoxSize, BoundingBoxOrigin};
}

void SectionCut::adjustYRange()
{
    auto CutBoundingBox = getViewBoundingBox();
    // refresh the Y cut limits according to the new bounding box
    refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                     Refresh::notZValue, Refresh::notXRange, Refresh::YRange,
                     Refresh::notZRange);
}

void SectionCut::adjustZRange()
{
    auto CutBoundingBox = getViewBoundingBox();
    refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                     Refresh::notZValue, Refresh::notXRange, Refresh::notYRange,
                     Refresh::ZRange);
}

void SectionCut::resetHasBoxes()
{
    hasBoxX = false;
    hasBoxY = false;
    hasBoxZ = false;
    hasBoxCustom = false;
}

App::DocumentObject* SectionCut::getCutXBase(size_t num,
                                             App::DocumentObject* comp,
                                             App::DocumentObject* frag) const
{
    if (num == 1 || !(ui->groupBoxIntersecting->isChecked())) {
        return comp;
    }

    return frag;
}

App::DocumentObject* SectionCut::getCutYBase(size_t num,
                                             App::DocumentObject* comp,
                                             App::DocumentObject* frag) const
{
    // if there is already a cut, we must take it as feature to be cut
    if (hasBoxX) {
        return doc->getObject(CutXName);
    }

    if (num == 1 || !(ui->groupBoxIntersecting->isChecked())) {
        return comp;
    }

    return frag;
}

App::DocumentObject* SectionCut::getCutZBase(size_t num,
                                             App::DocumentObject* comp,
                                             App::DocumentObject* frag) const
{
    if (hasBoxY) {
        return doc->getObject(CutYName);
    }

    if (hasBoxX && !hasBoxY) {
        return doc->getObject(CutXName);
    }

    if (num == 1 || !(ui->groupBoxIntersecting->isChecked())) {
        return comp;
    }

    return frag;
}

void SectionCut::processXBoxAndCut(const Args& args)
{
    // create a box
    auto [pcBox, pcCut] = tryCreateXBoxAndCut(args.origin, args.size);
    if (!pcBox || !pcCut) {
        return;
    }

    // set box color and transparency
    args.boxFunc(pcBox);

    pcCut->Base.setValue(getCutXBase(args.numObjects, args.partCompound, args.boolFragment));
    pcCut->Tool.setValue(pcBox);
    // we must set the compoundTransparency also for the cut
    args.cutFunc(pcCut);

    // recomputing recursively is especially for assemblies very time-consuming
    // however there must be a final recursicve recompute and we do this at the end
    // so only recomute recursively if there are no other cuts
    pcCut->recomputeFeature(!ui->groupBoxY->isChecked() && !ui->groupBoxZ->isChecked());
    hasBoxX = true;
}

void SectionCut::processYBoxAndCut(const Args& args)
{
    auto [pcBox, pcCut] = tryCreateYBoxAndCut(args.origin, args.size);
    if (!pcBox || !pcCut) {
        return;
    }

    args.boxFunc(pcBox);

    // if there is already a cut, we must take it as feature to be cut
    pcCut->Base.setValue(getCutYBase(args.numObjects, args.partCompound, args.boolFragment));
    pcCut->Tool.setValue(pcBox);
    args.cutFunc(pcCut);

    pcCut->recomputeFeature(!ui->groupBoxZ->isChecked());
    hasBoxY = true;
}

void SectionCut::processZBoxAndCut(const Args& args)
{
    auto [pcBox, pcCut] = tryCreateZBoxAndCut(args.origin, args.size);
    if (!pcBox || !pcCut) {
        return;
    }

    args.boxFunc(pcBox);

    pcCut->Base.setValue(getCutZBase(args.numObjects, args.partCompound, args.boolFragment));
    pcCut->Tool.setValue(pcBox);
    args.cutFunc(pcCut);

    pcCut->recomputeFeature(true);
    hasBoxZ = true;
}

void SectionCut::createAllObjects(const std::vector<App::DocumentObject*>& ObjectsListCut)
{
    // store color and transparency of first object
    App::Color cutColor = getFirstColor(ObjectsListCut);
    long cutTransparency = getFirstTransparency(ObjectsListCut);
    bool autoColor = true;
    bool autoTransparency = true;

    // check if all objects have same color and transparency
    if (ui->autoCutfaceColorCB->isChecked() || ui->autoBFColorCB->isChecked()) {
        autoColor = isAutoColor(cutColor, ObjectsListCut);
        autoTransparency = isAutoTransparency(cutTransparency, ObjectsListCut);
    }

    // create link objects for all found elements
    std::vector<App::DocumentObject*> ObjectsListLinks;
    ObjectsListLinks = createLinks(doc, ObjectsListCut);

    App::DocumentObject* CutCompoundBF = nullptr;
    Part::Compound* CutCompoundPart = nullptr;

    // specify transparency for the compound
    int compoundTransparency = getCompoundTransparency();

    // create BooleanFragments and fill it
    if (ui->groupBoxIntersecting->isChecked() && ObjectsListCut.size() > 1) {
        CutCompoundBF = createBooleanFragments(ObjectsListLinks, compoundTransparency);
    }
    else { // create Part::Compound and fill it
        // if there is only one object to be cut, we cannot create a BooleanFragments object
        CutCompoundPart = createCompound(ObjectsListLinks, compoundTransparency);
    }

    // make all objects invisible so that only the compound remains
    setObjectsVisible(false);

    auto [BoundingBoxSize, BoundingBoxOrigin] = adjustRanges();

    // now we can create the cut boxes
    resetHasBoxes();

