FreeCAD/src/Mod/PartDesign/App/Body.cpp
2016-04-12 18:11:49 +02:00

339 lines
13 KiB
C++

/***************************************************************************
* Copyright (c) 2010 Juergen Riegel <FreeCAD@juergen-riegel.net> *
* *
* 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 <Base/Placement.h>
#include "Feature.h"
#include "DatumFeature.h"
#include "Body.h"
#include "BodyPy.h"
#include <App/Application.h>
#include <App/Document.h>
#include <Base/Console.h>
#include "FeatureSketchBased.h"
using namespace PartDesign;
namespace PartDesign {
PROPERTY_SOURCE(PartDesign::Body, Part::BodyBase)
Body::Body()
{
ADD_PROPERTY(IsActive,(0));
}
/*
// Note: The following code will catch Python Document::removeObject() modifications. If the object removed is
// a member of the Body::Model, then it will be automatically removed from the Model property which triggers the
// following two methods
// But since we require the Python user to call both Document::addObject() and Body::addFeature(), we should
// also require calling both Document::removeObject and Body::removeFeature() in order to be consistent
void Body::onBeforeChange(const App::Property *prop)
{
// Remember the feature before the current Tip. If the Tip is already at the first feature, remember the next feature
if (prop == &Model) {
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) {
rememberTip = NULL;
} else {
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), Tip.getValue());
if (it == features.begin()) {
it++;
if (it == features.end())
rememberTip = NULL;
else
rememberTip = *it;
} else {
it--;
rememberTip = *it;
}
}
}
return Part::Feature::onBeforeChange(prop);
}
void Body::onChanged(const App::Property *prop)
{
if (prop == &Model) {
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) {
Tip.setValue(NULL);
} else {
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), Tip.getValue());
if (it == features.end()) {
// Tip feature was deleted
Tip.setValue(rememberTip);
}
}
}
return Part::Feature::onChanged(prop);
}
*/
short Body::mustExecute() const
{
if (Tip.isTouched() )
return 1;
return 0;
}
const Part::TopoShape Body::getTipShape()
{
// TODO right selection for Body
App::DocumentObject* link = Tip.getValue();
if (!link)
return Part::TopoShape();
if (!link->getTypeId().isDerivedFrom(Part::Feature::getClassTypeId()))
//return new App::DocumentObjectExecReturn("Linked object is not a PartDesign object");
return Part::TopoShape();
// get the shape of the tip
return static_cast<Part::Feature*>(link)->Shape.getShape();
}
App::DocumentObject* Body::getPrevSolidFeature(App::DocumentObject *start, const bool inclusive)
{
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) return NULL;
App::DocumentObject* st = (start == NULL ? Tip.getValue() : start);
if (inclusive && isSolidFeature(st))
return st;
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), st);
if (it == features.end()) return NULL; // Invalid start object
// Skip sketches and datum features
do {
if (it == features.begin())
return NULL;
it--;
} while (!isSolidFeature(*it));
return *it;
}
App::DocumentObject* Body::getNextSolidFeature(App::DocumentObject *start, const bool inclusive)
{
std::vector<App::DocumentObject*> features = Model.getValues();
if (features.empty()) return NULL;
App::DocumentObject* st = (start == NULL ? Tip.getValue() : start);
if (inclusive && isSolidFeature(st))
return st;
std::vector<App::DocumentObject*>::iterator it = std::find(features.begin(), features.end(), st);
if (it == features.end()) return NULL; // Invalid start object
// Skip sketches and datum features
do {
it++;
if (it == features.end())
return NULL;
} while (!isSolidFeature(*it));
return *it;
}
const bool Body::hasFeature(const App::DocumentObject* f) const
{
const std::vector<App::DocumentObject*> features = Model.getValues();
return std::find(features.begin(), features.end(), f) != features.end();
}
const bool Body::isAfterTip(const App::DocumentObject *f) {
std::vector<App::DocumentObject*> features = Model.getValues();
std::vector<App::DocumentObject*>::const_iterator it = std::find(features.begin(), features.end(), f);
std::vector<App::DocumentObject*>::const_iterator tip = std::find(features.begin(), features.end(), Tip.getValue());
return (it > tip);
}
const bool Body::isSolidFeature(const App::DocumentObject* f)
{
return (f->getTypeId().isDerivedFrom(PartDesign::Feature::getClassTypeId()) &&
!f->getTypeId().isDerivedFrom(PartDesign::Datum::getClassTypeId()));
}
Body* Body::findBodyOf(const App::DocumentObject* f)
{
App::Document* doc = App::GetApplication().getActiveDocument();
if (doc != NULL) {
