Files
create/src/Mod/Part/App/AttachExtension.h
2023-08-23 00:55:03 +02:00

138 lines
5.3 KiB
C++

/***************************************************************************
* Copyright (c) 2015 Victor Titov (DeepSOIC) <vv.titov@gmail.com> *
* *
* 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 *
* *
***************************************************************************/
/**
* AttachExtensionh, .cpp contain a extension class to derive other features from, to make
* them attachable.
*/
#ifndef PARTATTACHABLEOBJECT_H
#define PARTATTACHABLEOBJECT_H
#include <App/DocumentObjectExtension.h>
#include <App/ExtensionPython.h>
#include <App/PropertyLinks.h>
#include <App/PropertyStandard.h>
#include <Base/Exception.h>
#include <Base/Placement.h>
#include "Attacher.h"
#include "PartFeature.h"
namespace Part
{
class PartExport AttachEngineException : public Base::Exception
{
public:
/// Construction
AttachEngineException();
explicit AttachEngineException(const char * sMessage);
explicit AttachEngineException(const std::string& sMessage);
/// Destruction
~AttachEngineException() noexcept override = default;
};
/**
* @brief The AttachableObject class is the thing to extend an object with
* that should be attachable. It includes the required properties, and
* shortcuts for accessing the attachment math class.
*/
class PartExport AttachExtension : public App::DocumentObjectExtension
{
EXTENSION_PROPERTY_HEADER_WITH_OVERRIDE(Part::AttachableObject);
public:
AttachExtension();
~AttachExtension() override;
/**
* @brief setAttacher sets the AttachEngine object. The class takes the
* ownership of the pointer, it will be deleted when the class is
* destroyed, or when a new attacher is set. The default attacher is AttachEngine3D.
* @param attacher. AttachableObject takes ownership and will delete it eventually.
*/
virtual void setAttacher(Attacher::AttachEngine* attacher);
/**
* @brief changeAttacherType
* @param typeName is the typename of new attacher class. Must be derived
* from Attacher::AttachEngine.
* @return true if attacher was changed. false if attacher is already of the
* type requested. Throws if invalid type is supplied.
*/
bool changeAttacherType(const char* typeName);
Attacher::AttachEngine &attacher() const {if(!_attacher) throw AttachEngineException("AttachableObject: no attacher is set."); return *_attacher;}
App::PropertyString AttacherType;
App::PropertyLinkSubList Support;
App::PropertyEnumeration MapMode; //see AttachEngine::eMapMode
App::PropertyBool MapReversed; //inverts Z and X internal axes
App::PropertyPlacement AttachmentOffset;
/**
* @brief MapPathParameter is a parameter value for mmNormalToPath (the
* sketch will be mapped normal to a curve at point specified by parameter
* (from 0.0 to 1.0, from start to end) )
*/
App::PropertyFloat MapPathParameter;
/** calculate and update the Placement property based on the Support, and
* mode. Can throw FreeCAD and OCC exceptions. Returns true if attached,
* false if not, throws if attachment failed.
*/
virtual bool positionBySupport();
/** Return whether this attacher is active
*/
bool isAttacherActive() const;
virtual bool isTouched_Mapping()
{return true; /*support.isTouched isn't true when linked objects are changed... why?..*/}
short int extensionMustExecute() override;
App::DocumentObjectExecReturn *extensionExecute() override;
PyObject* getExtensionPyObject() override;
void onExtendedDocumentRestored() override;
protected:
void extensionOnChanged(const App::Property* /*prop*/) override;
virtual void extHandleChangedPropertyName(Base::XMLReader &reader, const char* TypeName, const char* PropName);
App::PropertyPlacement& getPlacement() const;
public:
void updateAttacherVals();
private:
Attacher::AttachEngine* _attacher = nullptr;
mutable int _active = -1;
};
using AttachExtensionPython = App::ExtensionPythonT<AttachExtension>;
} // namespace Part
#endif // PARTATTACHABLEOBJECT_H