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Document.cpp
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Document.cpp
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/***************************************************************************
* Copyright (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
* *
* 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 *
* *
***************************************************************************/
/*! \namespace App \class App::Document
This is besides the Application class the most important class in FreeCAD
It contains all the data of the opened, saved or newly created FreeCAD Document.
The Document manage the Undo and Redo mechanism and the linking of documents.
Note: the documents are not free objects. They are completly handled by the
App::Application. Only the Application can Open or destroy a document.
\section Exception Exception handling
As the document is the main data structure of FreeCAD we have to take a close
look on how Exceptions affect the integrity of the App::Document.
\section UndoRedo Undo Redo an Transactions
Undo Redo handling is one of the major mechanism of an document in terms of
user friendliness and speed (no one will wait for Undo too long).
\section Dependency Graph and dependency handling
The FreeCAD document handles the dependencies of its DocumentObjects with
an adjacence list. This gives the opportunity to calculate the shortest
recompute path. Also enables more complicated dependencies beyond trees.
@see App::Application
@see App::DocumentObject
*/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <algorithm>
# include <sstream>
# include <climits>
#endif
#include <boost/graph/topological_sort.hpp>
#include <boost/graph/depth_first_search.hpp>
#include <boost/graph/dijkstra_shortest_paths.hpp>
#include <boost/graph/visitors.hpp>
#include <boost/graph/graphviz.hpp>
#include <boost/bind.hpp>
#include <boost/regex.hpp>
#include <boost/unordered_set.hpp>
#include <QCoreApplication>
#include <QCryptographicHash>
#include "Document.h"
#include "Application.h"
#include "DocumentObject.h"
#include "MergeDocuments.h"
#include <App/DocumentPy.h>
#include <Base/Console.h>
#include <Base/Exception.h>
#include <Base/FileInfo.h>
#include <Base/TimeInfo.h>
#include <Base/Interpreter.h>
#include <Base/Reader.h>
#include <Base/Writer.h>
#include <Base/Stream.h>
#include <Base/FileInfo.h>
#include <Base/Tools.h>
#include <Base/Uuid.h>
#ifdef _MSC_VER
#include <zipios++/zipios-config.h>
#endif
#include <zipios++/zipfile.h>
#include <zipios++/zipinputstream.h>
#include <zipios++/zipoutputstream.h>
#include <zipios++/meta-iostreams.h>
#include "Application.h"
#include "Transactions.h"
using Base::Console;
using Base::streq;
using Base::Writer;
using namespace App;
using namespace std;
using namespace boost;
using namespace zipios;
#if FC_DEBUG
# define FC_LOGFEATUREUPDATE
#endif
// typedef boost::property<boost::vertex_root_t, DocumentObject* > VertexProperty;
typedef boost::adjacency_list <
boost::vecS, // class OutEdgeListS : a Sequence or an AssociativeContainer
boost::vecS, // class VertexListS : a Sequence or a RandomAccessContainer
boost::directedS, // class DirectedS : This is a directed graph
boost::no_property, // class VertexProperty:
boost::no_property, // class EdgeProperty:
boost::no_property, // class GraphProperty:
boost::listS // class EdgeListS:
> DependencyList;
typedef boost::graph_traits<DependencyList> Traits;
typedef Traits::vertex_descriptor Vertex;
typedef Traits::edge_descriptor Edge;
namespace App {
// Pimpl class
struct DocumentP
{
// Array to preserve the creation order of created objects
std::vector<DocumentObject*> objectArray;
std::map<std::string,DocumentObject*> objectMap;
DocumentObject* activeObject;
Transaction *activeUndoTransaction;
int iTransactionMode;
std::map<Vertex,DocumentObject*> vertexMap;
bool rollback;