    // if automatic, we take this color for the cut
    if (autoColor) {
        setAutoColor(cutColor.asValue<QColor>());
    }
    if (autoTransparency) {
        setAutoTransparency(int(cutTransparency));
    }

    // read cutface color for the cut box
    App::Color boxColor;
    boxColor.setValue<QColor>(ui->CutColor->color());
    int boxTransparency = ui->CutTransparencyHS->value();

    // lambda function to set shape color and transparency
    auto setColorTransparency = [&](Part::Box* pcBox) {
        auto vpBox = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(pcBox));
        if (vpBox) {
            vpBox->ShapeAppearance.setDiffuseColor(boxColor);
            vpBox->Transparency.setValue(boxTransparency);
        }
    };

    // lambda function to set transparency
    auto setTransparency = [&](Part::Cut* pcCut) {
        auto vpCut = dynamic_cast<Gui::ViewProviderGeometryObject*>(
            Gui::Application::Instance->getViewProvider(pcCut));
        if (vpCut) {
            vpCut->Transparency.setValue(compoundTransparency);
        }
    };

    if (ui->groupBoxX->isChecked()) {
        processXBoxAndCut({BoundingBoxOrigin,
                          BoundingBoxSize,
                          ObjectsListCut.size(),
                          CutCompoundPart,
                          CutCompoundBF,
                          setColorTransparency,
                          setTransparency});
    }
    if (ui->groupBoxY->isChecked()) {
        // if there is a X cut, its size defines the possible range for the Y cut
        // the cut box size is not affected, it can be as large as the compound
        if (hasBoxX) {
            adjustYRange();
        }

        processYBoxAndCut({BoundingBoxOrigin,
                          BoundingBoxSize,
                          ObjectsListCut.size(),
                          CutCompoundPart,
                          CutCompoundBF,
                          setColorTransparency,
                          setTransparency});
    }
    if (ui->groupBoxZ->isChecked()) {
        if (hasBoxX || hasBoxY) {
            adjustZRange();
        }

        processZBoxAndCut({BoundingBoxOrigin,
                          BoundingBoxSize,
                          ObjectsListCut.size(),
                          CutCompoundPart,
                          CutCompoundBF,
                          setColorTransparency,
                          setTransparency});
    }
}

SectionCut* SectionCut::makeDockWidget(QWidget* parent)
{
    // embed this dialog into a QDockWidget
    auto sectionCut = new SectionCut(parent);
    Gui::DockWindowManager* pDockMgr = Gui::DockWindowManager::instance();
    // the dialog is designed that you can see the tree, thus put it to the right side
    QDockWidget *dw =
        pDockMgr->addDockWindow("Section Cutting", sectionCut, Qt::RightDockWidgetArea);
    dw->setFeatures(QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetFloatable);
    //dw->setFloating(true);
    dw->show();

    return sectionCut;
}

/** Destroys the object and frees any allocated resources */
SectionCut::~SectionCut()
{
    // there might be no document
    if (!Gui::Application::Instance->activeDocument()) {
        noDocumentActions();
        return;
    }
    if (!ui->keepOnlyCutCB->isChecked()) {
        // make all objects visible that have been visible when the dialog was called
        // because we made them invisible when we created cuts
        setObjectsVisible(true);
    }
}

void SectionCut::reject()
{
    QDialog::reject();
    auto dw = qobject_cast<QDockWidget*>(parent());
    if (dw) {
        dw->deleteLater();
    }
}

void SectionCut::onGroupBoxXtoggled()
{
    // reset the cut
    startCutting();
}

void SectionCut::onGroupBoxYtoggled()
{
    startCutting();
}

void SectionCut::onGroupBoxZtoggled()
{
    startCutting();
}

// helper function for the onFlip_clicked signal
void SectionCut::CutValueHelper(double value, QDoubleSpinBox* SpinBox, QSlider* Slider)
{
    // there might be no document
    if (!Gui::Application::Instance->activeDocument()) {
        noDocumentActions();
        return;
    }
    // refresh objects and return in case the document was changed
    if (doc != Gui::Application::Instance->activeDocument()->getDocument()) {
        onRefreshCutPBclicked();
        return;
    }
    // update slider position and tooltip
    // the slider value is % of the cut range
    if (Slider->isEnabled()) {
        Slider->blockSignals(true);
        Slider->setValue(
            int((value - SpinBox->minimum())
                / (SpinBox->maximum() - SpinBox->minimum()) * 100.0));
        Slider->setToolTip(QString::number(value, 'g', Base::UnitsApi::getDecimals()));
        Slider->blockSignals(false);
    }

    // we cannot cut to the edge because then the result is an empty shape
        // we chose purposely not to simply set the range for cutX previously
        // because everything is allowed just not the min/max
    if (SpinBox->value() == SpinBox->maximum()) {
        SpinBox->setValue(SpinBox->maximum() - 0.1);
        return;
    }
    if (SpinBox->value() == SpinBox->minimum()) {
        SpinBox->setValue(SpinBox->minimum() + 0.1);
        return;
    }
}

double SectionCut::getPosX(Part::Box* box) const
{
    double value {};
    if (!ui->flipX->isChecked()) {
        value = ui->cutX->value() - box->Length.getValue();
    }
    else {
        //flipped
        value = ui->cutX->value();
    }

    return value;
}

double SectionCut::getPosY(Part::Box* box) const
{
    double value {};
    if (!ui->flipY->isChecked()) {
        value = ui->cutY->value() - box->Width.getValue();
    }
    else {
        //flipped
        value = ui->cutY->value();
    }

    return value;
}

double SectionCut::getPosZ(Part::Box* box) const
{
    double value {};
    if (!ui->flipZ->isChecked()) {
        value = ui->cutZ->value() - box->Height.getValue();
    }
    else {
        //flipped
        value = ui->cutZ->value();
    }

