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658cdc8309cd4a9c3abfe480e7baba323e1fc41d
create/src/Gui/DocumentModel.cpp
Markus Reitböck a72a0d6405 Gui: use CMake to generate precompiled headers on all platforms 
"Professional CMake" book suggest the following:

"Targets should build successfully with or without compiler support for precompiled headers. It
should be considered an optimization, not a requirement. In particular, do not explicitly include a
precompile header (e.g. stdafx.h) in the source code, let CMake force-include an automatically
generated precompile header on the compiler command line instead. This is more portable across
the major compilers and is likely to be easier to maintain. It will also avoid warnings being
generated from certain code checking tools like iwyu (include what you use)."

Therefore, removed the "#include <PreCompiled.h>" from sources, also
there is no need for the "#ifdef _PreComp_" anymore
2025-09-14 09:47:03 +02:00

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/***************************************************************************
* Copyright (c) 2010 Werner Mayer <wmayer[at]users.sourceforge.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 <QApplication>
# include <QFont>
#include <App/Document.h>
#include <App/DocumentObject.h>
#include <App/PropertyLinks.h>
#include "DocumentModel.h"
#include "Application.h"
#include "BitmapFactory.h"
#include "Document.h"
#include "ViewProviderDocumentObject.h"
using namespace Gui;
namespace sp = std::placeholders;
namespace Gui {
// forward declaration
class ViewProviderIndex;
// Base class
class DocumentModelIndex : public Base::BaseClass
{
TYPESYSTEM_HEADER_WITH_OVERRIDE();
public:
~DocumentModelIndex() override
{ qDeleteAll(childItems); }
void setParent(DocumentModelIndex* parent)
{ parentItem = parent; }
DocumentModelIndex *parent() const
{ return parentItem; }
void appendChild(DocumentModelIndex *child)
{ childItems.append(child); child->setParent(this); }
void removeChild(int row)
{ childItems.removeAt(row); }
QList<DocumentModelIndex*> removeAll()
{
QList<DocumentModelIndex*> list = childItems;
childItems.clear();
return list;
}
DocumentModelIndex *child(int row)
{ return childItems.value(row); }
int row() const
{
if (parentItem)
return parentItem->childItems.indexOf
(const_cast<DocumentModelIndex*>(this));
return 0;
}
int childCount() const
{ return childItems.count(); }
virtual QVariant data(int role) const
{
Q_UNUSED(role);
return {};
}
virtual bool setData (const QVariant & value, int role)
{
Q_UNUSED(value);
if (role == Qt::EditRole) {
return true;
}
return true;
}
virtual Qt::ItemFlags flags() const
{
return Qt::ItemIsSelectable|Qt::ItemIsEnabled;
}
protected:
void reset()
{ qDeleteAll(childItems); childItems.clear(); }
protected:
DocumentModelIndex() = default;
DocumentModelIndex *parentItem{nullptr};
QList<DocumentModelIndex*> childItems;
};
// ------------------------------------------------------------------------
// Root node
class ApplicationIndex : public DocumentModelIndex
{
TYPESYSTEM_HEADER_WITH_OVERRIDE();
public:
ApplicationIndex() = default;
int findChild(const Gui::Document& d) const;
Qt::ItemFlags flags() const override;
QVariant data(int role) const override;
};
// ------------------------------------------------------------------------
// Document nodes
class DocumentIndex : public DocumentModelIndex
{
friend class ViewProviderIndex;
TYPESYSTEM_HEADER_WITH_OVERRIDE();
static QIcon* documentIcon;
using IndexSet = boost::unordered_set<ViewProviderIndex*>;
std::map<const ViewProviderDocumentObject*, IndexSet> vp_nodes;
void addToDocument(ViewProviderIndex*);
void removeFromDocument(ViewProviderIndex*);
public:
const Gui::Document& d;
explicit DocumentIndex(const Gui::Document& d) : d(d)
{
if (!documentIcon)
