App::PropertyFileIncluded Class Reference

File include properties This property doesn't only save the file name like PropertyFile it also includes the file itself into the document. More...

#include <PropertyFile.h>

Public Member Functions

virtual PropertyCopy (void) const
 Returns a new copy of the property (mainly for Undo/Redo and transactions) More...
 
virtual const char * getEditorName (void) const
 Get the class name of the associated property editor item. More...
 
std::string getExchangeTempFile (void) const
 get a temp file name in the transient path of the document. More...
 
virtual unsigned int getMemSize (void) const
 This method is used to get the size of objects It is not meant to have the exact size, it is more or less an estimation which runs fast! Is it two bytes or a GB? This method is defined in Base::Persistence. More...
 
std::string getOriginalFileName (void) const
 
virtual PyObjectgetPyObject (void)
 This method returns the Python wrapper for a C++ object. More...
 
const char * getValue (void) const
 
bool isEmpty (void) const
 
virtual void Paste (const Property &from)
 Paste the value from the property (mainly for Undo/Redo and transactions) More...
 
 PropertyFileIncluded (void)
 
virtual void Restore (Base::XMLReader &reader)
 This method is used to restore properties from an XML document. More...
 
virtual void RestoreDocFile (Base::Reader &reader)
 This method is used to restore large amounts of data from a file In this method you simply stream in your SaveDocFile() saved data. More...
 
virtual void Save (Base::Writer &writer) const
 This method is used to save properties to an XML document. More...
 
virtual void SaveDocFile (Base::Writer &writer) const
 This method is used to save large amounts of data to a binary file. More...
 
virtual void setPyObject (PyObject *)
 
void setValue (const char *sFile, const char *sName=0)
 
virtual ~PropertyFileIncluded ()
 
- Public Member Functions inherited from App::Property
virtual void aboutToSetChildValue (Property &)
 Called before a child property changing value. More...
 
virtual void afterRestore ()
 Called at the beginning of Document::afterRestore() More...
 
virtual App::ObjectIdentifier canonicalPath (const App::ObjectIdentifier &p) const
 Convert p to a canonical representation of it. More...
 
PropertyContainergetContainer (void) const
 Get a pointer to the PropertyContainer derived class the property belongs to. More...
 
const char * getDocumentation (void) const
 Get the documentation of this property. More...
 
std::string getFullName () const
 
const char * getGroup (void) const
 Get the group of this property. More...
 
const char * getName (void) const
 get the name of this property in the belonging container More...
 
virtual void getPaths (std::vector< App::ObjectIdentifier > &paths) const
 Get valid paths for this property; used by auto completer. More...
 
virtual const boost::any getPathValue (const App::ObjectIdentifier &path) const
 Get value of property. More...
 
virtual bool getPyPathValue (const App::ObjectIdentifier &, Py::Object &) const
 Get Python value of property. More...
 
unsigned long getStatus () const
 return the status bits More...
 
short getType (void) const
 Get the type of the property in the container. More...
 
virtual void hasSetChildValue (Property &)
 Called when a child property has changed value. More...
 
bool isReadOnly () const
 
bool isSinglePrecision () const
 Gets precision of properties using floating point numbers. More...
 
bool isTouched (void) const
 Test if this property is touched. More...
 
virtual void onContainerRestored ()
 Called before calling DocumentObject::onDocumentRestored() More...
 
 Property ()
 
void purgeTouched (void)
 Reset this property touched. More...
 
void setContainer (PropertyContainer *Father)
 Is called by the framework to set the father (container) More...
 
virtual void setPathValue (const App::ObjectIdentifier &path, const boost::any &value)
 Set value of property. More...
 
void setReadOnly (bool readOnly)
 Sets property editable/grayed out in property editor. More...
 
void setSinglePrecision (bool single)
 Sets precision of properties using floating point numbers to single, the default is double. More...
 
void setStatus (Status pos, bool on)
 
void setStatusValue (unsigned long status)
 
bool testStatus (Status pos) const
 
void touch ()
 Property status handling. More...
 
virtual ~Property ()
 
- Public Member Functions inherited from Base::Persistence
void dumpToStream (std::ostream &stream, int compression)
 
virtual Base::Type getTypeId (void) const
 
void restoreFromStream (std::istream &stream)
 
- Public Member Functions inherited from Base::BaseClass
 BaseClass ()
 Construction. More...
 
bool isDerivedFrom (const Type type) const
 
virtual ~BaseClass ()
 Destruction. More...
 