    return value;
}

void SectionCut::adjustYZRanges(SbBox3f CutBoundingBox)
{
    if (hasBoxY) {
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                         Refresh::notZValue, Refresh::notXRange, Refresh::YRange,
                         Refresh::ZRange);
        // the value of Y or Z can now be outside or at the limit, in this case reset the value too
        if ((ui->cutY->value() >= ui->cutY->maximum())
            || (ui->cutY->value() <= ui->cutY->minimum())) {
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::YValue,
                             Refresh::notZValue, Refresh::notXRange, Refresh::YRange,
                             Refresh::ZRange);
        }
        if ((ui->cutZ->value() >= ui->cutZ->maximum())
            || (ui->cutZ->value() <= ui->cutZ->minimum())) {
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                             Refresh::ZValue, Refresh::notXRange, Refresh::YRange,
                             Refresh::ZRange);
        }
    }
    else {
        // there is no Y cut yet so we can set the Y value too
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::YValue,
                         Refresh::notZValue, Refresh::notXRange, Refresh::YRange,
                         Refresh::ZRange);
        // the value of Z can now be outside or at the limit, in this case reset the value too
        if ((ui->cutZ->value() >= ui->cutZ->maximum())
            || (ui->cutZ->value() <= ui->cutZ->minimum())) {
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::YValue,
                             Refresh::ZValue, Refresh::notXRange, Refresh::YRange,
                             Refresh::ZRange);
        }
    }
}

void SectionCut::onCutXvalueChanged(double val)
{
    CutValueHelper(val, ui->cutX, ui->cutXHS);

    // get the cut box
    auto CutBox = findObject(BoxXName);
    // when the value has been set after resetting the compound bounding box
    // there is not yet a cut and we do nothing
    if (!CutBox) {
        return;
    }
    auto pcBox = dynamic_cast<Part::Box*>(CutBox);
    if (!pcBox) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(BoxXName)
            + std::string(" is no Part::Box object. Cannot proceed.\n")).c_str());
        return;
    }
    // get its placement and size
    Base::Placement placement = pcBox->Placement.getValue();
    Base::Vector3d BoxPosition = placement.getPosition();
    BoxPosition.x = getPosX(pcBox);

    placement.setPosition(BoxPosition);
    pcBox->Placement.setValue(placement);

    auto CutObject = findOrCreateObject(CutXName);
    // there should be a box, but maybe the user deleted it meanwhile
    if (!CutObject) {
        return;
    }

    // if there is another cut, we must recalculate it too
    // we might have cut so that the range for Y and Z is now smaller
    // the hierarchy is always Z->Y->X
    if (hasBoxY && !hasBoxZ) { // only Y
        auto CutFeatureY = findOrCreateObject(CutYName);
        if (!CutFeatureY) {
            return;
        }
        // refresh the Y and Z cut limits according to the new bounding box of the cut result
        // make the SectionCutY invisible
        CutFeatureY->Visibility.setValue(false);
        // make SectionCutX visible
        CutObject->Visibility.setValue(true);
        // get new bounding box
        auto CutBoundingBox = getViewBoundingBox();
        // refresh Y limits and Z limits + Z value
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue, Refresh::ZValue,
            Refresh::notXRange, Refresh::YRange, Refresh::ZRange);
        // the value of Y can now be outside or at the limit, in this case reset the value too
        if ((ui->cutY->value() >= ui->cutY->maximum())
            || (ui->cutY->value() <= ui->cutY->minimum())) {
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::YValue, Refresh::ZValue,
                Refresh::notXRange, Refresh::YRange, Refresh::ZRange);
        }
        // make the SectionCutY visible again
        CutFeatureY->Visibility.setValue(true);
        // make SectionCutX invisible again
        CutObject->Visibility.setValue(false);
        // recompute the cut
        CutFeatureY->recomputeFeature(true);
    }
    else if (hasBoxZ) { // at least Z
        // the main cut is Z, no matter if there is a cut in Y
        auto CutFeatureZ = findOrCreateObject(CutZName);
        if (!CutFeatureZ) {
            return;
        }
        // refresh the Y and Z cut limits according to the new bounding box of the cut result
        // make the SectionCutZ invisible
        CutFeatureZ->Visibility.setValue(false);
        // make SectionCutX visible
        CutObject->Visibility.setValue(true);
        // refresh Y and Z limits
        adjustYZRanges(getViewBoundingBox());
        // make the SectionCutZ visible again
        CutFeatureZ->Visibility.setValue(true);
        // make SectionCutX invisible again
        CutObject->Visibility.setValue(false);
        // recompute the cut
        CutFeatureZ->recomputeFeature(true);
    }
    else { // just X
        // refresh Y and Z limits + values
        auto CutBoundingBox = getViewBoundingBox();
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::YValue, Refresh::ZValue,
            Refresh::notXRange, Refresh::YRange, Refresh::ZRange);
        // recompute the cut
        auto pcCut = dynamic_cast<Part::Cut*>(CutObject);
        if (!pcCut) {
            Base::Console().Error((std::string("SectionCut error: ") + std::string(CutZName)
                + std::string(" is no Part::Cut object. Cannot proceed.\n")).c_str());
            return;
        }
        pcCut->recomputeFeature(true);
    }
}

