Base::Type Class Reference

Type system class Many of the classes in the FreeCAD must have their type information registered before any instances are created (including, but not limited to: App::Feature, App::Property, Gui::ViewProvider ). More...

#include <Type.h>

Public Types
typedef void *(*	instantiationMethod) ()

Public Member Functions
void *	createInstance ()
	creates a instance of this type More...
unsigned int	getKey () const
const char *	getName () const
const Type	getParent () const
bool	isBad () const
bool	isDerivedFrom (const Type type) const
bool	operator!= (const Type type) const
bool	operator< (const Type type) const
bool	operator<= (const Type type) const
void	operator= (const Type type)
bool	operator== (const Type type) const
bool	operator> (const Type type) const
bool	operator>= (const Type type) const
	Type ()
	A constructor. More...
	Type (const Type &type)
	Construction. More...
virtual	~Type ()
	Destruction. More...

Static Public Member Functions
static Type	badType ()
static void *	createInstanceByName (const char *TypeName, bool bLoadModule=false)
	creates a instance of the named type More...
static const Type	createType (const Type parent, const char *name, instantiationMethod method=nullptr)
static void	destruct ()
static Type	fromKey (unsigned int key)
static Type	fromName (const char *name)
static int	getAllDerivedFrom (const Type type, std::vector< Type > &List)
static int	getNumTypes ()
static Type	getTypeIfDerivedFrom (const char *name, const Type parent, bool bLoadModule=false)
	Returns the given named type if is derived from parent type, otherwise return bad type. More...
static void	importModule (const char *TypeName)
static void	init ()

Static Protected Member Functions
static std::string	getModuleName (const char *ClassName)

Detailed Description

Type system class Many of the classes in the FreeCAD must have their type information registered before any instances are created (including, but not limited to: App::Feature, App::Property, Gui::ViewProvider ).

The use of Type to store this information provides lots of various functionality for working with class hierarchies, comparing class types, instantiating objects from classnames, etc etc.

It is for instance possible to do things like this:

void getRightFeature(Base::Base * anode)
{
  assert(anode->getTypeId().isDerivedFrom(App::Feature::getClassTypeId()));
 
  if (anode->getTypeId() == Mesh::MeshFeature::getClassTypeId()) {
    // do something..
  }
  else if (anode->getTypeId() == Part::PartFeature::getClassTypeId()) {
    // do something..
  }
  else {
    Base::Console().Warning("getRightFeature", "Unknown feature type %s!\n",
                              anode->getTypeId().getName());
  }
}

A notable feature of the Type class is that it is only 16 bits long and therefore should be passed around by value for efficiency reasons.

One important note about the use of Type to register class information: super classes must be registered before any of their derived classes are.

Member Typedef Documentation

instantiationMethod

typedef void *(* Base::Type::instantiationMethod) ()

Constructor & Destructor Documentation

Type() [1/2]

Type::Type

(

const Type &

type

)

Construction.

Referenced by ArchPanel.CommandPanelSheet::Activated(), ArchStructure.CommandStructuralSystem::Activated(), draftobjects.draft_annotation.DraftAnnotation::add_missing_properties_0v19(), ArchStructure.StructSelectionObserver::addSelection(), ArchSite.Compass::buildCoordinates(), ArchComponent.Component::execute(), draftobjects.layer.LayerContainer::execute(), ArchSchedule.CommandArchSchedule::IsActive(), draftobjects.layer.Layer::set_properties(), and ArchReference.ArchReference::setProperties().

Type() [2/2]

Type::Type

(

)

A constructor.

A more elaborate description of the constructor.

Referenced by ArchPanel.CommandPanelSheet::Activated(), ArchStructure.CommandStructuralSystem::Activated(), draftobjects.draft_annotation.DraftAnnotation::add_missing_properties_0v19(), ArchStructure.StructSelectionObserver::addSelection(), ArchSite.Compass::buildCoordinates(), ArchComponent.Component::execute(), draftobjects.layer.LayerContainer::execute(), ArchSchedule.CommandArchSchedule::IsActive(), draftobjects.layer.Layer::set_properties(), and ArchReference.ArchReference::setProperties().