std::vector<App::DocumentObject*> bodies = doc->getObjectsOfType(PartDesign::Body::getClassTypeId());
for (std::vector<App::DocumentObject*>::const_iterator b = bodies.begin(); b != bodies.end(); b++) {
PartDesign::Body* body = static_cast<PartDesign::Body*>(*b);
if (body->hasFeature(f))
return body;
}
}
return NULL;
}
void Body::addFeature(App::DocumentObject *feature)
{
// Set the BaseFeature property
// Note: This is not strictly necessary for Datum features
if (feature->getTypeId().isDerivedFrom(PartDesign::Feature::getClassTypeId())) {
App::DocumentObject* prevSolidFeature = getPrevSolidFeature(NULL, true);
if (prevSolidFeature != NULL)
// Set BaseFeature property to previous feature (this might be the Tip feature)
static_cast<PartDesign::Feature*>(feature)->BaseFeature.setValue(prevSolidFeature);
}
if (Body::isSolidFeature(feature)) {
// Reroute the next solid feature's BaseFeature property to this feature
App::DocumentObject* nextSolidFeature = getNextSolidFeature(NULL, false);
if (nextSolidFeature != NULL)
static_cast<PartDesign::Feature*>(nextSolidFeature)->BaseFeature.setValue(feature);
}
// Insert the new feature after the current Tip feature
App::DocumentObject* tipFeature = Tip.getValue();
std::vector<App::DocumentObject*> model = Model.getValues();
if (tipFeature == NULL) {
if (model.empty())
// First feature in the body
model.push_back(feature);
else
throw Base::Exception("Body has features, but Tip is not valid");
} else {
// Insert after Tip
std::vector<App::DocumentObject*>::iterator it = std::find(model.begin(), model.end(), tipFeature);
if (it == model.end())
throw Base::Exception("Body: Tip is not contained in model");
it++;
if (it == model.end())
model.push_back(feature);
else
model.insert(it, feature);
}
Model.setValues(model);
// Move the Tip
Tip.setValue(feature);
}
void Body::removeFeature(App::DocumentObject* feature)
{
// This method must be called BEFORE the feature is removed from the Document!
if (isSolidFeature(feature)) {
// This is a solid feature
// If the next feature is solid, reroute its BaseFeature property to the previous solid feature
App::DocumentObject* nextSolidFeature = getNextSolidFeature(feature, false);
if (nextSolidFeature != NULL) {
App::DocumentObject* prevSolidFeature = getPrevSolidFeature(feature, false);
PartDesign::Feature* nextFeature = static_cast<PartDesign::Feature*>(nextSolidFeature);
if ((prevSolidFeature == NULL) && (nextFeature->BaseFeature.getValue() != NULL))
// sanity check
throw Base::Exception((std::string("Body: Base feature of ") + nextFeature->getNameInDocument() + " was removed!").c_str());
nextFeature->BaseFeature.setValue(prevSolidFeature);
}
}
std::vector<App::DocumentObject*> model = Model.getValues();
std::vector<App::DocumentObject*>::iterator it = std::find(model.begin(), model.end(), feature);
// Adjust Tip feature if it is pointing to the deleted object
App::DocumentObject* tipFeature = Tip.getValue();
if (tipFeature == feature) {
// Set the Tip to the previous feature if possible, otherwise to the next feature
std::vector<App::DocumentObject*>::const_iterator prev = it, next = it;
if (it != model.begin()) {
prev--;
next++;
if (prev != model.end()) {
Tip.setValue(*prev);
} else {
if (next != model.end())
Tip.setValue(*next);
else
Tip.setValue(NULL);
}
} else {
next++;
if (next != model.end())
Tip.setValue(*next);
else
Tip.setValue(NULL);
}
}
// Erase feature from Model
model.erase(it);
Model.setValues(model);
}
App::DocumentObjectExecReturn *Body::execute(void)
{
Base::Console().Error("Body '%s':\n", getNameInDocument());
App::DocumentObject* tip = Tip.getValue();
Base::Console().Error(" Tip: %s\n", (tip == NULL) ? "None" : tip->getNameInDocument());
std::vector<App::DocumentObject*> model = Model.getValues();
Base::Console().Error(" Model:\n");
for (std::vector<App::DocumentObject*>::const_iterator m = model.begin(); m != model.end(); m++) {
if (*m == NULL) continue;
Base::Console().Error(" %s", (*m)->getNameInDocument());
if (Body::isSolidFeature(*m)) {
App::DocumentObject* baseFeature = static_cast<PartDesign::Feature*>(*m)->BaseFeature.getValue();
Base::Console().Error(", Base: %s\n", baseFeature == NULL ? "None" : baseFeature->getNameInDocument());
} else {
Base::Console().Error("\n");
}
}
const Part::TopoShape& TipShape = getTipShape();
if (TipShape._Shape.IsNull())
//return new App::DocumentObjectExecReturn("empty shape");
return App::DocumentObject::StdReturn;
Shape.setValue(TipShape);
return App::DocumentObject::StdReturn;
}
PyObject *Body::getPyObject(void)
{
if (PythonObject.is(Py::_None())){
// ref counter is set to 1
PythonObject = Py::Object(new BodyPy(this),true);
}
return Py::new_reference_to(PythonObject);
}
}