source: downloads/ColladaPlugin/src/OgreColladaUtils.cpp @ 45

/**
 * This source file is part of OgreColladaPlugin
 * an addon for OGRE (Object-oriented Graphics Rendering Engine)
 * For the latest info, see http://www.ogre3d.org/
 *
 * This program is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free Software
 * Foundation; either version 2 of the License, or (at your option) any later
 * version.

 * This program 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 Lesser General Public License for more details.

 * You should have received a copy of the GNU Lesser General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307, USA, or go to
 * http://www.gnu.org/copyleft/lesser.txt.
 *
 * @author      Philipp Hartl
 * @see         README
 */

#include "OgreColladaUtils.h"
#include "OgreColladaSyntax.h"

#include "OgreColourValue.h"
#include "OgreStringVector.h"

namespace Ogre
{
        //-------------------------------------------------------------------------
        xmlNode *ColladaUtils::getChildById(xmlNode *start, const char *id)
        {
                if (start != NULL && id != NULL)
                {
                        // we are looking for strings without '#'
                        if (*id == '#') ++id;

                        // walk through all children
                        for (xmlNode *c = start->children; c != NULL; c = c->next)
                        {
                                // we are interested on element nodes only
                                if (c->type != XML_ELEMENT_NODE) continue;

                                String cid = getProperty(c, CS_ATR_ID);
                                if (!cid.empty())
                                {
                                        if (cid == id) return c;
                                }
                        }
                }

                return NULL;
        }

        //-------------------------------------------------------------------------
        xmlNode *ColladaUtils::getChildByTagName(xmlNode *start, const String &tagname)
        {
                if (start != NULL && !tagname.empty())
                {
                        for (xmlNode *c = start->children; c != NULL; c = c->next)
                        {       
                                if (c->type != XML_ELEMENT_NODE) continue;

                                if (tagname == (const char *)c->name) return c;
                        }
                }

                return NULL;
        }

        //-------------------------------------------------------------------------
        xmlNodePtrVector ColladaUtils::getChildsByTagName(xmlNode *start, const String &tagname)
        {
                xmlNodePtrVector nodes;

                if (start != NULL && !tagname.empty())
                {
                        for (xmlNode *c = start->children; c != NULL; c = c->next)
                        {
                                if (c->type != XML_ELEMENT_NODE) continue;

                                if (tagname == (const char *)c->name) nodes.push_back(c);
                        }
                }

                return nodes;
        }

        //-------------------------------------------------------------------------
        String ColladaUtils::getContent(xmlNode *node)
        {
                String result = "";
                if (node != NULL)
                {
                        xmlChar *data = xmlNodeGetContent(node);

                        if (data != NULL)
                        {
                                result = (const char *)data;
                                xmlFree(data);
                        }
                }
                return result;
        }

        //-------------------------------------------------------------------------
        String ColladaUtils::getContentDirect(xmlNode *node)
        {
                String result = "";
                if (node != NULL)
                {
                        if (node->children != NULL &&
                                node->children->type == XML_TEXT_NODE &&
                                node->children->content != NULL)
                        {
                                result = (const char *)node->children->content;
                        }
                }
                return result;
        }

        //-------------------------------------------------------------------------
        String ColladaUtils::getProperty(xmlNode *node, const char *property)
        {
                String result = "";
                if (node != NULL && property != NULL)
                {
                        xmlChar *data = xmlGetProp(node, (const xmlChar *)property);
                
                        if (data != NULL)
                        {
                                result = (const char *)data;
                                xmlFree(data);
                        }
                }

                return result;
        }

        //-------------------------------------------------------------------------
        String ColladaUtils::getProperty(xmlNode *node, const String &property)
        {
                String result = "";
                if (node != NULL && !property.empty())
                {
                        xmlChar *data = xmlGetProp(node, (const xmlChar *)property.c_str());
                
                        if (data != NULL)
                        {
                                result = (const char *)data;
                                xmlFree(data);
                        }
                }

                return result;
        }

        //-------------------------------------------------------------------------
        void ColladaUtils::printChildElements(xmlNode *node)
        {
                for (xmlNode *child = node->children; child != NULL; child = child->next)
                {
                        if (child->type != XML_ELEMENT_NODE) continue;
                        LogManager::getSingleton().logMessage("ColladaUtils::printElementNames - xml element: " + String((const char *)child->name));
                }
        }

        //-------------------------------------------------------------------------
        void ColladaUtils::printAllElements(xmlNode *node)
        {
                for (xmlNode *cur_node = node; cur_node != NULL; cur_node = cur_node->next)
                {
                        if (cur_node->type != XML_ELEMENT_NODE) continue;
                        LogManager::getSingleton().logMessage("ColladaUtils::printElementNames - xml element: " + String((const char *)cur_node->name));

                        printAllElements(cur_node->children);
                }
        }
}