void SectionCut::onCutXHSsliderMoved(int val)
{
    // we cannot cut to the edge because then the result is an empty shape
    // we chose purposely not to simply set the range for cutXHS previously
    // because everything is allowed just not the min/max
    // we set it one slider step below the min/max
    if (val == ui->cutXHS->maximum()) {
        ui->cutXHS->setValue(ui->cutXHS->maximum() - ui->cutXHS->singleStep());
        return;
    }
    if (val == ui->cutXHS->minimum()) {
        ui->cutXHS->setValue(ui->cutXHS->minimum() + ui->cutXHS->singleStep());
        return;
    }
    // the slider value is % of the cut range
    double NewCutValue = ui->cutX->minimum()
        + val / 100.0 * (ui->cutX->maximum() - ui->cutX->minimum());
    ui->cutXHS->setToolTip(QString::number(NewCutValue, 'g', Base::UnitsApi::getDecimals()));
    ui->cutX->setValue(NewCutValue);
}

void SectionCut::onCutXHSChanged(int val)
{
    onCutXHSsliderMoved(val);
}

void SectionCut::onCutYvalueChanged(double val)
{
    CutValueHelper(val, ui->cutY, ui->cutYHS);

    auto CutBox = findObject(BoxYName);
    if (!CutBox) {
        return;
    }
    auto pcBox = dynamic_cast<Part::Box*>(CutBox);
    if (!pcBox) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(BoxYName)
            + std::string(" is no Part::Box object. Cannot proceed.\n")).c_str());
        return;
    }
    Base::Placement placement = pcBox->Placement.getValue();
    Base::Vector3d BoxPosition = placement.getPosition();
    BoxPosition.y = getPosY(pcBox);

    placement.setPosition(BoxPosition);
    pcBox->Placement.setValue(placement);

    auto CutObject = findOrCreateObject(CutYName);
    if (!CutObject) {
        return;
    }

    // if there is another cut, we must recalculate it too
    // we might have cut so that the range for Z is now smaller
    // we only need to check for Z since the hierarchy is always Z->Y->X
    if (hasBoxZ) {
        auto CutFeatureZ = findObject(CutZName);
        if (!CutFeatureZ) {
            Base::Console().Error((std::string("SectionCut error: there is no ")
                + std::string(CutZName) + std::string("\n")).c_str());
            return;
        }
        // refresh the Z cut limits according to the new bounding box of the cut result
        // make the SectionCutZ invisible
        CutFeatureZ->Visibility.setValue(false);
        // make SectionCutX visible
        CutObject->Visibility.setValue(true);
        // get new bounding box
        auto CutBoundingBox = getViewBoundingBox();
        // refresh Z limits
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue, Refresh::notZValue,
                         Refresh::notXRange, Refresh::notYRange, Refresh::ZRange);
        // the value of Z can now be outside or at the limit, in this case reset the value too
        if ((ui->cutZ->value() >= ui->cutZ->maximum())
            || (ui->cutZ->value() <= ui->cutZ->minimum())) {
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                             Refresh::ZValue, Refresh::notXRange, Refresh::notYRange,
                             Refresh::ZRange);
        }
        // make the SectionCutZ visible again
        CutFeatureZ->Visibility.setValue(true);
        // make SectionCutX invisible again
        CutObject->Visibility.setValue(false);
        // recompute the cut
        CutFeatureZ->recomputeFeature(true);
    }
    else { // just Y
        // refresh Z limits + values
        auto CutBoundingBox = getViewBoundingBox();
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue, Refresh::ZValue,
            Refresh::notXRange, Refresh::notYRange, Refresh::ZRange);
        // recompute the cut
        auto pcCut = dynamic_cast<Part::Cut*>(CutObject);
        if (!pcCut) {
            Base::Console().Error((std::string("SectionCut error: ") + std::string(CutZName)
                + std::string(" is no Part::Cut object. Cannot proceed.\n")).c_str());
            return;
        }
        pcCut->recomputeFeature(true);
        // refresh X limits
        // this is done by
        // first making the cut X box visible, then setting the limits only for X
        // if x-limit in box direction is larger than object, reset value to saved limit
        if (hasBoxX) {
            auto CutBoxX = findObject(BoxXName);
            if (!CutBoxX) {
                return;
            }
            // first store the values
            double storedX = getMinOrMax(ui->flipX, ui->cutX);

            // show the cutting box
            CutBoxX->Visibility.setValue(true);
            // set new XRange
            auto CutBoundingBox = getViewBoundingBox();
            refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue,
                             Refresh::notZValue, Refresh::XRange, Refresh::notYRange,
                             Refresh::notZRange);
            // hide cutting box and compare resultwith stored value
            CutBoxX->Visibility.setValue(false);
            setMinOrMax(storedX, ui->flipX, ui->cutX);
        }
    }
}

void SectionCut::onCutYHSsliderMoved(int val)
{
    // we cannot cut to the edge because then the result is an empty shape
    if (val == ui->cutYHS->maximum()) {
        ui->cutYHS->setValue(ui->cutYHS->maximum() - ui->cutYHS->singleStep());
        return;
    }
    if (val == ui->cutYHS->minimum()) {
        ui->cutYHS->setValue(ui->cutYHS->minimum() + ui->cutYHS->singleStep());
        return;
    }
    // the slider value is % of the cut range
    double NewCutValue = ui->cutY->minimum()
        + val / 100.0 * (ui->cutY->maximum() - ui->cutY->minimum());
    ui->cutYHS->setToolTip(QString::number(NewCutValue, 'g', Base::UnitsApi::getDecimals()));
    ui->cutY->setValue(NewCutValue);
}

void SectionCut::onCutYHSChanged(int val)
{
    onCutYHSsliderMoved(val);
}

void SectionCut::onCutZvalueChanged(double val)
{
    CutValueHelper(val, ui->cutZ, ui->cutZHS);