bool undoing; ///< document in the middle of undo or redo
bool closable;
bool keepTrailingDigits;
int iUndoMode;
unsigned int UndoMemSize;
unsigned int UndoMaxStackSize;
DependencyList DepList;
std::map<DocumentObject*,Vertex> VertexObjectList;
DocumentP() {
activeObject = 0;
activeUndoTransaction = 0;
iTransactionMode = 0;
rollback = false;
undoing = false;
closable = true;
keepTrailingDigits = true;
iUndoMode = 0;
UndoMemSize = 0;
UndoMaxStackSize = 20;
}
};
} // namespace App
PROPERTY_SOURCE(App::Document, App::PropertyContainer)
void Document::writeDependencyGraphViz(std::ostream &out)
{
// // caching vertex to DocObject
//std::map<Vertex,DocumentObject*> VertexMap;
//for(std::map<DocumentObject*,Vertex>::const_iterator It1= _DepConMap.begin();It1 != _DepConMap.end(); ++It1)
// VertexMap[It1->second] = It1->first;
out << "digraph G {" << endl;
out << "\tordering=out;" << endl;
out << "\tnode [shape = box];" << endl;
for (std::map<std::string,DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It) {
out << "\t" << It->first << ";" <<endl;
std::vector<DocumentObject*> OutList = It->second->getOutList();
for (std::vector<DocumentObject*>::const_iterator It2=OutList.begin();It2!=OutList.end();++It2)
if (*It2)
out << "\t" << It->first << "->" << (*It2)->getNameInDocument() << ";" <<endl;
}
/*
graph_traits<DependencyList>::edge_iterator ei, ei_end;
for (tie(ei,ei_end) = edges(_DepList); ei != ei_end; ++ei)
out << "\t"
<< VertexMap[source(*ei, _DepList)]->getNameInDocument()
<< " -> "
<< VertexMap[target(*ei, _DepList)]->getNameInDocument()
<< ";" << endl;
*/
out << "}" << endl;
}
void Document::exportGraphviz(std::ostream& out) const
{
/* Typedefs for a graph with graphviz attributes */
typedef std::map<std::string, std::string> GraphvizAttributes;
typedef subgraph< adjacency_list<vecS, vecS, directedS,
property<vertex_attribute_t, GraphvizAttributes>,
property<edge_index_t, int, property<edge_attribute_t, GraphvizAttributes> >,
property<graph_name_t, std::string,
property<graph_graph_attribute_t, GraphvizAttributes,
property<graph_vertex_attribute_t, GraphvizAttributes,
property<graph_edge_attribute_t, GraphvizAttributes>
> > > > > Graph;
/**
* @brief The GraphCreator class
*
* This class creates the dependency graph for a document.
*
*/
class GraphCreator {
public:
GraphCreator(struct DocumentP* _d) : d(_d), vertex_no(0) {
build();
}
const Graph & getGraph() const { return DepList; }
private:
void build() {
// Set attribute(s) for main graph
get_property(DepList, graph_graph_attribute)["compound"] = "true";
addSubgraphs();
buildAdjacencyList();
addEdges();
}
/**
* @brief getId returns a canonical string for a DocumentObject.
* @param docObj Document object to get an ID from
* @return A string
*/
std::string getId(const DocumentObject * docObj) {
return std::string((docObj)->getDocument()->getName()) + "#" + docObj->getNameInDocument();
}
/**
* @brief getId returns a canonical string for an ObjectIdentifier;
* @param path
* @return A string
*/
std::string getId(const ObjectIdentifier & path) {
DocumentObject * docObj = path.getDocumentObject();
return std::string((docObj)->getDocument()->getName()) + "#" + docObj->getNameInDocument() + "." + path.getPropertyName() + path.getSubPathStr();
}
std::string getClusterName(const DocumentObject * docObj) const {
return std::string("cluster") + docObj->getNameInDocument();
}
/**
* @brief setGraphAttributes Set graph attributes on a subgraph for a DocumentObject node.
* @param obj DocumentObject
*/
void setGraphAttributes(const DocumentObject * obj) {
assert(GraphList[obj] != 0);
get_property(*GraphList[obj], graph_name) = getClusterName(obj);
get_property(*GraphList[obj], graph_graph_attribute)["bgcolor"] = "#e0e0e0";
get_property(*GraphList[obj], graph_graph_attribute)["style"] = "rounded,filled";
}
/**
* @brief setPropertyVertexAttributes Set vertex attributes for a Porperty node in a graph.