~Type()

Type::~Type ( )

virtual

Destruction.

A destructor.

A more elaborate description of the destructor.

Member Function Documentation

badType()

Type Type::badType ( )

static

Referenced by Gui::SelectionSingleton::countObjectsOfType(), createInstanceByName(), fromKey(), fromName(), Gui::SelectionSingleton::getObjectList(), Gui::SelectionSingleton::getObjectsOfType(), getTypeIfDerivedFrom(), Gui::DAG::FilterOrigin::goFilter(), Gui::DAG::FilterTyped::goFilter(), Base::BaseClass::init(), App::Extension::initExtensionSubclass(), Base::BaseClass::initSubclass(), and isDerivedFrom().

createInstance()

void * Type::createInstance

(

)

creates a instance of this type

Referenced by App::DynamicProperty::addDynamicProperty(), Part::PropertyGeometryList::Restore(), TechDraw::PropertyCenterLineList::Restore(), TechDraw::PropertyCosmeticEdgeList::Restore(), TechDraw::PropertyCosmeticVertexList::Restore(), TechDraw::PropertyGeomFormatList::Restore(), App::ExtensionContainer::restoreExtensions(), and Sandbox::DocumentObjectProtectorPy::setattr().

createInstanceByName()

void * Type::createInstanceByName ( const char *  TypeName, bool  bLoadModule = false  )

static

creates a instance of the named type

References badType(), fromName(), and importModule().

Referenced by MeshGui::DlgEvaluateMeshImp::addViewProvider(), Part::AttachExtension::changeAttacherType(), Gui::FreeCADGui_subgraphFromObject(), and App::PropertyPersistentObject::setValue().

createType()

const Type Type::createType ( const Type  parent, const char *  name, instantiationMethod  method = nullptr  )

static

References getKey().

Referenced by Base::BaseClass::init(), App::Extension::initExtensionSubclass(), and Base::BaseClass::initSubclass().

destruct()

void Type::destruct ( )

static

Referenced by App::Application::destruct().

fromKey()

Type Type::fromKey ( unsigned int  key )

static

References badType().

fromName()

Type Type::fromName ( const char *  name )

static

References badType().

Referenced by PartGui::Mirroring::accept(), StdCmdAlignment::activated(), Gui::Application::activateWorkbench(), FemGui::ViewProviderFemAnalysis::canDragObject(), Part::AttachExtension::changeAttacherType(), Part::FaceMaker::ConstructFromType(), Gui::SelectionSingleton::countObjectsOfType(), createInstanceByName(), Gui::Dialog::DlgAddProperty::DlgAddProperty(), Part::AttachExtension::extHandleChangedPropertyName(), PartGui::ViewProviderBoolean::getIcon(), Fem::FemPostFilter::getInputData(), Gui::SelectionSingleton::getObjectsOfType(), TechDrawGui::QGVPage::getStyleType(), getTypeIfDerivedFrom(), Gui::View3DInventorPy::getViewProvidersOfType(), Gui::DAG::FilterOrigin::goFilter(), Gui::DAG::FilterTyped::goFilter(), Fem::FemAnalysis::handleChangedPropertyName(), Part::Circle::handleChangedPropertyName(), Part::Ellipse::handleChangedPropertyName(), Part::BodyBase::handleChangedPropertyName(), PartDesign::Boolean::handleChangedPropertyName(), Surface::Extend::handleChangedPropertyName(), TechDraw::DrawViewBalloon::handleChangedPropertyName(), PartGui::ViewProvider2DObjectGrid::handleChangedPropertyType(), PartDesign::Transformed::handleChangedPropertyType(), Part::Primitive::handleChangedPropertyType(), App::Extension::initExtensionSubclass(), Base::BaseClass::initSubclass(), Gui::Node_Object::Node_Object(), Gui::View3DInventor::OnChange(), Gui::GraphicsView3D::OnChange(), FemGui::ViewProviderFemPostObject::onChanged(), Gui::NavigationStyle::openPopupMenu(), Gui::Dialog::find_placement::operator()(), Gui::Dialog::find_transform::operator()(), Fem::FemVTKTools::readResult(), Part::Geometry::Restore(), Part::PropertyGeometryList::Restore(), TechDraw::PropertyCenterLineList::Restore(), TechDraw::PropertyCosmeticEdgeList::Restore(), TechDraw::PropertyCosmeticVertexList::Restore(), TechDraw::PropertyGeomFormatList::Restore(), App::ExtensionContainer::restoreExtensions(), Gui::TreeView::rowsInserted(), Gui::Application::sActivateView(), Gui::Application::sActiveView(), Gui::View3DInventorPy::setNavigationType(), App::PropertyPersistentObject::setValue(), AttacherGui::AttacherGuiPy::sGetModeStrings(), InspectionGui::ViewProviderInspection::updateData(), App::PropertyLinkSubList::upgrade(), and InspectionGui::VisualInspection::VisualInspection().

