Files
create/src/App/ExpressionVisitors.h
2024-11-21 21:17:42 +01:00

147 lines
4.7 KiB
C++

/***************************************************************************
* Copyright (c) 2016 Eivind Kvedalen <eivind@kvedalen.name> *
* *
* 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 *
* *
***************************************************************************/
#ifndef RENAMEOBJECTIDENTIFIEREXPRESSIONVISITOR_H
#define RENAMEOBJECTIDENTIFIEREXPRESSIONVISITOR_H
#include "Expression.h"
namespace App
{
/**
* @brief The RenameObjectIdentifierExpressionVisitor class is a functor used to visit each node of
* an expression, and possibly rename VariableExpression nodes.
*/
template<class P>
class RenameObjectIdentifierExpressionVisitor: public ExpressionModifier<P>
{
public:
RenameObjectIdentifierExpressionVisitor(
P& _prop,
const std::map<ObjectIdentifier, ObjectIdentifier>& _paths,
const ObjectIdentifier& _owner)
: ExpressionModifier<P>(_prop)
, paths(_paths)
, owner(_owner)
{}
void visit(Expression& node) override
{
this->renameObjectIdentifier(node, paths, owner);
}
private:
const std::map<ObjectIdentifier, ObjectIdentifier>&
paths; /**< Map with current and new object identifiers */
const ObjectIdentifier owner; /**< Owner of expression */
};
template<class P>
class UpdateElementReferenceExpressionVisitor: public ExpressionModifier<P>
{
public:
explicit UpdateElementReferenceExpressionVisitor(P& _prop,
App::DocumentObject* feature = nullptr,
bool reverse = false)
: ExpressionModifier<P>(_prop)
, feature(feature)
, reverse(reverse)
{}
void visit(Expression& node) override
{
this->updateElementReference(node, feature, reverse);
}
private:
App::DocumentObject* feature;
bool reverse;
};
// Document relabel is not undoable, so we don't derive from
// ExpressionModifier, hence not calling aboutToSetValue/hasSetValue().
// By right, modification of document label should not change evaluation result
// of any expression.
class RelabelDocumentExpressionVisitor: public ExpressionVisitor
{
public:
explicit RelabelDocumentExpressionVisitor(const App::Document& doc)
: doc(doc)
{}
void visit(Expression& node) override
{
this->relabeledDocument(node, doc.getOldLabel(), doc.Label.getStrValue());
}
private:
const App::Document& doc;
};
template<class P>
class MoveCellsExpressionVisitor: public ExpressionModifier<P>
{
public:
MoveCellsExpressionVisitor(P& prop, const CellAddress& address, int rowCount, int colCount)
: ExpressionModifier<P>(prop)
, address(address)
, rowCount(rowCount)
, colCount(colCount)
{}
void visit(Expression& node) override
{
this->moveCells(node, address, rowCount, colCount);
}
private:
CellAddress address;
int rowCount;
int colCount;
};
template<class P>
class OffsetCellsExpressionVisitor: public ExpressionModifier<P>
{
public:
OffsetCellsExpressionVisitor(P& prop, int rowOffset, int colOffset)
: ExpressionModifier<P>(prop)
, rowOffset(rowOffset)
, colOffset(colOffset)
{}
void visit(Expression& node) override
{
this->offsetCells(node, rowOffset, colOffset);
}
private:
int rowOffset;
int colOffset;
};
} // namespace App
#endif // RENAMEOBJECTIDENTIFIEREXPRESSIONVISITOR_H