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AttachExtension.cpp
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AttachExtension.cpp
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/***************************************************************************
* Copyright (c) Victor Titov (DeepSOIC) *
* (vv.titov@gmail.com) 2015 *
* *
* 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_
#endif
#include "AttachExtension.h"
#include <Base/Console.h>
#include <App/Application.h>
#include <App/DocumentObject.h>
#include <App/FeaturePythonPyImp.h>
#include "AttachExtensionPy.h"
using namespace Part;
using namespace Attacher;
EXTENSION_PROPERTY_SOURCE(Part::AttachExtension, App::DocumentObjectExtension);
AttachExtension::AttachExtension()
: _attacher(0)
{
EXTENSION_ADD_PROPERTY_TYPE(AttacherType, ("Attacher::AttachEngine3D"), "Attachment",(App::PropertyType)(App::Prop_None),"Class name of attach engine object driving the attachment.");
this->AttacherType.setStatus(App::Property::Status::Hidden, true);
EXTENSION_ADD_PROPERTY_TYPE(Support, (0,0), "Attachment",(App::PropertyType)(App::Prop_None),"Support of the 2D geometry");
EXTENSION_ADD_PROPERTY_TYPE(MapMode, (mmDeactivated), "Attachment", App::Prop_None, "Mode of attachment to other object");
MapMode.setEnums(AttachEngine::eMapModeStrings);
//a rough test if mode string list in Attacher.cpp is in sync with eMapMode enum.
assert(MapMode.getEnumVector().size() == mmDummy_NumberOfModes);
EXTENSION_ADD_PROPERTY_TYPE(MapReversed, (false), "Attachment", App::Prop_None, "Reverse Z direction (flip sketch upside down)");
EXTENSION_ADD_PROPERTY_TYPE(MapPathParameter, (0.0), "Attachment", App::Prop_None, "Sets point of curve to map the sketch to. 0..1 = start..end");
EXTENSION_ADD_PROPERTY_TYPE(superPlacement, (Base::Placement()), "Attachment", App::Prop_None, "Extra placement to apply in addition to attachment (in local coordinates)");
setAttacher(new AttachEngine3D);//default attacher
initExtensionType(AttachExtension::getExtensionClassTypeId());
}
AttachExtension::~AttachExtension()
{
if(_attacher)
delete _attacher;
}
void AttachExtension::setAttacher(AttachEngine* attacher)
{
if (_attacher)
delete _attacher;
_attacher = attacher;
if (_attacher){
const char* typeName = attacher->getTypeId().getName();
if(strcmp(this->AttacherType.getValue(),typeName)!=0) //make sure we need to change, to break recursive onChange->changeAttacherType->onChange...
this->AttacherType.setValue(typeName);
updateAttacherVals();
} else {
if (strlen(AttacherType.getValue()) != 0){ //make sure we need to change, to break recursive onChange->changeAttacherType->onChange...