documentIcon = new QIcon(Gui::BitmapFactory().pixmap("Document"));
}
~DocumentIndex() override
{
qDeleteAll(childItems); childItems.clear();
}
ViewProviderIndex* cloneViewProvider(const ViewProviderDocumentObject&) const;
int rowOfViewProvider(const ViewProviderDocumentObject&) const;
void findViewProviders(const ViewProviderDocumentObject&, QList<ViewProviderIndex*>&) const;
QVariant data(int role) const override;
};
// ------------------------------------------------------------------------
// Object nodes
class ViewProviderIndex : public DocumentModelIndex
{
TYPESYSTEM_HEADER_WITH_OVERRIDE();
public:
const Gui::ViewProviderDocumentObject& v;
ViewProviderIndex(const Gui::ViewProviderDocumentObject& v, DocumentIndex* d);
~ViewProviderIndex() override;
ViewProviderIndex* clone() const;
void findViewProviders(const ViewProviderDocumentObject&, QList<ViewProviderIndex*>&) const;
QVariant data(int role) const override;
private:
DocumentIndex* d;
};
// ------------------------------------------------------------------------
int ApplicationIndex::findChild(const Gui::Document& d) const
{
int child=0;
QList<DocumentModelIndex*>::const_iterator it;
for (it = childItems.begin(); it != childItems.end(); ++it, ++child) {
auto doc = static_cast<DocumentIndex*>(*it);
if (&doc->d == &d)
return child;
}
return -1;
}
Qt::ItemFlags ApplicationIndex::flags() const
{
return Qt::ItemIsEnabled;
}
QVariant ApplicationIndex::data(int role) const
{
if (role == Qt::DecorationRole) {
return qApp->windowIcon();
}
else if (role == Qt::DisplayRole) {
return DocumentModel::tr("Application");
}
return {};
}
// ------------------------------------------------------------------------
QIcon* DocumentIndex::documentIcon = nullptr;
void DocumentIndex::addToDocument(ViewProviderIndex* vp)
{
vp_nodes[&vp->v].insert(vp);
}
void DocumentIndex::removeFromDocument(ViewProviderIndex* vp)
{
vp_nodes[&vp->v].erase(vp);
}
ViewProviderIndex*
DocumentIndex::cloneViewProvider(const ViewProviderDocumentObject& vp) const
{
std::map<const ViewProviderDocumentObject*, boost::unordered_set<ViewProviderIndex*> >::const_iterator it;
it = vp_nodes.find(&vp);
if (it != vp_nodes.end()) {
boost::unordered_set<ViewProviderIndex*>::const_iterator v;
if (!it->second.empty()) {
v = it->second.begin();
if (*v)
return (*v)->clone();
}
}
return new ViewProviderIndex(vp, const_cast<DocumentIndex*>(this));
}
void DocumentIndex::findViewProviders(const ViewProviderDocumentObject& vp,
QList<ViewProviderIndex*>& index) const
{
QList<DocumentModelIndex*>::const_iterator it;
for (it = childItems.begin(); it != childItems.end(); ++it) {
auto v = static_cast<ViewProviderIndex*>(*it);
v->findViewProviders(vp, index);
}
}
int DocumentIndex::rowOfViewProvider(const ViewProviderDocumentObject& vp) const
{
QList<DocumentModelIndex*>::const_iterator it;
int index=0;
for (it = childItems.begin(); it != childItems.end(); ++it, ++index) {
auto v = static_cast<ViewProviderIndex*>(*it);
if (&v->v == &vp)
return index;
}
return -1;
}
QVariant DocumentIndex::data(int role) const
{
if (role == Qt::DecorationRole) {
return *documentIcon;
}
else if (role == Qt::DisplayRole) {
App::Document* doc = d.getDocument();
return QString::fromUtf8(doc->Label.getValue());
}
else if (role == Qt::FontRole) {
Document* doc = Application::Instance->activeDocument();
QFont font;
font.setBold(doc==&d);
return static_cast<QVariant>(font);
}
return {};
}
// ------------------------------------------------------------------------
ViewProviderIndex::ViewProviderIndex(const Gui::ViewProviderDocumentObject& v, DocumentIndex* d)
: v(v),d(d)
{
if (d) d->addToDocument(this);
}
ViewProviderIndex::~ViewProviderIndex()
{
if (d) d->removeFromDocument(this);
}
ViewProviderIndex* ViewProviderIndex::clone() const
{
auto copy = new ViewProviderIndex(this->v, this->d);
for (const auto & childItem : childItems) {