    auto CutBox = findObject(BoxZName);
    if (!CutBox) {
        return;
    }
    auto pcBox = dynamic_cast<Part::Box*>(CutBox);
    if (!pcBox) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(BoxZName)
            + std::string(" is no Part::Box object. Cannot proceed.\n")).c_str());
        return;
    }
    Base::Placement placement = pcBox->Placement.getValue();
    Base::Vector3d BoxPosition = placement.getPosition();
    BoxPosition.z = getPosZ(pcBox);

    placement.setPosition(BoxPosition);
    pcBox->Placement.setValue(placement);

    auto CutObject = findOrCreateObject(CutZName);
    if (!CutObject) {
        return;
    }
    auto pcCut = dynamic_cast<Part::Cut*>(CutObject);
    if (!pcCut) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(CutZName)
            + std::string(" is no Part::Cut object. Cannot proceed.\n")).c_str());
        return;
    }
    pcCut->recomputeFeature(true);
    // refresh X and Y limits
    // this is done e.g. for X by
    // first making the cut X box visible, then setting the limits only for X
    // if x-limit in box direction is larger than object, reset value to saved limit
    SbBox3f CutBoundingBox;
    if (hasBoxX) {
        auto CutBoxX = findObject(BoxXName);
        if (!CutBoxX) {
            return;
        }

        // first store the values
        double storedX = getMinOrMax(ui->flipX, ui->cutX);

        // show the cutting box
        CutBoxX->Visibility.setValue(true);
        // set new XRange
        CutBoundingBox = getViewBoundingBox();
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue, Refresh::notZValue,
                         Refresh::XRange, Refresh::notYRange, Refresh::notZRange);
        // hide cutting box and compare resultwith stored value
        CutBoxX->Visibility.setValue(false);

        setMinOrMax(storedX, ui->flipX, ui->cutX);
    }
    if (hasBoxY) {
        auto CutBoxY = findObject(BoxYName);
        if (!CutBoxY) {
            return;
        }
        double storedY = getMinOrMax(ui->flipY, ui->cutY);
        CutBoxY->Visibility.setValue(true);
        CutBoundingBox = getViewBoundingBox();
        refreshCutRanges(CutBoundingBox, Refresh::notXValue, Refresh::notYValue, Refresh::notZValue,
            Refresh::notXRange, Refresh::YRange, Refresh::notZRange);
        CutBoxY->Visibility.setValue(false);
        setMinOrMax(storedY, ui->flipY, ui->cutY);
    }
}

void SectionCut::onCutZHSsliderMoved(int val)
{
    // we cannot cut to the edge because then the result is an empty shape
    if (val == ui->cutZHS->maximum()) {
        ui->cutZHS->setValue(ui->cutZHS->maximum() - ui->cutZHS->singleStep());
        return;
    }
    if (val == ui->cutZHS->minimum()) {
        ui->cutZHS->setValue(ui->cutZHS->minimum() + ui->cutZHS->singleStep());
        return;
    }
    // the slider value is % of the cut range
    double NewCutValue = ui->cutZ->minimum()
        + val / 100.0 * (ui->cutZ->maximum() - ui->cutZ->minimum());
    ui->cutZHS->setToolTip(QString::number(NewCutValue, 'g', Base::UnitsApi::getDecimals()));
    ui->cutZ->setValue(NewCutValue);
}

void SectionCut::onCutZHSChanged(int val)
{
    onCutZHSsliderMoved(val);
}

// helper function for the onFlip_clicked signal
void SectionCut::FlipClickedHelper(const char* BoxName)
{
    // there might be no document
    if (!Gui::Application::Instance->activeDocument()) {
        noDocumentActions();
        return;
    }
    // refresh objects and return in case the document was changed
    if (doc != Gui::Application::Instance->activeDocument()->getDocument()) {
        onRefreshCutPBclicked();
        return;
    }
    // we must move the box e.g. in y-direction by its Width
    auto CutBox = findOrCreateObject(BoxName);
    // there should be a box, but maybe the user deleted it meanwhile
    if (!CutBox) {
        return;
    }
    auto pcBox = dynamic_cast<Part::Box*>(CutBox);
    if (!pcBox) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(BoxName)
            + std::string(" is no Part::Box object. Cannot proceed.\n")).c_str());
        return;
    }
    // get its placement and size
    Base::Placement placement = pcBox->Placement.getValue();
    Base::Vector3d BoxPosition = placement.getPosition();
    // flip the box
    switch (std::string(BoxName).back())
    {
    case 'X':
        if (ui->flipX->isChecked()) {
            BoxPosition.x = BoxPosition.x + pcBox->Length.getValue();
        }
        else {
            BoxPosition.x = BoxPosition.x - pcBox->Length.getValue();
        }
        break;
    case 'Y':
        if (ui->flipY->isChecked()) {
            BoxPosition.y = BoxPosition.y + pcBox->Width.getValue();
        }
        else {
            BoxPosition.y = BoxPosition.y - pcBox->Width.getValue();
        }
        break;
    case 'Z':
        if (ui->flipZ->isChecked()) {
            BoxPosition.z = BoxPosition.z + pcBox->Height.getValue();
        }
        else {
            BoxPosition.z = BoxPosition.z - pcBox->Height.getValue();
        }
        break;
    }
    placement.setPosition(BoxPosition);
    pcBox->Placement.setValue(placement);
}

void SectionCut::onFlipXclicked()
{
    FlipClickedHelper(BoxXName);

    if (auto CutObject = findOrCreateObject(CutXName)) {
        // if there is another cut, we must recalculate it too
        // the hierarchy is always Z->Y->X
        if (hasBoxY && !hasBoxZ) {
            // only Y
            CutObject = findOrCreateObject(CutYName);
        }
        else if ((!hasBoxY && hasBoxZ) || (hasBoxY && hasBoxZ)) {
            // at least Z
            CutObject = findOrCreateObject(CutZName);
        }
        if (auto cut = dynamic_cast<Part::Cut*>(CutObject)) {
            // only do this when there is no other box to save recomputes
            cut->recomputeFeature(true);
        }
    }
}