Protected Member Functions

void aboutToSetValue (void)
 Gets called by all setValue() methods before the value has changed. More...
 
std::string getDocTransientPath (void) const
 
std::string getUniqueFileName (const std::string &, const std::string &) const
 
- Protected Member Functions inherited from App::Property
virtual void hasSetValue (void)
 Gets called by all setValue() methods after the value has changed. More...
 
virtual void verifyPath (const App::ObjectIdentifier &p) const
 Verify a path for the current property. More...
 

Additional Inherited Members

- Public Types inherited from App::Property
enum  Status {
  Touched = 0, Immutable = 1, ReadOnly = 2, Hidden = 3,
  Transient = 4, MaterialEdit = 5, NoMaterialListEdit = 6, Output = 7,
  LockDynamic = 8, NoModify = 9, PartialTrigger = 10, NoRecompute = 11,
  Single = 12, Ordered = 13, EvalOnRestore = 14, PropStaticBegin = 21,
  PropDynamic = 21, PropNoPersist = 22, PropNoRecompute = 23, PropReadOnly = 24,
  PropTransient = 25, PropHidden = 26, PropOutput = 27, PropStaticEnd = 28,
  User1 = 28, User2 = 29, User3 = 30, User4 = 31
}
 
- Static Public Member Functions inherited from App::Property
static void destroy (Property *p)
 For safe deleting of a dynamic property. More...
 
- Static Public Member Functions inherited from Base::Persistence
static void * create (void)
 
static std::string encodeAttribute (const std::string &)
 Encodes an attribute upon saving. More...
 
static Base::Type getClassTypeId (void)
 
static void init (void)
 
- Static Public Member Functions inherited from Base::BaseClass
static void * create (void)
 
static Type getClassTypeId (void)
 
static void init (void)
 
- Static Protected Member Functions inherited from Base::BaseClass
static void initSubclass (Base::Type &toInit, const char *ClassName, const char *ParentName, Type::instantiationMethod method=nullptr)
 
- Protected Attributes inherited from App::Property
std::bitset< 32 > StatusBits
 Status bits of the property The first 8 bits are used for the base system the rest can be used in descendent classes to mark special statuses on the objects. More...
 

Detailed Description

File include properties This property doesn't only save the file name like PropertyFile it also includes the file itself into the document.

The file doesn't get loaded into memory, it gets copied from the document archive into the document transient directory. There it is accessible for the algorithms. You get the transient path through getDocTransientPath() It's allowed to read the file, it's not allowed to write the file directly in the transient path! That would undermine the Undo/Redo framework. It's only allowed to use setValue() to change the file. If you give a file name outside the transient dir to setValue() it will copy the file. If you give a file name in the transient path it will just rename and use the same file. You can use getExchangeTempFile() to get a file name in the transient dir to write a new file version.

Constructor & Destructor Documentation

◆ PropertyFileIncluded()

PropertyFileIncluded::PropertyFileIncluded ( void  )

◆ ~PropertyFileIncluded()

PropertyFileIncluded::~PropertyFileIncluded ( )
virtual

Member Function Documentation

◆ aboutToSetValue()

void PropertyFileIncluded::aboutToSetValue ( void  )
protectedvirtual

Gets called by all setValue() methods before the value has changed.

Reimplemented from App::Property.

References App::Property::aboutToSetValue().

◆ Copy()

Property * PropertyFileIncluded::Copy ( void  ) const
virtual

Returns a new copy of the property (mainly for Undo/Redo and transactions)

Implements App::Property.

References Base::Console(), Base::FileInfo::filePath(), Base::ConsoleSingleton::Log(), Base::FileInfo::ReadWrite, and Base::FileInfo::setPermissions().

