C++ XMLReader::hasAttribute方法代码示例

void PropertyFileIncluded::Restore(Base::XMLReader &reader)
{
    reader.readElement("FileIncluded");
    if (reader.hasAttribute("file")) {
        string file (reader.getAttribute("file") );
        if (!file.empty()) {
            // initate a file read
            reader.addFile(file.c_str(),this);
            // is in the document transient path
            aboutToSetValue();
            _cValue = getDocTransientPath() + "/" + file;
            _BaseFileName = file;
            hasSetValue();
        }
    }
    // section is XML stream
    else if (reader.hasAttribute("data")) {
        string file (reader.getAttribute("data") );
        if (!file.empty()) {
            // is in the document transient path
            aboutToSetValue();
            _cValue = getDocTransientPath() + "/" + file;
            reader.readBinFile(_cValue.c_str());
            reader.readEndElement("FileIncluded");
            _BaseFileName = file;
            hasSetValue();
        }
    }
}

void PropertyPythonObject::restoreObject(Base::XMLReader &reader)
{
    Base::PyGILStateLocker lock;
    try {
        PropertyContainer* parent = this->getContainer();
        if (reader.hasAttribute("object")) {
            if (strcmp(reader.getAttribute("object"),"yes") == 0) {
                Py::Object obj = Py::asObject(parent->getPyObject());
                this->object.setAttr("__object__", obj);
            }
        }
        if (reader.hasAttribute("vobject")) {
            if (strcmp(reader.getAttribute("vobject"),"yes") == 0) {
                Py::Object obj = Py::asObject(parent->getPyObject());
                this->object.setAttr("__vobject__", obj);
            }
        }
    }
    catch (Py::Exception& e) {
        e.clear();
    }
    catch (const Base::Exception& e) {
        Base::Console().Error("%s\n",e.what());
    }
    catch (...) {
        Base::Console().Error("Critical error in PropertyPythonObject::restoreObject\n");
    }
}

void PropertyColumnWidths::Restore(Base::XMLReader &reader)
{
    int Cnt;

    // Column info
    reader.readElement("ColumnInfo");
    Cnt = reader.hasAttribute("Count") ? reader.getAttributeAsInteger("Count") : 0;
    for (int i = 0; i < Cnt; i++) {
        reader.readElement("Column");
        const char* name = reader.hasAttribute("name") ? reader.getAttribute("name") : 0;
        const char * width = reader.hasAttribute("width") ? reader.getAttribute("width") : 0;

        try {
            if (name && width) {
                int col = App::decodeColumn(name);
                int colWidth = atoi(width);

                setValue(col, colWidth);
            }
        }
        catch (...) {
            // Something is wrong, skip this column
        }

    }
    reader.readEndElement("ColumnInfo");
}

void DynamicProperty::Restore(Base::XMLReader &reader)
{
    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ;i<Cnt ;i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        Property* prop = getPropertyByName(PropName);
        try {
            if (!prop) {
                short attribute = 0;
                bool readonly = false, hidden = false;
                const char *group=0, *doc=0, *attr=0, *ro=0, *hide=0;
                if (reader.hasAttribute("group"))
                    group = reader.getAttribute("group");
                if (reader.hasAttribute("doc"))
                    doc = reader.getAttribute("doc");
                if (reader.hasAttribute("attr")) {
                    attr = reader.getAttribute("attr");
                    if (attr) attribute = attr[0]-48;
                }
                if (reader.hasAttribute("ro")) {
                    ro = reader.getAttribute("ro");
                    if (ro) readonly = (ro[0]-48) != 0;
                }
                if (reader.hasAttribute("hide")) {
                    hide = reader.getAttribute("hide");
                    if (hide) hidden = (hide[0]-48) != 0;
                }
                prop = addDynamicProperty(TypeName, PropName, group, doc, attribute, readonly, hidden);
            }
        }
        catch(const Base::Exception& e) {
            // only handle this exception type
            Base::Console().Warning(e.what());
        }

        //NOTE: We must also check the type of the current property because a subclass of
        //PropertyContainer might change the type of a property but not its name. In this
        //case we would force to read-in a wrong property type and the behaviour would be
        //undefined.

        // Don't read transient properties
        if (!(getPropertyType(prop) & Prop_Transient)) {
            if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0)
                prop->Restore(reader);
            else if (prop)
                Base::Console().Warning("%s: Overread data for property %s of type %s, expected type is %s\n",
                    pc->getTypeId().getName(), prop->getName(), prop->getTypeId().getName(), TypeName);
            else
                Base::Console().Warning("%s: No property found with name %s and type %s\n",
                    pc->getTypeId().getName(), PropName, TypeName);
        }
        reader.readEndElement("Property");
    }

    reader.readEndElement("Properties");
}

void PropertyRowHeights::Restore(Base::XMLReader &reader)
{
    int Cnt;