* @param g Graph
* @param vertex Property node
* @param name Name of node
*/
void setPropertyVertexAttributes(Graph & g, Vertex vertex, const std::string & name) {
get(vertex_attribute, g)[vertex]["label"] = name;
get(vertex_attribute, g)[vertex]["shape"] = "box";
get(vertex_attribute, g)[vertex]["style"] = "dashed";
get(vertex_attribute, g)[vertex]["fontsize"] = "8pt";
}
/**
* @brief addSubgraphIfNeeded Add a subgraph to the main graph if it is needed, i.e there are defined at least one expression in hte
* document object, or other objects are referencing properties in it.
* @param obj DocumentObject to assess.
*/
void addSubgraphIfNeeded(DocumentObject * obj) {
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo> expressions = obj->ExpressionEngine.getExpressions();
if (expressions.size() > 0) {
// If documentObject has an expression, create a subgraph for it
if (!GraphList[obj]) {
GraphList[obj] = &DepList.create_subgraph();
setGraphAttributes(obj);
}
// Create subgraphs for all documentobjects that it depends on; it will depend on some property there
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo>::const_iterator i = expressions.begin();
while (i != expressions.end()) {
std::set<ObjectIdentifier> deps;
i->second.expression->getDeps(deps);
std::set<ObjectIdentifier>::const_iterator j = deps.begin();
while (j != deps.end()) {
DocumentObject * o = j->getDocumentObject();
// Doesn't exist already?
if (!GraphList[o]) {
GraphList[o] = &DepList.create_subgraph();
setGraphAttributes(o);
}
++j;
}
++i;
}
}
}
/**
* @brief add Add @docObj to the graph, including all expressions (and dependencies) it includes.
* @param docObj The document object to add.
* @param name Name of node.
*/
void add(DocumentObject * docObj, const std::string & name, const std::string & label) {
Graph * sgraph = GraphList[docObj] ? GraphList[docObj] : &DepList;
// Keep a list of all added document objects.
objects.insert(docObj);
// Add vertex to graph. Track global and local index
LocalVertexList[getId(docObj)] = add_vertex(*sgraph);
GlobalVertexList[getId(docObj)] = vertex_no++;
// Set node label
if (name == label)
get(vertex_attribute, *sgraph)[LocalVertexList[getId(docObj)]]["label"] = name;
else
get(vertex_attribute, *sgraph)[LocalVertexList[getId(docObj)]]["label"] = name + "\n(" + label + ")";
// If node is in main graph, style it with rounded corners. If not, remove the border as the subgraph will contain it.
if (sgraph == &DepList) {
get(vertex_attribute, *sgraph)[LocalVertexList[getId(docObj)]]["style"] = "filled";
get(vertex_attribute, *sgraph)[LocalVertexList[getId(docObj)]]["shape"] = "Mrecord";
}
else
get(vertex_attribute, *sgraph)[LocalVertexList[getId(docObj)]]["color"] = "none";
// Add expressions and its dependencies
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo> expressions = docObj->ExpressionEngine.getExpressions();
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo>::const_iterator i = expressions.begin();
// Add nodes for each property that has an expression attached to it
while (i != expressions.end()) {
std::map<std::string, Vertex>::const_iterator k = GlobalVertexList.find(getId(i->first));
if (k == GlobalVertexList.end()) {
int vid = LocalVertexList[getId(i->first)] = add_vertex(*sgraph);
GlobalVertexList[getId(i->first)] = vertex_no++;
setPropertyVertexAttributes(*sgraph, vid, i->first.toString());
}
++i;
}
// Add all dependencies
i = expressions.begin();
while (i != expressions.end()) {
// Get dependencies
std::set<ObjectIdentifier> deps;
i->second.expression->getDeps(deps);
// Create subgraphs for all documentobjects that it depends on; it will depend on some property there
std::set<ObjectIdentifier>::const_iterator j = deps.begin();
while (j != deps.end()) {
DocumentObject * depObjDoc = j->getDocumentObject();
std::map<std::string, Vertex>::const_iterator k = GlobalVertexList.find(getId(*j));
