vos/metaobjects/text/text.cc

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/* $Id: text.cc,v 1.1 2002/10/31 03:28:51 reed Exp $ */



/* This file was generated by otd2cpp.pl, a script for ADR by Reed Hedges <reed@zerohour.net>.
   Search for TODO for stuff that needs editing. You will want to especially fill in constructors,
   destructors, message handlers, non-property subobjects...

   I can make no garuntee that this code will work, or even that it even is safe to run.
   Use it at your own risk.
*/

/** @file text.cc Code: a MetaObject for Text object types. */

#include "vos/vos.hh"
#include "property/property.hh"
#include "text.hh"


/* Constructors */

Text::Text(MetaObject* s) : MetaObject(s) {

}

LocalText::LocalText(MetaObject* s) : Text(s), MetaObject(s) {

}


/* Initialize required subobjects: */
void LocalText::initialize() {
}


RemoteText::RemoteText(MetaObject* s) : Text(s), MetaObject(s) {

}



/* Return type string ("text:text") */

const string Text::getType() {
    return string("text:text");
}

/* Register extenders with libvos MetaFactory */
void Text::registerExtenders() {
    LocalSite::addLocalObjectExtension(typeid(LocalText).name(), &LocalText::new_LocalText);
    LocalSite::addLocalObjectExtension(typeid(Text).name(), &LocalText::new_LocalText);
    LocalSite::addLocalObjectExtension("text:text", &LocalText::new_LocalText);
    RemoteSite::addRemoteObjectExtension(typeid(RemoteText).name(), &RemoteText::new_RemoteText);
    RemoteSite::addRemoteObjectExtension(typeid(Text).name(), &RemoteText::new_RemoteText);
    RemoteSite::addRemoteObjectExtension("text:text", &RemoteText::new_RemoteText);
}


/* Get and set Subproperties and other Subobjects */

string Text::getText(string lang) {
    string s;
    rREF(Vobject&, v, findObject("text:"+lang), s = meta_cast<Property&>(v).read(); );
    LOG("debug", 0, "Text::getText: returning " << s);
    return s;
}


string Text::getText() {
    return getPrimaryProperty().read();
//    return getText(primaryLanguage());
}


string Text::getTextDatatype(string lang) {
    string s;
    rREF(Vobject&, v, findObject("text:"+lang), s = meta_cast<Property&>(v).getDataType(); );
    return s;
}

string Text::getTextDatatype() {
    string s;
    rREF(Property&, p, getPrimaryProperty(), s = p.getDataType(); );
    return s;
}


// build deque of all children starting with the prefix "text:"
deque<string>* Text::listLanguages() {
    deque<string>* langs = new deque<string>;
    const ChildList& children = getChildren();
    ChildList::const_iterator i;
    string s;
    for(i = children.begin(); i != children.end(); i++) {
        s = (*i)->contextual_name;
        if( s.substr(0, 5) == "text:" ) {
            langs->push_back( s.substr(6) );
        }
    }
    return langs;
}


// find first child that starts with the prefix "text:"
// not reference counted!!
Property& Text::getPrimaryProperty() {

    // an alternative implementation method would be to store a pointer to first "text:*" child, updated by a a child change listener.
 //   LOG("debug", 0, "getPrimaryProperty: looking through children...");
    const ChildList& children = getChildren();
    ChildList::const_iterator i;
    for(i = children.begin(); i != children.end(); i++) {
//        LOG("debug", 0, "Text::getPrimaryProperty: looking at child named " << (*i)->contextual_name << ". substr(0,5) is " << (*i)->contextual_name.substr(0, 5) );
        if( (*i)->contextual_name.substr(0, 5) == "text:" ) {
            return meta_cast<Property&>(*((*i)->child));
        }
    }

    // no "text:" object found.
    throw NoSuchObjectError("No \"text:\" objects found.");
}

Property& Text::getProperty(const string& lang) {
    return meta_cast<Property&>(findObject(string("text:") + lang));
}

string Text::primaryLanguage() {
    ParentChildRelation& rel = getPrimaryProperty().findParent(*this);
    return rel.contextual_name.substr(6);
}





void Text::setText(string lang, const string& value, const string& datatype = "?") {
    //TODO: you might want to use different access control on the property
    Property::setProperty(*this, "text:"+lang, value, datatype, &NoPropertyAccessControl::static_);
}

void Text::setText(const string& value, const string& datatype = "?") {
    string lang;
    try {
        lang = primaryLanguage();
    } catch(NoSuchObjectError) {
        lang = "UND";
    }
    setText(lang, value, datatype);
}


/* Process local object messages */
void LocalText::sendMessage(Message* m) {


    /* Let superclass have message */
    Text::sendMessage(m);
}





/* Process remote update messages */
void RemoteText::sendUpdateMessage(Message* m) {


    /* branch to update message handlers specific to RemoteText */

    /* let superclass have message... */
    Text::sendUpdateMessage(m);
}

/* Generators for factory */


MetaObject* LocalText::new_LocalText(MetaObject* s, const string& type) {
    LocalText* o = new LocalText(s);
    o->initialize();
    return o;
}

MetaObject* RemoteText::new_RemoteText(MetaObject* s, const string& type) {
    return new RemoteText(s);
}

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