ViewProviderIndex* c = static_cast<ViewProviderIndex*>(childItem)->clone();
copy->appendChild(c);
}
return copy;
}
void ViewProviderIndex::findViewProviders(const ViewProviderDocumentObject& vp,
QList<ViewProviderIndex*>& index) const
{
if (&this->v == &vp)
index.push_back(const_cast<ViewProviderIndex*>(this));
QList<DocumentModelIndex*>::const_iterator it;
for (it = childItems.begin(); it != childItems.end(); ++it) {
auto v = static_cast<ViewProviderIndex*>(*it);
v->findViewProviders(vp, index);
}
}
QVariant ViewProviderIndex::data(int role) const
{
if (role == Qt::DecorationRole) {
return v.getIcon();
}
else if (role == Qt::DisplayRole) {
App::DocumentObject* obj = v.getObject();
return QString::fromUtf8(obj->Label.getValue());
}
else if (role == Qt::FontRole) {
App::DocumentObject* obj = v.getObject();
App::DocumentObject* act = obj->getDocument()->getActiveObject();
QFont font;
font.setBold(obj==act);
return static_cast<QVariant>(font);
}
return {};
}
// ------------------------------------------------------------------------
TYPESYSTEM_SOURCE_ABSTRACT(Gui::DocumentModelIndex, Base::BaseClass)
TYPESYSTEM_SOURCE_ABSTRACT(Gui::ApplicationIndex,Gui::DocumentModelIndex)
TYPESYSTEM_SOURCE_ABSTRACT(Gui::DocumentIndex, Gui::DocumentModelIndex)
TYPESYSTEM_SOURCE_ABSTRACT(Gui::ViewProviderIndex, Gui::DocumentModelIndex)
struct DocumentModelP
{
DocumentModelP()
{ rootItem = new ApplicationIndex(); }
~DocumentModelP()
{ delete rootItem; }
ApplicationIndex *rootItem;
};
}
// -----------------------------------------------------------------
DocumentModel::DocumentModel(QObject* parent)
: QAbstractItemModel(parent), d(new DocumentModelP)
{
static bool inittype = false;
if (!inittype) {
inittype = true;
DocumentModelIndex ::init();
ApplicationIndex ::init();
DocumentIndex ::init();
ViewProviderIndex ::init();
}
//NOLINTBEGIN
// Setup connections
Application::Instance->signalNewDocument.connect(std::bind(&DocumentModel::slotNewDocument, this, sp::_1));
Application::Instance->signalDeleteDocument.connect(std::bind(&DocumentModel::slotDeleteDocument, this, sp::_1));
Application::Instance->signalRenameDocument.connect(std::bind(&DocumentModel::slotRenameDocument, this, sp::_1));
Application::Instance->signalActiveDocument.connect(std::bind(&DocumentModel::slotActiveDocument, this, sp::_1));
Application::Instance->signalRelabelDocument.connect(std::bind(&DocumentModel::slotRelabelDocument, this, sp::_1));
//NOLINTEND
}
DocumentModel::~DocumentModel()
{
delete d; d = nullptr;
}
void DocumentModel::slotNewDocument(const Gui::Document& Doc)
{
//NOLINTBEGIN
Doc.signalNewObject.connect(std::bind(&DocumentModel::slotNewObject, this, sp::_1));
Doc.signalDeletedObject.connect(std::bind(&DocumentModel::slotDeleteObject, this, sp::_1));
Doc.signalChangedObject.connect(std::bind(&DocumentModel::slotChangeObject, this, sp::_1, sp::_2));
Doc.signalRelabelObject.connect(std::bind(&DocumentModel::slotRenameObject, this, sp::_1));
Doc.signalActivatedObject.connect(std::bind(&DocumentModel::slotActiveObject, this, sp::_1));
Doc.signalInEdit.connect(std::bind(&DocumentModel::slotInEdit, this, sp::_1));
Doc.signalResetEdit.connect(std::bind(&DocumentModel::slotResetEdit, this, sp::_1));
//NOLINTEND
QModelIndex parent = createIndex(0,0,d->rootItem);
int count_docs = d->rootItem->childCount();
beginInsertRows(parent, count_docs, count_docs);
d->rootItem->appendChild(new DocumentIndex(Doc));
endInsertRows();
}
void DocumentModel::slotDeleteDocument(const Gui::Document& Doc)
{
int row = d->rootItem->findChild(Doc);
if (row > -1) {
QModelIndex parent = createIndex(0,0,d->rootItem);
beginRemoveRows(parent, row, row);
DocumentModelIndex* item = d->rootItem->child(row);
d->rootItem->removeChild(row);
delete item;
endRemoveRows();
}
}
void DocumentModel::slotRenameDocument(const Gui::Document& Doc)
{
Q_UNUSED(Doc);