if (k == GlobalVertexList.end()) {
Graph * depSgraph = GraphList[depObjDoc] ? GraphList[depObjDoc] : &DepList;
LocalVertexList[getId(*j)] = add_vertex(*depSgraph);
GlobalVertexList[getId(*j)] = vertex_no++;
setPropertyVertexAttributes(*depSgraph, LocalVertexList[getId(*j)], j->getPropertyName() + j->getSubPathStr());
}
++j;
}
++i;
}
}
void addSubgraphs() {
// Internal document objects
for (std::map<std::string,DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It)
addSubgraphIfNeeded(It->second);
// Add external document objects
for (std::map<std::string,DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It) {
std::vector<DocumentObject*> OutList = It->second->getOutList();
for (std::vector<DocumentObject*>::const_iterator It2=OutList.begin();It2!=OutList.end();++It2) {
if (*It2) {
std::map<std::string,Vertex>::const_iterator item = GlobalVertexList.find(getId(*It2));
if (item == GlobalVertexList.end())
addSubgraphIfNeeded(*It2);
}
}
}
}
// Filling up the adjacency List
void buildAdjacencyList() {
// Add internal document objects
for (std::map<std::string,DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It)
add(It->second, It->second->getNameInDocument(), It->second->Label.getValue());
// Add external document objects
for (std::map<std::string,DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It) {
std::vector<DocumentObject*> OutList = It->second->getOutList();
for (std::vector<DocumentObject*>::const_iterator It2=OutList.begin();It2!=OutList.end();++It2) {
if (*It2) {
std::map<std::string,Vertex>::const_iterator item = GlobalVertexList.find(getId(*It2));
if (item == GlobalVertexList.end())
add(*It2,
std::string((*It2)->getDocument()->getName()) + "#" + (*It2)->getNameInDocument(),
std::string((*It2)->getDocument()->getName()) + "#" + (*It2)->Label.getValue());
}
}
}
}
void addEdges() {
// Get edge properties for main graph
const boost::property_map<Graph, boost::edge_attribute_t>::type& edgeAttrMap = boost::get(boost::edge_attribute, DepList);
// Track edges between document objects connected by expression dependencies
std::set<std::pair<const DocumentObject*, const DocumentObject*> > existingEdges;
// Add edges between properties
std::set<const DocumentObject*>::const_iterator j = objects.begin();
while (j != objects.end()) {
const DocumentObject * docObj = *j;
// Add expressions and its dependencies
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo> expressions = docObj->ExpressionEngine.getExpressions();
boost::unordered_map<const App::ObjectIdentifier, const PropertyExpressionEngine::ExpressionInfo>::const_iterator i = expressions.begin();
while (i != expressions.end()) {
std::set<ObjectIdentifier> deps;
i->second.expression->getDeps(deps);
// Create subgraphs for all documentobjects that it depends on; it will depend on some property there
std::set<ObjectIdentifier>::const_iterator k = deps.begin();
while (k != deps.end()) {
DocumentObject * depObjDoc = k->getDocumentObject();
Edge edge;
bool inserted;
tie(edge, inserted) = add_edge(GlobalVertexList[getId(i->first)], GlobalVertexList[getId(*k)], DepList);
// Add this edge to the set of all expression generated edges
existingEdges.insert(std::make_pair(docObj, depObjDoc));
// Edges between properties should be a bit smaller, and dashed
edgeAttrMap[edge]["arrowsize"] = "0.5";
edgeAttrMap[edge]["style"] = "dashed";
++k;
}
++i;
}
++j;
}
// Add edges between document objects
for (std::map<std::string, DocumentObject*>::const_iterator It = d->objectMap.begin(); It != d->objectMap.end();++It) {
std::vector<DocumentObject*> OutList = It->second->getOutList();
for (std::vector<DocumentObject*>::const_iterator It2=OutList.begin();It2!=OutList.end();++It2) {
if (*It2) {
const DocumentObject * docObj = It->second;
// Skip duplicate edges
if (edge(GlobalVertexList[getId(docObj)], GlobalVertexList[getId(*It2)], DepList).second)