    // Row info
    reader.readElement("RowInfo");
    Cnt = reader.hasAttribute("Count") ? reader.getAttributeAsInteger("Count") : 0;
    for (int i = 0; i < Cnt; i++) {
        reader.readElement("Row");
        const char* name = reader.hasAttribute("name") ? reader.getAttribute("name") : 0;
        const char * height = reader.hasAttribute("height") ? reader.getAttribute("height") : 0;

        try {
            if (name && height) {
                int row = App::decodeRow(name);
                int rowHeight = atoi(height);

                setValue(row, rowHeight);
            }
        }
        catch (...) {
            // Something is wrong, skip this row
        }
    }
    reader.readEndElement("RowInfo");
}

void PropertyColorList::Restore(Base::XMLReader &reader)
{
    reader.readElement("ColorList");
    if (reader.hasAttribute("file")) {
        std::string file (reader.getAttribute("file"));

        if (!file.empty()) {
            // initate a file read
            reader.addFile(file.c_str(),this);
        }
    }
}

void PropertyExpressionEngine::Restore(Base::XMLReader &reader)
{
    reader.readElement("ExpressionEngine");

    int count = reader.getAttributeAsFloat("count");

    for (int i = 0; i < count; ++i) {
        DocumentObject * docObj = freecad_dynamic_cast<DocumentObject>(getContainer());

        reader.readElement("Expression");
        ObjectIdentifier path = ObjectIdentifier::parse(docObj, reader.getAttribute("path"));
        boost::shared_ptr<Expression> expression(ExpressionParser::parse(docObj, reader.getAttribute("expression")));
        const char * comment = reader.hasAttribute("comment") ? reader.getAttribute("comment") : 0;

        setValue(path, expression, comment);
    }

    reader.readEndElement("ExpressionEngine");
}

void PropertyPythonObject::Restore(Base::XMLReader &reader)
{
    reader.readElement("Python");
    if (reader.hasAttribute("file")) {
        std::string file(reader.getAttribute("file"));
        reader.addFile(file.c_str(),this);
    }
    else {
        bool load_json=false;
        bool load_pickle=false;
        bool load_failed=false;
        std::string buffer = reader.getAttribute("value");
        if (reader.hasAttribute("encoded") &&
            strcmp(reader.getAttribute("encoded"),"yes") == 0) {
            buffer = Base::base64_decode(buffer);
        }
        else {
            buffer = decodeValue(buffer);
        }

        Base::PyGILStateLocker lock;
        try {
            boost::regex pickle("^\\(i(\\w+)\\n(\\w+)\\n");
            boost::match_results<std::string::const_iterator> what;
            std::string::const_iterator start, end;
            start = buffer.begin();
            end = buffer.end();
            if (reader.hasAttribute("module") && reader.hasAttribute("class")) {
                Py::Module mod(PyImport_ImportModule(reader.getAttribute("module")),true);
                PyObject* cls = mod.getAttr(reader.getAttribute("class")).ptr();
#if PY_MAJOR_VERSION >= 3
                if (PyType_Check(cls)) {
#else
                if (PyClass_Check(cls)) {
                    this->object = PyInstance_NewRaw(cls, 0);
                }
                else if (PyType_Check(cls)) {
#endif
                    this->object = PyType_GenericAlloc((PyTypeObject*)cls, 0);
                }
                else {
                    throw Py::TypeError("neither class nor type object");
                }
                load_json = true;
            }
            else if (boost::regex_search(start, end, what, pickle)) {
                std::string nam = std::string(what[1].first, what[1].second);
                std::string cls = std::string(what[2].first, what[2].second);
                Py::Module mod(PyImport_ImportModule(nam.c_str()),true);
#if PY_MAJOR_VERSION >= 3
                this->object = PyObject_CallObject(mod.getAttr(cls).ptr(), NULL);
#else
                this->object = PyInstance_NewRaw(mod.getAttr(cls).ptr(), 0);
#endif
                load_pickle = true;
                buffer = std::string(what[2].second, end);
            }
            else if (reader.hasAttribute("json")) {
                load_json = true;
            }
        }
        catch (Py::Exception&) {
            Base::PyException e; // extract the Python error text
            e.ReportException();
            this->object = Py::None();
            load_failed = true;
        }

        aboutToSetValue();
        if (load_json)
            this->fromString(buffer);
        else if (load_pickle)
            this->loadPickle(buffer);
        else if (!load_failed)
            Base::Console().Warning("PropertyPythonObject::Restore: unsupported serialisation: %s\n", buffer.c_str());
        restoreObject(reader);
        hasSetValue();
    }
}

void Cell::restore(Base::XMLReader &reader)
{
    const char* style = reader.hasAttribute("style") ? reader.getAttribute("style") : 0;
    const char* alignment = reader.hasAttribute("alignment") ? reader.getAttribute("alignment") : 0;
    const char* content = reader.hasAttribute("content") ? reader.getAttribute("content") : "";
    const char* foregroundColor = reader.hasAttribute("foregroundColor") ? reader.getAttribute("foregroundColor") : 0;
    const char* backgroundColor = reader.hasAttribute("backgroundColor") ? reader.getAttribute("backgroundColor") : 0;
    const char* displayUnit = reader.hasAttribute("displayUnit") ? reader.getAttribute("displayUnit") : 0;
    const char* alias = reader.hasAttribute("alias") ? reader.getAttribute("alias") : 0;
    const char* rowSpan = reader.hasAttribute("rowSpan") ? reader.getAttribute("rowSpan") : 0;
    const char* colSpan = reader.hasAttribute("colSpan") ? reader.getAttribute("colSpan") : 0;