this->AttacherType.setValue("");
}
}
}
bool AttachExtension::changeAttacherType(const char* typeName)
{
//check if we need to actually change anything
if (_attacher){
if (strcmp(_attacher->getTypeId().getName(),typeName)==0){
return false;
}
} else if (strlen(typeName) == 0){
return false;
}
if (strlen(typeName) == 0){
setAttacher(nullptr);
return true;
}
Base::Type t = Base::Type::fromName(typeName);
if (t.isDerivedFrom(AttachEngine::getClassTypeId())){
AttachEngine* pNewAttacher = static_cast<Attacher::AttachEngine*>(Base::Type::createInstanceByName(typeName));
this->setAttacher(pNewAttacher);
return true;
} else {
std::stringstream errMsg;
errMsg << "Object if this type is not derived from AttachEngine: " << typeName;
throw Base::Exception(errMsg.str());
}
assert(false);//exec shouldn't ever get here
return false;
}
bool AttachExtension::positionBySupport()
{
if (!_attacher)
throw Base::Exception("AttachExtension: can't positionBySupport, because no AttachEngine is set.");
updateAttacherVals();
try{
getPlacement().setValue(_attacher->calculateAttachedPlacement(getPlacement().getValue()));
return true;
} catch (ExceptionCancel) {
//disabled, don't do anything
return false;
};
}
short int AttachExtension::extensionMustExecute(void) {
return DocumentObjectExtension::extensionMustExecute();
}
App::DocumentObjectExecReturn *AttachExtension::extensionExecute()
{
if(this->isTouched_Mapping()) {
if (!_attacher)
throw Base::Exception("AttachExtension: can't positionBySupport, because no AttachEngine is set.");
updateAttacherVals();
SuggestResult sr;
_attacher->suggestMapModes(sr);
bool acceptableattachment = false;
for(std::vector<eMapMode>::const_iterator it = sr.allApplicableModes.begin() ; it != sr.allApplicableModes.end(); it++)
{
if ( (*it) == eMapMode(this->MapMode.getValue()))
acceptableattachment = true;
}
try{
if(acceptableattachment) {
positionBySupport();
}
else {
std::vector<App::DocumentObject*> Objects = this->Support.getValues();
std::vector<std::string> SubElements = this->Support.getSubValues();
Objects.clear();
SubElements.clear();
this->Support.setValues(Objects,SubElements);
}
} catch (Base::Exception &e) {
return new App::DocumentObjectExecReturn(e.what());
} catch (Standard_Failure &e){
return new App::DocumentObjectExecReturn(e.GetMessageString());
}
}
return App::DocumentObjectExtension::extensionExecute();
}
void AttachExtension::extensionOnChanged(const App::Property* prop)
{
if(! getExtendedObject()->isRestoring()){
if ((prop == &Support
|| prop == &MapMode
|| prop == &MapPathParameter
|| prop == &MapReversed
|| prop == &superPlacement)){
bool bAttached = false;
try{
bAttached = positionBySupport();
} catch (Base::Exception &e) {
getExtendedObject()->setStatus(App::Error, true);
Base::Console().Error("PositionBySupport: %s",e.what());
//set error message - how?
} catch (Standard_Failure &e){
getExtendedObject()->setStatus(App::Error, true);
Base::Console().Error("PositionBySupport: %s",e.GetMessageString());
}
eMapMode mmode = eMapMode(this->MapMode.getValue());
this->superPlacement.setReadOnly(!bAttached);
getPlacement().setReadOnly(bAttached && mmode != mmTranslate); //for mmTranslate, orientation should remain editable even when attached.
}
}
if(prop == &(this->AttacherType)){
this->changeAttacherType(this->AttacherType.getValue());
}
App::DocumentObjectExtension::extensionOnChanged(prop);
}
void AttachExtension::updateAttacherVals()
{
if (!_attacher)
return;
_attacher->setUp(this->Support,
eMapMode(this->MapMode.getValue()),
this->MapReversed.getValue(),
this->MapPathParameter.getValue(),
0.0,0.0,
this->superPlacement.getValue());
}
App::PropertyPlacement& AttachExtension::getPlacement() {
if(!getExtendedObject()->isDerivedFrom(App::GeoFeature::getClassTypeId()))
throw Base::Exception("AttachExtension not added to GeooFeature!");
return static_cast<App::GeoFeature*>(getExtendedObject())->Placement;
}
PyObject* AttachExtension::getExtensionPyObject(void) {
if (ExtensionPythonObject.is(Py::_None())){
// ref counter is set to 1
ExtensionPythonObject = Py::Object(new AttachExtensionPy(this),true);
}
return Py::new_reference_to(ExtensionPythonObject);
}
namespace App {
/// @cond DOXERR
EXTENSION_PROPERTY_SOURCE_TEMPLATE(Part::AttachExtensionPython, Part::AttachExtension)
/// @endcond
// explicit template instantiation
template class PartExport ExtensionPythonT<Part::AttachExtension>;
}