continue;
// Skip edge if an expression edge already exists
if (existingEdges.find(std::make_pair(docObj, *It2)) != existingEdges.end())
continue;
// Add edge
Edge edge;
bool inserted;
tie(edge, inserted) = add_edge(GlobalVertexList[getId(docObj)], GlobalVertexList[getId(*It2)], DepList);
// Set properties to make arrows go between subgraphs if needed
if (GraphList[docObj])
edgeAttrMap[edge]["ltail"] = getClusterName(docObj);
if (GraphList[*It2])
edgeAttrMap[edge]["lhead"] = getClusterName(*It2);
}
}
}
}
const struct DocumentP* d;
Graph DepList;
int vertex_no;
std::map<std::string, Vertex> LocalVertexList;
std::map<std::string, Vertex> GlobalVertexList;
std::set<const DocumentObject*> objects;
std::map<const DocumentObject*, Graph*> GraphList;
};
GraphCreator g(d);
boost::write_graphviz(out, g.getGraph());
}
//bool _has_cycle_dfs(const DependencyList & g, vertex_t u, default_color_type * color)
//{
// color[u] = gray_color;
// graph_traits < DependencyList >::adjacency_iterator vi, vi_end;
// for (tie(vi, vi_end) = adjacent_vertices(u, g); vi != vi_end; ++vi)
// if (color[*vi] == white_color)
// if (has_cycle_dfs(g, *vi, color))
// return true; // cycle detected, return immediately
// else if (color[*vi] == gray_color) // *vi is an ancestor!
// return true;
// color[u] = black_color;
// return false;
//}
bool Document::checkOnCycle(void)
{/*
std::vector < default_color_type > color(num_vertices(_DepList), white_color);
graph_traits < DependencyList >::vertex_iterator vi, vi_end;
for (tie(vi, vi_end) = vertices(_DepList); vi != vi_end; ++vi)
if (color[*vi] == white_color)
if (_has_cycle_dfs(_DepList, *vi, &color[0]))
return true; */
return false;
}
bool Document::undo(void)
{
if (d->iUndoMode) {
if (d->activeUndoTransaction)
commitTransaction();
else if (mUndoTransactions.empty())
return false;
// redo
d->activeUndoTransaction = new Transaction();
d->activeUndoTransaction->Name = mUndoTransactions.back()->Name;
d->undoing = true;
// applying the undo
mUndoTransactions.back()->apply(*this,false);
d->undoing = false;
// save the redo
mRedoTransactions.push_back(d->activeUndoTransaction);
d->activeUndoTransaction = 0;
delete mUndoTransactions.back();
mUndoTransactions.pop_back();
signalUndo(*this);
return true;
}
return false;
}
bool Document::redo(void)
{
if (d->iUndoMode) {
if (d->activeUndoTransaction)
commitTransaction();
assert(mRedoTransactions.size()!=0);
// undo
d->activeUndoTransaction = new Transaction();
d->activeUndoTransaction->Name = mRedoTransactions.back()->Name;
// do the redo
d->undoing = true;
mRedoTransactions.back()->apply(*this,true);
d->undoing = false;
mUndoTransactions.push_back(d->activeUndoTransaction);
d->activeUndoTransaction = 0;
delete mRedoTransactions.back();
mRedoTransactions.pop_back();
signalRedo(*this);
return true;
}
return false;
}
std::vector<std::string> Document::getAvailableUndoNames() const
{
std::vector<std::string> vList;
if (d->activeUndoTransaction)
vList.push_back(d->activeUndoTransaction->Name);
for (std::list<Transaction*>::const_reverse_iterator It=mUndoTransactions.rbegin();It!=mUndoTransactions.rend();++It)
vList.push_back((**It).Name);
return vList;
}
std::vector<std::string> Document::getAvailableRedoNames() const
{
std::vector<std::string> vList;
for (std::list<Transaction*>::const_reverse_iterator It=mRedoTransactions.rbegin();It!=mRedoTransactions.rend();++It)
vList.push_back((**It).Name);
return vList;
}
void Document::openTransaction(const char* name)
{
if (d->iUndoMode) {
if (d->activeUndoTransaction)
commitTransaction();
_clearRedos();
d->activeUndoTransaction = new Transaction();
if (name)
d->activeUndoTransaction->Name = name;
else
d->activeUndoTransaction->Name = "<empty>";
}
}
void Document::_checkTransaction(DocumentObject* pcObject)
{
// if the undo is active but no transaction open, open one!