    // Don't trigger multiple updates below; wait until everything is loaded by calling unfreeze() below.
    PropertySheet::AtomicPropertyChange signaller(*owner);

    if (content) {
        setContent(content);
    }
    if (style) {
        using namespace boost;
        std::set<std::string> styleSet;

        escaped_list_separator<char> e('\0', '|', '\0');
        std::string line = std::string(style);
        tokenizer<escaped_list_separator<char> > tok(line, e);

        for(tokenizer<escaped_list_separator<char> >::iterator i = tok.begin(); i != tok.end();++i)
            styleSet.insert(*i);
        setStyle(styleSet);
    }
    if (alignment) {
        int alignmentCode = 0;
        using namespace boost;

        escaped_list_separator<char> e('\0', '|', '\0');
        std::string line = std::string(alignment);
        tokenizer<escaped_list_separator<char> > tok(line, e);

        for(tokenizer<escaped_list_separator<char> >::iterator i = tok.begin(); i != tok.end();++i)
            alignmentCode = decodeAlignment(*i, alignmentCode);

        setAlignment(alignmentCode);
    }
    if (foregroundColor) {
        App::Color color = decodeColor(foregroundColor, App::Color(0, 0, 0, 1));

        setForeground(color);
    }
    if (backgroundColor) {
        App::Color color = decodeColor(backgroundColor, App::Color(1, 1, 1, 1));

        setBackground(color);
    }
    if (displayUnit)
        setDisplayUnit(displayUnit);
    if (alias)
        setAlias(alias);

    if (rowSpan || colSpan) {
        int rs = rowSpan ? atoi(rowSpan) : 1;
        int cs = colSpan ? atoi(colSpan) : 1;

        setSpans(rs, cs);
    }
}

void DynamicProperty::Restore(Base::XMLReader &reader)
{
    //first all extensions must be initialised so that they can handle their properties
    if(this->pc->isDerivedFrom(App::ExtensionContainer::getClassTypeId()))
        static_cast<App::ExtensionContainer*>(this->pc)->restoreExtensions(reader);

    reader.readElement("Properties");
    int Cnt = reader.getAttributeAsInteger("Count");

    for (int i=0 ; i<Cnt ; i++) {
        reader.readElement("Property");
        const char* PropName = reader.getAttribute("name");
        const char* TypeName = reader.getAttribute("type");
        Property* prop = getPropertyByName(PropName);
        try {
            if (!prop) {
                short attribute = 0;
                bool readonly = false, hidden = false;
                const char *group=0, *doc=0, *attr=0, *ro=0, *hide=0;
                if (reader.hasAttribute("group"))
                    group = reader.getAttribute("group");
                if (reader.hasAttribute("doc"))
                    doc = reader.getAttribute("doc");
                if (reader.hasAttribute("attr")) {
                    attr = reader.getAttribute("attr");
                    if (attr) attribute = attr[0]-48;
                }
                if (reader.hasAttribute("ro")) {
                    ro = reader.getAttribute("ro");
                    if (ro) readonly = (ro[0]-48) != 0;
                }
                if (reader.hasAttribute("hide")) {
                    hide = reader.getAttribute("hide");
                    if (hide) hidden = (hide[0]-48) != 0;
                }
                prop = addDynamicProperty(TypeName, PropName, group, doc, attribute, readonly, hidden);
            }
        }
        catch(const Base::Exception& e) {
            // only handle this exception type
            Base::Console().Warning(e.what());
        }

        //NOTE: We must also check the type of the current property because a subclass of
        //PropertyContainer might change the type of a property but not its name. In this
        //case we would force to read-in a wrong property type and the behaviour would be
        //undefined.

        // Don't read transient properties
        if (!(getPropertyType(prop) & Prop_Transient)) {
            if (prop && strcmp(prop->getTypeId().getName(), TypeName) == 0) {
                try {
                    prop->Restore(reader);
                }
                catch (const Base::XMLParseException&) {
                    throw; // re-throw
                }
                catch (const Base::Exception &e) {
                    Base::Console().Error("%s\n", e.what());
                }
                catch (const std::exception &e) {
                    Base::Console().Error("%s\n", e.what());
                }
#ifndef FC_DEBUG
                catch (...) {
                    Base::Console().Error("DynamicProperty::Restore: Unknown C++ exception thrown");
                }
#endif
            }
            else if (prop) {
                Base::Console().Warning("%s: Overread data for property %s of type %s, expected type is %s\n",
                                        pc->getTypeId().getName(), prop->getName(), prop->getTypeId().getName(), TypeName);
            }
            else {
                Base::Console().Warning("%s: No property found with name %s and type %s\n",
                                        pc->getTypeId().getName(), PropName, TypeName);
            }
        }
        reader.readEndElement("Property");
    }

    reader.readEndElement("Properties");
}