◆ getDocTransientPath()

std::string PropertyFileIncluded::getDocTransientPath ( void  ) const
protected

◆ getEditorName()

virtual const char* App::PropertyFileIncluded::getEditorName ( void  ) const
virtual

Get the class name of the associated property editor item.

Reimplemented from App::Property.

◆ getExchangeTempFile()

std::string PropertyFileIncluded::getExchangeTempFile ( void  ) const

get a temp file name in the transient path of the document.

Using this file for new Version of the file and set this file with setValue() is the fastest way to change the File.

References Base::FileInfo::getTempFileName().

Referenced by Drawing::FeaturePage::execute(), TechDraw::DrawTileWeld::replaceSymbolIncluded(), and TechDraw::DrawTileWeld::setupSymbolIncluded().

◆ getMemSize()

unsigned int PropertyFileIncluded::getMemSize ( void  ) const
virtual

This method is used to get the size of objects It is not meant to have the exact size, it is more or less an estimation which runs fast! Is it two bytes or a GB? This method is defined in Base::Persistence.

See also
Base::Persistence

Reimplemented from App::Property.

References App::Property::getMemSize().

◆ getOriginalFileName()

std::string PropertyFileIncluded::getOriginalFileName ( void  ) const

◆ getPyObject()

PyObject * PropertyFileIncluded::getPyObject ( void  )
virtual

This method returns the Python wrapper for a C++ object.

It's in the responsibility of the programmer to do the correct reference counting. Basically there are two ways how to implement that: Either always return a new Python object then reference counting is not a matter or return always the same Python object then the reference counter must be incremented by one. However, it's absolutely forbidden to return always the same Python object without incrementing the reference counter.

The default implementation returns 'None'.

Reimplemented from Base::BaseClass.

◆ getUniqueFileName()

std::string PropertyFileIncluded::getUniqueFileName ( const std::string &  path,
const std::string &  filename 
) const
protected

◆ getValue()

◆ isEmpty()

◆ Paste()

◆ Restore()

void PropertyFileIncluded::Restore ( Base::XMLReader )
virtual

This method is used to restore properties from an XML document.

It uses the XMLReader class, which bases on SAX, to read the in Save() written information. Again the Vector as an example:

{
// read my Element
reader.readElement("PropertyVector");
// get the value of my Attribute
_cVec.x = reader.getAttributeAsFloat("valueX");
_cVec.y = reader.getAttributeAsFloat("valueY");
_cVec.z = reader.getAttributeAsFloat("valueZ");
}

Implements Base::Persistence.

References Base::XMLReader::addFile(), Base::XMLReader::getAttribute(), Base::XMLReader::hasAttribute(), Base::XMLReader::readBinFile(), Base::XMLReader::readElement(), Base::XMLReader::readEndElement(), Base::FileInfo::ReadOnly, and Base::FileInfo::setPermissions().

◆ RestoreDocFile()

void PropertyFileIncluded::RestoreDocFile ( Base::Reader )
virtual

This method is used to restore large amounts of data from a file In this method you simply stream in your SaveDocFile() saved data.

Again you have to apply for the call of this method in the Restore() call:

void PropertyMeshKernel::Restore(Base::XMLReader &reader)
{
reader.readElement("Mesh");
std::string file (reader.getAttribute("file") );
if(file == "")
{
// read XML
MeshCore::MeshDocXML restorer(*_pcMesh);
restorer.Restore(reader);
}else{
// initiate a file read
reader.addFile(file.c_str(),this);
}
}

After you issued the reader.addFile() your RestoreDocFile() is called:

void PropertyMeshKernel::RestoreDocFile(Base::Reader &reader)
{
_pcMesh->Read( reader );
}
See also
Base::Reader,Base::XMLReader

Reimplemented from Base::Persistence.

References Base::FileInfo::exists(), Base::FileInfo::isWritable(), Base::FileInfo::ReadOnly, and Base::FileInfo::setPermissions().

◆ Save()

void PropertyFileIncluded::Save ( Base::Writer ) const
virtual

This method is used to save properties to an XML document.