if (d->iUndoMode) {
if (!d->activeUndoTransaction) {
// When the object is going to be deleted we have to check if it has already been added to
// the undo transactions
std::list<Transaction*>::iterator it;
for (it = mUndoTransactions.begin(); it != mUndoTransactions.end(); ++it) {
if ((*it)->hasObject(pcObject)) {
openTransaction();
break;
}
}
}
}
}
void Document::_clearRedos()
{
while (!mRedoTransactions.empty()) {
delete mRedoTransactions.back();
mRedoTransactions.pop_back();
}
}
void Document::commitTransaction()
{
if (d->activeUndoTransaction) {
mUndoTransactions.push_back(d->activeUndoTransaction);
d->activeUndoTransaction = 0;
// check the stack for the limits
if(mUndoTransactions.size() > d->UndoMaxStackSize){
delete mUndoTransactions.front();
mUndoTransactions.pop_front();
}
}
}
void Document::abortTransaction()
{
if (d->activeUndoTransaction) {
d->rollback = true;
// applying the so far made changes
d->activeUndoTransaction->apply(*this,false);
d->rollback = false;
// destroy the undo
delete d->activeUndoTransaction;
d->activeUndoTransaction = 0;
}
}
bool Document::hasPendingTransaction() const
{
if (d->activeUndoTransaction)
return true;
else
return false;
}
void Document::clearUndos()
{
if (d->activeUndoTransaction)
commitTransaction();
// When cleaning up the undo stack we must delete the transactions from front
// to back because a document object can appear in several transactions but
// once removed from the document the object can never ever appear in any later
// transaction. Since the document object may be also deleted when the transaction
// is deleted we must make sure not access an object once it's destroyed. Thus, we
// go from front to back and not the other way round.
while (!mUndoTransactions.empty()) {
delete mUndoTransactions.front();
mUndoTransactions.pop_front();
}
//while (!mUndoTransactions.empty()) {
// delete mUndoTransactions.back();
// mUndoTransactions.pop_back();
//}
_clearRedos();
}
int Document::getAvailableUndos() const
{
if (d->activeUndoTransaction)
return static_cast<int>(mUndoTransactions.size() + 1);
else
return static_cast<int>(mUndoTransactions.size());
}
int Document::getAvailableRedos() const
{
return static_cast<int>(mRedoTransactions.size());
}
void Document::setUndoMode(int iMode)
{
if (d->iUndoMode && !iMode)
clearUndos();
d->iUndoMode = iMode;
}
int Document::getUndoMode(void) const
{
return d->iUndoMode;
}
unsigned int Document::getUndoMemSize (void) const
{
return d->UndoMemSize;
}
void Document::setUndoLimit(unsigned int UndoMemSize)
{
d->UndoMemSize = UndoMemSize;
}
void Document::setMaxUndoStackSize(unsigned int UndoMaxStackSize)
{
d->UndoMaxStackSize = UndoMaxStackSize;
}
unsigned int Document::getMaxUndoStackSize(void)const
{
return d->UndoMaxStackSize;
}
void Document::onChanged(const Property* prop)
{
// the Name property is a label for display purposes
if (prop == &Label) {
App::GetApplication().signalRelabelDocument(*this);
}
else if (prop == &Uid) {
std::string new_dir = getTransientDirectoryName(this->Uid.getValueStr(),this->FileName.getStrValue());
std::string old_dir = this->TransientDir.getStrValue();
Base::FileInfo TransDirNew(new_dir);
Base::FileInfo TransDirOld(old_dir);
// this directory should not exist
if (!TransDirNew.exists()) {
if (TransDirOld.exists()) {
if (!TransDirOld.renameFile(new_dir.c_str()))
Base::Console().Warning("Failed to rename '%s' to '%s'\n", old_dir.c_str(), new_dir.c_str());
else
this->TransientDir.setValue(new_dir);
}
else {
if (!TransDirNew.createDirectory())
Base::Console().Warning("Failed to create '%s'\n", new_dir.c_str());
else
this->TransientDir.setValue(new_dir);
}
}