// do nothing here
}
void DocumentModel::slotRelabelDocument(const Gui::Document& Doc)
{
int row = d->rootItem->findChild(Doc);
if (row > -1) {
QModelIndex parent = createIndex(0,0,d->rootItem);
QModelIndex item = index (row, 0, parent);
Q_EMIT dataChanged(item, item);
}
}
void DocumentModel::slotActiveDocument(const Gui::Document& /*Doc*/)
{
// don't know which was the previous active document, so check simply all
QModelIndex parent = createIndex(0,0,d->rootItem);
QModelIndex top = index (0, 0, parent);
QModelIndex bottom = index (d->rootItem->childCount()-1, 0, parent);
Q_EMIT dataChanged(top, bottom);
}
void DocumentModel::slotInEdit(const Gui::ViewProviderDocumentObject& v)
{
Q_UNUSED(v);
}
void DocumentModel::slotResetEdit(const Gui::ViewProviderDocumentObject& v)
{
Q_UNUSED(v);
}
void DocumentModel::slotNewObject(const Gui::ViewProviderDocumentObject& obj)
{
App::Document* doc = obj.getObject()->getDocument();
Gui::Document* gdc = Application::Instance->getDocument(doc);
int row = d->rootItem->findChild(*gdc);
if (row > -1) {
auto index = static_cast<DocumentIndex*>(d->rootItem->child(row));
QModelIndex parent = createIndex(index->row(),0,index);
int count_obj = index->childCount();
beginInsertRows(parent, count_obj, count_obj);
index->appendChild(new ViewProviderIndex(obj, index));
endInsertRows();
}
}
void DocumentModel::slotDeleteObject(const Gui::ViewProviderDocumentObject& obj)
{
App::Document* doc = obj.getObject()->getDocument();
Gui::Document* gdc = Application::Instance->getDocument(doc);
int row = d->rootItem->findChild(*gdc);
if (row > -1) {
auto doc_index = static_cast<DocumentIndex*>(d->rootItem->child(row));
QList<ViewProviderIndex*> views;
doc_index->findViewProviders(obj, views);
for (auto & view : views) {
DocumentModelIndex* parentitem = view->parent();
QModelIndex parent = createIndex(doc_index->row(), 0, parentitem);
int row = view->row();
beginRemoveRows(parent, row, row);
parentitem->removeChild(row);
delete view;
endRemoveRows();
}
}
}
void DocumentModel::slotChangeObject(const Gui::ViewProviderDocumentObject& obj, const App::Property& Prop)
{
App::DocumentObject* fea = obj.getObject();
if (&fea->Label == &Prop) {
App::Document* doc = fea->getDocument();
Gui::Document* gdc = Application::Instance->getDocument(doc);
int row = d->rootItem->findChild(*gdc);
if (row > -1) {
auto doc_index = static_cast<DocumentIndex*>(d->rootItem->child(row));
QList<ViewProviderIndex*> views;
doc_index->findViewProviders(obj, views);
for (const auto & view : std::as_const(views)) {
DocumentModelIndex* parentitem = view->parent();
QModelIndex parent = createIndex(0,0,parentitem);
int row = view->row();
QModelIndex item = index (row, 0, parent);
Q_EMIT dataChanged(item, item);
}
}
}
else if (isPropertyLink(Prop)) {
App::Document* doc = fea->getDocument();
Gui::Document* gdc = Application::Instance->getDocument(doc);
std::vector<ViewProviderDocumentObject*> views = claimChildren(*gdc, obj);
int row = d->rootItem->findChild(*gdc);
if (row > -1) {
QList<DocumentModelIndex*> del_items;
auto doc_index = static_cast<DocumentIndex*>(d->rootItem->child(row));
for (const auto & view : views) {
int row = doc_index->rowOfViewProvider(*view);
// is it a top-level child in the document
if (row >= 0) {
DocumentModelIndex* child = doc_index->child(row);
del_items.push_back(child);
QModelIndex parent = createIndex(doc_index->row(), 0, doc_index);
beginRemoveRows(parent, row, row);
doc_index->removeChild(row);
endRemoveRows();
}
}
// get all occurrences of the view provider in the tree structure
QList<ViewProviderIndex*> obj_index;
doc_index->findViewProviders(obj, obj_index);
for (const auto & it : std::as_const(obj_index)) {
QModelIndex parent = createIndex(it->row(),0,it);
int count_obj = it->childCount();
beginRemoveRows(parent, 0, count_obj);
// remove all children but do not yet delete them