void SectionCut::onFlipYclicked()
{
    FlipClickedHelper(BoxYName);

    if (auto CutObject = findOrCreateObject(CutYName)) {
        // if there is another cut, we must recalculate it too
        // we only need to check for Z since the hierarchy is always Z->Y->X
        if (hasBoxZ) {
            CutObject = findObject(CutZName);
        }
        if (auto cut = dynamic_cast<Part::Cut*>(CutObject)) {
            cut->recomputeFeature(true);
        }
    }
}

void SectionCut::onFlipZclicked()
{
    FlipClickedHelper(BoxZName);

    if (auto CutObject = findOrCreateObject(CutZName)) {
        CutObject->recomputeFeature(true);
    }
}

Part::Box* SectionCut::findCutBox(const char* name) const
{
    if (auto obj = doc->getObject(name)) {
        auto pcBox = dynamic_cast<Part::Box*>(obj);
        if (!pcBox) {
            throw Base::RuntimeError("SectionCut error: cut box is incorrectly named, cannot proceed");
        }

        return pcBox;
    }

    return nullptr;
}

App::DocumentObject* SectionCut::findObject(const char* objName) const
{
    return doc ? doc->getObject(objName) : nullptr;
}

App::DocumentObject* SectionCut::findOrCreateObject(const char* objName)
{
    auto object = findObject(objName);
    if (!object) {
        Base::Console().Warning((std::string("SectionCut warning: there is no ")
            + std::string(objName) + std::string(", trying to recreate it\n")).c_str());
        startCutting();
        return nullptr;
    }

    return object;
}

// changes the cutface color
void SectionCut::onCutColorclicked()
{
    if (ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked()) {
        changeCutBoxColors();
    }
}

// changes cutbox colors
void SectionCut::changeCutBoxColors()
{
    // a lambda to set box color and transparency
    auto setColorTransparency = [&](App::DocumentObject* boxObject) {
        auto boxVP = Gui::Application::Instance->getViewProvider(boxObject);
        auto boxVPGO = dynamic_cast<Gui::ViewProviderGeometryObject*>(boxVP);
        if (boxVPGO) {
            App::Color boxColor;
            boxColor.setValue<QColor>(ui->CutColor->color());
            boxVPGO->ShapeAppearance.setDiffuseColor(boxColor);
            int boxTransparency = ui->CutTransparencyHS->value();
            boxVPGO->Transparency.setValue(boxTransparency);
        }
    };
    if (doc->getObject(BoxXName)) {
        setColorTransparency(doc->getObject(BoxXName));
    }
    if (doc->getObject(BoxYName)) {
        setColorTransparency(doc->getObject(BoxYName));
    }
    if (doc->getObject(BoxZName)) {
        setColorTransparency(doc->getObject(BoxZName));
    }

    // we must recompute the topmost cut to make the color visible
    // we must hereby first recompute ewvery cut non-recursively in the order X -> Y -> Z
    // eventually recompute the topmost cut recursively
    if (doc->getObject(CutXName)) {
        doc->getObject(CutXName)->recomputeFeature(false);
    }
    if (doc->getObject(CutYName)) {
        doc->getObject(CutYName)->recomputeFeature(false);
    }
    if (doc->getObject(CutZName)) {
        doc->getObject(CutZName)->recomputeFeature(false);
    }
    if (doc->getObject(CutZName)) {
        doc->getObject(CutZName)->recomputeFeature(true);
    }
    else if (doc->getObject(CutYName)) {
        doc->getObject(CutYName)->recomputeFeature(true);
    }
    else if (doc->getObject(CutXName)) {
        doc->getObject(CutXName)->recomputeFeature(true);
    }
}

void SectionCut::onTransparencyHSMoved(int val)
{
    ui->CutTransparencyHS->setToolTip(QString::number(val) + QString::fromLatin1(" %"));
    // highlight the tooltip
    QToolTip::showText(QCursor::pos(), QString::number(val) + QString::fromLatin1(" %"), nullptr);
    if (ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked()) {
        changeCutBoxColors();
    }
}

void SectionCut::onTransparencyHSChanged(int val)
{
    onTransparencyHSMoved(val);
}

// change from/to BooleanFragments compound
void SectionCut::onGroupBoxIntersectingToggled()
{
    // re-cut
    if (ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked()) {
        startCutting();
    }
}

// changes the BooleanFragments color
void SectionCut::onBFragColorclicked()
{
    // when there is no cut yet, there is nothing to do
    if (!(ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked())) {
        return;
    }

    setBooleanFragmentsColor();
    // we must recompute the topmost cut to make the color visible
    if (doc->getObject(CutZName)) {
        doc->getObject(CutZName)->recomputeFeature(true);
    }
    else if (doc->getObject(CutYName)) {
        doc->getObject(CutYName)->recomputeFeature(true);
    }
    else if (doc->getObject(CutXName)) {
        doc->getObject(CutXName)->recomputeFeature(true);
    }
}