// when reloading an existing document the transient directory doesn't change
// so we must avoid to generate a new uuid
else if (TransDirNew.filePath() != TransDirOld.filePath()) {
// make sure that the uuid is unique
std::string uuid = this->Uid.getValueStr();
Base::Uuid id;
Base::Console().Warning("Document with the UUID '%s' already exists, change to '%s'\n",
uuid.c_str(), id.getValue().c_str());
// recursive call of onChanged()
this->Uid.setValue(id);
}
}
}
void Document::onBeforeChangeProperty(const TransactionalObject *Who, const Property *What)
{
if (d->activeUndoTransaction && !d->rollback)
d->activeUndoTransaction->addObjectChange(Who,What);
}
void Document::onChangedProperty(const DocumentObject *Who, const Property *What)
{
signalChangedObject(*Who, *What);
}
void Document::setTransactionMode(int iMode)
{
d->iTransactionMode = iMode;
}
//--------------------------------------------------------------------------
// constructor
//--------------------------------------------------------------------------
Document::Document(void)
{
// Remark: In a constructor we should never increment a Python object as we cannot be sure
// if the Python interpreter gets a reference of it. E.g. if we increment but Python don't
// get a reference then the object wouldn't get deleted in the destructor.
// So, we must increment only if the interpreter gets a reference.
// Remark: We force the document Python object to own the DocumentPy instance, thus we don't
// have to care about ref counting any more.
DocumentPythonObject = Py::Object(new DocumentPy(this), true);
d = new DocumentP;
#ifdef FC_LOGUPDATECHAIN
Console().Log("+App::Document: %p\n",this);
#endif
std::string CreationDateString = Base::TimeInfo::currentDateTimeString();
std::string Author = App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetASCII("prefAuthor","");
std::string AuthorComp = App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetASCII("prefCompany","");
ADD_PROPERTY_TYPE(Label,("Unnamed"),0,Prop_None,"The name of the document");
ADD_PROPERTY_TYPE(FileName,(""),0,PropertyType(Prop_Transient|Prop_ReadOnly),"The path to the file where the document is saved to");
ADD_PROPERTY_TYPE(CreatedBy,(Author.c_str()),0,Prop_None,"The creator of the document");
ADD_PROPERTY_TYPE(CreationDate,(CreationDateString.c_str()),0,Prop_ReadOnly,"Date of creation");
ADD_PROPERTY_TYPE(LastModifiedBy,(""),0,Prop_None,0);
ADD_PROPERTY_TYPE(LastModifiedDate,("Unknown"),0,Prop_ReadOnly,"Date of last modification");
ADD_PROPERTY_TYPE(Company,(AuthorComp.c_str()),0,Prop_None,"Additional tag to save the the name of the company");
ADD_PROPERTY_TYPE(Comment,(""),0,Prop_None,"Additional tag to save a comment");
ADD_PROPERTY_TYPE(Meta,(),0,Prop_None,"Map with additional meta information");
ADD_PROPERTY_TYPE(Material,(),0,Prop_None,"Map with material properties");
// create the uuid for the document
Base::Uuid id;
ADD_PROPERTY_TYPE(Id,(""),0,Prop_None,"ID of the document");
ADD_PROPERTY_TYPE(Uid,(id),0,Prop_ReadOnly,"UUID of the document");
// license stuff
ADD_PROPERTY_TYPE(License,("CC-BY 3.0"),0,Prop_None,"License string of the Item");
ADD_PROPERTY_TYPE(LicenseURL,("http://creativecommons.org/licenses/by/3.0/"),0,Prop_None,"URL to the license text/contract");
// license stuff
int licenseId = App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetInt("prefLicenseType",0);
std::string license;
std::string licenseUrl;
switch (licenseId) {
case 0:
license = "All rights reserved";
licenseUrl = "http://en.wikipedia.org/wiki/All_rights_reserved";
break;
case 1:
license = "CreativeCommons Attribution";
licenseUrl = "http://creativecommons.org/licenses/by/4.0/";
break;
case 2:
license = "CreativeCommons Attribution-ShareAlike";