QList<DocumentModelIndex*> items = it->removeAll();
endRemoveRows();
beginInsertRows(parent, 0, (int)views.size());
for (const auto & view : views) {
ViewProviderIndex* clone = doc_index->cloneViewProvider(*view);
it->appendChild(clone);
}
endInsertRows();
del_items.append(items);
}
qDeleteAll(del_items);
}
}
}
void DocumentModel::slotRenameObject(const Gui::ViewProviderDocumentObject& obj)
{
Q_UNUSED(obj);
// renaming of objects not supported at the moment
}
void DocumentModel::slotActiveObject(const Gui::ViewProviderDocumentObject& obj)
{
Q_UNUSED(obj);
// do nothing here because this is automatically done by calling
// ViewProviderIndex::data()
}
const Document* DocumentModel::getDocument(const QModelIndex& index) const
{
if (!index.isValid())
return nullptr;
Base::BaseClass* item = nullptr;
item = static_cast<Base::BaseClass*>(index.internalPointer());
if (item->is<DocumentIndex>()) {
const Gui::Document& d = static_cast<DocumentIndex*>(item)->d;
return (&d);
}
return nullptr;
}
bool DocumentModel::isPropertyLink(const App::Property& prop) const
{
return prop.isDerivedFrom<App::PropertyLink>()
|| prop.isDerivedFrom<App::PropertyLinkSub>()
|| prop.isDerivedFrom<App::PropertyLinkList>()
|| prop.isDerivedFrom<App::PropertyLinkSubList>();
}
std::vector<ViewProviderDocumentObject*>
DocumentModel::claimChildren(const Gui::Document& doc, const ViewProviderDocumentObject& obj) const
{
std::vector<ViewProviderDocumentObject*> views;
std::vector<App::DocumentObject*> childs = obj.claimChildren();
for (const auto & child : childs) {
ViewProvider* view = doc.getViewProvider(child);
if (view && view->isDerivedFrom<ViewProviderDocumentObject>())
views.push_back(static_cast<ViewProviderDocumentObject*>(view));
}
return views;
}
int DocumentModel::columnCount (const QModelIndex & /*parent*/) const
{
return 1;
}
QVariant DocumentModel::data (const QModelIndex & index, int role) const
{
if (!index.isValid())
return {};
return static_cast<DocumentModelIndex*>(index.internalPointer())->data(role);
}
bool DocumentModel::setData(const QModelIndex& index, const QVariant & value, int role)
{
if (!index.isValid())
return false;
return static_cast<DocumentModelIndex*>(index.internalPointer())->setData(value, role);
}
Qt::ItemFlags DocumentModel::flags(const QModelIndex &index) const
{
//if (index.internalPointer() == d->rootItem)
// return Qt::ItemIsEnabled;
//return QAbstractItemModel::flags(index);
if (!index.isValid())
return {};
return static_cast<DocumentModelIndex*>(index.internalPointer())->flags();
}
QModelIndex DocumentModel::index (int row, int column, const QModelIndex & parent) const
{
DocumentModelIndex* item = nullptr;
if (!parent.isValid())
item = d->rootItem;
else
item = static_cast<DocumentModelIndex*>(parent.internalPointer())->child(row);
if (!item)
return {};
return createIndex(row, column, item);
}
QModelIndex DocumentModel::parent (const QModelIndex & index) const
{
if (!index.isValid() || index.internalPointer() == d->rootItem)
return {};
DocumentModelIndex* item = nullptr;
item = static_cast<DocumentModelIndex*>(index.internalPointer());
DocumentModelIndex* parent = item->parent();
return createIndex(parent->row(), 0, parent);
}
int DocumentModel::rowCount (const QModelIndex & parent) const
{
if (!parent.isValid())
return 1; // the root item
DocumentModelIndex* item = nullptr;
item = static_cast<DocumentModelIndex*>(parent.internalPointer());
return item->childCount();
}
QVariant DocumentModel::headerData (int section, Qt::Orientation orientation, int role) const
{
Q_UNUSED(section);
if (orientation == Qt::Horizontal) {
if (role != Qt::DisplayRole)
return {};
return tr("Labels & Attributes");
}
return {};
}
bool DocumentModel::setHeaderData (int, Qt::Orientation, const QVariant &, int)
{
return false;
}
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