// sets BooleanFragments color
void SectionCut::setBooleanFragmentsColor()
{
    App::DocumentObject* compoundObject{};
    if (doc->getObject(CompoundName)) {
        // get the object with the right name
        compoundObject = doc->getObject(CompoundName);
    }
    else {
        Base::Console().Error("SectionCut error: compound is incorrectly named, cannot proceed\n");
        return;
    }
    // assure it is not a Part::Compound
    auto pcCompound = dynamic_cast<Part::Compound*>(compoundObject);
    if (!pcCompound && compoundObject) {
        // check for valid BooleanFragments by accessing its ViewProvider
        auto CompoundBFVP = Gui::Application::Instance->getViewProvider(compoundObject);
        if (!CompoundBFVP) {
            Base::Console().Error("SectionCut error: cannot access ViewProvider of cut compound\n");
            return;
        }
        auto CutCompoundBFGeom = dynamic_cast<Gui::ViewProviderGeometryObject*>(CompoundBFVP);
        if (CutCompoundBFGeom) {
            App::Color BFColor;
            BFColor.setValue<QColor>(ui->BFragColor->color());
            CutCompoundBFGeom->ShapeAppearance.setDiffuseColor(BFColor);
            int BFTransparency = ui->BFragTransparencyHS->value();
            CutCompoundBFGeom->Transparency.setValue(BFTransparency);
            compoundObject->recomputeFeature(false);
        }
    }
}

void SectionCut::onBFragTransparencyHSMoved(int val)
{
    // lambda to set transparency
    auto setTransparency = [&](App::DocumentObject* cutObject) {
        Gui::ViewProvider* CutVP = Gui::Application::Instance->getViewProvider(cutObject);
        if (!CutVP) {
            Base::Console().Error(
                "SectionCut error: cannot access ViewProvider of cut object\n");
            return;
        }
        auto CutVPGeom = dynamic_cast<Gui::ViewProviderGeometryObject*>(CutVP);
        if (CutVPGeom) {
            int BFTransparency = ui->BFragTransparencyHS->value();
            CutVPGeom->Transparency.setValue(BFTransparency);
            cutObject->recomputeFeature(true);
        }
    };

    // Part::Cut ignores the cutbox transparency when it is set
    // to zero and the BooleanFragments transparency is not zero
    // therefore limit the cutbox transparency to 1 in this case
    if (val > 0) {
        ui->CutTransparencyHS->setMinimum(1);
    }
    else {
        ui->CutTransparencyHS->setMinimum(0);
    }

    ui->BFragTransparencyHS->setToolTip(QString::number(val) + QString::fromLatin1(" %"));
    // highlight the tooltip
    QToolTip::showText(QCursor::pos(), QString::number(val) + QString::fromLatin1(" %"), nullptr);

    // when there is no cut yet, there is nothing else to do
    if (ui->groupBoxX->isChecked() || ui->groupBoxY->isChecked() || ui->groupBoxZ->isChecked()) {
        setBooleanFragmentsColor();
        // we must set the transparency to every cut and recompute in the order X -> Y -> Z
        if (doc->getObject(CutXName)) {
            setTransparency(doc->getObject(CutXName));
        }
        if (doc->getObject(CutYName)) {
            setTransparency(doc->getObject(CutYName));
        }
        if (doc->getObject(CutZName)) {
            setTransparency(doc->getObject(CutZName));
        }
    }
}

void SectionCut::onBFragTransparencyHSChanged(int val)
{
    onBFragTransparencyHSMoved(val);
}

// refreshes the list of document objects and the visible objects
void SectionCut::onRefreshCutPBclicked()
{
    // get document
    auto docGui = Gui::Application::Instance->activeDocument();
    if (!docGui) {
        Base::Console().Error("SectionCut error: there is no document\n");
        return;
    }
    doc = docGui->getDocument();
    // get all objects in the document
    std::vector<App::DocumentObject*> ObjectsList = doc->getObjects();
    if (ObjectsList.empty()) {
        Base::Console().Error("SectionCut error: there are no objects in the document\n");
        return;
    }
    // empty the ObjectsListVisible
    ObjectsListVisible.clear();
    // now store those that are currently visible
    for (auto anObject : ObjectsList) {
        if (anObject->Visibility.getValue()) {
            ObjectsListVisible.emplace_back(anObject);
        }
    }
    // disable intersection option because BooleanFragments requires at least 2 objects
    ui->groupBoxIntersecting->setEnabled(ObjectsListVisible.size() > 1);
    // reset defaults
    hasBoxX = false;
    hasBoxY = false;
    hasBoxZ = false;
    // we can have existing cuts
    if (doc->getObject(CutZName)) {
        hasBoxZ = true;
        ui->groupBoxZ->blockSignals(true);
        ui->groupBoxZ->setChecked(true);
        ui->groupBoxZ->blockSignals(false);
    }
    if (doc->getObject(CutYName)) {
        hasBoxY = true;
        ui->groupBoxY->blockSignals(true);
        ui->groupBoxY->setChecked(true);
        ui->groupBoxY->blockSignals(false);
    }
    if (doc->getObject(CutXName)) {
        hasBoxX = true;
        ui->groupBoxX->blockSignals(true);
        ui->groupBoxX->setChecked(true);
        ui->groupBoxX->blockSignals(false);
    }
    // if there is a cut, disable the button
    if (hasBoxX || hasBoxY || hasBoxZ) {
        ui->RefreshCutPB->setEnabled(false);
    }
}