licenseUrl = "http://creativecommons.org/licenses/by-sa/4.0/";
break;
case 3:
license = "CreativeCommons Attribution-NoDerivatives";
licenseUrl = "http://creativecommons.org/licenses/by-nd/4.0/";
break;
case 4:
license = "CreativeCommons Attribution-NonCommercial";
licenseUrl = "http://creativecommons.org/licenses/by-nc/4.0/";
break;
case 5:
license = "CreativeCommons Attribution-NonCommercial-ShareAlike";
licenseUrl = "http://creativecommons.org/licenses/by-nc-sa/4.0/";
break;
case 6:
license = "CreativeCommons Attribution-NonCommercial-NoDerivatives";
licenseUrl = "http://creativecommons.org/licenses/by-nc-nd/4.0/";
break;
case 7:
license = "Public Domain";
licenseUrl = "http://en.wikipedia.org/wiki/Public_domain";
break;
case 8:
license = "FreeArt";
licenseUrl = "http://artlibre.org/licence/lal";
break;
default:
license = "Other";
break;
}
licenseUrl = App::GetApplication().GetParameterGroupByPath
("User parameter:BaseApp/Preferences/Document")->GetASCII("prefLicenseUrl", licenseUrl.c_str());
ADD_PROPERTY_TYPE(License,(license.c_str()),0,Prop_None,"License string of the Item");
ADD_PROPERTY_TYPE(LicenseURL,(licenseUrl.c_str()),0,Prop_None,"URL to the license text/contract");
// this creates and sets 'TransientDir' in onChanged()
ADD_PROPERTY_TYPE(TransientDir,(""),0,PropertyType(Prop_Transient|Prop_ReadOnly),
"Transient directory, where the files live while the document is open");
ADD_PROPERTY_TYPE(Tip,(0),0,PropertyType(Prop_Transient),
"Link of the tip object of the document");
ADD_PROPERTY_TYPE(TipName,(""),0,PropertyType(Prop_Hidden|Prop_ReadOnly),
"Link of the tip object of the document");
Uid.touch();
}
Document::~Document()
{
#ifdef FC_LOGUPDATECHAIN
Console().Log("-App::Document: %s %p\n",getName(), this);
#endif
clearUndos();
std::map<std::string,DocumentObject*>::iterator it;
#ifdef FC_LOGUPDATECHAIN
Console().Log("-Delete Features of %s \n",getName());
#endif
d->objectArray.clear();
for (it = d->objectMap.begin(); it != d->objectMap.end(); ++it) {
delete(it->second);
}
// Remark: The API of Py::Object has been changed to set whether the wrapper owns the passed
// Python object or not. In the constructor we forced the wrapper to own the object so we need
// not to dec'ref the Python object any more.
// But we must still invalidate the Python object because it doesn't need to be
// destructed right now because the interpreter can own several references to it.
Base::PyObjectBase* doc = (Base::PyObjectBase*)DocumentPythonObject.ptr();
// Call before decrementing the reference counter, otherwise a heap error can occur
doc->setInvalid();
// remove Transient directory
Base::FileInfo TransDir(TransientDir.getValue());
TransDir.deleteDirectoryRecursive();
delete d;
}
std::string Document::getTransientDirectoryName(const std::string& uuid, const std::string& filename) const
{
// Create a directory name of the form: {ExeName}_Doc_{UUID}_{HASH}_{PID}
std::stringstream s;
QCryptographicHash hash(QCryptographicHash::Sha1);
hash.addData(filename.c_str(), filename.size());
s << App::Application::getTempPath() << GetApplication().getExecutableName()
<< "_Doc_" << uuid
<< "_" << hash.result().toHex().left(6).constData()
<< "_" << QCoreApplication::applicationPid();
return s.str();
}
//--------------------------------------------------------------------------
// Exported functions
//--------------------------------------------------------------------------
void Document::Save (Base::Writer &writer) const
{
writer.Stream() << "<?xml version='1.0' encoding='utf-8'?>" << endl
<< "<!--" << endl
<< " FreeCAD Document, see http://www.freecadweb.org for more information..." << endl
<< "-->" << endl;