getAllDerivedFrom()

int Type::getAllDerivedFrom ( const Type  type, std::vector< Type > &  List  )

static

Referenced by Gui::Dialog::DlgAddProperty::DlgAddProperty(), Gui::UserNavigationStyle::getUserFriendlyNames(), and Gui::View3DInventorPy::listNavigationTypes().

getKey()

unsigned int Base::Type::getKey

(

)

const

Referenced by createType(), Gui::PropertyView::onTimer(), operator!=(), operator<(), operator<=(), operator==(), operator>(), and operator>=().

getModuleName()

string Type::getModuleName ( const char *  ClassName )

staticprotected

Referenced by importModule().

getName()

const char * Type::getName

(

)

const

Referenced by PartDesignGui::TaskDlgFeatureParameters::accept(), StdCmdToggleSelectability::activated(), App::Document::addObject(), Gui::View3DInventor::customEvent(), Gui::DocumentObjectItem::displayStatusInfo(), Gui::ViewProvider::eventCallback(), Gui::View3DInventorPy::getNavigationType(), App::OriginGroupExtension::getOrigin(), AttacherGui::getUIStrings(), PartDesign::Fillet::handleChangedPropertyType(), Part::Part2DObject::handleChangedPropertyType(), PartDesign::Chamfer::handleChangedPropertyType(), TechDraw::DrawPage::handleChangedPropertyType(), TechDraw::DrawView::handleChangedPropertyType(), Gui::Dialog::DlgPropertyLink::init(), App::Extension::name(), Gui::ViewProviderLink::onChanged(), Base::XMLReader::readFiles(), App::PropertyLinkList::Restore(), Part::GeometryPersistenceExtension::Save(), Part::AttachExtension::setAttacher(), InspectionGui::ViewProviderInspection::setDistances(), and App::LinkBaseExtension::setProperty().

getNumTypes()

int Type::getNumTypes ( )

static

getParent()

const Type Type::getParent

(

)

const

Referenced by Gui::Dialog::DlgPropertyLink::init(), and isDerivedFrom().

getTypeIfDerivedFrom()

Type Type::getTypeIfDerivedFrom ( const char *  name, const Type  parent, bool  bLoadModule = false  )

static

Returns the given named type if is derived from parent type, otherwise return bad type.

References badType(), fromName(), and importModule().

Referenced by App::DynamicProperty::addDynamicProperty(), App::Document::addObject(), App::Document::addObjects(), Gui::WorkbenchManager::createWorkbench(), Gui::View3DInventorViewer::setNavigationType(), and Gui::Document::slotNewObject().

importModule()

void Type::importModule ( const char *  TypeName )

static

References Base::Console(), getModuleName(), Base::Interpreter(), Base::InterpreterSingleton::loadModule(), and Base::ConsoleSingleton::Log().

Referenced by createInstanceByName(), getTypeIfDerivedFrom(), and App::PropertyPersistentObject::setValue().

init()

void Type::init ( void  )

static

Referenced by App::Application::initTypes(), and DocumentObject.DocumentObject::onChanged().

isBad()

bool Base::Type::isBad

(

)

const

Referenced by App::DynamicProperty::addDynamicProperty(), Part::FaceMaker::ConstructFromType(), Gui::Dialog::DlgPropertyLink::init(), App::Extension::initExtension(), App::Extension::initExtensionType(), App::Extension::name(), App::ExtensionContainer::restoreExtensions(), and Gui::Document::setActiveView().

isDerivedFrom()

bool Type::isDerivedFrom

(

const Type

type

)

const

References badType(), and getParent().