A good example you'll find in PropertyStandard.cpp, e.g. the vector:

void PropertyVector::Save (Writer &writer) const
{
writer << writer.ind() << "<PropertyVector valueX=\"" << _cVec.x <<
"\" valueY=\"" << _cVec.y <<
"\" valueZ=\"" << _cVec.z <<"\"/>" << endl;
}

The writer.ind() expression writes the indentation, just for pretty printing of the XML. As you see, the writing of the XML document is not done with a DOM implementation because of performance reasons. Therefore the programmer has to take care that a valid XML document is written. This means closing tags and writing UTF-8.

See also
Base::Writer

Implements Base::Persistence.

References Base::Writer::addFile(), Base::Writer::decInd(), Base::FileInfo::exists(), Base::FileInfo::filePath(), Base::Writer::incInd(), Base::Writer::ind(), Base::Writer::insertBinFile(), Base::Writer::isForceXML(), and Base::Writer::Stream().

◆ SaveDocFile()

void PropertyFileIncluded::SaveDocFile ( Base::Writer ) const
virtual

This method is used to save large amounts of data to a binary file.

Sometimes it makes no sense to write property data as XML. In case the amount of data is too big or the data type has a more effective way to save itself. In this cases it is possible to write the data in a separate file inside the document archive. In case you want do so you have to re-implement SaveDocFile(). First, you have to inform the framework in Save() that you want do so. Here an example from the Mesh module which can save a (pontetionaly big) triangle mesh:

void PropertyMeshKernel::Save (Base::Writer &writer) const
{
if (writer.isForceXML())
{
writer << writer.ind() << "<Mesh>" << std::endl;
MeshCore::MeshDocXML saver(*_pcMesh);
saver.Save(writer);
}else{
writer << writer.ind() << "<Mesh file=\"" << writer.addFile("MeshKernel.bms", this) << "\"/>" << std::endl;
}

The writer.isForceXML() is an indication to force you to write XML. Regardless of size and effectiveness. The second part informs the Base::writer through writer.addFile("MeshKernel.bms", this) that this object wants to write a file with the given name. The method addFile() returns a unique name that then is written in the XML stream. This allows your RestoreDocFile() method to identify and read the file again. Later your SaveDocFile() method is called as many times as you issued the addFile() call:

void PropertyMeshKernel::SaveDocFile (Base::Writer &writer) const
{
_pcMesh->Write( writer );
}

In this method you can simply stream your content to the file (Base::Writer inheriting from ostream).

Reimplemented from Base::Persistence.

References Base::Writer::Stream().

◆ setPyObject()

void PropertyFileIncluded::setPyObject ( PyObject value)
virtual

Reimplemented from Base::BaseClass.

◆ setValue()


The documentation for this class was generated from the following files:
  • src/App/PropertyFile.h
  • src/App/PropertyFile.cpp
Definition: Reader.h:295
const char * addFile(const char *Name, Base::Persistence *Object)
add a read request of a persistent object
Definition: Reader.cpp:372
double getAttributeAsFloat(const char *AttrName) const
return the named attribute as a double floating point (does type checking)
Definition: Reader.cpp:159
const char * ind(void) const
get the current indentation
Definition: Writer.h:129
virtual void Save(Base::Writer &writer) const override
This method is used to save properties to an XML document.
Definition: PropertyGeo.cpp:165
bool isForceXML(void)
check on state
Definition: Writer.cpp:97
file
Definition: DrawingExample.py:75
std::string addFile(const char *Name, const Base::Persistence *Object)
add a write request of a persistent object
Definition: Writer.cpp:165
virtual void Restore(Base::XMLReader &reader) override
This method is used to restore properties from an XML document.
Definition: PropertyGeo.cpp:170
void readElement(const char *ElementName=0)
read until a start element is found (<name>) or start-end element (<name/>) (with special name if giv...
Definition: Reader.cpp:241
const char * getAttribute(const char *AttrName) const
return the named attribute as a double floating point (does type checking)
Definition: Reader.cpp:174
The XML reader class This is an important helper class for the store and retrieval system of objects ...
Definition: Reader.h:117
The Writer class This is an important helper class for the store and retrieval system of persistent o...
Definition: Writer.h:77