SbBox3f SectionCut::getViewBoundingBox()
{
    SbBox3f Box;
    auto docGui = Gui::Application::Instance->activeDocument();
    if (!docGui) {
        Base::Console().Error("SectionCut error: there is no active document\n");
        return Box; // return an empty box
    }
    auto view = dynamic_cast<Gui::View3DInventor*>(docGui->getActiveView());
    if (!view) {
        Base::Console().Error("SectionCut error: could not get the active view\n");
        return Box; // return an empty box
    }
    Gui::View3DInventorViewer* viewer = view->getViewer();
    SoCamera* camera = viewer->getSoRenderManager()->getCamera();
    if (!camera) {
        return Box; // return an empty box
    }
    // get scene bounding box
    SoGetBoundingBoxAction action(viewer->getSoRenderManager()->getViewportRegion());
    action.apply(viewer->getSceneGraph());
    return action.getBoundingBox();
}

void SectionCut::refreshCutRanges(SbBox3f BoundingBox,
    bool forXValue, bool forYValue, bool forZValue,
    bool forXRange, bool forYRange, bool forZRange)
{
    if (!BoundingBox.isEmpty()) {  // NOLINT
        SbVec3f center = BoundingBox.getCenter();
        int minDecimals = Base::UnitsApi::getDecimals();
        float lenx{};
        float leny{};
        float lenz{};
        BoundingBox.getSize(lenx, leny, lenz);
        const int steps = 100;

        // set the ranges
        float rangeMin{};
        float rangeMax{};
        if (forXRange) {
            rangeMin = center[0] - (lenx / 2);
            rangeMax = center[0] + (lenx / 2);
            ui->cutX->setRange(rangeMin, rangeMax);
            // determine the single step values
            lenx = lenx / float(steps);
            int dim = static_cast<int>(log10(lenx));
            double singleStep = pow(10.0, dim);
            ui->cutX->setSingleStep(singleStep);
        }
        if (forYRange) {
            rangeMin = center[1] - (leny / 2);
            rangeMax = center[1] + (leny / 2);
            ui->cutY->setRange(rangeMin, rangeMax);
            leny = leny / float(steps);
            int dim = static_cast<int>(log10(leny));
            double singleStep = pow(10.0, dim);
            ui->cutY->setSingleStep(singleStep);
        }
        if (forZRange) {
            rangeMin = center[2] - (lenz / 2);
            rangeMax = center[2] + (lenz / 2);
            ui->cutZ->setRange(rangeMin, rangeMax);
            lenz = lenz / float(steps);
            int dim = static_cast<int>(log10(lenz));
            double singleStep = pow(10.0, dim);
            ui->cutZ->setSingleStep(singleStep);
        }
        if (forXValue) {
            ui->cutX->setValue(center[0]);
            ui->cutXHS->setValue(50);
        }
        if (forYValue) {
            ui->cutY->setValue(center[1]);
            ui->cutYHS->setValue(50);
        }
        if (forZValue) {
            ui->cutZ->setValue(center[2]);
            ui->cutZHS->setValue(50);
        }

        // set decimals
        ui->cutX->setDecimals(minDecimals);
        ui->cutY->setDecimals(minDecimals);
        ui->cutZ->setDecimals(minDecimals);
    }
}

App::DocumentObject* SectionCut::CreateBooleanFragments(App::Document* doc)
{
    // NOLINTBEGIN
    // create the object
    Gui::Command::doCommand(Gui::Command::Doc, "import FreeCAD");
    Gui::Command::doCommand(Gui::Command::Doc, "from BOPTools import SplitFeatures");
    Gui::Command::doCommand(Gui::Command::Doc,
                            "SplitFeatures.makeBooleanFragments(name=\"%s\")",
                            CompoundName);
    // check for success
    App::DocumentObject* object = doc->getObject(CompoundName);
    if (!object) {
        Base::Console().Error((std::string("SectionCut error: ") + std::string(CompoundName)
                               + std::string(" could not be added\n")).c_str());
        return nullptr;
    }
    return object;
    // NOLINTEND
}

App::DocumentObject* SectionCut::createBooleanFragments(
        const std::vector<App::DocumentObject*>& links,
        int transparency)
{
    App::DocumentObject* CutCompoundBF = CreateBooleanFragments(doc);
    // the BooleanFragment implementation requires to first add at least 2 objects
    // before any other setting to the BooleanFragment object can be made
    auto CutLinkList = dynamic_cast<App::PropertyLinkList*>(
        CutCompoundBF ? CutCompoundBF->getPropertyByName("Objects") : nullptr);
    if (!CutLinkList) {
        throw Base::RuntimeError((std::string("SectionCut error: ") + std::string(CompoundName)
                               + std::string(" could not be added\n")).c_str());
    }
    CutLinkList->setValue(links);
    // make all objects in the BooleanFragments object invisible to later only show the cut
    for (auto aLinkObj : links) {
        aLinkObj->Visibility.setValue(false);
    }
    // set the transparency
    auto vpCompound = dynamic_cast<Gui::ViewProviderGeometryObject*>(
        Gui::Application::Instance->getViewProvider(CutCompoundBF));
    vpCompound->Transparency.setValue(transparency);
    // set the color
    // setBooleanFragmentsColor also does a non-recursive recompute
    setBooleanFragmentsColor();

    return CutCompoundBF;
}

Part::Compound* SectionCut::createCompound(const std::vector<App::DocumentObject*>& links,
                                           int transparency)
{
    auto CutCompoundPart = dynamic_cast<Part::Compound*>(doc->addObject("Part::Compound", CompoundName));
    if (!CutCompoundPart) {
        throw Base::RuntimeError((std::string("SectionCut error: ") + std::string(CompoundName)
            + std::string(" could not be added\n")).c_str());
    }

    // add the link to the compound
    CutCompoundPart->Links.setValue(links);
    // set the transparency
    auto vpCompound = dynamic_cast<Gui::ViewProviderGeometryObject*>(
        Gui::Application::Instance->getViewProvider(CutCompoundPart));
    vpCompound->Transparency.setValue(transparency);
    CutCompoundPart->recomputeFeature();

    return CutCompoundPart;
}
// NOLINTEND(cppcoreguidelines-avoid-magic-numbers,readability-magic-numbers)

#include "moc_SectionCutting.cpp"