Referenced by PartDesignGui::TaskDlgFeatureParameters::accept(), PartDesignGui::TaskDlgSketchBasedParameters::accept(), StdCmdGroup::activated(), Gui::Application::activateWorkbench(), MeshGui::DlgEvaluateMeshImp::addViewProvider(), SketcherGui::FilletSelection::allow(), SketcherGui::TrimmingSelection::allow(), PartDesignGui::ReferenceSelection::allow(), SketcherGui::ExternalSelection::allow(), Gui::QuantitySpinBox::apply(), PartDesignGui::collectMovableDependencies(), Gui::Document::createView(), MeshGui::ViewProviderMeshCurvature::curvatureInfoCallback(), Sketcher::SketchObject::evaluateSupport(), Drawing::FeatureProjection::execute(), Drawing::FeatureViewPart::execute(), Drawing::FeatureViewSpreadsheet::execute(), Inspection::Feature::execute(), PartDesign::Pipe::execute(), Raytracing::LuxFeature::execute(), Raytracing::RayFeature::execute(), Robot::Edge2TracObject::execute(), Robot::TrajectoryDressUpObject::execute(), Surface::Filling::execute(), TechDraw::DrawViewSpreadsheet::execute(), TechDraw::FeatureProjection::execute(), PartDesign::Body::execute(), Surface::Extend::execute(), TechDraw::DrawViewDetail::execute(), MeshGui::ViewProviderMesh::faceInfoCallback(), MeshGui::ViewProviderMesh::fillHoleCallback(), PartDesign::ProfileBased::getAxis(), PartDesign::Feature::getBaseObject(), InspectionGui::ViewProviderInspection::getIcon(), Fem::FemPostFilter::getInputData(), TechDraw::ShapeExtractor::getShapesFromObject(), PartDesign::Transformed::getSketchObject(), PartDesign::ProfileBased::getSupportFace(), PartDesign::MultiTransform::getTransformations(), PartDesign::Scaled::getTransformations(), PartDesign::LinearPattern::getTransformations(), PartDesign::Mirrored::getTransformations(), PartDesign::PolarPattern::getTransformations(), AttacherGui::getUIStrings(), PartGui::ViewProvider2DObjectGrid::handleChangedPropertyType(), PartDesign::Transformed::handleChangedPropertyType(), Part::Primitive::handleChangedPropertyType(), Gui::Dialog::DlgPropertyLink::init(), InspectionGui::ViewProviderInspection::inspectCallback(), InspectionGui::ViewProviderInspection::inspectDistance(), PartDesign::Feature::isDatum(), Base::BaseClass::isDerivedFrom(), PartDesignGui::isFeatureMovable(), TechDrawGui::QGIProjGroup::itemChange(), PartDesignGui::TaskFeaturePick::makeCopy(), MeshGui::ViewProviderMesh::markPartCallback(), Gui::TreeView::mouseDoubleClickEvent(), Gui::Dialog::DlgMaterialPropertiesImp::on_ambientColor_changed(), Gui::Dialog::DlgMaterialPropertiesImp::on_diffuseColor_changed(), Gui::Dialog::DlgMaterialPropertiesImp::on_emissiveColor_changed(), Gui::Dialog::DlgMaterialPropertiesImp::on_shininess_valueChanged(), Gui::Dialog::DlgMaterialPropertiesImp::on_specularColor_changed(), PartDesignGui::TaskBooleanParameters::onSelectionChanged(), Gui::ManualAlignment::probePickedCallback(), Sketcher::SketchObject::rebuildExternalGeometry(), App::ExtensionContainer::registerExtension(), SketcherGui::DrawSketchHandlerFillet::releaseButton(), SketcherGui::DrawSketchHandlerTrimming::releaseButton(), PartDesignGui::relinkToOrigin(), App::PropertyLinkList::Restore(), App::ExtensionContainer::restoreExtensions(), PartGui::FaceColors::Private::selectionCallback(), Gui::Document::setHide(), Gui::Document::setShow(), Gui::Application::setupContextMenu(), Gui::Dialog::DlgMaterialPropertiesImp::setViewProviders(), Gui::Document::slotDeletedObject(), Gui::ManualAlignment::slotDeletedObject(), FemGui::TaskFemConstraintFluidBoundary::TaskFemConstraintFluidBoundary(), Gui::TaskView::TaskSelectLinkProperty::TaskSelectLinkProperty(), Gui::SelectionFilter::test(), Gui::PropertyEditor::PropertyMatrixItem::toolTip(), Gui::PropertyEditor::PropertyRotationItem::toolTip(), Gui::PropertyEditor::PropertyPlacementItem::toolTip(), Gui::PropertyEditor::PropertyMaterialItem::toolTip(), Gui::PropertyEditor::PropertyMaterialListItem::toolTip(), InspectionGui::ViewProviderInspection::updateData(), MeshGui::ViewProviderMeshCurvature::updateData(), PartGui::ViewProviderBoolean::updateData(), PartGui::ViewProviderMultiFuse::updateData(), PartGui::ViewProviderMultiCommon::updateData(), PartGui::ViewProviderCompound::updateData(), PartGui::ViewProviderCustom::updateData(), PathGui::ViewProviderArea::updateData(), PathGui::ViewProviderAreaView::updateData(), PathGui::ViewProviderPathShape::updateData(), SketcherGui::ViewProviderCustom::updateData(), Sketcher::SketchObject::validateExternalLinks(), Gui::PropertyEditor::PropertyStringItem::value(), Gui::PropertyEditor::PropertyFontItem::value(), Gui::PropertyEditor::PropertyIntegerItem::value(), Gui::PropertyEditor::PropertyIntegerConstraintItem::value(), Gui::PropertyEditor::PropertyFloatItem::value(), Gui::PropertyEditor::PropertyUnitItem::value(), Gui::PropertyEditor::PropertyFloatConstraintItem::value(), Gui::PropertyEditor::PropertyBoolItem::value(), Gui::PropertyEditor::PropertyVectorItem::value(), Gui::PropertyEditor::PropertyVectorListItem::value(), Gui::PropertyEditor::PropertyVectorDistanceItem::value(), Gui::PropertyEditor::PropertyMatrixItem::value(), Gui::PropertyEditor::PropertyRotationItem::value(), Gui::PropertyEditor::PropertyPlacementItem::value(), Gui::PropertyEditor::PropertyEnumItem::value(), Gui::PropertyEditor::PropertyStringListItem::value(), Gui::PropertyEditor::PropertyFloatListItem::value(), Gui::PropertyEditor::PropertyIntegerListItem::value(), Gui::PropertyEditor::PropertyColorItem::value(), Gui::PropertyEditor::PropertyMaterialItem::value(), Gui::PropertyEditor::PropertyMaterialListItem::value(), Gui::PropertyEditor::PropertyFileItem::value(), Gui::PropertyEditor::PropertyPathItem::value(), Gui::PropertyEditor::PropertyTransientFileItem::value(), SketcherGui::PropertyConstraintListItem::value(), and MeshPartGui::CurveOnMeshHandler::Private::vertexCallback().

operator!=()

bool Base::Type::operator!=

(

const Type

type

)

const

References getKey().

operator<()

bool Base::Type::operator<

(

const Type

type

)

const

References getKey().

operator<=()

bool Base::Type::operator<=

(

const Type

type

)

const

References getKey().

operator=()

void Base::Type::operator=

(

const Type

type

)

operator==()

bool Base::Type::operator==

(

const Type

type

)

const

References getKey().

operator>()

bool Base::Type::operator>

(

const Type

type

)

const

References getKey().

operator>=()

bool Base::Type::operator>=

(

const Type

type

)

const

References getKey().

---

The documentation for this class was generated from the following files:

• FreeCAD/src/Base/Type.h
• FreeCAD/src/Base/Type.cpp